缙云山亮叶桦叶片精油GC-MS鉴定及挥发性成分应用分析

GC-MS Analysis of Volatile Substances of Essential Oil in Fresh Leaves of Betula luminiferain the Jinyun Mountains and Their Application

对重庆乡土植物资源亮叶桦叶片精油组分进行了GC-MS鉴定和挥发性成分应用分析,采用水蒸气蒸馏法进行缙云山野生亮叶桦叶片精油分离提取,采用气相色谱-质谱联用仪(GC-MS)法进行叶片精油挥发性成分组成鉴定,结合文献检索对其主要挥发性成分的应用方向和开发潜力进行分析阐述.结果表明:从缙云山亮叶桦叶片精油中分离鉴定出挥发性成分61种,以酯类、醇类、烷烃、烯烃、羧酸类化合物为主,其中水杨酸甲酯、芳樟醇、植物醇、香叶醇是其主要组分,具有产业化开发价值.重庆乡土植物资源亮叶桦是对人体健康非常有益的新型绿化树种,其叶片精油也是新型精细化工原料,具有较高的开发和推广价值.

Objective：To analyze the volatile substances of the essential oil in the leaves of Betula luminifera,an indigenous plant species in the Jinyun mountains of Chongqing,and to study their possible applications so as to establish a scientific basis for the industrialized development and application of this wild plant species.Methods：The essential oil was extracted with steam distillation from the leaves of B.luminifera plants growing in the Jinyun mountains,and the volatile substances in it were analyzed and identified with GC-MS.The application and development potentials of the volatile substances were described and analyzed through literature retrieval.Results：A total of 61 volatile aromatic substances were separated and identified,mainly including esters,alcohols,alkanes,alkenes and carboxylic acids,and methyl salicylate,linalool,phytol and geraniol were the main components,which were of the value of industrial development.Conclusion：B.luminiferais a new greening tree species,which is beneficial to human health and the essential oil in its leaves is a new fine chemical raw material.Hence it is of considerable value of development and extension.