Journal of Analytical, Bioanalytical and Separation TechniquesJournal of Analytical, Bioanalytical and Separation TechniquesJournal of Analytical, Bioanalytical and Separation TechniquesJournal of Analytical, Bioanalytical and Separation Techniques2476-1869Ommega Online PublishersNew Jersey, USA155510.15436/2476-1869.17.1555Research ArticleSeasonal Variation of Sargassum Muticum Biochemical Composition Determined by Fourier Transform Infra-Red SpectroscopySeasonal Variation of Sargassum Muticum Biochemical Composition Determined by Fourier Transform Infra-Red SpectroscopyLaurentVANDANJON 1Universit eacute de Nantes GEPEA-UMR CNRS 6144 F-44600 Saint-Nazaire France 2Universit eacute Bretagne Sud EA 3884 LBCM IUEM F-56000 Vannes France 3Diponegoro University Faculty of Fisheries and Marine Science Marine Science Department Semarang 50275 Indonesia 4Universit eacute de Bretagne Occidentale LEMAR-UMR CNRS IRD IFREMER 6539 F-29280 Plouzan eacute France Editor* E-mail: laurent.vandanjon@univ-ubs.fr
The authors have declared that no competing interests exist.
20172709201721JABST-17-RA-155526052017210920172017Creative Commons Attribution LicenseThis is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. nbsp emsp emsp Proliferation of the introduced brown macro alga Sargassum muticum is known as a natural and hard to control phenomenon occurring along the Atlantic coasts The phenomenon causes serious troubles for local ecosystems including the alteration of ecosystem structure the reduction in indigenous biodiversity and economic losses tourism aquaculture However despite the serious troubles caused by S muticum this species contains highly remarkable bioactive metabolites This macro alga is at present under-exploited and the valorization of its metabolites to give a positive value to this seaweed could be a solution of ecosystemic service Biorefinery process could be one solution to valorize S muticum Comprehensive knowledge concerning the biochemical composition of S muticum and the impact of environmental factors particularly seasons on its composition is a prerequisite before its valorization In this study the biochemical composition of S muticum was evaluated by using classic colorimetric methods based on chemical analysis and Fourier Transform Infra-Red spectrometry FTIR and was used as a rapid and safe method that could bring advantages in screening studies and a more comprehensive management and use of seaweed products Our results are globally in accordance notably for phenolic compounds showing the relevance of the use of infrared spectrometry Moreover based on the absorption bands of some specific and valuable compounds shown by FTIR there was a seasonal variation in the polysaccharides i e uronic acids and sulphated compounds together with phenolic contents of S muticum 10