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Università degli Studi di Trento - Dipartimento di Ingegneria Civile ed Ambientale (DICA)
Via Mesiano 77 - 38123 Trento (TN)

Contact for project
Tel. +39 0461 282692
Fax +39 0461 282672


The Unit of Trento bases the activity relevant to the project on the facilities which are present at the "Biomass Laboratory" of the Civil and Environmental Engineering Department of the University of Trento. The research centre deals with biomass valorisation, both on an energetic and on a food engineering point of view. Neglecting the energetic aspects (not relevant for the present research), the "Biomass Laboratory" owns the following main facilities:
- A supercritical extractor which allows working at pressure up to 600 bars, and at controlled pressure, temperature and solvent flow rate. The apparatus is capable to extract about 300 grams of substrate per time, and thus its size is between lab and pilot plant scale.
- A Carlo Erba mega series gas chromatograph, model 5300, equipped with a flame ionization detector. It is utilized for the evaluation of the fatty acid profile of the extracted oil.
- For the present project, the unit has been provided with a mechanical extractor.
This Unit has a consolidated experience in oil SFE from different sources, such as grape seeds. The working team has developed several software codes for the modelling of the of the seed oil SFE process. The Unit is the only one which can operate SFE, a very interesting technique for the recovery of high-added value compounds under reduced temperature and non oxidative environment. The Unit was active in project somehow related to Valorvitis: in 2007 the Autonomous Province of Trento funded the project "Combined utilization of supercritical CO2 and ethanol for the recovery of added-value compounds from food-industrial waste and officinal plants" and in 2009 the "Federazione delle Cooperative Trentine" (Federation of the Trentino cooperatives) funded the project "Exhausted grape marc valorisation at local and trans-national level: cooperation for its exploitation as a source of energy and food additives"; Luca Fiori was the main responsible researcher for both projects.



Is Assistant Professor of Chemical Engineering Fundamentals at the Faculty of Engineering of the University of Trento.
Luca Fiori is actually involved in two main research fields: one relevant to food engineering, and in particular to the supercritical extraction technology, the other regarding the energy sector, and in particular the thermo-chemical processing of biomass.
The scientific production is testified by more than 60 research studies published in international reviewed papers and in congress reports.

Role in the project
Collection of by-products. Coordination of experimental activities: grape seed oil supercritical CO2 extraction and mechanical extraction. Coordination of analytical activities: grape seed oil characterization (fatty acid profile). Process modeling and optimization.

Selected pubblications

1. Fiori L., Valbusa M., Lorenzi D., Fambri L. (2012) Modeling of the devolatilization kinetics during pyrolysis of grape residues. Bioresource Technology, 103, 389-397.
2. Casazza A.A., Aliakbarian B., De Faveri D., Fiori L., Perego P. (in press) Antioxidants from winemaking wastes: a study on extraction parameters using response surface methodology. Journal of Food Biochemistry, available on line.
3. Fiori L., Costa P. (2010) Effects of differential permeability on packed bed supercritical extractors: a theoretical insight. Journal of Supercritical Fluids, 55, 176-183.
4. Fiori L. (2010) Supercritical extraction of grape seed oil at industrial-scale: plant and process design, modeling, economic feasibility. Chemical Engineering and Processing, 49, 866-872.
5. Fiori L., Florio L. (2010) Gasification and combustion of grape marc: comparison among different scenarios. Waste and Biomass Valorization, 1, 191-200.
6. Rada E.C., Ragazzi M., Fiori L., Antolini D. (2009) Bio-drying of grape marc and other biomass: a comparison. Water Science & Technology, 60, 1065-1070.
7. Fiori L., De Faveri D., Casazza A. A., Perego P. (2009) Grape by-products: extraction of polyphenolic compounds using supercritical CO2 and liquid organic solvent – a preliminary investigation. CyTA-Journal of Food, 7, 163-171.
8. Fiori L., Basso D., Costa P. (2009) Supercritical extraction kinetics of seed oil: a new model bridging the ‘broken and intact cells’ and the ‘shrinking core’ models. Journal of Supercritical Fluids, 48, 131-138.
9. Fiori L. (2007) Grape seed oil supercritical extraction kinetic and solubility data: critical approach and modeling. Journal of Supercritical Fluids, 43, 43-54.
10. Fiori L., Calcagno D., Costa P. (2007) Sensitivity analysis and operative conditions of a supercritical fluid extractor. Journal of Supercritical Fluids, 41, 31-42.

Bachelor of Science (BSc) in Environmental Engineering - University of Potenza, Engineering Faculty (Italy).
At present PhD student in Environmental Engineering under the supervision of Luca Fiori.

Role in the project

Process modelling

Selected pubblications

1. Castello D., Fiori L. (2011) Supercritical water gasification of biomass: Thermodynamic constraints. Bioresource Technology, 102, 7574-7582.

Bachelor of Science (BSc) in Chemical Engineering at Bahir Dar University Engineering Faculty, School of Chemical and Food Engineering. Bahir Dar. Ethiopia.
Master of Technology in Civil Engineering (with specialization in Environmental Engineering) at Indian Institute of Technology (IIT) Roorkee. Roorkee-247667 India.
At present PhD student in Environmental Engineering under the supervision of Luca Fiori.

Role in the project

Experimental activities and process modeling

BERTI Roberto
Student of "Ingegneria delle industrie alimentari2 at the Faculty of Engineering of the University of Trento.

Role in the project

Experimental activities

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