酸式聚磷酸铵制备木薯淀粉磷酸酯的工艺研究  

Study on Preparation of Tapioca Starch Phosphate from Ammonium Polyphosphate

作　　者：徐思思[1] 徐保明[1] 时爽[1] 许庆博 陈坤[1] XU Sisi, XU Baoming, SHI Shuang, XU Qingbo, CHEN Kun(Hubei Sanning Chenical Limited by Shak Ltd Postgroduate Workstation,Hubei Univ. of Tech., Wuhan 430068, Chin)

机构地区：[1]湖北工业大学湖北三宁化工股份有限公司研究生工作站,湖北武汉430068

出　　处：《湖北工业大学学报》2018年第4期5-8,共4页Journal of Hubei University of Technology

基　　金：国家自然科学基金面上项目(21272086);科技部中小企业创业基金(12C26214204453)

摘　　要：选用自制的酸式聚磷酸铵为酯化剂,尿素作催化剂,酯化木薯淀粉,经对产品进行扫描电镜观察和差示扫描量热分析,表明得到一种由新酯化剂酯化的木薯淀粉产品。通过对酯化剂用量、催化剂用量、反应温度、反应时间等条件的优化,得出最佳工艺条件,在此条件下产品的取代度为0.107,反应效率为74.41%。In this paper,the self-made acid ammonium polyphosphate was used as the esterifying agent and urea as the catalyst.The product was characterized by scanning electron microscopy observation.The differential scanning calorimetry analysis shows that a tapioca starch esterified by a new esterifying agent was obtained.The optimal process conditions were obtained by optimizing the conditions of esterification agent,catalyst dosage,reaction temperature and reaction time.Under this condition,the degree of substitution was 0.107 and the reaction efficiency was 74.41%.

关 键 词：酸式聚磷酸铵 木薯淀粉 淀粉磷酸酯 

分 类 号：TS235.2[轻工技术与工程—粮食、油脂及植物蛋白工程]