Soy derived materials such as soy milk, soy flour, soy concentrates, and soy protein isolates, are deflavored by adjusting the pH of an aqueous composition of such soy derived materials to about 9 to about 12 to solubilize the soy proteins and to release the flavoring compounds and thereafter passing the pH-adjusted composition to an ultrafiltration membrane having a molecular weight cutoff up to about 50,000 Daltons under conditions at which the flavoring compounds pass through the membrane, leaving the retained soy material with improved flavor.
大豆衍生材料(如豆奶、豆粉、大豆浓缩物和大豆分离蛋白)的去味方法是:将这些大豆衍生材料的
水溶液组合物的 pH 值调节到约 9 至约 12,以溶解大豆蛋白并释放调味化合物,然后将 pH 值调节后的组合物通过超滤膜,超滤膜的截留分子量可达约 50,000 道尔顿,在此条件下,调味化合物可通过超滤膜,使保留的大豆材料具有更好的风味。