| 普洱茶中丙烯酰胺含量检测与生成机理研究 |
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| 引用本文： | 李蕾,张涛,孙志健,陈芳,胡小松.普洱茶中丙烯酰胺含量检测与生成机理研究[J].农业机械学报,2012,43(3):123-129. |
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| 作者姓名： | 李蕾 张涛 孙志健 陈芳 胡小松 |
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| 作者单位： | 1. 中国农业大学食品科学与营养工程学院,北京,100083
2. 中国农业大学动物科技学院,北京,100094 |
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| 基金项目： | 云南省科技计划项目（20050019002） |
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| 摘 要： | 对50份普洱茶样进行了检测,表明普洱茶样中丙烯酰胺(AA)含量总体较低(2.05～91.95 ng/g)。通过对渥堆茶样中AA生成量与蔗糖、葡萄糖、果糖含量进行相关性分析,得出蔗糖含量与AA生成量相关系数最大(R2=0.577 6),果糖次之(R2=0.497 7),葡萄糖相关性最小(R2=0.256 7)。渥堆普洱茶样中天冬酰胺含量低于检测限,无法检出。同时结合文献推测认为普洱茶渥堆发酵过程中AA主要是通过丙烯醛途径生成,天冬酰胺途径贡献很小。
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| 关 键 词： | 普洱茶 丙烯酰胺 生成机理 渥堆发酵 |
Survey of Acrylamide Contents in Pu-erh Tea and Study on Its Formation Mechanism |
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| Li Lei,Zhang T,Sun Zhijian,Chen Fang and Hu Xiaosong.Survey of Acrylamide Contents in Pu-erh Tea and Study on Its Formation Mechanism[J].Transactions of the Chinese Society of Agricultural Machinery,2012,43(3):123-129. |
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| Authors: | Li Lei Zhang T Sun Zhijian Chen Fang and Hu Xiaosong |
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| Institution: | China Agricultural University;China Agricultural University;China Agricultural University;China Agricultural University;China Agricultural University |
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| Abstract: | Fifty Pu-erh tea samples were investigated for acrylamide(AA) contents.The results showed that the AA contents in tea samples were generally low,2.05~91.95 ng/g.Based on the correlation analysis between sugar contents and the amount of AA,it was found there was the highest correlation coefficient between the sucrose content and AA(R2=0.577 6),followed by fructose(R2=0.497 7),glucose was the least(R2=0.256 7).The asparagine contents of wet-stored Pu-erh tea samples could not detected.In combination with literature records,it could be concluded that AA mainly generated through acrolein way during the fermentation of Pu-erh tea.There was a very small contribution of asparagine way. |
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| Keywords: | Pu-erh tea Acrylamide Formation mechanism Wet-stored fermentation |
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