| 基于电子鼻技术的信阳毛尖茶咖啡碱检测方法 |
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| 引用本文： | 张红梅,王俊,余泳昌,高献坤,花恒明,何玉静. 基于电子鼻技术的信阳毛尖茶咖啡碱检测方法[J]. 传感技术学报, 2011, 24(8): 1223-1227. DOI: 10.3969/j.issn.1004-1699.2011.08.028 |
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| 作者姓名： | 张红梅 王俊 余泳昌 高献坤 花恒明 何玉静 |
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| 作者单位： | 1. 河南农业大学机电工程学院,郑州,450002
2. 浙江大学生物系统工程与食品科学学院,杭州,310029 |
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| 基金项目： | 中国博士后基金项目(2009046054);中国博士后基金特别资助项目(201003396); 河南省教育厅自然科学基金项目(2009B210017) |
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| 摘 要： | 本文采用电子鼻系统对三个等级的信阳毛尖茶进行了检测.采用Loading分析和相关分析对传感器阵列进行优化,选出四个传感器为最终的新传感器阵列,用于信阳毛尖茶的品质识别.PCA分析结果显示,可以将不同等级的茶叶完全区分开,而且效果比较好.利用PCR、MLR和QPSa方法分别建立信阳毛尖茶基于气敏传感器阵列的咖啡碱预测模型...
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| 关 键 词： | 电子鼻 咖啡碱 信阳毛尖 主成分回归 多元线性回归 二次多项式回归 |
Detection of caffeine in Xinyangmaojian tea by an electronic nose |
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| ZHANG Hongmei,WANG Jun,YU Yongchang,GAO Xiankun,HUA Hengming,HE Yujing. Detection of caffeine in Xinyangmaojian tea by an electronic nose[J]. Journal of Transduction Technology, 2011, 24(8): 1223-1227. DOI: 10.3969/j.issn.1004-1699.2011.08.028 |
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| Authors: | ZHANG Hongmei WANG Jun YU Yongchang GAO Xiankun HUA Hengming HE Yujing |
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| Affiliation: | ZHANG Hongmei1,WANG Jun2,YU Yongchang1,GAO Xiankun1,HUA Hengming1,HE Yujing11.College of Mechanical and Electrical Engineering,Henan Agricultural University,Zhengzhou 450002,China,2.College of Biosystems Engineering and Food Science,Zhejiang University,Hangzhou 310029 |
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| Abstract: | Three different grades of Xinyangmaojian tea were detected by an electronic nose system.The optimization of a gas sensor array consisting of four gas sensors was selected by loading analysis and correlation analysis.Principle component analysis of the data provided by the electronic nose completely distinguished all the tea samples.The principle component regression(PCR),multiple linear regression(MLR),and quadratic polynomial step regression(QPSR)models of the caffeine content of Xinyangmaojian tea were cr... |
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| Keywords: | electronic nose caffeine Xinyangmaojian tea principle component regression multiple linear regression quadratic polynomial step regression |
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