resumen
Abstract
Aspergillus section Nigri are described as the main source of ochratoxin A (OTA) contamination in grapes and wine worldwide. The knowledge of the factors affecting grape contamination by species included in this section and OTA production is essential to be able to reduce their presence, not only to improve wine quality, but also to maintain their safety. Therefore, the aims of this study were to determine the incidence of Aspergillus section Nigri
[ver mas...]
dc.contributor.author | Chiotta, María Laura | |
dc.contributor.author | Ponsone, María Lorena | |
dc.contributor.author | Sosa, Débora María | |
dc.contributor.author | Combina, Mariana | |
dc.contributor.author | Chulze, Sofia Noemí | |
dc.coverage.spatial | Argentina | |
dc.date.accessioned | 2017-10-06T12:24:38Z | |
dc.date.available | 2017-10-06T12:24:38Z | |
dc.date.issued | 2013-12 | |
dc.identifier.issn | 0740-0020 | |
dc.identifier.other | https://doi.org/10.1016/j.fm.2013.04.003 | |
dc.identifier.uri | http://hdl.handle.net/20.500.12123/1424 | |
dc.identifier.uri | http://www.sciencedirect.com/science/article/pii/S0740002013000725 | |
dc.description.abstract | Aspergillus section Nigri are described as the main source of ochratoxin A (OTA) contamination in grapes and wine worldwide. The knowledge of the factors affecting grape contamination by species included in this section and OTA production is essential to be able to reduce their presence, not only to improve wine quality, but also to maintain their safety. Therefore, the aims of this study were to determine the incidence of Aspergillus section Nigri species harvested in different grape-growing regions from Argentina, their ability to produce OTA, to correlate with meteorological conditions and geographical coordinates with their prevalence and to evaluate the OTA natural occurrence in grapes and wines. The morphological identification showed that Aspergillus niger aggregate species were the most prevalent ones, followed by Aspergillus carbonarius and Aspergillus uniseriate. These populations were confirmed through using AFLP markers and sequencing and, Aspergillus tubingensis was separated from A. niger aggregate. Climatic factors, altitude, longitude and latitude have influenced on the distribution of species included in the section. A. carbonarius and A. niger were OTA producers but differed in their OTA producing ability. Temperature was the factor which influenced the most over the highest incidence of A. carbonarius in La Rioja and San Juan regions. The trellis system in vineyards and drip irrigation also influenced the species isolation. The OTA levels detected in grapes and wines were low, but grape variety was more important in susceptibility to fungal infection and OTA levels. | eng |
dc.format | application/pdf | eng |
dc.language.iso | eng | |
dc.rights | info:eu-repo/semantics/restrictedAccess | eng |
dc.source | Food microbiology 36 (2) : 182-190. (Dec. 2013) | |
dc.subject | Vid | es_AR |
dc.subject | Grapevines | eng |
dc.subject | Vinos | |
dc.subject | Wines | eng |
dc.subject | Micotoxinas | |
dc.subject | Mycotoxins | eng |
dc.subject | Aspergillus | |
dc.subject | Identificación | |
dc.subject | Identification | eng |
dc.subject | Ocratoxinas | |
dc.subject | Ochratoxins | eng |
dc.subject.other | Argentina | |
dc.subject.other | Ochratoxin A | |
dc.subject.other | Agro-ecological Conditions | eng |
dc.subject.other | Aspergillus Section Nigri | eng |
dc.title | Biodiversity of Aspergillus section Nigri populations in Argentinian vineyards and ochratoxin A contamination | eng |
dc.type | info:ar-repo/semantics/artículo | es_AR |
dc.type | info:eu-repo/semantics/article | eng |
dc.type | info:eu-repo/semantics/publishedVersion | eng |
dc.description.fil | Fil: Chiotta, María Laura. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Físico-Químicas y Naturales. Departamento de Microbiología e Inmunología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina | |
dc.description.fil | Fil: Ponsone, María Lorena. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Mendoza; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina | |
dc.description.fil | Fil: Sosa, Débora María. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Fisicoquímicas y Naturales. Departamento de Biología Molecular. Sección Química Biológica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba; Argentina | |
dc.description.fil | Fil: Combina, Mariana. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Mendoza; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina | |
dc.description.fil | Fil: Chulze, Sofia Noemi. 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.subtype | cientifico |
Files in this item
This item appears in the following Collection(s)
common
-
Artículos científicos [235]