Journal
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
Volume 59, Issue 23, Pages 12598-12604Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jf203965j
Keywords
strawberry; ripe fruits; Fragaria species; phenolic acid derivatives; flavonols; proanthocyanidins; anthocyanins
Funding
- MICINN, Spain [BIO2010-15630, HA2007-0005]
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Polyphenolics are important secondary metabolites in strawberry as they fulfill a wide variety of physiological functions and are beneficial to human health. Seventeen structurally well-defined phenolic compounds including phenylpropanoids, flavonols, flavan-3-ols, and anthocyanins were individually analyzed by LC-MS in the ripe fruits of two cultivars of the commercial strawberry (Fragaria x ananassa Duch., Rosaceae) as well as in accessions of F. vesca, F. moschata, and F. chiloensis. Metabolic analysis revealed that the majority of the compounds analyzed accumulated in a genotype-dependent manner. Transcriptional studies of genes encoding for enzymes of the biosynthetic pathway such as phenylalanine ammonia-lyase, cinnamic acid 4-hydroxylase, chalcone synthase, and flavonoid 3'-hydroxylase could partially explain the different levels of polyphenolics observed in the Fragaria species. The results can provide a sound basis for selecting markers for the development of cultivars with high phenolic content, which can be of value for the food industry.
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