Studies on Hydrolysis Process of Spirulina Polysaccharide
This work used ultrasound aided Spirulina polysaccharide extraction to increase the antioxidant activity and extraction rate of Spirulina polysaccharides.The extraction procedure was adjusted by orthogonal studies,which were based on single factor trials.The in vitro antioxidant activity of Spirulina polysaccharides extracted under optimal circumstances was then assessed.The results indicate that the optimal extraction process is pH=11,liquid-solid ratio 40∶1,70℃hot water extraction for 5 h.The extraction rate of Spirulina polysaccharide under these ideal circumstances is 8.03%.Spirulina polysaccharide's DPPH scavenging capacity and reducing power were assessed,and the findings indicated that the polysaccharide possesses some antioxidant action.
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