000079752 001__ 79752
000079752 005__ 20200716101455.0
000079752 0247_ $$2doi$$a10.3390/en12132614
000079752 0248_ $$2sideral$$a112602
000079752 037__ $$aART-2019-112602
000079752 041__ $$aeng
000079752 100__ $$aPortero Barahona, Patricia
000079752 245__ $$aAssessment of the effect of nitrogen concentration on fermentation and selection of a highly competitive Saccharomyces cerevisiae strain for efficient ethanol production
000079752 260__ $$c2019
000079752 5060_ $$aAccess copy available to the general public$$fUnrestricted
000079752 5203_ $$aThe 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.
000079752 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000079752 590__ $$a2.702$$b2019
000079752 591__ $$aENERGY & FUELS$$b63 / 112 = 0.562$$c2019$$dQ3$$eT2
000079752 592__ $$a0.635$$b2019
000079752 593__ $$aControl and Optimization$$c2019$$dQ2
000079752 593__ $$aElectrical and Electronic Engineering$$c2019$$dQ2
000079752 593__ $$aRenewable Energy, Sustainability and the Environment$$c2019$$dQ2
000079752 593__ $$aEnergy Engineering and Power Technology$$c2019$$dQ2
000079752 593__ $$aFuel Technology$$c2019$$dQ2
000079752 593__ $$aEnergy (miscellaneous)$$c2019$$dQ2
000079752 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000079752 700__ $$aMartín Gil, Jesús
000079752 700__ $$0(orcid)0000-0003-2713-2786$$aMartín Ramos, Pablo$$uUniversidad de Zaragoza
000079752 700__ $$aBriones Pérez, Ana
000079752 700__ $$aCarvajal Barriga, Enrique Javier
000079752 7102_ $$15011$$2500$$aUniversidad de Zaragoza$$bDpto. CC.Agrar.y Medio Natural$$cArea Ingeniería Agroforestal
000079752 773__ $$g12, 13 (2019), 2614 [12 pp.]$$pENERGIES$$tEnergies$$x1996-1073
000079752 8564_ $$s1590914$$uhttps://zaguan.unizar.es/record/79752/files/texto_completo.pdf$$yVersión publicada
000079752 8564_ $$s96247$$uhttps://zaguan.unizar.es/record/79752/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000079752 909CO $$ooai:zaguan.unizar.es:79752$$particulos$$pdriver
000079752 951__ $$a2020-07-16-09:09:11
000079752 980__ $$aARTICLE