Ralston Purina Company

Protein Technologies Int'l Inc.

David A Singer

Santa H Lin

Myong J Cho

Theodore M Wong

A short chain peptide material is provided containing a peptide material derived from a protein material. At least a majority of the peptides in the peptide material have a peptide chain length of 7 peptides or less. The peptide material is at least 95% soluble in an aqueous solution having a pH at which the protein material from which the peptide material is derived is insoluble. A process for forming the short chain peptide material is also provided. A slurry is formed of a protein material at a pH at which the protein material is substantially insoluble. The protein material is contacted with an enzyme having substantial endopeptidase activity and substantial exopeptidase activity at a temperature and for a time sufficient to form the peptide material of the invention.

Short-chained peptide material

The present invention relates to an enzymatically modified dietary fiber material particularly a soy fiber material of improved sensory properties including smoothness and mouthfeel characteristics. The modified fiber is formed by forming an aqueous slurry of a soy dietary fiber material and modifying or hydrolyzing the material with a process modifying dietary soy fiber and the resulting enzyme mixture which comprises a mixture of a cellulase and a carbohydrase. The degree of hydrolysis is sufficient to improve the sensory properties of the soy fiber material without substantially reducing the dietary fiber content thereof.

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St. Louis, MO, United States of America

David A Singer