活性炭-新磷酸钙对玉米芯低聚木糖脱色工艺优化  

Process Optimization of Decolorization of Xylooligosaccharide from Corn Cob by Activated Carbon-New Calcium Phosphate

作　　者：宋娜[1] 李竹生[1] SONG Na;LI Zhusheng(Zhengzhou Technical College,Zhengzhou 450121)

机构地区：[1]郑州职业技术学院,郑州450121

出　　处：《食品工业》2020年第6期32-36,共5页The Food Industry

基　　金：河南省高等学校青年骨干教师培养资助项目(2016GGJS-292)。

摘　　要：采用活性炭-新磷酸钙体系对高温蒸煮玉米芯酶法制备的低聚木糖进行脱色工艺研究。经过单因素试验和响应面分析,得出玉米芯低聚木糖脱色最佳工艺条件为:活性炭添加量2.00 g/L、氢氧化钙添加量3.00 g/L,脱色温度49℃,脱色时间31 min,初始pH 4.6。此时,低聚木糖脱色率可达到90.88%,还原糖损失率为5.16%。The decolorization process of xylo-oligosaccharides from corncob was studied by using activated carbon-new calcium phosphate system.By single factor experiment and response surface analysis,the results showed that the optimum decolorization condition for xylo-oligosaccharides from corncob was activated carbon 2.00 g/L,calcium hydroxide 3.00 g/L,temperature 49℃,time 31 min and pH 4.6.Under this condition,the decolorization rate was 90.88%and loss of reducing sugar rate was 5.16%.

关 键 词：活性炭 新磷酸钙 低聚木糖 脱色 

分 类 号：TS244[轻工技术与工程—制糖工程]