Safety and efficacy of a feed additive consisting of a tincture derived from the leaves of Eucalyptus globulus Labill. (eucalyptus tincture) for all animal species (FEFANA asbl)
Vasileios Bampidis, Giovanna Azimonti, Maria de Lourdes Bastos, Henrik Christensen, Birgit Dusemund, Mojca Durjava, Maryline Kouba, Marta López‐Alonso, Secundino López Puente, Francesca Marcon, Baltasar Mayo, Alena Pechová, Mariana Petkova, Fernando Ramos, Roberto Edoardo Villa

TL;DR
This paper evaluates the safety and effectiveness of eucalyptus tincture as a feed additive for all animal species.
Contribution
The study provides safety thresholds for eucalyptus tincture in animal feed and identifies species-specific concerns.
Findings
Eucalyptus tincture is safe for short-living animals at specified feed levels.
No consumer safety concerns arise from using the tincture at these levels.
The tincture is irritant to skin and eyes and a potential sensitiser.
Abstract
Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of a tincture from the leaves of Eucalyptus globulus Labill. (eucalyptus tincture) when used as a sensory additive for all animal species. The product is a ■■■■■ solution, with a dry matter content of ~ 1.86%, which contains on average 0.454% phenolic acids and flavonoids (of which 0.280% was gallic acid), 0.0030% 1,8‐cineole and 0.00012% methyleugenol. In the absence of analytical data on the occurrence of mono‐ or diformylated adducts of acylphloroglucinols with terpenes in the tincture and in the absence of toxicity data, the Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) could not conclude on the use of eucalyptus tincture for long‐living and reproductive animals. For short‐living animals (species for fattening), the additive was…
Genes, proteins, chemicals, diseases, species, mutations and cell lines named across the full text — each resolved to its canonical identifier and authoritative record.
| Constituent | Mean % (w/w) | Range % (w/w) |
|---|---|---|
| Dry matter | 1.86 | 1.77–1.98 |
| Ash | 0.09 | 0.07–0.11 |
| Organic fraction | 1.76 | 1.66–1.91 |
| Proteins | 0.50 | 0.24–0.30 |
| Lipids | < 0.50 | < 0.50 |
| ‘Carbohydrates+fibre’ | 0.76 | 0.33–1.00 |
| Solvent | 98.14 | 98.02–98.23 |
| Constituent | Method | Mean % (w/w) | Range % (w/w) |
|---|---|---|---|
| Total phenolic compounds | Folin–Ciocalteu | 0.454 | 0.404–0.491 |
| Gallic acid | HPTLC | 0.280 | 0.262–0.303 |
| Ellagic acid | HPLC | 0.016 | 0.014–0.018 |
| Flavonoids | Spectrophotometry | 0.030 | 0.028‐0.032 |
| 1,8‐Cineole | GC‐FID | 0.0030 | 0.0023–0.0036 |
| Methyleugenol | GC‐FID | 0.00012 | 0.00011–0.00012 |
| Animal category | Daily feed intake (g DM/kg bw) | Proposed use level in feed (mg additive/kg complete feed) | Highest feed concentration (mg 1,8‐cineole/kg complete feed) | Maximum safe concentration (mg 1,8‐cineole/kg complete feed) |
|---|---|---|---|---|
| Chickens for fattening | 79 | 50 | 0.002 | 11 |
| Laying hens | 53 | 50 | 0.002 | 17 |
| Turkeys for fattening | 59 | 50 | 0.002 | 15 |
| Piglets | 44 | 50 | 0.002 | 20 |
| Pigs for fattening | 37 | 50 | 0.002 | 24 |
| Sows lactating | 30 | 50 | 0.002 | 31 |
| Veal calves (milk replacer) | 19 | 50 | 0.002 | 50 |
| Cattle for fattening | 20 | 50 | 0.002 | 44 |
| Dairy cows | 31 | 50 | 0.002 | 29 |
| Sheep/goats | 20 | 50 | 0.002 | 44 |
| Horses | 20 | 200 | 0.007 | 44 |
| Rabbits | 50 | 50 | 0.002 | 18 |
| Salmonids | 18 | 50 | 0.002 | 50 |
| Dogs | 17 | 50 | 0.002 | 53 |
| Cats | 20 | 50 | 0.002 | 9 |
| Ornamental fish | 5 | 50 | 0.002 | 196 |
| Animal category | Daily feed intake (g DM/kg bw) | Proposed use level in feed (mg additive/kg complete feed) | Highest feed concentration (mg gallic acid/ kg complete feed) | Maximum safe concentration (mg gallic acid/ kg complete feed) |
|---|---|---|---|---|
| Chickens for fattening | 79 | 50 | 0.152 | 13 |
| Laying hens | 53 | 50 | 0.152 | 20 |
| Turkeys for fattening | 59 | 50 | 0.152 | 18 |
| Piglets | 44 | 50 | 0.152 | 24 |
| Pigs for fattening | 37 | 50 | 0.152 | 29 |
| Sows lactating | 30 | 50 | 0.152 | 37 |
| Veal calves (milk replacer) | 19 | 50 | 0.152 | 60 |
| Cattle for fattening | 20 | 50 | 0.152 | 52 |
| Dairy cows | 31 | 50 | 0.152 | 34 |
| Sheep/goats | 20 | 50 | 0.152 | 52 |
| Horses | 20 | 200 | 0.606 | 52 |
| Rabbits | 50 | 50 | 0.152 | 21 |
| Salmonids | 18 | 50 | 0.152 | 60 |
| Dogs | 17 | 50 | 0.152 | 63 |
| Cats | 20 | 50 | 0.152 | 10 |
| Ornamental fish | 5 | 50 | 0.152 | 233 |
| Highest feed concentration ellagic acid | Highest feed concentration flavonoids | Maximum safe concentration | |||
|---|---|---|---|---|---|
| Animal category |
Daily feed intake (g DM/kg bw) |
Proposed use level in feed (mg additive/kg complete feed) | (mg/kg complete feed) | ||
| Chickens for fattening | 79 | 50 | 0.009 | 0.016 | 0.02 |
| Laying hens | 53 | 50 | 0.009 | 0.016 | 0.02 |
| Turkeys for fattening | 59 | 50 | 0.009 | 0.016 | 0.02 |
| Piglets | 44 | 50 | 0.009 | 0.016 | 0.03 |
| Pigs for fattening | 37 | 50 | 0.009 | 0.016 | 0.04 |
| Sows lactating | 30 | 50 | 0.009 | 0.016 | 0.05 |
| Veal calves (milk replacer) | 19 | 50 | 0.009 | 0.016 | 0.08 |
| Cattle for fattening | 20 | 50 | 0.009 | 0.016 | 0.07 |
| Dairy cows | 31 | 50 | 0.009 | 0.016 | 0.04 |
| Sheep/goats | 20 | 50 | 0.009 | 0.016 | 0.07 |
| Horses | 20 | 200 | 0.036 | 0.064 | 0.07 |
| Rabbits | 50 | 50 | 0.009 | 0.016 | 0.03 |
| Salmonids | 18 | 50 | 0.009 | 0.016 | 0.08 |
| Dogs | 17 | 50 | 0.009 | 0.016 | 0.08 |
| Cats | 20 | 50 | 0.009 | 0.016 | 0.07 |
| Ornamental fish | 5 | 50 | 0.009 | 0.016 | 0.29 |
| Target species |
Daily feed intake g DM/kg bw |
