Preparation of Non-Crystal Granular Starch by Alcoholic-Alkaline Treatment

Journal of South China University of Technology (Natural Science Edition) ›› 2007, Vol. 35 ›› Issue (4): 39-41,57.

• Chemistry & Chemical Engineering • Previous Articles Next Articles

Preparation of Non-Crystal Granular Starch by Alcoholic-Alkaline Treatment

Xu Li-hong¹Zhang Ben-shan²yang Lian-sheng²Gao Da-wei²

1. School of Chemical Science , South China Univ. of Tech. , Guangzhou 510640 , Guangdong , China;2. School of Light Industry and Food Sciences , South China Univ. of Tech. , Guangzhou 510640 , Guangdong , China

Received:2006-03-13 Online:2007-04-25 Published:2007-04-25
Contact: 徐立宏(1967-)，女，博士生，主要从事变性淀粉、精细化学品研究. E-mail:chlhxu@scut. edu.cn
About author:徐立宏(1967-)，女，博士生，主要从事变性淀粉、精细化学品研究.
Supported by:
国家自然科学基金资助项目(29976016)

Abstract

Abstract:

A method to prepare non-crystal granular starches from maize starch by alcoholic-alkaline treatment was reported. In the preparation , native starches were first treated with the mixture of ethanol and NaOH solution to swell starch granules. Next , the treated starches were neutralized. After being washed using ethanol solution with certain content , the starches were then dried to form non-crystal granular starches. The structural change of the product was finally observed by means of polarized microscope and XRD. It is concluded that non-crystal granular starches can be prepared by treating the starches in alcoholic-water separating system with alkaline in certain condi-tlons.

Key words: non-crystal granule, starch, alcoholic-alkaline, preparation

Xu Li-hong Zhang Ben-shan yang Lian-sheng Gao Da-wei. Preparation of Non-Crystal Granular Starch by Alcoholic-Alkaline Treatment[J]. Journal of South China University of Technology (Natural Science Edition), 2007, 35(4): 39-41,57.

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Preparation of Non-Crystal Granular Starch by Alcoholic-Alkaline Treatment

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