The aqueous enzymatic treatment has showed efficient in the degradation of the vegetable cell walls, propitiating bigger yield in the oil extraction, improvements in the bran nutricional quality and increase in the product stability. This work evaluated the commercial enzyme performance (Alcalase - protease - and Celluclast - cellulase) in the aqueous process of soybean oil extration, as well as the influence of the enzymes concentration, the extraction time and the dilution of the sample (soybean) in the final yield. Four experiments of extration were carried through and the results had been gotten from an factorial planning 2³. The statistics analysis showed that the most significant variable of all extration process was the sample dilution (1:20). The yield income of the process of aqueous extration was inferior to the process of solvent extraction. The increase in the enzymatic concentration and in the extraction time favored the yield. Of used enzymes, the Alcalase presented better efficiency in the extration, being that the use of two enzymes simultaneously propitiated significant increment on the process yield.
protease; cellulase; dilution; yield
