Class 435/930 - Hansenula

Subclass of Class 435 - Chemistry: molecular biology and microbiology
No. of patents: 37
Last issue date: 08/17/2004

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Number	Title	Issue Date
6777224	Method for producing optically active mandelic acid derivatives The present invention provides a method for enzymatically producing optically active mandelic acid derivatives. An optically active mandelic acid derivative (shown as Formula II) is produced by reacting a culture or cell body of a microorganism, or processed product...	08/17/2004
6458570	Process for the production of xylitol The present invention relates to a process for the production of xylitol. Specifically the process comprises two reaction steps. The first step is the fermentative conversion of a hexose to a pentitol. The second step is the catalytic chemical isomerisati...	10/01/2002
6268190	Method of producing arabitol by continuous fermentation A method of producing arabitol by continuous fermentation of at least one sugar by micro-organisms producing arabitol, characterised in that arabitol is produced in a first fermentation area including at least one fermenter in such a manner that some of t...	07/31/2001
5968788	Method for producing folic acid Disclosed is a method for producing folic acid, comprising incubating yeast having the ability to produce folic acid of 0.3 mg or more or incubating bacteria having the ability to produce folic acid of 1 mg or more per liter of the culture, thereby accumu...	10/19/1999
5900368	Process for bioreduction of bisaryl ketone to bisaryl alcohol The present invention is directed to an improved process for making PDE IV inhibitors. In specific, this application describes a process for making and purifying a chiral bisaryl alcohol, an intermediate compound necessary for the preparation of PDE IV in...	05/04/1999
5679557	Process of asymmetrically reducing 1-phenyl-2-oxo-propane derivatives with microorganisms An (S)-1-phenyl-2-substituted propane derivative shown by the following formula (I) ##STR1## wherein R1 and R2 represent a lower alkyl group, etc., or R1 and R2 may form together an alkylene group, etc.; R	10/21/1997
5627056	Method of synthesizing lipids and cosmetic composition comprising them An efficient method of producing phytosphingosine-containing ceramide one comprising: (a) obtaining a phytosphingosine base from tetraacetylphytosphingosine (TAPS) by a deacetylation reaction wherein the TAPS is produced by fermentation of cells of the F-...	05/06/1997
5360724	Process for the preparation of chiral 1-aryl-2-aminopropanes One chiral form of a 1-aryl-2-aminopropane is produced in preference to its enantiomer by allowing a 1-arylpropan-2-one to react with a 1-amino-1-phenylethane of predominantly one chiral form and reducing the resultant 1-(1-arylprop-2-ylideneimino)-1-phen...	11/01/1994
5294539	Nitrate reductase from yeasts, the preparation and use thereof The invention relates to NAD(P)H-dependent nitrate reductase from yeasts, to a process for the preparation thereof and to the use thereof in a reagent for determining nitrate. The nitrate reductase is characterized by a molecular weight of about 350 000 D...	03/15/1994
5288620	Process for the production of optically active 2-hydroxy-4-phenyl-3-butenoic acid Optically active 2-hydroxy-4-phenyl-3-butenoic acid can be obtained by treating 2-oxo-4-phenyl-3-butenoic acid with an optionally treated microorganism capable of asymmetrically reducing the 2-oxo-4-phenyl-3-butenoic acid into (R)-2-hydroxy-4-phenyl-3-but...	02/22/1994
5256552	Process for the production of optically active 2-hydroxy-4-phenylbutyric acid 2-Oxo-4-phenylbutyric acid is treated with a microorganism, which has been optionally treated, capable of asymmetrically reducing 2-oxo-4-phenylbutyric acid into either (R)-2-hydroxy-4-phenylbutyric acid or (S)-2-hydroxy-4-phenylbutyric acid, and the ...	10/26/1993
5234827	Enzymatic process for manufacturing formaldehyde and hydrogen peroxide A process is disclosed for enzymatically converting lower alkyl alcohols to corresponding aldehydes and hydrogen peroxide in the presence of oxygen under process conditions which increase the catalytic capacity of alcohol oxidase enzymes. Such process con...	08/10/1993
5194380	Process for the production of optically active 2-hydroxy-4-phenyl-3-butenoic acid Optically active 2-hydroxy-4-phenyl-3-butenoic acid can be obtained by treating 2-oxo-4-phenyl-3-butenoic acid with an optionally treated microorganism capable of asymmetrically reducing the 2-oxo-4-phenyl-3-butenoic acid into (R)-2-hydroxy-4-phenyl-3-but...	03/16/1993
5082936	Glucan composition and process for preparation thereof Three dimensional glucan matrix compositions are prepared by separating growing yeast from its growth medium, subjecting the yeast with cell walls intact to an alkali material, thereby extracting whole glucan particles having an intact cell wall structure...	01/21/1992
5068187	Process for producing D-଱-amino acids The 5-substituted hydantoins represented below can be transformed into D-଱-amino acids by the use of the cultured broth, cells or treated cells of the genus Hansenula: 5-substituted hydantoins: ##STR1## wherein R represents an alkyl, substitute...	11/26/1991
5026642	Process for the enzymatic production of ketones In a process for the reduction of ketones, the keto compounds are enantioselectively reduced to give secondary alcohols by means of microorganisms. Keto compounds of the formula R3 NH--CHR1 --CO--CH2 --COOR2 in which...	06/25/1991
4960695	Fermentation process to produce 2-keto-L-gluonic acid A process of producing 2-keto-L-gulonic acid by fermentative conversion of L-sorbose utilizing a fermentation system composed of component produced from a microorganism having the identifying characteristics of strain DSM No. 4025 and a yeast component....	10/02/1990
4920055	Conversion of alcohols to aldehydes and hydrogen peroxide by substrate and product tolerant methanol oxidases Disclosed is a process for converting alcohols to aldehydes and hydrogen peroxide through the use of a methanol oxidase enzyme. The process involves introducing a lower alkyl or lower alkylene alcohol, such as methanol, ethanol, or allyl alcohol, as an aq...	04/24/1990
