Ge, Xinyan published the artcileProduction, structure, and bioactivity of polysaccharide isolated from Tremella fuciformis XY, Recommanded Product: (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, the main research area is polysaccharide Tremella fuciformis; Antioxidant activity; Fermentation optimization; Structure characterization; Tremella fuciformis polysaccharide.
Tremella fuciformis polysaccharide (TFP) is an important bioactive substance in Tremella, that contributes to its use as medicine and food. In this study, a novel fungus Tremella fuciformis XY was isolated and introduced to produce macromol. polysaccharides (TFPB). The fermentation conditions were optimized and results demonstrates that the initial pH, optimal temperature and liquid volume were 6.0, 26°C and 80 mL in a 500 mL flask, resp. The maximum yield of TFPB was 9.05 ± 0.05 g/L, which is 59.05% higher than the basic yield (5.69 ± 0.02 g/L). The TFPB, purified by DEAE column, had a mol. weight (Mw) of 1.14 × 103 kDa and consisted mainly of mannose, glucuronic acid, glucose, galactose, xylose, and rhamnose at a molar ratio of 3.5:1.2:2:1.6:1.4:3. The structure of TFPB was preliminarily investigated by methylation anal., IR spectroscopy, and NMR anal. The main linkage types were identified as 1,4-xylp, 1,4-manp, 1-xylp, 1-manp, 1,4-glcp, and 1,3,4-galp. Moreover, the antioxidant assays showed that TFPB could scavenge reactive oxygen species and hydroxyl radicals.
International Journal of Biological Macromolecules published new progress about Growth, microbial. 59-23-4 belongs to class alcohols-buliding-blocks, name is (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, and the molecular formula is C6H12O6, Recommanded Product: (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal.
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