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Mohti H, Taviano MF, Cacciola F, Dugo P, Mondello L, Marino A, Crisafi G, Benameur Q, Zaid A, Miceli N. Inula viscosa (L.) Aiton leaves and flower buds: Effect of extraction solvent/technique on their antioxidant ability, antimicrobial properties and phenolic profile. Nat Prod Res 2019; 34:46-52. [PMID: 30822145 DOI: 10.1080/14786419.2019.1569659] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
This study was designed to establish the most effective solvent/technique for extracting antioxidant phytoconstituents from leaves and flower buds of Inula viscosa (L.) Aiton (Asteraceae) grown wild in Morocco. Maceration and hot extraction with methanol or water and Soxhlet ethanol extraction were utilized. The antioxidant potential was evaluated in vitro by DPPH, reducing power, and ferrous ions chelating activity assays. I. viscosa leaf and flower bud extracts displayed the strongest effect in the DPPH test, being the Soxhlet ethanol the most active ones (IC50 = 54.24 ± 0.21 μg/mL and 39.77 ± 0.23 μg/mL); thus, they were selected for further investigations. The antimicrobial efficacy of the Soxhlet ethanol extracts against ATCC and food isolates strains was assayed; the leaf extract showed the best activity, and Candida albicans was the most sensitive strain (MIC = 125 µg/mL). The extracts resulted non-toxic against Artemia salina. Among the phenolics characterised by HPLC-PDA-ESI-MS, hispidulin hexoside, patuletin and spinacetin were identified for the first time.
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Affiliation(s)
- H Mohti
- Department of Biology Faculty of Sciences, Moulay Ismail University, Meknes, Morocco.,CUI-UMI-UHasselt Program (Morocco-Belgium)
| | - M F Taviano
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Polo Annunziata, University of Messina, Messina, Italy
| | - F Cacciola
- Dipartimento di Scienze Biomediche, Odontoiatriche e delle Immagini Morfologiche e Funzionali, University of Messina, Messina, Italy
| | - P Dugo
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Polo Annunziata, University of Messina, Messina, Italy.,Facoltà Dipartimentale di Medicina e Chirurgia, University Campus Bio-Medico of Rome, Rome, Italy.,Chromaleont s.r.l., c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, Messina, Italy
| | - L Mondello
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Polo Annunziata, University of Messina, Messina, Italy.,Facoltà Dipartimentale di Medicina e Chirurgia, University Campus Bio-Medico of Rome, Rome, Italy.,Chromaleont s.r.l., c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina, Messina, Italy
| | - A Marino
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Polo Annunziata, University of Messina, Messina, Italy
| | - G Crisafi
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Polo Annunziata, University of Messina, Messina, Italy
| | - Q Benameur
- Nursing Department Faculty of Natural Sciences and Life, Abdelhamid Ibn Badis University, Mostaganem, Algeria
| | - A Zaid
- Department of Biology Faculty of Sciences, Moulay Ismail University, Meknes, Morocco.,CUI-UMI-UHasselt Program (Morocco-Belgium)
| | - N Miceli
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Polo Annunziata, University of Messina, Messina, Italy
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