High levels of copper retard the growth of Saccharomyces cerevisiae by altering cellular morphology and reducing its potential for ethanolic fermentation

Herein, we proposed a novel, facile method for flocculation of Saccharomyces cerevisiae cells via nanoZnO. According to results, the presence of nanoZnO could significantly facilitate the flocculation of the yeast cells without damage the cellular morphology. Notably, the yeast cells flocculated by using nanoZnO displayed certain antibacterial property. Moreover, the cell activity was almost remained after flocculated by this method.

Adaptation to low pH and lignocellulosic inhibitors resulting in ethanolic fermentation and growth of Saccharomyces cerevisiae

AMB Express ◽

10.1186/s13568-016-0234-8 ◽

2016 ◽

Vol 6 (1) ◽

Cited By ~ 19

Author(s):

Venkatachalam Narayanan ◽

Violeta Sànchez i Nogué ◽

Ed W. J. van Niel ◽

Marie F. Gorwa-Grauslund

Keyword(s):

Saccharomyces Cerevisiae ◽

Low Ph ◽

Ethanolic Fermentation

The influence of Cu concentration on ethanolic fermentation by Saccharomyces cerevisiae

Journal of Bioscience and Bioengineering ◽

10.1016/s1389-1723(00)80104-8 ◽

2000 ◽

Vol 90 (2) ◽

pp. 163-167 ◽

Cited By ~ 23

Author(s):

Manuel Azenha ◽

Maria Teresa Vasconcelos ◽

Pedro Moradas-Ferreira

Keyword(s):

Saccharomyces Cerevisiae ◽

Ethanolic Fermentation

Fermentation of irradiated sugarcane must

Scientia Agricola ◽

10.1590/s0103-90162003000400011 ◽

2003 ◽

Vol 60 (4) ◽

pp. 677-681 ◽

Cited By ~ 4

Author(s):

André Ricardo Alcarde ◽

Júlio Marcos Melges Walder ◽

Jorge Horii

Keyword(s):

Saccharomyces Cerevisiae ◽

Gamma Radiation ◽

Dose Rate ◽

Ethanol Yield ◽

Ethanolic Fermentation ◽

Yeast Saccharomyces Cerevisiae ◽

Efficient Treatment ◽

Yeast Viability ◽

Volatile Acidity ◽

Lethal Doses

Bacillus and Lactobacillus are bacteria that usually contaminate the ethanolic fermentation by yeasts and may influence yeast viability. As microorganisms can be killed by ionizing radiation, the efficacy of gamma radiation in reducing the population of certain contaminating bacteria from sugarcane must was examined and, as a consequence, the beneficial effect of lethal doses of radiation on some parameters of yeast-based ethanolic fermentation was verified. Must from sugarcane juice was inoculated with bacteria of the genera Bacillus and Lactobacillus. The contaminated must was irradiated with 2.0, 4.0, 6.0, 8.0 and 10.0 kGy of gamma radiation. After ethanolic fermentation by the yeast (Saccharomyces cerevisiae) the total and volatile acidity produced during the process were evaluated; yeast viability and ethanol yield were also recorded. Treatments of gamma radiation reduced the population of the contaminating bacteria in the sugarcane must. The acidity produced during the fermentation decreased as the dose rate of radiation increased. Conversely, the yeast viability increased as the dose rate of radiation increased. Gamma irradiation was an efficient treatment to decontaminate the must and improved its parameters related to ethanolic fermentation, including ethanol yield, which increased 1.9%.

Repeated batch ethanolic fermentation of very high gravity medium by immobilized Saccharomyces cerevisiae

Annals of Microbiology ◽

10.1007/s13213-011-0207-8 ◽

2011 ◽

Vol 61 (4) ◽

pp. 863-869 ◽

Cited By ~ 10

Author(s):

Pradeep Puligundla ◽

Rama Mohan Poludasu ◽

Jithan Kumar Rai ◽

Vijaya Sarathi Reddy Obulam

Keyword(s):

Saccharomyces Cerevisiae ◽

High Gravity ◽

Ethanolic Fermentation ◽

Very High Gravity ◽

Repeated Batch ◽

Very High

Significance of the surface of immobilized Saccharomyces cerevisiae cells in ethanolic fermentation

Acta Biotechnologica ◽

10.1002/abio.370080502 ◽

1988 ◽

Vol 8 (5) ◽

pp. 395-400 ◽

Cited By ~ 3

Author(s):

R. Berger ◽

I. Rühlemann

Keyword(s):

Saccharomyces Cerevisiae ◽

Ethanolic Fermentation