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Class 435/800 - ELIMINATION OR REDUCTION OF CONTAMINATION BY UNDERSIRED FERMENTS (E.G., ASEPTIC CULTIVATION)


Subclass of Class 435 - Chemistry: molecular biology and microbiology
Definition: Subject matter in which a culture is subjected to physical
No. of patents: 87
Last issue date: 03/20/2007


1      
NumberTitleIssue Date
7192765Method for producing a nitrification carrier and for removing nitrogen
Provided are a nitrite-type nitrification carrier and a method for producing the same and a method and an apparatus for removing nitrogen using the same, in which the quantity of organic matter to be added can be substantially reduced to reduce running cost. A metho...
03/20/2007
7005298Micropropagation and production of phytopharmaceutical plants
The development of an in vitro regeneration system that utilizes a plant growth regulator having cytokinin activity for the induction of de novo shoots or somatic embryos on explants of phytopharmaceutical plants is provided. Transfer of the regenerated shoots or so...
02/28/2006
6825027Method of production of purified hepatitis a virus particles and vaccine preparation
The present invention provides methods of purification of Hepatitis A Virus from the supernatant of an infected cell culture and production of a preparation of purified HAV antigen. The present invention is also directed to an HAV vaccine composition comprising a pr...
11/30/2004
6818409Isolation and purification of Clostridium botulinum toxins
A method for separating and purifying HA-positive progenitor toxin(s) (LL and/or L toxins) and HA-negative progenitor toxin (M toxin) from a Clostridium botulinum strain is provided. The method comprises applying a liquid containing both the HA-positive proge...
11/16/2004
6379906Compositions and methods for detecting adult Taenia solium
Compositions and methods for the detection of adult Taenia solium and the diagnosis and treatment of T. solium infection are described. The compositions contain one or more adult T. solium polypeptides. The polypeptides are useful as diagnostic agents for...
04/30/2002
6365732Process for obtaining stereoisomers from biomass
The present invention includes a process for extracting a stereoisomer fro biomass. The method comprises providing biomass and subjecting the biomass to substantially instantaneous pressurization and depressurization to separate cellulose, hemicellulose, ...
04/02/2002
6355435Methods for detecting and enumerating Campylobacter jejuni in environmental samples and for identifying antibiotic-resistant strains
The present invention provides a process for detecting and enumerating Campylobacter jejuni in an environmental sample. The present invention further provides a process which can distinguish antibiotic resistant strains of Campylobacter jejuni from wild-t...
03/12/2002
6346376Optical sensor unit and procedure for the ultrasensitive detection of chemical or biochemical analytes
This document describes an optical sensor unit and a procedure for the specific detection and identification of biomolecules at high sensitivity in real fluids and tissue homogenates. High detection limits are reached by the combination of i) label-free i...
02/12/2002
6287791Multidimensional cell differential analysis
This invention relates to an improved method for the multi-parameter analysis of cells from peripheral blood or bone marrow. The method uses a nucleic acid dye, at least two fluorescently labelled monoclonal antibodies and at least two light scatter param...
09/11/2001
6287781Method for detection of target nucleic acids using PCR
A method for detecting the presence of a target nucleic acid sequence in a sample is provided. The method comprises subjecting the sample to an amplification reaction to obtain an amplification product where the target nucleic acid sequence is present usi...
09/11/2001
6245296Flow immunosensor apparatus
Target moiety is detected by (a) providing an antibody specific to the target, (b) saturating the binding sites of the antibody with a labelled form of the target, (c) flowing a liquid containing the target past the saturated antibody, thereby (d) allowin...
06/12/2001
6162603Hybridization of polynucleotides conjugated with chromophores and fluorophores to generate donor-to-donor energy transfer system
The present invention contemplates chromophore-containing polynucleotides having at least two donor chromophores operatively linked to the polynucleotide by linker arms, such that the chromophores are positioned by linkage along the length of the polynucl...
