improved production of soy protein solutions. soy protein products which can be reconstituted to provide a preferred acidic aqueous solution with clarity are produced by extracting a soy protein source with an aqueous calcium chloride solution to cause solubilization of the soy protein to from soy protein source resulting from residual soy protein source. or, within about 20 minutes of the separation step, the aqueous soy protein solution is diluted to a conductivity of less than about 9 ms and the pH of the aqueous soy protein solution is adjusted to about 1 0.5 to about 4.4 to produce an acidified soy protein solution having a visible light absorbance at 600 nm (a600) of less than about 0.055, or, within about 40 minutes of the separation step, the aqueous soy protein solution is diluted to a conductivity of less than about 90 ms, the ph of aqueous soy protein solution is adjusted to about 1.5 to about 4.4, the acidified soy protein solution Soybean is heat treated at a temperature of about 343.15k to about 433.15k for about 10 seconds to about 3600 seconds to produce an acidified soy protein solution having a visible light absorbance at 600nm (a600). less than about 0.055. The resulting acidified soy protein solution can be directly dried or further processed by concentration and diafiltration. each of the process steps is preferably carried out at a temperature of from about 323.15 k to about 333.15 k.melhoria da produção de soluções de proteína de soja. produtos de proteína de soja, que podem ser reconstituídos para proporcionar uma solução aquosa ácida com nível preferido de clareza são produzidos através da extração de uma fonte de proteína de soja com uma solução aquosa de cloreto de cálcio para provocar a solubilização da proteína de soja a partir de fonte de proteína de soja resultante a partir da fonte de proteína de soja residual. ou, no prazo de cerca de 20 minutos do passo de separação, a solução aquosa de proteína de soja é diluída para uma condutivid
