Determination of total esters in liquor?

Total esters are the general name of various esters in liquor, and they are important aroma and taste substances in liquor, mainly including ethyl acetate, ethyl lactate, ethyl caproate, ethyl valerate and other components. Total ester analysis is an important test item in liquor, and it is also one of the important indexes to judge whether liquor is qualified or not. Ethyl lactate, ethyl acetate and ethyl caproate are three main esters in liquor, accounting for more than 90% of the total esters. Total esters = the sum of hundreds of esters. The total ester is determined by chemical analysis, and the error is large. Various monoesters were determined by chromatograph, and the results were obtained at the same time, with high accuracy. The higher the total ester, the more fragrant the liquor. The content and proportion of several monoesters can distinguish the flavor types of liquor to some extent. Ethyl acetate plays a leading role in the process of fragrance presentation, and other esters play a foil role in the process of fragrance presentation.