Comparison of non-volatile compounds and sensory characteristics of Chinese mitten crabs (Eriocheir sinensis) reared in lakes and ponds: Potential environmental factors
Comparison of non-volatile compounds and sensory characteristics of Chinese mitten crabs (Eriocheir sinensis) reared in lakes and ponds: Potential environmental factors
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湖泊和池塘养殖中华绒螯蟹（Eriocheir sinensis）非挥发性化合物和感官特性的比较：潜在的环境因素
DOI：
10.1016/j.aquaculture.2012.08.008
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发表时间：
2012-10-05
期刊：
影响因子：
4.5
通讯作者：
Song, Lin
中科院分区：
文献类型：
--
作者：
Kong, Li;Cai, Chunfang;Song, Lin
为揭示养殖条件对中华绒螯蟹品质的影响，对池塘养殖的中华绒螯蟹和湖泊养殖的中华绒螯蟹的非挥发性成分和感官特性进行了比较，同时分析了潜在的环境因素。两组螃蟹的养殖方式相似，在周期的大部分时间里，沉水植物都茂盛生长。结果表明，池塘产蟹的肝胰腺和肌肉中总游离氨基酸（FAA）、鲜味5'-核苷酸化合物和多不饱和脂肪酸的浓度显着低于湖产蟹。池塘产蟹的甲壳和肝胰腺中类胡萝卜素浓度显着低于湖产蟹。通过感官评价，在贝壳颜色、肝胰腺颜色以及对肝胰腺的味道和偏好方面也观察到显着差异。然而，没有检测到肌肉味道的差异。两组螃蟹的肌肉或肝胰腺均未检测到令人不快的气味或味道。与湖水相比，池塘水中的叶绿素-a 浓度明显较低，DO 和 pH 值较高，微藻生物多样性较差；然而，总氮和总磷的浓度没有检测到差异。据推测，池塘中微藻生物多样性低和大型植物繁盛直接或间接导致了中华绒螯蟹颜色和味道的淡化。 (C) 2012 Elsevier B.V. 保留所有权利。
To reveal the impact of culture condition on the quality of Chinese mitten crabs (Eriocheir sinensis), a study was conducted comparing pond-produced crabs and lake-produced crabs in terms of non-volatile compounds and sensory characteristics, and potential environmental factors were analyzed concurrently. Both groups of crabs were cultured in a similar way, with submerged macrophytes flourishing during most of the cycle. The results showed that the concentrations of total free amino acids (FAAs), umami 5'-nucleotide compounds and poly-unsaturated fatty acids in the hepatopancreas and muscle of pond-produced crab were significantly lower than those of lake-produced crabs. The carotenoid concentrations in the shell and hepatopancreas of pond-produced crabs were significantly lower than those of lake-produced crabs. Significant differences were also observed in terms of shell color, hepatopancreas color and the taste of and preference for the hepatopancreas through sensory evaluation. However, no difference was detected in the taste of muscle. No unpleasant odors or tastes were detected in the muscle or hepatopancreas in either group of crabs. A significantly lower concentration of chlorophyll-a, higher DO and pH values, and poorer biodiversity of microalgae were observed in the pond water compared with lake water; however, no difference in the concentrations of total nitrogen and total phosphorus were detected. It is speculated that the low biodiversity of microalgae and flourishing macrophytes in the ponds contributed directly or indirectly to the faint color as well as the flavor of Chinese mitten crab. (C) 2012 Elsevier B.V. All rights reserved.