| 不同遮荫处理对绿茶品质的影响 |
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| 引用本文： | 孙京京,朱小元,罗贤静丽,邓骋,宁井铭.不同遮荫处理对绿茶品质的影响[J].安徽农业大学学报,2015,42(3):387-390. |
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| 作者姓名： | 孙京京 朱小元 罗贤静丽 邓骋 宁井铭 |
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| 作者单位： | 安徽农业大学茶树生物学与资源利用国家重点实验室,合肥,230036;安徽农业大学茶树生物学与资源利用国家重点实验室,合肥,230036;安徽农业大学茶树生物学与资源利用国家重点实验室,合肥,230036;安徽农业大学茶树生物学与资源利用国家重点实验室,合肥,230036;安徽农业大学茶树生物学与资源利用国家重点实验室,合肥,230036 |
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| 基金项目： | 安徽农业大学“大学生创新创业训练计划”创新训练项目(2013);现代农业(茶叶)产业技术体系建设专项资金(农科教发[2011]3号)共同资助 |
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| 摘 要： | 苦涩味重是影响夏、秋绿茶品质的重要因素。通过对不同季节的茶园进行不同程度的遮荫处理,对茶叶中与茶汤苦涩味相关的主要化学成分进行分析。结果表明,遮荫处理能使茶叶中氨基酸含量增加;茶多酚含量、酚氨比比值降低,优化了氨基酸和儿茶素组分,同时叶绿素含量也增加,从而提高了绿茶的品质。遮荫处理对于夏茶的影响较大,秋茶次之,春茶的影响较小,且双层黑色遮荫网的效果优于单层黑色遮荫网的效果。
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| 关 键 词： | 遮荫 茶叶生化成分 茶叶品质 |
| 收稿时间： | 2015/1/13 0:00:00 |
Effects of different degrees of shading on green tea quality |
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| SUN Jingjing,ZHU Xiaoyuan,LUO Xianjingli,DENG Cheng and NING Jingming.Effects of different degrees of shading on green tea quality[J].Journal of Anhui Agricultural University,2015,42(3):387-390. |
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| Authors: | SUN Jingjing ZHU Xiaoyuan LUO Xianjingli DENG Cheng and NING Jingming |
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| Institution: | SUN Jingjing;ZHU Xiaoyuan;LUO Xianjingli;DENG Cheng;NING Jingming;State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University; |
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| Abstract: | Bitterness and astringency of the summer-autumn tea affect tea quality. The effect of shading on chemical compositions related to bitterness and astringency in tea leaves at different growing seasons was investigated. The results showed that the amino acids increased, the tea polyphenols and the ratio of polyphenols decreased, which optimizing the amino acid and catechin components; moreover, total chlorophyll content increased, which indicated that shading could effectively improve the tea quality. The degree of shading effect on the tea quality was: summer > autumn > spring. The double-layer cover of a black net gave a better result than the mono- layer cover. |
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| Keywords: | shading tea biochemical components tea quality |
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