Robert O Horwath

US Patent:

44566220, Jun 26, 1984

Filed:

Dec 6, 1982

Appl. No.:

6/447047

Inventors:

John A. Maselli - Wilton CT
Robert O. Horwath - Westport CT

Assignee:

Nabisco Brands, Inc. - Parsippany NJ

International Classification:

C12J 100
C12P 754

US Classification:

426 17

Abstract:

Vinegar having an acetic acid content of 18-20% is produced by aerobic bacterial oxidation of ethanol in a combination of semi-continuous fermentation and batch fermentation. The semi-continuous fermentation provides 10-12% vinegar, a portion of which is then converted to 18-20% vinegar in a batch fermentor operating at a temperature substantially lower than that employed in the semi-continuous fermentation. Gas is admixed with the fermentation mixture prior to its being subjected to microfiltration or ultrafiltration during its transfer from the semi-continuous fermentor to the batch fermentor.

US Patent:

44422075, Apr 10, 1984

Filed:

Jun 30, 1982

Appl. No.:

6/393850

Inventors:

Robert O. Horwath - Westport CT
Osama O. Ibrahim - Brookfield CT

Assignee:

Nabisco Brands, Inc. - Parsippany NJ

International Classification:

C12P 1902
C12N 904
C12R 1645

US Classification:

435105

Abstract:

Glucose-2-oxidase activity is produced by cultivating certain fungi of the Basidiomycetes class and the enzyme is employed in the oxidation of glucose to glucosone which can be converted to fructose.

US Patent:

43213235, Mar 23, 1982

Filed:

Jun 18, 1980

Appl. No.:

6/160758

Inventors:

John A. Maselli - Wilton CT
Robert O. Horwath - Westport CT

Assignee:

Standard Brands Incorporated - New York NY

International Classification:

C12P 726
C12P 1902

US Classification:

435105

Abstract:

Disclosed are methods of producing glucosone which comprises enzymatically oxidizing glucose with glucose-2-oxidase in a first zone and separating the concomitantly produced hydrogen peroxide from said first zone through a semi-permeable membrane into a second zone, said membrane being permeable only to compounds of a molecular weight of less than about 100.

US Patent:

44736452, Sep 25, 1984

Filed:

Mar 30, 1983

Appl. No.:

6/480428

Inventors:

Robert O. Horwath - Westport CT

Assignee:

Nabisco Brands, Inc. - Parsippany NJ

International Classification:

C12N 928
C12R 110

US Classification:

435202

Abstract:

Improved production of. alpha. -amylase is realized by cultivating B. licheniformis ATCC No. 39326 in nutrient medium therefor, especially when medium contains lactose.

US Patent:

44670338, Aug 21, 1984

Filed:

Jun 30, 1982

Appl. No.:

6/393847

Inventors:

Robert O. Horwath - Westport CT
William J. Colonna - Wilton CT

Assignee:

Nabisco Brands, Inc. - Parsippany NJ

International Classification:

C12P 1902
C12N 1500
C12N 904

US Classification:

435105

Abstract:

Process for preparing L-fructose from L-sorbitol by contacting L-sorbitol with D-iditol dehydrogenase produced by a mutant microorganism of the genus Pseudomonas cultivated in the absence of an inducing polyol.

US Patent:

45686386, Feb 4, 1986

Filed:

May 16, 1983

Appl. No.:

6/495194

Inventors:

Robert O. Horwath - Westport CT

Assignee:

Nabisco Brands, Inc. - Parsippany NJ

International Classification:

C12Q 104
C12Q 102
C12R 1645

US Classification:

435 34

Abstract:

A process for screening microorganisms to identify those microorganisms capable of the production of glucose-2-oxidase is disclosed. Microorganisms are cultured on a solid medium. Those capable of producing glucose-2-oxidase are identified by reaction of the hydrogen peroxide surrounding each such microorganism with a hydrogen peroxide indicating reagent. The process is particularly useful for the early detection of glucose-2-oxidase activity in slow growing strains of microorganisms such as Basidiomycetes.

US Patent:

44475314, May 8, 1984

Filed:

Jun 30, 1982

Appl. No.:

6/393849

Inventors:

Robert O. Horwath - Westport CT
Robert M. Irbe - Norwalk CT

Assignee:

Nabisco Brands, Inc. - Parsippany NJ

International Classification:

C12P 1924
C12P 1920
C12R 1645

US Classification:

435 94

Abstract:

Glucose isomerase is produced by cultivating fungi of the Basidiomycetes class and is used for isomerizing glucose to fructose.

US Patent:

44106270, Oct 18, 1983

Filed:

Jun 30, 1982

Appl. No.:

6/393848

Inventors:

Norman E. Lloyd - Clinton IA
Robert O. Horwath - Westport CT

Assignee:

Nabisco Brands, Inc. - Parsippany NJ

International Classification:

C12P 1924

US Classification:

435 94

Abstract:

A process is provided for the enzymatic isomerization of a glucose-containing liquor to provide a high quality glucose-fructose syrup of from about 53 to about 60 weight percent fructose based on the glucose of the original feed without the need for fractionation and recycle operations. The process features careful adjustment of original glucose concentration, pH and contact times of glucose with glucose isomerase at a temperature of 90. degree. C. to 130. degree. C. to attain high fructose content without the formation of undue amounts of psicose and sugar degradation products.