摘要
探讨超声波预处理反应原料脱乙酰化制备壳聚糖的适宜条件。甲壳素和50%NaOH经超声波预处理1h后,在90℃下搅拌反应10h,获得壳聚糖的脱乙酰度为88.89%,黏度为98cp。本工艺仅对反应原料进行超声波预处理,不必改变传统制备工艺条件,产品脱乙酰度提高10%以上。
The suitable conditions of chitosan preparation by deacetylation of chitin under ultrasonic pretreatment on raw material were discussed. The mix solution of chitin and 50% NaOH were treated with ultrasonic for 1 hour, then the deacetylation reaction lasted 10 hours at 90℃. In this way, the deacetylation degree of prepared chitosan is 88.89% and viscosity is 98 cp. Compared with the traditional method, it does not change the condition of traditional process but the ultrasonic pretreatment on raw material, and increases the deacetylation degree more than 10%.
出处
《食品科技》
CAS
北大核心
2009年第8期224-227,共4页
Food Science and Technology
关键词
甲壳素
壳聚糖
超声波
脱乙酰度
黏度
chitin
chitosan
ultrasonic pretreatment
deacetylation degree
viscosity
