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dc.contributor.author
Oviedo, Maria Silvina
dc.contributor.author
Ramirez, Maria Laura
dc.contributor.author
Barros, Germán Gustavo
dc.contributor.author
Chulze, Sofia Noemi
dc.date.available
2023-03-07T15:36:34Z
dc.date.issued
2010-12
dc.identifier.citation
Oviedo, Maria Silvina; Ramirez, Maria Laura; Barros, Germán Gustavo; Chulze, Sofia Noemi; Impact of water activity and temperature on growth and alternariol and alternariol monomethyl ether production of Alternaria alternata isolated from soybean; International Association for Food Protection; Journal of Food Protection; 73; 2; 12-2010; 336-343
dc.identifier.issn
0362-028X
dc.identifier.uri
http://hdl.handle.net/11336/189902
dc.description.abstract
The objective of this study was to determine the effect of water activity (aw; 0.995, 0.98, 0.96, 0.94, 0.92, and 0.90), temperature (5, 18, 25, and 30°C), incubation time (7 to 35 days), and their interactions on mycelial growth and alternariol (AOH) and alternariol monomethyl ether (AME) production. Two Alternaria alternata strains isolated from soybeans in Argentina were grown on 2% soybean extract agar. Maximum growth rates were obtained at the highest aw (0.995) and 25°C, with growth decreasing as the water availability of the medium was reduced. Maximum amount of AOH was produced at 0.98 aw and 25°C for both strains. Maximum AME production was obtained for both strains at 30°C but different aw values, 0.92 and 0.94, for the strains RC 21 and RC 39, respectively. The concentrations of both toxins varied considerably depending on the aw and temperature interactions assayed. The two metabolites were produced from 5 to 30°:C and at a w values of 0.92 to 0.995. Although at 5 and 18°C little mycotoxin was produced at aw lower than 0.94. Two-dimensional profiles of aw by temperature interactions were developed from these data to identify areas where conditions indicate a significant risk from AOH and AME accumulation on soybeans. All the conditions of aw and temperature that resulted in maximum production of both toxins are those found during soybean development in the field. Thus, field conditions are likely to be conducive to optimum A. alternara growth and toxin production.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
International Association for Food Protection
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ALTERNARIA
dc.subject
MYCOTOXIN
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WATER ACTIVITY
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SOYBEAN
dc.subject.classification
Otras Ciencias Agrícolas
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Otras Ciencias Agrícolas
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CIENCIAS AGRÍCOLAS
dc.title
Impact of water activity and temperature on growth and alternariol and alternariol monomethyl ether production of Alternaria alternata isolated from soybean
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-02-27T16:35:01Z
dc.journal.volume
73
dc.journal.number
2
dc.journal.pagination
336-343
dc.journal.pais
Estados Unidos
dc.description.fil
Fil: Oviedo, Maria Silvina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Fisicoquímicas y Naturales. Departamento de Microbiología e Inmunología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Ramirez, Maria Laura. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Fisicoquímicas y Naturales. Departamento de Microbiología e Inmunología; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Instituto de Investigación en Micología y Micotoxicología. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigación en Micología y Micotoxicología; Argentina
dc.description.fil
Fil: Barros, Germán Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Fisicoquímicas y Naturales. Departamento de Microbiología e Inmunología; Argentina
dc.description.fil
Fil: Chulze, Sofia Noemi. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Instituto de Investigación en Micología y Micotoxicología. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigación en Micología y Micotoxicología; Argentina
dc.journal.title
Journal of Food Protection
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0362028X22121332
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.4315/0362-028X-73.2.336
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