The present invention is directed to a process to provide soy base (5, 11) from soybeans (1) comprising the following steps: a. Providing an aqueous slurry comprising ground soybeans (3)； b. Separating (4) the slurry (3) provided at step 'a' into a first fraction (6) rich in insoluble soybean parts and a liquid second fraction (5) poor in insoluble soybean parts, using a suitable separation means； c. Adjusting the water content (7) of the first fraction (6) to provide from 1 to 20 wt. % of total solids (8)； d. Subjecting the first fraction (8), with from 1 to 20 wt.% of total solids to ultrasonic treatment (9), wherein the ultrasonic treatment is applied at a frequency of from 16 to 100 kHz, with an average energy input of at least 5 Joules per milliliter of said first fraction (8)； e. Separating (10) the ultrasonic treated first fraction (8) into a third fraction (12) rich in insoluble soybean parts and a liquid fourth fraction (11) poor in insoluble soybean parts, using a suitable separation means； wherein the soy base is provided as the liquid second (5) and liquid fourth fraction (11). It was found that the process according to the invention results in a more efficient process to provide soy base and extract one or more water-soluble and/or water-dispersible compounds from soybeans, such as proteins, carbohydrates (such as sugars, oligosaccharides and soluble dietary fibers), oils, vitamins, minerals, carotenoids, and isoflavones.La presente invención se refiere a un proceso para proveer una base de soja a partir de semillas de soja, caracterizado porque comprende los siguientes pasos: a. proveer una pasta acuosa que comprende semillas de soja trituradas； b. separar la pasta provista en el punto "a" en una primera fracción rica en partes insolubles de semilla de soja y una segunda fracción líquida pobre en partes insolubles de semilla de soja, a través del uso de un medio de separación adecuado； c. ajustar el contenido de agua de la primera fracción para proveer
