1. Amazonian Eryngium foetidum leaves exhibited very high contents of bioactive compounds and high singlet oxygen quenching capacity
- Author
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Renan Campos Chisté, Adriana Zerlotti Mercadante, Francilia Campos de Siqueira, Sérgio Henrique Brabo de Sousa, Deusa do Socorro Teixeira Costa Leitao, and Alessandra Santos Lopes
- Subjects
Amazonian ,lcsh:TX341-641 ,phenolic compounds ,antioxidant capacity ,01 natural sciences ,chemistry.chemical_compound ,0404 agricultural biotechnology ,Eryngium ,Carotenoid ,lc-ms ,chemistry.chemical_classification ,Quenching (fluorescence) ,biology ,lcsh:TP368-456 ,Chemistry ,Singlet oxygen ,amazonian plant ,010401 analytical chemistry ,carotenoids ,04 agricultural and veterinary sciences ,biology.organism_classification ,040401 food science ,0104 chemical sciences ,Antioxidant capacity ,lcsh:Food processing and manufacture ,lcsh:Nutrition. Foods and food supply ,Food Science ,Nuclear chemistry - Abstract
Phenolic compounds and carotenoids profile of Amazonian Eryngium foetidum leaves and the quenching ability of their hydrophilic extract against singlet oxygen (1O2) were determined. Chlorogenic acid (4327 μg/g, dry basis, d.b.) was the major phenolic compound in the leaves at very high concentrations, while lutein (205 μg/g, d.b.) and β-carotene (161 μg/g, d.b.) were the major carotenoids. The extract of E. foetidum leaves was able to scavenge DPPH● (91.6% at 5 mg/mL), ABTS●+ (15.77 μM Trolox equivalent/g extract) and it exhibited high efficiency to protect tryptophan against 1O2, with IC50 at 343 μg/mL and 78% of protection at the highest tested concentration (625 μg/mL). Therefore, E. foetidum leaves can be exploited as an accessible natural source of bioactive compounds with antioxidant properties to be used by the food or pharmaceutical industries.
- Published
- 2020