Use level in feed mg additive/kg complete feed |
Highest feed concentration mg/kg complete feed |
Intake μg/kg bw per day |
|---|---|---|---|---|
| Long‐living and reproductive animals | ||||
| Laying hens | 53 | 50 | 0.246 | 14.8 |
| Sows lactating | 30 | 50 | 0.246 | 8.4 |
| Dairy cows | 31 | 50 | 0.246 | 8.6 |
| Sheep/goats | 20 | 50 | 0.246 | 5.6 |
| Horses | 20 | 200 | 0.982 | 22.3 |
| Rabbits | 50 | 50 | 0.246 | 13.9 |
| Dogs | 17 | 50 | 0.246 | 4.6 |
| Cats | 20 | 50 | 0.246 | 5.6 |
| Ornamental fish | 5 | 50 | 0.246 | 1.3 |
| Short‐living animals (species for fattening) | ||||
| Chickens for fattening | 79 | 50 | 0.246 | 22.0 |
| Turkeys for fattening | 59 | 50 | 0.246 | 16.4 |
| Piglets | 44 | 50 | 0.246 | 12.3 |
| Pigs for fattening | 37 | 50 | 0.246 | 10.2 |
| Veal calves (milk replacer) | 19 | 50 | 0.246 | 5.3 |
| Cattle for fattening | 20 | 50 | 0.246 | 5.6 |
| Sheep/goats for meat production | 20 | 50 | 0.246 | 5.6 |
| Horses for meat production | 20 | 200 | 0.982 | 22.3 |
| Rabbits for meat production | 50 | 50 | 0.246 | 13.9 |
| Salmonids | 18 | 50 | 0.246 | 4.9 |
| Methyleugenol intake | MOE | ||||
|---|---|---|---|---|---|
| Target species |
Daily feed intake g DM/kg bw |
Body weight Kg |
Use level in feed mg/kg | μg/kg bw per day | |
| Chickens for fattening | 79 | 2 | 50 | 0.0054 | 4,087,457 |
| Laying hens | 53 | 2 | 50 | 0.0036 | 6,092,624 |
| Turkeys for fattening | 59 | 3 | 50 | 0.0040 | 5,504,132 |
| Piglets | 44 | 20 | 50 | 0.0030 | 7,338,843 |
| Pigs for fattening | 37 | 60 | 50 | 0.0025 | 8,806,612 |
| Sows lactating | 30 | 175 | 50 | 0.0021 | 10,702,479 |
| Veal calves (milk replacer) | 19 | 100 | 50 | 0.0012 | 18,347,107 |
| Cattle for fattening | 20 | 400 | 50 | 0.0014 | 16,145,455 |
| Dairy cows | 31 | 650 | 50 | 0.0021 | 10,494,545 |
| Sheep/goats | 20 | 60 | 50 | 0.0014 | 16,145,455 |
| Horses | 20 | 400 | 200 | 0.0055 | 4,036,364 |
| Rabbits | 50 | 2 | 50 | 0.0034 | 6,458,182 |
| Salmonids | 18 | 0.12 | 50 | 0.0012 | 18,451,948 |
| Dogs | 17 | 15 | 50 | 0.0011 | 19,374,545 |
| Cats | 20 | 3 | 50 | 0.0014 | 16,145,455 |
| Ornamental fish | 5 | 0.012 | 50 | 0.0003 | 71,757,576 |
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Taxonomy
TopicsAgricultural safety and regulations · Pesticide Residue Analysis and Safety · Pesticide Exposure and Toxicity
INTRODUCTION
1
Background and Terms of Reference
1.1
Regulation (EC) No 1831/20031 establishes the rules governing the Community authorisation of additives for use in animal nutrition. In particular, Article 4(1) of that Regulation lays down that any person seeking authorisation for a feed additive or for a new use of a feed additive shall submit an application in accordance with Article 7. In addition, Article 10(2) of that Regulation specifies that for existing products within the meaning of Article 10(1), an application shall be submitted in accordance with Article 7, within a maximum of 7 years after the entry into force of this Regulation.
The European Commission received a request from Feed Flavourings Authorisation Consortium European Economic Interest Grouping (FFAC EEIG)2 for authorisation/re‐evaluation of 18 additives (namely geranium oil, geranium rose oil, eucalyptus oil, eucalyptus tincture, clove oil, clove tincture, broom teatree oil, purple loosestrife tincture, tea tree oil, melaleuca cajuputi oil, niaouli oil, allspice oil, bay oil, pomegranate bark extract, bambusa tincture, citronella oil, lemongrass oil and vetiveria oil) belonging to botanically defined group (BDG) 07 – Geraniales, Myrtales, Poales when used as feed additives for all animal species (category: sensory additives; functional group: flavourings). During the assessment, the applicant withdrew the application for six additives.3 These additives were deleted from the register of feed additives.4 During the course of the assessment, this application was split and the present opinion covers only one out of the remaining 12 additives under application: eucalyptus tincture from Eucalyptus globulus Labill.5 for all animal species.
The remaining 11 additives belonging to botanically defined group (BDG) 07 – Geraniales, Myrtales, Poales under application are assessed in separate opinions.
According to Article 7(1) of Regulation (EC) No 1831/2003, the Commission forwarded the application to the European Food Safety Authority (EFSA) as an application under Article 4(1) (authorisation of a feed additive or new use of a feed additive) and under Article 10(2) (re‐evaluation of an authorised feed additive). EFSA received directly from the applicant the technical dossier in support of this application. The particulars and documents in support of the application were considered valid by EFSA as of 21 December 2010.
According to Article 8 of Regulation (EC) No 1831/2003, EFSA, after verifying the particulars and documents submitted by the applicant, shall undertake an assessment in order to determine whether the feed additive complies with the conditions laid down in Article 5. EFSA shall deliver an opinion on the safety for the target animals, consumer, user and the environment and on the efficacy of the product eucalyptus tincture (E. globulus), when used under the proposed conditions of use (see Section 3.3.3).
Additional information
1.2
A tincture from E. globulus Labill. (eucalyptus tincture) is currently authorised as a feed additive according to the entry in the European Union Register of Feed Additives pursuant to Regulation (EC) No 1831/2003 (2b natural products – botanically defined). It has not been assessed as a feed additive in the EU.
