摘要
对发酵法生产曲酸中提取流程及脱色工艺进行了研究 .获得了曲酸在不同温度下的溶解度以及脱色过程中活性炭的种类、用量、脱色温度 ,最佳脱色 pH值等工艺条件 ,针对与曲酸有络合作用的Fe3+ 等金属离子采用了强酸型阳离子树脂脱色的工艺 ,通过不同提取流程的比较选择 ,获得 91 .8%的脱色效果与 72 .4 %的产品得率 .
In this article, extracting procession and depigmentation on kojic acid production were studied.The solubility of kojic acid, type of active carbon as depigmentary agent,dosage,temperature and pH value were studied. For removing the chelated Fe 3+ and other metal ions on kojic acid, the cation exchange resin 732 could be used.After comparing four different extracting processions, the optimum depigmentation rate 91.8% and the expecting recovery yield 72.4% were abtained.
基金
国家轻工业局轻工业科技发展计划项目! (轻科 960 50 )
