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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. Antioxidant activity Cardoon cultivars Phenolic compounds In vitro bioactivities Biowaste reduction
Citation
Filipa Mandim, José Pinela, Sandra Marcelino, Maria Inês Dias, Paulo Barracosa, Marija Ivanov, Marina Soković, Celestino Santos-Buelga, Lillian Barros, Insights into the phenolic composition and in vitro bioactivity of cardoon capitulum: A nutraceutical-oriented valorization study, Food Chemistry, Volume 435, 2024, 137480, ISSN 0308-8146, https://doi.org/10.1016/j.foodchem.2023.137480.
Publisher
Food Chemistry Elsevier