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ESTUDOS SOBRE A DOSAGEM MICROBIOLOGICA DAS VITAMINAS DO COMPLEXO B - II. NIACINA
Villela, Gilberto G. et al. | Date Issued: 1945
Alternative title
Microbiological assay for niacine
Author
Villela, Gilberto G.
Hargraves, Alberto B.
Affilliation
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Rio de Janeiro, RJ, Brasil.
Instituto de Biofísica da Universidade do Brasil. Rio de janeiro, RJ, Brasil.
Abstract
The microbiological assay method of Snell and Wright for niacine was studied and some modifications of the basal medium were proposed. A maximal growth of the "Lactobacillus arabinosus" was obtained by the addition to the basal medium of 25 mg % asparagine and increasing the percentages of glucose and sodium acetate. Liver and yeast extracts were assayed satisfactory and the niacine added was recovered quantitatively.
Keywords in Portuguese
Estudo
Dosagem Microbiológica
Vitamina Complexo B
Niacina
 
Keywords
Microbiological assay
Niacine
 
Publisher
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz.
Citation
VILLELA, Gilberto G.; HARGRAVES, Alberto B. Estudos sobre a dosagem microbiologica das vitaminas do complexo B - II. Niacina. Memórias do Instituto Oswaldo Cruz, Rio de Janeiro, v. 42, n. 1, p. 1 -8, 1945.
DOI
10.1590/S0074-02761945000100013
ISSN
0074-0206