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投稿时间：2017-09-28
投稿时间：2017-09-28
中文摘要: 采用沉淀技术以二甲基亚砜为溶剂，短链醇为不良溶剂利用溶剂交换法制备淀粉纳米颗粒。实验考察了不良溶剂种类，乙醇体积浓度和溶剂/不良溶剂体积比对颗粒尺寸的影响，并对获得的淀粉纳米颗粒结构与形态进行了红外光谱、扫描电镜以及X-射线衍射分析。结果表明：采用无水乙醇为不良溶剂，当溶剂与不良溶剂体积比1∶20情况下，制备的淀粉纳米颗粒尺寸（218.8±4.66）nm，粒子尺寸分布较均匀，化学结构未发生改变，晶体结构被破坏，衍射峰消失。
Abstract:The starch nanoparticles were prepared by solvent exchange method using two dimethyl sulfoxide as solvent and short chain alcohol as non-solvent.The influence of non-solvent type，concentration and solvent/non-solvent volume ratio on particle size was investigated，and the particle structure and morphology was also characterized by FT-IR spectrascopy，scanning electron microscope and X-ray diffraction.The results showed that the size of starch nanoparticles was （218.8±4.66）nm when absolute ethanol as solvent，solvent/non-solvent volume ratio 1∶20.The particle size was uniform，the chemical structure was unchanged，the crystal structure was destroyed，and the diffraction peak disappeared.
文章编号：201724002 中图分类号： 文献标志码：
基金项目:吉林省教育厅“十三五”科学技术研究项目（吉教科合字[2016]第301号）；长春大学国家级科研项目培育项目（2016JBC26L26）
| Author Name | Affiliation |
| WU Xiu-li，JIANG Xue，DUAN Lei，GUO Chun-xiang | College of Food Science and Engineering，Changchun University，Changchun 130012，Jilin，China |
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