FN Archimer Export Format
PT J
TI Impact of Light Intensity on Antioxidant Activity of Tropical Microalgae
BT 
AF Coulombier, Noémie
   Nicolau, Elodie
   Le Déan, Loic
   Antheaume, Cyril
   Jauffrais, Thierry
   Lebouvier, Nicolas
AS 1:1;2:2;3:3;4:4;5:3;6:4;
FF 1:;2:PDG-RBE-BRM-LPBA;3:PDG-RBE-LEADNC;4:;5:PDG-RBE-LEADNC;6:;
C1 ADECAL Technopole, 1 bis rue Berthelot, 98846 Noumea, New Caledonia
   Ifremer, RBE/BRM/PBA, Rue de l’île d’Yeu, 44311 Nantes, France
   Ifremer, UMR 9220 ENTROPIE, RBE/LEAD, 101 Promenade Roger Laroque, 98897 Noumea, New Caledonia;
   ISEA, EA7484, Université de Nouvelle Calédonie, Campus de Nouville, 98851 Nouméa, New Caledonia
C2 ADECAL TECHNOPOLE, FRANCE
   IFREMER, FRANCE
   IFREMER, FRANCE
   UNIV NOUVELLE CALEDONIE, FRANCE
SI NANTES
   NOUMEA
SE PDG-RBE-BRM-LPBA
   PDG-RBE-LEADNC
UM ENTROPIE
IN WOS Ifremer UPR
   WOS Ifremer UMR
   DOAJ
   copubli-france
   copubli-univ-france
IF 1.103
TC 29
UR https://archimer.ifremer.fr/doc/00609/72152/70900.pdf
   https://archimer.ifremer.fr/doc/00609/72152/70901.pdf
LA English
DT Article
DE ;nephroselmis;light intensity;in vitro antioxidant activity;siphonaxanthin;carotenoid;bioactive compounds
AB 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 Nitzschia A sp. have the capacity to scavenge peroxyl radical (ORAC) and Tetraselmis sp., Nitzschia A sp., and Nephroselmis sp. can inhibit lipid peroxidation (TBARS). Carotenoid composition is typical of the studied microalgae and highlight the siphonaxanthin, detected in Nephroselmis sp., as a pigment of interest. It was found that xanthophylls were the major contributors to the peroxyl radical scavenging capacity measured with ORAC assay, but there was no link between carotenoids and inhibition of lipid peroxidation measured with TBARS assay. In addition, the results showed that light intensity has a strong influence on antioxidant capacity of microalgae: Overall, antioxidant activities measured with ORAC assay are better in high light intensity whereas antioxidant activities measured with TBARS assay are better in low light intensity. It suggests that different antioxidant compounds production is related to light intensity. 
PY 2020
PD FEB
SO Marine Drugs
SN 1660-3397
PU MDPI AG
VL 18
IS 2
UT 000518664600053
DI 10.3390/md18020122
ID 72152
ER

EF