【摘要】 以蝇蛆壳为原料提取甲壳素,并用盐酸除无机盐、氢氧化钠除蛋白质、次氯酸钠脱色。实验确定较佳工艺条件为:除无机盐,m(蝇蛆壳):V(HCl)=1g:5mL(c(HCl)=2mol/L),室温反应2h;除蛋白质,m(蝇蛆壳):V(NaOH)=1g:5mL(w(NaOH)=2%),室温下反应6h。经质量分数为0.5%的NaClO室温3h脱色后得到白色的甲壳素,收率30%(以干燥蝇蛆壳质量计)。更多还原

【Abstract】 Chitin is extracted from housefly harva, and use hydrochloric acid and sodium oxide to remove the protein and sodium hypochloride for decolouring. The best process conditions is as followsing: removal of inorganic salts, m(housefly harva):V(HCl)=1 g:5 mL(c(HCl)=2 mol/L),room temperature reaction 2 h;in removal of protein,m(housefly harva):V(NaOH)=1 g:5 mL(w(NaOH)=2%),react 6 h under room temperature. It is decolored 3 h by 0.5% NaClO to get white chitin with 30% in yield(based on dry housefly harva).更多还原