Evaluación aeromicrobiológica del depósito del Centro de Documentación del Museo Nacional de la Música de Cuba

García, Julio César Rodríguez

doi:10.37558/gec.v9i0.289

Cited by 6 publications

(10 citation statements)

References 9 publications

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“…Although the fungal concentrations detected in the re-positories air did not exceed 500 CFU/m 3 , they considered intermediate [48] or moderate [49] , R-1 being the most contaminated repository during the three years studied. However, the concentrations obtained in this research were similar to those reported in previous studies performed in archives and libraries in other countries [41,47,50] and in Cuba both in naturally ventilated and air-conditioned environments [12,[51][52][53] . Likewise, these concentrations turned out to be low in relation to others obtained in foreign archives [48,54,55] .…”

Section: Discussionsupporting

confidence: 89%

Pollution of Airborne Fungi in Naturally Ventilated Repositories of the Provincial Historical Archive of Santiago de Cuba (Cuba)

Borrego¹,

Molina²,

Bonne³

et al. 2022

j. of atmos. sci. res.

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Environmental fungi can damage the documentary heritage conserved in archives and affect the personnel’s health if their concentrations, thermohygrometric parameters and ventilation conditions are not adequate, problems that can be accentuated by Climate Change. The aims of this work were to identify and to characterize the airborne fungal pollution of naturally ventilated repositories in the Provincial Historical Archive of Santiago de Cuba and predict the risk that these fungi pose to the staff’s health. Indoor air of three repositories of this archive and the outdoor air were sampled in an occasion every time in 2015, 2016 and 2017 using a SAS sampler. The obtained fungal concentrations varied from 135.6 CFU/m3 to 421.1 CFU/m3 and the indoor/outdoor ratios fluctuated from 0.7 to 4.2, evidencing a variable environmental quality over time, but in the third sampling the repositories environments showed good quality. Aspergillus and Cladosporium were the predominant genera in these environments. A. flavus was a prevailed species in indoor air, while A. niger and Cl. cladosporioides were the species that showed the greatest similarities with the outdoor air. Coremiella and Talaromyces genera as well as the species Aspergillus uvarum, Alternaria ricini and Cladosporium staurophorum were the first findings for environments of Cuban archives. Xerophilic species (A. flavus, A. niger, A. ochraceus, A. ustus) indicators of moisture problems in the repositories were detected; they are also opportunistic pathogens and toxigenic species but their concentrations were higher than the recommended, demonstrating the potential risk to which the archive personnel is exposed in a circumstantial way.

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Section: Discussionsupporting

confidence: 89%

Pollution of Airborne Fungi in Naturally Ventilated Repositories of the Provincial Historical Archive of Santiago de Cuba (Cuba)

Borrego¹,

Molina²,

Bonne³

et al. 2022

j. of atmos. sci. res.

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“…These genera coincide with those reported previously in environmental studies in Havana [15,[43][44][45] , also they prevailed in the supermarket Chong Chom in Thailand [46] , in the room of the Terracotta Warriors in Mausoleum of the First Emperor Qin in China [47] , in other archives, libraries and museums [48,49] as well as in the halls of Yale University (New Haven, Connecticut) where RF of occurrence of the genera Cladosporium, Penicillium and Aspergillus were 62, 40 and 26%, respectively [16] . These are considered normal contaminants of indoor environments and potentially allergenic, consistent with that reported previously [16] .…”

Section: Resultssupporting

confidence: 91%

Influence of the 60 Hz Magnetic Field on the Airborne Microbial Distribution of Indoor Environments

Anaya¹,

Borrego²,

Castro

et al. 2020

j. of atmos. sci. res.

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The aim of this work was to analyze the effect of the magnetic field generated by the household appliances on the airborne microbial surrounding these equipment located on indoor environments with particular interest in the environmental fungi. A simultaneous environmental study was carried out in locals of three different geographical places of Havana, Cuba, which have televisions, computers and an electric generator. The air samples were made by a sedimentation method using Malt Extract Agar. The concentration of total aerobic mesophilic as well as fungi and yeasts were determined in rainy and little rainy seasons by applying as factors: exposure time of dishes (5 to 60 min) and distance to the wall (0 and 1 m) at a height of 1 m above the floor. The predominant fungal genera were Cladosporium, Penicillium and Aspergillus. In the dishes that were placed at 0 and 0.5 m from the emitting sources were observed that some bacteria colonies formed inhibition halos, a great diversity of filamentous fungi and an increase in the mycelium pigmentation as well as the pigments excretion. In the rainy season, the highest amounts of fungi were obtained in all samples. In the little rain season the count of the Gram-negative bacilli increased three times the Gram-positive cocci.

