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大孔树脂纯化茶皂素工艺研究
Purification of tea saponin by macroporous resin
  
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中文关键词:  茶皂素  大孔树脂  吸附  解吸  纯化
英文关键词:tea saponin  macroporous resin  adsorption  desorption  purification
基金项目:
Author NameAffiliation
ZHANG Yunfeng  
WANG Liping  
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中文摘要:
      采用大孔树脂对茶皂素粗品进行分离纯化。以茶皂素得率为指标，采用响应面法优化洗脱条件。通过考察不同极性的大孔树脂D-101、AB-8、S-8、X-5、HPD-100的吸附与解吸性能，从中筛选出具有代表性的S-8大孔树脂，并对其吸附和解吸能力进行综合分析。确定S-8大孔树脂纯化茶皂素最佳工艺条件为：S-8大孔树脂装柱量100 g，质量浓度为0.703 mg/mL的茶皂素溶液110 mL，上样流速3.03 mL/min，洗脱剂乙醇体积分数90%，乙醇流速3.03 mL/min，乙醇用量100 mL。在最佳条件下，对含量为47.38%的茶皂素粗品进行分离纯化，最终茶皂素得率为81.74%，回收率为78.29%，含量为85.36%。
英文摘要:
      The crude tea saponin was separated and purified by macroporous resin. Using the yield of tea saponin as indicator, the elution conditions were optimized by response surface methodology. S-8 macroporous resin was screened out by studying the adsorption and desorption properties of macroporous resins D-101, AB-8, S-8, X-5 and HPD-100. The optimal adsorption conditions were obtained as follows: dosage of S-8 macroporous resin 100 g, mass concentration of tea sapoin solution 0.703 mg/mL, loading volume 110 mL and flow rate of sample 3.03 mL/min， volume fraction of ethanol (eluent)90%, flow rate 3.03 mL/min, dosage of ethanol 100 mL. After 47.38% of tea saponin was separated and purified under the optimal conditions, the yield, recovery rate and content of tea saponin were 81.74%, 78.29% and 85.36%,respectively.
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