浅析浓香型白酒新标准的难适用性

Analysis of the Serviceability of New Standards of Luzhou-flavor Liquor

新发布的浓香型白酒国家标准GB/T10781.1-2006扩大了低度浓香型白酒的酒精度范围,为25%vol～40%vol,其总酸、总酯、己酸乙酯等理化指标作了相应了调整。但根据现在市场上销售的28%vol、33%vol的浓香型白酒检测结果看,其理化指标很难达到浓香型白酒新国标要求。经对2002～2006年28%vol、33%vol和38%vol低度白酒理化指标分析,发现低度浓香型白酒的水解反应特别严重,随着贮存期的延长,总酸会增高,总酯、己酸乙酯会成倍降低,28%vol、33%vol贮存不到一年就会低于新国标,建议将新浓香型白酒标准中的总酯、己酸乙酯等理化指标作相应的调整。

New national standards GB/T10781.1-2006 for Luzhou-flavor liquor have expanded alcohol content range for low-alcohol Luzhou-flavor liquor between 25%vol-40 %vol. Besides, the physiochemical indexes including total acids, total esters and ethyl caproate etc. have been readjusted. Through the examination of 28 %vol and 33 %vol Luzhou-flavor liquors in the market, it was found that their physiochemical indexes could hardly meet the requirements of the new national standards. Through the analysis of the physiochemical indexes of 28 %vol, 33 %vol and 38 %vol low-alcohol Luzhou-flavor liquors, it was found that serious hydrolysis happened in the liquors, and the content of total acids would increase and the content of total esters and ethyl caproate would reduce greatly with the extension of storage time. As the storage time was less than one year, the physiochemical indexes of 28 %vol and 33 %vol liquors were lower than that in new national standards. Accordingly, it was recommended that the physiochemical indexes such as total esters and ethyl caproate should be readjusted correspondingly in the new national standards. （Tran. by YUE Yang）