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Rosa Seabra

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High Pressure Liquid Chromatography

Chemicals & Drugs

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Portugal

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TOP 3
P Guedes De Pinho; Rui F Gonçalves; Patrícia Valentão; David M. Pereira; Rosa M Seabra; Paula B Andrade; Mariana Sottomayor
Volatile composition of Catharanthus roseus (L.) G. Don using solid-phase microextraction and gas chromatography/mass spectrometry.
Carla Sousa; David M. Pereira; Patrícia Valentão; Federico Ferreres; José Pereira; Rosa M Seabra; Paula B Andrade
Pieris brassicae inhibits xanthine oxidase.
Federico Ferreres; Carla Sousa; David M. Pereira; Patrícia Valentão; Marcos Taveira; Anabela Martins; José Pereira; Rosa M Seabra; Paula B Andrade
Screening of antioxidant phenolic compounds produced by in vitro shoots of Brassica oleracea L. var. costata DC.

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All Publications

2009: P Guedes De Pinho; Rui F Gonçalves; Patrícia Valentão; David M. Pereira; Rosa M Seabra; Paula B Andrade; Mariana Sottomayor
Volatile composition of Catharanthus roseus (L.) G. Don using solid-phase microextraction and gas chromatography/mass spectrometry.
Journal of pharmaceutical and biomedical analysis 2009;49(3):674-85.
2009: Carla Sousa; David M. Pereira; Patrícia Valentão; Federico Ferreres; José Pereira; Rosa M Seabra; Paula B Andrade
Pieris brassicae inhibits xanthine oxidase.
Journal of agricultural and food chemistry 2009;57(6):2288-94.
2009: Federico Ferreres; Carla Sousa; David M. Pereira; Patrícia Valentão; Marcos Taveira; Anabela Martins; José Pereira; Rosa M Seabra; Paula B Andrade
Screening of antioxidant phenolic compounds produced by in vitro shoots of Brassica oleracea L. var. costata DC.
Combinatorial chemistry & high throughput screening 2009;12(3):230-40.
2009: Isabel F Almeida; Eduarda Fernandes; José L F C Lima; Patrícia Valentão; Paula B Andrade; Rosa M Seabra; P C Costa; M F Bahia
Oxygen and nitrogen reactive species are effectively scavenged by Eucalyptus globulus leaf water extract.
Journal of medicinal food 2009;12(1):175-83.
2008: Bárbara Ribeiro; Paula B Andrade; Branca M Silva; Paula Baptista; Rosa M Seabra; Patrícia Valentão
Comparative study on free amino acid composition of wild edible mushroom species.
Journal of agricultural and food chemistry 2008;56(22):10973-9.
2008: Federico Ferreres; David M. Pereira; Patrícia Valentão; Paula B Andrade; Rosa M Seabra; Mariana Sottomayor
New phenolic compounds and antioxidant potential of Catharanthus roseus.
Journal of agricultural and food chemistry 2008;56(21):9967-74.
2008: Luís Guerra; Clara Pereira; Paula B Andrade; M Angelo Rodrigues; Federico Ferreres; Paula Guedes de Pinho; Rosa M Seabra; Patrícia Valentão
Targeted metabolite analysis and antioxidant potential of Rumex induratus.
Journal of agricultural and food chemistry 2008;56(17):8184-94.
2008: Andreia P Oliveira; David M. Pereira; Paula B Andrade; Patrícia Valentão; Carla Sousa; José Pereira; Albino Bento; Manuel Angelo Rodrigues; Rosa M Seabra; Branca M Silva
Free amino acids of tronchuda cabbage (Brassica oleracea L. Var. costata DC): influence of leaf position (internal or external) and collection time.
Journal of agricultural and food chemistry 2008;56(13):5216-21.
2008: Bárbara Ribeiro; Paula B Andrade; Paula Baptista; Lillian Barros; Isabel C F R Ferreira; Rosa M Seabra; Patrícia Valentão
Leucopaxillus giganteus mycelium: effect of nitrogen source on organic acids and alkaloids.
Journal of agricultural and food chemistry 2008;56(12):4769-74.
2008: M S Dopico-García; A Fique; L Guerra; J M Afonso; O Pereira; Patrícia Valentão; Paula B Andrade; Rosa M Seabra
Principal components of phenolics to characterize red Vinho Verde grapes: anthocyanins or non-coloured compounds?
Talanta 2008;75(5):1190-202.
