Phenolic Composition,Essential Oil,and Antioxidant Activity in the Aerial Part of Artemisia Herba-Alba from Several Provenances: A Comparative Study |
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Authors: | Soumaya Bourgou Sonia Tammar Nidhal Salem Khawla Mkadmini Kamel Msaada |
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Affiliation: | 1. Laboratory of Aromatic and Medicinal Plants, Biotechnology Center in Borj-Cedria Technopol, Hammam-Lif, Tunisia;2. Laboratory of Bioactive Substances, Biotechnology Center in Borj-Cedria Technopol, Hammam-Lif, Tunisia |
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Abstract: | This study characterized the phenolic, aroma compositions, and antioxidant capacities of four Artemisia herba alba accessions collected from north and center regions in Tunisia in order to select valuable origin with optimal bioactive compounds production. The total polyphenol and flavonoid contents varied between accessions with maxima contents observed in center regions. Kaempherol, apigenin, naringenin, p-coumaric, trans-cinnamic, and caffeic acids were the most abundant compounds with percentage varying depending on the considered accession. Significant changes on essential oil yields (0.4–1.2%) were found between accessions and three different oil chemotypes were distinguished: camphor, fenchol/α-thujone, and α-thujone/camphor. Cluster analysis of volatile and phenolic compositions grouped the accessions on different groups. Antioxidant activities of extracts were found to be higher than essential oils for the four provenances. The results suggested that the center regions have high potential for selecting varieties rich on essential oil, antioxidant phenolic acids, and flavonoids. |
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Keywords: | Artemisia herba alba Regions Phenolic composition Essential oils Antioxidant activity Gas chromatography/mass spectrometry (GC/MS) High-performance liquid chromatography (HPLC) |
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