关键词: 大型海藻, 多糖, 提取, 生物活性, 应用领域, large-scale marine algae, polysaccharides, extract, biological activity, application field

Abstract: With the upgrading of science technology and the change of consumer's concept, the research of the large-scale marine algae is becoming more and more intensive, and the seaweed polysaccharide as an important component of the seaweed is the focus and key point of the research in recent years. In this paper, methods of water extraction, alcohol extraction, acid alkali extraction, enzyme extraction, ultrasonic assisted extraction and microwave assisted extraction of polysaccharides from marine algae were reviewed, and the immune regulation, anti-tumor, antiviral, hypoglycemic, blood lipid and antioxidant activity of marine algal polysaccharide were detailed described. The application of seaweed polysaccharides in biological medicine, food and cosmetics fields were introduced, the focus of future research direction, to provide a reference for the development and utilization of seaweed high value.