Search results for " TECNOLOGIE"

Screencity Festival. La città…una questione di Schermi

2013

A solar photothermo-catalytic combined process for the VOCs combustion and the subsequent CO2 valorization using noble metal-free catalysts

2023

We here investigated a solar photothermo-catalytic combined process where the toluene (as volatile organic compound model) was first oxidized to CO2 which was subsequently converted into solar fuels in a second reactor. For this aim two noble-metal free catalytic systems were used, namely MnOx-ZrO2, which gave the best results for the toluene removal, and brookite TiO2-CeO2 mixed oxides which were the most efficient in the subsequent CO2 conversion. This latter reaction was further improved by the addition of small amounts of copper-based materials on brookite-ceria, acting as co-catalysts. The key point for both the examined reactions was the synergism between the thermocatalytic and the p…

Free fatty acids and other volatile compounds for the characterisation of "Vastedda della valle del Belice" cheese.

2010

The analysis of the volatile constituents of “Vastedda della valle del Belìce”, a typical Sicilian pasta filata cheese, was performed using solid phase microextraction and high-resolution gas chromatography/mass spectrometry. The research aimed to verify if the volatile fraction, determinant for cheese flavor, differs among producers and/or production seasons. The samples were provided by four producers from the area of the Protected Designation of Origin (PDO) production, during two different seasons of production. A total of 42 volatile components were identified: the main components were found to be butanoic, hexanoic, octanoic, and decanoic acid. Free fatty acids were quantified using t…

Networking strategy as a strategic management tool

2011

Many research studies in operations and strategic management have investigated how different kinds of decisions regarding business relationships can positively affect firm’s operations performance, resources endowment, and competitive position. Very few studies exist trying to illuminate the actual behavior of managers when making strategic decisions concerning their company relationships with other companies as opposed to normative theory. By collecting data from 13 business agreements from 3 firms, the purpose of this paper is explore linkages between the “set” of strategic objectives that managers are willing to pursue and the “set” of networking decisions that they actually consider whe…

Composti volatili di vinacce, flemme e grappe della cv autoctona siciliana Grillo

2011

Maturazione dei vini rosati con la tecnica “sur lies”

2009

Produzione di vini bianchi senza l’uso di solfiti

2014

Vinificazione in bianco in presenza di chips di quercia di origine e livello di tostatura

2011

E-beam crosslinked, biocompatible functional hydrogels incorporating polyaniline nanoparticles

2012

Abstract PANI aqueous nanocolloids in their acid-doped, inherently conductive form were synthesised by means of suitable water soluble polymers used as stabilisers. In particular, poly(vinyl alcohol) (PVA) or chitosan (CT) was used to stabilise PANI nanoparticles, thus preventing PANI precipitation during synthesis and upon storage. Subsequently, e-beam irradiation of the PANI dispersions has been performed with a 12 MeV Linac accelerator. PVA-PANI nanocolloid has been transformed into a PVA-PANI hydrogel nanocomposite by radiation induced crosslinking of PVA. CT-PANI nanoparticles dispersion, in turn, was added to PVA to obtain wall-to-wall gels, as chitosan mainly undergoes chain scission…

Influence of Variety and Maturity Stage on Sterolic Composition of Virgin Olive Oil from Central-Western Sicily

Olive oil is one of the most important food products throughout the Mediterranean Basin due to its high nutritional and dietetic value. In recent years, there has been increased interest in the sterols of olive oil for their health benefts and their importance to virgin olive oil quality regulation. The impact of sterols on the human health is proved by several studies, showing that a suffcient quantity of β-sitosterol inhibits the intestinal absorption of LDL-cholesterol. In olive oil the phytosterol concentration ranges from 800 to 2600 mg kg-1. Sterol esters evaluation has been proposed as useful parameter in studies related to varietal and geographical discrimination. Cultivar and matur…