Volatiles in Buds and Flowers of Forsythia suspense
The volatile constituents from the buds and flowers of Forsythia suspense were analyzed by head-space solid phase microextraction,coupled with GC-MS. Eighty-three compounds were identified from the buds and flowers of F. suspense,and 40 compounds were mutual. Hydrocarbons (41.04%) were the main constituents in the buds and alcohols,aldehydes and ketones (26.46%) were dominant in the flowers. Esters decreased from 8.11% in buds to 2.12% in flowers ,and acids increased from 3.56% in buds to 5.18% in flowers. It indicated that esters were hydrolyzed into acids with blooming.