摘要
用正交试验等方法优选壳聚糖生产中脱钙、脱蛋白质、脱乙酸基等工序的工艺条件。试验结果表明：用体积分数为3％的HCl脱钙15h可使制品的灰分含量＜1％；用质量分数为8％的NaOH煮沸90min脱蛋白质，可使制品总氮含量＜7％；在碱质量分数为42％、物料与碱液配比为1∶40、80℃保温18h的条件下，制品粘度＞2000mPa．s．脱乙酰度＞80％。
Optimizing the technology of chitosan production by means of orthogonal experiment during the production process of decalcification, deproteinization, deacetylation. The result shows that, in the final product, the ash conlent is less than 1 % after decalcifying by 3% HCl for 15 hours,and also after deprotenizing the total nitrogen content is less than 7 % by boiling 8 % NaOH for 90 minutes. The viscosity, the degree of deacetylation of product. is respectively more than 2 000 mPa's and 80% under the conditions of the proportion is 1: 40 between the material and the alkaline liquor with the concentration of 42% which keeps warm at 80℃ for 18 hours.
出处
《湛江海洋大学学报》
CAS
1997年第2期58-61,共4页
Journal of Zhanjiang Ocean University
关键词
虾壳
壳聚糖
粘度
脱乙酰度
工艺
Prawn shell Chitosan Viscosity Degree of deacetylation
