摘要
采用水蒸气蒸馅法提取测定龙脑型阴香叶片精油含量,并用气质联用法检测分析2018全年各月精油中主要化学成分的含量变化。研究结果发现,全年各月精油所含化学成分主要为次生代谢产物,有3040种,主要为菇烯类、菇醇类和酯类化合物;不同月份精油及右旋龙脑含量分别达极显著和显著差异;而不同季度中精油含量达极显著差异,右旋龙脑含量无显著差异,表明选择合适的月份/季节采收枝叶,可以显著提高精油和右旋龙脑的产量。多重比较显示1012月(冬季)精油含量最高,右旋龙脑含量在79月(秋季)最高。综合精油和右旋龙脑含量两个因素测算,建议在冬季(即1012月)进行枝叶采收可以提高经济效益。精油中非右旋龙脑成分含量年度内在44.27%71.00%之间,具有相当的比重,含量较高的化学成分如檢树脑等均是医药、日化等化工产品的重要原料,综合开发利用校树脑等重要成分,可提高收益。
The essential oil of the leaves of Cinnamomum burmannii chvar.Borneol was extracted by steam distillation,and the change of oil content and main chemical components in each month of 2018 was detected and analyzed by GC-MS.The results showed that the chemical composition of essential oil was mainly secondary metabolites about 30-40 kinds,mainly terpenes,terpenols and esters;the content of essential oil and D-bomeol in different months showed very significant and significant differences,while the content of essential oil in different seasons showed very significant differences,but the content of D-bomeol had no significant difference,so that the yield of essential oil and D-bomeol could be significantly increased by selecting the appropriate month/season for harvesting branches and leaves.Multiple comparisons showed that the content of essential oil was the highest from October to December(winter),but the content of D-bomeol was the highest from July to September(Autumn).According to the estimation of essential oil and D-bomeol content,it is suggested that the economic benefits can be improved by harvesting branches and leaves in winter(from October to December).The content of non-d-bomeol composition in essential oil is between 44.27%and 71.00%in different months,which has a considerable proportion.These chemical components with higher content,such as 1,8-cineole,are important raw materials in medicine,daily chemical industry and chemical industry.We should pay attention to development and utilization of 1,8-cineole and other important components as by-products to improve the income.
作者
黄浩
连辉明
何波祥
汪迎利
陈桂琼
梁东成
陈新强
罗万业
林胜
凌凤清
HUANG Hao;LIAN Huiming;HE Boxiang;WANG Yingli;CHEN Guiqiong;LIANG Dongcheng;CHEN Xinqiang;LUO Wangye;LIN Sheng;LING Fengqing(l.meizhou forestry reaseach institute,meizhou,guangdong 510225,china;guangdong provincial key laboratory of silvicuture,protection and utilization/guangdong academy of forestry,guangzhou,guangdong 510520 china;guangdong huaqingyuan biotechnology co.ltd,pingyuan,guandong 514600,china)
出处
《林业与环境科学》
2019年第6期22-26,共5页
Forestry and Environmental Science
基金
广东省林业科技创新项目(2016KJCX001,2019KJCX002)
广东省科技计划项目(2015B020202001)
关键词
龙脑型阴香
精油含量
化学成分
动态变化
Cinnamomum burmannii chvar.D-bomeol
essential oil content
chemical constituents
dynamic change
