P. Andrade

Publications232
h-index60
Citations10,107
Highly Influential Citations434
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Honey from Luso region (Portugal): physicochemical characteristics and mineral contents.
Abstract This work was conducted to evaluate the quality of 38 honey samples from Luso region (Portugal), and to study the relation between Eucalyptus pollen and chemical properties of honey. Mean… Expand
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Phenolic profiles of Portuguese olive fruits (Olea europaea L.): Influences of cultivar and geographical origin
Abstract The phenolic compounds present in 29 samples of olive fruits were analysed by reversed-phase HPLC/DAD and/or HPLC-DAD/ESI-MS/MS. All samples were collected during the normal picking period… Expand
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Characterization of C-glycosyl flavones O-glycosylated by liquid chromatography-tandem mass spectrometry.
Fifty three O-glycosyl-C-glycosyl flavones with O-glycosylation on phenolic hydroxyl or on the C-glycosyl residue or combination of both forms have been studied by liquid chromatography-UV diode… Expand
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Approach to the study of C-glycosyl flavones by ion trap HPLC-PAD-ESI/MS/MS: application to seeds of quince (Cydonia oblonga).
Ion trap HPLC-PAD-ESI/MS/MS has been used to study C-glycosyl flavones in quince seeds. Comparative analysis of the ions [(M-H)-60]-, [(M-H)-90]- and [(M-H)-120]- from 6-C- and 8-C-glycosyl flavone… Expand
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Phenolic compounds and antimicrobial activity of olive (Olea europaea L. Cv. Cobrançosa) leaves.
We report the determination of phenolic compounds in olive leaves by reversed-phase HPLC/DAD, and the evaluation of their in vitro activity against several microorganisms that may be causal agents of… Expand
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Bauhinia forficata Link authenticity using flavonoids profile: relation with their biological properties.
HPLC-DAD-ESI/MS(n) was used to ascertain the authenticity of two certified and two commercial Bauhinia forficata Link samples. Different flavonoids profiles were obtained, involving 39 compounds.… Expand
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Phlorotannin Extracts from Fucales Characterized by HPLC-DAD-ESI-MSn: Approaches to Hyaluronidase Inhibitory Capacity and Antioxidant Properties
Purified phlorotannin extracts from four brown seaweeds (Cystoseira nodicaulis (Withering) M. Roberts, Cystoseira tamariscifolia (Hudson) Papenfuss, Cystoseira usneoides (Linnaeus) M. Roberts and… Expand
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Quince (Cydonia oblonga Miller) fruit (pulp, peel, and seed) and Jam: antioxidant activity.
To study the antioxidant activity of quince fruit (pulp, peel, and seed) and jam, methanolic extracts were prepared. Each extract was fractionated into a phenolic fraction and an organic acid… Expand
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Walnut (Juglans regia L.) leaves: phenolic compounds, antibacterial activity and antioxidant potential of different cultivars.
Different cultivars of walnut (Juglans regia L.) leaves (Cv. Lara, Franquette, Mayette, Marbot, Mellanaise and Parisienne) grown in Portugal, were investigated in what concerns phenolic compounds and… Expand
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Phytochemical characterization and radical scavenging activity of Portulaca oleraceae L. leaves and stems
Abstract The present work aimed to proceed to the phytochemical characterization of purslane (Portulaca oleracea L.) and study of its antioxidant activity. Different samples were analyzed for their… Expand
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