吉首大学学报(自然科学版) ›› 2024, Vol. 45 ›› Issue (6): 37-43.DOI: 10.13438/j.cnki.jdzk.2024.06.006

• 药物化学与药理 • 上一篇    下一篇

玉竹多糖的提取工艺及体外抗氧化活性

张燕,章扬,陈嘉蕊,姚姝凤,成江   

  1. (1.吉首大学药学院,湖南 吉首 416000;2.武陵山区药用资源化学与药理湖南省高校重点实验室,湖南 吉首 416000)
  • 出版日期:2024-11-25 发布日期:2024-12-19
  • 基金资助:
    国家大学生创新创业训练计划项目(202210531011);吉首大学大学生创新创业训练计划项目(JDCX2023925);吉首大学药学院创新性研究项目(2022年立项)

Optimization of Extraction Process and Vitro Antioxidant Activity of Total Polysaccharides from Polygonatum odoratum

ZHANG Yan,ZHANG Yang,CHEN Jiarui,YAO Shufeng,CHENG Jiang   

  1. (1.College of Pharmaeutical Sciences,Jishou University,Jishou 416000,Hunan China;2.Chemical and Pharmacological Laboratory of Medicinal Resources in Wuling Mountainous Area,Jishou University,Jishou 416000,Hunan China)
  • Online:2024-11-25 Published:2024-12-19

摘要:对玉竹根状茎中多糖的提取工艺进行优化,并评价多糖的抗氧化活性.采用超声辅助水提法,以玉竹根状茎粉末为原料,玉竹多糖提取率为评价指标,考察料液比、超声功率、超声温度对玉竹多糖提取效果的影响.在单因素试验基础上,利用响应面试验优化玉竹根状茎中多糖的提取工艺.结果表明,玉竹多糖的最优提取工艺为料液比1∶15 (g∶mL)、超声功率300 W、超声温度60 ℃,在该提取条件下,多糖提取率为13.58%;玉竹多糖具有一定的抗氧化活性,当多糖质量浓度为2.75 g/L时,多糖对DPPH自由基、OH自由基的清除率分别为34.18%,62.04%.

关键词: 玉竹, 多糖, 提取工艺, 抗氧化活性, 响应面法

Abstract: The extraction process and antioxidant activity of total polysaccharide from the rhizome of Polygonatum odoratum were evaluated.The total polysaccharide was isolated from Polygonatum odoratum rhizome through ultrasound-assisted water bath heating extraction method.The influences of material-liquid ratio,ultrasonic power,ultrasonic extraction temperature on the extraction rate of the total polysaccharide were investigated.Based on the results of single-factor experiments,the response surface experiments give the optimal extraction conditions of total polysaccharide from the rhizome of Polygonatum odoratum∶ material-liquid ratio 1∶15 (g∶mL),ultrasonic power 300 W,extraction time 60 min,and ultrasonic extraction temperature 60 ℃.Under these extraction conditions,the total polysaccharide yield of Polygonatum odoratum was 13.58%.The results of the antioxidant activity test showed that when the mass concentration of Polygonatum odoratum polysaccharide was 2.75 g/L,the scavenging rates of Polygonatum odoratum polysaccharide on DPPH radicals and OH radicals were 34.18% and 62.04%,respectively.

Key words: Polygonatum odoratum, polysaccharide, extraction process, antioxidant activity, response surface method

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