食品科学 ›› 2011, Vol. 32 ›› Issue (19): 88-91.doi: 10.7506/spkx1002-6630-201119019

• 基础研究 • 上一篇    下一篇

茶枝柑皮多糖的分离纯化及单糖组成分析

陈 思,黄庆华,*,李娆玲,甘伟发,源翰祺   

  1. 1. 广东药学院药科学院 2. 健康元药业集团股份有限公司
  • 发布日期:2011-10-12
  • 基金资助:
    广东省教育厅大学生创新实验项目(1057310008)

Isolation, Purification and Monosaccharide Composition Analysis of Citus reticulata Peel Polysaccharides

CHEN Si1,2,HUANG Qing-hua1,*,LI Rao-ling1,GAN Wei-fa1,YUAN Han-qi1   

  1. (1. College of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China; 2. Joincare Pharmaceutical Industry Group Co. Ltd., Shenzhen 518057, China)
  • Published:2011-10-12

摘要: 采用酸水法从茶枝柑皮中提取多糖,经D-201阴离子交换树脂脱色、Sevag法脱蛋白,透析、冻干后得茶枝柑皮多糖,再用DEAE-Sepharose Fast Flow离子交换柱层析及Sephadex G-100凝胶柱层析分离得到组分CPA-Ⅰ。单糖经1-苯基-3-甲基-5-吡唑啉酮(PMP)衍生化后采用高效液相色谱法对多糖组成进行研究,凝胶分子排阻色谱法鉴定其纯度并测定其相对分子质量,紫外、红外光谱法对结构进行初步分析。结果表明:茶枝柑皮多糖CPA-Ⅰ不含蛋白,重均相对分子质量为7.96×104,主要由半乳糖醛酸和阿拉伯糖组成,是羧酸酯化的半乳糖醛酸多聚糖。

关键词: 茶枝柑皮, 多糖, 分离纯化, 单糖组成

Abstract: Polysaccharides were extracted from dried powder of Citus reticulata peel with acidic water, followed by pigment removal on D-201 ion exchange resin, protein removal by Sevag,s method, dialysis and freeze-drying. The CPA-I fraction was achieved by sequential column chromatographies on DEAE-sepharose fast flow and Sephadex G-100. Monosaccharide composition analysis of CPA-I was carried out by HPLC based on pre-column derivatization with 1-phenyl-3-methy1-5-pyrazolone (PMP). High performance size exclusion chromatography (HPSEC) was used for purity analysis and relative molecular weight determination. UV-visible and infrared (IR) spectral analyses were conducted for structural characterization. The results showed that the molecular weight of CPA-I with high purity was 7.96×104, and the monosaccharide composition of the polysaccharide was composed of galacturonic acid and arabinose. The IR spectrum indicated that CPA-I was a galacturonic acid polysaccharide esterified by carboxylic acid.

Key words: Citus reticulata peel, polysaccharide, isolation and purification, monosaccharide composition

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