电子鼻在掺假牛肉馅识别中的应用

The application of electronic nose in adulterated minced beef identification

为了探索电子鼻对牛肉类掺假识别的可行性,利用电子鼻对牛胸肉、猪前槽肉、鸡胸肉和鸡皮样品进行了检测分析。通过对所获得的数据进行主成分分析(principal component analysis,PCA)、线性判别分析(linear discriminantanalysis,LDA),结果表明:电子鼻能够较好的识别牛胸肉馅料中掺入不同比例的猪前槽肉、鸡胸肉和鸡皮,且LDA方法的效果明显优于PCA方法。

In order to detect the feasibility of beef adulteration with electronic nose,the beef,pork,chicken and chicken skin sample were detected by electronic nose. Principal component analysis（ PCA） and linear discriminant analysis（ LDA） were employed according to the data obtained. The results indicated that electronic nose could well discriminate the beef with different ratio adulteration of pork,chicken breast and chicken skin,moreover,the recognition effect of LDA was better than PCA.