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中国农学通报

中国农学通报 ›› 2013, Vol. 29 ›› Issue (27): 210-214.doi: 10.11924/j.issn.1000-6850.2013-1429

所属专题： 玉米

• 食品 营养 检测 安全 • 上一篇    下一篇

电子鼻对玉米黄浆品质的监测

吴晓萌 郭雪松 黄晓杰   

  • 收稿日期:2013-05-21 修回日期:2013-06-04 出版日期:2013-09-25 发布日期:2013-09-25
  • 基金资助:
    辽宁省科学技术计划项目

Survey Quality of Corn Gluten by Gas Sensor

  • Received:2013-05-21 Revised:2013-06-04 Online:2013-09-25 Published:2013-09-25

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摘要： 为了对玉米黄浆进行长时间检测估测出玉米黄浆保质期，采用电子鼻PEN3对玉米黄浆挥发性物质进行检测，运用主成分分析(PCA)、线性鉴别分析(LDA)研究室温和冷藏保存的玉米黄浆变质程度，结果表明：室温保存的样品，每日测量第4天发生略微变质，7天发生严重变质；冷藏样品，每周检测，在轻微变质后每天进行检测，在第28天发生轻微变质，第39天发生严重变质。

关键词: 越冬期, 越冬期, 气象要素, 变化特征, 关联度

Abstract: In order to assess corn gluten shelf life for a long time. The determination of corn gluten volatile matter to carry on the analysis by the electronic nose PEN3, using principal component analysis (PCA), linear discrimination analysis (LDA) detection estimate corn gluten shelf life for long time which divided into room temperature and refrigerated storage. The results showed that: room temperature samples sampling every day. occurring slightly metamorphic at the 4th day, occurring heavily metamorphic at the 7th day. Room temperature samples sampling every day, take sample 5 mL every week which stored refrigerated occurring slightly metamorphic at the 28th day, occurring heavily metamorphic at the 39th day.