【摘要】 分别考察了不同浓度的乙醇水溶液、浸取温度、浸出时间和料液比的操作工艺条件对棉籽糖浸取率的影响。结果表明,低浓度的乙醇水溶液、较高的温度、较长的浸出时间、较大的料液比有利于棉籽糖的浸出。较佳的操作条件为:乙醇溶液浓度为80%,提取温度为55℃,浸出时间为2.5h,提取料液比为1:12(W/V),棉籽糖的浸出率可达90%以上。更多还原

【Abstract】 Raffinose is soluble in water,acetone,ethanol-water solution and other polar soutions.Protein of cottonseed meal is also dissolved.Therefore,ethanol-water solution was chosen as a solvent to leach raffinose of cottonseed meal.The leaching rate of raffinose were investigated under different ethanol concentrations in ethanol-water solution,leaching temperature,extraction time and cottonseed-meal/ sovent ratio.The results showed that lower concentrations of ethanol-water,higher temperature,longer time,larger cottonseed-meal/ solvent ratio comduce to increasing raffinose leaching yield.Better operating conditions was ethanol concentration of 80%, temperature of 55℃ extraction,time of 2.5h extraction,solid-liquid ratio of 1:12.The extraction rate of raffinose was to 90%.更多还原