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生物质化学工程 ›› 2020, Vol. 54 ›› Issue (5): 37-44.doi: 10.3969/j.issn.1673-5854.2020.05.006

• 研究报告 • 上一篇    下一篇

纳滤法制备高纯度雪莲果低聚果糖及其结构表征

曲晓萌1(),杨革2,*(),张泽浩3,张兰4   

  1. 1. 山东省济宁卫生学校, 山东 济宁 272000
    2. 曲阜师范大学 生命科学学院, 山东 曲阜 273165
    3. 山东第一医科大学, 山东 泰安 271000
    4. 牡丹江医学院, 黑龙江 牡丹江 157011
  • 收稿日期:2017-06-28 出版日期:2020-09-30 发布日期:2020-09-29
  • 通讯作者: 杨革 E-mail:xiaomeng-qu@163.com;yangge100@126.com
  • 作者简介:曲晓萌(1981-),女,山东烟台人,硕士,主要从事天然产物化学研究; E-mail:xiaomeng-qu@163.com
  • 基金资助:
    贵州省科技攻关项目(黔科合S字[2007]1017)

Preparation of High Purity Yacon Fructo-oligosaccharides by Nanofiltration and Its Characterization

Xiaomeng QU1(),Ge YANG2,*(),Zehao ZHANG3,Lan ZHANG4   

  1. 1. Shandong Province Jining Health School, Jining 272000, China
    2. College of Life Science, Qufu Normal University, Qufu 273165, China
    3. Shandong First Medical University, Tai'an 271000, China
    4. Mudanjiang Medical University, Mudanjiang 157011, China
  • Received:2017-06-28 Online:2020-09-30 Published:2020-09-29
  • Contact: Ge YANG E-mail:xiaomeng-qu@163.com;yangge100@126.com
  • Supported by:
    贵州省科技攻关项目(黔科合S字[2007]1017)

摘要:

采用纳滤分离技术以雪莲果为原料纯化低聚果糖,通过Box-Behnken中心组合设计(CCD)及响应面分析(RSM)建立预测低聚果糖纯度的二次多项数学模型,优化分离纯化工艺。结果表明:操作压力0.15 MPa,循环流量5.3 mL/min,pH值2.7时,纯化倍数为5,实际低聚果糖纯度为95.1%,达到P级产品标准。通过应用HPLC-MS、IR、1H NMR及13C NMR等对雪莲果低聚果糖组分的纯度、组成、结构进行表征,结果表明:分离纯化得到的雪莲果低聚果糖由蔗果三糖、蔗果四糖和蔗果五糖组成,纯度为95.1%,平均包含5个果糖单元,主要是由β-呋喃构型的果糖组成。

关键词: 雪莲果, 低聚果糖, 纳滤, 分离纯化, 结构表征

Abstract:

The yacon fructo-oligosaccharides(FOS) was separated and purified by the nanometer membrane from yacon. A quadratic mathematical model for predioting the concentration of oligosaccharides was developed to optimize the purification process by Box-Behnken central composite design(CCD) and response surface methodology(RSM). Consequently, the optimized processing parameters were determined as operating pressure 0.15 MPa, circulation flow rate 5.3 mL/min, pH value 2.7, purification fold 5, the purity of the obtained FOS was 95.1%, which could reach P grade standard. HPLC-MS, IR, 1H NMR and 13C NMR were used to characterize the purity, composition and structure of FOS. The results showed that the purified FOS was composed of kestose, nystose and bestonentaose. The purity was 95.1% and it contained on average of 5 fructose units. The yacon FOS was mainly composed of β-furan-fructose tested by IR.

Key words: yacon, FOS, nanofiltration, separation and purification, structure characterization

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