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Pakistan Journal of Pharmaceutical Sciences 2020-Mar

Evaluation of antioxidant and antimicrobial activities on various extracts of Himalayan medicinal plants.

Només els usuaris registrats poden traduir articles
Inicieu sessió / registreu-vos
L'enllaç es desa al porta-retalls
Mumtaz Ali
Abdul Latif
Najeeb Rehman
Khair Zaman
Saifullah Mehsud
Nazia Akbar
Manzoor Ahmad
Mohammad Arfan

Paraules clau

Resum

The DPPH radical scavenging potentials of the fractions were determined in comparison to positive controls such as quercetin with EC50 = 4.12±1.27, ascorbic acid with EC50 = 6.20±1.67, gallic acid with EC50 = 4.75±1.24 and α-tocopherol with EC50 = 32.50±1.57 μg/mL. The experiment showed that aqueous fractions of the bark extracts of Abies pindrow (fraction: C2) and Cedrus deodara (fraction: E2) showed significantly lower EC50 values of 2.5±0.5 and 2.5±0.6 μg/mL, respectively. In reducing power assay, lower EC50 values of 5.5 and 4.5μg/mL were recorded for the aqueous fraction (fraction: C 2) and final residue (fraction: C5), of Abies pindrow, respectively. The ethyl acetate, acetone and final fractions of knot wood of Picea smithiana were found significantly active against all bacterial strains. Of the most sensitive fractions towards all the fungal strains was ethyl acetate fraction obtained from the bark of Cedrus deodara with a zone of inhibition ranging from 75 to 88 % that was more than the standard fluconazole.

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