中国水产科学Issue(2)：434-441,8.DOI:10.3724/SP.J.1118.2013.00434
中华绒螯蟹性腺香气品质评价方法
Evaluation of aroma-quality Chinese mitten-handed crab (Eriocheir sinensis) gonad
摘要
Abstract
HS-SPME-GC-MS technology was applied to identify the aroma compounds from the gonad of special, first and second grades of both male and female Chinese mitten-handed crabs cultured in Yangcheng Lake. Fifty-eight volatiles, which can be divided into eight classes, were identified from six kinds of crab samples and further quantitated based on internal standard analysis. The concentrations of eight classes of volatiles were stan-dardized first and then principal component analysis (PCA) analyzed the standard data. Comprehensive scores (also called S-scores), which were calculated from each principal component value and its variance contribution, were used to evaluate the aroma-quality of gonad. The results showed that special and first grades of female crabs had the highest aroma-quality among the six crab samples. Meanwhile, furans, ketones, aromatics, and aldehydes were identified as the four characteristic aroma species that related and contributed a lot to “better quality of aroma”. With a unified consideration of gender factor, we conclude that higher grades of crabs result in better quality of aroma. However, female crabs always acquired higher S-scores than males of the same grade. We have demonstrated that PCA can be used to successfully establish a model for evaluating aroma-quality of crab gonad. Our work offers some theoretical references for future efforts in flavor property improvement.关键词
中华绒螯蟹/香气成分/主成分分析/品质评价/性腺Key words
Eriocheir sinensis/aroma compound/principal component analysis/quality evaluation/gonad分类
农业科技引用本文复制引用
顾赛麒,王锡昌,陶宁萍,张晶晶,吴娜..中华绒螯蟹性腺香气品质评价方法[J].中国水产科学,2013,(2):434-441,8.基金项目
上海市中华绒螯蟹产业技术体系建设项目(D-8003-10-0208) （D-8003-10-0208）
上海市教委食品质量与安全重点学科建设项目(J50704) （J50704）
上海海洋大学优秀研究生论文培育计划项目(B-9600-10-0003-3) （B-9600-10-0003-3）
