Approximately 30 compounds have been identified in the aroma of green tea, the major ones being benzyl alcohol, phenylethyl alcohol, a hexenol, linalool, geraniol and methyl salicylate.

约有30种已从绿茶香气中鉴别出来，其中主要有苯甲醇、苯乙醇、已烯醇、沉香醇、香茅醇和甲基水杨酸酯。

Betulin and betulinic acid, the triterpenes of the lupane family, are considered to be potential agents against tumoral cancer and HIV .

桦醇、桦酸是具有羽扇烷结构三萜，目前研究发现，它具有较高抗肿瘤、抗HIV病毒活性，它生也有较高生活性。

To continue the natural identified chemical after that,we have found that 4-(4-hydroxyphenyl)-2-butanol(Rhododendrol:RD)inhibited the melanin synthesis more than Arbutin did.

我在探索天然过程中,发现4-(4-羟苯基)-2-丁醇(杜鹃醇:以下简称RD)抑制黑色素成作用比熊果苷更强。