Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

Record number 539656
Title Techno-Functional Properties of Crude Extracts from the Green Microalga Tetraselmis suecica
Author(s) SuarezGarcia, E.; Leeuwen, J.J.A. Van; Safi, C.; Sijtsma, L.; Broek, L.A.M. van den; Eppink, M.H.M.; Wijffels, R.H.; Berg, C. van den
Source Journal of Agricultural and Food Chemistry 66 (2018)29. - ISSN 0021-8561 - p. 7831 - 7838.
DOI https://doi.org/10.1021/acs.jafc.8b01884
Department(s) Bioprocess Engineering
FBR BP Biorefinery & Sustainable Value Chains
FBR Bioconversion
VLAG
FB FBEZ, Financiele Administratie
Publication type Refereed Article in a scientific journal
Publication year 2018
Keyword(s) bead milling - crude extract - filtration - gelation - surface activity
Abstract

A mild fractionation process to extract functional biomolecules from green microalgae was implemented. The process includes bead milling, centrifugation, and filtration with several membrane cut-offs. For each fraction, the corresponding composition was measured, and the surface activity and gelation behavior were determined. A maximum protein yield of 12% was obtained in the supernatant after bead milling and between 3.2 and 11.7% after filtration. Compared to whey protein isolate, most of the algae fractions exhibited comparable or enhanced functionality. Surface activity for air-water and oil-water interfaces and gelation activities were notably superior for the retentate fractions compared to the permeates. It is proposed that such functionality in the retentates is due to the presence of hydrophobic compounds and molecular complexes exhibiting a similar behavior as Pickering particles. We demonstrated that excellent functionality can be obtained with crude fractions, requiring minimum processing and, thus, constituting an interesting option for commercial applications.

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