摘要
借助氢氧化钠和尿素作用共同破坏玉米淀粉内氢键,促进玉米淀粉在冷水中的溶解性能。利用正交实验,通过考察溶液体系透光率,获得最优溶解体系。当体系固含量为10%时,5 g玉米淀粉中加入16.8%氢氧化钠(以淀粉质量计)和12%尿素(以淀粉质量计)搅拌10 min,体系透光率可达80%左右,玉米淀粉能较好地溶解在冷水中。
The solubility property can be improved by the adding of sodium hydroxide and urea ,because they can break the intramolecular hydrogen bonds of starch. The orthogonal experiment has been designed to get the optimal conditions of solubility with the light transmittance.It＇s clear that when the solid content is 10%, 5 g corn starch can be solved wel1 by adding 0.021 g sodium hydroxide and 0.6 g urea for 10 min stirring. The light transmittance can achieve 80%.
出处
《皮革科学与工程》
CAS
2017年第4期15-18,共4页
Leather Science and Engineering
基金
基金项目:四川大学2017校级科研训练(2014141502049)
关键词
氢氧化钠
尿素
淀粉
溶解
sodium hydroxide
urea
starch
solubility
