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Production of functional killer protein in batch cultures upon a shift from aerobic to anaerobic conditions BABT
Silva,Gildo Almeida da; Poli,Jandora Severo; Poletto,Carolina Madalozzo; Schaker,Patricia Dayane Carvalho; Valente,Patricia.
The aim of this work was to study the production of functional protein in yeast culture. The cells of Saccharomyces cerevisiae Embrapa 1B (K+R+) killed a strain of Saccharomyces cerevisiae Embrapa 26B (K-R-)in grape must and YEPD media. The lethal effect of toxin-containing supernatant and the effect of aeration upon functional killer production and the correlation between the products of anaerobic metabolism and the functional toxin formation were evaluated. The results showed that at low sugar concentration, the toxin of the killer strain of Sacch. cerevisiae was only produced under anaerobic conditions . The system of killer protein production showed to be regulated by Pasteur and Crabtree effects. As soon as the ethanol was formed, the functional...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Killer yeast; Crabtree effect; Pasteur effect; Inhibition; Mycocinogenic strain.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000300022
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