Study on influencing factors content of ethyl carbamate in Chinese rice wine

The objective of this study was to investigate the distribution characteristics of ethyl carbamate( EC)content in Chinese rice wine and the main influencing factors. A gas chromatography- mass spectrometry( GC-MS) mothod was established for the determination of EC content in Chinese rice wine.The influencing factors including storage temperature,light,and different raw materials were studied. The results showed that the longer the rice wine storage in the year,the higher the content of EC.And the higher the storage temperature,the greater the incensement of EC content. Meanwhile,the EC content in Chinese rice wine were incresed by 1.24,2.13 and2.56 μg / L per month respectively at the storage temperature of 0,15,30 ℃ and the EC content were even increased more with the light treatment. Futhermore,different EC content was found in the Chinse rice wine from different raw materials.