主要啤酒老化物质的来源与控制

The origin and control of main beer staling substances

综述了主要啤酒风味老化物质是5-羟甲基糠醛(5-HMF)与反-2-任烯醛的来源、检测方法,以及啤酒生产过程中控制其含量的措施。

There are a lot of substances which have bad effects on beer flavour and flavour stability , and roost important and typical staling substances are trans - 2 - nonenal and 5 - hydroxymethyl furfural (5-HMF) . A correlation exists between the organoleptically determined degree of staling flavor in beer and 5 - HMF , as well as trans - 2 - nonenal . This suggests that controlling 5-HMF and trans - 2 - nonenal formation during brewing might provide useful clues for improving the flavor stability of beer . Various experimentB performed to control the levels of 5 - HMF and trans-2 - nonenal show that active oxygen and low pH in a finished beer enhance the formation 5 - HMF and trans -2 - nonenal during storing .