量子电子学报, 2017, 34 (5): 513, 网络出版: 2017-10-30  

槠叶种新鲜茶树叶的拉曼光谱检测

Detection of fresh tea leaves of Zhuye by Raman spectroscopy
作者单位
华南师范大学信息光电子科技学院, 广东 广州 510006
摘要
基于激光拉曼光谱技术对新鲜茶叶原叶品质鉴定及产地区分进行了研究,对安徽祁门县六个村庄槠叶种新鲜茶树叶(简称原叶)进行了检测。结果表明不同产地原叶在748, 831, 1005, 1158, 1328, 1527, 1609 cm-1等处均有较强拉曼峰,但每组峰强度存在差异。采用主成分分析法(PCA)及线性判别分析法(LDA)对原叶的拉曼光谱进行了分析,得到不同产地原叶的区分度为70.7%。
Abstract
Based on laser Raman spectroscopy technology, the quality identification of fresh tea leaves and growing region discrimination are investigated. Fresh leaves of Zhuye (the original leaves) of six villages in Qimen County, Anhui, China are detected. Results show that there are strong Raman peaks at 748, 831, 1005, 1158, 1328, 1527, 1609 cm-1 in the original leaves from different regions, but the intensities of peaks are different in each group. Principal component analysis (PCA) and linear discriminant analysis (LDA) are used to analyze Raman spectra of the original leaves, and it’s found that the discrimination index of original leaves from different regions is 70.7%.

陈长水, 师星哲, 李谦, 刘兆伟. 槠叶种新鲜茶树叶的拉曼光谱检测[J]. 量子电子学报, 2017, 34(5): 513. CHEN Changshui, SHI Xingzhe, LI Qian, LIU Zhaowei. Detection of fresh tea leaves of Zhuye by Raman spectroscopy[J]. Chinese Journal of Quantum Electronics, 2017, 34(5): 513.

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