食品工业科技2012，Vol.33Issue(24)：120-125,6.
基于主成分分析和聚类分析评价中华绒螯蟹蟹肉香气品质的研究
Evaluation on aroma-quality of meat,of Chinese mitten handed crab(Eriocheir sinensis) by principal component analysis and cluster analysis
摘要
Abstract
HS-SPME-GC-MS(Headspace solid phase micro-extraction coupled with gas chromatography and mass spectrometry) technology was applied to detect the aroma compounds from various edible parts (abdomen,claw and leg) of female Yangcheng-Lake-crabs in different grades(special,first and second). An internal standard (TMP) was introduced to quantitate the concentrations of aroma compounds and the concentration data were analyzed by principal component analysis(PCA) and cluster analysis(CA) methods. PCA results showed that,claw and leg meat from three grades,all acquired positive S-scores(except claw meat from second grade) and could be assumed to have the better aroma-quality. Meanwhile,alcohols, ketones,furans,N-containings and aromatics had been found out to be the five characteristic aroma species which related and contributed a lot to "better quality of aroma". With a unified consideration of edible part factor,it was found that higher grades of crabs resulted in better quality of aroma. However,claw meat acquired higher S-scores than abdomen meat and lower S-scores than leg meat. CA results showed that, aroma profile of abdomen and leg meat from three grades could be classified as one cluster. Similarly, alcohols,furans,ketones,N-containings and aromatics were in one cluster due to their high similarities. As a conclusion,consistency existed between PCA and CA results,indicating these two methods might mutual supply each other and could be used to establish a model for evaluating aroma-quality of crabmeat.关键词
中华绒螯蟹/香气/主成分分析/聚类分析/气-质联用Key words
Chinese mitten handed crab/aroma compounds/principal component analysis/clusters analysis GC-MS分类
轻工纺织引用本文复制引用
顾赛麒,王锡昌,陶宁萍,张晶晶,吴娜..基于主成分分析和聚类分析评价中华绒螯蟹蟹肉香气品质的研究[J].食品工业科技,2012,33(24):120-125,6.基金项目
基金项目：“上海市中华绒螯蟹产业技术体系建设”项目 （）
上海市教委“食品质量与安全”重点学科建设项目 （）
上海海洋大学优秀研究生论文培育计划项目（B-9600-10-0003-3）. （）
