Behaviour of yeast fermentation in the presence of zeolite

Roque‐Malherbe, R.; Delgado, Ronan Jacques Rezende; Contreras, Carolina; Lago, Amanda Maria Teixeira

doi:10.1007/bf01033202

Cited by 13 publications

(1 citation statement)

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“…The immobilization of microorganisms onto other zeolite types has been reported. 10,11,19 SivaRaman et al 10 and Roque Malherbe et al11 suggested that adhesion or interaction between cells, which could contribute to the cells stability and protect from toxic compounds, could be favoured by zeolite, the same e †ect could occur in the present case.…”

Section: Cellsèzeolite Interactionsmentioning

confidence: 60%

Effect of zeolite addition on ethanol production from glucose bySaccharomyces bayanus

Castellar

Aires-Barros²,

Cabral³

et al. 1998

J. Chem. Technol. Biotechnol.

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Zeolite NaY at 5 g dm~3 concentration, was selected to improve the production of ethanol fermentation by Saccharomyces bayanus from high glucose concentration media. The highest ethanol productivity (3É07 g dm~3 h~1) was obtained from a 220 g dm~3 initial glucose concentration, while the highest ethanol concentration (130 g dm~3) was obtained from a 350 g dm~3 glucose medium. The zeolite is believed to have acted as a pH regulator, maintaining the pH value around 3É7È3É8. Under these conditions cellular viability was preserved and metabolic activity was maintained. Thus all the glucose was consumed, and high ethanol productivity and concentration were obtained. Therefore, the addition of zeolite improved ethanol production from high concentrations of glucose by Saccharomyces bayanus.

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Section: Cellsèzeolite Interactionsmentioning

confidence: 60%