Extracting method of algae polyphenol

The invention provides an extracting method of algae polyphenol. The method comprises the following steps that 1.000 g of seaweed powder is weighed, 25 mL of deionized water is measured to dissolve the seaweed powder in a flat-bottom beaker, the flat-bottom beaker containing a seaweed solution is put into a multi-frequency compound ultrasonic experimental device, and co-strengthening is conducted for extracting the algae polyphenol, wherein the extraction time ranges from 15 min to 40 min, and the extraction temperature ranges from 20 DEG C to 40 DEG C; an extracted solution is subjected to centrifugal filtration and vacuum drying, and algae polyphenol powder is obtained. The extracting method of the algae polyphenol has the advantages that the method is efficient, low in cost and high in applicability, and automation and continuity are easy to achieve. 本发明提供了种海藻多酚的提取方法，依次包括以下步骤：称取1.000g 海藻粉末，量取25mL去离子水将海藻粉末溶解于平底烧杯中，将盛放有海藻溶液的平底烧杯置于多频复合超声实验装置中进行协同强化提取海藻多酚，提取时间为15～40min，提取温度为20～40℃，提取溶液经离心过滤和真空干燥后，即得海藻多酚粉末。本发明具