摘要
采用水蒸气蒸馏法从不同季节、不同贮存时间的松针中提取精油,采用GC-MS技术分析了所得精油的化学成分,并进行了成分的对比分析。结果表明,6月份松针精油的得率是0.61%,精油中质量分数较高的成分是α-蒎烯(19.00%)、桧萜(19.61%)、橄香醇(15.38%)、醋酸冰片酯(10.05%),其中总萜烯质量分数达到88.40%,优于其它季节的松针精油。贮存1个月、3个月、6个月、12个月后的干燥松针精油得率分别为0.60%、0.58%、0.53%、0.21%,对应精油中总萜烯质量分数分别为79.93%、76.03%、74.33%、64.97%。随着贮存时间延长,提取精油中单萜烯质量分数降低,含氧萜烯质量分数增高。
Essential oil was extracted by hydro-distillation method from pine needles in different seasons with different storage time and then GC-MS analysis was carried out to determine chemical composition of the essential oil. The yield of pine-needle essential oil gathered in June was 0.61% and the major components of essential oil had the following order; α-pinene （ 19.00 % ）, sabinene（ 19.61% ）, elemol（ 15.38 % ）, bornyl acetate（ 10.05 % ）. Total amount of terpenes in the sample of June exceeded 88.40%, which was the highest among the tested. After storages of 1,3,6, 12 months, oil yields of dry sample were 0.60 %, 0.58 %, 0.53 % and 0.21% , respectively, while the amounts of terpenes in the essential oil were 79.93%, 76.03% , 74.33 % and 64.97% , respectively. With the prolonging of storage time, the concentration of monoterpene in essential oil decreased, whereas the concentration of oxygenated terpene increased.
出处
《林产化学与工业》
EI
CAS
CSCD
2008年第2期115-118,共4页
Chemistry and Industry of Forest Products
基金
2005年度韩国光云大学校内学术研究经费(R01-2005391810)
关键词
松针
精油
贮存时间
pine needles
essential oil
storage time
