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dc.creatorGarcía Sánchez, Ángela Maríaes
dc.creatorMachado Moreira, Bernardinoes
dc.creatorFreire, Márioes
dc.creatorSantos, Ricardoes
dc.creatorMonteiro, Sílviaes
dc.creatorDias, Diamantinoes
dc.creatorNeves, Orquídiaes
dc.creatorDionísio, Amélia
dc.creatorMiller, Ana Z.
dc.date.accessioned2019-08-22T09:42:24Z
dc.date.available2019-08-22T09:42:24Z
dc.date.issued2019
dc.identifier.citationGarcía Sánchez, Á.M., Machado Moreira, B., Freire, M., Santos, R., Monteiro, S., Dias, D.,...,Miller, A.Z. (2019). Characterization of Microbial Communities Associated with Ceramic Raw Materials as Potential Contributors for the Improvement of Ceramic Rheological Properties. Minerals, 9 (5), 316-1-316-17.
dc.identifier.issn2075-163Xes
dc.identifier.urihttps://hdl.handle.net/11441/88573
dc.description.abstractTechnical ceramics are being widely employed in the electric power, medical and engineering industries because of their thermal and mechanical properties, as well as their high resistance qualities. The manufacture of technical ceramic components involves complex processes, including milling and stirring of raw materials in aqueous solutions, spray drying and dry pressing. In general, the spray-dried powders exhibit an important degree of variability in their performance when subjected to dry-pressing, which affects the efficiency of the manufacturing process. Commercial additives, such as deflocculants, biocides, antifoam agents, binders, lubricants and plasticizers are thus applied to ceramic slips. Several bacterial and fungal species naturally occurring in ceramic raw materials, such as Sphingomonas, Aspergillus and Aureobasidium, are known to produce exopolysaccharides. These extracellular polymeric substances (EPS) may confer unique and potentially interesting properties on ceramic slips, including viscosity control, gelation, and flocculation. In this study, the microbial communities present in clay raw materials were identified by both culture methods and DNA-based analyses to select potential EPS producers based on the scientific literature for further assays based on the use of EPS for enhancing the performance of technical ceramics. Potential exopolysaccharide producers were identified in all samples, such as Sphingomonas sp., Pseudomonas xanthomarina, P. stutzeri, P. koreensis, Acinetobacter lwoffi, Bacillus altitudinis and Micrococcus luteus, among bacteria. Five fungi (Penicillium citrinum, Aspergillus niger, Fusarium oxysporum, Acremonium persicinum and Rhodotorula mucilaginosa) were also identified as potential EPS producers.es
dc.description.sponsorshipFundação para a Ciência e a Tecnologia-EXPL/CTM-CER/0637/2012
dc.formatapplication/pdfes
dc.language.isoenges
dc.publisherMDPIes
dc.relation.ispartofMinerals, 9 (5), 316-1-316-17.
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectceramic raw materialses
dc.subjectindustryes
dc.subjectadditiveses
dc.subjectEPSes
dc.subjectbacteriaes
dc.subjectfungies
dc.titleCharacterization of Microbial Communities Associated with Ceramic Raw Materials as Potential Contributors for the Improvement of Ceramic Rheological Propertieses
dc.typeinfo:eu-repo/semantics/articlees
dcterms.identifierhttps://ror.org/03yxnpp24
dc.type.versioninfo:eu-repo/semantics/publishedVersiones
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.contributor.affiliationUniversidad de Sevilla. Departamento de Microbiología y Parasitologíaes
dc.relation.projectIDEXPL/CTM-CER/0637/2012
dc.relation.publisherversionhttps://doi.org/10.3390/min9050316es
dc.identifier.doi10.3390/min9050316es
idus.format.extent17 p.es
dc.journaltitleMineralses
dc.publication.volumen9es
dc.publication.issue5es
dc.publication.initialPage316-1es
dc.publication.endPage316-17es

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Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Except where otherwise noted, this item's license is described as: Attribution-NonCommercial-NoDerivatives 4.0 Internacional