作者:Regula Naef、Alaini Jaquier、Alain Velluz、Bruno Maurer
DOI:10.1021/jf061738o
日期:2006.11.1
The volatile constituents of two exquisite green tea varieties, Kiyosawa tea from Japan and Long Jing tea from China, were investigated in order to identify new compounds responsible for the characteristic flavor of a green tea brew. The extracts were prepared by solid-phase extraction using Oasis-HLB-cartridges. Besides the common compounds of green tea chemistry, the already described compounds 3-methyl-2
研究了两种精美的绿茶品种(日本的清泽茶和中国的龙井茶)的挥发性成分,以鉴定出引起绿茶冲泡特有风味的新化合物。提取物是使用Oasis-HLB-弹药筒通过固相提取制备的。除了常见的绿茶化学化合物外,已经描述的化合物3-甲基-2,4-壬二酮(1)和3-羟基-3-甲基-2,4-壬二酮(2)是呋喃脂肪酸降解的产物。 ,以及与化合物1有关的三个新化合物。它们是1-甲基-2-氧代丙基己酸酯(3),1-甲基-2-氧代庚基乙酸酯(4)和2-丁基-4,5-二甲基-3(2H)-呋喃酮(5)。报告了它们的合成和光谱数据。化合物2增加了甜味,