Antioxidant activity, phytochemical screening and GC-MS profile of Abies marocana Trab.
2024
Nouredine El Mejdoub | Driss Hmouni | Hamid Erramli | Ahmed Dermaj | Meryem Zouarhi | Malak Zırarı | Marouane Aoujı
The aim of this research was to explore the chemical composition and antioxidant activities of etheric extracts of Abies marocana. A Soxhlet apparatus was used to extract bioactive molecules from the various parts of the plant. Furthermore, the levels of antioxidant compounds were quantified, while the Gas chromatography was utilized to determine the chemical constituents of the extracted molecules. The extracts were evaluated for their antioxidant properties using the DPPH radical scavenging method and the total antioxidant capacity test. The levels of polyphenols varied across different parts of the plant, ranging from 2.474 ± 0.029 mg.g-1 DM in needles to 4.207 ± 0.008 mg.g-1 DM in twigs. Flavonoids were most abundant in needles 0.140 ± 0.001 mg.g-1 DM and least abundant in cones 0.069 ± 0.007 mg.g-1 DM. Tannins had the highest concentration in twigs 2.608 ± 0.114 mg.g-1 DM, followed by cones 1.948 ± 0.037 mg.g-1 DM and needles 1.512 ± 0.09 mg.g-1 DM. A chromatographic analysis revealed that 56 components were in the samples, with terpene compounds being the most abundant in the different organs. In terms of antioxidant activity, the extract derived from twigs exhibited the strongest antioxidant capacity 49.377 ± 0.371 mg EAA.g-1 DM, followed by cones 35.129 ± 0.084 mg EAA.g-1 DM and needles 13.663 ± 0.084 mg EAA.g-1 DM. Alternatively, the IC50 values for the three organs were found to be in the range of 3844 to 5047.67 µg.mL-1. The results highlight the potential phytopharmaceutical value of A. marocana due to the presence of diverse phyto-components.
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