Determination of the Volatile Constituents in Banana Flowers and Bracts by Headspace Solid-Phase Microextraction and Gas Chromatography - Mass Spectrometry

摘要

The volatile constituents in banana flowers and banana bracts were analyzed by gas chromatography-mass spectrometry, coupled with headspace solid-phase microextraction. A quantitative analysis in percent was performed by peak area normalization measurements. 31 compounds were identified in banana flowers accounting for 97.78% of the total volatiles and 16 compounds were identified in banana bracts accounting for 93.54% of the total volatiles. Nonanal was the highest ingredient in banana flowers and banana bracts (72.67% and 48.77%, respectively). The two herbs have 11 mutual compounds, accounting for 91.79% and 90.62% of total volatile components in banana flowers and bracts, respectively. Some of volatile compounds in two herbs with high concentration were hexanal, 2-pentyl-furan, octanal, isoamyl butyrate, nonanal. The study could provide a method to indentify and compare the difference of the volatile components in the flowers and bracts.