›› 2016, Vol. 28 ›› Issue (10): 1724-1729.DOI: 10.3969/j.issn.1004-1524.2016.10.14

• Horticultural Science • Previous Articles     Next Articles

Identification and characterization of new tea line Lizaoxiang based on chemical fingerprint

PAN Jian-yi1, CHENG Hao2, *, WANG Li-yuan2, MA Jun-hui1, CHEN Xiang-yun3   

  1. 1. Crop Workstation of Agriculture Bureau of Lishui, Lishui 323000, China;
    2. Tea Research Institute of Chinese Academy of Agricultural Sciences, National Center for Tea Improvement, Hangzhou 310008, China;
    3.Forest Workstation of Gaochun District of Nanjing, Jiangsu, Nanjing 211300, China
  • Received:2016-06-16 Online:2016-10-15 Published:2016-11-20

Abstract: Chemical fingerprint technology has widely been implicated for discriminating the identity and origin of tea plant. Difference identification between tea plant cultivars is important for applying for new variety certification. In the current study, we analyzed the chemical composition and proportion of bioactive compounds using HPLC and built a chemical fingerprint to distinguish Lizaoxiang from Longjing 43, Yingshuang and Jiukeng. On the basis of the obtained HPLC chromatographic data, we selected common peak data of more than 90% samples to build chemical fingerprint chromatograph for further analysis. Chromatography revealed that Lizaoxiang was closest to Jiukeng;while the proportion of catechins, gallic acid and caffeine was different from that of Longjing 43, Yingshuang and Jiukeng. These observations help to distinguish Lizaoxiang from Longjing 43, Yingshuang and Jiukeng, and thus provid reference to characterize the difference between the varieties of tea plant for new variety protection.

Key words: tea, Lizaoxiang, chemical fingerprint, identification analysis

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