dc.contributor.author	Jung, Sun-Hwa
dc.contributor.author	Zell, Niklas
dc.contributor.author	Boßle, Fabian
dc.contributor.author	Teipel, Ulrich
dc.contributor.author	Rauh, Cornelia
dc.contributor.author	McHardy, Christopher
dc.contributor.author	Lindenberger, Christoph
dc.date.accessioned	2022-06-08T12:59:07Z
dc.date.available	2022-06-08T12:59:07Z
dc.date.issued	2022-05-19
dc.date.updated	2022-06-02T10:40:49Z
dc.description.abstract	Extracellular polysaccharides, or exopolysaccharides are high–molecular weight sugar-based polymers expressed and secreted by many microorganisms. As host organisms, the functions of exopolysaccharides are diverse, ranging from physical protection via biofilm formation, adhesion, and water retention to biological functions that are not entirely understood such as viral attachment inhibition. Industrial applications of exopolysaccharides can be found in food texture modification; for example, utilizing the hydrocolloidal properties of exopolysaccharides for thickening and gelling purposes to improve food quality and texture. Over the last decade, biologically active exopolysaccharides produced by microalgae have received attention for their potential as antiviral, antibacterial and antioxidative compounds and in the applications. However, relatively low yield and productivity are the limiting factors for full-scale industrial application. In this study, the well-known prokaryotic phototrophic microorganism Arthrospira platensis and the comparatively unknown eukaryotic unicellular green alga Chlamydomonas asymmetrica were used to evaluate the influence of different process parameters on exopolysaccharides formation and productivity. In addition to the essential control variables (light and temperature), the influence of operational techniques (batch and turbidostat) were also investigated. Although the two studied algae are differently affected by above parameters. The light intensity was the most influential parameter observed in the study, leading to differences in exopolysaccharides concentrations by a factor of 10, with the highest measured concentration for A. platensis of cEPS = 0.138 g L−1 at 180 μmol m−2 s−1 and for C. asymmetrica of cEPS = 1.2 g L−1 at 1,429 μmol m−2 s−1. In continuous systems, the achieved exopolysaccharides concentrations were low compared to batch process, however, slightly higher productivities were reached. Regardless of all screened process parameters, C. asymmetrica is the better organism in terms of exopolysaccharides concentrations and productivity.	en
dc.description.sponsorship	BMBF, 03SF0457, Grundlagen für mikroalgenbasierte Bioraffinerie-Konzepte	en
dc.description.sponsorship	BMEL, 22017518, Verbundvorhaben: Antivirale Substanzen und Pigmente; Teilvorhaben 1: Kultivierung	en
dc.identifier.eissn	2571-581X
dc.identifier.uri	https://depositonce.tu-berlin.de/handle/11303/17066
dc.identifier.uri	http://dx.doi.org/10.14279/depositonce-15845
dc.language.iso	en	en
dc.rights.uri	https://creativecommons.org/licenses/by/4.0/	en
dc.subject.ddc	630 Landwirtschaft und verwandte Bereiche	de
dc.subject.other	A. platensis	en
dc.subject.other	C. asymmetrica	en
dc.subject.other	exopolysaccharides	en
dc.subject.other	light	en
dc.subject.other	temperature	en
dc.subject.other	batch	en
dc.subject.other	turbidostat	en
dc.title	Influence of Process Operation on the Production of Exopolysaccharides in Arthrospira platensis and Chlamydomonas asymmetrica	en
dc.type	Article	en
dc.type.version	publishedVersion	en
dcterms.bibliographicCitation.articlenumber	883069	en
dcterms.bibliographicCitation.doi	10.3389/fsufs.2022.883069	en
dcterms.bibliographicCitation.journaltitle	Frontiers in Sustainable Food Systems	en
dcterms.bibliographicCitation.originalpublishername	Frontiers	en
dcterms.bibliographicCitation.originalpublisherplace	Lausanne	en
dcterms.bibliographicCitation.volume	6	en
tub.accessrights.dnb	free	en
tub.affiliation	Fak. 3 Prozesswissenschaften::Inst. Lebensmitteltechnologie und Lebensmittelchemie::FG Lebensmittelbiotechnologie und -prozesstechnik	de
tub.affiliation.faculty	Fak. 3 Prozesswissenschaften	de
tub.affiliation.group	FG Lebensmittelbiotechnologie und -prozesstechnik	de
tub.affiliation.institute	Inst. Lebensmitteltechnologie und Lebensmittelchemie	de
tub.publisher.universityorinstitution	Technische Universität Berlin	en

Influence of Process Operation on the Production of Exopolysaccharides in Arthrospira platensis and Chlamydomonas asymmetrica

Files

Original bundle

License bundle

Collections