Shu, Xu; Zhang, Yanfen; Jia, Jinxia; Ren, Xiaojie; Wang, Yufeng published the artcile< Extraction, purification and properties of water-soluble polysaccharides from mushroom Lepista nuda>, COA of Formula: C6H12O6, the main research area is Lepista water soluble polysaccharide; Antioxidant; Extraction; Lepista nuda; Polysaccharide; Purification.
Lepista nuda has high nutritional and medicinal value, especially has high antioxidant, antitumor and antiviral activities. Based on results of single factor experiment, response surface methodol. was used to optimize the extraction conditions of polysaccharides (LNP). Macroporous resin D301 was used to decolorization, and its technol. conditions were determined by orthogonal experiment In addition, two novel polysaccharides (LNP-1, LNP-2) were purified by DEAE Cellulose-52 and Sephadex G-150 chromatog. The mol. weight of LNP-1 is 11,703 Da, mainly composed of mannose, glucose, galactose, xylose, arabinose and fucose, while the mol. weight of LNP-2 is 13,369 Da, mainly composed of mannose, glucose, galactose, arabinose and fucose. The polysaccharide contents of crude LNP, LNP-1 and LNP-2 were 70.60%, 87.71% and 81.20% resp., and the protein contents were 1.72%, 0.97% and 0.68% resp. Their sulfuric contents were 3.39%, 5.02% and 8.64%, and uronic acid contents were 3.66%, 5.56% and 6.80%, resp. Further studies showed that their ability to chelate iron ions, scavenge DPPH (1,1-diphenyl-2-picrylhydrazyl) free radicals and scavenge superoxide anion radicals were 70.09%, 55.94% and 36.64% resp. They showed strong ability to scavenge free radicals in a concentration-dependent manner. LNP is expected to be developed as a new efficacy factor in the food industry.
International Journal of Biological Macromolecules published new progress about Cyclocybe cylindracea. 3458-28-4 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H12O6, COA of Formula: C6H12O6.
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