10.6084/m9.figshare.10271444.v1 Sara Adjdir Sara Adjdir Nabila Benariba Nabila Benariba Imad Abdelhamid El Haci Imad Abdelhamid El Haci Khaoula Ouffai Khaoula Ouffai Fouzia Atik Bekkara Fouzia Atik Bekkara Rabah Djaziri Rabah Djaziri Antioxidant activity and phenolic compounds identification of <i>Micromeria inodora</i> (Desf.) Benth. from Western Algeria Taylor & Francis Group 2019 Micromeria inodora polyphenol flavonoid antioxidant activity RP-HPLC-PDA 2019-11-08 07:06:49 Journal contribution https://tandf.figshare.com/articles/journal_contribution/Antioxidant_activity_and_phenolic_compounds_identification_of_i_Micromeria_inodora_i_Desf_Benth_from_Western_Algeria/10271444 <p><i>Micromeria inodora</i> (Desf.) Benth. is most studied for the antimicrobial activity of their essential oils; nevertheless there are no reports on the phenolic compounds of this species and their antioxidant activity. In this study, aqueous and organic extracts were assayed for their antioxidant activity. The polyphenol and total flavonoid content, varied between 175.50 and 332.62 mg GAE/g extract and 65.38–86.30 mg catechin equivalent/g extract, respectively. The results of antioxidant activity have shown that all extracts reported an important activity and the ethyl acetate extract showed the stronger effect, higher than some standards molecules. Its IC<sub>50</sub> value of scavenging DPPH is 1.5 ± 0.001 μg/mL; β-Carotene Bleaching assay (BCB) IC<sub>50</sub> = 28.1 ± 0.001 μg/mL and the Ferric Reducing Antioxidant Power (FRAP) IC<sub>50</sub> = 6.96 ± 0.05 μg/mL. RP-HPLCPDA analysis of phenolic compounds revealed the presence of phenolic acids and flavonoids as: gallic acid, quercetin, rutin, vanillin and naringenin.</p>