Protein hydrolysate and method for making a protein hydrolysate
Disclosed is a simplified method for producing a protein hydrolysate, the method having the advantages of decreasing costs associated with energy, materials, and space as compared to that of conventional methods. A protein hydrolysate/enzyme composition is also disclosed.
1. A method for producing a hydrolyzed whey protein product, the method comprising:
a) admixing at least one proteolytic enzyme with at least one whey protein to produce a protein/enzyme admixture, and
b) holding the protein/enzyme admixture for a period of time from about 1 to about 72 hours under agitation to produce a protein hydrolysate/enzyme admixture, wherein the method does not comprise the step of adjusting the pH to optimize the activity of, or to deactivate, the at least one proteolytic enzyme.
2. The method of claim 1 further comprising the step of drying the protein hydrolysate/enzyme admixture.
3. The method of claim 2 wherein the step of drying the protein hydrolysate/enzyme admixture is performed by spray-drying.
4. The method of claim 1 wherein the whey protein comprises a solution of at least about 30 percent w/v.
5. The method of claim 1 wherein the period of time during which the protein/enzyme admixture is held comprises from about 4 to about 8 hours.
6. The method of claim 1 wherein the period of time during which the protein/enzyme admixture is held comprises from about 6 to about 8 hours.
7. The method of claim 1 wherein the period of time during which the protein/enzyme admixture is held comprises from about 6 to about 24 hours.
8. The method of claim 1 wherein the period of time during which the protein/enzyme admixture is held comprises from about 6 to about 72 hours.
9. The method of claim 1 wherein the protein/enzyme admixture is held at a temperature of from about 33 to about 50 degrees Fahrenheit.
10. The method of claim 1 wherein the at least one proteolytic enzyme is selected from the group consisting of proteolytic enzymes of plant, animal, fungal, algal, and bacterial origin, and combinations thereof.
11. The method of claim 1 , wherein step (a) is performed without heating the protein, at least one proteolytic enzyme, protein/enzyme admixture, or a combination thereof, to increase the activity of the enzyme in the protein/enzyme admixture.
12. The method of claim 1 , wherein the protein hydrolysate/enzyme admixture is not heated to deactivate the enzyme during step (b).