Chemistry: natural resins or derivatives; peptides or proteins; – Proteins – i.e. – more than 100 amino acid residues
Reexamination Certificate
2007-03-01
2011-11-29
Minnifield, Nita M (Department: 1645)
Chemistry: natural resins or derivatives; peptides or proteins;
Proteins, i.e., more than 100 amino acid residues
C424S185100, C424S234100, C536S023100, C536S023700, C435S252300
Reexamination Certificate
active
08067538
ABSTRACT:
The present invention is to obtain a novel gene that encodes a protein having a function of promoting acetic acid bacterial growth in the presence of a high concentration of acetic acid; to enhance acetic acid bacteria's function of promoting growth and thereby to develop acetic acid bacteria with an improved fermentation ability in the presence of a high concentration of acetic acid; and to provide a method for efficiently producing vinegar that contains a high concentration of acetic acid in a short time using the acetic acid bacterium. A novel gene having a function of improving the function of promoting growth at a practical level was cloned from acetic acid bacteria for practical use, belonging to the genusGluconacetobacter, by a method comprising exposing acetic acid bacterial lysate to the presence of a high concentration of acetic acid; obtaining a gene of a protein that was not insolubilized but remained soluble; and thereby obtaining a gene having a function of promoting acetic acid bacterial growth in the presence of acetic acid. When cultured in the presence of acetic acid and ethanol, a transformant of acetic acid bacteria transformed with the gene was confirmed to have a significant effect of promoting growth.
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Brivanlou Margaret B.
King & Spalding LLP
Minnifield Nita M
Mizkan Group Corporation
Sonnenfeld Kenneth H.
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