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Extraction of valuable compounds from Arthrospira platensis using pulsed electric field treatment [in press]

Jaeschke, Débora Pez; Mercali, Giovana Domeneghini; Marczak, Ligia Damasceno Ferreira; Müller, Georg; Frey, Wolfgang; Gusbeth, Christian

Abstract (englisch):
Pulsed electric field (PEF) treatment was evaluated for phycocyanin and proteins
extraction from Arthrospira platensis (Spirulina platensis). PEF extractions were
performed using different specific energies (28, 56 and 122 J·ml-1 of suspension) and
the results were compared to the extraction with bead milling. At highest PEF-treatment
energies a damage of the cell morphology could be observed and the highest yields (up
to 301.3 ± 16 mg g-1 and 48.4 ± 4.4 g g-1 of phycocyanins and proteins, respectively)
could be obtained at 122 and 56 J·ml-1. The yields increased with incubation time after
PEF-treatment. The antioxidant capacity of the extracts obtained after PEF-treatment
was higher than of those obtained after bead milling. PEF treatment is a promising
technology to obtain blue-green antioxidant extracts from A. platensis in an
environmental friendly process.

DOI: 10.1016/j.biortech.2019.03.035
Zugehörige Institution(en) am KIT Institut für Hochleistungsimpuls- und Mikrowellentechnik (IHM)
Publikationstyp Zeitschriftenaufsatz
Jahr 2019
Sprache Englisch
Identifikator ISSN: 0960-8524
KITopen-ID: 1000092462
HGF-Programm 35.13.01 (POF III, LK 01)
Erschienen in Bioresource technology
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