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Isolation and Purification of a Polysaccharide from the Caterpillar Medicinal Mushroom Cordyceps militaris (Ascomycetes) Fruit Bodies and Its Immunomodulation of RAW 264.7 Macrophages
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2014
Year
Food FunctionBiomanufacturingNovel PolysaccharideMedicineImmunologyGlycobiologyMedicinal FungiWater-soluble PolysaccharidePolysaccharideFruit BodiesMicrobiologyNatural Immunostimulating PolysaccharideFood PreservativesRaw 264.7
A novel polysaccharide (CP2-S) was purified from Cordyceps militaris fruit bodies by hot water extraction, ethanol precipitation, DEAE-Sepharose Fast Flow and Sephacryl S-400 high-resolution chromatography. The polysaccharide had a molecular weight of 5.938 × 106 g/mol and was mainly composed of glucose. CP2-S had carbohydrate content estimated to be 100% using the phenol-sulfuric acid method. Immunostimulating experiments in vitro indicated that CP2-S could stimulate nitric oxide production, phagocytosis, respiratory burst activity, and secretion of interleukin-1β and interleukin-2 of macrophages, suggesting that this water-soluble polysaccharide from the fruit body of C. militaris is a natural immunostimulating polysaccharide with potential for further application.