Headspace Solid Phase Microextraction Coupled to GC-MS for Analyzing Volatile Components in Paddy

Headspace solid phase microextraction(HS-SPME) was employed for gas chromatography-mass spectrometric(GC-MS) analysis of volatile components in paddy in this study.The optimal HS-SPME conditions such as extraction time, temperature, sample amount and equilibration time were explored prior to quantitative investigations of volatile components in paddy, which were 50 min, 80 ℃, 20 g and 60 min, respectively.The volatile compounds in paddy consisted of alcohols, aldehydes, ketones, esters, hydrocarbons, organic acids, and heterocyclic components, etc.Aldehydes were the main volatile compounds, among which hexanal accounted for the highest percentage at 13.31% in average, followed by nonanal with an average percentage of 7.93%.