DATA AND METHODOLOGIES
2
Data
2.1
The present assessment is based on data submitted by the applicant in the form of a technical dossier6 in support of the authorisation request for the use of eucalyptus tincture from E. globulus as a feed additive. The dossier was received on 26/3/2024 and the general information and supporting documentation is available at https://open.efsa.europa.eu/questions/EFSA‐Q‐2024‐00192.7
The FEEDAP Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) used the data provided by the applicant together with data from other sources, such as previous risk assessments by EFSA or other expert bodies, peer‐reviewed scientific papers, other scientific reports and experts' knowledge, to deliver the present output.
Some of the components of the tincture under assessment have been already evaluated by the FEEDAP Panel as chemically defined flavourings. The applicant submitted a written agreement to use the data submitted for the assessment of chemically defined flavourings (dossiers, publications and unpublished reports) for the risk assessment of additives belonging to BDG 07, including the current one under assessment.8
EFSA has verified the European Union Reference Laboratory (EURL) report as it relates to the methods used for the control of the phytochemical markers in the additive. The evaluation report is related to the methods of analysis for each feed additive included in the group BDG 07 (Geraniales, Myrtales, Poales). During the assessment, upon request from EFSA, the EURL issued two amendments9 of the original report. The additive under assessment, eucalyptus tincture, is included in the second amendment. In particular, the EURL recommended methods based on (i) spectrophotometry for the determination of total polyphenols and flavonoids, (ii) gas chromatography coupled with flame ionisation detection (GC‐FID) for the determination of 1,8‐cineole (eucalyptol, the phytochemical marker) and (iii) high‐performance thin‐layer chromatography (HPTLC) for the determination of the phytochemical marker gallic acid in eucalyptus tincture.10
Methodologies
2.2
The approach followed by the FEEDAP Panel to assess the safety and the efficacy of eucalyptus tincture from E. globulus is in line with the principles laid down in Regulation (EC) No 429/200811 and the relevant guidance documents: Opinion of the Scientific Committee on harmonised approach for risk assessment of substances which are both genotoxic and carcinogenic (EFSA, 2005), Statement on the applicability of the Margin of Exposure approach for the safety assessment of impurities which are both genotoxic and carcinogenic in substances added to food/feed (EFSA Scientific Committee, 2012), Guidance on safety assessment of botanicals and botanical preparations intended for use as ingredients in food supplements (EFSA Scientific Committee, 2009), Compendium of botanicals that have been reported to contain toxic, addictive, psychotropic or other substances of concern (EFSA, 2012), Guidance for the preparation of dossiers for sensory additives (EFSA FEEDAP Panel, 2012a), Guidance on the identity, characterisation and conditions of use of feed additives (EFSA FEEDAP Panel, 2017a), Guidance on the safety of feed additives for the target species (EFSA FEEDAP Panel, 2017b), Guidance on the assessment of the safety of feed additives for the consumer (EFSA FEEDAP Panel, 2017c), Guidance on the assessment of the efficacy of feed additives (EFSA FEEDAP Panel, 2018), Guidance on the assessment of the safety of feed additives for the environment (EFSA FEEDAP Panel, 2019), Guidance on the assessment of the safety of feed additives for the users (EFSA FEEDAP Panel, 2023), Guidance document on harmonised methodologies for human health, animal health and ecological risk assessment of combined exposure to multiple chemicals (EFSA Scientific Committee, 2019a), Statement on the genotoxicity assessment of chemical mixtures (EFSA Scientific Committee, 2019b), Guidance on the use of the Threshold of Toxicological Concern approach in food safety assessment (EFSA Scientific Committee, 2019c) and General approach to assess the safety for the target species of botanical preparations which contain compounds that are genotoxic and/or carcinogenic (EFSA FEEDAP Panel, 2021a).12
ASSESSMENT
3
The additive under assessment, eucalyptus tincture, is derived from the leaves of E. globulus Labill. and is intended for use as a sensory additive (functional group: flavouring compounds) in feed and water for drinking for all animal species.
Origin and extraction
3.1
E. globulus Labill. is a fast‐growing evergreen tree native to Australia belonging to the myrtle (Myrtaceae) family. The species is commonly known as the southern blue gum tree or simply the blue gum tree in reference to the glaucous colour of the adult leaves. There are four recognised sub‐species arising from different geographical locations within Australia, each with a locally associated name (e.g. Tasmanian blue gum, Maidan's gum). E. globulus is now grown commercially in many countries.
The tincture is produced from the dried leaves by extended extraction for ■■■■■ under ambient conditions with a ■■■■■ and a plant to solvent ratio of ■■■■■. The tincture is then recovered by pressing to separate solid and liquid phases and the extracted solution is then clarified by filtration.
Uses other than feed flavouring
3.2
While there is no specific EU authorisation for any E. globulus preparation when used to provide flavour in food, according to Regulation (EC) No 1334/200813 flavouring preparations produced from food, may be used without an evaluation and approval.
An essential oil produced from the leaves of E. globulus is used to flavour food. Apart from an herbal tea prepared from the leaf, there are no further food uses for E. globulus itself.
‘Eucalyptus leaf (Eucalypti folium)’ and ‘Eucalyptus oil (Eucalypti aetheroleum)’ from E. globulus Labill. are described in monographs of the European Pharmacopoeia 11.0 (PhEur, 2022a, 2022b) and of the European Medicines Agency (EMA, 2013a, 2013b, 2014a, 2014b, 2022) for medicinal uses. Eucalyptus oil has been also evaluated for veterinarian uses (EMA, 1998).
Characterisation
3.3
Characterisation of eucalyptus tincture
3.3.1
Eucalyptus tincture is a brown liquid, with a characteristic fresh, camphorated and mentholated odour which is characteristic of 1,8‐cineole (synonym: eucalyptol). It has an average density of 956 kg/m^3^ (range: 955–957 kg/m^3^) and a pH of 5.22 (5.20–5.29).14
Table 1 summarises the results of proximate analysis of five batches of the additive.15 The solvent represents about 98.1% of the additive leaving a dry matter (DM) content of about 1.9%. The DM consists of inorganic material measured as ash (5.1%) and a plant‐derived organic fraction of 94.9%, which includes protein, lipids and ‘carbohydrates’, described as the fraction of organic matter remaining after subtraction of the values for protein and lipids. It contains a variety of plant‐derived compounds including phenolic compounds, in addition to any carbohydrate present.
The fraction of secondary metabolites was characterised in the same batches of the tincture and the results expressed as % (w/w)16 are summarised in Table 2. The tincture was shown to contain total phenolic compounds (≤ 0.491%) determined by spectrophotometry (at 760 nm) and expressed as gallic acid equivalents (GAE).17 Several unidentified phenolic acids and flavonoids were detected by HPTLC.18 The concentration of gallic acid (≤ 0.303%) was determined by HPTLC and that of ellagic acid (≤ 0.018%) by high‐performance liquid chromatography (HPLC). The concentration of flavonoids (≤ 0.032% expressed as quercetin equivalents) was determined by spectrophotometry at 415 nm (PhEur 10.0, p. 1627).19 The concentration of 1,8‐cineole [03.001] was determined by GC‐FID in the same five batches of the tincture.20
The identified secondary metabolites account on average for 24.6% of the DM content of the tincture (range: 22.5%–25.3%).
