两种不同造型工艺对铁观音乌龙茶香气的影响
Tea Science and Technology(2013)
Abstract
以铁观音夏茶新梢,中开面3~4叶为原料,经包揉和压揉两种不同造型工艺制成毛茶,用SPME进行样品香气提取,GC-MS分析,探讨包揉、压揉两种造型工艺对闽南乌龙茶香气品质的影响。结果表明:压揉工艺制出的毛茶香气成分数量多于包揉;包揉工艺制成的毛茶含有较多的醇类组分,而压揉工艺制出的毛茶含有较多的酮类、酯类等羰基化合物组分,毛茶香气品质特征各不相同。这些结果可为今后乌龙茶造型新技术的改进和推广提供依据。
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Key words
aroma,forming,quality,packed rolling,extruded rolling,Tie-guanyin oolong tea
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