杉木根精油得油率和柏木醇含量比较分析  

Comparative Analysis on Oil Yield and Cedrol Content of Essential Oils from Cunninghamia lanceolata Roots

作　　者：秦荣秀[1] 李桂珍[1] 梁忠云[1] 黄开勇[1] Qin Rongxiu;Li Guizhen;Liang Zhongyun;Huang Kaiyong(Guangxi Forestry Research Institute,Guangxi Key Laboratory of Superior Timber Trees Resource Cultivation,Nanning,Guangxi 530002,China)

机构地区：[1]广西壮族自治区林业科学研究院广西优良用材林资源培育重点实验室,广西南宁530002

出　　处：《广西林业科学》2021年第3期347-350,共4页Guangxi Forestry Science

基　　金：广西科技重大专项(桂科AA17204087-2);广西“新世纪十百千人才工程”专项资金项目(桂科财字[2019]41号);广西林业科技项目(桂林科字[2012]10号)。

摘　　要：为筛选得油率和柏木醇含量高的杉木(Cunninghamia lanceolata)种质,对25年生杉木不同部位和不同单株根精油进行提取,采用GC和GC-MS法对提取的精油进行定性和定量分析。结果表明,杉木不同部位根精油的得油率和柏木醇含量差异较大,精油几乎全部集中在心材部位,在以含油量为目标进行品种选育时,应采用心材得油率为主要参考指标;不同单株根精油的得油率和柏木醇含量差异也较大,根精油的绝干得油率和柏木醇含量最大可相差7.71和8.94倍,在资源丰富的杉木群体中筛选出含油率和柏木醇含量高的品系存在可能。In order to select Cunninghamia lanceolata germplasm with high oil yield and cedrol content,essential oils were extracted from different parts and individuals of 25-year-old C.lanceolata roots,which were qualitatively and quantitatively analyzed by GC and GC-MS.Results showed that oil yield and cedrol content in essential oils from different parts of roots were obviously different,which were almost completely concentrated in heartwood.If oil content was the target of variety breeding,oil yield of heartwood should be selected as main reference index.There were also significant differences in oil yield and cedrol content of essential oils from roots of different individuals.The largest differences of absolute dry oil yield and cedrol content was 7.71 and 8.94 times.It was possible to select varieties with high oil yield and cedrol content in resourceful C.lanceolata population.

关 键 词：杉木根精油 GC和GC-MS法 得油率 柏木醇 

分 类 号：S791.27[农业科学—林木遗传育种]