Advisor(s)
Abstract(s)
Cardoon is a multi-purpose crop for several industries. In this study, cardoon seeds were separated according to
the viability and characterized for their chemical composition and bioactivities. Viable seeds contained higher
levels of α-tocopherol (6.7 mg/100 g), lipids (23.11 g/100 g, manly oleic and linoleic acids), and free sugars
(5.4 g/100 g) than the unviable ones. The hydroethanolic extract of viable seeds presented a higher concentration
of phenolic compounds, namely 5-O-caffeoylquinic (8.0 mg/g) and 3,5-O-dicaffeoylquinic (43.9 mg/
g) acids, and greater in vitro antioxidant activity. Both extracts showed antibacterial properties, but the best
results were achieved with unviable seeds. The extracts had similar antifungal activity but did not reveal antiinflammatory
capacity or cytotoxicity to the tested cell lines. Therefore, while viable seeds contained antioxidant
phytochemicals and an energy and carbon source for germination, unavailable seeds stood out for their potential
to be used in the development of bio-based antibacterial ingredients.
Description
Keywords
Bioactive properties Chemical composition Cynara cardunculus L. Phenolic acids Seed viability
Pedagogical Context
Citation
Mandim, Filipa; Dias, Maria Inês; Pinela, José; Barracosa, Paulo; Ivanov, Marija; Stojković, Dejan; Soković, Marina; Santos-Buelga, Celestino; Barros, Lillian; Ferreira, Isabel C.F.R. (2020). Chemical composition and in vitro biological activities of cardoon (Cynara cardunculus L. var. altilis DC.) seeds as influenced by viability: Chemical prospection and bioactivity of cardoon seeds. Food Chemistry. ISSN 0308-8146. 323, p. 1-8