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Impact of Light Intensity on Antioxidant Activity of Tropical Microalgae ArchiMer
Coulombier, Noémie; Nicolau, Elodie; Le Déan, Loic; Antheaume, Cyril; Jauffrais, Thierry; Lebouvier, Nicolas.
Twelve microalgae species isolated in tropical lagoons of New Caledonia were screened as a new source of antioxidants. Microalgae were cultivated at two light intensities to investigate their influence on antioxidant capacity. To assess antioxidant property of microalgae extracts, four assays with different modes of action were used: 1,1-diphenyl-2-picrylhydrazyl (DPPH), 2,2’-azinobis (3-éthylbenzothiazoline-6-sulphonique) (ABTS), oxygen radical absorbance capacity (ORAC), and thiobabituric acid reactive substances (TBARS). This screening was coupled to pigment analysis to link antioxidant activity and carotenoid content. The results showed that none of the microalgae studied can scavenge DPPH and ABTS radicals, but Chaetoceros sp., Nephroselmis sp., and...
Tipo: Text Palavras-chave: Nephroselmis; Light intensity; In vitro antioxidant activity; Siphonaxanthin; Carotenoid; Bioactive compounds.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00609/72152/70900.pdf
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Seasonal occurrence of Dinophysis sp. along the French coast between 1983 and 1987 ArchiMer
Lassus, Patrick; Bardouil, Michele; Berthomé, Jean-paul; Maggi, Pierre; Truquet, Philippe; Le Déan, Loic.
On the basis of hydrological and biological data collected between 1983 and 1987 along the French coast, and especially in the southern approaches to Brittany. it has been possible to compare different parameters in an attempt to explain the seasonal variations of a toxic dinoflagellate: Dinophysis sp. speveral species were identified and their seasonal distribution patterns are described. The origin of the blooms, from either coastal endemic or offshore populations, is considered
Tipo: Text Palavras-chave: Dinophysis; Distribution saisonnière; Côtes françaises; Dinophysis; Seasonal distribution; French coast.
Ano: 1988 URL: https://archimer.ifremer.fr/doc/00189/30067/28555.pdf
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The diurnal vertical migrations of Dinophysis acuminata in an outdoor tank at Antifer (Normandy, France) ArchiMer
Lassus, Patrick; Proniewski, Frédéric; Pigeon, Cyrille; Veret, Laurent; Le Déan, Loic; Bardouil, Michele; Truquet, Philippe.
Tipo: Text
Ano: 1990 URL: http://archimer.ifremer.fr/doc/00189/30070/28558.pdf
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