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Bioconversion of corn straw by yeast into biomass protein under the influence of trace elements
Egyptian Journal of Physiological Sciences. 1994; 18 (1): 227-42
em Inglês | IMEMR | ID: emr-107927
Biblioteca responsável: EMRO
ABSTRACT
Saccharomyces carlsbergensis has been cultivated on fermentation media consisting of corn straw hydrolysate [CSH] as a sole carbon and nitrogen source, and supplemented with different concentrations of either iron, zinc or boron. Growth features, especially protein production by the yeast have been studied. The presence of low and moderate concentrations of iron boron in the fermentation media raised the biomass gain and the protein content of the yeast cells, while high concentrations of these trace elements retarded both growth and protein synthesis. Zinc impaired both biomass yield and protein production by the tested organism. Boron was found to be a good stimulant, when added in a concentration of 10-5 M to corn straw hydrolysate. Addition of iron at a 10-4 M concentration to the fermentation media in a mixture with boron at a level of 10-6 M enhanced both growth and protein yield. Also, addition of boron at level 10-5 M in a mixture with iron at 10-5 M concentration to corn straw hydrolysate media stimulated both growth and protein yield. This constitutes a promising fermentation medium for protein production by yeast
Assuntos
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Base de dados: IMEMR Assunto principal: Saccharomyces / Oligoelementos / Proteínas / Biomassa Idioma: Inglês Revista: Egypt. J. Physiol. Sci. Ano de publicação: 1994
Buscar no Google
Base de dados: IMEMR Assunto principal: Saccharomyces / Oligoelementos / Proteínas / Biomassa Idioma: Inglês Revista: Egypt. J. Physiol. Sci. Ano de publicação: 1994
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