Extraction methods and activities of natural glucans

It is reported that natural glucan has many physiological and biological activities based on its special chemical structure. However, the structure-activity relationship of natural glucan is still unclear. This review discussed the extraction, activities and chemical properties of natural glucans. Natural glucan has many powerful biological activities. Natural glucan is considered as a new type of natural medicine, which has significant pharmacological effects compared with common drugs. The market demand and the lack of research and development at home and abroad provide a good opportunity for the deep development and utilization of glucan. With the improvement of preparation technology and the innovation of separation and purification technology, glucan will be more and more widely used in the field of food industry.