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Honey from Luso region (Portugal): physicochemical characteristics and mineral contents.
Phenolic profiles of Portuguese olive fruits (Olea europaea L.): Influences of cultivar and geographical origin
Characterization of C-glycosyl flavones O-glycosylated by liquid chromatography-tandem mass spectrometry.
Approach to the study of C-glycosyl flavones by ion trap HPLC-PAD-ESI/MS/MS: application to seeds of quince (Cydonia oblonga).
- F. Ferreres, B. Silva, P. Andrade, R. Seabra, M. Ferreira
- Chemistry, BiologyPhytochemical analysis : PCA
- 1 November 2003
Ion trap HPLC-PAD-ESI/MS/MS has been used to study C-glycosyl flavones in quince seeds and deductions were made about the nature of the sugar units and the positions of C- Glycosylation.
Phenolics: From Chemistry to Biology
In recent years, few classes of natural products have received as much attention as phenolics and polyphenols. This special issue of Molecules, “Phenolics and Polyphenolics”, is a remarkable…
Influence of solvent on the antioxidant and antimicrobial properties of walnut (Juglans regia L.) green husk extracts
Quince (Cydonia oblonga Miller) fruit (pulp, peel, and seed) and Jam: antioxidant activity.
- B. Silva, P. Andrade, P. Valentão, F. Ferreres, R. Seabra, M. Ferreira
- Chemistry, MedicineJournal of agricultural and food chemistry
- 3 July 2004
The evaluation of the antioxidant activity of methanolic extracts showed that peel extract was the one presenting the highest antioxidant capacity, which seems to indicate that the phenolic fraction gives a higher contribution for the antioxidant potential of quince fruit and jam.
Phenolic compounds and antimicrobial activity of olive (Olea europaea L. Cv. Cobrançosa) leaves.
At low concentrations olive leaves extracts showed an unusual combined antibacterial and antifungal action, which suggest their great potential as nutraceuticals, particularly as a source of phenolic compounds.
Walnut (Juglans regia L.) leaves: phenolic compounds, antibacterial activity and antioxidant potential of different cultivars.
Phlorotannin Extracts from Fucales Characterized by HPLC-DAD-ESI-MSn: Approaches to Hyaluronidase Inhibitory Capacity and Antioxidant Properties
Results show that purified phlorotannin extracts have potent capabilities for preventing and slowing down the skin aging process, which is mainly associated with free radical damage and with the reduction of hyaluronic acid concentration, characteristic of the process.