Medicinal Plant

2013, v.4(09) 1-5

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Extraction Technology of Polysaccharides from Gracilaria lamaneiformis and Its Antioxidation Research
Extraction Technology of Polysaccharides from Gracilaria lamaneiformis and Its Antioxidation Research

Hua YANG;Qingqing MEI;Xiangyang QI;Hui'en ZHANG;

摘要(Abstract):

[Objective]To select the extraction technology of polysaccharides from Gracilaria lamaneiformis and to investigate its antioxidation.[Methods]The extraction technology of polysaccharides from G.lamaneiformis and its antioxidation were researched by response surface method.The microwave-assisted extraction of polysaccharides from G.lamaneiformis was optimized based on response surface method.[Results]The optimal extraction technology of microwave-assisted extraction was as follows:495 W microwave power,1∶100 solid-liquid ratio and17 min extraction time.Under this condition,the extraction rate of polysaccharides from G.lamaneiformis was 33.11%.The regression equation of the extraction rate of polysaccharides from G.lamaneiformis(Y)was Y=22.00+6.78A+1.15B+3.63C+0.82AB+2.97AC+0.37BC-0.52A2-1.86B2-2.26C2.Results of the antioxidation of polysaccharides showed that polysaccharides had certain clearance effects on DPPH free radical.[Conclusion]This optimized model had extremely significant regression and relatively good fitting,which was of certain application value

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基金项目(Foundation): Supported by the Special Science and Technology Fund of Ningbo Ocean and Fishery Bureau(Yonghai 200769);; the Young Academic Leaders Projectin Zhejiang Province(2013)

作者(Author): Hua YANG;Qingqing MEI;Xiangyang QI;Hui'en ZHANG;

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