| NaClO─VAC改性玉米淀粉的工艺优化 |
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| 引用本文： | 刘泽民,黄新辉,张朝,周慧娟.NaClO─VAC改性玉米淀粉的工艺优化[J].河南师范大学学报(自然科学版),2005,33(2):133-135,138. |
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| 作者姓名： | 刘泽民 黄新辉 张朝 周慧娟 |
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| 摘 要： | 以玉米淀粉为原料,用次氯酸钠进行预氧化,然后以醋酸乙烯酯(VAC)进行乙酰化,合成了醋酸淀粉酯.采用单因素分析法,找到了较佳的工艺参数为m(淀粉):m(VAC)=1∶1.25,反应温度30℃,反应时间1h,pH值8~9,在此条件下制得产品的取代度为0.0386.
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| 关 键 词： | 醋酸淀粉酯 预氧化 乙酰化 |
Selection on Technology Conditions of Double Modified Starch by NaClO-VAC |
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| Abstract: | Starch acetate is prepared from corn starch which is oxidized preparatory by NaClO and is acetylated by vinyl acetate (VAC), through single factor analysis of the optimum conditions: m(starch)∶m(VAC)=1∶1.25,reaction temperature 30 ℃, reaction time 1 h, pH 8-9,in these conditions the substitution degree of product is 0.038 6. |
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| Keywords: | starch acetate preparatory oxidation acetylation |
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