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dc.contributor.authorCarullo, Daniele
dc.date.accessioned2020-04-01T06:40:07Z
dc.date.available2020-04-01T06:40:07Z
dc.date.issued2019-03-12
dc.identifier.urihttp://elea.unisa.it:8080/xmlui/handle/10556/4301
dc.identifier.urihttp://dx.doi.org/10.14273/unisa-2506
dc.description2017 - 2018it_IT
dc.description.abstractRecently, the idea of valorizing industrial agro-food wastes and microalgal biomass, through an efficient recovery of their major bioactive constituents to be used as ingredients in food, feed, pharmaceutical and cosmetic sectors, is gaining interest, due to the increasing demand of consumers for natural products. However, the extraction of these compounds is problematic, due to the presence of a “physical barrier” (cell wall/membrane) when removing intracellular substances. Pre-treatment stage (thermal, mechanical or enzymatic) to permeabilise cellular tissues and facilitate the diffusion of the intracellular compounds in the external medium are required, together with the use of large amount of organic solvents and long contact times. This lead to high energy consumption, the formation of undesired compounds as well as to the eventual degradation of the target molecules to be recovered. Physical pretreatments operations have been proposed in the last year to overcome these problems and among them Pulsed electric fields (PEF) technology has shown promising results as to obtain mild, sustainable and efficient permeabilisation of cell membranes with respect to conventional cell disintegration methods. PEF consists in exposing biological cells to repetitive short voltage pulses (μs – ms in width) with an electric field strength in the range 0.5 - 50 kV/cm and an energy input up to 150 kJ/kg, mainly depending on cell size and morphology. This technique exploits its potential via the “electroporation” of membranes, which rapidly favors the leakage of valuable compounds from the cells. ... [edited by Author]it_IT
dc.language.isoenit_IT
dc.publisherUniversita degli studi di Salernoit_IT
dc.subjectPEFit_IT
dc.subjectBiorefineryit_IT
dc.subjectSostenibilitàit_IT
dc.titleIntegration of pulsed electric fields technology in the biorefinery of agri-food wastes and microalgaeit_IT
dc.typeDoctoral Thesisit_IT
dc.subject.miurING-IND/25 IMPIANTI CHIMICIit_IT
dc.contributor.coordinatoreReverchon, Ernestoit_IT
dc.description.cicloXXXI cicloit_IT
dc.contributor.tutorFerrari, Giovannait_IT
dc.identifier.DipartimentoIngegneria Industrialeit_IT
dc.contributor.refereePataro, Gianpieroit_IT
dc.contributor.refereeVorobien, Eugeneit_IT
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