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Advisor(s)
Abstract(s)
The capitulum constituents (stigma, corolla, bracts, pappus, and receptacle) of seven cardoon cultivars were
studied for their polyphenolic composition and bioactive properties. Fifteen phenolic compounds were identified,
secoiridoid, secoxyloganin, and apigenin-O-hexuronoside in higher concentrations. The bracts had the highest
concentration of phenolic compounds, and the corolla had the greatest variety. The corolla of F4-1-4 and F1-34-1
cultivars, and bracts of F1-1-1, F1-19-4, and F4-37-1 cultivars revealed the greatest capacity to inhibit the thiobarbituric
acid reactive substances formation (IC50 of 38 and 40.4 μg/mL, respectively). The corolla of F1-34-1
cultivar showed higher antihaemolytic activity than the positive control Trolox (IC50 5.5 vs. 20 μg/mL). Bracts of
the F4-25-2 cultivar showed higher cytotoxic activity. No hepatotoxicity or anti-inflammatory effects were
presented by the studied samples. These bioactivities exhibit a significative correlation with phenolic compounds,
in particular flavonoids. Antimicrobial capacity was also observed, with all samples presenting higher
antifungal potential than positive controls.
Description
Keywords
Cynara cardunculus L. Cardoon cultivars Phenolic compounds In vitro bioactivities Antioxidant activity Biowaste reduction
Pedagogical Context
Citation
Mandim, Filipa; Pinela, José; Marcelino, Sandra Andreia; Dias, Maria Inês; Barracosa, Paulo; Ivanov, Marija; Soković, Marina; Santos-Buelga, Celestino; Barros, Lillian (2024). Insights into the phenolic composition and in vitro bioactivity of cardoon capitulum: a nutraceutical-oriented valorization study. Food Chemistry. ISSN 0308-8146. 435, p. 1-12
Publisher
Elsevier