假烟叶树叶挥发油化学成分分析

Chemical Constituents of Essential Oil from Leaves of Solanum verbascifolium(Solanaceae)

采用水蒸汽蒸馏法、两相溶剂萃取法提取,运用毛细管气相色谱-质谱联用法结合计算机检索对茄科植物假烟叶树(Solanum verbascifoliumL.)叶挥发油的化学成分进行分析和鉴定。其新鲜叶片提取10 h的挥发油得率为0.0611%。经毛细管色谱分离出18个峰,共鉴定出17种化合物,占挥发油总量的99.73%;用气相色谱面积归一化法计算各组分的相对含量,其主要化学成分为:大牻牛儿烯D(37.07%),咕巴烯(26.29%),1β-(1-甲基乙基)-4,7-二甲基-1α,2,4a()β,5,8,8a()α-六氢萘(13.63%),石竹烯(8.03%),1-β乙烯基-1-α甲基-2,β4-β双(1-甲基乙烯基)-环己烷(5.81%),-γ榄香烯(2.16%),α-筚澄茄油烯(2.06%),异喇叭烯(0.98%)。以上8种化合物占总挥发油含量的90.22%。

The essential oil from the leaves of Solarium verbascifolium L. was obtained by steam distillation, followed by solvent extraction, and analyzed by capillary GC-MS. The content of essential oil in fresh leaves was 0.0611% after steam distillation 8 hours. Eighteen peaks were detected and 17 compounds were identified, which accounted for 99.73% of the total oil. The main chemical components were germacrene D （37.07%）, copaene （26.29%）, 1β-（1-methylethyl）- 4,7-dimethyl-1α,2,4a（f3）,5,8,8a（α）-naphthalene （13.63%）, caryophyllene （8.03%）, 1 β-ethenyl- 1 or-methyl-2β,4β-bis （1 -methylethenyl）- cyclohexane （5.81%）,γ-elemene （2.16%）, α-cubebene （2.06%） and isoledene （0.98%）, respectively. The above eight compounds accounted for 90.22% of the total oil.