Effect of ultraviolet radiation on physiological and biochemical properties of yeast Saccharomyces cerevisiae during fermentation of ultradispersed starch raw material
Electron. j. biotechnol
; 31: 61-66, Jan. 2018. graf, ilus, tab
Artigo
em Inglês
| LILACS
| ID: biblio-1022044
Biblioteca responsável:
CL1.1
ABSTRACT
Background:
Study of correlation between pretreatment of yeast with ultraviolet radiation and efficiency of further fermentation of wort made of ultrafine grain particles to ethanol.Results:
We investigated three races of industrial yeast Saccharomyces cerevisiae (native and irradiated by ultraviolet). Physiological properties during fermentation of starchy wort were tested in all variants. It was shown that activation of the yeast by ultraviolet radiation allows to further increase the ethanol yield by 25% on average compared with the native yeast races when using thin (up to micro- and nano-sized particles) or standard grain grinding.Conclusions:
Using mechanical two-stage grinding of starchy raw materials and ultraviolet pretreatment of yeast, the efficiency of saccharification of starch and fermentation of wort to ethanol was increased.
Texto completo:
Disponível
Coleções:
Bases de dados internacionais
Base de dados:
LILACS
Assunto principal:
Saccharomyces cerevisiae
/
Raios Ultravioleta
/
Leveduras
/
Etanol
Idioma:
Inglês
Revista:
Electron. j. biotechnol
Assunto da revista:
Biotecnologia
Ano de publicação:
2018
Tipo de documento:
Artigo
/
Documento de projeto
País de afiliação:
Federação Russa
Instituição/País de afiliação:
Ogarev Mordovia State University/RU