Method of treating soy proteins and soy protein product produced by this method

A method of treating a proteinaceous material having a first concentration of glycinin, the method comprising:

• combining the proteinaceous material with an enzyme to form a reaction mixture, the reaction mixture initially having a pH of at least about 7.0 standard pH units;
• allowing the enzyme to hydrolyze glycinin present in the reaction mixture to form a proteinaceous intermediate;
• and
• inactivating the enzyme present in the reaction mixture after a reaction period to form a proteinaceous product, the proteinaceous product having a second concentration of glycinin, the second concentration of glycinin being at least about 50 percent less than the first concentration of glycinin.

A method of treating a proteinaceous material having a first Protein Dispersability Index, the method comprising:

• combining the proteinaceous material with an enzyme to form a reaction mixture, the reaction mixture initially having a pH of at least about 7.0 standard pH units;
• allowing the enzyme to hydrolyze protein present in the reaction mixture to form a proteinaceous intermediate;
• and
• inactivating the enzyme present in the reaction mixture after a reaction period to form a proteinaceous product, the proteinaceous product having a second Protein Dispersability Index, the second Protein Dispersability Index being at least about 20 percent greater than the first Protein Dispersability Index.

A method of treating a proteinaceous material, the method comprising:

• combining the proteinaceous material with water to form a slurry;
• adjusting the pH of the slurry to greater than about 8.5 standard pH units;
• combining an alkaline proteolytic enzyme with the slurry;
• and
• permitting the alkaline proteolytic enzyme to hydrolyze protein contained in the slurry to form a proteinaceous product.

A method of treating a proteinaceous material, the method comprising:

• combining the proteinaceous material with an enzyme to form a reaction mixture, the reaction mixture initially having a pH of at least about 7.0 standard pH units;
• allowing the enzyme to hydrolyze protein present in the reaction mixture to form a proteinaceous intermediate;
• and
• inactivating the enzyme present in the reaction mixture after a reaction period to form a proteinaceous product, the enzyme derived from a genetically modified strain of bacteria belonging to the species subtilis of the genus Bacillus.

A method of treating a proteinaceous material, the method comprising:

• combining the proteinaceous material with an enzyme to form a reaction mixture, the reaction mixture initially having a pH of at least about 7.0 standard pH units;
• allowing the enzyme to hydrolyze protein present in the reaction mixture to form a proteinaceous intermediate;
• and
• inactivating the enzyme present in the reaction mixture after a reaction period to form a proteinaceous product, the enzyme belongs to the species subtilis of the genus Bacillus or belongs to the species amyloliquefaciens of the genus Bacillus.

A method of treating a proteinaceous material, the method comprising:

• combining the proteinaceous material with an enzyme to form a reaction mixture, the reaction mixture initially having a pH of greater than about 8.5 standard pH units;
• allowing the enzyme to hydrolyze protein present in the reaction mixture to form a proteinaceous intermediate;
• and
• inactivating the enzyme present in the reaction mixture after a reaction period to form a proteinaceous product, the enzyme being either a (1) first naturally-occurring protease or (2) a recombinant protease, the recombinant protease directly or indirectly derived from a second naturally-occurring protease from any source or from a naturally-occurring peptide hydrolase from any source.