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生物质化学工程 ›› 2019, Vol. 53 ›› Issue (6): 39-44.doi: 10.3969/j.issn.1673-5854.2019.06.007

• 研究报告 • 上一篇    下一篇

茶皂素提取条件的优化及纯化研究

孙万里()   

  1. 江西省宜春学院 化学与生物工程学院, 江西 宜春 336000
  • 收稿日期:2019-02-26 出版日期:2019-11-30 发布日期:2019-12-10
  • 作者简介:孙万里(1967—),男,江西修水人,副教授,博士,主要从事生物质资源生物转化的研究; E-mail: wlsss@163.com
  • 基金资助:
    宜春学院地方发展研究中心招标项目(2210816026)

Study on Extraction and Purification of Tea Saponin from Tea Seed Meal

Wanli SUN()   

  1. College of Chemistry and Bioengineering, Yichun University, Yichun 336000, China
  • Received:2019-02-26 Online:2019-11-30 Published:2019-12-10
  • Supported by:
    宜春学院地方发展研究中心招标项目(2210816026)

摘要:

以油茶茶籽粕为原料,采用乙醇水溶液提取茶皂素。在茶籽粉和乙醇料液比1 : 9(g : mL),乙醇体积分数60%,提取温度60 ℃和提取时间3 h的最佳条件下茶皂素的提取得率达14.9%。用NKA-9型大孔吸附树脂吸附纯化茶皂素粗品,树脂静态吸附与解吸结果表明:树脂静态吸附茶皂素粗提液0.5 h基本饱和,体积分数80%乙醇解吸率为91.1%;动态吸附与解吸时,上样流速8 mL/min较佳,吸附率为66.04%,体积分数80%乙醇洗脱,洗脱流速5.0 mL/min,洗脱体积50 mL时,可使流出液中茶皂素质量浓度在1.25~1.57 g/L之间,茶皂素纯度为95%。

关键词: 茶籽粕, 茶皂素, 提取, 纯化, NKA-9型大孔吸附树脂

Abstract:

Tea saponin was extracted by alcohol extraction using tea seed meal as raw material. The optimum extraction conditions of tea saponin was as follows:the ratio of solid to liquid was 1 : 9(g/mL), the volume fraction of extraction solution(ethanol) was 60%, the extraction temperature was 60 ℃ and the extraction time was 3 h, under the above reaction conditions, the highest yield of tea saponin was 14.9%. Crude tea saponin was purified by NKA-9 macroporous resin. In the purification experiment, the static adsorption reached saturation for 0.5 h and the desorption rate of the volume fraction 80% ethanol reached the maximum of 91.1% in the static desorption, while the dynamic adsorption and desorption. The adsorption rate reached 66.04% at the rate of 8 mL/min, and the concentration of tea saponin was between 1.25 g/L and 1.57 g/L after elution with the volume fraction 80% ethanol of 50 mL at the flow rate of 5.0 mL/min, tea saponin purity 95%.

Key words: tea seed meal, tea saponin, abstract, purification, NKA-9 macroporous resin

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