According to existing monographs (PhEur, 2022a; PhEur Commentary, 2022; EMA, 2013a), the dried leaves from E. globulus Labill. are known to contain a fraction of phenolic compounds in addition to the occurrence of essential oil (1%–3%, main component 1,8‐cineole) and of triterpenoids, such as derivatives of ursolic and oleanolic acids. The phenolic fraction consists of (i) mono‐ or diformylated adducts of acylphloroglucinols with terpenes (typical for the genus Eucalyptus), such as euglobals, macrocarpals and eucalypton (ii) hydrolysable tannins, especially of the ellagitannin type (iii) monoterpenoid galloyl‐glucose‐derivatives, such as eucaglobulin, cypellocarpin, globulusin, (iv) condensed tannins (proanthocyanidins), (v) flavonoids, especially quercetin derivatives (vi) phenolic acids (not abundant with the exception of ellagic acid) (e.g. PhEur Commentary, 2022; EMA, 2013a).
Substances of concern
3.3.1.1
The applicant performed a literature search to identify substances of concern in E. globulus and its botanical preparations, essential oils and aqueous and hydroalcoholic extracts.21 Among the compounds identified in the essential oil from the leaves of E. globulus, 1,8‐cineole (up to 82.2%) is reported in the EFSA Compendium of botanicals as substance of concern (EFSA, 2012).22 1,8‐Cineole is the main constituent of eucalyptus oil and is an authorised flavouring. The presence of methyleugenol (3.5%) in an essential oil from the leaves of E. globulus has been reported in one reference (Vieira et al., 2017). No information on the occurrence of substances of concern in aqueous alcoholic preparations was retrieved.
The applicant provided analytical data by GC‐FID on the content of 1,8‐cineole (23.0–35.6 mg/kg)23 and methyleugenol (1.10–1.21 mg/kg)24 in five batches of the additive (see Table 2). There is no specification defining limit values for undesirable compounds in the tincture.
Analytical data on the occurrence in the tincture of mono‐ or diformylated adducts of acylphloroglucinols with terpenes, which are considered of toxicological relevance, were not provided. In a worst‐case scenario, it is assumed that the estimated maximum concentration of mono‐ or diformylated adducts of acylphloroglucinols with terpenes in the tincture would correspond to the highest analysed concentration for total phenolic compounds of 0.491% (w/w).
Impurities
3.3.1.2
The applicant controls contamination at the level of the raw material, including knowledge of the cultivation conditions and pesticides applied. Specifications are set with suppliers covering cadmium, mercury, lead and arsenic, dioxins, mycotoxins, pesticides, and microbial contamination.25 A certificate of analysis of the raw material (eucalyptus leaves) showing compliance with specifications was provided.26 Analysis of impurities in the tincture is made on irregular basis and does not form part of the Hazard Analysis and Critical Control Points (HACCP) plan.
Stability
3.3.2
The shelf‐life of the tincture is declared by the applicant to be at least 36 months when stored in tightly closed containers under standard conditions. No evidence was provided to support this claim.
Conditions of use
3.3.3
The additive is intended for use in feed and in water for drinking for all animal species. The applicant proposes a maximum concentration of 50 mg eucalyptus tincture/kg complete feed for all animal species, except for horses, for which the proposed use level is 200 mg/kg complete feed. No use level has been proposed by the applicant for the use in water for drinking.
Safety
3.4
Eucalyptus leaves are toxic to most animals, except Koalas, which use the leaves as their only diet. The toxicity of eucalyptus leaves is due to a complex mixture of volatile and non‐volatile compounds, among which 1,8‐cineole and formylated phloroglucinols (Eschler et al., 2000) are the most toxic. The resistance of Koalas against the toxicity of eucalyptus leaves depends on a unique intestinal microflora and the ability to avoid the intake of eucalyptus leaves with high concentrations of toxic formylated phloroglucinol compounds (Moore & Foley, 2005; Littleford‐Colquhoun et al., 2022).
The safety assessment is based on the highest proposed use levels in feed, which are 50 mg eucalyptus tincture/kg complete feed for all animal species, except for horses, for which the proposed use level is 200 mg/kg complete feed.
No studies to support the safety for target animals, consumers or users were performed with the additive under assessment.
Eucalyptus tincture contains 1.9% (w/w) plant‐derived material, which includes ash, protein, lipids and carbohydrates (other than secondary metabolites), which are not of concern, and are not further considered.
The main identified individual components of eucalyptus tincture are 1,8‐cineole [03.001] (eucalyptol), a compound identified with the EU Flavour Information System (FLAVIS) number, and gallic acid [08.080]. 1,8‐Cineole and gallic acid have been assessed for use in feed and food by the FEEDAP Panel and the EFSA Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids (CEF), respectively (EFSA CEF Panel, 2011a, 2011b; EFSA FEEDAP Panel, 2012b, 2012c). In its assessment of aliphatic and alicyclic ethers (chemical group 16), the FEEDAP Panel concluded that 1,8‐cineole [03.001] was safe at the use level of 5 mg/kg complete feed for all animal species based on a no observed adverse effect level (NOAEL) of 562.5 mg/kg body weight (bw) per day from a 28‐day study in mice (EFSA FEEDAP Panel, 2012b). Subsequently, the FEEDAP Panel reviewed the toxicological dataset on 1,8‐cineole and identified a NOAEL of 100 mg/kg bw per day from a 50‐day study in rat where effects on body weight were observed starting at 500 mg/kg bw per day (EFSA FEEDAP Panel, 2021b). For gallic acid [08.080], a compound belonging to chemical group 23, the FEEDAP Panel concluded that the additive was safe at the maximum proposed use level of 25 mg/kg for all animal species, applying a NOAEL of 119 mg/kg bw per day identified from a 90‐day study in rat with gallic acid (Niho et al., 2001) based on effects on the liver and haematological changes27 observed at higher doses (EFSA FEEDAP Panel, 2012c). 1,8‐Cineole and gallic acid were considered safe for the consumer and the environment, whereas hazards for skin and eye contact and respiratory exposure were recognised for all compounds belonging to chemical groups 16 and 23. 1,8‐Cineole is currently authorised for use in feed for all animal species with a recommended maximum content of 5 mg/kg complete feed.28 Gallic acid is currently authorised for use in feed for all animal species (except fish) with a recommended maximum content of 25 mg/kg complete feed.29
Among the secondary plant metabolites present in the tincture, total phenolic compounds including flavonoids were quantified but not individually identified, with the exception of gallic acid and ellagic acid. Unidentified flavonoids will be evaluated at the level of the assessment group (see Section 3.4.2.2, flavonoids). These compounds are readily metabolised and excreted and are not expected to accumulate in animal tissues and products.