12/19/2000
6103508Method for removing fumarase activity, microorganisms obtainable by the method, and production of optically active aminopolycarboxylic acids using the microorganisms
This invention relates to a method for removing fumarase activity from a microorganism or processed product thereof having ethylenediamine-N,N'-disuccinic acid ethylenediamine lyase activity, which includes treating the microorganism or processed product ...
08/15/2000
6043061Process for producing amide compound
A process for producing an amide compound is described, wherein from a nitrile compound, the corresponding amide compound is produced by the action of nitrile hydratase, characterized in that the hydrocyanic acid concentration in a composition containing ...
03/28/2000
6027724Non-toxigenic strain of Aspergillus oryzae and Aspergillus sojae for biocontrol of toxigenic fungi
Non-toxigenic strains of Aspergillus such as from the species Aspirgillus oryzae and Aspergillus sojae are useful fungal biocontrol agents for preventing toxin contamination in agricultural commodities, especially those for human consumption such as peanu...
02/22/2000
6004801Method of purifying K-252a
The present invention provides a purification process of K-252a, which comprises: treating microorganism cells containing K-252a represented by formula (I): ##STR1## with an alkaline solution to convert K-252a into K-252b represented by formula (II)...
12/21/1999
5859324Hypersensitive response induced resistance in plants
The present invention relates to a method of imparting pathogen resistance to plants. This involves applying a hypersensitive response elicitor polypeptide or protein in a non-infectious form to a plant under conditions where the polypeptide or protein co...
01/12/1999
5858793Sterile or specific pathogen free environment products
Methods of maintaining or providing sterile or specific pathogen free environments are disclosed. The methods involve the use of semi-permeable membrane materials between the sterile or pathogen free environment and surrounding potentially hostile environ...
01/12/1999
5849489Hybridization of polynucleotides conjugated with chromophores and fluorophores to generate donor-to-donor energy transfer system
The present invention contemplates chromophore-containing polynucleotides having at least two donor chromophores operatively linked to the polynucleotide by linker arms, such that the chromophores are positioned by linkage along the length of the polynucl...
12/15/1998
5814498Process for the recovery of organic acids and ammonia from their salts
A process recovers organic acid and ammonia from their salts preferably obtained from microbial fermentation of a saccharide in a nutrient. The fermented materials is passed through a nanofiltration or a chelating resin ion-exchange bed or a combination o...
09/29/1998
5776889Hypersensitive response induced resistance in plants
The present invention relates to a method of imparting pathogen resistance to plants. This involves applying a hypersensitive response elicitor polypeptide or protein in a non-infectious form to a plant under conditions where the polypeptide or protein co...
07/07/1998
5756304Screening of microorganisms for bioremediation
The present invention is directed to the application of robotics to screen and optimize microorganisms for their bioremediation capabilities. In particular, the present invention provides methods to screen for the ability of microorganisms to metabolize p...
05/26/1998
5691174Production of plastics materials from microorganisms
A plastic is recovered from microorganisms containing it by chemically solubilising non plastic material with an oxidising agent in the presence of a chelating agent....
11/25/1997
5681728Method and apparatus for the recovery and purification of organic acids
The present invention relates to methods and apparatus for reducing the fouling of ion-selective membranes used in the electrodialytic purification of organic acids. More particularly, the present invention relates to the use of nanofiltration and chelati...
10/28/1997
5665762Decontaminating clinical samples
The present invention contemplates methods of decontaminating human fluids prior to processing in the clinical laboratory. The techniques handle large volumes of human serum without impairing the testing results. Novel compounds for photodecontaminating b...
09/09/1997
5532148Process for producing of citric acid and monovalent citrate salts
A short process is disclosed for the production of citric acid in high yield and purity. Conidia of Aspergillus niger are cultured in an aqueous solution of decationized glucose syrup in a fermentation medium whose manganese(II) concentration is 2.5 to le...
07/02/1996
5525505Plant propagation system and method
A plant propagation system and method are provided for promoting the growth of plant tissue into small plantlets. The plant propagation system includes sealed, semipermeable membrane vessels for completely enclosing plant material therein. The sealed vess...
