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https://riquim.fq.edu.uy/files/original/a391f749afd6831b6da590355ee29443.pdf
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Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
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Bibliografía Nacional Química
Description
An account of the resource
Contiene la producción científica nacional de los profesionales químicos e investigadores, durante el período 1929 hasta la fecha.
Contributor
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Departamento de Documentación y Biblioteca
RIQUIM
Document
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Original Format
If the image is of an object, state the type of object, such as painting, sculpture, paper, photo, and additional data
PDF
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Title
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<strong>Biocontrol of Aspergillus flavus growth and aflatoxin production by kefir-derived microorganisms under simulated storage conditions</strong>
Subject
The topic of the resource
ASPERGILLUS FLAVUS
AFLATOXINAS
HONGOS
MAIZ
KEFIR
ANTIFUNGICOS
BIBLIOGRAFIA NACIONAL QUIMICA
2025
Abstract
A summary of the resource.
Kefir granules are a complex microbial consortia with numerous properties, among which their antifungal action has been reported. This study characterized the antifungal activity of water kefir granules and two microorganisms isolated from them, identified as Saccharomyces cerevisiae and Geotrichum candidum, against aflatoxigenic Aspergillus flavus. Experiments were carried out in vitro and under minisilo conditions designed to simulate the aerobic phase of commercial corn storage. In dual culture plate assays, A. flavus was inhibited in close contact with both antagonists, and mycelial weakening with lower conidia production was observed. Cell-free supernatants of both antagonists inhibited conidial germination by 92% (G. candidum) and 65% (S. cerevisiae). Non-contact assays between A. flavus and antagonists indicated that volatile organic compounds (VOCs) also contributed to inhibition, reducing mycelial growth by 29.1% (G. candidum) and 37.9% (S. cerevisiae). In corn minisilo trials water kefir granules and both antagonists showed strong antifungal activity by day 4, with qPCR of A. flavus DNA and aflatoxin measurements indicating near complete inhibition. As mixed consortia, water-kefir granules inherently include lactic acid bacteria whose rapid acidification and diffusible metabolites complement antifungal compounds produced by other components of the consortia, supporting a multi-mechanistic mode of action. Given the compositional heterogeneity of kefir granules, strain-level identification and verification of safety and regulatory status for the intended use are essential prior to food or feed applications. The demonstrated antifungal efficacy of kefirderived microorganisms in mini-silos underscores their scale-up potential for postharvest protection of corn.
Creator
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<strong>Alconada, Teresa</strong>
<strong>Moure, Candela</strong>
<a href="https://export.cvuy.uy/cv/?2fba6b85918c3a72e283c9e384fe34daad45ce5340091e90920688be867f6a24200f4fe9f0525ebf811b8eb77fd79b5d29094f6649534b571246c9a87ca9e9ca#6"><strong>Gonda, Mariana</strong></a>
<strong> Cristos, Diego</strong>
<a href="https://export.cvuy.uy/cv/?513cd40ab0f7a3ae4d114f4a4e9dc877c410ad8f0bff71b7001257cfe95eca4576e784b3d7ba4a4ef9b56967d3205b0cb2adc6266bf6792221c2f2f8b5f7200e#6"><strong>Ramírez Albuquerque, Diana</strong></a>
<strong>León Pelaez, Ángela</strong>
<strong>Fernández Pinto, Virginia</strong>
<strong>Vero, Silvana</strong>
Source
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World Journal of Microbiology and Biotechnology, v. 41, n°11, 2025. -- e426
Publisher
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Springer
Date
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2025
Rights
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<p><strong>Información sobre Derechos de Autor</strong></p>
<p>(Por favor lea este aviso antes de abrir los documentos u objetos)</p>
<p><strong>La legislación uruguaya protege el derecho</strong> de autor sobre toda creación literaria, científica o artística, tanto en lo que tiene que ver con sus derechos morales, como en lo referente a los derechos patrimoniales con sujeción a lo establecido por el derecho común y las siguientes leyes (LEY 9.739 DE 17 DE DICIEMBRE DE 1937 SOBRE PROPIEDAD LITERARIA Y ARTISTICA CON LAS MODIFICACIONES INTRODUCIDAS POR LA LEY DE DERECHO DE AUTOR Y DERECHOS CONEXOS No. 17.616 DE 10 DE ENERO DE 2003, LEY 17.805 DE 26 DE AGOSTO DE 2004, LEY 18.046 DE 24 DE OCTUBRE DE 2006 LEY 18.046 DE 24 DE OCTUBRE DE 2006)</p>
<p><strong>ADVERTENCIA -</strong> La consulta de este documento queda condicionada a la aceptación de las siguientes condiciones de uso: Este documento es únicamente para usos privados enmarcados en actividades de investigación y docencia. No se autoriza su reproducción con fines de lucro. Esta reserva de derechos afecta tanto los datos del documento como a sus contenidos. En la utilización o cita de partes debe indicarse el nombre de la persona autora</p>
Format
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PDF
Extent
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12 p.
