Journal
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
Volume 53, Issue 22, Pages 8512-8518Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jf051294g
Keywords
Fragaria chiloensis; Chilean strawberry; E-cinnamic acid derivatives; free radical scavengers; antioxidants; anthocyanin
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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-alpha-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.
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