Gao Weifeng, Yuan Ye, Huang Zhi, Chen Yongyi, Cui Wenxiao, Zhang Yin, Saqib Hafiz Sohaib Ahmed, Ye Shaopan, Li Shengkang, Zheng Huaiping, Zhang Yueling, Ikhwanuddin Mhd, Ma Hongyu
Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China.
STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou 515063, China.
Foods. 2023 Jan 29;12(3):583. doi: 10.3390/foods12030583.
Soft-shell crabs have attracted consumers' attention due to their unique taste and nutritional value. To evaluate the feasibility of harvest optimisation of soft-shell mud crabs, the proximate composition, mineral composition, and total carotenoid, amino acid, and fatty acid contents of edible parts of male and female soft-shell mud crabs at different moulting stages were determined and compared from a nutritional value perspective. The results showed that the sex and moulting stages could significantly affect the nutritional values of the edible portions of soft-shell crabs. The female or male soft-shell crabs in the postmoult Ⅰ stage had a much richer mineral element content than that in other moulting stages. The total carotenoid content in female soft-shell crabs was significantly higher than that in male crabs in all moulting stages, while male soft-shell crabs had better performance in amino acid nutrition than female soft-shell crabs. Moreover, it was found that soft-shell crabs in the postmoult Ⅱ stage had significantly higher contents of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), while significantly lower contents of saturated fatty acids (SFA) than those in other stages. The present study will provide a reference basis for the diversified cultivation of soft-shell crabs, and further promote the development of the mud crab industry.
软壳蟹因其独特的口感和营养价值而吸引了消费者的关注。为了评估软壳青蟹收获优化的可行性，从营养价值角度测定并比较了不同蜕壳阶段的雌雄软壳青蟹可食用部分的近似成分、矿物质成分以及总类胡萝卜素、氨基酸和脂肪酸含量。结果表明，性别和蜕壳阶段会显著影响软壳蟹可食用部分的营养价值。蜕壳Ⅰ期的雌蟹或雄蟹的矿物质元素含量比其他蜕壳阶段丰富得多。在所有蜕壳阶段，雌蟹的总类胡萝卜素含量均显著高于雄蟹，而雄蟹在氨基酸营养方面表现优于雌蟹。此外，还发现蜕壳Ⅱ期的软壳蟹二十碳五烯酸（EPA）和二十二碳六烯酸（DHA）含量显著高于其他阶段，而饱和脂肪酸（SFA）含量则显著低于其他阶段。本研究将为软壳蟹的多元化养殖提供参考依据，并进一步推动青蟹产业的发展。
