华南理工大学学报(自然科学版) ›› 2007, Vol. 35 ›› Issue (4): 39-41,57.

• 化学化工 • 上一篇    下一篇

醇碱法制备非晶颗粒态淀粉

徐立宏1 张本山2 杨连生2 高大维2   

  1. 1.华南理工大学 化学科学学院,广东 广州 510640; 2. 华南理工大学 轻工与食品学院,广东 广州 510640
  • 收稿日期:2006-03-13 出版日期:2007-04-25 发布日期:2007-04-25
  • 通信作者: 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
  • 作者简介:徐立宏(1967-),女,博士生,主要从事变性淀粉、精细化学品研究.
  • 基金资助:

    国家自然科学基金资助项目(29976016)

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

Xu Li-hongZhang Ben-shanyang Lian-shengGao Da-wei2   

  1. 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)

摘要: 提出了一种以玉米淀粉为原料,在一定比例的碱和醇混合液的作用下制备非晶颗粒态淀粉(NCGS) 的方法.具体步骤如下:将原淀粉在一定温度下经碱醇混合液处理,使颗粒发生有限膨胀,经中和后,以一定浓度的乙醇溶液洗涤,烘干即得到非晶颗粒态淀粉.采用偏光显微镜及X 射线衍射仪对淀粉结晶结构的变化进行了确认.提出在一定条件下,可以用一定浓度的碱处理醇水分散体系的淀粉末制备非晶颗粒态淀粉.

关键词: 非晶颗粒, 淀粉, 醇戚, 制备

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