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4038144 |
Method of increasing fermentation yields
A method of increasing the yield of a fermentation process comprises adding a water-soluble carotenoid to the nutrient medium.
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4035238 |
Staphylococcus aureus broth
A broth medium for the detection of Staphylococcus aureus in urine. The medium employs mannitol to promote growth of S. aureus, potassium tellurite to inhibit growth of gram-negative organisms,...
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4018649 |
Process for control of cell division
A method of controlling mitosis of biological cells by inducing a change in the intracellular ionic hierarchy accompanying the cellular electrical transmembrane potential difference (E m ) of the...
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4017362 |
Microbiological process for preparing L-tartaric acid in presence of surfactants
A process for preparing L-tartaric acid, which comprises contacting a microorganism of the genus Nocardia having the ability to produce an enzyme which hydrolyzes the epoxy ring of...
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4013509 |
Production of L(+)-tartaric acid
Calcium cis-epoxysuccinate is converted into calcium L(+)-tartarate by a microorganism in a high concentration and is a better yield. This process is accelerated in the presence of a nonionic type...
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4011140 |
Process for producing antitumor compound
A process for producing 5, 10, 11, 11a-tetrahydro-9,11-dihydroxy-8-methyl-5-oxo-1H-pyrrolo-[2,1
-C][1,4]benzod iazepin-2-acrylamide, which comprises aerobicatlly culturing Streptomyces...
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3989595 |
Production of single cell protein
A process for the production of single cell protein which comprises growing on a suitable medium bacteria by continuous culture, said bacteria being capable of utilizing methanol, or methanol and...
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3983003 |
Mycobacteria culture medium and method for in vitro cultivation of leprosy mycobacteria employing same
A hyaluronic acid-enriched mycobacteria culture medium whose base is either Dubos oleic acid-albumin liquid medium or a physiological mixture of fresh yeast extract in a phosphate buffer of pH 5.5...
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3977942 |
Fermentation of cephamycin C
Increased yields of the known and useful antibiotic cephamycin C [7-(D-5-amino-5-carboxyvaleramido)-3-(carbamoyloxymethyl)-7-
methoxy-3-ceph em-4-carboxylic acid] are obtained by the addition of...
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3975236 |
Fermentation processes for making penicillin and cellulase
The presence of small dissolved quantities of carboxypolymethylenes in culture media producing cellulase or penicillin enhances the fermentation parameters.
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3974031 |
Process for producing L-cysteine or its derivatives
L-cysteine and derivatives thereof of the formula (I): ##EQU1## wherein R is selected from the group consisting of hydrogen, C 1 -C 15 alkyl, C 2 -C 15 alkenyl, C 6 -C 15 aryl, C 7 -C 15 ...
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3972775 |
Conversion of cellulosic materials to sugar
A process for the production of sugar, mainly glucose, by the enzymatic degradation of cellulosic materials, particularly cellulosic wastes, which comprises hydrolyzing the cellulosic material in...
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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...
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3964971 |
Method for increasing the vitamin B.sub.12 production in fermentation processes carried out with methanobacteria
The invention relates to a method for increasing the vitamin B 12 production of fermentation processes performed in a known way with a mixed population of mesophilic methane-producing bacteria...
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3953290 |
Polypeptides as vitro active cell growth enhancing factors and methods of use
Disclosed are in vitro active cell growth factors that stimulate deoxyribonucleic acid synthesis in the cells, are polypeptide in chemical structure, having a molecular weight range of from 4,000...
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3951743 |
Production of zeaxanthin
A process for the preparation of zeaxanthin which comprises culturing a microorganism of the genus Flavobacter producing this pigment in a nutrient medium containing at least one carbohydrate as...
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3947323 |
Fermentation processes
Fermentation parameters are improved by the addition of certain polymers to the fermentation broth. Small quantities of carboxypolymethylene in Aspergillus niger cultures are particularly effective.
