Assessment of the effect of nitrogen concentration on fermentation and selection of a highly competitive Saccharomyces cerevisiae strain for efficient ethanol production

Simple item page
dc.careerEscuela de Ciencias Biológicases
dc.category.authorprincipalen_US
dc.contributor.authorCarvajal Barriga, Enrique Javier
dc.contributor.authorPortero Barahona, Patricia
dc.contributor.correspondingCarvajal Barriga, Enrique Javier
dc.countryEcuadores
dc.date.accessioned2023-11-04T21:43:07Z
dc.date.available2023-11-04T21:43:07Z
dc.date.issued2019
dc.dedication.authorTCes
dc.description.abstractThe optimum nitrogen concentration for media supplementation and strain dominance are aspects of key importance to the industrial production of ethanol with a view to reducing costs and increasing yields. In this work, these two factors were investigated for four ethanologenic Saccharomyces cerevisiae strains (CLQCA-INT-001, CLQCA-INT-005, CLQCA-10-099, and UCLM 325), selected from the screening of 150 isolates, mostly from Ecuadorian yeast biodiversity. The effect of nitrogen concentration was assessed in terms of cellular growth, glucose consumption and ethanol production, and the yeast strains’ dominance was evaluated in continuous co-fermentation with cellular recycling by mitochondrial DNA analyses. Among the four selected yeast strains under study, CLQCA-INT-005 presented the highest glucose consumption at a nitrogen supplement concentration as low as 0.4 g·L −1, attaining an ethanol yield of up to 96.72% in 24 h. The same yeast strain was found to be highly competitive, showing a dominance of 80% after four cycles of fermentation in co-culture. Thus, CLQCA-INT-005 may be deemed as a very promising candidate to be used both at pilot-plant scale and at industrial scale cellulosic ethanol production.en_US
dc.facultyCiencias Exactas y Naturaleses
dc.id.author1706348768
dc.id.author1803431640
dc.id.type1
dc.identifier.issn1996-1073
dc.identifier.urihttps://repositorio.puce.edu.ec/handle/123456789/5967
dc.identifier.urihttps://www.mdpi.com/1996-1073/12/13/2614
dc.indexed.databaseOtheres
dc.language.isoen
dc.list.authorsPortero, P., Martín-Gil, J., Martín-Ramos, P., Briones, A., y Carvajal, E.
dc.magazine.pageRange1-12
dc.magazine.titleEnergiesen_US
dc.magazine.volumeChapter12 (13)
dc.rightsOpenAccessen
dc.statepublisheden_US
dc.subjectFermentaciónes
dc.subjectNitrógenoes
dc.subjectEtánoles
dc.subjectCompuestos orgánicoses
dc.subjectFermentación
dc.subjectNitrógeno
dc.subjectEtanol
dc.subjectCompuestos orgánicos
dc.titleAssessment of the effect of nitrogen concentration on fermentation and selection of a highly competitive Saccharomyces cerevisiae strain for efficient ethanol productionen_US
Files
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Plain Text
Description:
Download
Collections
Artículos en revistas científicas indexadas (Journals)