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“…Los representantes de Aspergillus spp. en los tres depósitos constituyeron una parte considerable de la micobiota aérea viable si se tienen en cuenta que las DR fueron superiores al 18%, que en todos los locales se detectaron al menos 6 géneros fúngicos y que en términos de concentración, se ubicó siempre entre los tres géneros más representados con un máximo de 45 UFC -3 en MNBA Aspergillus en todos los casos, cuestión que está relacionada con la influencia de dicho factor en la presencia y viabilidad de sus propágulos (Rodríguez et al, 2014). En tanto la T y las concentraciones de propágulos mostraron una correlación baja negativa (R = -0,4878 para P ≤ 0.05) (figura 1B, C y D).…”

Section: Análisis Ecológicounclassified

“…En tanto la T y las concentraciones de propágulos mostraron una correlación baja negativa (R = -0,4878 para P ≤ 0.05) (figura 1B, C y D). La T suele ser influyente en la dinámica de la micobiota en el aire interior, sin embargo al parecer ejerce un efecto secundario al actuar sobre otros factores como la HR y las corrientes de aire (Rodríguez et al, 2014). Por otra parte, se ha reportado la prevalencia de especies de Aspergillus en ambientes interiores con alto nivel de empolvamiento y falta de ventilación, elementos que propician la existencia de reservorios esporales (Molina…”

Section: Análisis Ecológicounclassified

“…Varios grupos y especies del género se han señalado como importantes agentes biodeteriorantes de la madera, los textiles, el papel e incluso polímeros sintéticos y materiales pétreos siendo la causa de serios daños a objetos de valor constructivo, cultural y patrimonial. (Ljaljević y Vukojević, 2009;Borrego et al, 2010;Bučková, et al, 2014;Rodríguez et al, 2014). En interiores las fuentes de esporas u otros propágulos de Aspergillus spp.…”

Section: Introductionunclassified

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AEROBIOLOGÍA Y BIODETERIORO DEL GÉNERO Aspergillus Link EN DEPÓSITOS DE TRES INSTITUCIONES PATRIMONIALES CUBANAS

Veloso¹,

A²

2016

Bol. Micol.

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Bol. Micol. 2016; 31(1): 2 -18 micologia.uv.cl las Secciones Flavi, Nigri y la especie Aspergillus fumigatus Fresen. ABSTRACT Species of the genus Aspergillus Link cause damage to objects constructive, cultural and heritage value. In work environments, their propagules and metabolites may cause disorders to human health. Aerobiological studies can help minimize the impact of Aspergillus spp. in the biodeterioration and quality of life. Aspergillus spp. strains present in the air of the repositories in three Cuban heritage institutions were characterized according to their biodeteriogenic and pathogenic potential. Each isolated was classified taxonomically, cellulolytic, amylolytic and proteolytic activity as well as excretion of pigments and organic acids was evaluated. The capacity to grow at 37°C and secrete hemolysins was qualitatively evaluated. Aspergillus spp. was significant portion of viable air micobiota in the three repositories with 22 species corresponding to 12 sections, most variability were Flavi and Restricti, while the first section and Aspergillus were the best represented. The 74% of the strains showed high ability to degrade organic compounds evaluated and secrete acids, while 34% excreted pigments from yellow to dark brown, evidenced a broad biodeteriogenic potential in general. More than 30% of the isolates were shown to be dangerous opportunistic pathogens for humans to grow at 37°C, secrete hemolysin, and present a conidial size which enables the deposition pulmonary alveoli. Strains higher biodeteriogenic and pathogenic impact were those corresponding to the Flavi, Nigri sections and the species Aspergillus fumigatus Fresen. micologia.uv.cl

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Evaluación aeromicrobiológica del depósito del Centro de Documentación del Museo Nacional de la Música de Cuba

Cited by 6 publications

References 9 publications

Pollution of Airborne Fungi in Naturally Ventilated Repositories of the Provincial Historical Archive of Santiago de Cuba (Cuba)

Pollution of Airborne Fungi in Naturally Ventilated Repositories of the Provincial Historical Archive of Santiago de Cuba (Cuba)

Influence of the 60 Hz Magnetic Field on the Airborne Microbial Distribution of Indoor Environments

AEROBIOLOGÍA Y BIODETERIORO DEL GÉNERO Aspergillus Link EN DEPÓSITOS DE TRES INSTITUCIONES PATRIMONIALES CUBANAS

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