Publication
Antioxidant activity of macroalgae from the Azores
| dc.contributor.author | Paiva, Lisete S. | |
| dc.contributor.author | Patarra, Rita F. | |
| dc.contributor.author | Neto, Ana I. | |
| dc.contributor.author | Lima, Elisabete M. C. | |
| dc.contributor.author | Baptista, José A. B. | |
| dc.date.accessioned | 2012-07-05T15:15:25Z | |
| dc.date.available | 2012-07-05T15:15:25Z | |
| dc.date.issued | 2012 | |
| dc.description.abstract | Free radical scavenging activity (FRSA) was studied to determine the antioxidant activity of 8 common macroalgae species found in the Azores. Species under study were Porphyra sp., Osmundea pinnatifida, Pterocladiella capillacea, Sphaerococcus coronopifolius and Gelidium microdon, from Rhodophyta; Ulva compressa and Chaetomorpha pachynema, from Chlorophyta and Fucus spiralis from Phaeophyta.The antioxidant activity was evaluated in methanolic extract by a decolourisation solution test of 2,2-diphenyl-1-picrylhydrazyl (DPPH), used as a stable radical. The methanolic extracts were obtained from dried biomass by sequential extractions, attaining a final concentration of 2 mg.mL-1. The FRSA values ranged from 19.54% for S. coronopifolius to 60.05% for F. spiralis with standard deviation (SD) varying between 1.41% and 6.80%. Results indicated that the studied seaweeds are a very promising source of biological active compounds with antioxidante properties. The seaweeds were collected in the Azorean islands where seawater pollution levels are low. Consequently, these seaweeds represent a valuable and good source of antioxidante material with superior beneficial effects on human health. | por |
| dc.identifier.citation | "ARQUIPÉLAGO. Life and Marine Sciences". ISSN 0873-4704. Nº 29 (2012): 1-6 | por |
| dc.identifier.issn | 0873-4704 | |
| dc.identifier.uri | http://hdl.handle.net/10400.3/1435 | |
| dc.language.iso | eng | por |
| dc.peerreviewed | yes | por |
| dc.publisher | Universidade dos Açores | por |
| dc.relation.ispartofseries | Ciências Biológicas e Marinhas = Life and Marine Sciences;29 | |
| dc.subject | DPPH | por |
| dc.subject | Functional Food | por |
| dc.subject | Macroalgae Screening | por |
| dc.subject | Radical Scavenging Activity | por |
| dc.title | Antioxidant activity of macroalgae from the Azores | por |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.conferencePlace | Ponta Delgada | por |
| oaire.citation.endPage | 6 | por |
| oaire.citation.startPage | 1 | por |
| oaire.citation.title | ARQUIPÉLAGO. Life and Marine Sciences | por |
| rcaap.rights | openAccess | por |
| rcaap.type | article | por |