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Nitrogen Sources Screening for Ethanol Production Using Carob Industrial Wastes

dc.contributor.authorRaposo, Sara
dc.contributor.authorConstantino, Ana
dc.contributor.authorRodrigues, F.
dc.contributor.authorRodrigues, Brígida
dc.contributor.authorLima-Costa, Maria Emília
dc.date.accessioned2019-11-20T15:07:51Z
dc.date.available2019-11-20T15:07:51Z
dc.date.issued2017-02
dc.description.abstractNowadays, bioethanol production is one of the most important technologies by the necessity to identify alternative energy resources, principally when based on inexpensive renewable resources. However, the costs of 2nd-generation bioethanol production using current biotechnologies are still high compared to fossil fuels. The feasibility of bioethanol production, by obtaining high yields and concentrations of ethanol, using low-cost medium, is the primary goal, leading the research done today. Batch Saccharomyces cerevisiae fermentation of high-density sugar from carob residues with different organic (yeast extract, peptone, urea) and inorganic nitrogen sources (ammonium sulfate, ammonium nitrate) was performed for evaluating a cost-effective ethanol production, with high ethanol yield and productivity. In STR batch fermentation, urea has proved to be a very promising nitrogen source in large-scale production of bioethanol, reaching an ethanol yield of 44 % (w/w), close to theoretical maximum yield value and an ethanol production of 115 g/l. Urea at 3 g/l as nitrogen source could be an economical alternative with a great advantage in the sustainability of ethanol production from carbohydrates extracted from carob. Simulation studies, with experimental data using SuperPro Design software, have shown that the bioethanol production biorefinery from carob wastes could be a very promising way to the valorization of an endogenous resource, with a competitive cost.
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1007/s12010-016-2252-z
dc.identifier.issn0273-2289
dc.identifier.issn1559-0291
dc.identifier.urihttp://hdl.handle.net/10400.1/13243
dc.language.isoeng
dc.peerreviewedyes
dc.publisherHumana Press Inc
dc.subjectSaccharomyces-Cerevisiae
dc.subjectBioethanol production
dc.subjectSorghum juice
dc.subjectYeast
dc.subjectTechnologies
dc.subjectKinetics
dc.subjectGrowth
dc.titleNitrogen Sources Screening for Ethanol Production Using Carob Industrial Wastes
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage843
oaire.citation.issue2
oaire.citation.startPage827
oaire.citation.titleApplied Biochemistry and Biotechnology
oaire.citation.volume181
person.familyNameRaposo
person.familyNameConstantino
person.familyNameRodrigues
person.familyNameLima Costa
person.givenNameSara
person.givenNameAna
person.givenNameBrígida
person.givenNameMaria Emília
person.identifier.ciencia-idF010-54F2-9E30
person.identifier.ciencia-id631C-A162-3F1E
person.identifier.orcid0000-0001-5344-7349
person.identifier.orcid0000-0002-9968-3512
person.identifier.orcid0000-0001-9495-0813
person.identifier.orcid0000-0002-4433-5756
person.identifier.ridL-3673-2013
person.identifier.scopus-author-id7801639810
person.identifier.scopus-author-id7003633118
rcaap.rightsrestrictedAccess
rcaap.typearticle
relation.isAuthorOfPublication035b3010-5f47-4700-b196-402970ff2a69
relation.isAuthorOfPublication466ef81c-c32f-4829-a96e-97d37c157fc0
relation.isAuthorOfPublication99ea34cc-7325-4ae7-b288-31d7e43ab28f
relation.isAuthorOfPublication6eb9b8a6-dd51-4ace-809b-7d7de9cdfe36
relation.isAuthorOfPublication.latestForDiscovery035b3010-5f47-4700-b196-402970ff2a69

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