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RESEARCH PRODUCT

Improved Extraction Efficiency of Antioxidant Bioactive Compounds from Tetraselmis chuii and Phaedoactylum tricornutum Using Pulsed Electric Fields

Mercedes TaroncherFrancisco J. BarbaFrancisco J. Martí-quijalMaría-josé RuizKaterina KousoulakiMarialena Kokkali

subject

0106 biological sciencesChlorophyll bAntioxidantmedicine.medical_treatmentPharmaceutical ScienceTetraselmis chuii01 natural sciencesPhaeodactylum tricornutumArticleAntioxidantsAnalytical Chemistrylcsh:QD241-441chemistry.chemical_compound0404 agricultural biotechnologylcsh:Organic chemistryChlorophyta010608 biotechnologyDrug DiscoverymedicineMicroalgaePhaeodactylum tricornutum<i>Phaeodactylum tricornutum</i>Physical and Theoretical ChemistryTetraselmis<i>Tetraselmis chuii</i>Carotenoidchemistry.chemical_classificationDiatomsChromatographybiologyChemistryDimethyl sulfoxideOrganic ChemistryExtraction (chemistry)Polyphenols04 agricultural and veterinary sciencesbiology.organism_classification040401 food science6. Clean waterElectroporationpulsed electric fieldsChemistry (miscellaneous)PolyphenolextractionMolecular Medicineantioxidant bioactive compounds

description

Pulsed electric fields (PEF) is a promising technology that allows the selective extraction of high-added value compounds by electroporation. Thus, PEF provides numerous opportunities for the energy efficient isolation of valuable microalgal bioactive substances (i.e., pigments and polyphenols). The efficiency of PEF-assisted extraction combined with aqueous or dimethyl sulfoxide (DMSO) solvents in recovering pigments and polyphenols from microalgae Tetraselmis chuii (T. chuii) and Phaeodactylum tricornutum (P. tricornutum) was evaluated. Two PEF treatments were applied: (1 kV/cm/400 pulses, 3 kV/cm/45 pulses), with a specific energy input of 100 kJ/kg. The total antioxidant capacity (TAC) was positively influenced by the use of DMSO. The highest TAC in the T. chuii culture was achieved at a lower extraction time and electric field than for P. tricornutum. The use of DMSO only improved the polyphenols&prime

yearjournalcountryeditionlanguage
2020-08-27Molecules
10.3390/molecules25173921http://dx.doi.org/10.3390/molecules25173921