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Your search keyword '"Nitrogen analysis"' showing total 6 results
Start Over Descriptor "Nitrogen analysis" Topic penicillium Language russian
6 results on '"Nitrogen analysis"'

1. [The biosynthesis of low-molecular-weight nitrogen-containing secondary metabolite-alkaloids by the resident strains of Penicillium chrysogenum and Penicillium expansum isolated on the board of the Mir space station ].

Author

Kozlovskiĭ AG, Zhelifonova VP, Adanin VM, Antipova TV, Shnyreva AV, and Viktorov AN

Subjects
Alkaloids analysis, Alkaloids chemistry, Chromatography, Thin Layer, Ergolines analysis, Ergolines metabolism, Heterocyclic Compounds, 4 or More Rings, Hydroxyquinolines analysis, Hydroxyquinolines metabolism, Molecular Weight, Nitrogen analysis, Ovomucin analysis, Ovomucin biosynthesis, Penicillium metabolism, Penicillium chrysogenum metabolism, Piperazines analysis, Quinolones analysis, Quinolones metabolism, Spectrophotometry, Ultraviolet, Tryptamines analysis, Tryptamines biosynthesis, Alkaloids biosynthesis, Indoles, Penicillium isolation & purification, Penicillium chrysogenum isolation & purification, Spacecraft
Abstract

The analysis of the absorption spectra of the low-molecular-weight nitrogen-containing secondary metabolites--alkaloids--of 4 Penicillium chrysogenum strains and 6 Penicillium expansum strains isolated on board the Mir space station showed that all these strains synthesize metabolites of alkaloid origin (roquefortine, 3,12-dihydroroquefortine, meleagrin, viridicatin, viridicatol, isorugulosuvin, rugulosuvin B, N-acetyl-tryptamine, and a "yellow metabolite" containing the benzoquinone chromophore).

Published
2002

2. [Nitrogen-containing mycotoxins of fungi of Aspergillus and Penicillium species infesting grain and its products].

Author

Reshetilova TA, Vinokurova NG, and L'vova LS

Subjects
Food Handling, Mycotoxins chemistry, Aspergillus metabolism, Edible Grain microbiology, Food Microbiology, Mycotoxins metabolism, Nitrogen analysis, Penicillium metabolism
Abstract

The review summarizes the literature data on distribution of nitrogen-containing mycotoxins (alkaloids) among Penicillium and Aspergillus fungi infesting grain and products of grain processing. Particular attention in given to clavins (ergotalkaloids) and tremorgens (roquefortine, verruculogen, penitrems).

Published
1993

3. [Determining the level of total nitrogen in wastes from the microbiological industry].

Author

Vlasenko IIu, Kroshilova TM, Krunchak VG, and Mel'nikova OIu

Subjects
Animals, Cattle, Nitrogen chemistry, Penicillin G metabolism, Penicillium metabolism, Russia, Histidine chemistry, Industrial Microbiology, Industrial Waste analysis, Nitrogen analysis, Penicillium chemistry, Phenylalanine chemistry, Serum Albumin, Bovine analysis, Sulfanilic Acids chemistry
Abstract

Optimization of the Kjeldahl method for determination of total nitrogen in the objects of microbial synthesis was performed in regard to biomass of the benzylpenicillin-producing culture, activated sludge and certain organic compounds. Mathematical processing of the data was carried out, which showed that the difference in the mean values for the five tested conditions of mineralization was insignificant. The method is useful in assaying the final and intermediate products as well as the waste in biotechnological production.

Published
1991

4. [Study of the mycelial carbohydrates of Penicillium chrysogenum and of its inactive mutant].

Author

Nikol'skiĭ LM and Levitov MM

Subjects
Carbohydrates analysis, Culture Media, Fasting, Nitrogen analysis, Penicillins biosynthesis, Penicillium chrysogenum analysis, Penicillium chrysogenum growth & development, Time Factors, Carbohydrate Metabolism, Mutation, Penicillium metabolism, Penicillium chrysogenum metabolism
Abstract

Metabolism of carbohydrates was studied in Penicillium chrysogenum 194 and in its inactive mutant growing on a defined medium, and also in the washed mycelium of these cultures. The percentage of nitrogen decreased in the mycelium of both strains with aging as a result of the accumulation of carbohydrate-containing substances dissolved in cold and hot hydrochloric acid. The rate of synthesis of these substances in the inactive mutant is higher than in the strain 194. The difference is especially pronounced in experiments with the washed mycelium. Carbohydrates dissolved in the hot acid are assimilated in largest amounts among carbohydrate-containing substances in the mycelium of the strain 194 growing in the conditions of starvation.

Published
1975

6. [Use of gluten as the source of nitrogen for the griseofulvin producer].

Author

Kuznetsova NA, Bolyshakova EN, and Pemrova EB

Subjects
Amino Acids analysis, Carbohydrates analysis, Fermentation, Glutens analysis, Lactates analysis, Nitrogen analysis, Phosphorus analysis, Plant Extracts analysis, Plant Extracts pharmacology, Starch analysis, Vitamins analysis, Culture Media pharmacology, Glutens pharmacology, Griseofulvin biosynthesis, Penicillium metabolism, Zea mays analysis
Published
1968

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