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。
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.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2012年第3期123-129,共7页
Transactions of the Chinese Society for Agricultural Machinery
基金
云南省科技计划项目(20050019002)
关键词
普洱茶
丙烯酰胺
生成机理
渥堆发酵
Pu-erh tea, Acrylamide, Formation mechanism, Wet-stored fermentation
