对硫酸水解冰糖橙皮渣的工艺进行了初步探讨。单因素实验表明,H2SO4水解冰糖橙皮渣的适宜单因素条件依次为:温度120℃,停留时间60 min,H2SO4浓度0.15 mol/L,液固比10∶1(g∶mL)。以此为基础,设计了L9(34)正交实验,结果表明H2SO4水解冰糖橙皮渣的适宜工艺条件为:H2SO4浓度为0.15 mol/L;液固比(g∶mL)为10∶1;水解温度为120℃;停留时间为90 min,在此条件下获得的还原糖得率高达51.25%,物质失重84.1%。说明采用H2SO4水解冰糖橙皮渣是切实可行的。

The technology of sulfuric acid hydrolysis on orange peel residue products was studied in this paper.Results showed that the optimum condition for single factor experiments was;temperature 120 °C;time 60 min;sulfuric acid concentration 0.15 mol/L;liquid-solid ratio 10:1.Then a L9(34) orthogonal experiment was designed.The results showed the optimum pretreatment was 0.15 mol/L of sulfuric acid;10:1 of liquid-solid ratio;120 °C for 90 min.Under these conditions,the yield of reducing sugar was up to 51.25%,and the weight loss was 84.1%.It indicated that the use of sulfuric acid hydrolysis crystallized sugar marinated orange peel residue was feasible.