Radiation Protection of Carboxymethylation of an Acid Polysaccharides Extracted from Auricularia Auricula against Uvb In Vitro
This paper reports on a water-soluble acid polysaccharide (AAP) and in how it was extracted from Auricularia auricular, acquired by CTAB, and prepared it’s carboxymethylation. Chemical characterization by high-performance liquid chromatography/gel permeation chromatograph (HPLC/GPC), Fourier transform infrared (FT-IR) spectrometer and gas chromatography–mass spectrophotometer (GC–MS) were investigated. Chemical analysis indicated that C AAAP was composed of arabinose, xylose, mannose, glucose and galactose, with the molar ratio at 0.04: 0.13: 1.00: 0.59: 0.29. Moreover, radiation protection against UVB in vitro indicated that at the dose range of 200–500 μg/mL, C AAAP enhanced the protection of HepG2 cells against UVB cytotoxicity than AAAP. However, but at the dose range of 50–150 μg/mL the result was just opposite.
H. Zhang et al., "Radiation Protection of Carboxymethylation of an Acid Polysaccharides Extracted from Auricularia Auricula against Uvb In Vitro", Advanced Materials Research, Vol. 365, pp. 199-204, 2012