Skip to Main content Skip to Navigation
Journal articles

Polyethyleneimine as a tool for compounds fractionation by flocculation in a microalgae biorefinery context

Abstract : In the context of emerging biorefinery for microalgae, polyethyleneimine (PEI), has been tested in order to achieve separation of fat-soluble and water-soluble compounds from Haematococcus pluvialis. Several parameters were taken into account (ratio between sample and PEI, pH, and ionic strength) and 2 conditions (0.075% PEI pH 7.4, and 0.100% PEI pH8.5) were studied for up-scalability, with a recovery of flocculated compounds (lipids and pigments), and a complete characterization of both phases. Using 0.075% PEI, pH7.4, 100% sugars and 89.8% proteins were retained in the supernatant, but some trace of beta-carotene were also detected. For 0.100% PEI, pH 8.5, a loss in proteins content was highlighted (61.2% proteins retained), but no residual lipids or pigments were detected. PEI could therefore be considered as an efficient method to fractionate fat-soluble and water-soluble compounds from microalgae.
Document type :
Journal articles
Complete list of metadata

https://hal.uca.fr/hal-03082384
Contributor : Christophe Tournayre Connect in order to contact the contributor
Submitted on : Friday, December 18, 2020 - 3:41:34 PM
Last modification on : Wednesday, November 3, 2021 - 3:58:12 AM

Links full text

Identifiers

Citation

Fatou Ba, Alexandrine Foissard, André Lebert, Gholamreza Djelveh, Céline Laroche. Polyethyleneimine as a tool for compounds fractionation by flocculation in a microalgae biorefinery context. Bioresource Technology, Elsevier, 2020, 315, pp.123857. ⟨10.1016/j.biortech.2020.123857⟩. ⟨hal-03082384⟩

Share

Metrics

Record views

14