基于电子鼻技术的金华火腿鉴别与分级  

Identification and Classification of Jinhua Ham by Electronic Nose

作　　者：姚璐[1] 丁亚明 马晓钟 郭如斌 尹中 王震 沈立荣[1] 裘正军[1] 

机构地区：[1]浙江大学生物系统工程与食品科学学院,浙江杭州310058 [2]金华市质量技术监督检测院,浙江金华321001 [3]金华市汉邦食品有限公司,浙江金华321071

出　　处：《食品与生物技术学报》2012年第10期1051-1056,共6页Journal of Food Science and Biotechnology

基　　金：浙江省质监系统科研计划项目(20110238)

摘　　要：研制一套适合金华火腿品质的电子鼻分级系统,对3个等级的金华火腿样品进行了检测,获得了电子鼻传感器的响应值。再利用线性判别式分析(LDA)、主成分分析(PCA)和偏最小二乘法(PLS)等多元统计方法进行了数据处理,其中LDA用来鉴别,PCA用来降维,PLS用来预测。结果表明电子鼻能够很好地区分不同品质等级的金华火腿,并验证了预测金华火腿等级的实际效果。该研究所提出的品质分级检测新方法将为金华火腿标准的修订和完善提供科学依据。An electronic nose(E-nose) was developed to distinguish different grades of Jinhua hams through detecting the aroma of three types of Jinhua ham samples to obtain the response value respectively.Then the data was analyzed by using Principal Component Analysis(PCA),Linear Discriminant Analysis(LDA) and Partial Least Squares(PLS).LDA was used for identification,PCA for dimensionality reduction and PLS for prediction.Results showed that electronic nose can distinguish different grades of Jinhua hams.The method was confirmed in prediction of Jinhua hams with different grades.The research will provide an important scientific knowledge to improve and perfect the national standard of Jinhua hams in future.

关 键 词：电子鼻 金华火腿 鉴别 分级 

分 类 号：TS251.7[轻工技术与工程—农产品加工及贮藏工程]