摘要
研究了岳阳平江产宽、窄叶型迷迭香鲜叶精油的产量及其化学组成,采用水蒸气蒸馏法提取了迷迭香鲜叶精油,利用GC-MS技术确定了精油的化学组成。1周年内的逐月跟踪研究表明:岳阳平江产窄叶型迷迭香鲜叶精油的干基得率为3.447%,精油产量高于宽叶型鲜叶;鲜叶精油产量与环境气温之间存在显著的正相关性,采收鲜叶以7月~9月份为佳;采收时间不影响精油的化学成分,但会引起各成分含量的变化;同时采收的宽、窄叶型迷迭香鲜叶精油所含的化学成分及其含量均存在一定差异,但两种精油中的主要成分基本相同,均以旷蒎烯、莰烯、1,8-桉叶油素、龙脑、樟脑、马鞭烯酮、乙酸龙脑酯、松油醇和β-芳樟醇为主;岳阳平江产宽、窄叶型迷迭香鲜叶精油的化学类型分别属于西班牙型和突尼斯一摩洛哥型。
The yield and chemical composition of the essential oil from the broad-type and the narrow-type Rosrnarinus officinalis L. fresh leaves planted in Pingjiang County are studied. The steam distillation method and the GC-MS technology are adopted to extract the essential oil and to determine its chemical composition respectively. Through the monthly tracing research in a whole year, some useful results are obtained as follows: the yield in dry basis of the essential oil from the narrow-type Rosmarinus officinalis L. fresh leaves planted in Pingjiang County is up to 3. 447%, higher than the broad-type ones. so the optimum harvesting time The yield of the essential oil is of the fresh leaves is between proportional to the air temperature, July and September per year. The harvesting time of the fresh leaves has no influence to the chemical components in the essential oil, but so does the content of every component. The chemical components and their content are both different between the essential oil from the broad-type Rosmarinus officinalis L. fresh leaves and the narrow-type ones harvested simultaneously, but the main components in the two kinds of essential oil are almost the same as a-pinene, camphene, 1, 8-cineole, borneol, camphor, verbenone, bornyl acetate, terpineol and β-linalool. The chemical type of the essential oil from the broad-type and the narrow-type Rosmarinus officinalis L. fresh leaves planted in Pingjiang County is Spanish type and Tunisian and Moroccan type respectively.
出处
《中国调味品》
CAS
北大核心
2016年第1期42-46,共5页
China Condiment
基金
2015年湖南省重点研发计划项目(2015NK3023)
2014年国家级大学生创新创业训练计划项目(教高司函[2014]58号)
2014年度湖南省大学生研究性学习和创新性实验计划项目(湘教通[2014]248号)
2014年度中南林业科技大学大学生研究性学习和创新性实验计划项目(中南林发[2014]33号)
关键词
平江
迷迭香
鲜叶
精油
产量
化学组成
Pingjiang County
Rosmarinusofficinalis L.
fresh leaves
essential oil
yield
chemical composition