Language
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Inglés
Type
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Artículo
Identifier
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10.1007/s11274-025-04611-4
Aflatoxinas
Antifúngicos
Aspergillus Flavus
Hongos
Kéfir
Maiz
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https://riquim.fq.edu.uy/files/original/43438feb36329e29c77043fb2a548185.pdf
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Omeka Image File
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Width
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Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Bibliografía Nacional Química
Description
An account of the resource
Contiene la producción científica nacional de los profesionales químicos e investigadores, durante el período 1929 hasta la fecha.
Contributor
An entity responsible for making contributions to the resource
Departamento de Documentación y Biblioteca
RIQUIM
Document
A resource containing textual data. Note that facsimiles or images of texts are still of the genre text.
Original Format
If the image is of an object, state the type of object, such as painting, sculpture, paper, photo, and additional data
PDF
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
<strong>Biocontrol of Aspergillus flavus in Ensiled Sorghum by Water Kefir Microorganisms</strong>
Subject
The topic of the resource
SORGO
MICROORGANISMOS
KEFIR DE AGUA
ASPERGILLUS FLAVUS
BIBLIOGRAFIA NACIONAL QUIMICA
2019
Abstract
A summary of the resource.
The capacity of microorganisms from water kefir (WK) to control Aspergillus flavus growth during the aerobic phase of ensiled sorghum grains was determined. Sorghum inoculated with A. flavus was treated with filter-sterilized and non-sterilized water kefir, ensiled, and incubated 7 days at 25 °C. A. flavus growth was quantified by qPCR after incubation. Mold growth was inhibited in the presence of water kefir while no inhibition was observed when filter-sterilized water kefir was applied, demonstrating the relevant role of the microorganisms in the kefir water in the biocontrol process. Fungal and bacterial diversity in treated sorghum mini-silos was analyzed by high-throughput sequencing. Firmicutes was the predominant bacterial phyla and Lactobacillus represented the most abundant genus, while Ascomycota was the predominant fungal phyla with Saccharomyces and Pichia as the major genera. Bacterial and yeast counts before and after incubation indicated that the microbial community obtained from WK was able to grow in the sorghum mini-silos in the presence of A. flavus. Results of the present work indicate that the use of a mixed inoculum of microorganisms present in WK may represent an alternative management practice to avoid the growth of A. flavus in ensiled sorghum grains and the concomitant contamination with aflatoxins.
Creator
An entity primarily responsible for making the resource
<strong>Gonda, Mariana.</strong>
<strong>Garmendia, Gabriela.</strong>
<strong>Rufo, Caterina</strong>
<strong>León Peláez, Angela</strong>
<strong>Wisniewski, Michael</strong>
<strong>Droby, Samir</strong>
<a title="Curriculum Vitae" href="https://exportcvuy.anii.org.uy/CvEstatico/?urlId=513cd40ab0f7a3ae4d114f4a4e9dc877c410ad8f0bff71b7001257cfe95eca4576e784b3d7ba4a4ef9b56967d3205b0cb2adc6266bf6792221c2f2f8b5f7200e&formato=pdf&convocatoria=21" target="_self"><strong>Vero, Silvana.</strong></a>
Source
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Microorganisms v. 7, no. 8, 2019. -- p. 1-18.--e253
Publisher
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MDPI
Date
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2019
Rights
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<p><strong>Información sobre Derechos de Autor</strong></p>
<p>(Por favor lea este aviso antes de abrir los documentos u objetos)</p>
<p><strong> La legislación uruguaya</strong> protege el derecho de autor sobre toda creación literaria, científica o artística, tanto en lo que tiene que ver con sus derechos morales, como en lo referente a los derechos patrimoniales con sujeción a lo establecido por el derecho común y las siguientes leyes (LEY 9.739 DE 17 DE DICIEMBRE DE 1937 SOBRE PROPIEDAD LITERARIA Y ARTISTICA CON LAS MODIFICACIONES INTRODUCIDAS POR LA LEY DE DERECHO DE AUTOR Y DERECHOS CONEXOS No. 17.616 DE 10 DE ENERO DE 2003, LEY 17.805 DE 26 DE AGOSTO DE 2004, LEY 18.046 DE 24 DE OCTUBRE DE 2006 LEY 18.046 DE 24 DE OCTUBRE DE 2006)</p>
<p><strong> ADVERTENCIA -</strong> La consulta de este documento queda condicionada a la aceptación de las siguientes condiciones de uso: Este documento es únicamente para usos privados enmarcados en actividades de investigación y docencia. No se autoriza su reproducción con fines de lucro. Esta reserva de derechos afecta tanto los datos del documento como a sus contenidos. En la utilización o cita de partes debe indicarse el nombre de la persona autora.</p>
Format
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PDF
Language
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Inglés
Type
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Artículo
Identifier
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DOI: 10.3390/microorganisms7080253
Aspergillus Flavus
Kefier de Agua
Microorganismos
Sorgo