Investigation of in-vitro antioxidant potential of ethnobotanically important tree, Pterospermum acerifolium L.
2012
Malik, S.K. (Government Coll. Univ., Lahore (Pakistan). Dept. of Botany) | Zaheer-ud-Din, K. (Government Coll. Univ., Lahore (Pakistan). Dept. of Botany) | Ajaib, M. (Government Coll. Univ., Lahore (Pakistan). Dept. of Botany)
The present study was based on the investigation of an ethnopharmacological activity, i.e. antioxidant potential of a traditionally used important tree, Pterospermum acerifolium Linn. The crude extracts of fruit, leaf, stem and bark were extracted in polar & non polar solvents, viz. petroleum ether, chloroform, methanol and water by maceration. Antioxidant profile of P. acerifolium Linn. was evaluated by three methods: scavenging of DPPH, total antioxidant assay along with the determination of total phenolic contents. Results revealed that P. acerifolium Linn. had significant antioxidant DPPH scavenging potential (scavenging greater than 80%) and total antioxidant contents greater than 0.562, especially its fruit, stem and bark showed very good antioxidant potential. Moreover, total phenolic contents were also higher in fruit, stem and bark extracts, i.e., 0.149, 0.124 and 0.137 mg of Gallic acid equivalents (GAE) respectively. The antioxidant results were quite reasonable as compared with the standard antioxidants (alpha-tochopherol, vitamin E and BHT).
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