Fatima Iram, Hussain Tanveer, Rafay Muhammad, Akram Muhammad, Bano Sabahat, Shabbir Sammia
Department of Life Sciences, Islamia University Bahawalpur, Pakistan.
Department of Forestry, Range and Wildlife Management, Islamia University Bahawalpur, Pakistan.
Pak J Pharm Sci. 2017 Sep;30(5):1625-1628.
Antioxidants acts as a defense mechanism that protects against oxidative damage caused by free radicals produced in the body. Medicinal plants are preferably used for various diseases in many countries. The studies were conducted to determine the antioxidant capacity of the ethanolic leaves and fruits extracts of Physalis minima, Withania somnifera, Datura inoxia, Solanum nigrum and Kigelia africana by 1, 1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging assay. Quercetin was used as a standard antioxidant which shows 93.66% inhibition. Among the five selected plant species, the percentage of antioxidant activity of leaves extracts was found in order: P. minima > W. somnifera > S. nigrum > K. africana > D. inoxia and fruits extracts was in order: W. somnifera ≥ D. inoxia > P. minima > K. africana > S. nigrum respectively.
抗氧化剂作为一种防御机制，可保护机体免受体内产生的自由基所造成的氧化损伤。在许多国家，药用植物常用于治疗各种疾病。本研究通过1,1-二苯基-2-苦基肼（DPPH）自由基清除试验，测定了小酸浆、睡茄、无刺曼陀罗、龙葵和非洲吊灯树乙醇提取物的抗氧化能力。槲皮素用作标准抗氧化剂，其抑制率为93.66%。在所选择的五种植物中，叶提取物的抗氧化活性百分比依次为：小酸浆＞睡茄＞龙葵＞非洲吊灯树＞无刺曼陀罗；果实提取物的抗氧化活性百分比依次为：睡茄≥无刺曼陀罗＞小酸浆＞非洲吊灯树＞龙葵。
