TY - GEN AU - Adel Gabr Abd El razek Sallam AU - Fathallah Abd El salam Elwakeil , AU - Mohamed Mahmoud Hassan Elmallah , AU - Sami Mohamed Galal , TI - Utilization of silica hydrogel in the degumming of soybean oil / PY - 2005/// CY - Cairo : PB - Adel Gabr Abd El razek Sallam , KW - Silica hydrogel KW - Soybean oil N1 - Thesis (PH.D.) - Cairo University - Faculty Of Agriculture - Department Of Food Science and Technology; Issued also as CD N2 - of all kinds of impurities is done in a series of processes , which together are called refiningPhospholipids are emulsifying agents , and consequently , if not removed , at the first step , are responsible for high losses and poor - quality products in subsequent refining steps UR - http://172.23.153.220/th.pdf ER -