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

DOI：10.3969/j.issn.1673-1689.2012.10.007

中文关键词: 电子鼻 金华火腿 鉴别 分级

英文关键词: electronic nose(E-nose) Jinhua hams identification classification

基金项目:浙江省质监系统科研计划项目(20110238)

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中文摘要:

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。

英文摘要:

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.

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