A chemiluminescence study on degradation of gelatine biodegradation by bacteria and fungi isolated from cinematographic films

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dc.contributor.authorAbrusci, Concepción
dc.contributor.authorMarquina Díaz, Domingo
dc.contributor.authorSantos de la Sen, Antonio
dc.contributor.authorDel Amo, Alfonso
dc.contributor.authorCorrales, Teresa
dc.contributor.authorCatalina, Fernando
dc.date.accessioned2024-07-19T07:50:27Z
dc.date.available2024-07-19T07:50:27Z
dc.date.issued2006-07-14
dc.description.abstractChemiluminescence (CL) has become a sensitive tool for the study of polymer degradation, induced by exposure to various factors, such us heat, UV-light and oxygen. In this paper, the results obtained with this technique in the study of gelatine samples hydrolytically degraded under sterilisation conditions are presented. Also, photographic gelatine exposed to bacterial and fungal degradations, in water solution and under controlled conditions, have been study by the chemiluminescence emission of their corresponding films and the biodegradation extent was determined by viscosity. The bacteria and fungi employed in this work have been isolated from cinematographic films in a previous work. The high intensities of chemiluminescence emission obtained for gelatines biodegraded by bacteria and fungi, in aqueous solution at 37 and 25 °C, respectively, are different to those obtained in the thermal degradation. The hydrolytic degradation mechanism is through a cleavage of the peptide bond of the protein without significant oxidation of the material. In contrast, biodegradation by bacteria and fungi at low temperatures decreases the molecular weight of the gelatine (viscosity) by the enzymatic activity but, also, produces an important oxidation in the material due to the reactive oxygen species (ROS) generated in the microbial metabolism.
dc.description.departmentDepto. de Genética, Fisiología y Microbiología
dc.description.facultyFac. de Ciencias Biológicas
dc.description.refereedTRUE
dc.description.statuspub
dc.identifier.citationAbrusci, C., et al. «A Chemiluminescence Study on Degradation of Gelatine». Journal of Photochemistry and Photobiology A: Chemistry, vol. 185, n.o 2-3, enero de 2007, pp. 188-97. DOI.org (Crossref), https://doi.org/10.1016/j.jphotochem.2006.06.003.
dc.identifier.doi10.1016/j.jphotochem.2006.06.003
dc.identifier.essn1873-2666
dc.identifier.issn1010-6030
dc.identifier.officialurlhttps://doi.org/10.1016/j.jphotochem.2006.06.003
dc.identifier.relatedurlhttps://www.sciencedirect.com/science/article/pii/S1010603006003194
dc.identifier.urihttps://hdl.handle.net/20.500.14352/106874
dc.issue.number2-3
dc.journal.titleJournal of Photochemistry and Photobiology A: Chemistry
dc.language.isoeng
dc.page.final197
dc.page.initial188
dc.publisherElsevier
dc.rights.accessRightsrestricted access
dc.subject.cdu579.26
dc.subject.cdu544.52
dc.subject.keywordChemiluminescence
dc.subject.keywordPhotographic gelatine
dc.subject.keywordBiodegradation
dc.subject.keywordHydrolytic degradation
dc.subject.keywordSterilisation
dc.subject.keywordBacteria
dc.subject.keywordFungi
dc.subject.ucmMicrobiología (Biología)
dc.subject.ucmBiotecnología
dc.subject.unesco2302.20 Química Microbiológica
dc.subject.unesco2210.22 Fotoquímica
dc.titleA chemiluminescence study on degradation of gelatine biodegradation by bacteria and fungi isolated from cinematographic films
dc.typejournal article
dc.type.hasVersionVoR
dc.volume.number185
dspace.entity.typePublication
relation.isAuthorOfPublicationd779dc78-9841-41f1-9ea5-f5c397c918c0
relation.isAuthorOfPublication2388c3c0-431f-4f3f-9652-b266505fb66d
relation.isAuthorOfPublication.latestForDiscoveryd779dc78-9841-41f1-9ea5-f5c397c918c0
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