马铃薯交联&ndash;羧甲基淀粉的结构与性能

钟振声 钟艳萍 孙昂

doi:10.3969/j.issn.1000-565X.2011.03.005

华南理工大学学报(自然科学版) >

2011 , Vol. 39 >Issue 3: 22 - 27

DOI: https://doi.org/10.3969/j.issn.1000-565X.2011.03.005

化学化工

马铃薯交联–羧甲基淀粉的结构与性能

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华南理工大学化学与化工学院，广东广州 510640

钟振声(1955-)，男，教授，主要从事精细化工研究

收稿日期: 2010-06-11

修回日期: 2010-07-14

网络出版日期: 2011-02-01

基金资助

广东省科技计划国际合作项目(B15B2071080)

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Structure and Properties of Crosslinked Potato-Carboxymethyl Starch

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School of Chemistry and Chemical Engineering，South China University of Technology，Guangzhou 510640，Guangdong，China

钟振声(1955-)，男，教授，主要从事精细化工研究

Received date: 2010-06-11

Revised date: 2010-07-14

Online published: 2011-02-01

Supported by

广东省科技计划国际合作项目(B15B2071080)

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摘要

以马铃薯淀粉为原料,环氧氯丙烷为交联剂,制备交联–羧甲基淀粉（CCMS）.对比了CCMS与马铃薯原淀粉、交联淀粉（CS）、羧甲基淀粉（CMS）和羧甲基纤维素（CMC）的性质,结果表明CCMS糊液具有良好的抗老化能力、热稳定性、酸碱稳定性及抗剪切稳定性.采用傅里叶变换红外光谱（FT-IR）、环境扫描电镜（ESEM）和X射线衍射（XRD）等手段对马铃薯原淀粉、CS、CMS和CCMS的分子结构、颗粒形态进行表征,分析了产品的变性程度,论证了结构与性能的关系,揭示了CCMS结构性能的优越性.

关键词： 马铃薯淀粉; 交联; 羧甲基化; 复合变性; 性质

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钟振声钟艳萍孙昂 . 马铃薯交联–羧甲基淀粉的结构与性能[J]. 华南理工大学学报(自然科学版), 2011 , 39(3) : 22 -27 . DOI: 10.3969/j.issn.1000-565X.2011.03.005

Abstract

Crosslinked carboxymethyl starch（CCMS） was synthesized from potato starch,with epichlorohydrin as the crosslinking agent.Then,the properties of CCMS were compared with those of native potato starch,crosslinked starch（CS）,carboxymethyl starch（CMS） and carboxymethyl cellulose（CMC）,finding that CCMS paste is of excellent aging resistance,thermal stability,pH stability and shear stability.Moreover,the molecular structure and particle morphology of potato starch and the modified starches were characterized by means of FT-IR,ESEM and XRD,with the modification degree and the relationship between structure and properties being also analyzed.The results indicate that CCMS is of reasonable structure and excellent

Key words： potato starch; crosslinking; carboxymethyl; compound modification; properties

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