Affiliation

• ¹University of Nantes, GEPEA, UMR CNRS 6144, IUML FR CNRS n°3473, F-44600 Saint-Nazaire
• ²University of South-Brittany, LBCM, EA 3884, IUEM, F-56000 Vannes, France
• ³University of Western Brittany, LEMAR, UMR 6539, IUEM, F-29280 Plouzané, France

Corresponding Author

Laurent Vandanjon, University of South Brittany, UFR SSI, F-56100 Lorient, France, Tel: +332.97.01.75.25, E-mail: laurent.vandanjon@univ-ubs.fr

Citation

Vandanjon, L., et al. Comparison of Different Membrane Filtration Systems for Recovering Active Phenolic Compounds from the European Spread Macroalga Sargassum muticum. (2017) J Marine Biol Aquacult 3(1): 1- 7.

Copy rights

© 2017 Vandanjon, L. This is an Open access article distributed under the terms of Creative Commons Attribution 4.0 International License.

Keywords

Abstract

  Sargassum muticum is an invasive macroalga that uncontrollable widely grows on the European Atlantic coasts. This macroalga is particularly rich in phenolics (phlorotannins) presenting biological activities such as antioxidant, radical-scavenging, antibacterial, 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.