Efficient extraction, antioxidant activities and anti-inflammation of polysaccharides from Notopterygium franchetii Boiss

To optimize the extraction of polysaccharides from Notopterygium franchetii Boiss (NFP), microwave-assisted aqueous two phase system (MAATPS) and response surface methodology (RSM) were employed. Results showed that the optimum conditions of MAATPS were as follows: ethanol concentration of 32 % (w/w), (NH4)2SO4 concentration of 24 % (w/w) and extraction time of 15 min. Under such condition, YS (the recovery of polysaccharides) was 80.57 % with...