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US 4,361,586 AGranted
Vacuum enzymatic digestion of protein material
OwnerWilmon W. Meinkeinventor
Life of this patent
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Abstract
An improved process for enzymatic hydrolysis of mammal, fish and plant protein containing material characterized by the utilization of vacuum conditions during the hydrolyzing phase of the process to selectively remove the odoriferous compounds.
Claims7
A process for enzymatic hydrolysis of animal or vegetable protein containing matter to produce a protein concentrate product comprising:
- (a) contacting in a reaction vessel under 5-26" Hg vacuum enzymes and said protein containing matter which has been comminuted to 1/2" or less diameter in a weight ratio of 0.00025-0.004 in an aqueous solution having a pH and temperature adjusted to achieve enzymatic hydrolysis of said protein containing matter to produce an aqueous protein rich digest product, undigested residue solids product and a vapor stream;
- (b) removing said vapor stream from said reaction vessel;
- (c) adjusting pH of the remaining mixture of aqueous digest product and undigested residue solids product in said reaction vessel to a level of 6 to 8;
- (d) elevating said temperature in said reaction vessel to a level necessary to deactivate said enzymes;
- and
- (e) separating said aqueous digest from said undigested residue solids to obtain an aqueous digest stream.
3 more elements
A process according to claim 3 wherein said enzyme and said protein containing matter are stirred during said contacting.
A process according to claim 5 wherein said alkaline reagent is either NaOH, KOH, CaO, Ca(OH).sub.2, Na.sub.2 CO.sub.3 CaCO.sub.3 or mixtures thereof.
Dependencies are inferred from the claim text.