摘要
变性淀粉工业是国内具有广阔的市场前景的工业之一。辛烯基琥珀酸淀粉酯是种非常重要的亲油脂变性淀粉,乳化稳定,效果优良,对人体无毒副作用,作为一种新的食品添加剂,成为国际上通用的安全添加剂,在各种行业都有广泛的应用。本研究从反应机理出发,以丙酮为分散相,进行反应。探索了多种催化剂,寻找最佳催化剂;通过实验确定以磷酸钠作为催化剂。以此基础上,探索不同浓度的辛烯基琥珀酸酐(OSA)对反应取代度的影响,寻找合适的反应条件。最适宜的反应条件为:OSA反应浓度为0.6 mol/L,需要的丙酮体积为150 mL,磷酸钠质量为7 g,加热温度为40℃,加热时间为4 h。
Modified starch industry has a good domestic market prospect. Being non-toxic side effects on the human body, octenyl succinate starch ester is a very important pro-fat modified starch, with emulsifying stability and good effect. As a new food additive, it can be used in various industries, and become the safety of GM additives. In this study, starting from the reaction mechanism, using acetone as the dispersed phase, the experiment was performed. Sodium phosphate was identified as a catalyst for reaction through a number of experiments. Based on this, the most appropriate reaction conditions were found, through explorating the effect of different concentrations of octenyl succinic anhydride on degree of substitution. The most appropriate reaction conditions are as follows： the concentration of OSA is 0.6 mol/L, the volume of acetone is 150 mL, the amount of sodium is 7 g, heating temperature is 40 ℃ and heating time is 4 h.
出处
《化学工业与工程》
CAS
2009年第5期404-408,共5页
Chemical Industry and Engineering
关键词
有机合成
辛烯基琥珀酸淀粉酯
催化剂
organic synthesis
octenyl succinate starch ester
catalyst
