食品科学 ›› 2010, Vol. 31 ›› Issue (20): 318-321.doi: 10.7506/spkx1002-6630-201020066

• 分析检测 • 上一篇    下一篇

电子鼻对芝麻油掺假的检测

潘磊庆,唐 琳,詹 歌,梁晨曦,谢一平,屠 康*   

  1. 南京农业大学食品科技学院,农业部农畜产品加工与质量控制重点开放实验室
  • 收稿日期:2010-07-01 修回日期:2010-08-31 出版日期:2010-10-25 发布日期:2010-12-29
  • 通讯作者: 屠康 E-mail:kangtu@njau.edu.cn
  • 基金资助:

    国家“863”计划项目(2007AA10Z213);江苏省农业攻关项目(BE 2007320);
    南京农业大学青年科技创新基金项目(Y200827);中农- 南农青年教师开放基金项目(NC2008004)

Detection of Adulteration in Sesame Oil Using Electronic Nose

PAN Lei-qing,TANG Lin,ZHAN Ge,LIANG Chen-xi,XIE Yi-ping,TU Kang*   

  1. Key Open Laboratory of Agricultural and Animal Products Processing and Quality Control, Ministry of Agriculture,
    College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
  • Received:2010-07-01 Revised:2010-08-31 Online:2010-10-25 Published:2010-12-29
  • Contact: Kang Tu E-mail:kangtu@njau.edu.cn

摘要:

使用电子鼻系统PEN3 对芝麻油中掺入大豆油、玉米油、葵花籽油进行检测分析,分别对芝麻油中不同量的掺假进行辨别,用主成分分析(PCA)和线性判别式分析(LDA)两种方法分析。结果表明:电子鼻能够较好的识别芝麻油掺假不同比例的大豆油、玉米油和葵花籽油,而且LDA 方法比PCA 方法的效果好。PCA 方法对掺入大豆油、玉米油超过50% 和葵花籽油超过70% 的芝麻油能明显区分,而LDA 方法对芝麻油中掺入不同量的大豆油、玉米油和葵花籽油均能明显区分。

关键词: 电子鼻, 芝麻油, 掺假, 检测

Abstract:

In this study, the detection of adulteration in sesame oil was performed using a PEN3 electronic nose system. Sesame oils adulterated with different concentrations of cheaper seed oils such as soybean oil, corn oil and sunflower oil were distinguished. Principal component analysis (PCA) and linear discriminant analysis (LDA) were used. The results showed that the adulteration of sesame oil could be detected effectively and LDA was more competent than PCA. Sesame oils adulterated with soybean oil or corn oil at levels of adulteration exceeding 50% were distinguished easily by PCA and the distinguishable adulteration level for sunflower oil was beyond 70% (V/V). However, LDA could easily distinguish different levels of adulteration with each of the three cheaper seed oils.

Key words: electronic nose, sesame oil, adulteration, detection

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