机构地区: 清华大学环境学院
出 处: 《离子交换与吸附》 2004年第1期62-69,共8页
摘 要: 实验研究和理论分析表明:吸附原料液的溶液体系非常复杂,其中大豆异黄酮含量很低,而干扰溶质种类多且含量高,所以在应用大孔树脂对大豆异黄酮的吸附分离中会同时存在多种不利因素。其中的大豆乳清蛋白、大豆低聚糖和大豆皂甙各自由于不同的原因而可能对大豆异黄酮的吸附产生较大的影响。在分析了这些影响因素的基础上,经实验研究所开发的“两级吸附”工艺充分发挥了大豆异黄酮的吸附优势,得到了纯度高于42%的大豆异黄酮产品,树脂吸附的回收率在75%以上。 Experimental research and theoretical analysis showed that, due to the great complexity of the adsorption material solution, the adsorption and separation of low-content soybean isoflavones from soy whey wastewater would be affected by a lot of factors. In the system, whey soy proteins, soybean oligosaccharides and soybean saponins would badly influence the adsorption process because of their different reasons. Based on analysis and experiments, a Two-Stage Adsorption process was worked out, bringing out soybean isoflavone product with purity of more than 42%, and the recovery ratio of soybean isoflavones in this process was above 75%.