2008: Carla Sousa; David M. Pereira; José Pereira; Albino Bento; M Angelo Rodrigues; Sonia Dopico-García; Patrícia Valentão; Graciliana Luísa Lino Lopes; Federico Ferreres; Rosa M Seabra; Paula B Andrade
Multivariate analysis of tronchuda cabbage (Brassica oleracea L. var. costata DC) phenolics: influence of fertilizers.
Journal of agricultural and food chemistry 2008;56(6):2231-9.
2008: P Guedes de Pinho; Bárbara Ribeiro; Rui F Gonçalves; Paula Baptista; Patrícia Valentão; Rosa M Seabra; Paula B Andrade
Correlation between the pattern volatiles and the overall aroma of wild edible mushrooms.
Journal of agricultural and food chemistry 2008;56(5):1704-12.
2008: Federico Ferreres; Patrícia Valentão; José Pereira; Albino Bento; Alexandra Noites; Rosa M Seabra; Paula B Andrade
HPLC-DAD-MS/MS-ESI screening of phenolic compounds in Pieris brassicae L. Reared on Brassica rapa var. rapa L.
Journal of agricultural and food chemistry 2008;56(3):844-53.
2008: Isabel F Almeida; Patrícia Valentão; Paula B Andrade; Rosa M Seabra; Teresa M Pereira; M Helena Amaral; Paulo C Costa; M Fernanda Bahia
Oak leaf extract as topical antioxidant: free radical scavenging and iron chelating activities and in vivo skin irritation potential.
BioFactors (Oxford, England) 2008;33(4):267-79.
2008: Joana S Amaral; Patrícia Valentão; Paula B Andrade; Rui C Martins; Rosa M Seabra
Do cultivar, geographical location and crop season influence phenolic profile of walnut leaves?
Molecules (Basel, Switzerland) 2008;13(6):1321-32.
2007: Federico Ferreres; Carla Sousa; Patrícia Valentão; Paula B Andrade; Rosa M Seabra; Angel Gil-Izquierdo
New C-deoxyhexosyl flavones and antioxidant properties of Passiflora edulis leaf extract.
Journal of agricultural and food chemistry 2007;55(25):10187-93.
2007: M S Dopico-García; Patrícia Valentão; A Jagodziñska; J Klepczyñska; L Guerra; Paula B Andrade; Rosa M Seabra
Solid-phase extraction versus matrix solid-phase dispersion: Application to white grapes.
Talanta 2007;74(1):20-31.
2007: José Pereira; Ivo Oliveira; Anabela Sousa; Patrícia Valentão; Paula B Andrade; Isabel C F R Ferreira; Federico Ferreres; Albino Bento; Rosa M Seabra; Letícia M Estevinho
Walnut (Juglans regia L.) leaves: phenolic compounds, antibacterial activity and antioxidant potential of different cultivars.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association 2007;45(11):2287-95.
2007: Bárbara Ribeiro; Patrícia Valentão; Paula Baptista; Rosa M Seabra; Paula B Andrade
Phenolic compounds, organic acids profiles and antioxidative properties of beefsteak fungus (Fistulina hepatica).
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association 2007;45(10):1805-13.
2007: Andreia P Oliveira; José Pereira; Paula B Andrade; Patrícia Valentão; Rosa M Seabra; Branca M Silva
Phenolic profile of Cydonia oblonga Miller leaves.
Journal of agricultural and food chemistry 2007;55(19):7926-30.
2007: Carla Sousa; Graciliana Luísa Lino Lopes; David M. Pereira; Marcos Taveira; Patrícia Valentão; Rosa M Seabra; José Pereira; Paula Baptista; Federico Ferreres; Paula B Andrade
Screening of antioxidant compounds during sprouting of Brassica oleracea L. var. costata DC.
Combinatorial chemistry & high throughput screening 2007;10(5):377-86.
2007: Cristovao F Lima; Patricia C R Valentao; Paula B Andrade; Rosa M Seabra; Manuel Fernandes-Ferreira; Cristina Pereira-Wilson
Water and methanolic extracts of Salvia officinalis protect HepG2 cells from t-BHP induced oxidative damage.
Chemico-biological interactions 2007;167(2):107-15.
2007: Federico Ferreres; Carla Sousa; Patrícia Valentão; José Pereira; Rosa M Seabra; Paula B Andrade
Tronchuda cabbage flavonoids uptake by Pieris brassicae.
Phytochemistry 2007;68(3):361-7.
2007: M S Dopico-García; Patrícia Valentão; L Guerra; Paula B Andrade; Rosa M Seabra
Experimental design for extraction and quantification of phenolic compounds and organic acids in white "Vinho Verde" grapes.
Analytica chimica acta 2007;583(1):15-22.
