| 交联-羧甲基复合变性淀粉合成及结构表征 |
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| 引用本文： | 王占忠,党乐平.交联-羧甲基复合变性淀粉合成及结构表征[J].粮食与饲料工业,2008(9). |
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| 作者姓名： | 王占忠 党乐平 |
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| 作者单位： | 1. 天津大学农业与生物工程化工学院,天津,300072
2. 天津大学化工学院,天津,300072 |
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| 摘 要： | 以环氧氯丙烷为交联剂,一氯乙酸为醚化剂,合成交联-羧甲基复合变性淀粉,考察交联、羧甲基化对淀粉表观及内部结构的作用.通过可见光吸收光谱,差示扫描量热、扫描电镜、X衍射、红外光谱对原淀粉、交联淀粉、羧甲基淀粉、复合变性淀粉进行结构与性质的表征及分析.结果显示:交联反应主要发生在淀粉颗粒表面的无定形区,羧甲基化反应发生在淀粉颗粒的无定形区及结晶区,交联-羧甲基复合变性淀粉兼有单一变性淀粉的性能.
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| 关 键 词： | 交联-羧甲基复合变性淀粉 合成 结构表征 |
Synthesis and Structural Characterization of Cross-linked Carboxymethylated Composite-modified Starch |
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| Wang Zhanzhong,Dang Leping.Synthesis and Structural Characterization of Cross-linked Carboxymethylated Composite-modified Starch[J].Cereal & Feed Industry,2008(9). |
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| Authors: | Wang Zhanzhong Dang Leping |
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| Abstract: | Cross-linked carboxymethylated composite-modified starch was prepared by using wheat starch as material,monochloroacetic acid and epichlorohydrin as carboxymethylated agent and cross-linking agent respectively.The effect of cross-linking and carboxymethylating on the apparent and inside structure of starch was investigated.Original starch,cross-linked starch,carboxylmethylated starch,cross-linked carboxymethylated composite-modified starch were characterized through the visible light absorption,different sc... |
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| Keywords: | cross-linked carboxymethylated composite-modified starch synthesis structural characterization |
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