Sulfated modification enhanced the antioxidant activity of Mesona chinensis Benth polysaccharide and its protective effect on cellular oxidative stress

The effect of sulfated modification on the physicochemical properties and antioxidant activities of polysaccharide (MP) from Mesona chinensis Benth were investigated by chemical methods, Fourier transform infrared spectroscopy, high performance anion exchange chromatography, and establishing oxidative stress model and free radical model. Results showed that sulfated modification caused a significant change in chemical composition and the...