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Position: Home > Articles > Study on DPPH Free Radical Scavenging Activities of Crude Polysaccharides from Hibiscus sabdariffa L Chinese Agricultural Science Bulletin 2011,27 (8) 128-131

玫瑰茄粗多糖清除DPPH自由基活性研究

作  者:
王锐;周云;何嵋;薛梅;袁晓春
单  位:
昭通师范高等专科学校化学系
关键词:
玫瑰茄;粗多糖;1,1-二苯基苦基苯肼;清除率;抗氧化活性
摘  要:
以玫瑰茄干花萼为原料,利用水浸醇析法提取玫瑰茄粗多糖,其抗氧化活性用清除1,1-二苯基苦基苯肼(DPPH)自由基的能力进行评价。结果表明,玫瑰茄粗多糖具有良好的抗氧化活性,其浓度在0.551~2.150mg/mL范围内,与清除率呈较好的线性关系:y=28.7684x+39.43208,R=0.973。
译  名:
Study on DPPH Free Radical Scavenging Activities of Crude Polysaccharides from Hibiscus sabdariffa L
作  者:
Wang Rui,Zhou Yun,He Mei,Xue Mei,Yuan Xiaochun (Chemistry Department of Zhaotong Teacher’s College,Zhaotong Yunnan 657000)
关键词:
Hibiscus sabdariffa L.;crude polysaccharides;1,1-diphenyl-2-picrylhydrazyl (DPPH);scavenging rate;antioxidative activity
摘  要:
The antioxidateve activity of crude polysaccharides was determined by the capacity of scavenging 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical after dried roselle calyx was extrated by hot-water and ethanol precipitation.The results showed that the crude polysaccharides had better antioxidative activity and in the concentration range of 0.551-2.150 mg/mL had a good linear relationship:y =28.7684x +39.43208,R =0.973.

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