Chemical quality and oxidative stability of extra virgin olive oils from San Juan province (Argentina)

Authors
Ceci, Liliana Noemí; Mattar, Susana B; Carelli Albarracin, Amalia Antonia
Publication Year
2017
Language
English
Format
article
Status
Published version
Description
This study provides information about the chemical quality (quality indices, fatty acid profile, total polyphenols(PPs), tocopherols and pigments) and oxidative stability index (OSI) of virgin olive oils of Arbequina, ChanglotReal and Coratina cultivars (San Juan province, Argentina). The influence of the cultivar and the effect of earlier harvest dates on the yields (OY), quality and OSI of the oils were also evaluated. All the oils were classified as extra virgin. The OY (L/100 kg) averaged: Arbequina = 13.2, Changlot Real = 21.3, Coratina = 18.3. The oleic acid (O) percentage, oleic to linoleic plus linolenic ratio [O / (L + Ln)], PPs and OSI were highly dependent on cultivar (Arbequina < Changlot Real < Coratina). The earlier harvest season associated with lower maturity indices increased the OSI of all the oils (Arbequina: from 6.3?13.8 h up to 10.6?19.0 h, Changlot: from 6.0-12.1 h up to 13.7-36.9 h and Coratina: from 20.5?26.0 h up to 24.6?42.4 h) due to a more favorable O / (L + Ln) ratioand antioxidant composition. Regional producers are recommended to bring forward the harvest season to obtain oils with better chemical and nutritional quality, higher oxidative stability and a fatty acid profile according to the IOC trade standard.
Fil: Ceci, Liliana Noemí. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina
Fil: Mattar, Susana B. Universidad Católica de Cuyo - Sede San Juan; Argentina
Fil: Carelli Albarracin, Amalia Antonia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina
Subject
OLIVE OIL
OXIDATIVE STABILITY
FATTY ACIDS
POLYPHENOLS
TOCOPHEROLS
PIGMENTS
Alimentos y Bebidas
Otras Ingenierías y Tecnologías
INGENIERÍAS Y TECNOLOGÍAS
Access level
Restricted access
License
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repository
CONICET Digital (CONICET)
Institution
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identifier
oai:ri.conicet.gov.ar:11336/42997