文章摘要
赵鹏.款冬花磷酸酯多糖合成工艺研究[J].精细化工,2019,36(2):
款冬花磷酸酯多糖合成工艺研究
Study on Synthesis of Phosphorylated Polysaccharides from Tussilago farfara
投稿时间:2018-05-30  修订日期:2018-10-30
DOI:
中文关键词: 款冬花  多糖  磷酸酯化  抗氧化性
英文关键词: Tussilago farfara  polysaccharides  phosphoric  antioxidant activity
基金项目:
作者单位E-mail
赵鹏 陕西中医药大学 zhaopeng65@qq.com 
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中文摘要:
      本研究以款冬花多糖为原料,采用混合磷酸盐法,制备款冬花磷酸酯多糖。以磷酸基的取代度(DS)为指标,在单因素实验的基础之上,采用响应面法对款冬花多糖磷酸酯化的制备工艺条件进行优化。并且对款冬花磷酸酯多糖清除DPPH?自由基的活性进行了初步研究。研究结果表明,最优合成工艺条件:反应时间6.03h,反应温度86℃,尿素用量14.25%,混合磷酸盐质量比为2.0,混合磷酸盐与款冬花多糖质量比为1.5。按此工艺条件,款冬花多糖磷酸酯中磷酸基团的取代度DS的平均值为0.697,且其清除DPPH?自由基的活性有所提高。
英文摘要:
      Phosphorylated polysaccharides from Tussilago farfara was synthesized . The synthetic process conditions was optimized via the response surface method. The research results show that 6.03h, 86℃, 14.25% of urea,2.0 of mass ratio of mix-phosphate, 1.5 of mass ratio of mix-phosphate and polysaccharides were the optimum conditions. The Ds of phosphorylated polysaccharides from Tussilago farfara was 0.697. The antioxidant ability of phosphorylated polysaccharides from Tussilago farfara had been improved.
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