摘要:
A process for aerobic cultivation of a microorganism which assimilates n-paraffins comprises introducing an oxygencontaining-gas into an aqueous medium containing the microorganism dispersed therein and the n-paraffins with agitation at a constant speed, wherein an amount of oxygen in the gas is controlled in accordance with the amount of oxygen necessary for each step or phase of cultivation, which amount is determined by a known cultivation property with respect to the above microorganism.
摘要:
Glucose isomerase bound to an inert carrier is maintained in suspension while being contacted with a glucose containing solution under specific conditions whereby a portion of the glucose is converted to fructose.
摘要:
L-lysine, L-aspartic acid, L-alanine, L-valine, L-leucine and Larginine are produced by culturing Protaminobacter thiaminophagus ATCC 21927 in a nutrient medium containing methanol as the carbon source under aerobic conditions.
摘要:
Fermentation process for the simultaneous production of protein cells and biopolymers in a single fermentation zone is provided by cultivating selected microorganisms on a suitable substrate in an aqueous aerobic fermentation broth.
摘要:
A continuous process for converting methane into proteinaceous materials wherein a methane utilising micro-organism, preferably Methylococcus casulatus is cultivated continuously under steady state conditions at a production rate of at least 0.81 (dry weight) of micro-organism per litre hour in an aqueous broth containing nutrient salts and ammonium ions, in the presence of methane and a gas containing free oxygen, adding an aqueous nutrient medium to the broth and maintaining the broth pH in the range 4.5 to 8.0 and the ammonium ion concentration in the range 2 to 100 milligrams per litre.
摘要:
PROTEINACEOUS SUBSTANCES SUITABLE FOR USE AS FODDER AND FOODSTUFFS ARE MANUFACUTRED BY SUBMERGED AEROBIC CULTURE OF A SPECIES OF MYCELIUM-GROWING MICRO-ORGANISM OF THE GENUS BYSSOCHLAMYLS, GLOCLADIUM, PAECILOMYCES, SPICARIS OR TRICHLODERMA.
摘要:
A FERMENTAION TOWER SUITABLE FOR CARRYING OUT CONTINUOUS FERMENTATION PROCESSES THEREIN WHEN POSITIONED WITH ITS LONGITUDINAL AXIS SUBSTANTIALLY VERTICAL WHICH COMPRISES AN ELONGATE TOWER PROVIDED WITH INLET MEANS FOR INTRODUCING FERMENTABLE LIQUID NEAR ONE END OF THE TOWER AND OUTLET MEANS FOR THE WITHDRAWAL OF PRODUCTS OF FERMENTATION NEAR THE OTHER END OF THE TOWER, AND DIVIDED INTO A PLURALITY OF EACH COMPARTMENT BEING CONNECTED TO THE OUTLET END OF EACH COMPARTMENT BEING CONNECTED TO THE INLET END OF THE COMPARTMENT ADJACENT IN THE DIRECTION OF FLOW THROUGH A PARTITION MEMBER FIXED WITHIN THE TOWER IN A PLANE SUBSTANTIALLY TRANSVERSE TO THE LONGITUDINAL AXIS OF THE TOWER ADAPTED TO ALLOW BUT RESTRICT GAS FLOW THROUGH THE TOWER IN THE DIRECTION FROM INLET MEANS TO OUTLET MEANS, EACH OF SAID PARTITION MEMBERS BEING PARTIALLY OCCLUDED BY A BAFFLE PLATE FITTED ON THE INLET SIDE IN A PLANE SUBSTANTIALLY TRANSVERSE TO THE LONGITUDINAL AXIS OF THE TOWER. THE INVENTION ALSO RESIDES IN THE CONTINUOUS PROCESS OF FERMANTATION RESULTING IN INCREASED RATES OF OUTPUT OF FERMENTATION PRODUCTS FOR A GIVEN VOLUME OF FERMENTER.
摘要:
A continuous process for fermentation of mixed cultures of microorganisms includes inoculating at least two fermentation tanks with different types of microorganisms and recycling the culture liquors between the tanks. Fermentation products are recovered at intermediate stations in the recycling system.
摘要:
IMPROVED PROCESS FOR THE PREPARATION OF ANTIMYCIN A IN WHICH A SUITABLE SOURCE OF ASSIMILABLE CARBON IS ADDED DURING FERMENTATION TOGETHER WITH CONTINUOUS CONTROL OF PH AT ABOUT PH 6.0, AND AN IMPROVED METHOD OF EXTRACTION IS BEING USED.
摘要:
A METHOD OF FERMENTATION UTILIZING A MULTI-STAGE FERMENTING DEVICE, WHICH COMPRISES THE STEP OF CULTURING MICRO-ORGANISMS AEROBICALLY OR ANAEROBICALLY, IN A DEVICE COMPRISING A VERTICAL STACK OF COMPARTMENTS SEPARATED BY HORIZONTAL PLATES PROVIDED WITH ONE OR MORE HOLES BY INTRODUCING GAS AND CULTURE MEDIUM FROM THE BOTTOM AND
MAINTAINING A LAYER OF GAS BENEATH EACH PLATE WHICH PREVENTS BACKFLOW OF MEDIUM FROM ANY COMPARTMENT TO ONE THEREBELOW.