A predictive model for the spontaneous synchronization of Saccharomyces cerevisiae grown in continuous culture. I. Concept

1988 ◽  
Vol 7 (4) ◽  
pp. 299-317 ◽  
Author(s):  
C. Strässle ◽  
B. Sonnleitner ◽  
A. Fiechter
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Continuous Culture ◽  
Predictive Model

scholarly journals A yeast metabolome-based model for an ecotoxicological approach in the management of lignocellulosic ethanol stillage

2019 ◽  
Vol 6 (1) ◽  
pp. 180718 ◽  
Author(s):  
Luca Roscini ◽  
Lorenzo Favaro ◽  
Laura Corte ◽  
Lorenzo Cagnin ◽  
Claudia Colabella ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Saccharomyces Cerevisiae ◽  
Predictive Model ◽  
Lignocellulosic Ethanol ◽  
Bioethanol Production ◽  
Inhibitor Concentration ◽  
Promising Tool ◽  
Different Types ◽  
The Relationship ◽  
Ecotoxicological Bioassay

Lignocellulosic bioethanol production results in huge amounts of stillage, a potentially polluting by-product. Stillage, rich in heavy metals and, mainly, inhibitors, requires specific toxicity studies to be adequately managed. To this purpose, we applied an FTIR ecotoxicological bioassay to evaluate the toxicity of lignocellulosic stillage. Two weak acids and furans, most frequently found in lignocellulosic stillage, have been tested in different mixtures against three Saccharomyces cerevisiae strains. The metabolomic reaction of the test microbes and the mortality induced at various levels of inhibitor concentration showed that the strains are representative of three different types of response. Furthermore, the relationship between concentrations and FTIR synthetic stress indexes has been studied, with the aim of defining a model able to predict the concentrations of inhibitors in stillage, resulting in an optimized predictive model for all the strains. This approach represents a promising tool to support the ecotoxicological management of lignocellulosic stillage.

Studies in intermicrobial symbiosis. Saccharomyces cerevisiae and Lactobacillus casei

1972 ◽  
Vol 18 (11) ◽  
pp. 1733-1742 ◽  
Author(s):  
R. D. Megee III ◽  
J. F. Drake ◽  
A. G. Fredrickson ◽  
H. M. Tsuchiya
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Continuous Culture ◽  
Mixed Culture ◽  
Growth Medium ◽  
Lactobacillus Casei ◽  
Mixed Cultures ◽  
Genetic Characteristics ◽  
Culture Techniques ◽  
Pure Cultures

Saccharomyces cerevisiae and a riboflavin assay strain of Lactobacillus casei have been propagated anaerobically in mixed culture. Both batch and continuous culture techniques were used. By varying the concentrations of glucose and riboflavin in the growth medium, it was possible to produce symbioses of commensalism + competition, competition, and mutualism + competition. In short, the interaction prevailing is determined by the medium as well as by the genetic characteristics of the organisms. The behavior of the mixed cultures in these situations was predicted from data taken on pure cultures of the organisms.

scholarly journals Involvement of glutathione in the regulation of respiratory oscillation during a continuous culture of Saccharomyces cerevisiae

Microbiology ◽  
1999 ◽  
Vol 145 (10) ◽  
pp. 2739-2745 ◽  
Author(s):  
Douglas B. Murray ◽  
David Lloyd ◽  
Hiroshi Kuriyama ◽  
Frank Engelen
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Continuous Culture
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