Valutazioni economiche dei processi estrattivi e di valorizzazione dei reflui oleari.

The technological innovations of the project VALOROLIO act as an integrated package of interventions at the system load of extra virgin olive oil extraction and treatment processes of all products with a view to their economic value. The pitting of the olives allows a substantial modification of the extraction process with the production of new products, almond and peanut, as well as the modification of the quali-quantitative traditional products (virgin olive residues pitted, vegetation waters rich in polyphenols) which guarantee pet food uses and pharmaceutical. The economic unit in the course of the project assessed the economic effects of innovation on the entire supply chain by identifying the critical points is that the business opportunities. Here, the limited space available, will be presented the microeconomic analysis documenting the opportunities offered by technological innovation

Valutazioni economiche dei processi estrattivi e di valorizzazione dei reflui oleari.

The technological innovations of the project VALOROLIO act as an integrated package of interventions at the system load of extra virgin olive oil extraction and treatment processes of all products with a view to their economic value. The pitting of the olives allows a substantial modification of the extraction process with the production of new products, almond and peanut, as well as the modification of the quali-quantitative traditional products (virgin olive residues pitted, vegetation waters rich in polyphenols) which guarantee pet food uses and pharmaceutical. The economic unit in the course of the project assessed the economic effects of innovation on the entire supply chain by identifying the critical points is that the business opportunities. Here, the limited space available, will be presented the microeconomic analysis documenting the opportunities offered by technological innovation

Low-frequency, high-power ultrasound treatment at different pressures for olive paste: Effects on olive oil yield and quality.

Abstract Ultrasound technology was employed to test its action on the extraction of olive oil at the industrial scale. Because of its mechanical effects, ultrasound waves were applied to the olive paste, between the crushing and malaxing operations. Comparative experiments were performed between traditional extraction processes and the innovative extraction process, with the addition of the ultrasound treatment. Different levels of pressure were tested on olive paste, using four different olive cultivars. Pressure level played an important role in olive oil extractability. When ultrasound was subjected to olive paste with a pressure of about 3.5 bar, there was a significant increase of extractability compared to the traditional process. On the other hand, there was no significant effect between ultrasound treatment and traditional technology on extractability when ultrasound at a pressure level of 1.7 bar was used

In vitro modulatory effects of colonic microflora by olive oil iridoids.

The Mediterranean diet, rich in fruits, vegetables, and grains as well as olive oil and olives, has been associated with a lower risk of coronary heart disease and cancer. The beneficial role of olive oil has been related to its fatty acid composition and the presence of phenolic compounds. The present research aimed to study the biological activity of some olive oil iridoids, such as hydroxytyrosol and tyrosol, as microbial inhibitors and their in vitro effects on modulation of human intestinal microflora. Among the tested strains, Bifidobacterium longum , Lactobacillus salivarius , and Bacteroides vulgatus showed the highest sensitivity to the tested compounds; however, the inhibitory effect of iridoids seemed to be more effective when a mix of olive oil iridoids, instead of pure hydroxytyrosol, was used. The fermentation experiments showed that olive oil iridoids modulate the intestinal microflora, leading to a higher production of total short chain fatty acids and in particular of butyrate. These are important conditions well known to be associated with a protective effect against colon cancer development. Key words: olive oil iridoids, hydroxytyrosol, intestinal microflora, semi-continuous culture syste

Evaluation of a multisensorial system for a rapid preliminary screening of the olive oil chemical compounds in an industrial process

In this study, a sensory system, named BIONOTE, based on gas and liquid analyses was used to analyse the headspace of olive oil samples obtained at the end of the extraction process for a preliminary screening of the volatile and phenolic compounds. Olive oil samples were obtained using different olive paste conditioning systems, including microwave and megasound machines at different processing time. The same olives batch was used for the entire test. BIONOTE showed the ability to discriminate between 64 virgin olive oils originated from different technologies or by using different process parameters, as demonstrated by the partial least square discriminant analysis (PLS-DA) models calculated. The percentage of correct classification in different conditions are in a range from 92.19% to 100%. In addition, the research shown that the multisensorial system can provide a preliminary estimation of some volatile and phenolic compounds concentrations detected by laboratory analysis. Data analysis has been performed using multivariate data analysis techniques: PLS-DA cross validation via leave one out criterion. Future perspectives are to further develop BIONOTE in order to increase the number of detected chemical compounds and finally to include the mathematical models obtained in the BIONOTE microcontroller for a rapid chemical characterization of olive oil in the mill

Improvement of Olive Oil Mechanical Extraction: New Technologies, Process Efficiency, and Extra Virgin Olive Oil Quality

Most of the recent technological innovations applied to the mechanical oil extraction process are aimed at improving virgin olive oil quality and yield. Extra virgin olive oil (EVOO) quality is mainly based on the qualitative/quantitative composition of monounsaturated fatty acids, volatile and phenolic compounds that are strictly related to the health and sensory properties of the product, with particular attention given to the fraction of secoiridoid derivatives and C5 and C6 volatile compounds. The different levels of concentration of these compounds are due to some important variables: agronomic and technological. The chapter explains the recent approaches and innovations introduced in the oil extraction process to improve the working efficiency of the production system and to obtain high‐quality extra virgin olive oils

Strategie d'imprese e qualità nel comparto degli oli extravergini di oliva molisani

Recent approaches about food quality have stressed the social processes by which “quality conventions” prevailing on the market are achieved. The present work investigates these conventions on the supply side, focusing on the “styles” characterizing the management of a group of firms. More specifically, the research analyzes a group of oil-press plants localized in Molise, an Italian region the name of which is also the “brand-name” of a PDO recently registered by EU. In the first part the essay outlines the scenario of both olive oil market and local context. In the second section the paper shows the results of a direct survey. Applying factorial analysis to the data collected in the survey, four main “quality factors” were identified: safety and health; localization and scale; product differentiation; technological heritage. On the basis of these factors it was possible to point out three main styles characterizing the sample firms: the “endogenous”, the local, and the “fordistic” one