The Study on Total Phenol and Antioxidant Activities of Garlic Extracts

In this paper,ultrasonic-assisted extraction was used to extract activated components from garlic by water,50% ethanol,water including cellulase and 50% ethanol including cellulase,respectively.The total contents of phenol from the extracts was determined using Folin-Ciocalteu method and the clearing ability of the extracts on DPPH.,.OH and O2 was studied.The results indicated that under ultrasonic radiation,using water,50% ethanol,water including cellulase or 50% ethanol including cellulase as extractants,the total contents of phenol was 112.7 mg,102.4 mg,171.1 mg and 130.8 mg per 100 g garlic,respectively.All four extracts had strong clearing ability on DPPH.,.OH and O2,which showed they had strong anti-oxidant capacity.In conclusion,the anti-oxidation ability is proportional to the total phenol contents of the garlic extracts.