Comparison of Different Membrane Filtration Systems for Recovering Active Phenolic Compounds from the European Spread Macroalga Sargassum muticum - LBCM-UBS Accéder directement au contenu
Article Dans Une Revue Journal of Marine Biology and Aquaculture Année : 2017

Comparison of Different Membrane Filtration Systems for Recovering Active Phenolic Compounds from the European Spread Macroalga Sargassum muticum

Résumé

Sargassum muticum is an invasive macroalga that uncontrollable widely grows on the European Atlantic coasts. This macroalga is particularly rich in phenolics (phlorotan-nins) presenting biological activities such as antioxidant, radical-scavenging, antibacte-rial, photoprotective properties, etc. Among the diversity of metabolites produced by the species, phenolic compounds could constitute one of the potential ways of valorization of Sargassum muticum.For the needs of the study, algae were harvested along a latitudinal gradient in Norway, Ireland, France, Spain and Portugal.After extraction, the highest phenolic contents and bioactivities were measured for the samples coming from Norway and Portugal. Consequently, both these countries have been retained in the present work.The extracts are composed of a “pool” of phenolic compounds of molecular weight varying, according to the literature, from 126 Da (phloroglucinol) to 650 kDa. But the most common compounds are comprised between 10 and 100 kDa. With the aim of concentrating and eventually fractionating (i.e. isolating the most active fractions) the phenolic extracts of Sargassum muticum, a few membranes of Molecular Weight Cut-Off 10 kDa were chosen. These membranes were tested by using different technologies: ultrafiltration, centrifugal tube and dialysis.Results show that there is no significant activity in the permeates signifying that the retention rate is about 100 % for the active fractions. Concerning the retentates, results show clearly an increase of the total phenolic contents as well as antioxidant and radical scavenging activities. The best performances are obtained with the centrifugal tubes using 10 kDa membranes.
Fichier principal
Vignette du fichier
Vandanjon_etal_JoMBaA_2017.pdf (930.51 Ko) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Loading...

Dates et versions

hal-02613238 , version 1 (19-05-2020)

Identifiants

Citer

L. Vandanjon, C. Hersant, A. Tanniou, Fabienne Guérard, Valérie Stiger-Pouvreau. Comparison of Different Membrane Filtration Systems for Recovering Active Phenolic Compounds from the European Spread Macroalga Sargassum muticum. Journal of Marine Biology and Aquaculture, 2017, 3 (1), pp.1-7. ⟨10.15436/2381-0750.17.1224⟩. ⟨hal-02613238⟩
82 Consultations
80 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More