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Pulsed electric field (PEF) recovery of biomolecules from Chlorella: Extract efficiency, nutrient relative value, and algae morphology analysis

Authors :
Universidad de Valencia
Universidad de Vigo
European Commission
Generalitat Valenciana
Wang, Min
Zhou, Jianjun
Castagnini, Juan Manuel
Berrada, Houda
Barba, Francisco J.
Universidad de Valencia
Universidad de Vigo
European Commission
Generalitat Valenciana
Wang, Min
Zhou, Jianjun
Castagnini, Juan Manuel
Berrada, Houda
Barba, Francisco J.
Publication Year :
2022

Abstract

This study investigated the effects of pulsed electric field (PEF) (3 kV/cm, 44 pulses, 99 kJ/kg), solvent (H2O or 50 % DMSO) and time (0, 10, 20, 30, 60, 90, 120 and 180 min) on the extraction of Chlorella antioxidant biomolecules and minerals. The results showed that PEF treatment increased the biomolecules recovery. For the extraction time of 120 min, more proteins and polyphenols were obtained using water, while more chlorophyll a and b, and carotenoids were obtained using 50 % DMSO as the extraction solvent. The extracts mineral concentration (PEF vs control) were analysed including Mg, P, Ca, Fe and Zn, and the Relative Nutrient Values results indicated that Chlorella H2O-extracts could be used as a mineral source for different populations. Finally, the fluorescence and scanning electron microscopy revealed the electroporation effect of PEF.

Details

Database :
OAIster
Notes :
English
Publication Type :
Electronic Resource
Accession number :
edsoai.on1356200374
Document Type :
Electronic Resource