摘要
研究一种新型的多羧基水溶性氧化玉米淀粉的制备方法,最佳制备条件为适量的自制催化剂,以氧气为氧化剂,NaOH用量为21g,反应温度100℃,反应时间3.0h.在该条件下制备的氧化淀粉羧基含量为3.60%.采用X射线衍射分析(XRD)、扫描电子显微镜(SEM)、红外光谱分析(IR)以及羧基、羰基含量的化学分析法等对氧化机理进行了探讨.
A novel method of the preparation for the high carboxyl groups and soluble oxidized corn starch was studied. The experimental conditions were optimized, the amount of sodium hydroxide, reaction temperature and time were 21 g, 100℃ and 3.0 h, respectively. And the carboxyl content in the oxidized corn starch reached 3.60% under the optimized conditions. The oxidized mechanism was investigated with X-ray diffraction （XRD）, Scanning electron microscopy （SEM）, Infrared （IR） spectroscopy and the analyses of carboxyl and carbonyl content carried out by using chemical analysis method .
出处
《吉林大学学报（理学版）》
CAS
CSCD
北大核心
2007年第3期471-476,共6页
Journal of Jilin University:Science Edition
基金
吉林省科技发展计划项目基金(批准号:20050201-2).
关键词
玉米原淀粉
氧化淀粉
氧化机理
羧基
羰基
native cornstarch
oxidized starch
oxidized mechanism
carboxyl group
carbonyl group
