Search results for "Olive oil quality"
showing 7 items of 7 documents
Testing the potential significance of different scion/rootstock genotype combinations on the ecology of old cultivated olive trees in the southeast M…
2017
Background A previous multi-locus lineage (MLL) analysis of SSR-microsatellite data of old olive trees in the southeast Mediterranean area had shown the predominance of the Souri cultivar (MLL1) among grafted trees. The MLL analysis had also identified an MLL (MLL7) that was more common among rootstocks than other MLLs. We here present a comparison of the MLL combinations MLL1 (scion)/MLL7 (rootstock) and MLL1/MLL1 in order to investigate the possible influence of rootstock on scion phenotype. Results A linear regression analysis demonstrated that the abundance of MLL1/MLL7 trees decreases and of MLL1/MLL1 trees increases along a gradient of increasing aridity. Hypothesizing that grafting o…
Sistema de monitorización en continuo a tiempo real de la concentración de oxígeno durante el batido para la producción de aceite de oliva virgen
2012
During the mechanical extraction process of Virgin Olive Oil (VOO) some important physical phenomena and enzymatic transformations occur which influence the quality of the final product. The control of process parameters is crucial to ensure the quality of VOO, therefore process monitoring and control is a fundamental requirement in the modern VOO processing industry. The present work proposes an innovative Real-Time Monitoring System (RTMS) aimed at continuously measuring the oxygen concentration during the malaxation process in order to establish a correlation with the quality of the final product obtained. This monitoring system is based on an oxygen concentration sensor directly connect…
The sustainability of olive orchard planting management for different harvesting techniques: An integrated methodology
2019
Abstract The globalization of the olive oil market has caused greater competitiveness in terms of olive oil quality and production costs and the main countries interested in olive growing, have introduced efficient planting design and horticultural techniques in order to meet these requirements. In this paper the sustainability of olive orchard planting management for different olive fruit-harvesting methods has been assessed on the basis of the data gathered by the Geographic Information System and processed using a Multi-Criteria Decision Making Analysis. In particular, three different agronomic scenarios have been analyzed and a specific cultivar has been considered in order to ensure th…
An oxygen monitoring and control system inside a malaxation machine to improve extra virgin olive oil quality
2013
In recent years, oxygen content regulation during malaxation has been noted as a process parameter. The aim of this study was to identify the optimal time during the malaxation process of the olives of the Sicilian cultivar Nocellara del Belice when the presence of oxygen in the machine headspace activates the enzyme complex in favour of the volatile compounds, without compromising the phenolic composition. During the malaxation process, the atmosphere inside the malaxation machine was modified by blowing pure oxygen from cylinders at specific stages of the process (i.e., 5, 15, 25, and 35 min after the start of malaxation), using a system that allows the automatic and continuous maintenanc…
Development of Methods for Olive Oil Quality Evaluation
2012
In this work, a simple and quick method for olive oil classification according to its quality grades, based on direct infusion ESI–MS and LDA, was developed. Moreover, mixtures of EVOO and VOO, and binary mixtures of these two oils with olive oils of lower quality grade have been also evaluated using this methodology and MLR and PLS data treatment.
Factors Affecting Extra-Virgin Olive Oil Composition
2011
ABBREVIATIONS I. THE CONCEPT OF OLIVE OIL QUALITY II. EVOO COMPOSITION AND NUTRITIONAL PROPERTIES III. SOURCES OF VARIABILITY OF EVOO COMPOSITION AND PROPERTIES IV. AGRONOMICAL AND ENVIRONMENTAL FACTORS AFFECTING EVOO COMPOSITION AND QUALITY A. Genotype B. Growing Area and Seasonal Conditions C. Tree Water Status D. Productivity and Alternate Bearing E. Orchard Management 1. Cultivation Method 2. Training System and Pruning 3. Fertilization and Soil Management
Controlling the atmosphere in the malaxation machine headspace in order to improve the quality of Sicilian extra virgin olive oils
2012
During the mechanical extraction process of Virgin Olive Oil (VOO) some important physical phenomena and enzymatic transformations occur influencing the final product quality. The control of process parameters is crucial to ensure the quality of VOO, therefore process monitoring and control is a fundamental requirement in the modern VOO processing industry. The present work proposes a research performed in order to develop a system for the oxygen continuous monitoring inside the malaxation machine to enhance the Sicilian extra virgin olive oil typicality and to establish a correlation with the quality of the final product. The results showed that the use of oxygen during malaxation, allowed…