Besides phenolic acids and flavonoids (mainly quercetin derivatives according to PhEur Commentary, 2022), the phenolic fraction consists of mono‐ or diformylated adducts of acylphloroglucinols with terpenes, hydrolysable tannins, especially of the ellagitannin type, monoterpenoid galloyl‐glucose‐derivatives and condensed tannins (proanthocyanidins). As analytical data on the occurrence in the tincture of mono‐ or diformylated adducts of acylphloroglucinols with terpenes, which are considered of toxicological relevance, were not provided, their concentration in the tincture was estimated to be equal to the highest analysed concentration for total phenolic compounds (0.491%, w/w) (see Sections 3.3.1.1 and 3.4.2.2).
No (geno)toxicity data are available on mono‐ or diformylated adducts of acylphloroglucinols with terpenes and monoterpenoid galloyl‐glucose derivatives.
Trace concentrations of methyleugenol (1.10–1.21 mg/kg) were detected in all batches of the additive. For the absorption, distribution, metabolism and excretion (ADME) and the toxicology of methyleugenol reference is made to the safety evaluation made by the FEEDAP Panel in the EFSA opinion on laurel oil (EFSA FEEDAP Panel, 2023).
Genotoxicity and carcinogenicity of methyleugenol
3.4.1
Eucalyptus tincture contains trace amounts of methyleugenol, a compound with experimentally proven genotoxicity and carcinogenicity in rodents (as reviewed in IARC, 2018). The carcinogenicity of methyleugenol and other structurally related *p‐*allylalkoxybenzenes has been reviewed by the FEEDAP Panel in the opinion on olibanum extract (EFSA FEEDAP Panel, 2022).
The FEEDAP Panel identified a reference point for neoplastic endpoints derived from a carcinogenicity study in rat with methyleugenol (NTP, 2000) by applying the benchmark dose (BMD) approach with model averaging. Dose–response modelling using hepatocellular carcinomas in male rats as a response yielded a BMD lower confidence limit for a benchmark response of 10% (BMDL_10_) of 22.2 mg/kg bw per day (Suparmi et al., 2019).
Safety for the target species
3.4.2
Tolerance studies in the target species and/or toxicological studies in laboratory animals made with the tincture under application were not submitted.
In the absence of these data, the approach to the safety assessment of the mixture is based on its individual components (when individually identified and quantified) or groups of components. For 1,8‐cineole and gallic acid, subchronic studies are available, from which a NOAEL can be derived (EFSA FEEDAP Panel, 2012c, 2021b). For methyleugenol rodent carcinogenicity studies are available from which a BMDL_10_ can be derived (EFSA FEEDAP Panel, 2023b). For the group assessments of phenolic compounds and flavonoids, and for the mono‐ or diformylated adducts of acylphloroglucinols with terpenes, in the absence of data, the threshold of toxicological concern (TTC) was applied to derive maximum safe feed concentrations for the whole groups in the tincture (EFSA FEEDAP Panel, 2017b).
For the components, for which no concern for genotoxicity has been identified, the TTC values of Cramer structural Class I–III were assigned (EFSA FEEDAP Panel, 2017b).
For the components that have the potential to be genotoxic mutagens (EFSA FEEDAP Panel, 2021a; EFSA Scientific Committee, 2019c), i.e. mono‐ or diformylated adducts of acylphloroglucinols with terpenes, different TTC thresholds are applied for long‐living and reproductive animals (including those animals reared for laying/breeding/reproduction) and for short‐living animals. Short‐living animals are defined as those animals raised for fattening whose lifespan under farming conditions makes it very unlikely that they develop cancer as a result of the exposure to genotoxic and/or carcinogenic substances in the diet:
- For long‐living and reproductive animals, considering their long lifespan and the likelihood to develop cancer, the TTC value of 0.0025 μg/kg bw per day is applied. This value has been established for potential DNA‐reactive mutagens and/or carcinogens in human risk assessment (EFSA Scientific Committee, 2019c) and is considered applicable in this context.
- For short‐living animals (species for fattening), genotoxicity and carcinogenicity endpoints are not considered biologically relevant. Due to their short lifespan, cancer risk is not a relevant concern for short‐living animals under farming conditions (animals for fattening). For those animals, the TTC value for non‐genotoxic substances in Cramer Class III (1.5 μg/kg bw per day) is applied when comparing estimated exposures with the relevant thresholds established based on non‐neoplastic endpoints.
1,8‐Cineole
3.4.2.1
The feed concentrations of 1,8‐cineole calculated at the highest proposed use levels in complete feed and considering the highest analysed concentration of 1,8‐cineole (0.0036%, w/w) are reported in Table 3. Applying an UF of 100 to the NOAEL of 100 mg/kg bw per day identified from a 50‐day study in rat (EFSA FEEDAP Panel, 2021a), the safe concentrations of 1,8‐cineole in complete feed for the target species were calculated according to the FEEDAP Guidance on the safety of feed additives for the target species (EFSA FEEDAP Panel, 2017b). For cats an additional UF of 5 is applied, considering their unusually low capacity for glucuronidation of compounds (Court and Greenblatt, 1997; Lautz et al., 2021). The calculated safe concentrations of 1,8‐cineole in feed for the target species are shown in Table 3.
The calculated safe concentrations of 1,8‐cineole for the target species are several orders of magnitude higher than the concentrations in feed resulting from the use of eucalyptus tincture at the proposed use levels in feed. Therefore, the presence of 1,8‐cineole in eucalyptus tincture is not considered of concern for the target species.
Total phenolic compounds
3.4.2.2
Among the secondary metabolites, up to 0.491% are total phenolic compounds including gallic acid (0.303%), ellagic acid (0.018%) and flavonoids (0.032%).
Gallic acid
The feed concentrations of gallic acid calculated at the highest proposed use levels in complete feed and considering the highest analysed concentration of gallic acid (0.303%, w/w) are reported in Table 4. Applying an UF of 100 to the NOAEL of 119 mg/kg bw per day identified from a 90‐day study in rat with gallic acid (EFSA FEEDAP Panel, 2012c), the safe concentrations of gallic acid in complete feed for the target species were calculated according to the FEEDAP Guidance on the safety of feed additives for the target species (EFSA FEEDAP Panel, 2017b). As mentioned above, for cats an additional UF of 5 is applied, considering their unusually low capacity for glucuronidation of compounds (Court and Greenblatt, 1997; Lautz et al., 2021). The calculated safe concentrations of gallic acid in feed for the target species are shown in Table 4.
The calculated safe concentrations of gallic acid for the target species are at least two orders of magnitude higher than the concentrations in feed resulting from the use of eucalyptus tincture at the proposed use levels in feed. Therefore, the presence of gallic acid in eucalyptus tincture is not considered of concern for the target species.
