Yeast protein isolate with reduced nucleic acid content and process of making same

This disclosure relates to a yeast protein isolate (IYP) with less than 9% nucleic acid (RNA) and a Protein Equivalence Ratio (PER) of greater than 1. The yeast protein is made by a process which involves rupturing yeast cells, removing the cell wall residue from an alkaline medium, incubating in su...

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Hauptverfasser: ROBBINS, ERNEST ALECK, SCHULDT, JR., ERICH HENRY, SUCHER, ROBERT WILLIAM, SIDOTI, DANIEL ROBERT, NEWELL, JON ALBERT, SEELEY, ROBERT DUDLEY
Format: Patent
Sprache:eng
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Zusammenfassung:This disclosure relates to a yeast protein isolate (IYP) with less than 9% nucleic acid (RNA) and a Protein Equivalence Ratio (PER) of greater than 1. The yeast protein is made by a process which involves rupturing yeast cells, removing the cell wall residue from an alkaline medium, incubating in such a manner that the endogenous nuclease contained in the solubles portion degrades the nucleic acid present to a soluble form, insolubilizing the protein to separate it from the hydrolyzed nucleic acid, and separating the insoluble protein from the fraction containing soluble nucleic acid.