In vivoSkin Irritation Potential of aCastanea sativa(Chestnut) Leaf Extract, a Putative Natural Antioxidant for Topical Application

Autor: Isabel Almeida, M. Helena Amaral, Paulo Costa, M. Fernanda Bahia, Rosa M. Seabra, Patrícia Valentão, Teresa Pereira, Paula B. Andrade

Publikováno v: Basic & Clinical Pharmacology & Toxicology. 103:461-467

Topical application of natural antioxidants has proven to be effective in protecting the skin against ultraviolet- mediated oxidative damage and provides a straightforward way to strengthen the endogenous protection system. However, natural products

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::831bb1bba79fdebc80fc4319c831c08e
https://doi.org/10.1111/j.1742-7843.2008.00301.x

Targeted Metabolite Analysis and Antioxidant Potential of Rumex induratus

Autor: Patrícia Valentão, Luis M. Guerra, M. Angelo Rodrigues, Clara Pereira, Federico Ferreres, Rosa M. Seabra, Paula B. Andrade, Paula Guedes de Pinho

Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Digital.CSIC. Repositorio Institucional del CSIC
instname

11 pages, 13 figures, 3 tables.
Targeted metabolite analysis of aqueous extract of Rumex induratus leaves, in terms of phenolic compounds and organic acids, and the study of its antioxidant activity against the DPPH• radical, a reactive oxygen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f116f11ac4607bdd192ad419a8a687d
https://doi.org/10.1021/jf801385z

Do Cultivar, Geographical Location and Crop Season Influence Phenolic Profile of Walnut Leaves?

Autor: Rui C. Martins, Joana S. Amaral, Patrícia Valentão, Paula B. Andrade, Rosa M. Seabra

Publikováno v: Molecules, Vol 13, Iss 6, Pp 1321-1332 (2008)
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Molecules
Molecules; Volume 13; Issue 6; Pages: 1321-1332

Walnut leaves from nine different cultivars (Arco, Franquette, Hartley, Lara, Marbot, Mayette, Meylannaise, Parisienne and Rego) were studied for their phenolic compounds. Samples were harvested along three consecutive years, at two different geograp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12aa7405b50c90fef0dc41924ba3e025
http://www.mdpi.com/1420-3049/13/6/1321/

Oak leaf extract as topical antioxidant: Free radical scavenging and iron chelating activities andin vivoskin irritation potential

Autor: Isabel Almeida, Teresa Pereira, Patriacia Valentão, Paula B. Andrade, Paulo Costa, Rosa M. Seabra, M. Fernanda Bahia, M. Helena Amaral

Publikováno v: BioFactors. 33:267-279

The topical application of antioxidants may be beneficial for the protection of the skin against UV damage. An extract of Quercus robur leaves was prepared and evaluated considering its putative application as topical antioxidant. The solvent and ext

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5410cbe84330e7455344170030a8a602
https://doi.org/10.1002/biof.5520330403

HPLC Determination of Free Amino Acids Profile of Dão Red Wine: Effect of Dekkera bruxellensis Contamination

Autor: Martha E. Trujillo, Paula B. Andrade, Branca M. Silva, Encarnación Velázquez, Luís R. Silva, Rosa M. Seabra, Patrícia Valentão

Publikováno v: Journal of Liquid Chromatography & Related Technologies. 30:1371-1383

A reversed‐phase HPLC/UV‐Vis methodology for determination of twenty free amino acids in Dao red wine is described. The sample preparation was simple, involving only a pre‐column derivatization with dabsyl chloride. The HPLC/UV‐Vis procedure

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::acd301bd83cda8a56d4a1e5ca262922f
https://doi.org/10.1080/10826070701276630