南方农业学报2017，Vol.48Issue(12)：2253-2258,6.DOI:10.3969/j.issn.2095-1191.2017.12.22
江苏地区白化茶品质成分比较分析
Analysis on quality components of albino tea from different areas in Jiangsu
摘要
Abstract
[Objective]The quality of albino tea after being introduced in Jiangsu was studied to provide reference for its in-troduction,cultivation and quality management.[Method]Samples were taken from main tea planting areas in Jiangsu(Zhang-miao,Jurong;Huishan,Wuxi;Yushan,Yixing;Songling,Liyang;Xuebu,Jintan;Henan,Gaochun;Kongzhen,Lishui;Xieji,Yizheng)and place of origin for Anji white tea(Xilong,Anji,Zhejiang).Quality components such as chlorophyll,miner-al element,free amino acid and tea polyphenol of albino tea from different areas were analyzed,and the processed tea quality were evaluated combining sensory evaluation.[Result]Chlorophyll contents in fresh leaf from nine albino tea gardens were at a low level on the whole,albino degree of fresh leaf was higher.The total chlorophyll content(0.40 mg/g)and SPAD value(12.5) of albino leaves in Yizheng,Xieji were the lowest among all of them. There were differences in macroelements and trace elements of albino tea fresh leaves from different areas.Macroelements and trace elements(excepted manganese)were found at a high level in leaves from Yizheng,Xieji,moreover,the content of free amino acids in fresh leaves in this area was the highest (6.03%),and the content of tea polyphenols was the lowest(14.90%),and the ratio of tea polyphenol to amino acid was also the lowest(2.49).The content of free amino acids and tea polyphenols in fresh leaves were high from Xilong,Anji;Songling, Liyang;Huishan,Wuxi and Zhangmiao,Jurong.Their ratios of tea polyphenol to amino acid were all lower than 8.00,and presented good quality. Sensory evaluation results showed that the processed albino tea in Xilong,Anji had the best perfor-mance,its appearance,aroma,taste and infused leaf ranked the top with a total score of 92.0.The processed albino tea from tea gardens in Huishan,Wuxi;Songling,Liyang and Zhangmiao,Jurong presented sound performance with a total score over 90.0.Their taste,soup color and aroma were seconded to those processed in the place of origin.[Conclusion]Albino tea can be introduced in main tea planting areas in Jiangsu(Xieji,Yizheng;Huishan,Wuxi;Songling,Liyang;Zhangmiao,Jurong) to increase the market share of Jiangsu albino tea.关键词
白化茶/叶绿素/矿质元素/品质成分/感官审评/江苏Key words
albino tea/chlorophyll/mineral element/quality component/sensory evaluation/Jiangsu分类
农业科技引用本文复制引用
万青,胡雲飞,陆文渊,胡振民,李荣林,杨亦扬..江苏地区白化茶品质成分比较分析[J].南方农业学报,2017,48(12):2253-2258,6.基金项目
国家重点研发计划项目(2016YFD0200905) （2016YFD0200905）
国家自然科学基金项目(31600558,31400587) （31600558,31400587）
江苏省自然科学基金项目(BK20160590) （BK20160590）
