Cottonseed as raw material was processed by two-phase solvent extraction.Non-toxic crude protein was produced, and at the same time the nonpolar solution containing high quality crude cottonseed oil was used for trans...Cottonseed as raw material was processed by two-phase solvent extraction.Non-toxic crude protein was produced, and at the same time the nonpolar solution containing high quality crude cottonseed oil was used for transesterification reaction with methanol to produce fatty acid ester and glycerol.The effect of mass ratio of petroleum ether to crude cottonseed oil on the fatty acid ester content and the quantity of water needed for washing the product were investigated.It was confirmed that the best mass ratio of petroleum ether to crude cottonseed oil was 3.Under this condition, the water consumption was halved.The effect of methanol/oil molar ratio, catalyst amount, reaction temperature and time were also studied.Through orthogonal analysis, the optimum conditions were obtained as follows: the molar ratio of methanol to oil 6∶1, the amount of catalyst 1.1%, reaction temperature 60℃ and reaction time 120 min.The results of parallel tests showed that under such optimum condition the cottonseed oil conversion could reach 97.7%.展开更多
用双液相萃取工艺处理后的棉籽粕为原料,乙醇-水溶液为溶剂进行了棉子糖的提取试验,并考察了影响浸出率的因素。在单因素实验的基础上,通过正交实验得出优化后的提取工艺条件为:乙醇体积分数为70%,提取温度60℃,提取时间150 m in,物料...用双液相萃取工艺处理后的棉籽粕为原料,乙醇-水溶液为溶剂进行了棉子糖的提取试验,并考察了影响浸出率的因素。在单因素实验的基础上,通过正交实验得出优化后的提取工艺条件为:乙醇体积分数为70%,提取温度60℃,提取时间150 m in,物料溶剂比1∶14(即每克物料需14 mL溶剂)。在此工艺条件下,棉子糖的浸出率为92.5%。展开更多
文摘Cottonseed as raw material was processed by two-phase solvent extraction.Non-toxic crude protein was produced, and at the same time the nonpolar solution containing high quality crude cottonseed oil was used for transesterification reaction with methanol to produce fatty acid ester and glycerol.The effect of mass ratio of petroleum ether to crude cottonseed oil on the fatty acid ester content and the quantity of water needed for washing the product were investigated.It was confirmed that the best mass ratio of petroleum ether to crude cottonseed oil was 3.Under this condition, the water consumption was halved.The effect of methanol/oil molar ratio, catalyst amount, reaction temperature and time were also studied.Through orthogonal analysis, the optimum conditions were obtained as follows: the molar ratio of methanol to oil 6∶1, the amount of catalyst 1.1%, reaction temperature 60℃ and reaction time 120 min.The results of parallel tests showed that under such optimum condition the cottonseed oil conversion could reach 97.7%.
文摘用双液相萃取工艺处理后的棉籽粕为原料,乙醇-水溶液为溶剂进行了棉子糖的提取试验,并考察了影响浸出率的因素。在单因素实验的基础上,通过正交实验得出优化后的提取工艺条件为:乙醇体积分数为70%,提取温度60℃,提取时间150 m in,物料溶剂比1∶14(即每克物料需14 mL溶剂)。在此工艺条件下,棉子糖的浸出率为92.5%。