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大孔树脂分离纯化宁夏枸杞总黄酮的研究
  • 期刊名称:离子交换与吸附, 27(3): 202-211
  • 时间:0
  • 分类:O647.3[理学—物理化学;理学—化学]
  • 作者机构:[1]西北农林科技大学食品科学与工程学院,杨凌712100, [2]宁夏大学葡萄与葡萄酒教育部工程研究中心,银川750021
  • 相关基金:国家自然科学基金(20862014)
  • 相关项目:枸杞果酒发酵过程中生物活性物质的变化动力学研究
中文摘要:

考察了NKA-9、S-8、XDA-1、AB-8、HPD-100、HPD-600 6种大孔吸附树脂对宁夏枸杞总黄酮的吸附和解吸性能,筛选出XDA-1树脂的效果最佳;考察了pH值、样液浓度、流速等对XDA-1树脂静态吸附效果的影响;并进行了动态吸附试验,确定出XDA-1树脂动态吸附枸杞总黄酮的最佳条件:样品液浓度为0.25mg/mL,控制流速为0.5mL/min,样品液pH 5;最佳洗脱条件:洗脱液为80%的乙醇水溶液,用量为35mL(5倍柱床体积)。在此条件下,枸杞总黄酮含量从27.2%提高到79.8%,回收率为87.4%,表明XDA-1树脂可用于宁夏枸杞总黄酮的分离纯化。

英文摘要:

Six macroporous resins,including of NKA-9、S-8、XDA-1、AB-8、HPD-100 and HPD-600,were studied on separation and purification of total flavonoids in Lycium Barbarum Linnaeus.The experimental results showed XDA-1 resin had better adsorption and desorption performance than other resins.With XDA-1 resin,the effects of pH、extract concentration and flow rate on the adsorption performance were studied.The dynamic adsorption and desorption conditions of XDA-1 resin for total flavonoids were optimized.The optimum dynamic adsorption conditions for total flavonoids were obtained as follows: total flavonoids concentration,0.25mg/mL;pH,5;flow rate,0.5mL/min.The optimum desorption conditions were obtained at eluant,80% ethanol aqueous solution(v/v);the amount of elution,35mL(5 bed volume).In these techniques,total flavonoids content were increased from 27.2% to 79.8%,with a total flavonoids recovery rate of 87.4%.The results indicated that XDA-1 resin could be used in separation and purification for total flavonoids in Lycium Barbarum Linnaeus.

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