激光与光电子学进展, 2010, 47 (4): 043001, 网络出版: 2010-03-20  

不同发酵茶叶的红外光谱特征 下载: 518次

Detecting Different Teas by Fourier Transform Infrared Spectroscopy
作者单位
楚雄师范学院 物理与电子科学系,云南 楚雄 675000
摘要
采用傅里叶变换红外光谱法,比较分析了不发酵茶、半发酵茶和全发酵茶红外特征谱的异同。结果显示,3类茶叶的红外光谱比较相似,但由于发酵程度不同,3类茶中茶多酚类物质成分的含量不同,因而具有一些各自的红外特征谱。研究表明,茶叶的不同发酵程度与茶叶的红外特征谱中的1037,1147,1324,1520和1240 cm 附近吸收峰的强度和峰形密切相关。探索了这两者之间的联系,发现根据茶叶样品的红外光谱特征峰的不同吸光度和峰形,可以区分茶叶的不同发酵程度。
Abstract
Unzymic Biluochun tea,zymic Pu-er tea,and half-zymic Oolong tea,were distinguished by Fourier transform infrared spectroscopy. Although they′re similar in infrared spectrum,the results still show differences in the characteristic peaks of infrared spectrum caused by difference between three kinds of teas of different zymic degree.The results show that zymic degrees of teas tie up with variety of absorbance band at about 1037,1147,1324,1520 and 1240 cm . According to the studies of the spectral peaks and absorbance rations,unzymic,half-zymic and zymic teas can be easily identified.
参考文献

[1] 宛晓春. 茶叶生物化学[M]. 北京:中国农业出版社,2005. 8

    Wan Xiaochun. Tea Biochemistry[M]. Beijing:China Agricultural Press,2005. 8

[2] 杨红杰. 云南普洱茶[M]. 昆明:云南科技出版社,2004

    Yang Hongjie. Yunan Puer-Tea[M]. Kunming:Yunnan Science & Technology Press,2004

[3] 李大祥,方世辉,杨荣俊 等. 绿茶、红茶加工工艺对茶鲜叶中多酚类物质的影响[J]. 中国茶叶加工,2005,(4):23,24-29

    Li Daxiang,Fang Shihui,Yang Rongjun et al.. Effects of processing for green and black teas on the polyphenols in tea leaves[J]. China Tea Processing,2005,(4):23,24-29

[4] . 普洱茶的化学成分及生物活性进展研究[J]. 茶叶科学, 2007, 27(1): 8-18.

    . . Advance in the study on the chemical composition and biological activity of Pu-er Tea[J]. J. Tea Sci., 2007, 27(1): 8-18.

[5] 农业部技术培训教材编审委员会编. 茶叶初(精)制技术[M]. 北京:中国农业出版社,1994

    The technital training committee of teaching material of editor of Depart-ment of Agriculture. Pre-manufacturing Technique for Tea[M]. Beijing:China Agricultural Press,1994

[6] 邹建平,王 璐,曾润生. 有机化合物结构分析[M].北京:科学出版社,2005

    Zhou Jianping,Wang Lu,Zeng Rusheng. Structural Analysis of Organic Compounds[M]. Beijing:Science Press,2005

杨群, 王怡林. 不同发酵茶叶的红外光谱特征[J]. 激光与光电子学进展, 2010, 47(4): 043001. Yang Qun, Wang Yilin. Detecting Different Teas by Fourier Transform Infrared Spectroscopy[J]. Laser & Optoelectronics Progress, 2010, 47(4): 043001.

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