LED光萎凋对乌龙茶雨水青的光响应及对其品质的影响  

Effect of LED Light Withering on Light Response and Quality of Oolong Tea Rain Leaves

作　　者：王婷婷[1] 陈寿松[1] 俞少娟[1] 李鑫磊[1] 金心怡[1] 

机构地区：[1]福建农林大学园艺学院,福建福州350002

出　　处：《热带作物学报》2016年第1期47-52,共6页Chinese Journal of Tropical Crops

基　　金："十二五"国家科技支撑计划项目(No.2014BAD06B06)

摘　　要：为解决乌龙茶阴雨天难制茶,茶叶品质低的问题,试验以LED蓝光为萎凋光源,通过设置5个不同萎凋温度,探讨LED蓝光对雨水青萎凋过程的光响应变化规律和理化变化的影响。试验结果表明:相比无光照的CK,LED蓝光萎凋有利于提高乌龙茶雨水青的净光合速率、萎凋叶水浸出物、可溶性总糖含量,并能降低酚氨比,提高毛茶品质。其中LED蓝光在萎凋温度为30℃和35℃时,雨水青光响应较好,净光合速率大于其他温度的处理,萎凋叶生化品质较优,毛茶感官审评得分较高,不仅加速了在制叶萎凋进程,而且促进了乌龙茶优异品质的形成。In order to improve the quality of Oolong Tea in rainy days, an experiment with rain leaves of south Fujian Oolong tea as the research object by taking the no light withering as the control with 5 different withering temperatures was conducted to investigate the effect of LED blue light on light response variation and physical chemical changes during the fresh leaf withering process. The results showed that compared with CK, LED blue light withering was conducive to improving the quality of tea. At the withering temperature 30 ℃ and 35 ℃, the fresh leaf light response was better, the net photosynthetic rate reached the maximum, and the withering quality and sensory quality were better, which not only accelerated the withering process of fresh leaf, but also promoted the formation of the excellent quality of Oolong Tea.

关 键 词：乌龙茶 LED光萎凋 光响应 品质 

分 类 号：S571.1[农业科学—茶叶生产加工]