食品科学2017，Vol.38Issue(20)：222-228,7.DOI:10.7506/spkx1002-6630-201720032
电子鼻结合气相色谱-质谱法对宁夏小尾寒羊肉中鸭肉掺假的快速检测
Rapid Detection of Ningxia Small-Tailed Han Sheep Meat Adulterated with Duck by Electronic Nose Combined with GC-MS
摘要
Abstract
A rapid method to detect mutton adulterated with duck by electronic nose combined with gas chromatgraphy-mass spectrometry (GC-MS) was proposed and validated by applying it on adulterated samples of Ningxia small-tailed han sheep meat with different amounts of cooked meat added.The electronic nose responses to the volatile components of meat samples were used to establish qalitative and quantitative models through Fisher linear discriminant analysis (FLDA) and linear regression analysis.Meanwhile,solid phase microextraction coupled with GC-MS was used to detect the volatile compounds.The results showed that different proportions of adulteration could be distinguished by FLDA with an accuracy rate of 98.2％.The correlation coefficient from linear regression analysis was as high as 0.965.A total of 26 volatile compounds were detected by GC-MS,including 3-cyclohepten-1-one and 3-methyl butyraldehyde,which played a significant role in the discrimination of different adulterated samples.The partial least squares regression models established based on the electronic nose and GC-MS data exhibited a determination coefficient of greater than 0.950.There was a high correlation between the response values of sensors S1,S3,S5,S6,S8 and S9 and the GC-MS data.关键词
羊肉/鸭肉/电子鼻/气相色谱-质谱法/多元分析方法Key words
mutton/duck/electronic nose/gas chromatography-mass spectrometry (GC-MS)/multivariate analysis method分类
轻工纺织引用本文复制引用
王綪,李璐,王佳奕,张娟,王远一飞,丁武..电子鼻结合气相色谱-质谱法对宁夏小尾寒羊肉中鸭肉掺假的快速检测[J].食品科学,2017,38(20):222-228,7.基金项目
“十三五”国家重点研发计划重点专项(2016YFD0401500) （2016YFD0401500）
