WANG Xiao1,2, HAN Gang1, ZHANG Xiao-jun3, MEI Guang-ming3, MU Ying-chun1*, SONG Jin-long1, GUO Ya-nan1,2, MENG Di1, YANG Zhen1
1.Key Laboratory of Control of Quality and Safety for Aquatic Products,Ministry of Agriculture and Rural Affairs, Chinese Academy of Fishery Sciences, Beijing 100141, China; 2.College of Food, Shanghai Ocean University, Shanghai 201306, China; 3.Marine Fisheries Research Institute of Zhejiang, Zhoushan 316021, China
Abstract: Approximate compositions, minerals, fatty acids, amino acids, nucleotides, and cholesterol were analyzed in muscle and testis of male Chinese mitten handed crab Eriocheirsinensis from different waters including Gucheng Lake of the Yangtze River, Yangcheng Lake, Liaohe River(estuary) and the Yellow River(middle and upper reaches) by biochemical analysis to evaluate nutrition quality of male Chinese mitten handed crab from different waters. It was found that there were significant differences in the composition of trace elements, amino acids and cholesterol in Chinese mitten handed crab from Gucheng Lake, Yangcheng Lake, Liaohe River(estuary) and the Yellow River(middle and upper reaches). There was significantly higher content (284.3 mg/kg)of iron in the testis in male crabs from Liaohe waters than that in the crab from the other waters(P<0.05), with significantly higher content(63.5 mg/kg) of zinc in the edible part of male crab from Gucheng Lake than that in the crabs from the other waters(P<0.05). The male crab from Gucheng Lake had significantly higher polyunsaturated fatty acid content in edible parts than that the crabs from the other waters did(P<0.05), with significantly higher amino acid contents (taste amino acids, essential amino acids and total amino acids) in the crabs from Gucheng Lake and Yangcheng Lake than those in the crabs from Liaohe and Yellow River(P<0.05). In addition, the contents of inosinic acid in testis of the crab from Liaohe River were more abundant, indicating that the nutrient compositions in the edible parts were varied with the sources of Chinese mitten handed crab. The findings provide support with data for the quality standards and identification indicators of Chinese mitten handed crab.
2019, Vol. 34 
