Analysis of Pyrolysis Constituents in Essential Oil of Ginkgo biloba Leaves and its Application in Cigarettes

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.