Research of the effect of electron beam irradiation to aroma components in liquor

Ultraviolet Absorption Spectrum and Gas Chromatogram were used to analysis the effect of aroma components in Luzhou Laojiao 1573 liquor after electron beam irradiation.Results indicated that absorbance values were decline and the spectral similarities were decrease from 284nm to 300nm.56 kinds of aroma components were detected by Gas Chromatogram and 41 kinds of aroma components accounted for 73% of all had changed.On the whole, the main aroma components of esters contents were declined and acids contents were rose in 1573 liquor.This result showed that the changes of esters and acids in 1573 liquor which were irradiated by electron beam had the same tendency of natural aging of other Luzhou-flavor liquors.