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普洱茶中丙烯酰胺含量檢測(cè)與生成機(jī)理研究
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云南省科技計(jì)劃項(xiàng)目（20050019002）


Survey of Acrylamide Contents in Pu-erh Tea and Study on Its Formation Mechanism
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    摘要:

    對(duì)50份普洱茶樣進(jìn)行了檢測(cè)，表明普洱茶樣中丙烯酰胺（AA）含量總體較低（2.05～91.95ng/g）。通過(guò)對(duì)渥堆茶樣中AA生成量與蔗糖、葡萄糖,、果糖含量進(jìn)行相關(guān)性分析，得出蔗糖含量與AA生成量相關(guān)系數(shù)最大（R2=0.5776）,，果糖次之（R2=0.4977）,，葡萄糖相關(guān)性最?。≧2=0.2567）,。渥堆普洱茶樣中天冬酰胺含量低于檢測(cè)限,，無(wú)法檢出,。同時(shí)結(jié)合文獻(xiàn)推測(cè)認(rèn)為普洱茶渥堆發(fā)酵過(guò)程中AA主要是通過(guò)丙烯醛途徑生成,，天冬酰胺途徑貢獻(xiàn)很小。

    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, 2.05～91.95ng/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=0.5776), followed by fructose (R2=0.4977), glucose was the least (R2=0.2567). 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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李蕾,張濤,孫志健,陳芳,胡小松.普洱茶中丙烯酰胺含量檢測(cè)與生成機(jī)理研究[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2012,43(3):123-129. Li Lei, Zhang Ta, Sun Zhijian, Chen Fang, Hu Xiaosong. Survey of Acrylamide Contents in Pu-erh Tea and Study on Its Formation Mechanism[J]. Transactions of the Chinese Society for Agricultural Machinery,2012,43(3):123-129.

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  • 在線(xiàn)發(fā)布日期: 2012-03-17
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