4874695	Rapid indentification of yeast and other fungal microorganisms by enzyme detection Rapid identification of different species of microorganism selected from fungi and yeast like algae is accomplished by culturing the microorganism for several hours under normal conditions on a non-inhibitory mycological medium which stimulates the microo...	10/17/1989
4871669	Production of natural flavor aldehydes from natural source primary alcohols C₂ -C₇ Methylotrophic yeasts of the genera Pichia, Torulopsis, Candida and Hansenula when grown on methanol, make use of an enzyme, alcohol oxidase, to catalyse the initial oxidation of methanol to formaldehyde. Non-growing whole cells of such methylotrophic yea...	10/03/1989
4490468	Production of ethanol by yeast using xylulose Ethanol is produced by the fermentation of xylulose using yeast under fermentative conditions....	12/25/1984
4414329	Biochemical conversions by yeast fermentation at high cell densities A method of high cellular density yeast fermentation at high mineral salts feed to and maintained in the ferment. Single cell protein (SCP) is produced in an aerobic fermentation process at high yields under high cell density conditions employing media of high...	11/08/1983
4326030	Process for the production of pyruvic acid and citric acid Process for the production of citric acid, characterized in that E. Coli KG 93, F- is cultivated in a first step for 15-24 hours at a temperature of 20°-37° C. and a pH of 5.0-7.5 on a substrate consisting of whey permeate to which has been a...	04/20/1982
4261420	Enriched oil recovery using carbon dioxide A single cell protein plant is operated to produce high density cell growth and a substantially pure stream of generally high pressure carbon dioxide for further use, for example, in enhanced oil recovery operations. The plant employs an air separator pro...	04/14/1981
4250261	Process for the microbial production of alcoholoxidase A method of producing alcohol oxidase wherein Hansenula polymorpha yeast is cultivated in a nutrient broth containing inorganic nutrient salts of which either the phosphate, nitrate or potassium is present in a cell-growth-limiting concentration at a temp...	02/10/1981
4247635	Microbiological reduction of 15-ketoprostaglandin intermediates A process for the preparation of a 15 ଱-hydroxyprostaglandin intermediate of the formula ##STR1## wherein R1 is phenoxymethyl, phenoxymethyl substituted on the phenyl moiety by halogen or trifluoromethyl, or alkyl of 1-5 carbon atoms...	01/27/1981
4242458	Biosynthesis of protein by fermentation of methanol obtained from the gasification of coal or residual oil This invention relates to a method of synthesizing single cell protein from residual oils and/or coal by a mutually advantageous combination of a synthesis gas generation process or a coal gasification process in the production of methanol and ammonia, an...	12/30/1980
4168201	Method of increasing yeast yield A method of increasing yield of yeast cells on a carbon source of crude methanol or crude ethanol is given....	09/18/1979
4019962	Apparatus for aerobic fermentation Improved apparatus for the continuous aseptic growth of single-cell protein materials, employing an aqueous ethanolic substrate fortified with nutrient elements, preferably under oxygen limited conditions. The fermentation is conducted under conditions wh...	04/26/1977
4007088	Process of manufacturing native microbial protein with a low content of nucleic acids The invention relates to a process of manufacturing native microbial protein with a low content of nucleic acids, the product being useful as food or feed. The products obtained by the process of the invention may be widely used in the food industry, espe...	02/08/1977
3997397	Production of proteic materials from yeast cells Proteic material is produced from yeast cells without prior treatment of the cells by subjecting them to lysis action by means of an enzyme complex obtained from strains of the genus Cytophaga....	12/14/1976
3982998	Methanol foam fermentation to single cell protein by microorganisms A process for the production of microbial cells by fermenting a carbonaceous material in a foam fermenter containing an oxygen-enriched nutrient medium. The process uses a source of carbon which is assimilable by the microorganism for the production of th...	09/28/1976
3966553	Process for producing citric acid by fermentation Process for manufacturing citric acid by aerobic culture of yeast strains in a medium containing at least one n-paraffin, comprising adding to the culture medium, after the phase of exponential growth thereof, a nitrogenous heterocyclic organic compound s...	06/29/1976
3962034	Method for producing S-adenosylmethionine or methylthioadenosine by yeast S-adenosylmethionine and methylthioadenosine are produced in the culture medium of yeast grown in a media containing L-methionine....	06/08/1976
3957585	Method for conducting fermentation An apparatus for conducting a fermentation process for the production of single cell protein and the like. The apparatus includes a vessel with a reaction zone and has liquid atomizing means opening thereinto for the injection of atomized liquid into the ...	05/18/1976
3954561	Process for producing microorganisms from ethylene The invention is an improvement in the prior art processes for producing a microorganism using ethylene as a carbon source. The improvement comprises: 1. hydrating ethylene by contacting ethylene and water, both being in the vapor phase, with a supported ...	05/04/1976
3933590	Method of continuously culturing yeast Yeast is continuously cultured in a vapor condensate by adding a neutralizing agent and nutritive agents to the vapor condensate produced from the evaporation of spent sulfite liquor; inoculating said vapor condensate with Candida, Pichia or Hansenula yea...	01/20/1976

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Class 435/930 - Hansenula