2007: Ana Paula Pereira; Isabel C F R Ferreira; Filipa Marcelino; Patrícia Valentão; Paula B Andrade; Rosa M Seabra; Letícia M Estevinho; Albino Bento; José Pereira
Phenolic compounds and antimicrobial activity of olive (Olea europaea L. Cv. Cobrançosa) leaves.
Molecules (Basel, Switzerland) 2007;12(5):1153-62.
2006: Anabela Sousa; Isabel C F R Ferreira; Ricardo C Calhelha; Paula B Andrade; Patrícia Valentão; Rosa M Seabra; Letícia M Estevinho; Albino Bento; José Pereira
Phenolics and antimicrobial activity of traditional stoned table olives 'alcaparra'.
Bioorganic & medicinal chemistry 2006;14(24):8533-8.
2006: Bárbara Ribeiro; Joana Rangel; Patrícia Valentão; Paula Baptista; Rosa M Seabra; Paula B Andrade
Contents of carboxylic acids and two phenolics and antioxidant activity of dried portuguese wild edible mushrooms.
Journal of agricultural and food chemistry 2006;54(22):8530-7.
2006: José Pereira; Ana P G Pereira; Isabel C F R Ferreira; Patrícia Valentão; Paula B Andrade; Rosa M Seabra; Letícia M Estevinho; Albino Bento
Table olives from Portugal: phenolic compounds, antioxidant potential, and antimicrobial activity.
Journal of agricultural and food chemistry 2006;54(22):8425-31.
2006: Joana S Amaral; Susana Casal; M Rui Alves; Rosa M Seabra; Beatriz P P Oliveira
Tocopherol and tocotrienol content of hazelnut cultivars grown in portugal.
Journal of agricultural and food chemistry 2006;54(4):1329-36.
2006: Joana S Amaral; Susana Casal; Rosa M Seabra; Beatriz P P Oliveira
Effects of roasting on hazelnut lipids.
Journal of agricultural and food chemistry 2006;54(4):1315-21.
2006: Joana S Amaral; Sara C Cunha; Alberto Santos; M Rui Alves; Rosa M Seabra; Beatriz P P Oliveira
Influence of Cultivar and Environmental Conditions on the Triacylglycerol Profile of Hazelnut (Corylus avellana L.).
Journal of agricultural and food chemistry 2006;54(2):449-56.
2005: Joana S Amaral; Susana Casal; Duarte Torres; Rosa M Seabra; Beatriz P P Oliveira
Simultaneous determination of tocopherols and tocotrienols in hazelnuts by a normal phase liquid chromatographic method.
Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2005;21(12):1545-8.
2005: Carla Sousa; Patrícia Valentão; Joana Rangel; Graciliana Luísa Lino Lopes; José Pereira; Federico Ferreres; Rosa M Seabra; Paula B Andrade
Influence of two fertilization regimens on the amounts of organic acids and phenolic compounds of tronchuda cabbage (Brassica oleracea L. Var. costata DC).
Journal of agricultural and food chemistry 2005;53(23):9128-32.
2005: Federico Ferreres; Carla Sousa; Mulangu Justin; Patrícia Valentão; Paula B Andrade; Rafael Llorach; Alírio Rodrigues; Rosa M Seabra; Anabela Leitão
Characterisation of the phenolic profile of Boerhaavia diffusa L. by HPLC-PAD-MS/MS as a tool for quality control.
Phytochemical analysis : PCA 2005;16(6):451-8.
2005: Joana S Amaral; M Rui Alves; Rosa M Seabra; Beatriz P P Oliveira
Vitamin E composition of walnuts (Juglans regia L.): a 3-year comparative study of different cultivars.
Journal of agricultural and food chemistry 2005;53(13):5467-72.
2005: Patrícia Valentão; Paula B Andrade; Joana Rangel; Bárbara Ribeiro; Branca M Silva; Paula Baptista; Rosa M Seabra
Effect of the conservation procedure on the contents of phenolic compounds and organic acids in chanterelle (Cantharellus cibarius) mushroom.
Journal of agricultural and food chemistry 2005;53(12):4925-31.
2005: Patrícia Valentão; Graciliana Luísa Lino Lopes; Miguel Valente; Paula Barbosa; Paula B Andrade; Branca M Silva; Paula Baptista; Rosa M Seabra
Quantitation of nine organic acids in wild mushrooms.
Journal of agricultural and food chemistry 2005;53(9):3626-30.
2005: Federico Ferreres; Patrícia Valentão; Rafael Llorach; Cristina Pinheiro; Lígia Cardoso; José Pereira; Carla Sousa; Rosa M Seabra; Paula B Andrade
Phenolic compounds in external leaves of tronchuda cabbage (Brassica oleracea L. var. costata DC).