06/11/1996
5445949Large scale separation and purification of fermentation product
A method of separating a hydrophobic fermentation product selected from the group consisting of lipase, esterase, endoxylanase and an antibiotic from a mixture comprising said product and contaminants which method comprises adding to the mixture sequentia...
08/29/1995
5395530Treatment of fresh waters to destroy filamentous bacteria
The present invention provides a method for inhibiting the growth of filamentous microorganisms. The method includes the steps of adding effective amounts of a biocide and an enzyme. The enzyme of the present invention enhances the leakiness of the protec...
03/07/1995
5371011Mold control in forage
Anti-fungal and anti-microbial bacterial strains of Serratia are used in the preparation and preservation of animal feedstuffs made from forage. Bacterial strains of Serratia rubidaea are particularly useful for such purposes, and permit hay to be baled a...
12/06/1994
5324432Treatment of process waters to destroy filamentous bacteria
The present invention provides a method for inhibiting the growth of filamentous microorganisms. The method includes the steps of adding effective amounts of a biocide and an enzyme. The enzyme of the present invention enhances the leakiness of the protec...
06/28/1994
5268283Method for the production of detergent builder formulations utilizing spray granulated citric acid and salts thereof
Disclosed are compositions of particulate citric acid or an alkali metal or alkaline earth metal salt thereof prepared by an improved method and an improved method of preparing a detergent builder composition. The method of preparing particulate citric ac...
12/07/1993
5232830Intrinsic fluorescent quenching methods
Novel methods and compositions for detecting a member of a ligand pair on solid supports having intrinsic fluorescence are disclosed. A target member of a ligand pair is contacted with a capture member of a ligand pair, wherein the capture member is immob...
08/03/1993
5220029Synthetic proteolytic substrate
A reagent for proteolytic enzyme assays has the general formula ##STR1## where RCO-- is an enzyme reactive acyl, such as an amino acid, peptide or substituted amino acid or peptide. The reagent may by hydrolyzed by proteolytic enzymes and developed t...
06/15/1993
5206172Counterflow prevention system for a fermentation tank
A possible counterflow of a fermenting solution (8) from a fermentation tank (1) into a heating medium supply pipe (2), which counterflow may be caused by a pressure difference arising between the inner space (7) of the tank (1) and the pipe (2) after the...
04/27/1993
5190754Ampelomyces quisqualis AQ10, CNCM I-807, for biological control of powdery mildew
A novel fungal strain of the species Ampelomyces quisqualis has been isolated and pure cultures thereof prepared. This novel strain is termed AQ10 and has CNCM Accession Number I-807, and was found to be a hyperparasite of the causative fungi of powdery m...
03/02/1993
5173297Bacteriocin from Lactococcus lactis subspecies lactis
A bacteriocin or polypeptide (LL-2 SEQ ID NO:2) derived from Lactococcus lactis subspecies lactis NRRL-B-18809 is described. Sequenced DNA and polypeptide precursor encoded thereby (SEQ ID NO: 1) are described. Methods of use and production of the polypep...
12/22/1992
5149643Method for the production of granular citric acid and salts thereof
Disclosed is an improved method for preparing a particulate citric acid or an alkali metal or alkaline earth metal salt thereof. The method involves spray granulating citric acid or a salt thereof from its partially purified fermentation broth to form gra...
09/22/1992
5112752Biocatalytic oxidation using soybean and other legume peroxidases
Biocatalytic oxidative processes wherein oxidizable substrates are reacted with peroxides in the presence of a peroxidase such as soybean peroxidase or another legume peroxidase; an oxidative coupling reaction for producing phenolic resins; a method for t...
05/12/1992
5108908Process for the treatment of proteinic solutions containing pigments such as heminic groups or chlorophylls in view of their decolorization and products thus obtained
A process for pigments such as the treatment of proteinic solutions containing heminic groups or chlorophylls in view of their decolorization, and products thus obtained. The proteinic solution is subjected in a first step, to a slight enzymatic hydrolysi...
04/28/1992
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