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标题：Extraction optimization and antioxidant activity of Phyllanthus urinaria polysaccharides
其他标题：Extraction optimization and antioxidant activity of Phyllanthus urinaria polysaccharides
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作者：LIU, Yong ; LI, Sui-Min
期刊名称：Food Science and Technology (Campinas)
印刷版ISSN：0101-2061
电子版ISSN：1678-457X
出版年度：2021
卷号：41
页码：91-97
DOI：10.1590/fst.11320
出版社：Sociedade Brasileira de Ciência e Tecnologia de Alimentos
摘要：Three extraction parameters including extraction time, material to solvent ratio, and extraction temperature for the extraction yield of Phyllanthus urinaria polysaccharides were optimized by response surface methodology. The results revealed that the optimal extraction process was extraction time of 5.3 h, extraction temperature of 93 °C, and material to solvent ratio of 1:47 g/mL, under which the polysaccharide yield was 6.40%; The three parameters had significant effect on the polysaccharide yield, and the influence of extraction time was the greatest and that of extraction temperature was the lowest. The antioxidant activity test indicated that the equivalent scavenging ability of Phyllanthus urinaria polysaccharides on DPPH and ABTS free radicals was 0.88 and 0.84 μg TBHQ/μg of polysaccharides, respectively; while the reducing power and total antioxidant capacity of Phyllanthus urinaria polysaccharides was equivalent to 93.62% and 93.55% of TBHQ, respectively. The Phyllanthus urinaria polysaccharides had good antioxidant activity.
关键词：Phyllanthus urinaria; polysaccharides; antioxidant activity; response surface methodology.
其他关键词：Phyllanthus urinaria;polysaccharides;antioxidant activity;response surface methodology