Biophenols and flavor in extra virgin olive oils from San Juan province (Argentina)
| Autor: | Daniela F. Mussio, Daniela Ramírez, Liliana N. Ceci, Amalia A. Carelli, Susana B. Mattar |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
030109 nutrition & dietetics Otras Ingenierías y Tecnologías General Chemical Engineering PUNGENCY Organic Chemistry 04 agricultural and veterinary sciences OLIVE OIL INGENIERÍAS Y TECNOLOGÍAS 040401 food science Alimentos y Bebidas 03 medical and health sciences 0404 agricultural biotechnology Geography Botany BITTERNESS SECOIRIDOIDS Humanities BIOPHENOLS Flavor |
| Popis: | In this work, phenolic compounds and their relationship with flavor in Arbequina, Changlot Real and Coratina cultivars extra virgin olive oils from the San Juan province (Argentina) in the 2012 and 2013 harvests were studied. In 2013, the harvesting was brought forward by 15-17 days. The total and individual biophenols were analyzed by HPLC-UV. A taste panel recognized by the International Olive Council (IOC) carried out the sensory analysis. Oxidative stability was measured by accelerated oxidation assays using Rancimat equipment. The oils obtained in 2013 from the three cultivars had higher biophenol contents and particularly higher contents of secoiridoid and derivatives. The positive attributes (fruitiness, bitterness and pungency) of the oils were more harmonious in the three cultivars in 2013 by enhancing the complexity with a wide range of green descriptors. The oxidative stability indices of the oils were also higher in the three cultivars in 2013. The multiple linear regression model suggested that oleuropein aglycone, aldehyde and hydroxilic form (3,4-DHPEA-EA) was the main contributor (65.5 %) to bitterness, while decarboxymethyl ligstroside aglycone, dialdehyde form (p-HPEA-EDA), besides reducing bitterness, was the major contributor to pungency (52.2 %). Among simple phenols, o-coumaric acid contributed to bitterness (2.3 %), and tyrosol (6.3 %) and tyrosyl acetate (3.3 %) were related to pungency. 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: Ramirez, Daniela Andrea. Universidad Catolica de Cuyo - Sede San Juan; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Mussio, Daniela Fernanda. 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 Catolica 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 |
| Databáze: | OpenAIRE |
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