食品科学 ›› 2011, Vol. 32 ›› Issue (2 ): 164-167.doi: 10.7506/spkx1002-6630-201102038

• 分析检测 • 上一篇    下一篇

电子鼻对酿酒酵母菌株产香特性的评价

刘宁1,马捷1,刘延琳1,2,*   

  1. 1.西北农林科技大学葡萄酒学院,陕西 杨凌      712100;2.陕西省葡萄与葡萄酒工程技术研究中心,陕西 杨凌      712100
  • 收稿日期:2010-09-21 修回日期:2010-12-07 出版日期:2011-01-25 发布日期:2011-01-10
  • 通讯作者: 刘延琳 E-mail:yanlinliu@nwsuaf.edu.cn
  • 基金资助:

    国家现代农业(葡萄)产业技术体系建设专项(nycytx-30)

Evaluation of Aroma-producing Characteristics of Saccharomyces cerevisiae Strains by Electronic Nose

LIU Ning1,MA Jie1,LIU Yan-lin   

  1. 1. College of Enology, Northwest A & F University, Yangling      712100, China;
    2. Shaanxi Engineering Research Center for Viti-viniculture, Yangling      712100, China
  • Received:2010-09-21 Revised:2010-12-07 Online:2011-01-25 Published:2011-01-10
  • Contact: LIU Yan-lin E-mail:yanlinliu@nwsuaf.edu.cn

摘要: 利用电子鼻PEN3 系统对不同酿酒酵母酿制葡萄酒的芳香成分进行检测分析。通过电子鼻系统动态采集葡萄酒试样的芳香成分,利用主成分分析(PCA)、线性判断分析(LDA)进行数据分析,两种分析方法都能较好的区分不同酵母对应的葡萄酒试样,表明酿酒酵母的产香能力具有菌株多态性,而电子鼻能够对其差异进行检测并加以区分。同时结合Loadings 分析方法得知,除7 号(对硫化物灵敏)、9 号(对有机硫化物灵敏)和10 号(对烷烃灵敏)外,其他的传感器在菌株的产香差异分析中起主要作用。

关键词: 电子鼻, 酵母, 葡萄酒, 检测

Abstract: An electronic nose (PEN3) was used to characterize and classify wines fermented by different strains of Saccharomyces cerevisiae. The aroma components emanating from the wines were dynamically sampled by a PEN3 system and analysis of the acquired data was made comparatively using principal component analysis (PCA) and linear discrimination analysis (LDA). The results showed that electronic nose was able to differentiate the wine samples following either analysis of PCA or LDA. The aroma-producing characteristics of Saccharomyces cerevisiae was of strain-specific diversity. Meanwhile loadings analysis showed most of the tested sensors played an important role in analyzing aroma difference, with exception of the seventh, ninth and tenth sensors.

Key words: electronic nose, yeast, wine aroma, detection

中图分类号: