Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/70581
Campo DC Valoridioma
dc.contributor.authorVega, Juliaen_US
dc.contributor.authorÁlvarez-Gómez, Félixen_US
dc.contributor.authorGüenaga Unzetabarrenechea, Leyreen_US
dc.contributor.authorFigueroa, Félixen_US
dc.contributor.authorGómez-Pinchetti, Juan Luisen_US
dc.date.accessioned2020-02-29T06:04:03Z-
dc.date.available2020-02-29T06:04:03Z-
dc.date.issued2020en_US
dc.identifier.issn0044-8486en_US
dc.identifier.otherScopus-
dc.identifier.otherWoS-
dc.identifier.urihttp://hdl.handle.net/10553/70581-
dc.description.abstractMethanolic and hydroethanolic extracts of ten common species of marine macroalgae (5 Rhodophyta, 2 Ochrophyta and 3 Chlorophyta) of the intertidal system of the Canary Islands were screened to evaluate their in vitro antioxidant activity by DPPH radical scavenging activity and reducing power. The concentration of bioactives as pigments and phenolic compounds was also determined. Wild-collected algae and these cultivated in an integrated multitrophic aquaculture (IMTA) system during one month, were analyzed. The highest antioxidant activity was observed in Halopithys incurva, Fucus spiralis and Treptacantha abies-marina. The hydroethanolic extracts exhibited higher reducing power than methanolic extracts in most species. However, the differences in DPPH scavenging activity between solvents were not so high, and only the hydroethanolic extracts of some species showed antioxidant activity. The highest concentration of polyphenols was reached in H. incurva, T. abies-marina and F. spiralis. However, compared to collected seaweeds, the percentage of these compounds was lower in cultivated samples. The highest concentrations of chlorophyll a and carotenoids were found in T. abies-marina, Codium intertextum and F. spiralis. In red algae, the phycoerythrin (PE) content was higher in H. incurva, followed by P. capillacea. After culture, pigment content increased in most species, depending on the assimilation capacity of the ammonium from fishpond effluents. C/N ratio in samples collected in the field was high, indicating nitrogen limitation. After cultivation under high nitrogen availability (fishpond effluents), the ratio decreased in all species, especially in C. intertextum, F. spiralis and H. incurva, by the accumaltion of N-compounds. Pearson coefficient only showed significant correlations between the reducing power and some bioactive compounds, particularly polyphenols and PE. In conclusion, culture under IMTA conditions changed the biochemical composition of algae. The antioxidant activity did not decrease after culture in several species, despite the reduction of phenolic compounds, probably due to the benefits of the high N availability in the IMTA.en_US
dc.languageengen_US
dc.relation.ispartofAquacultureen_US
dc.sourceAquaculture [ISSN 0044-8486], v. 522, 735088en_US
dc.subject241707 Algología (ficología)en_US
dc.subject.otherAntioxidant Activity-
dc.subject.otherImta-
dc.subject.otherMacroalgae-
dc.subject.otherPigments-
dc.subject.otherPolyphenols-
dc.subject.otherAmino-Acids-
dc.subject.otherPhotosynthetic Pigments-
dc.subject.otherPolyphenolic Compounds-
dc.subject.otherOxidative Stress-
dc.subject.otherRed Macroalgae-
dc.subject.otherBrown Seaweeds-
dc.subject.otherUlva-Lactuca-
dc.subject.otherNitrogen-
dc.subject.otherLight-
dc.titleAntioxidant activity of extracts from marine macroalgae, wild-collected and cultivated, in an integrated multi-trophic aquaculture systemen_US
dc.typeinfo:eu-repo/semantics/Articleen_US
dc.typeArticleen_US
dc.identifier.doi10.1016/j.aquaculture.2020.735088en_US
dc.identifier.scopus85079605658-
dc.identifier.isi000522956800002-
dc.contributor.authorscopusid57215009108-
dc.contributor.authorscopusid57190214697-
dc.contributor.authorscopusid54580901500-
dc.contributor.authorscopusid7102739746-
dc.contributor.authorscopusid56062895900-
dc.identifier.eissn1873-5622-
dc.relation.volume522en_US
dc.investigacionCiencias-
dc.type2Artículoen_US
dc.contributor.daisngid35396243-
dc.contributor.daisngid6955433-
dc.contributor.daisngid20652092-
dc.contributor.daisngid76079-
dc.contributor.daisngid35399905-
dc.description.numberofpages10en_US
dc.utils.revision-
dc.contributor.wosstandardWOS:Vega, J-
dc.contributor.wosstandardWOS:Alvarez-Gomez, F-
dc.contributor.wosstandardWOS:Guenaga, L-
dc.contributor.wosstandardWOS:Figueroa, FL-
dc.contributor.wosstandardWOS:Gomez-Pinchetti, JL-
dc.date.coverdateMayo 2020en_US
dc.identifier.ulpgces
dc.description.sjr1,066
dc.description.jcr4,242
dc.description.sjrqQ1
dc.description.jcrqQ1
dc.description.scieSCIE
item.grantfulltextnone-
item.fulltextSin texto completo-
crisitem.author.deptGIR IOCAG: Oceanografía Biológica y Algología Aplicada-
crisitem.author.deptIU de Oceanografía y Cambio Global-
crisitem.author.deptDepartamento de Biología-
crisitem.author.orcid0000-0003-4668-0462-
crisitem.author.parentorgIU de Oceanografía y Cambio Global-
crisitem.author.fullNameGómez Pinchetti, Juan Luis-
Colección:Artículos
Vista resumida

Google ScholarTM

Verifica

Altmetric


Comparte



Exporta metadatos



Los elementos en ULPGC accedaCRIS están protegidos por derechos de autor con todos los derechos reservados, a menos que se indique lo contrario.