title: Phytochemicals, in vitro antioxidant, total phenolic contents and phytotoxic activity of Cornus macrophylla Wall bark collected from the North-West of Pakistan.
abstract: Plants are one of the precious creatures of Allah, producing a verity of useful bioactive compounds having definite pharmacological actions on human body. Keeping in view this idea, the methanolic extract from the bark of Cornus macrophylla was investigated for phytochemicals, antioxidant, total phenolic conte nts (TPC) and phytotoxic activities. Phytochemical analysis of Cornus macrophylla revealed the presence of tannins, anthraquinones, glycosides, reducing sugar, saponins and flavonoids. The percent free radicals scavenging potential of DPPH at 20, 40, 60, 80 and 100μg/ml was 72.69%, 73.32%, 73.51, 73.83% and 74.33% respectively and were compared to ascorbic acid (84.6%, 92.83%, 95.36%, 96.40% and 98.03%), gallic acid (85.49%, 92.47%, 95.14%, 98.22% and 98.03%) and quercetin (95.35%, 96.30%, 97.16%, 98.02% and 98.28%) as standards. The IC(50) value of Cornus macrophylla was 14.5/μg/ml. The TPC of the methanolic bark extract was 2.916 mg gallic acid equivalents/g of extract. The extract displyed excellent phytotoxic activity against the tested plant Lemna minor and inhibited the growth at 1000 μg/ml. Our findings revealed that the crude methanolic extract of Cornus macrophylla is a potential source of natural antioxidants and herbicidal.
authors.affiliation: Department of Pharmacy, University of Malakand, Malakand, KPK, Pakistan.
authors.forename: Syed Muhammad Mukarram
authors.initials: SM
authors.lastname: Shah
authors.affiliation: Department of Pharmacy, University of Malakand, Malakand, KPK, Pakistan.
authors.forename: Zakia
authors.initials: Z
authors.lastname: Ahmad
authors.affiliation: Department of Pharmacy, University of Malakand, Malakand, KPK, Pakistan.
authors.forename: Muhammad
authors.initials: M
authors.lastname: Yaseen
authors.affiliation: Department of Pharmacy, University of Malakand, Malakand, KPK, Pakistan.
authors.forename: Raza
authors.initials: R
authors.lastname: Shah
authors.affiliation: Department of Pharmacy, University of Malakand, Malakand, KPK, Pakistan.
authors.forename: Shazeb
authors.initials: S
authors.lastname: Khan
authors.affiliation: Department of Pharmacy, University of Malakand, Malakand, KPK, Pakistan.
authors.forename: Syed Muhammad Hassan
authors.initials: SM
authors.lastname: Shah
authors.affiliation: Department of Pharmacy, University of Malakand, Malakand, KPK, Pakistan.
authors.forename: Burhan
authors.initials: B
authors.lastname: Khan
mesh_terms: D000975:Antioxidants / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D029064:Araceae / Q000187:drug effects*; D029768:Cornus / Q000737:chemistry; D006540:Herbicides / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D000432:Methanol / Q000737:chemistry; D010154:Pakistan; D010636:Phenols / Q000032:analysis / Q000494:pharmacology*; D008517:Phytotherapy; D024301:Plant Bark; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D010946:Plants, Medicinal; D012997:Solvents / Q000737:chemistry
chemical_list: D000975:Antioxidants; D006540:Herbicides; D010636:Phenols; D010936:Plant Extracts; D012997:Solvents; D000432:Methanol