Výsledky vyhledávání - "L N, Astanina"

[Experience with the international standardization of the biological activity of the 3d Standard for streptomycin]

Autor: V M, Grigor'eva, L N, Astanina, O B, Ermolova, G I, Loseva, V M, Shatrova

Publikováno v: Antibiotiki. 26(8)

The activity of the third International Standard of streptomycin was determined to be equal to 755 IU/mg with the use of accurately weighed amounts of streptomycin and 78037 IU with the use of streptomycin ampoules. The Standardization Center of the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::a93317d28b90f7607f22a88f15240a79
https://pubmed.ncbi.nlm.nih.gov/6794439

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[Antibiotic sensitivity of bifidobacteria and lactobacteria used in the preparation of bifidobacterin and lactobacterin]

Autor: V M, Grigor'eva, L N, Astanina, S V, Lesniak, L N, Evtukhova

Publikováno v: Antibiotiki. 28(6)

Sensitivity of industrial strains and market preparations, such as bifidumbacterin and lactobacterin was studied with respect to 19 antibiotics. The MIC was determined with the method of serial dilutions. It was shown that bifidumbacteria and lactoba

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::c726c135f6671bc67f004aff41cf1d35
https://pubmed.ncbi.nlm.nih.gov/6881951

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[Determination of the biological activity of aminoglycoside antibiotics on a dry nutrient medium of Soviet manufacture]

Autor: V M, Grigor'eva, Z M, Andreeva, L N, Astanina, V L, Shiriaeva, N I, Gridneva

Publikováno v: Antibiotiki. 26(6)

Possible use of the dry nutrient medium manufactured in the USSR for the assay of aminoglycoside antibiotic activity with the agar diffusion method was studied. The optimal conditions for the antibiotic activity assay on this medium were developed. T

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::a9fbd7726d8dc8e34808f13170f461e5
https://pubmed.ncbi.nlm.nih.gov/7271256

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[Antibiotic sensitivity of an Escherichia coli strain used for preparing colibacterin]

Autor: L N, Astanina, L F, Shimchuk, L N, Evtukhova, V M, Grigor'eva, S V, Lesniak

Publikováno v: Antibiotiki i meditsinskaia biotekhnologiia = Antibiotics and medical biotechnology. 30(10)

Sensitivity of a E. coli strain and commercial colibacterins prepared with its use to 18 antibiotics was tested. The MIC was determined by the method of serial dilutions. It was shown that the strain and colibacterins were sensitive to 9 antibiotics

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::5b47576f7fdc0edf5afb8d2ba6d189c6
https://pubmed.ncbi.nlm.nih.gov/3911871

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[Nutrient medium for determining the biological activity of heliomycin]

Autor: E M, Bershteĭn, N G, Vasil'eva, M S, Poliak, V M, Grigor'eva, L N, Astanina

Publikováno v: Antibiotiki. 29(10)

It was shown that a nutrient medium containing only salt components except agar-agar could be used for assay of the biological activity of heliomycin. The optimal results were observed on the medium containing ammonium chloride, urea, disubstituted s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::16c05d84e2a072c7e5de5b6a79bce9d5
https://pubmed.ncbi.nlm.nih.gov/6439107

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[Determining the biological activity of levorin by the international standard of candicidin]

Autor: L O, Bo'lshakova, Iu D, Shenin, T A, Fradkova, O B, Ermolova, L N, Astanina, V M, Grigo'reva

Publikováno v: Antibiotiki i khimioterapiia = Antibiotics and chemoterapy [sic]. 34(10)

Levorin and candicidin represent close mixtures of heptaenic components. Their physicochemical and biological properties were also close. The antibiotics showed similar diffusive properties in their assay by the agar diffusion method. This made it po

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::35d62b2e40be622cb5b680690728bfc0
https://pubmed.ncbi.nlm.nih.gov/2619403

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[Basic principles of developing national standards for antibiotics]

Autor: V M, Grigor'eva, L N, Astanina, L V, Bystrova, O B, Ermolova, A F, Zak

Publikováno v: Antibiotiki. 28(8)

The main principles in preparation of national standards of the antibiotics manufacture in the USSR are compared with those of the World Health Organization. The characteristics of preparing standards of mono- and multicomponent antibiotics, as well

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::0a52ff5c0f21500885667107f5004d6d
https://pubmed.ncbi.nlm.nih.gov/6638972

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