Analysis of Flavor Characteristics of Organic Acids in Zhenjiang Aromatic Vinegar
Organic acid composition of Zhenjiang aromatic vinegar and its contribution to the flavor of vinegar are analyzed.The results show that 9 organic acids existed in 22 vinegar samples,with the total organic acids content of 4806.0~7204.1 mg/dL.Acetic acids and lactic acids are the majority of organic acids in vinegar (>75%),while the content of citric acid,α-ketoglutaric acid and pyruvic acid varies greatly among different samples.The results of sensory analysis show that acetic acid,lactic acid,citric acid,pyroglutamic acid and succinic acid possess strong flavor intensity and significantly influence the flavor of Zhenjiang aromatic vinegar.