Journal of agricultural and food chemistry 2005;53(8):2901-7.
2005: Branca M Silva; Paula B Andrade; Federico Ferreres; Rosa M Seabra; M Beatriz P P Oliveira; Margarida A Ferreira
Composition of quince (Cydonia oblonga Miller) seeds: phenolics, organic acids and free amino acids.
Natural product research 2005;19(3):275-81.
2005: Cristovao F Lima; Paula B Andrade; Rosa M Seabra; Manuel Fernandes-Ferreira; Cristina Pereira-Wilson
The drinking of a Salvia officinalis infusion improves liver antioxidant status in mice and rats.
Journal of ethnopharmacology 2005;97(2):383-9.
2005: Julieta Meirinhos; Branca M Silva; Patrícia Valentão; Rosa M Seabra; José Pereira; Alberto Dias; Paula B Andrade; Federico Ferreres
Analysis and quantification of flavonoidic compounds from Portuguese olive (Olea europaea L.) leaf cultivars.
Natural product research 2005;19(2):189-95.
2005: Joana S Amaral; Federico Ferreres; Paula B Andrade; Patrícia Valentão; Cristina Pinheiro; Alberto Santos; Rosa M Seabra
Phenolic profile of hazelnut (Corylus avellana L.) leaves cultivars grown in Portugal.
Natural product research 2005;19(2):157-63.
2005: Branca M Silva; Paula B Andrade; Rui C Martins; Patrícia Valentão; Federico Ferreres; Rosa M Seabra; Margarida A Ferreira
Quince (Cydonia oblonga miller) fruit characterization using principal component analysis.
Journal of agricultural and food chemistry 2005;53(1):111-22.
2004: Joana S Amaral; Sara C Cunha; M Rui Alves; José Pereira; Rosa M Seabra; Beatriz P P Oliveira
Triacylglycerol composition of walnut (Juglans regia L.) cultivars: characterization by HPLC-ELSD and chemometrics.
Journal of agricultural and food chemistry 2004;52(26):7964-9.
2004: Patrícia Valentão; Márcia Carvalho; Félix Carvalho; Eduarda Fernandes; Ricardo Neves; M Lourdes Pereira; Paula B Andrade; Rosa M Seabra; Maria Lourdes Bastos
Hypericum androsaemum infusion increases tert-butyl hydroperoxide-induced mice hepatotoxicity in vivo.
Journal of ethnopharmacology 2004;94(2-3):345-51.
2004: Branca M Silva; Paula B Andrade; Patrícia Valentão; Federico Ferreres; Rosa M Seabra; Margarida A Ferreira
Quince (Cydonia oblonga Miller) fruit (pulp, peel, and seed) and Jam: antioxidant activity.
Journal of agricultural and food chemistry 2004;52(15):4705-12.
2004: Patrícia Valentão; Márcia Carvalho; Eduarda Fernandes; Félix Carvalho; Paula B Andrade; Rosa M Seabra; Maria de Lourdes Bastos
Protective activity of Hypericum androsaemum infusion against tert-butyl hydroperoxide-induced oxidative damage in isolated rat hepatocytes.
Journal of ethnopharmacology 2004;92(1):79-84.
2004: Branca M Silva; Susana Casal; Paula B Andrade; Rosa M Seabra; M Beatriz P P Oliveira; Margarida A Ferreira
Free amino acid composition of quince (Cydonia oblonga Miller) fruit (pulp and peel) and jam.
Journal of agricultural and food chemistry 2004;52(5):1201-6.
2003: Joana S Amaral; Susana Casal; José Pereira; Rosa M Seabra; Beatriz P P Oliveira
Determination of sterol and fatty acid compositions, oxidative stability, and nutritional value of six walnut (Juglans regia L.) cultivars grown in Portugal.
Journal of agricultural and food chemistry 2003;51(26):7698-702.
2003: Federico Ferreres; Branca M Silva; Paula B Andrade; Rosa M Seabra; Margarida A Ferreira
Approach to the study of C-glycosyl flavones by ion trap HPLC-PAD-ESI/MS/MS: application to seeds of quince (Cydonia oblonga).
Phytochemical analysis : PCA 2003;14(6):352-9.
2003: Paula C Santos-Gomes; Rosa M Seabra; Paula B Andrade; Manuel Fernandes-Ferreira
Determination of phenolic antioxidant compounds produced by calli and cell suspensions of sage (Salvia officinalis L.).
Journal of plant physiology 2003;160(9):1025-32.
