Affiliation:
1. Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China
2. College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, China
3. Key Laboratory of Freshwater Crustacean Genetic Breeding and Cultivation (Co-Construction by Ministry and Province) Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Institute of Jiangsu Province, Nanjing 210017, China
Abstract
In this study, we investigated the body characteristics, carotenoid composition, and nutritional quality of Eriocheir sinensis with different hepatopancreas redness (a*). We distributed the crabs into two groups based on the hepatopancreas a* values and compared their body characteristics, chroma, carotenoid composition, and protein, lipid, total sugar, amino acid, and fatty acid content via paired t-test. The results revealed that the relationships between hepatopancreas a* values and crab quality are sex specific. In female crabs, the differences in nutritional characteristics were evident mainly in the hepatopancreases and ovaries. In the redder hepatopancreases, the content of zeaxanthin and β-carotene increased, and the levels of C22:6n3 and C20:5n3 decreased (p < 0.05). In the ovaries, the content of astaxanthin, canthaxanthin, β-carotene, umami, and sweet amino acids were lower in the redder hepatopancreas crabs (p < 0.05). In male crabs, there were positive relationships between hepatopancreas a* and amino acid and fatty acid content. The content of leucine, arginine, and total umami amino acids in muscles and of unsaturated fatty acids and n-6 polyunsaturated fatty acids in hepatopancreases and testicles increased with increasing hepatopancreas a* values (p < 0.05). Therefore, the redder the hepatopancreas, the higher the nutritional quality of male crabs.
Funder
earmarked fund for Jiangsu Agricultural Industry Technology System
Open project of the Key Laboratory of Genetic Breeding and Breeding of freshwater shrimp and crab, Ministry of Agriculture and Rural Areas
Central Public-interest Scientific Institution Basal Research Fund, CAFS
Reference50 articles.
1. Czerniejewski, P., Bienkiewicz, G., and Tokarczyk, G. (2023). Nutritional quality and fatty acids composition of invasive Chinese mitten crab from Odra Estuary (Baltic Basin). Foods, 12.
2. FAO (2022). The State of World Fisheries and Aquaculture 2022, FAO. Towards Blue Transformation.
3. Bureau of Fisheries and Fishery Management, Ministry of Agriculture and Rural Affairs of China (2023). 2022 China Fisheries Statistical Yearbook.
4. Non-volatile taste active compounds in the meat of Chinese mitten crab (Eriocheir sinensis);Chen;Food Chem.,2007
5. Compositional characteristics and nutritional quality of Chinese mitten crab (Eriocheir sinensis);Chen;Food Chem.,2007