1994
DOI: 10.1016/0141-0229(94)90003-5
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Process parameters and environmental factors affecting d-xylose fermentation by yeasts

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Cited by 166 publications
(92 citation statements)
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“…the addition of nutrients to the fermentation medium and the initial xylose and cell concentrations, were evaluated, aiming to understand the metabolism of this recently isolated yeast strain. Aeration is considered a factor of great influence on xylose fermentation, since it determines the partitioning of the carbon flow between growth and product formation (du Preez, 1994). As the influence of this variable was not evaluated in the present study, some care was taken to use a condition suitable for ethanol production.…”
Section: Resultsmentioning
confidence: 99%
“…the addition of nutrients to the fermentation medium and the initial xylose and cell concentrations, were evaluated, aiming to understand the metabolism of this recently isolated yeast strain. Aeration is considered a factor of great influence on xylose fermentation, since it determines the partitioning of the carbon flow between growth and product formation (du Preez, 1994). As the influence of this variable was not evaluated in the present study, some care was taken to use a condition suitable for ethanol production.…”
Section: Resultsmentioning
confidence: 99%
“…Other yeasts such as Pachysolen tannophilus, Pichia stipitis, and Candida shehate are known to ferment xylose into ethanol (Wang et al, 1980;Schneider et al, 1981). Dupreez (1994) and Hahn-Hagerdal et al (1994) noted the difficulties associated with commercial use of xylose fermenting yeasts. These include low ethanol tolerance, difficulty in optimization of fermentation parameters and slow rate of fermentation.…”
Section: Fermentationmentioning
confidence: 99%
“…La fermentation alcoolique du xylose n'est possible qu'en présence d'une faible quantité d'oxygène [123], qui doit être rigoureusement ajustée. En effet, un excès d'oxygène favorise la production cellulaire au détriment de la production d'éthanol [124].…”
Section: Levures Capables De Fermenter Les Pentosesunclassified
“…Il faut également remarquer que l'arabinose peut constituer jusqu'à 10 % des sucres totaux de certains hydrolysats et, qu'à ce jour, aucun micro-organisme capable de fermenter efficacement l'arabinose en éthanol n'a encore été identifié [123], bien que le NREL ait récemment déve-loppé des souches modifiées de Z. mobilis capables de fermenter ce sucre (164).…”
Section: Performances Sur Hydrolysatsunclassified