食品工业科技2012，Vol.33Issue(3)：195-198,4.
双醛蜡质玉米淀粉的制备与特性研究
Study on preparation and properties of dialdehyde starch from waxy corn starch
摘要
Abstract
The dialdehyde starch was prepared through oxidation reaction with waxy corn starch and sodium periodate as raw material and oxidant respectively.By the experiments of single factor,the optimal conditions of process were as follows：the ratio of sodium periodates and starch was 1.1：1,the pH of the reaction was 3.0,the temperature was 30℃,the reaction time was 2 hours,and the concentration of starch slurry was 8%,the aldehyde content of prepared sample could reach 87.36%.From the photos of polarizing microscope,the polarizing cross reduced with the increase of aldehyde content in dialdehyde starch;through the characterization of infrared spectrum,absorption peak appeared around the wave of 1729cm-1 obviously,demonstrating the existence of aldehyde content.And the Brabenderviscosity curves appeared：comparing with the native starch,the initial gelatinization points lagged behind and the peak viscosities which were lower than native starch went up with the increase of aldehyde content;X-diffraction spectrum appeared that strong peak absorption gradually disappeared with the increase of aldehyde content.关键词
蜡质玉米淀粉/高碘酸钠/双醛淀粉Key words
dialdehyde starch/waxy starch/sodium periodate分类
轻工纺织引用本文复制引用
胡磊,高群玉..双醛蜡质玉米淀粉的制备与特性研究[J].食品工业科技,2012,33(3):195-198,4.基金项目
国家高技术研究发展计划资助课题 （）
