Abstract: The process consists of cultivating, at a temperature below 28.degree. C., the fungus Trichoderma Album in liquid nutrient media, the pH of said media being kept at a value comprised between about 3.7 and 4.8, the dissolved oxygen content being from about 6 to 10 mg/l. The cultivation is carried out with non-traumatizing, efficient stirring and under conditions such that multiplication is practically nil.

Abstract: Process for the culture of aerobic microorganisms in a culture medium provided with at least one source of oxygen, at least one source of carbon and at least one source of hydrogen, comprises providing oxygen originating from the decomposition of hydrogen peroxide as a source of oxygen and providing at least one highly inflammable product as a source of carbon and hydrogen.

Abstract: For the production of biological masses of microbial origin, the yeast strain NRRL-Y 11119 uses ethanol as a carbon source and an energy source simultaneously. Proteic biomasses of a very good quality are obtained.

Abstract: Growth of bacteria belonging to new species of genera Pseudomonas, Microcyclus and Hyphomicrobium upon culture media comprising sources of assimilable carbon, for example oxygenated hydrocarbons, and inorganic nutrients to produce protein compositions and/or other fermentation products, for example amino acids. The protein compositions produced are suitable for use as protein supplements in human and animal foods.

Abstract: An acetone-insoluble organic acid product from the nitric oxidation of lignite is useful in growing single cell protein.

Abstract: Single cell protein (SCP) and other fermentation products are produced by aerobic fermentation processes at relatively high fermentation temperature conditions employing oxygenated hydrocarbon compounds, such as an alcohol, as carbon and energy source material, and employing a unique thermophilic mixed culture of bacteria NRRL B-8158 as microbial conversion agent.

Abstract: The invention relates to nutritious materials containing proteins wherein said proteins are originated from osmosensitive microorganisms, i.e. microorganisms the cell walls of which are spontaneously broken when brought into contact with a medium of low osmotic pressure.

Abstract: The invention relates to Fusarium graminearum Schwabe deposited with the Commonwealth Mycological Institute and assigned the number IMI 145425 and variants and mutants thereof, as well as a culture medium containing the same.

Abstract: Biochemically degradable organic material, for example, animal waste matter, such as manure produced by hogs, sheep, cattle, chickens and humans is aerobically digested at thermophilic digestion temperatures to produce various digested products, including single cell proteinaceous material suitable for feeding to animals as part of the animals' nutritive diet. Biodegradable material is introduced into a digesting zone that is sufficiently insulated to prevent any substantial heat loss from the digesting material during the digestion process. An oxygenating gas such as air is introduced into the digesting material during all phases of the digestion. The digesting material is simultaneously vigorously agitated. The waste material is placed into the digester at ambient temperatures and is contacted with the oxygenating gas at a rate and is agitated at a level effective to cause thermogenic microbial digestion of the materials present in the waste matter.

Abstract: A broth containing yeast cells is continuously or intermittently removed from a fermentor. Then, yeast cells are separated from the filtrate using a cell separator, or further washed with water. Then, the yeast cells so obtained are recycled to the fermentor, whereby yeasts are cultivated at a high cell concentration of from 6% to about 20% based on dry weight. As discussed herein, by removing the filtrate from the cultivation system, there is no accumulation of metabolites and salts prohibiting the cultivation of yeasts, and further the growth of miscellaneous microorganisms which interfere with yeast cell growth, is surprisingly suppressed.

Abstract: 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 producing substantially pure streams of oxygen and nitrogen. The oxygen stream is used to enrich a carrier fluid and used for aeration of the fermenter. The off-gases from the fermenter are separated into a generally high pressure, substantially pure carbon dioxide stream which can be used for enhanced oil recovery and a residual recycle stream to which oxygen is again added and which is returned to the fermenter. The single cell protein is dried and further processed as required for human or animal consumption.

Abstract: A process for the preparation of fermentation media suitable for culturing yeast for animal consumption and microspores and/or for the production of protein from vegetable waste matter. Any vegetable matter containing a considerable amount of hemicelluloses, pentosans, pectins or other polysaccharides in addition to cellulose and not very suitable for direct feeding of animals is usable as starting material. Preferred representatives are: corn-cob and/or stalks, reeds, sunflower stalks, fallen autumn leaves. An animal food product made by the method is also disclosed.

Abstract: 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, and their use by the protein producing bacteria.

Abstract: A process for the production of microbial protein and lipid from vegetable carbohydrates including starch by culture of a microbe, which comprises a combination of the steps of liquefying starch with a dextrinogenic enzyme in a liquefaction tank, effecting simultaneous saccharification and culture of the microbe in a fermentation tank by aseptically adding a saccharogenic amylase to the culture medium produced in the liquefying step, and separating the cultured microbial cells and lipid from the culture medium.

Abstract: Growth of yeasts requiring organic growth factors such as vitamins in an aerobic fermentation process is improved by dechlorination of residual chlorine from residual chlorine-containing make-up water.

Abstract: The strains, PS 64-103; PS 24-44; and PB 33-48 are mutation products of the perfect fungi Polyporus squamosus and Polyporus brumalis and are characterized by the fact that in a liquid nutrient medium they tend to form hiffs, colonies and secondary spores, subdividing in geometric progression with rapid growth which varies in speed, depending on the seeding material ratio in a period of from 6 to 36 hours. The nutrient medium in which the mycelium is developed is quite simple in composition and comprises three components, i.e., 4-5% of molasses; 0.2% of NH.sub.4 NO.sub.3 ; 0.12% of KH.sub.2 PO.sub.4 and 0.04% of vegetable oil as foam suppressant. The strains assimilate from 50 to 60% of a given amount of saccharoses, accumulating to 1 to 1.2% of dry biological mass.The fungi mycelium can be adapted as a food product and is also used as an additive to various meat and other food products, i.e., sausage, minced meat, soft and smoked cheeses, vegetable canned food, soups, and bread and other bakery products.

Abstract: Cellulose fermentation by cellulose-digesting microorganisms is increased by conducting the fermentation in the presence of a minor amount of a compound of the formula ##STR1## wherein R' is haloalkyl and the carbocyclic ring has from 0 to 3 sites of olefinic unsaturation.

Abstract: Growth of pseudomycelial yeasts and removal of bacterial contamination in conventional fermentation processes are accomplished by withdrawing product as a foam from the fermentor.

Abstract: A continuous fermentation process for the production of single cell protein employing fermentation apparatus for improved oxygen utilization comprising a fermentation section and an upper contiguous absorber section communicating therewith wherein a gas contacting zone is employed to contact cooled recycled fermentation liquid and make up nutrients with partially oxygen depleted oxygenating gas in countercurrent flow whereby the oxygen content of the fermentation liquid is enriched.

Abstract: A process for the preparation of a biomass is disclosed by cultivation of bacteria of the genus Methylomonas under aerobic conditions in a nutrient medium containing methanol as the sole carbon source, nitrogen sources and essential mineral salts, which comprises using a strain of the species Methylomonas clara ATCC 31226. The single cell protein thus obtained has a low content of nucleic acids, fats and carbohydrates and is especially suitable to prepare food and feed.