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dc.contributor.authorRuiz Domínguez, María del Carmen
dc.contributor.authorEspinosa, Carolina
dc.contributor.authorParedes, Adrián
dc.contributor.authorPalma, Jenifer
dc.contributor.authorJaime, Carolina
dc.contributor.authorVílchez Lobato, Carlos 
dc.contributor.authorCerezal, Pedro
dc.identifier.citationRuiz Domínguez, M. C., Espinosa, C., Paredes, A., Palma, J., Jaime, C., Vílchez Lobato, C., Cerezal, P. (2019). Determining the Potential of Haematococcus pluvialis Oleoresin as a Rich Source of Antioxidants. Molecules, 24(22), 4073. DOI:
dc.description.abstractHaematococcus pluvialis is known to be a natural source of antioxidants for numerous applications. In this study, an oleoresin rich in carotenoids extracted by supercritical CO2 treatment of H. pluvialis was extensively characterized for its antioxidant capacity. Carotenoid content, fatty acid profile, total phenol content, antioxidant capacity, and viscosity of the oleoresin were determined with the aim of ascertaining the potential of the oleoresin in terms of its antioxidant content for food applications. The oleoresin contained 96.22 mg/g of total astaxanthin (which includes free astaxanthin and astaxanthin esters) and mostly included unsaturated fatty acids (~78% of total fatty acids). High total phenol content and ferric reducing antioxidant potential indicated high antioxidant capacity, but oxygen radical absorbance capacity was lower compared to the oleoresin samples obtained from other species. The oleoresin was a non-Newtonian fluid since it had shear-thinning (pseudoplastic) and shear-thickening (dilatant) flow. Therefore, the H. pluvialis oleoresin is a potential alternative in developing functional ingredients for designing healthy food products. To the best of our knowledge, this is the first study that has reported an extensive characterization of the antioxidant properties of a microalgal oleoresin obtained by means of supercritical CO2 fluid extraction.es_ES
dc.description.sponsorshipThis research was financed by two projects with public funds of Chile, grants PAI-79160037 andVIU-FONDEF 15E0082 (CONICYT, Chile).
dc.relation.isversionofPublisher’s versión
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.subject.otherHaematococcus pluvialises_ES
dc.subject.otherAntioxidant capacityes_ES
dc.subject.otherSupercritical fluid extractiones_ES
dc.subject.otherPhenol contentes_ES
dc.titleDetermining the Potential of Haematococcus pluvialis Oleoresin as a Rich Source of Antioxidantses_ES

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