Abstract

The hydrodistilled volatile essential oils extracted from the female cones of Cupressus arizonica Greene that harvested in winter and spring seasons were analysed for their chemical composition by using gas chromatography-mass spectrometry (GC/MS). Twenty-four and seventeen components were identified, accounting for winter (95.5%) and spring (96.9%) of the total oils volume, respectively. Monoterpenoids (winter 93.7% and spring 95.0%) dominated the identified components in the essential oils, followed by a small portion of sesquiterpenoids (winter 1.8% and spring 1.9%). Monoterpene hydrocarbons (MH) (winter 90.9% and spring 94.9%) were the principal subclasses of components with α-pinene (winter 42% and spring 72%), β-myrcene (winter 18.5% and spring 7.7%), δ-3-carene (winter 11.3% and spring 5.1%), limonene (9.4% for winter), and β-pinene (5.3% for spring) as main constituents. Limonene (9.4%), camphor (0.2%), exo-methylcamphenilol (0.2%), terpinene-4-ol (0.6%), β-citronellol (0.9%), and bornyl acetate (0.3%) were representative of the monoterpene hydrocarbon and oxygen-containing monoterpenoids (OM) in winter essential oil.

摘要

从亚利桑那柏木雌球果中提取的水蒸馏挥发性精油采用气相色谱-质谱法 (GC/MS) 分析冬春季节收获的 Greene 的化学成分。鉴定出 24 种和 17 种成分，分别占冬季（95.5%）和春季（96.9%）的油类总量。单萜类化合物（冬季 93.7%，春季 95.0%）在精油中的已鉴定成分中占主导地位，其次是小部分倍半萜类化合物（冬季 1.8%，春季 1.9%）。单萜烃（MH）（冬季90.9％和春季94.9％）是α-蒎烯（冬季42％和春季72％）、β-月桂烯（冬季18.5％和春季7.7％）、δ-3的主要亚类。主要成分为蒈烯（冬季11.3%，春季5.1%）、柠檬烯（冬季9.4%）、β-蒎烯（春季5.3%）。柠檬烯 (9.4%)、樟脑 (0.2%)、exo-甲基莰醇（0.2%）、萜品烯-4-醇（0.6%）、β-香茅醇（0.9%）和乙酸龙脑酯（0.3%）是冬季精油中单萜烃和含氧单萜（OM）的代表。