Ellagic acid and flavonoids
Ellagic acid represents ≤ 0.018% of eucalyptus tincture and unidentified flavonoids (quantified as quercetin equivalents) account together for ≤ 0.032% of the tincture. The feed concentrations of ellagic acid and of flavonoids calculated at the highest proposed use levels in complete feed were compared to maximum acceptable concentration in feed for Cramer Class III (EFSA FEEDAP Panel, 2017b). The results are shown in Table 5.
The results shown in Table 5 indicate that the feed concentration of ellagic acid and flavonoids would be below the maximum acceptable feed concentration for Cramer Class III (EFSA FEEDAP Panel, 2017b). Therefore, no concern for the target species arises from ellagic acid and flavonoids in eucalyptus tincture.
Other phenolic compounds
The occurrence of other phenolic derivatives, such as mono‐ or diformylated adducts of acylphloroglucinols with terpenes, hydrolysable tannins, especially of the ellagitannin type, monoterpenoid galloyl‐glucose‐derivatives and condensed tannins (proanthocyanidins) has been described in literature for the leaves of E. globulus (see Section 3.3.1). Analytical data on the occurrence of these phenolic compounds and especially of the mono‐ or diformylated adducts of acylphloroglucinols with terpenes, which are considered of toxicological relevance, were not provided for the additive. In the absence of data, the present assessment is based on the assumption that the highest analysed concentration for total phenolic compounds of 0.491% (w/w) is the estimated maximum value for mono‐ or diformylated adducts of acylphloroglucinols with terpenes in the additive.
The highest feed concentration and the highest estimated intake of mono‐ or diformylated adducts of acylphloroglucinols with terpenes for long‐living and reproductive animals and for target species for fattening are reported in Table 6.
Long‐living and reproductive animals
For long‐living and reproductive animals, the estimated highest intake of mono‐ or diformylated adducts of acylphloroglucinols with terpenes ranges from 1.3 μg/kg bw per day in ornamental fish to 22.3 μg/kg bw per day in horses. These intake levels are several orders of magnitude higher than the TTC value of 0.0025 μg/kg bw per day established for potential DNA reactive mutagens and/or carcinogens in human risk assessment (EFSA Scientific Committee, 2019c).
For long‐living animals, the TTC value is exceeded, and generation of further data would be required. In the absence of analytical data on the occurrence of mono‐ or diformylated adducts of acylphloroglucinols with terpenes in the tincture and in the absence of toxicity data, no conclusion can be drawn on the use of eucalyptus tincture for long‐living and reproductive animals.
Short‐living animals (species for fattening)
For short‐living animals, the TTC based on non‐cancer endpoints has been applied. For these species, the estimated highest intake of mono‐ or diformylated adducts of acylphloroglucinols with terpenes ranges from 4.9 μg/kg bw per day in salmonids to 22.3 μg/kg bw per day in horses for meat production. These intake levels are 3‐ to 15‐fold higher than the TTC value for Cramer class III compounds (1.5 μg/kg bw per day).
Therefore, a reduction of the use levels of eucalyptus tincture in feed would be needed to ensure that the maximum acceptable concentrations in feed established based on the application of the TTC for Cramer class III compounds are not exceeded. This would correspond to the following concentrations in complete feed: 4 mg/kg for chickens for fattening, 5 mg/kg for turkeys for fattening, 6 mg/kg for piglets and rabbits for meat production, 7 mg/kg for pigs for fattening, 16 mg/kg for veal calves, 14 mg/kg for cattle for fattening, sheep/goats and horses for meat production and 15 mg/kg for salmonids. These levels are extrapolated to physiologically related minor species.
Methyleugenol
3.4.2.3
Trace concentrations of methyleugenol (≤ 0.00012%) were detected in all five batches of the additive.
Methyleugenol belongs to the group of p‐allylalkoxybenzenes and is a genotoxic carcinogen. For this kind of compounds, different reference points and a different magnitude of the margin of exposure (MOE) would be applied for long‐living and reproductive animals (including those animals reared for laying/breeding/reproduction) and for short‐living animals (animal for fattening).
In the current assessment, considering the very low concentrations of methyleugenol in feed resulting from the use of eucalyptus tincture at the proposed use levels, the FEEDAP Panel did not consider it necessary to distinguish between long‐living and reproductive animals and short‐living animals.
For all animals, an MOE with a magnitude > 10,000 when comparing estimated exposure to genotoxic and/or carcinogenic substances with a BMDL_10_ from a rodent carcinogenicity study is considered indicative of low concern. The FEEDAP Panel identified the BMDL_10_ of 22.2 mg/kg bw per day derived from rodent carcinogenicity studies with methyleugenol (NTP, 2000; Suparmi et al., 2019), as the reference point for the entire group of p‐allylalkoxybenzenes (EFSA FEEDAP Panel, 2022). In the current assessment this reference point is applied to assess the exposure of all animal species to methyleugenol.
At the maximum proposed use level of 50 mg tincture/kg complete feed, the highest concentration of methyleugenol in the additive (≤ 0.00012%) would lead to a concentration of 0.06 μg/kg complete feed (0.24 μg/kg for horses at the use level of 200 mg tincture/kg complete feed).
The methyleugenol intake calculated for the target species at the maximum proposed use level in feed (200 mg/kg complete feed for horses and 50 mg/kg complete feed for the other species) and the margin of exposure (MOE) are reported in Table 7.
When the estimated exposures for the different animal categories are compared to the BMDL_10_ of 22.2 mg/kg bw per day (Suparmi et al., 2019) calculated from rodent carcinogenicity studies with methyleugenol (NTP, 2000, see Section 3.3.2), a MOE of at least 4,036,364 is calculated. The magnitude of this MOE indicates that the presence of methyleugenol in eucalyptus tincture is very unlikely to be of safety concern for the target species.
Use in water for drinking
3.4.2.4
The FEEDAP Panel considers that the use in water for drinking alone or in combination with use in feed should not exceed the daily amount that is considered of no concern when consumed via feed alone.
Conclusions on safety for the target species
3.4.2.5
In the absence of analytical data on the occurrence of mono‐ or diformylated adducts of acylphloroglucinols with terpenes in the tincture and in the absence of toxicity data, no conclusion can be drawn on the use of eucalyptus tincture for long‐living and reproductive animals.
The additive under assessment, eucalyptus tincture, is considered of no concern for short‐living animals (species for fattening) at the following concentrations in complete feed: 5 mg/kg for turkeys for fattening, 4 mg/kg for chickens for fattening and other poultry for fattening, 7 mg/kg for pigs for fattening, 6 mg/kg for piglets and other Suidae for meat production, 16 mg/kg for veal calves (milk replacer), 14 mg/kg for sheep/goats for meat production, cattle for fattening and other ruminants for fattening and camelids at the same physiological stage, horses and other Equidae for meat production, 6 mg/kg for rabbits for meat production, and 15 mg/kg for salmonids and minor fin fish.
The FEEDAP Panel considers that the use in water for drinking alone or in combination with use in feed should not exceed the daily amount that is considered of no concern when consumed via feed alone.
