Methionine recovery processes
AssigneeNovus International, Inc.
InventorsSteve Lorbert, Charles Schasteen, Farooq Uraizee, Jennifer Wu
Life of this patent
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Abstract
The present invention relates to a method of making a methionine preparation, for example for an animal feed additive. The invention also related to methods for increasing the solubility of a methionine preparation.
Claims31
A method of increasing the solubility of methionine in a methionine preparation comprising adding an acid or a base into said methionine preparation.
A method of increasing the solubility of methionine in a methionine preparation comprising increasing temperature of said methionine preparation to at least 40° C.
A method of making a methionine preparation comprising:
- (a) culturing a methionine-producing microorganism in a fermentation medium to yield a fermentation broth;
- (b) solubilizing methionine in said fermentation broth by raising the pH 8.5 or above, or lowering the pH to 3.5 or below;
- (c) removing insoluble material from said fermentation broth to yield a clarified broth;
- (d) crystallizing methionine from said clarified broth;
- and,
- (e) isolating the methionine crystals to produce a methionine preparation.
A method of making a methionine preparation comprising:
- (a) culturing a methionine-producing microorganism in a fermentation medium to yield a fermentation broth;
- (b) solubilizing methionine in said fermentation broth by raising the temperature of the broth to at least 40° C.;
- (c) removing insoluble material from said fermentation broth to yield a methionine-enriched clarified broth;
- (d) crystallizing methionine from said clarified broth;
- and,
- (e) isolating the methionine crystals to produce a methionine preparation.
A method of making a methionine preparation comprising:
- (a) culturing a methionine-producing microorganism in a fermentation medium to produce a fermentation broth;
- (b) collecting methionine-enriched insoluble material from said fermentation broth;
- (c) solubilizing methionine from said methionine-enriched insoluble material by addition of an acid to lower the pH to 3.5 or below, or a base to raise the pH to 8.5 or above to produce a methionine-enriched broth;
- (d) crystallizing methionine from said methionine-enriched broth;
- and,
- (e) isolating the methionine crystals to produce a methionine preparation.
A method of making a methionine preparation comprising:
- (a) culturing a methionine-producing microorganism in a fermentation medium;
- (b) obtaining a methionine-containing fermentation broth from said culturing, wherein the pH of said fermentation broth is adjusted to an acidic pH or basic pH;
- and
- (c) concentrating said methionine-containing fermentation broth and optionally drying to produce a methionine preparation.
A method of making a methionine preparation comprising:
- (a) culturing a methionine-producing microorganism in a fermentation medium;
- (b) obtaining a methionine-containing fermentation broth from said culturing, wherein the pH of said fermentation broth is adjusted to an acidic pH or basic pH;
- and
- (c) removing from said methionine-containing fermentation broth to produce a methionine preparation.
A method of producing a feed additive, comprising:
- (a) culturing a methionine-producing microorganism in a fermentation medium to produce a fermentation broth;
- and,
- (b) drying said fermentation broth to obtain an animal feed additive in the desired powder or granule form.
Dependencies are inferred from the claim text.