Study on resveratrol from red skin of peanut by alkaline extraction method

Research has been carried out on the alkaline extraction of resveratrol from the red skin of peanuts.The pH value,extraction temperature,extraction time and extraction times were studied respectively by single factor and orthogonal experiment.The result showed the optimum conditions were as follows:pH value 10.0,extraction temperature 40℃,extraction time 2h and the number of extraction times 4,under this condition,the extraction yield of resveratrol could reach as high as 0.196%.