Safety for the consumer
3.4.3
Preparations of eucalyptus leaves including tinctures and fluid extracts are added to food for flavouring purposes according to Fenaroli's handbook of flavour ingredients (Burdock, 2009), without intake figures being cited.
No data on residues in products of animal origin were made available for any of the constituents of the tincture. When considering the ADME of the individual components, for 1,8‐cineole and gallic acid, the available data indicate that they are absorbed, metabolised and rapidly excreted and are not expected to accumulate in animal tissues and products (EFSA FEEDAP Panel, 2012a, 2012b). Similarly, the phenolic compounds will either not be absorbed (condensed tannins with a high degree of polymerisation), or poorly absorbed and rapidly metabolised (quercetin, the main flavonoid) or be readily metabolised and excreted and are not expected to accumulate in animal tissues and products (phenolic acids). Equally methyleugenol, occurring in the additive at trace concentrations, is not expected to accumulate in animal tissues and products (see Section 3.3.1).
Considering the above and the known human exposure due to the use of preparations of eucalyptus leaves to flavour food (Burdock, 2009), it is unlikely that consumption of products from animals given eucalyptus tincture at the proposed maximum use level would significantly increase human background exposure.
No safety concern would be expected for the consumer from the use of eucalyptus tincture up to the highest safe use level in feed.
Safety for the user
3.4.4
No specific data were provided by the applicant regarding the safety of the additive for users.
The applicant provided information according to Classification, Labelling and Packaging (CLP) Regulation (EC) 1272/200830 concerning the presence of ethanol in the tincture.31
The additive contains 1,8‐cineole and gallic acid, two compounds for which hazards for skin and eye contact and respiratory exposure were recognised (EFSA FEEDAP Panel, 2012a, 2012b).
The additive under assessment should be considered as irritant to skin and eyes, and as a dermal and respiratory sensitiser.
When handling the tincture, exposure of unprotected users to methyleugenol may occur. Therefore, to reduce the risk, the exposure of the users should be minimised.
Safety for the environment
3.4.5
Although E. globulus is not native to Europe, the blue gum is among the most extensively planted eucalypts because of its uses and its adaptability to a range of climatic conditions. It is particularly suited to areas with a Mediterranean climate and so is found widely distributed in southern parts of Europe. In addition, the most abundant components in the tincture, i.e. 1,8‐cineole and phenolic compounds including gallic acid and flavonoids, are naturally occurring in European plants. Therefore, the use of the tincture under the proposed conditions of use in animal feed is not expected to pose a risk to the environment.
Efficacy
3.5
The leaves of E. globulus and their preparations are used to flavour food according to Fenaroli's Handbook of Flavour Ingredients (Burdock, 2009).
Since eucalyptus leaves and their preparations are recognised to flavour food and their function in feed would be essentially the same as that in food, no further demonstration of efficacy is considered necessary.
CONCLUSIONS
4
Eucalyptus tincture from Eucalyptus globulus Labill. may be produced from plants of different origins and by various processes resulting in preparations with different composition and toxicological profiles. Thus, the following conclusions apply only to eucalyptus tincture which contains ≤ 1.2 mg/kg (0.00012%) methyleugenol and is produced by ethanol/water extraction from the leaves of the plant.
In the absence of analytical data on the occurrence of mono‐ or diformylated adducts of acylphloroglucinols with terpenes in the tincture and in the absence of toxicity data, no conclusion can be drawn on the use of eucalyptus tincture for long‐living and reproductive animals.
For short‐living animals (species for fattening), the FEEDAP Panel concludes that the additive is considered of no concern at the following concentrations in complete feed: 5 mg/kg for turkeys for fattening, 4 mg/kg for chickens for fattening and other poultry for fattening, 7 mg/kg for pigs for fattening, 6 mg/kg for piglets and other Suidae for meat production, 16 mg/kg for veal calves (milk replacer), 14 mg/kg for sheep/goats for meat production, cattle for fattening and other ruminants for fattening and camelids at the same physiological stage, horses and other Equidae for meat production, 6 mg/kg for rabbits for meat production, and 15 mg/kg for salmonids and minor fin fish. The FEEDAP Panel considers that the use in water for drinking alone or in combination with use in feed should not exceed the daily amount that is considered of no concern when consumed via feed alone.
No safety concern would arise for the consumer from the use of eucalyptus tincture in animal nutrition up to the levels in feeds considered of no concern.
The additive under assessment should be considered as irritant to skin and eyes, and as a skin and respiratory sensitiser. When handling the additive, exposure of unprotected users to methyleugenol may occur. Therefore, to reduce the risk, the exposure of the users should be minimised.
The use of eucalyptus tincture at the maximum proposed use level is not considered to be a risk to the environment.
Since the leaves of E. globulus and their preparations are recognised to flavour food and their function in feed would be essentially the same as that in food, no further demonstration of efficacy is considered necessary for the tincture under assessment.
RECOMMENDATION
5
The specification should ensure that the concentration of methyleugenol should be as low as possible and should not exceed 1.2 mg/kg eucalyptus tincture, corresponding to 0.00012%.
