Determination of short chain fatty acids isomers, the sensory active products of hops aging, in beer.
Important products of hop aging are the C4 and C5 isomers of short chain fatty acids; namely 2-methyl propionic acid (isobutyric acid), 2-methyl butyric acid and 3-methyl butyric acid (isovaleric acid).These acids are sensory active and moreover, after the esterification during beer production they can provide further sensory active compounds contr