Techno-Functional Properties of Crude Extracts from the Green Microalga Tetraselmis suecica.
J Agric Food Chem
; 66(29): 7831-7838, 2018 Jul 25.
Article
in En
| MEDLINE
| ID: mdl-29976070
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.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Plant Extracts
/
Chlorophyta
/
Microalgae
Language:
En
Journal:
J Agric Food Chem
Year:
2018
Document type:
Article
Affiliation country:
Países Bajos