# Fatty Acid Profiles of Raw and Cooked Meat Obtained from the Barents Sea Red King Crab

## TL;DR

This study compares the fatty acid content of raw and cooked red king crab meat from the Barents Sea, finding that females have higher levels and cooking improves nutritional value.

## Contribution

The study is the first to compare raw and cooked fatty acid profiles of red king crab meat while analyzing sex-specific differences and nutritional indices.

## Key findings

- Female red king crabs have higher fatty acid levels than males, likely due to physiological differences.
- Cooking improves fatty acid content in male crab meat more significantly than in females.
- Red king crab meat has a favorable polyunsaturated to saturated fatty acid ratio compared to other crab species.

## Abstract

This study explores the fatty acid composition of red king crab meat from the Barents Sea. Male crabs exhibit lower fatty acid levels than females, likely due to physiological, behavioral, or activity-related factors. Cooking impacts the meat differently depending on crab sex, with males showing a significant improvement in fatty acid content after cooking, and females displaying less pronounced but still significant changes. These variations may be due to differences in tissue structure between sexes. Although overall fatty acid levels in red king crab meat are lower than in other crabs, the product generally maintains a more balanced ratio of polyunsaturated fatty acids to saturated fatty acids, resulting in favorable nutritional indices. Consequently, red king crab meat emerges as a highly nutritious option suitable for a healthy diet.

Previous studies have reported the fatty acid composition of red king crab (Paralithodes camtschaticus) meat; however, no comparative analyses have simultaneously investigated raw (RM) and cooked meat (CM). This study addresses this gap by employing gas–liquid chromatography to analyze the fatty acid profiles of RM and CM from red king crabs from the coastal Barents Sea, Russia. Both products exhibited significant sex-specific differences, with females containing higher levels of fatty acids in their meat than males. Furthermore, males displayed greater dissimilarity between RM and CM compared to females. While nutritional indices were comparable between male and female RM and CM, the cooking process resulted in improved nutritional indices in CM relative to RM. Moreover, the red king crab meat exhibited superior nutritional indices compared to those reported for other, primarily southern, crab species, reflecting a higher polyunsaturated to saturated fatty acid ratio in both RM and CM. Comparisons with the existing literature revealed variability in red king crab meat fatty acid levels across geographical locations and years, suggesting that spatial variations in diet and temporal fluctuations in feeding habits may influence meat quality. Our findings confirm the high nutritional value of red king crab meat, a finding of relevance to both scientific and consumer audiences.