[1]张鹏,李江阔,陈绍慧.1-MCP常温不同处理时间苹果的电子鼻判别分析[J].北方园艺,2015,39(12):119-124.[doi:10.11937/bfyy.201512031]
　ZHANG Peng,LI Jiang-kuo,CHEN Shao-hui.Discriminant Analysis of Apples with 1-MCP at Different Treatment Time Under Ambient Temperature by Electronic Nose[J].Northern Horticulture,2015,39(12):119-124.[doi:10.11937/bfyy.201512031]

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1-MCP常温不同处理时间苹果的电子鼻判别分析

《北方园艺》[ISSN:1001-0009/CN:23-1247/S] 卷: 第39卷期数: 2015年12 页码: 119-124 栏目: 出版日期: 2015-06-30

Title:: Discriminant Analysis of Apples with 1-MCP at Different Treatment Time Under Ambient Temperature by Electronic Nose

文章编号:: 1001-0009（2015）12-0119-06

作者:: 张鹏; 李江阔; 陈绍慧; 国家农产品保鲜工程技术研究中心，天津市农产品采后生理与贮藏保鲜重点实验室，天津 300384

Author(s):: ZHANG Peng; LI Jiang-kuo; CHEN Shao-hui; National Engineering and Technology Research Center for Preservation of Agricultural Products，Tianjin Key Laboratory of Postharvest Physiology and Storage of Agricultural Products，Tianjin 300384

关键词:: 苹果; 电子鼻; 判别分析; 1-MCP; 处理时间

Keywords:: apple; electronic nose; discriminant analysis; 1-methylcyclopropene; treatment time

分类号:: S 661.1

DOI:: 10.11937/bfyy.201512031

文献标志码:: A

摘要:: 以“富士”苹果为试材，利用电子鼻对1-MCP常温不同处理时间内的苹果挥发性成分进行检测分析，通过电子鼻系统动态采集苹果挥发性成分并得到电子鼻的响应值，并用PCA和LDA模式判别方法进行数据分析。结果表明：PCA方法能够区分贮后相同货架期内1-MCP处理组和对照组，但对1-MCP不同处理组间区分效果不理想。LDA方法可以准确地对贮后相同货架期内所有处理的苹果进行判别区分。Loadings分析表明，传感器2、6、7、8、9在1-MCP常温不同处理时间的苹果电子鼻判别中发挥着主要作用。因此，利用电子鼻可以实现1-MCP常温不同处理时间苹果的判别区分，且LDA方法优于PCA方法。

Abstract:: Taking‘Fuji’apple as test materials，the aroma composition in ‘Fuji’apples with 1-MCP at different treatment times under ambient temperature was detected by electronic nose.Dynamic aroma sampling was achieved by electronic nose and response values of the instrument were obtained.It was followed by data analysis using principal component analysis (PCA) and linear discrimination analysis(LDA).The results showed that the use of PCA was able to discriminate apples on 1-MCP treatment group and control group at the same shelf life after cold storage，but distinguishing effect of apples between different treatment groups of 1-MCP was undesirability.The use of LDA was able to exactly discriminate apples among all treatment groups at the same shelf life after cold storage.Loading analysis indicated that sensors of 2，6，7，8 and 9 played important roles in apples with 1-MCP at different treatment time under ambient temperature.Therefore，discriminant of apples with 1-MCP at different treatment time under ambient temperature by electronic nose was possible，and LDA was better than PCA.

参考文献/References:

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备注/Memo

第一作者简介：张鹏（1981-），女，博士，助理研究员，现主要从事果蔬贮运保鲜及无损检测技术等研究工作。E-mail:zhangpeng811202@163.com.责任作者：李江阔（1974-），男，博士，副研究员，现主要从事农产品安全与果蔬贮运保鲜新技术等研究工作。E-mail：lijkuo@sina.com.基金项目：〖JP4〗国家“十二五”科技支撑计划资助项目（2012BAD38B01）。

更新日期/Last Update: 2015-08-11