Journal Article10.1021/JF402107T
Summer Deficit-Irrigation Strategies in a Hedgerow Olive cv. Arbequina Orchard: Effect on Oil Quality
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TL;DR: The selection of the moment and intensity of summer irrigation played an important role in the nutritional and sensory quality of the virgin olive oil (VOO) quality.
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Abstract: Different irrigation treatments were applied to a superintensive orchard of ‘Arbequina’ olives (Olea europaea L.) during three seasons (2007–2009) to examine the effect of the amount of water and the moment of irrigation in summer on the virgin olive oil (VOO) quality. A control was made (CON) with irrigation to maintain the root zone close to field capacity; two water deficit treatments were employed with irrigation at 30% of CON, either from the end of fruit drop to the end of July (DI-J) or from the end of July until the beginning of oil synthesis (DI-A); and other treatment was tested by irrigating 50% of CON in July and August (DI-JA). DI-J oils exhibited significantly higher oxidative stability, which coincided with significantly higher contents in phenol derivatives. Consequently, the selection of the moment and intensity of summer irrigation played an important role in the nutritional and sensory quality of the VOO.
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Yield and Water Productivity Responses to Irrigation Cut-off Strategies after Fruit Set Using Stem Water Potential Thresholds in a Super-High Density Olive Orchard
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Maurizio Servili,Roberto Selvaggini,Sonia Esposto,Agnese Taticchi,Gian Francesco Montedoro,Guido Morozzi +5 more
TL;DR: The sensory and healthy proprieties of VOO hydrophilic phenols as well as the agronomic and technological parameters that affect their concentration in the oil are discussed in this paper.
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Determination of phenols, flavones, and lignans in virgin olive oils by solid-phase extraction and high-performance liquid chromatography with diode array ultraviolet detection.
Raquel Mateos,José L. Espartero,Mariana Trujillo,Juan J. Rios,Manuel León-Camacho,Felipe Alcudia,Arturo Cert +6 more
TL;DR: The colorimetric determination of total o-diphenolic compounds by reaction with molybdate was consistent with their HPLC determination and 2-(4-hydroxyphenyl)ethyl acetate was detected in olive oils for the first time.
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Determination of the oxidative stability of fats and oils: comparison between the Active Oxygen Method (AOCS Cd 12-57) and the Rancimat method
TL;DR: In this article, an alternative rancimat method is proposed based on the conductometric determination of volatile degradation products and features automatic plotting of the conductivity against time. But the labor required for this method is considerably less as it is not necessary to perform titrations at regular intervals.
370
Changes in the phenolic composition of virgin olive oil from young trees (Olea europaea L. cv. Arbequina) grown under linear irrigation strategies.
TL;DR: In this article, the HPLC profiles of phenolic compounds of virgin olive oils obtained from young olive trees (Olea europaea L cv Arbequina) and how the application of a linear irrigation strategy affected these Hydroxytyrosols, tyrosol, vanillic acid, vanillin, 4-(acetoxyethyl)-1,2-dihydroxybenzene, p-coumaric acid.
245
Influence of different irrigation strategies in a traditional Cornicabra cv. olive orchard on virgin olive oil composition and quality
Aurora Gómez-Rico,M. Desamparados Salvador,Alfonso Moriana,David Pérez,Nicolas Olmedilla,Francisco Ribas,Giuseppe Fregapane +6 more
TL;DR: In this article, different irrigation treatments, based on regulated deficit irrigation (RDI), 100% ETc, 125% ETC, and rain-fed as control, were applied to a traditional olive orchard (cv Cornicabra) in a randomized complete-block design with four replications.
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