摘要
为摸清阴香Cinnamomum burmannii叶片精油及其主要化学成分含量的变异规律,并开展资源评价,选择优良龙脑型单株,为推动天然右旋龙脑产业的发展提供优良种质。研究采用水蒸气蒸馏法提取阴香叶片精油,并利用GC-MS法检测精油化学成分,结果发现阴香叶片精油含量分布于0.00~1.41%,平均含量为0.28%,个体间变异较大,变异系数为100%;GC-MS检测并鉴定出阴香精油化学成分在38~42种之间,检测的182个单株精油中全部均含有龙脑,含量最小值为0.12%,最大值为88.77%,平均含量为38.66%,但樟脑含量少,平均含量仅为0.44%;不同个体第一化学成分有右旋龙脑、桉树脑和石竹烯等15种,不同第一化学成分株数呈倒L型分布,株数最多的前4种化学成分为右旋龙脑125株,占68.68%,其次是桉树脑31株,占17.03%;并列第三是石竹烯和桉油烯醇各4株,各占2.19%;兼顾精油与龙脑含量以经济核算法筛选出优良龙脑型阴香21株,可以用于繁育优质苗木推广应用。
In order to explore the variation regulation of the contents of essential oil and its main chemical components,and carry out resource evaluation of Cinnamomum burmannii in Guangdong province,and select superior trees of d-borneol type,provide excellent germplasm for the development of natural d-borneol industry.In this paper,the hydrodistillation and GC-MS technology were used to extract the essential oil and detect its chemical composition.Results showed that the content of essential oil of C.burmannii was 0-1.41%,the average content was 0.28%,and the coefficient of variation was 100%.38-42 chemical components were detected and identified in the essential oils among 182 plants of C.burmannii.all of the 182 essential oils contained d-borneol,with a minimum content of 0.12%and a maximum of 88.77%.the average content was 38.66%,but the average content of camphor was extremely low,only 0.44%.There were 15 kinds of the first chemical components in different individuals,such as d-borneol,eucalyptol and caryophyllene,etc.The number of plants with different first chemical components showed an inverted L-shaped distribution.The top four chemical components with the largest number of plants were d-borneol,125 plant,accounting for 68.68%,followed by cineole,31 plant,accounting for 17.03%;tied for third is caryophyllene and eucalyptol with 4 plant each,accounting for 2.19%;taking into account both essential oil and d-borneol content,21 superior trees of d-borneol type of C.burmannii were selected by economic accounting method,which could be used to breed and popularize highquality seedlings.
作者
伍观娣
连辉明
张春花
李兵
陈杰连
何波祥
张谦
汪迎利
WU Guandi;LIAN Huiming;ZHANG Chunhua;LI Bing;CHEN Jielian;HE Boxiang;ZHANG Qian;WANG Yingli(Guangdong Provincial Forestry Technology Extension Station,Guangzhou,Guangdong 510173,China;Guangdong Academy of Forestry/Guangdong Province Key Laboratory of Silvicuture,Protection and Utilization,Guangzhou,Guangdong 510520 China)
出处
《林业与环境科学》
2020年第6期88-95,共8页
Forestry and Environmental Science
基金
广东省林业科技创新项目(2018KJCX034,2019KJCX002,2016KJCX001)。
关键词
阴香
精油
化学成分
含量
变异
评价
Cinnamomum burmannii
essential oil
chemical components
content
variation
evaluate