DOCUMENTATION PROVIDED TO EFSA/CHRONOLOGY
6
DateEventDossier received by EFSA. Botanically defined flavourings from Botanical Group 07 – Geraniales, Myrtales, Poales for all animal species and categories. Submitted by Feed Flavourings Authorisation Consortium European Economic Interest Grouping (FFAC EEIG) 09/11/2010 Reception mandate from the European Commission 22/03/2011 Comments received from Member States 08/04/2011 Request of supplementary information to the applicant in line with Article 8(1)(2) of Regulation (EC) No 1831/2003 – Scientific assessment suspended. Issues: analytical methods
08/01/2013 Reception of supplementary information from the applicant 26/02/2013 EFSA informed the applicant (EFSA ref. 7150727) that, in view of the workload, the evaluation of applications on feed flavourings would be re‐organised by giving priority to the assessment of the chemically defined feed flavourings, as agreed with the European Commission 20/01/2014 Reception of the Evaluation report of the European Union Reference Laboratory for Feed Additives 24/06/2015 Technical hearing during risk assessment with the applicant according to the “EFSA's Catalogue of support initiatives during the life‐cycle of applications for regulated products”: data requirement for the risk assessment of botanicals 17/06/2016 Technical hearing during risk assessment with the applicant according to the “EFSA's Catalogue of support initiatives during the life‐cycle of applications for regulated products”. Discussion on the ongoing work regarding the pilot dossiers BDG08 and BDG 09 27/04/2017 Trilateral meeting organised by the European Commission with EFSA and the applicant FEFANA on the assessment of botanical flavourings: characterisation, substances of toxicological concern present in the botanical extracts, feedback on the pilot dossiers 27/02/2019 Partial withdrawal by applicant (EC was informed) for the following additives: broom teatree oil, geranium oil, bay oil and vetiveria oil 12/12/2019 EFSA informed the applicant that the evaluation process restarted 02/03/2020 Request of supplementary information to the applicant in line with Article 8(1)(2) of Regulation (EC) No 1831/2003 – Scientific assessment suspended. Issues: characterization, safety for the target species, safety for the consumer, safety for the user, safety for the environment
30/09/2022 Reception of supplementary information from the applicant (partial dataset on eucalyptus tincture) ‐ Scientific assessment remains suspended 18/11/2022 Partial withdrawal by applicant (EC was informed) for the following additives: bambusa tincture and allspice oil 17/02/2023 Request of supplementary information to the applicant in line with Article 8(1)(2) of Regulation (EC) No 1831/2003 – Scientific assessment suspended. Issues: characterization 11/05/2023 Reception of supplementary information from the applicant (partial dataset on clove tincture) ‐ Scientific assessment remains suspended 06/06/2023
Reception of an amendment of the Evaluation report of the European Union Reference Laboratory for Feed Additives related to geranium rose oil, eucalyptus oil, lemongrass oil and clove oil
01/03/2024 Reception of an amendment of the Evaluation report of the European Union Reference Laboratory for Feed Additives related to citronella oil, melaleuca oil, tea tree oil, eucalyptus tincture, clove tincture 26/03/2024 The application was split and a new EFSA‐Q‐2024‐00192 was assigned to the additive included in the present assessment. Scientific assessment re‐started 18/14/2024 Opinion adopted by the FEEDAP Panel on eucalyptus tincture (EFSA‐Q‐2024‐00192). End of the Scientific assessment for the additive included in the present assessment. The assessment of other additives in BGD 07 is still ongoing
ABBREVIATIONSADMEabsorption, distribution, metabolism and excretionBDGbotanically defined groupBMDbenchmark doseBMDL_10_ benchmark dose (BMD) lower confidence limit for a benchmark response of 10%bwbody weightCASChemical Abstracts ServiceCEFEFSA Panel on Food Contact Materials, Enzymes, Flavourings and Processing AidsCLPClassification, Labelling and PackagingDMdry matterEEIGEuropean economic interest groupingEMAEuropean Medicines AgencyEURLEuropean Union Reference LaboratoryFEMAFlavour and Extract Manufactures AssociationFEEDAPEFSA Scientific Panel on Additives and Products or Substances used in Animal FeedFFACFeed Flavourings authorisation Consortium of FEFANA (EU Association of Specialty Feed Ingredients and their Mixtures)FLAVISThe EU Flavour Information SystemJECFAJoint FAO/WHO Expert Committee of Food AdditivesGAEgallic acid equivalentGC‐FIDgas chromatography‐flame ionisation detectorHACCPHazard Analysis and Critical Control PointsHPLChigh‐performance liquid chromatographyHPTLChigh‐performance thin‐layer chromatographyLODlimit of detectionMOEmargin of exposureNOAELno observed adverse effect levelPhEurEuropean PharmacopoieaSCEFSA Scientific CommitteeTTCthreshold of toxicological concernWHOWorld Health Organization
CONFLICT OF INTEREST
If you wish to access the declaration of interests of any expert contributing to an EFSA scientific assessment, please contact [email protected].
REQUESTOR
European Commission
QUESTION NUMBER
EFSA‐Q‐2010‐01282 New EFSA‐Q‐2024‐00192
COPYRIGHT FOR NON‐EFSA CONTENT
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PANEL MEMBERS
Vasileios Bampidis, Giovanna Azimonti, Maria de Lourdes Bastos, Henrik Christensen, Birgit Dusemund, Mojca Fašmon Durjava, Maryline Kouba, Marta López‐Alonso, Secundino López Puente, Francesca Marcon, Baltasar Mayo, Alena Pechová, Mariana Petkova, Fernando Ramos, Roberto Edoardo Villa, and Ruud Woutersen.
LEGAL NOTICE
Relevant information or parts of this scientific output have been blackened in accordance with the confidentiality requests formulated by the applicant pending a decision thereon by the European Commission. The full output has been shared with the European Commission, EU Member States and the applicant. The blackening will be subject to review once the decision on the confidentiality requests is adopted by the European Commission.
The reference list from the paper itself. Each links out to its DOI / PubMed record.
- 1Burdock, G. A. (2009). Fenaroli's handbook of flavor ingredients (6th ed., pp. 678–679). CRC Press, Taylor & Francis Group. 10.1201/9781439847503 · doi ↗
- 2Court, M. H. , & Greenblatt, D. J. (1997). Molecular basis for deficient acetaminophen glucuronidation in cats. An interspecies comparison of enzyme kinetics in liver microsomes. Biochemical Pharmacology, 53, 1041–1047. 10.1016/s 0006-2952(97)00072-5 9174118 · doi ↗ · pubmed ↗
- 3EFSA (European Food Safety Authority) . (2005). Opinion of the Scientific Committee on a request from EFSA related to a harmonised approach for risk assessment of substances which are both genotoxic and carcinogenic. EFSA Journal, 3(10), 282. 10.2903/j.efsa.2005.282 · doi ↗
- 4EFSA (European Food Safety Authority) . (2012). Compendium of botanicals reported to contain naturally occurring substances of possible concern for human health when used in food and food supplements. EFSA Journal, 10(5), 2663. 10.2903/j.efsa.2012.2663 · doi ↗
- 5EFSA CEF Panel (EFSA Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids) . (2011 a). Scientific Opinion on Flavouring Group Evaluation 59, Revision 1 (FGE.59Rev 1): Consideration of aliphatic and aromatic ethers evaluated by JECFA (61st meeting and 63rd meeting) structurally related to aliphatic, alicyclic and aromatic ethers including anisole derivatives evaluated by EFSA in FGE.23 Rev 2 (2010). EFSA Journal, 9(5), 2158. 10.2903/j.efsa.2011.2158 · doi ↗
- 6EFSA CEF Panel (EFSA Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids) . (2011 b). Scientific Opinion on Flavouring Group Evaluation 20, Revision 3 (FGE.20Rev 3): Benzyl alcohols, benzaldehydes, a related acetal, benzoic acids, and related esters from chemical groups 23 and 30. EFSA Journal, 9(7), 2176. 10.2903/j.efsa.2011.2176 · doi ↗
- 7EFSA FEEDAP Panel (EFSA Panel on Additives and Products or Substances used in Animal Feed) . (2012 a). Guidance for the preparation of dossiers for sensory additives. EFSA Journal, 10(1), 2534. 10.2903/j.efsa.2012.2534 · doi ↗
- 8EFSA FEEDAP Panel (EFSA Panel on Additives and Products or Substances used in Animal Feed) . (2012 b). Scientific Opinion on the safety and efficacy of aliphatic and alicyclic ethers (chemical group 16) when used as flavourings for all animal species. EFSA Journal, 10(11), 2967. 10.2903/j.efsa.2012.2967 · doi ↗
