Research progress on control of acetaldehyde in beer

Acetaldehyde is one of the most important flavor ingredients in beer.Excess acetaldehyde produces a grassy or apple-like off-flavor.One target of beer production is to produce the beer with low acetaldehyde content.It was summarized about the properties of acetaldehyde,the metabolism of acetaldehyde in Saccharomyces cerevisiae during fermentation and aging,the factors impacting acetaldehyde content in beer,and some research progress on acetaldehyde content control.