食品科学2011，Vol.32Issue(16)：257-260,4.
电子鼻对不同温度下生鲜羊奶贮藏时间的判定
Discrimination of Storage Time and Volatile Compositions of Raw Goat Milk by Electronic Nose
摘要
Abstract
An electronic nose system PEN3 was used to discriminate the storage time of raw goat milk at 4 ℃ and 25 ℃.The volatile composition of goat milk was sampled by PEN3,and the obtained data were analyzed using principal component analysis（PCA） and linear discrimination analysis（LDA）.The results showed that PCA method could discriminate the storage temperature and time of raw goat milk except for the variation of volatiles during storage.On the contrary,LDA method could not discriminate the storage temperature and time effectively although it could discriminate the variation in volatiles during storage.These findings collectively indicate that electronic nose can effectively discriminate the storage time of raw goat milk at 4℃ and 25 ℃ and the variation in volatiles during storage.关键词
电子鼻/温度/羊奶/贮藏时间/主成分分析法/线性判别分析法Key words
electronic nose/goat milk/storage temperature/storage time/principal component analysis（PCA）/linear discrimination analysis（LDA）分类
轻工纺织引用本文复制引用
张虹艳,丁武..电子鼻对不同温度下生鲜羊奶贮藏时间的判定[J].食品科学,2011,32(16):257-260,4.基金项目
国家公益性行业（农业）科研专项经费项目 （）
西北农林科技大学校青年学术骨干支持计划资助项目 （）
