Fecha/hora: 11/06/2024 23:29:56

Biblioteca(s): | INIA Las Brujas.
Fecha corriente: | 02/01/2017
Fecha de la última actualización: | 07/02/2017
Autoria: | FERRARI, V.; DELLACASSA, E.; CONIBERTI, A.; DISEGNA, E.
Afiliación: | VIRGINIA PAULINA FERRARI MORENA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; EDUARDO DELLACASSA, Universidad de la República (UdelaR)/ Facultad de Química; ANDRES CONIBERTI MUNDY, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; EDGARDO JOSE DISEGNA LIGUORI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.
Título: | Role of grapevine vegetative expression on Aspergillus spp. incidence and OTA accumulation in wines produced in a temperate humid climate.
Año de publicación: | 2017
Fuente/Imprenta: | Food Additives & Contaminants - Part A Chemistry, Analysis, Control, Exposure and Risk Assessment, 2017, v.34 (2), p.299-306
DOI: | 10.1080/19440049.2016.1252064
Idioma: | Inglés
Notas: | Article History: Received 01 Jul 2016; Accepted 17 Oct 2016; Accepted author version posted online: 24 Oct 2016; Published online: 13 Dec 2016

Contenido:

ABSTRACT.

Aspergillus spp. and Penicillium spp. are the main producers of ochratoxin A (OTA), a mycotoxin responsible for fatal human diseases. Some authorities have established a maximum of 2 &#956;g/L of OTA in wine. Although the incidence and occurrence of OTA in grapes and wine is highly related to climate conditions, as has been extensively documented, there is no conclusive information on the effects of cultivation systems on the presence of OTA. This study focuses on determining the effect of the trellis system, planting density and cordon height on plant microclimate and thus on Aspergillus spp. contamination and OTA production in Tannat wines in Southern Uruguay. Two experiments were conducted during the 2010?2011 growing season: (1) a strip split plot design with five replicates and two cordon heights (CH) (0.5 m and 1.0 m above the soil) were compared in two planting densities (PD) (0.8 and 1.5 m between plants); (2) a randomised complete block design, vertical shoot positioning (VSP) versus Lyra trellis systems were evaluated. The results suggest that, even the macro- and micro-climate growing conditions play an important part in Aspergillus developing on grapes. Agronomical practices also have an undoubted impact on the risk and control of OTA accumulation in wine.

Palabras-Clave: | ASPERGILLUS; MICROCLIMATE; OCHRATOXIN A; PLANTING DENSITY; TRELLIS SYSTEMS.
Thesagro: | VID; VITICULTURA.
Categoría del tema: | --
Registro original: | INIA Las Brujas (LB)
Ejemplares: | LB - (101293-1) - PXI - AP - DD - PP/FOOD ADDITIVES/PART A/2017 -  -  - DIS