摘要：An important part of the aroma compounds found in beer is formed by yeast during alcohol fermentation. Yeast strain and fermentation conditions are effective on the aroma compounds. Apart from these, major sources of beer flavor, raw materials used (malt, hops), applications prior to fermentation (kilning, boiling) and storage conditions. In this review, the aroma compounds in beer are given by grouping according to their chemical structures (higher alcohols, esters, organic acids, carbonyl compounds, nitrogenous compounds, sulphur compounds) and are emphasized their formations, amounts and thresholds.
