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Integration of Pulsed Electric Fields in the Biorefinery Concept to Extract Microalgae Components of Interest for Food Industry

Gusbeth, Christian Adrian 1; Frey, Wolfgang 1
1 Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

The high cultivation costs for microalgae and the complex and costly downstream processing make the price per ton of raw materials from microalgae biomass, such as biofuel, uneconomic. To overcome this detriment, it is suggested to use the residual biomass for biofuel production after obtaining high- and middle-value products. Microalgae are an attractive food source, since they are rich in proteins, peptides, carbohydrates, lipids, and other essential nutrients with protective and detoxifying roles (vitamins, minerals, pigments). A major problem is that these valuable components cannot be accessed without prior and adequate cell disruption. This chapter discusses a new strategy to integrate PEF treatment into biorefinery concept by implementation of an incubation step which facilitates the release of intracellular components after PEF treatment. Based on the results obtained from the microalgae Chlorella vulgaris and the cyanobacteria Arthrospira platensis, the dependence of various influencing factors such as temperature, pH value, and biomass concentration on protein release during the incubation step is shown. Finally, the efficiency of this approach is discussed.


Postprint §
DOI: 10.5445/IR/1000142968
Veröffentlicht am 19.12.2022
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Hochleistungsimpuls- und Mikrowellentechnik (IHM)
Publikationstyp Buchaufsatz
Publikationsjahr 2022
Sprache Englisch
Identifikator ISBN: 978-3-030-70585-5
ISSN: 1571-0297
KITopen-ID: 1000142968
HGF-Programm 38.05.01 (POF IV, LK 01) Anthropogenic Carbon Cycle
Erschienen in Pulsed Electric Fields Technology for the Food Industry. Ed.: J. Raso
Verlag Springer Nature Switzerland
Seiten 369-384
Serie Food Engineering Series
Vorab online veröffentlicht am 01.01.2022
Nachgewiesen in Dimensions
Scopus
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