食品科学 ›› 2012, Vol. 33 ›› Issue (16): 167-170.

• 分析检测 • 上一篇    下一篇

电子鼻技术对不同贮藏条件银杏果挥发性组分的比较

吴彩娥,范龚健,李婷婷,陈 榕,吴海霞   

  1. 南京林业大学森林资源与环境学院
  • 收稿日期:2012-03-07 修回日期:2012-07-09 出版日期:2012-08-25 发布日期:2012-09-07
  • 通讯作者: 吴海霞 E-mail:whxviolet@163.com
  • 基金资助:

    江苏省科技支撑(农业)项目;国家林业局林业公益性行业科研专项项目;江苏高校优势学科建设工程资助项目;江苏高等学校创新团队科研计划

Comparison of Volatile Components in Ginkgo Fruits Stored in Different Conditions by Electronic Nose

  • Received:2012-03-07 Revised:2012-07-09 Online:2012-08-25 Published:2012-09-07

摘要: 为了分析不同的贮藏条件银杏果中挥发性组分的性质,采用电子鼻对不同材料包装和不同保鲜剂处理后的银杏果挥发性气味进行检测,并对所得数据进行分析。采用不同材料包装的银杏果,传感器主成分1和主成分2的累积方差贡献率为99.44%,鉴别指数达到94;采用不同保鲜剂处理的银杏果,传感器主成分1和主成分2的累积方差贡献率为99.48%,鉴别指数达到86。结果表明:采用不同包装材料和不同保鲜剂处理的银杏果在贮藏一段时间后气味均有较大差异,运用电子鼻能够很好地将其区分。电子鼻对经过不同材料包装贮藏和不同保鲜剂处理贮藏的银杏果挥发性气味反应灵敏,可以用于银杏果气味分析。

关键词: 银杏果, 保鲜剂, 包装材料, 电子鼻, 主成分分析

Abstract: In order to analyze the properties of volatile components in ginkgo fruits stored in different conditions, an electronic nose FOX4000 was used to detect the volatile odors of ginkgo fruits treated with different preservatives and packaged with different materials after 140 days of storage at 4 ℃. The results indicated that the cumulative contribution rates of the fist and second principal components and discrimination index for ginkgo fruits with different material packaging treatments were 99.44% and 94, respectively, while those for ginkgo fruits with different preservative treatments were 99.48% and 86, respectively. Electronic nose allowed sensitive distinguishing among the significantly different volatile odors of ginkgo fruits due to the different preservation and packaging treatments.

Key words: ginkgo seeds, preservative, packaging material, electronic nose, principle component analysis (PCA)

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