INIFTA   05425
INSTITUTO DE INVESTIGACIONES FISICO-QUIMICAS TEORICAS Y APLICADAS
Unidad Ejecutora - UE
artículos
Título:
Scopulariopsis sp. and Fusarium sp. in the Documentary Heritage:
Autor/es:
LAVIN PAOLA; GÓMEZ DE SARAVIA SANDRA GABRIELA; GUIAMET PATRICIA S.
Revista:
MICROBIAL ECOLOGY
Editorial:
SPRINGER
Referencias:
Lugar: Berlin; Año: 2016 vol. 71 p. 628 - 633
ISSN:
0095-3628
Resumen:
Abstract Fungiproduce pigments and acids, generating particular local conditions which modifythe physico-chemical properties of the materials. The aims of this work are: i)to investigate bioadhesion, foxing production and biofilm formation by Scopulariopsis sp. and Fusarium sp. isolated from document collectionsunder laboratory conditions; ii) to verify attack on cellulose fibers; iii) to study the possibility of reducingfungal growth using natural products. Biofilmformation and extracellular polymeric substances (EPS) production by fungiwere demonstrated in laboratory assays and by scanning electron microscopy (SEM)observations. The biocidal activity of two essential oils of Origanum vulgare L. and Thymus vulgaris L. was evaluated using the microatmosphere method.SEM observations showed that these strains were able to attach to paper andform biofilms causing damage on them, which demonstrates the biodeteriorationability of these microorganisms. Scopulariopsis sp. and Fusarium sp. isolated from paper books showed the formation of fox-like reddish-brown colour spots, attack to paper structure andpigment production on aged paper samples. The strains tested produced adecrease in the pH of one unit. This would substantiate the effect of thestrains in paper biodeterioration. Themicroatmosphere method showed that volatile compounds of theessential oils have antifungal activity.