摘要
Some polysaccharides isolated from natural sources show various important biological activities including antitumor, and are known to act as immunomodulators and specifically, antioxidants. These activities are strongly affected by their chemical structures and chain conformations. This article reviewed the current literature on the antioxidant properties of some important bioactive polysaccharides isola-ted from natural sources,, including plants, microorganisms, algae and animals. Possible antioxidarlt mechanisms of polysaccharides are also summarized. The continuing evaluation of bioactive polysaccharides provides a unique opportunity for the discovery of novel pharmaceuticals and healthcare products that exhibit beneficial antioxidant properties.
Some polysaccharides isolated from natural sources show various important biological activities including antitumor, and are known to act as immunomodulators and specifically, antioxidants. These activities are strongly affected by their chemical structures and chain conformations. This article reviewed the current literature on the antioxidant properties of some important bioactive polysaccharides isola-ted from natural sources,, including plants, microorganisms, algae and animals. Possible antioxidarlt mechanisms of polysaccharides are also summarized. The continuing evaluation of bioactive polysaccharides provides a unique opportunity for the discovery of novel pharmaceuticals and healthcare products that exhibit beneficial antioxidant properties.
基金
supported by the Gansu province scientific support project,China(0708NKCA082,090NKCA070)
the agricultural biotechnology industrialization projects of Gansu province,China(GNSW-2007-12)
