不同月份云南大叶种晒青茶化学成分变化研究  

Research on the Chemical Composition Change of Yunnan Big Leaf Species Sun-dry Tea in Different Months

作　　者：浦绍柳[1] 夏丽飞[1] 邓少春[1] 周玉忠[1] 

机构地区：[1]云南省农科院茶叶研究所,云南勐海666200

出　　处：《中国农学通报》2015年第6期247-250,共4页Chinese Agricultural Science Bulletin

基　　金：云南省科学技术厅项目"云南茶园提质增效关键技术研究与示范"(2012CH008)

摘　　要：为掌握云南大叶种晒青茶主要内含化学成分的变化趋势,分析其适制性,为普洱茶的生产提供理论依据,试验分析了2013年3—10月生产的云南大叶种晒青茶中主要化学成分的含量变化。结果表明:茶多酚含量3—7月呈递增趋势,7—10月又呈递减趋势,7月最高,达41.77%;儿茶素含量3—8月呈递增趋势,8—10月又呈递减趋势,8月最高,达14.5%;水浸出物含量3—7月呈递增趋势,7—10月呈递减趋势,7月最高,达51.74%;氨基酸含量3—6月呈递减趋势,6—10月呈递增趋势,6月最低,为2.45%;咖啡碱含量3—7月呈递增趋势,7—10月又呈递减趋势,7月最高,达3.82%。To grasp the change trend of main chemical composition of Yunnan big leaf species sun dried greentea,analyze the optimum processing suitability,and provide the theory basis for the production of Pu＇er tea,theauthor conducted an experiment on the content change of the main chemical composition of Yunnan big leafspecies sun-dry tea which were produced between March and October in 2013.The results showed that teapolyphenols content increased progressively from March to July,and it showed a decreasing trend from July toOctober,the highest record appeared in July which reached 41.77%.Catechins content presented anincreasing trend from March to August,and it showed a decreasing trend from August to October,the highestrecord was 14.5% which appeared in August.Water extract content increased progressively from March to July,and it decreased progressively from July to October,the highest record appeared in July which reached51.74%.The amino acid content presented a decreasing trend from March to June,and it showed an increasingtrend from June to October,the lowest record appeared in June which was 2.45%.Caffeine content presentedan increasing trend from March to July,and it showed a decreasing trend from July to October,the highestrecord was 3.82% which appeared in July.

关 键 词：云南大叶种 晒青茶 化学成分 普洱茶 适制性 

分 类 号：S-3[农业科学]