微水固相法氧化改性皂荚多糖胶

doi:10.3969/j.issn.0253-2417.2014.06.007

林产化学与工业 ›› 2014, Vol. 34 ›› Issue (6): 44-48.doi: 10.3969/j.issn.0253-2417.2014.06.007

微水固相法氧化改性皂荚多糖胶

章伟岸¹, 段久芳¹, 孙达峰², 张卫明², 蒋建新¹

1. 北京林业大学材料科学与技术学院, 北京 100083;
2. 南京野生植物综合利用研究院, 江苏南京 210042

收稿日期:2014-05-06 出版日期:2014-12-25 发布日期:2015-08-18
通讯作者: 蒋建新,博士生导师,研究领域为林产化工及生物质能源;E-mail:jiangjx@bjfu.edu.cn. E-mail:jiangjx@bjfu.edu.cn
作者简介:章伟岸(1991-),男,江西抚州人,硕士生,主要从事植物多糖胶的改性研究工作
基金资助:
国家自然科学基金资助项目(31270624);北京市自然科学基金项目(6122023)

A Micro Water Solid Phase Method for Oxidation of Gleditsia sinensis Lam.Galactomannan Gum

ZHANG Wei-an¹, DUAN Jiu-fang¹, SUN Da-feng², ZHANG Wei-ming², JIANG Jian-xin¹

1. College of Material Science and Technology, Beijing Forestry University, Beijing 100083, China;
2. Nanjing Institute for Comprehensive Utilization of Wild Plants, Nanjing 210042, China

Received:2014-05-06 Online:2014-12-25 Published:2015-08-18

摘要/Abstract

摘要： 采用微水固相法氧化改性皂荚多糖胶(GSG),以H₂O₂为氧化剂,制备氧化皂荚多糖胶(OGSG).通过凝胶渗透谱(GPC)和黏度计检测器等的分析,比较不同质量分数的H₂O₂对OGSG的取代度(D_S)、相对分子质量、黏度的影响.结果显示:随着氧化试剂H₂O₂浓度的增大,氧化皂荚多糖胶的取代度和多分散性呈增加趋势,特性黏度和相对分子质量呈下降趋势.皂荚多糖胶20 g,30%H₂O₂ 18 g,反应时间1 h,反应温度65 ℃,在上述较佳反应条件下,取代度达到1.22.微水固相法氧化改性可以在使用较少反应试剂条件下达到较好氧化的效果.

关键词: 皂荚多糖胶, 微水固相, 氧化, 改性

Abstract: In this study, A micro-water solid phase method was used in the oxidation of Gleditsia sinensis Lam. Galactomannan (GSG) with H₂O₂ as the oxidizing reagents to prepare the oxidated G. sinensis Lam.Galactomannan(OGSG).The degree of substitution (D_s), relative molar mass and viscosity of OGSG treated with different concentrations of H₂O₂ were investigated by gel permeation chromatography (GPC), and viscometer detectors. The result showed that with the increasing of concentration of H₂O₂, molar-mass values and the intrinsic viscosity decreased and degree of substitution and polydispersity increased. With the dosage of GSG and 30% H₂O₂ 20 g and 18 g, the reaction temperature 65 ℃ and reaction time 1 h, the D_s of product reached 1.22.The oxidation of GSG can be achieved by the method of micro-water solid phase oxidation modification under the condition of using fewer reaction reagent.

Key words: Gleditsia sinensis Lam. Galactomannan, micro water solid phase, oxidation, modification

中图分类号:

TQ35

章伟岸, 段久芳, 孙达峰, 张卫明, 蒋建新. 微水固相法氧化改性皂荚多糖胶[J]. 林产化学与工业, 2014, 34(6): 44-48.

ZHANG Wei-an, DUAN Jiu-fang, SUN Da-feng, ZHANG Wei-ming, JIANG Jian-xin. A Micro Water Solid Phase Method for Oxidation of Gleditsia sinensis Lam.Galactomannan Gum[J]. Chemistry and Industry of Forest Products, 2014, 34(6): 44-48.

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微水固相法氧化改性皂荚多糖胶

A Micro Water Solid Phase Method for Oxidation of Gleditsia sinensis Lam.Galactomannan Gum

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