| 赖兴娟,汪月,牛黎莉,方琳凯,曾著莉,张盛贵.超声波辅助酸解制备淀粉纳米颗粒及其特性表征[J].中国粮油学报,2017,32(8):46- |
| 超声波辅助酸解制备淀粉纳米颗粒及其特性表征 |
| Preparation and characterization of starch nanoparticles by ultrasonic assisted acid hydrolysis |
| 投稿时间：2016-05-18 修订日期：2016-08-04 |
| DOI： |
| 中文关键词: 超声波 酸解 淀粉纳米颗粒 特性表征 |
| 英文关键词:ultrasound, acid hydrolysis, starch nanoparticles, characterization |
| 基金项目:甘肃省农业生物技术研究与应用开发项目（GNSW-2014-10）;甘肃省农业科技创新项目（GNCX-2012-43） |
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| 中文摘要: |
| 本文以马铃薯淀粉为原料,用超声波辅助酸水解的方法制备淀粉纳米颗粒,并以颗粒的粒径、产率为指标,研究了酸浓度、酸解时间和超声功率对淀粉纳米颗粒制备的影响,试验结果表明：酸易水解淀粉颗粒非结晶区,使颗粒的结晶度明显提高,颗粒的粒径可以降至1800~2200 nm,超声波辅助处理后,粒径能进一步降低至120~150 nm范围内。试验得出制备淀粉纳米颗粒的最适工艺参数为酸浓度3 mol/L,酸解时间20 h,超声功率400 W,得到的淀粉纳米颗粒平均粒径在50~80 nm范围内,产率为14.1%,结晶度由21.57%增长到46.35%,吸水率由34.8%增长到96.9%。 |
| 英文摘要: |
| With potato starch as raw material,Preparation of starch nanoparticles by ultrasonic assisted acid hydrolysis,and the particle size and the yield of the particle as the index,The effects of acid concentration, acid hydrolysis time and ultrasonic power were studied,Test results show that: the acid is easily hydrolyzed to the non-crystalline region of the starch granules, so that the crystallinity of the particles is obviously increased, the particle size can be reduced to1800~2200 nm, After ultrasonic treatment, the particle size can be reduced to 120~150 nm.The test results showed the optimum processing parameters for preparation of nanoparticles by ultrasonic assisted acid hydrolysis of potato starch: acid concentration 3 mol/L,acid hydrolysis time 20 h,Ultrasonic power 400 W,The average size of starch nanoparticles was in the range of 50~80 nm,The yield was 14.1%,the crystallinity increases from 21.57% to 46.35%,and the water absorption rate increases from 34.8% to 96.9%. |
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