Enzyme-assisted pervaporative recovery of concentrated bergamot peel oils

The concentration of bergamot peel oils by pervaporation, with and without enzymatic pre-treatment, is studied. The influence of different PV membranes, industrial enzymes and operational parameters on the PV process are also investigated. GC-MS analyses are carried out to evaluate the recovery of the main aroma compounds such as linalool, linalyl acetate and limonene.