Study on microwave- assisted extraction and the antioxidant activities of polysaccharide from Russula vesca
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Graphical Abstract
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Abstract
The microwave extraction process of polysaccharide from russula vesca and antioxidant activity of PAP was also studied. The effect of solid- liquid,microwave times and microwave power on content of PAP were investigated.Orthogonal test was carried out on the basis of single- factor experiments to determine the optimum process parameters.Additional,the reducing power of PAP and the clearance effect of OH·,NO-2and O-2·were investigated. The optimize extraction process conditions as follows: extracting time 7min,the ratio of solid to liquid1∶40( g / m L),microwave power 500 W,and that crude polysaccharide yield was up to 7.82%.Furthermore,the PAP had better reducing power and had strong abilities to scavenge ·OH,NO-2and O-2·.Although the antioxidant activity of PAP from russula vesca was weaker than VC,but it could be used as a potential natural antioxidant in the food industry.
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