title: E-cinnamic acid derivatives and phenolics from Chilean strawberry fruits, Fragaria chiloensis ssp. chiloensis.
abstract: Three E-cinnamic acid glycosides, tryptophan, and cyanidin-3-O-beta-D-glucopyranoside were isolated from ripe fruits of the Chilean strawberry Fragaria chiloensis ssp. chiloensis. 1-O-E-Cinnamoyl-beta-D-xylopyranoside, 1-O-E-cinnamoyl-beta-D-rhamnopyranoside, and 1-O-E-cinnamoyl-alpha-xylofuranosyl-(1-->6)-beta-D-glucopyranose are reported for the first time. The cinnamic acid glycosides and aromatic compound patterns in F. chiloensis fruits were determined by high-performance liquid chromatography (HPLC). HPLC analyses of extracts showed that cyanidin-3-O-beta-D-glucopyranoside and free ellagic acid are present in achenes while the E-cinnamoyl derivatives and tryptophan were identified only in the thalamus. The free radical scavenging effect of the fruit extract can be associated with the anthocyanin content.
authors.affiliation: Laboratorio de Química de Productos Naturales, Instituto de Química de Recursos Naturales, Laboratorio de Cultivo Celular, Facultad de Ciencias de la Salud, Centro de Investigaciones en Biotecnología Silvoagrícola, Universidad de Talca, Talca, Chile.
authors.forename: José
authors.initials: J
authors.lastname: Cheel
authors.forename: Cristina
authors.initials: C
authors.lastname: Theoduloz
authors.forename: Jaime
authors.initials: J
authors.lastname: Rodríguez
authors.forename: Guillermo
authors.initials: G
authors.lastname: Saud
authors.forename: Peter D S
authors.initials: PD
authors.lastname: Caligari
authors.forename: Guillermo
authors.initials: G
authors.lastname: Schmeda-Hirschmann
mesh_terms: D000872:Anthocyanins / Q000032:analysis; D000975:Antioxidants; D002677:Chile; D002851:Chromatography, High Pressure Liquid; D002934:Cinnamates / Q000302:isolation & purification* / Q000494:pharmacology; D004912:Erythrocytes / Q000737:chemistry; D005419:Flavonoids / Q000032:analysis; D031985:Fragaria / Q000737:chemistry*; D016166:Free Radical Scavengers; D005638:Fruit / Q000737:chemistry*; D006027:Glycosides / Q000302:isolation & purification / Q000494:pharmacology; D006801:Humans; D015227:Lipid Peroxidation / Q000187:drug effects; D008055:Lipids / Q000097:blood; D010636:Phenols / Q000302:isolation & purification* / Q000494:pharmacology
chemical_list: D000872:Anthocyanins; D000975:Antioxidants; D002934:Cinnamates; D005419:Flavonoids; D016166:Free Radical Scavengers; D006027:Glycosides; D008055:Lipids; D010636:Phenols; C029010:cinnamic acid