| 非晶颗粒态木薯淀粉化学反应活性研究 |
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| 引用本文： | 梁勇,张本山,杨连生,高大维. 非晶颗粒态木薯淀粉化学反应活性研究[J]. 河南工业大学学报(自然科学版), 2004, 25(1): 9-13 |
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| 作者姓名： | 梁勇 张本山 杨连生 高大维 |
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| 作者单位： | 1. 华南师范大学,化学系,广东,广州,510641
2. 华南理工大学,轻化所,广东,广州,510641 |
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| 摘 要： | 将非晶颗粒态木薯淀粉和原淀粉在阴离子、阳离子、醋酸酯及羟丙基醚化剂条件下进行淀粉改性反应,取代度随醚化剂量的改变而改变,但由于整个颗粒处于非晶状态,导致非晶淀粉取代度和原淀粉相比有不同程度的提高.对羧甲基化,取代度平均提高5.72%,最高提高8.26%;对阳离子化来说,取代度平均提高12.36%,最高提高16.38%;对醋酸酯化,取代度平均提高22.87%,最高提高38.20%;对羟丙基化,取代度平均提高30.90%,最高提高74.22%.在不同反应时间进行反应,也可以观察到相同的变化规律,因此将淀粉进行非晶化可显著提高淀粉的反应取代度,最终提高反应效率.
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| 关 键 词： | 非晶颗粒态 木薯淀粉 化学反应活性 |
| 文章编号： | 1671-1629(2004)01-0009-05 |
| 修稿时间： | 2003-02-02 |
CHEMICAL REACTION ACTIVITY OF TAPIOCA STARCH WITH NON-CRYSTALLIZED GRANULE STATE |
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| LIANG Yong,ZHANG Ben-shan,YANG Lian-sheng,GAO Da-wei. CHEMICAL REACTION ACTIVITY OF TAPIOCA STARCH WITH NON-CRYSTALLIZED GRANULE STATE[J]. Journal of Henan University of Technology Natural Science Edition, 2004, 25(1): 9-13 |
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| Authors: | LIANG Yong ZHANG Ben-shan YANG Lian-sheng GAO Da-wei |
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| Affiliation: | LIANG Yong~1,ZHANG Ben-shan~2,YANG Lian-sheng~2,GAO Da-wei~2 |
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| Abstract: | Non-crystallized and native tapioca starches were carbonxymethylied, cationizatied,hyxoypropylied,acetylied respectively,DS changed with amount of etherified reagent.Because of whole granules being non-crystallized state, DS of non-crystallized granule state starches was higher than that of native starches. When tapioca starch was carbonxymethylied, DS of starches increased 5.72% average, 8.26 most. While cationizatied, DS of starches increased 12.36% average, 16.38 most. To be hyxoypropylied and acetylied , DS of starches increased 30.90% average, 74.22% most and 22.87% average, 38.20% most respectively. In different time, same change rule could be observed. Therefore, DS could increase using non-crystallized tapioca starches.Finally,reaction efficiency could increase,too. |
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| Keywords: | non-crystallized granule state tapioca starch chemical reaction activity |
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