Evaluation of the antimicrobial effectiveness of 222 nm UV-C light as a treatment strategy for the preservation of biological specimens in liquid from the “José Ricardo Cure Hakim” Collection at Universidad Militar Nueva Granada

Keywords: Biological collections, biodeterioration, microorganisms, Bacillus, Paenibacillus

Abstract

Biological collections are records of biodiversity. However, biodeterioration threatens their conservation, making evaluating treatments that mitigate the associated damage crucial. This article assessed the antimicrobial effectiveness of 222nm UV light against microorganisms on the skin of vertebrate specimens preserved in liquid from the "Jose Ricardo Cure Hakim" collection at Universidad Militar Nueva Granada, Cajicá, Colombia. Microorganisms were obtained by swabbing, isolated, and identified molecularly and morphologically. In vitro, antimicrobial activity was evaluated with microorganisms on glass beads at four time points. After irradiation, percentage inhibition was calculated. The effect on specimens was analyzed by swabbing. Bacillus and Paenibacillus genera were identified. 222nm UV light showed an inhibitory effect on bacterial growth in vitro and on specimens. The findings suggest new strategies to mitigate biodeterioration in liquid biological collections.

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Author Biographies

Maria Alejandra Gonzalez Torres, Estudiante de Facultad de Ciencias Básicas y Aplicadas Universidad Militar Nueva Granada Cajicá, Colombia

Bióloga de la Universidad Militar Nueva Granada, con experiencia en microbiología, conservación de colecciones científicas y análisis estadístico de datos biológicos. Ha participado en investigaciones sobre el uso de luz ultravioleta para la desinfección de especímenes biológicos, así como en el estudio de pigmentos bacterianos con propiedades antimicrobianas. Interesada en la aplicación de herramientas microbiológicas para la conservación del patrimonio biológico. Se distingue por su responsabilidad, pensamiento crítico y capacidad para trabajar en equipo.

Nelsy Rocio Pinto Sanchez, Facultad de Ciencias Básicas y Aplicadas Universidad Militar Nueva Granada Cajicá, Colombia

Bióloga, docente con especial interés en procesos de diversificación en la región Neotropical. Curadora de la colección zoológica “José Ricardo Cure Hakim” de la Universidad Militar Nueva Granada, Cajicá, Colombia. Interesada en el mantenimiento de las colecciones zoológicas.

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Published
2025-10-27
How to Cite
Gonzalez Torres, M. A., & Pinto Sanchez, N. R. (2025). Evaluation of the antimicrobial effectiveness of 222 nm UV-C light as a treatment strategy for the preservation of biological specimens in liquid from the “José Ricardo Cure Hakim” Collection at Universidad Militar Nueva Granada. Ge-Conservacion, 28(1), 121-131. https://doi.org/10.37558/gec.v28i1.1404