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3943038 |
Method for producing amino acids by culturing hydrogen-oxidizing bacteria
Amino acids are produced by culturing hydrogen-oxidizing bacteria of the genus Arthrobacter, Brevibacterium and Mycobacterium in an aqueous culture medium in the presence of oxygen, hydrogen and...
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3941656 |
Manufacture of citric acid by submerged fermentation
The invention concerns a process for producing citric acid during which ferri- or ferrocyanide ions like potassium ferrocyanide are added at a particular time and in a preselected amount.
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3940315 |
Production of citric acid by submerged fermentation
The invention concerns the production of citric acid-producing mycelial pellets of a citric acid-producing microorganism by a selective treatment with ferrocyanide or ferricyanide ions. Known...
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3936352 |
Process for the production of citric acid
The invention relates to a process for the production of citric acid which omprises subjecting a carbohydrate-containing material to a submerged fermentation with a citric acid producing strain of...
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3933591 |
Process for preparing intracellular substances of microbial origin
Intracellular substances of microbial origin are prepared by culturing a microorganism in a suitable nutrient medium therefor in the presence of at least one antibiotic in sufficient amount to...
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3929571 |
Process for preparing L-lysine
Better yields of L-lysine can be obtained by culturing an L-lysine producing microorganism in a nutrient medium supplememted with an antibiotic, a surface active agent and/or an anti-oxidant.
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3929573 |
Method of preparing L-tryptophan
The tryptophanase of Proteus, Ervinia, Escherichia, Pseudomonas, or Aerobacter which can cause reaction of indole and 5-hydroxyindole with serine to L-tryptophan and 5-hydroxy-L-trypotphan can...
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3929575 |
Method of producing glutamic acid by fermentation
An improved method of producing glutamic acid by fermentation whereby rapid growth of the glutamic acid-producing organism is promoted at the start of the fermentation by the steps of using...
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3926729 |
Method for producing deacetylcephalosporin C
Deacetylcephalosporin C is produced by cultivating a microorganism which belongs to genus Cephalosporium and is capable of producing deacetylcephalosporin C and accumulating it in the culture...
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3922202 |
Fermentation process
Increased yields of a mixture of the known and useful antibiotics cephamycin A and B are obtained by the addition of L-lysine or L- or DL-α-aminoadipic acid to fermentation media composed of...
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3917510 |
Lysis of yeast cell walls
Lysis of yeast cell walls in an aqueous medium by an enzyme which is capable of lysing the yeast cell walls is accelerated by effecting the lysis in the presence of a water-soluble sulfite or by...
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3915803 |
Process for producing cycloheximide
It has been found that cycloheximide production by a culture of Streptomyces griseus is maintained and total yields of the antibiotic are increased when a glucose feed is begun at about 48 hrs. and...
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3912594 |
Method of producing dextranase
A method for the production of dextranase which comprises culturing a dextranase-biosynthesizing microorganism belonging to the genus Flavobacterium in a culture medium and recovering from said...
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3910819 |
Treatment of surfaces to stimulate biological cell adhesion and growth
Contact of negatively charged biological cells is promoted by dispersion within the cell medium of a minor amount of a polyquaternary polymeric amine known as an ionene. Adhesion of the cells to...
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3909359 |
Method for the preparation of cholesterol oxidase
A novel method for the production of cholesterol oxidase comprising the steps of (a) growing the bacterium Nocardia cholesterolicum species NRRL 5767 or NRRL 5768 in a medium in which cholesterol...
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3904477 |
Process for producing 3', 5'-cyclic adenylic acid with microorganism
3',5'-Cyclic adenylic acid is produced in a high yield at a lower price by culturing a strain of microorganism belonging to the genus Microbacterium, such as, for example, Microbacterium No. MT-3...
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3902968 |
Fermentation process
Increased yields of the known and useful antibiotic cephamycin C [7-(D-5-amino-5-carboxyvaleramido)-3-(carbamoyloxymethyl)-7-
methoxy-3-ceph em-4-carboxylic acid] are obtained by the addition of...
