北方农业学报 ›› 2023, Vol. 51 ›› Issue (5): 84-92.doi: 10.12190/j.issn.2096-1197.2023.05.09

• 农产品加工 • 上一篇    下一篇

槲寄生多糖提取工艺优化及抗氧化活性研究

蒋大珍, 马佰诚, 杨皎, 罗进城, 孙雪薇, 李佳琳   

  1. 佳木斯大学 公共卫生学院,黑龙江 佳木斯 154007
  • 收稿日期:2023-09-04 出版日期:2023-10-20 发布日期:2024-01-04
  • 通讯作者: 李佳琳(1979—),女,副教授,硕士,主要从事营养与食品卫生学方面的研究工作。
  • 作者简介:蒋大珍(1998—),女,硕士研究生,研究方向为营养与食品卫生学。
  • 基金资助:
    黑龙江省教育厅基本科研业务费基础研究项目(2021-KYYWF-0611)

Study on the optimization of mistletoe polysaccharide extraction process and the antioxidant activities

JIANG Dazhen, MA Baicheng, YANG Jiao, LUO Jincheng, SUN Xuewei, LI Jialin   

  1. College of Public Health,Jiamusi University,Jiamusi 154007,China
  • Received:2023-09-04 Online:2023-10-20 Published:2024-01-04

摘要:

【目的】优化槲寄生多糖提取工艺,探究抗氧化活性,为槲寄生多糖提取及有效利用提供参考。【方法】以多糖得率为考查指标,采用单因素试验方法分析料液比、超声时间、超声温度、超声功率对槲寄生多糖得率的影响;运用响应面法对槲寄生多糖提取工艺进行优化,并测定槲寄生多糖对DPPH自由基、ABTS自由基的清除能力及对三价铁离子的总还原力。【结果】不同因素水平下,料液比1∶30(g∶mL)、超声温度70 ℃、超声时间20 min、超声功率300 W时,对应的槲寄生多糖得率最高,分别为3.85%、5.59%、8.60%、5.86%,对槲寄生多糖得率的影响为超声温度>超声时间>超声功率>料液比;响应面法优化结果:料液比1∶29(g∶mL)、超声时间15 min、超声温度64 ℃、超声功率300 W时,槲寄生多糖得率最高,为8.17%。2 mg/mL多糖溶液对DPPH自由基、ABTS自由基的清除能力分别为79.07%、51.38%,IC50分别为0.612、2.611 mg/mL;对三价铁离子的总还原力为0.33。【结论】槲寄生多糖的最佳提取工艺为:料液比1∶29(g∶mL)、超声时间15 min、超声温度64 ℃、超声功率300 W;槲寄生多糖对DPPH自由基、ABTS自由基均有清除作用,对三价铁离子具有还原作用。

关键词: 槲寄生, 多糖, 工艺优化, 响应面法, 抗氧化活性

Abstract:

【Objective】Optimize the extraction process of mistletoe polysaccharide and investigate its antioxidant activities,to provide references for the extraction and utilization of mistletoe polysaccharide.【Methods】Using polysaccharide yield as the evaluation index and single factor experiment method to analyse the effect of solid-liquid ratio,ultrasonic time,ultrasonic temperature and ultrasonic power on the polysaccharide yield of mistletoe. The response surface methodology was adopted to optimize the extraction process of mistletoe polysaccharide. Additionally the scavenging abilities of mistletoe polysaccharide on DPPH free radicals,and ABTS free radicals as well as the total reducing power of trivalent iron ions were tested.【Results】Under different factor levels,the solid-liquid ratio of 1∶30(g∶mL),ultrasonic temperature of 70 ℃,ultrasonic time of 20 min,and ultrasonic power of 300 W had the highest yield of mistletoe polysaccharide at 3.85%,5.59%,8.60%,and 5.86%,respectively. The effects on the yield of mistletoe polysaccharide were as follows:ultrasonic temperature>ultrasonic time>ultrasonic power>solid-liquid ratio. After optimized with response surface methodology the highest yield of mistletoe polysaccharide of 8.17% was obtained with solid-liquid ratio of 1∶29(g∶mL),ultrasonic time of 15 min,ultrasonic temperature of 64 ℃,and ultrasonic power of 300 W. The scavenging abilities of 2 mg/mL polysaccharide solution on DPPH and ABTS free radicals were 79.07% and 51.38%,with IC50 0.612 and 2.611 mg/mL,respectively. The total reducing power of trivalent iron ions was 0.33.【Conclusion】The optimal conditions for the extraction of mistletoe polysaccharides were:solid-liquid ratio of 1∶29(g∶mL),ultrasonic time of 15 min,ultrasonic temperature of 64 ℃,ultrasonic power of 300 W. Mistletoe polysaccharides had scavenging effects on DPPH free radicals,ABTS free radicals and reducing effects on trivalent iron ions.

Key words: Mistletoe, Polysaccharide, Process optimization, Response surface methodology, Antioxidant activity

中图分类号: 

  • TS209