A non-destructive digital imaging method to predict immobilized yeast-biomass

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dc.contributor.authorAcevedo, Cristian A.
dc.contributor.authorSkurtys, Olivier
dc.contributor.authorYoung, Manuel E.
dc.contributor.authorEnrione, Javier
dc.contributor.authorPedreschi, Franco
dc.contributor.authorOsorio, Fernando
dc.date.accessioned2024-01-10T12:04:14Z
dc.date.available2024-01-10T12:04:14Z
dc.date.issued2009
dc.description.abstractIn food fermentation, many types of immobilization systems are used, such as hydrogel entrapment, where alginate is the main biopolymer. one of the important problems in industrial processes is the quantifications of biomass, since the traditional system of direct cell counting cannot be used. In this study, a simple digital imaging method to determine the biomass of yeasts immobilized into alginate capsules was developed. Important evidence of the yeasts growing inside the alginate was the change in the surface color of the capsule. Digital images were taken with different biomass concentration, and the RGB-analysis showed significant differences in the blue field. The histogram of the blue channel was used to develop a PLS multivariate calibration to predict biomass concentration. The method was validated in primary beer fermentation with good efficiency. (C) 2009 Elsevier Ltd. All rights reserved.
dc.description.funderCONICYT
dc.fechaingreso.objetodigital01-04-2024
dc.format.extent6 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.lwt.2009.03.013
dc.identifier.eissn1096-1127
dc.identifier.issn0023-6438
dc.identifier.urihttps://doi.org/10.1016/j.lwt.2009.03.013
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/75734
dc.identifier.wosidWOS:000266964000019
dc.information.autorucIngeniería;Pedreschi F;S/I;18770
dc.issue.numero8
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final1449
dc.pagina.inicio1444
dc.publisherELSEVIER
dc.revistaLWT-FOOD SCIENCE AND TECHNOLOGY
dc.rightsacceso restringido
dc.subjectImmobilization
dc.subjectAlginate
dc.subjectRGB
dc.subjectDigital images
dc.subjectImage analysis
dc.subjectYeast
dc.subjectMultivariate calibration
dc.subjectPRIMARY BEER FERMENTATION
dc.subjectDARK-FIELD MICROSCOPY
dc.subjectCELLS
dc.subjectCOLOR
dc.subject.ods02 Zero Hunger
dc.subject.odspa02 Hambre cero
dc.titleA non-destructive digital imaging method to predict immobilized yeast-biomass
dc.typeartículo
dc.volumen42
sipa.codpersvinculados18770
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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