摘要
采用电子舌对产自阳澄湖、松江、崇明的不同等级雌性中华绒螯蟹各可食部位的滋味轮廓进行检测。运用主成分分析法处理电子舌测定数据后发现,特级、1级、2级阳澄湖中华绒螯蟹体肉、钳肉、足肉、性腺4个部位滋味轮廓区分显著。采用软独立建模的方法,分别建立了基于单部位及联合多部位的阳澄湖中华绒螯蟹产地鉴别模型,无论是单部位还是多部位模型,对非阳澄湖蟹样的拒绝率均为100%。采用偏最小二乘-判别分析法建立了中华绒螯蟹的等级评定模型,特级、1级、2级蟹样的偏最小二乘-判别分析模型相关系数均在0.90以上,采用上述模型可100%正确识别16个未知蟹样的等级。
Electronic tongue(E-tongue) technology was applied in this study to detect the taste profiles of the abdomen, claw, leg meat and gonad part of female Eriocheir sinensis farmed in Yangcheng Lake, Songjiang and Chongming regions from different quality grades. The principal component analysis(PCA) of E-tongue data showed that the taste profiles of four edible parts of Yangcheng-Lake crabs in three grades(premium, first and second) could be distinguished well. Soft independent modeling of class analogy(SIMCA) method was applied to establish the habitat identification models of Yangcheng-Lake crabs based either on one single part or on multiple parts with a rejection ratio of 100% for nonYangcheng-Lake crabs. In addition, partial least squares-discriminant analysis(PLS-DA) was also used in this study to build three grade evaluation models for Eriocheir sinensis of different grades. The correlation coefficients of the PLS-DA models were all more than 0.90. Also, based on the PLS-DA models, the grades of 16 unknown crab samples could be correctly identified with 100% accuracy.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2015年第4期141-146,共6页
Food Science
基金
上海市中华绒螯蟹产业技术体系建设项目(D-8003-10-0208)
上海市科委工程中心建设项目(11DZ2280300)
上海市教委重点学科建设项目(J50704)
上海高校青年教师培养资助计划项目(B-5409-12-0023)
上海海洋大学优秀研究生论文培育计划项目(B-9600-10-0003-3)
关键词
中华绒螯蟹
滋味
产地鉴别
等级评定
电子舌
Chinese mitten crab(Eriocheir sinensis)
taste
habitat identification
grade evaluation
electronic tongue