2003: Branca M Silva; Susana Casal; Paula B Andrade; Rosa M Seabra; M Beatriz P P Oliveira; Margarida A Ferreira
Development and evaluation of a GC/FID method for the analysis of free amino acids in quince fruit and jam.
Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2003;19(9):1285-90.
2003: Patrícia Valentão; Alberto Dias; Manuel Ferreira; Branca M Silva; Paula B Andrade; Maria Lourdes Bastos; Rosa M Seabra
Variability in phenolic composition of Hypericum androsaemum.
Natural product research 2003;17(2):135-40.
2003: Patrícia Valentão; Eduarda Fernandes; Félix Carvalho; Paula B Andrade; Rosa M Seabra; Maria Lourdes Bastos
Hydroxyl radical and hypochlorous acid scavenging activity of small centaury (Centaurium erythraea) infusion. A comparative study with green tea (Camellia sinensis).
Phytomedicine : international journal of phytotherapy and phytopharmacology 2003;10(6-7):517-22.
2002: Patrícia Valentão; Eduarda Fernandes; Félix Carvalho; Paula B Andrade; Rosa M Seabra; Maria de Lourdes Basto
Studies on the antioxidant activity of Lippia citriodora infusion: scavenging effect on superoxide radical, hydroxyl radical and hypochlorous acid.
Biological & pharmaceutical bulletin 2002;25(10):1324-7.
2002: Patrícia Valentão; Eduarda Fernandes; Félix Carvalho; Paula B Andrade; Rosa M Seabra; Maria de Lourdes Bastos
Antioxidant activity of Hypericum androsaemum infusion: scavenging activity against superoxide radical, hydroxyl radical and hypochlorous acid.
Biological & pharmaceutical bulletin 2002;25(10):1320-3.
2002: Patrícia Valentão; Eduarda Fernandes; Félix Carvalho; Paula B Andrade; Rosa M Seabra; Maria Lourdes Bastos
Antioxidative properties of cardoon (Cynara cardunculus L.) infusion against superoxide radical, hydroxyl radical, and hypochlorous acid.
Journal of agricultural and food chemistry 2002;50(17):4989-93.
2002: Branca M Silva; Paula B Andrade; Federico Ferreres; Ana L Domingues; Rosa M Seabra; Margarida A Ferreira
Phenolic profile of quince fruit (Cydonia oblonga Miller) (pulp and peel).
Journal of agricultural and food chemistry 2002;50(16):4615-8.
2002: Branca M Silva; Paula B Andrade; Gisela C Mendes; Rosa M Seabra; Margarida A Ferreira
Study of the organic acids composition of quince (Cydonia oblonga Miller) fruit and jam.
Journal of agricultural and food chemistry 2002;50(8):2313-7.
2002: Patrícia Valentão; Paula B Andrade; Eurico Silva; Ana Vicente; Henrique Santos; Maria Lourdes Bastos; Rosa M Seabra
Methoxylated xanthones in the quality control of small centaury (Centaurium erythraea) flowering tops.
Journal of agricultural and food chemistry 2002;50(3):460-3.
2001: Patrícia Valentão; Eduarda Fernandes; Félix Carvalho; Paula B Andrade; Rosa M Seabra; Maria Lourdes Bastos
Antioxidant activity of Centaurium erythraea infusion evidenced by its superoxide radical scavenging and xanthine oxidase inhibitory activity.
Journal of agricultural and food chemistry 2001;49(7):3476-9.
2001: Paula B Andrade; B M Oliveira; Rosa M Seabra; Margarida A Ferreira; Federico Ferreres; C García-Viguera
Analysis of phenolic compounds in Spanish Albrariño and Portuguese Alvarinho and Loureiro wines by capillary zone electrophoresis and high-performance liquid chromatography.
Electrophoresis 2001;22(8):1568-72.
2000: Filipe Miguel Areias; Patrícia Valentão; Paula B Andrade; Federico Ferreres; Rosa M Seabra
Flavonoids and phenolic acids of sage: influence of some agricultural factors.
Journal of agricultural and food chemistry 2000;48(12):6081-4.
2000: Branca M Silva; Paula B Andrade; G C Mendes; Patrícia Valentão; Rosa M Seabra; Margarida A Ferreira
Analysis of phenolic compounds in the evaluation of commercial quince jam authenticity.
Journal of agricultural and food chemistry 2000;48(7):2853-7.
1999: Patrícia Valentão; Paula B Andrade; Filipe Miguel Areias; Federico Ferreres; Rosa M Seabra
Analysis of vervain flavonoids by HPLC/Diode array detector method. Its application to quality control.
Journal of agricultural and food chemistry 1999;47(11):4579-82.