Abstract:
Nitrile compounds having a complicated structure (2-hydroxy-4-methylthiobutyronitrile, etc.) are converted into amide compounds at a high production efficiency with the use of novel microorganisms having a specific base sequence as the 16S rRNA gene base sequence. Examples of these microorganisms include Rhodococcus sp. Cr4 strain and Rhodococcus sp. Am8 strain.
Abstract:
A NITRILE COMPOUND HAVING A COMPLICATED STRUCTURE (E.G., 2-HYDROXY-4-METHY/THIOBUTYRONITRI/E) IS CONVERTED INTO -AN AMIDE COMPOUND WITH HIGH PRODUCTION EFFICIENCY, BY USING A NOVEL MICROORGANISM OF WHICH THE GENE 16S RRNA HAS A SPECIFIC BASE SEQUENCE. AS THE MICROORGANISM, RHODOCOCCUS SP. CR4 STRAIN AND RHODOCOCCUS SP. AM4 STRAIN OR THE LIKE IS EMPLOYED.
Abstract:
PROBLEM TO BE SOLVED: To obtain a new nitrilase having ammonia resistance, and useful for production of 2-hydroxy-4-methylthiobutylic acid(HMBA) useful as an additive to a feed. SOLUTION: This new nitrilase is derived from Rhodococcus rhodochrous, and has the following physicochemical properties: action: catalyzing the reaction for hydrolyzing a nitrile group to form a carboxylic acid group and ammonia; molecular weight: 40 kDa (by electrophoresis), or 400 kDa (by gel filtration); substrate specificity: acting on aliphatic, aromatic and heterocyclic nitriles; temperature stability: when treated at pH 6.5 for 15 min, being stable up to 40 deg.C, containing about 40% discernible deactivation at 50 deg.C, and being completely deactivated at 60 deg.C or higher; optimum temperature: about 50 deg.C; stabilizer: 1 mM dithiothreitol or 1 mM mercaptoethanol; inhibitor: deactivated with Hg++, Cu++ or the like; ammonia resistance: not inhibited by 1.5 M ammonium sulfate. Further, the HMBA can be obtained by allowing Rhodococcus rhodochrous B24-1 (FERM P-17515) to act on 2-hydroxy-4-methylthiobutylonitrile.
Abstract:
PROBLEM TO BE SOLVED: To provide a method for producing an adamantane polyol by a regioselective hydroxylation reaction of adamantanol and/or adamantane diol using a microorganism. SOLUTION: Search is intensively carried out on the microorganism for regioselectively hydroxylating the adamantanol and/or the adamantane diol. As a result, a high regioselective hydroxylating activity for the adamantanol and/or the adamantane diol is found out in the genus Streptomyces and the genus Kitasatospora in which the activity is conventionally unknown. Thus, the method for producing the adamantane polyol using the microorganism is completed. That is, the method for producing the adamantane polyol comprising a step of reacting the adamantanol and/or the adamantane diol with the microorganism belonging to the genus Streptomyces or a treated substance thereof or the microorganism belonging to the genus Kitasatospora or a treated substance thereof is provided. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a polynucleotide encoding a new 2,6-dihydroxybenzoic acid decarboxylase gene useful for the production of a polyhydric alcohol aromatic carboxylic acid, a method for producing the enzyme, and a method for producing a polyhydric alcohol aromatic compound using the enzyme. SOLUTION: Pandoraea sp. 12B-2 produces a 2,6-dihydroxybenzoic acid decarboxylase. The gene encoding the 2,6-dihydroxybenzoic acid decarboxylase is an absolutely new DNA. The 2,6-dihydroxybenzoic acid decarboxylase is a high-activity enzyme acting to various polyhydric alcohols to form polyhydric alcohol aromatic carboxylic acids. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To obtain a new microorganism as a kind of microorganisms containing 16S rRNA gene having specific base sequences, having the ability to convert a nitrile to the corresponding amide in high production efficiency, and useful in e.g. producing an amide compound for producing feed additives, or the like. SOLUTION: The new kind of microorganism is e.g. Rhodococcus sp.Cr4 strain (FERM BP-6596), containing 16S rRNA gene having respective base sequences of formula I and formula II and having the ability to convert a nitrile to the corresponding amide, thus being useful in producing the corresponding amide compound from a nitrile such as a cyanohydrin of formula III (R1 is a hydrocarbon group or heterocyclic group optionally having substituent(s)). The Rhodococcus sp.Cr4 strain as the new kind of microorganisms has been afforded by isolation using an accumulation method by culture in a selective medium from the soil collected from a certain field soil in Okayama City, Okayama Prefecture, Japan.
Abstract:
PROBLEM TO BE SOLVED: To provide a nitrilase-producing microorganism having high resistance to organic solvents, and to provide a method for efficiently producing a carboxylic acid from a nitrile, by utilizing nitrilase activity of the microorganism. SOLUTION: In this method for producing the carboxylic acid, the microorganism, which belongs to the genus Arthrobacter, in which 10% or more of the nitrilase activity is left in case of being treated at 20°C for 60 min in the presence of a 40%-organic solvent, and which concretely comprises a substance having the nitrilase activity comprising an Arthrobacter SP F-73 strain and/or its treated product, is brought into contact with the nitrile in a reaction liquid which is formed by adding an organic solvent to an aqueous reaction liquid, and then the carboxylic acid which is formed by hydrolyzing the nitrile is recovered. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a method for producing adamantanol by site-selective hydroxylation reaction of adamantane using a microorganism. SOLUTION: The method for producing adamantanol from adamantane comprises a process for treating adamantane with a cell body of a microorganism belonging to the genus Streptomyces or Dothiora or its treated material. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a method for readily and inexpensively producing sorbic alcohol in an industrial scale. SOLUTION: It is found that microorganisms belonging to the genuses of Verticillium, Beauver, Mucor, Rhizopus and Hypocrea have excellent abilities for producing the sorbic alcohol. The sorbic alcohol is readily and efficiently produced by using the biomass of the microorganisms or a treated product thereof. COPYRIGHT: (C)2005,JPO&NCIPI