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3897304 |
Method for cultivation of microorganisms
A method for the aerobic cultivation of a microorganism in a culture medium containing one or more normal paraffin as the sole carbon source in the presence of at least one polyoxypropylene glycol...
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3891504 |
Process for the manufacture of zeaxanthin
A process for obtaining zeaxanthin by fermentation utilizing one of two bacterial species which belong to the genus Flavobacter and which are deposited under ATCC 21,588 and ATCC 21,081.
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3886039 |
Method for producing L-glutamine
Mutant strains of genera Brevibacterium Corynebacterium and Microbacterium which resist the growth inhibiting effect of at least one sulfa drug produce L-glutamine by fermentation of otherwise...
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3886041 |
Production of citric acid by submerged fermentation
A method of increasing the yield of citric acid produced by the fermentation of carbohydrates by Aspergillus. The method comprises adding sodium hydroxide to the fermentation medium in sufficient...
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3886044 |
Process of making cephamycin C by fermentation
Increased yields of the known and useful antibiotic cephamycin C [7-(D-5-amino-5-carboxyvaleramido)-3-(carbamoyloxymethyl)-7-
methoxy-3-ceph em-4-carboxylic acid] are obtained by the addition of...
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3883397 |
Material for biological degradation of petroleum
Material for promoting growth of petroleum-degrading bacteria to aid in eradication of oil slicks of water which consists of a mixture of bacterial available nutrients, in particulate form, each...
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3878044 |
Method of producing L-arginine by fermentation
An artificially induced mutant strain of Brevibacterium flavum which requires guanine for its growth and is capable of growth in a medium containing 10 mg/ml 2-thiazolalanine or other arginine...
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3873424 |
PRODUCTION OF CITRIC ACID, ISOCITRIC ACID AND MICROBIAL CELLS BY FERMENTATION
Processes for producing citric acid together with microbial cells as well as producing increased yields of citric acid and/or isocitric acid by fermentation are described. Hydrocarbon-assimilating...
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3870600 |
Selective and enrichment medium for the isolation identification and propagation of yeasts and fungi
A selective enrichment nutrient medium for the isolation, identification and propagation of yeasts and fungi containing a fruit pulp, or quinone derivative/s, source of nitrogen, minerals and...
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3856627 |
CULTURE MEDIUM FOR BACTERIA
A culture medium containing fish protein hydrolysate which is prepared by hydrolizing fish protein with protease. This culture medium can be used as a substitute for conventional culture media...
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3847750 |
AEROBIC FERMENTATION APPARATUS
Yeasts are grown aseptically by an improved aerobic fermentation process, employing an aqueous ethanolic substrate fortified with nutrient elements, preferably under oxygen-limited conditions....
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3816258 |
PROCESS FOR PRODUCING L-HISTIDINE BY FERMENTATION
A process for producing L-histidine by fermentation using a microorganism capable of producing L-histidine, characterized in that the microorganism is cultured in a medium containing a...
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3816261 |
CULTURE MEDIUM FOR LERTOSPIRA ORGANISMS
A chemically defined, protein-free culture medium embodying an anion-exchange resin and a water-soluble lipid source provides means for producing high yields of Leptospira organisms.
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3803000 |
INHIBITION OF ANTI-BACTERIAL ACTION OF BLOOD
The present invention relates to a novel use of sulfates of the amylopectin fraction of starch, in which these compounds are added to blood samples in order to act both as anticoagulants and also...
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3801457 |
METHOD FOR PRODUCING L-TRYPTOPHAN
An improved method is provided for producing L-tryptophan by cultivating a microorganism of the genus Bacillus which requires anthranilic acid for its growth and is also resistant to the inhibiting...
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3773620 |
PROCESS FOR PRODUCING CITRIC ACID ISOCITRIC ACID AND MICROBIAL CELLS BY FERMENTATION
Processes for producing citric acid together with microbial cells as well as producing increased yields of citric acid and/or isocitric acid by fermentation are described. Hydrocarbon-assimilating...
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