# Nutritional and Functional Enhancement of Chinese Steamed Bread Through Incorporation of Acheta domesticus and Antheraea pernyi Pupae Powders

## TL;DR

This study shows that adding insect powders to Chinese steamed bread improves its nutrition, flavor, and health benefits.

## Contribution

The novel use of Acheta domesticus and Antheraea pernyi pupae powders to enhance Chinese steamed bread's nutritional and functional properties.

## Key findings

- Insect-fortified bread had lower glycemic index and higher antioxidant activity.
- Incorporating insect powders improved flavor and texture of the bread.
- The bread showed increased protein, fat, and mineral content.

## Abstract

The study intended to assess the impacts of partially replacing wheat flour with Acheta domesticus powder (AD) and Antheraea pernyi pupae powder (AP) at 5%, 10%, and 15% levels on the proximate composition, color properties, texture profile, antioxidant capacity, starch digestibility, and flavor characteristics of Chinese steamed bread (CSB). The addition of AP and AD notably increased the levels of protein, fat, and ash and also led to an elevated chewiness and hardness. Most importantly, compared to the control, AP- and AD-fortified CSB exhibited a significantly low estimated glycemic index (eGI) and high total phenolic and flavonoid contents, resulting in improved DPPH and ABTS radical scavenging activities. Furthermore, E-nose, E-tongue, and GC-MS analysis revealed that incorporation of AP and AD strengthened umami and saltiness and enriched the flavor profile of CSB. Our findings indicate that AD- and AP-fortified CSB is a promising functional food with a lower eGI, as well as improved nutritional value and antioxidant potential, offering a sustainable strategy for staple food innovation while also providing guidance for consumers to select wheat flour fortified with different types and levels of insect powder to prepare CSB based on their preferences.