银杏叶挥发油热裂解产物分析及其在卷烟中的应用

摘要

采用同时蒸馏萃取法提取银杏叶挥发性成分,用气相色谱-质谱对挥发油及300,600,900℃热裂解产物进行了分析.结果表明,银杏叶挥发油共分离鉴定出104种化学成分,主要是醉、酮、醛类物质;挥发油在300℃热裂解后共分离鉴定出41种化合物,600℃热裂解后共鉴定出46种化合物,900℃热裂解后共鉴定出84种化合物.单料烟加香的评吸结果表明,银杏叶挥发油能与烟香谐调,提高香气质,增大香气量,余味有所改善.%The essential oil of Ginkgo biloba leaf was extracted by simultaneous distillation and solvent extraction (SDE), its chemical constituents were analyzed by GC-MS and 104 volatile compositions were identified. Alcohols, ketones and aldehydes were the main efficacious ingredients in the essential oil. Pyrolysis products of the essential oil at 300 ℃, 600 ℃ and 900 ℃ were compared, 41 compounds were identified at 300 ℃, 46 compounds were identified at 600 ℃ and 84 compounds were identified at 900 ℃. The essential oil of different concentration was added to cigarette and tasted, the results showed that the essential oil could be harmonized with fragrant of tobacco, improve quality and quantity of aroma.