Construction of killer industrial yeast Saccharomyces cerevisiae HAU-1 and its fermentation performance
Braz. j. microbiol
; 41(2): 477-485, Apr.-June 2010. tab
Artigo
em Inglês
| LILACS
| ID: lil-545357
Biblioteca responsável:
BR32.1
ABSTRACT
Saccharomyces cerevisiae HAU-1, a time tested industrial yeast possesses most of the desirable fermentation characteristics like fast growth and fermentation rate, osmotolerance, high ethanol tolerance, ability to ferment molasses, and to ferment at elevated temperatures etc. However, this yeast was found to be sensitive against the killer strains of Saccharomyces cerevisiae. In the present study, killer trait was introduced into Saccharomyces cerevisiae HAU-1 by protoplast fusion with Saccharomyces cerevisiae MTCC 475, a killer strain. The resultant fusants were characterized for desirable fermentation characteristics. All the technologically important characteristics of distillery yeast Saccharomyces cerevisiae HAU-1 were retained in the fusants, and in addition the killer trait was also introduced into them. Further, the killer activity was found to be stably maintained during hostile conditions of ethanol fermentations in dextrose or molasses, and even during biomass recycling.
Texto completo:
Disponível
Coleções:
Bases de dados internacionais
Base de dados:
LILACS
Assunto principal:
Saccharomyces cerevisiae
/
Leveduras
/
Melaço
/
Vitis
/
Fermentação
Idioma:
Inglês
Revista:
Braz. j. microbiol
Assunto da revista:
Microbiologia
Ano de publicação:
2010
Tipo de documento:
Artigo
País de afiliação:
Índia
Instituição/País de afiliação:
CCS Haryana Agric/IN
/
University of Jammu/IN