Extraction of valuable compounds from Arthrospira platensis using pulsed electric field treatment. (July 2019)

• Record Type: Journal Article
• Authors: Jaeschke, Débora Pez; Mercali, Giovana Domeneghini; Marczak, Ligia Damasceno Ferreira; Müller, Georg; Frey, Wolfgang; Gusbeth, Christian
• Is Part Of: Bioresource technology. Volume 283(2019)
• Page Start: 207
• Page End: 212
• Publication Date: 2019-07
• Subjects: Pulsed electric field -- Phycocyanin -- Protein -- Electroporation -- Cyanobacteria -- Pigments -- Antioxidant capacity; Biomass -- Periodicals; Biomass energy -- Periodicals; Bioremediation -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Bioénergie -- Périodiques; Déchets agricoles -- Périodiques; Déchets industriels -- Périodiques; Déchets organiques -- Périodiques; Déchets (Combustible) -- Périodiques; 662.88
• DOI: 10.1016/j.biortech.2019.03.035
• Languages: English
• ISSNs: 0960-8524

Abstract

Highlights: PEF-treatment induced a damage of the cell structure. After PEF-treatment, an incubation time was needed for the extraction. A purified phycocyanin-protein rich extract was obtained. The antioxidant activity of PEF-extracts was higher than bead milling extracts. Abstract: 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 85.2 ± 5.7 mg·g −1 and 48.4 ± 4.4 g·100 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.