Antioxidant and antimicrobial activity of Cynara cardunculus extracts
Authorized Users Only
Ćirić, Ana D.
Article (Published version)
MetadataShow full item record
The whole, fresh involucral bracts of cardoon, Cynara cardunculus L. (Compositae), were extracted with EtOH and an aqueous suspension of the obtained EtOH extract was partitioned successively with CHCl3, EtOAc and n-BuOH, leaving a residual water extract. All obtained extracts were evaluated for their antioxidant and antimicrobial properties. The antioxidant potential was evaluated using following in vitro methods: FRAP (ferric reducing antioxidant power) assay, and scavenging of 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical. Antimicrobial activity was estimated using a microdilution technique against food-borne, mycotoxin producers and human pathogenic bacteria and micromycetes. The following bacteria were tested: Salmonella typhimurium, Escherichia coli, Bacillus subtilis, Staphylococcus epidermidis, Staphylococcus aureus, as well as micromycetes: Aspergillus niger, Aspergillus ochraceus, Aspergillus flavus, Penicillium ochrochloron, Penicillium funiculosum, Trichoderma viride, Fusari...um tricinctum and Alternaria alternata. Results showed that all extracts possessed concentration-dependent antioxidant activity. In biological assays, C. cardunculus extracts showed antimicrobial activity comparable with standard antibiotics.
Keywords:Cynara cardunculus / involucral bracts / antioxidant activity / FRAP / DPPH / antimicrobial activity
Source:Food Chemistry, 2008, 107, 2, 861-868
- Elsevier Sci Ltd, Oxford
- Ispitivanje lekovitog potencijala biljaka: morfološka, hemijska i farmakološka karakterizacija (RS-143012)
- Taksonomska, biohemijska i molekularna istraživanja gljiva i biološki aktivnih supstanci (RS-143041)
- Peer-reviewed manuscript: http://farfar.pharmacy.bg.ac.rs/handle/123456789/3548