2004
DOI: 10.22490/24629448.7
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Actividades hidrolíticas y caracterización isoenzimática de poblaciones microbianas aisladas del patrimonio documental del Archivo General de Colombia

Abstract: ResumenEste trabajo presenta un modelo para el aislamiento y evaluación de microorganismos agentes deteriorantes del acervo documental. Se recuperaron e identificaron 28 aislamientos tanto de las unidades de conservación con biodeterioro como de la atmósfera del depósito 15 del Archivo General de la Nación de Colombia (AGN). De este grupo, 16 aislamientos microbianos mostraron capacidad hidrolítica sobre fibras vegetales cuando se cultivaron en medios con paredes celulares al 1% como única fuente de carbono. A… Show more

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Cited by 18 publications
(17 citation statements)
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“…Fungi can colonise almost everything, given favourable conditions of growth, and their spores can remain viable for hundreds of years. Evaluation of the strains isolated here from various substrates confirmed the considerable enzyme potential of Aspergillus, Penicillium and Cladosporium, as also reported by Villalba et al, 2004. Most of the strains tested displayed capacity for cellulase production, which was most remarkably in Aspergillus species particularly in those isolated from paper and textiles, including A.…”
Section: Discussionsupporting
confidence: 84%
“…Fungi can colonise almost everything, given favourable conditions of growth, and their spores can remain viable for hundreds of years. Evaluation of the strains isolated here from various substrates confirmed the considerable enzyme potential of Aspergillus, Penicillium and Cladosporium, as also reported by Villalba et al, 2004. Most of the strains tested displayed capacity for cellulase production, which was most remarkably in Aspergillus species particularly in those isolated from paper and textiles, including A.…”
Section: Discussionsupporting
confidence: 84%
“…Optimal growth and salt stress tolerance of EN21 were tested in Tryptic Soy Broth (TSB) medium supplemented with 0-25% (w/v) NaCl. Other phenotypic characteristic were evaluated-acid and alkaline phosphatase [31,32]; hydrolysis of starch and casein [33], cellulose [34], chitin [35], DNA [36], Tween ® 20, Tween ® 80 and gelatin [33] and siderophore production [37]. EN21 toxicity was assessed using the Microtox ® rapid test system (Environmental Bio-Detection Products Inc., Mississauga, ON, Canada) [38].…”
Section: Characterization Of Strain En21mentioning
confidence: 99%
“…Esto pudiera indicar que ambas especies son típicas de este tipo de ambiente. Pueden jugar un papel importante en el biodeterioro de los soportes documentales, P. chrysogenum por su alto potencial para deteriorar materiales de origen celulósico (Villalba et al, 2004) y P. citrinum por su gran capacidad de producir pigmentos (Pitt, 2000). Por otra parte algunas cepas en ambos casos se han reportado como causantes de keratitis, endocarditis y en el caso de la segunda especie, además puede ocasionar infecciones del tracto urinario (De Hoog et al;2000).…”
Section: Identificación Específica De Los Hongos Aislados Del Aireunclassified