Overview of Microalgae Resources and Research Progress of Bioactivities of Microalgae Polysaccharides
[Objective]Microalgae are diverse,fast-growing and rich in nutrients,making them a rich resource and promising new food ingredient.Microalgae are rich in polysaccharides,and these polysaccharides have a variety of beneficial biological activities,making them useful in food,cosmetics and medicine.Therefore,it is of great significance to understand microalgae resources and clarify the biological activity of microalgae polysaccharides.[Method]The overview of microalgae resources and the biological activities of microalgae polysaccharides were searched by CNKI,Wanfang data,and Science Direct database.[Result]The classification,culture methods and nutritional composition of microalgae is given,and an overview of the methods of isolation and purification,structure,main biological activities and current status of applications of microalgae polysaccharides is given,in the hope of providing a reference for the development of new food ingredients of microalgae and the in-depth and extensive application of microalgae polysaccharides.[Conclusion]The research on the complex composition and fine structure of microalgae needs to be deepened,and the depth and breadth of the application of microalgae polysaccharides still need to be further explored.