Hydroxyl free radical scavenging ratio was used to evaluate the antioxidant activity of the vine tea liquor.To find the optimal brewing condition,the efect of brewing time,brewing times,brewing temperature and brewing water quality on hydroxyl radical scavenging activity of vine tea liquor was studied by salicylic acid method,and the antioxidant activities of vine tea and green tea were also compared.Meanwhile,the pyrogallol autoxidation assay was used to evaluate the antioxidant activity of vive tea by suppressing the superoxide anion free rad...