eng Oriental Scientific Publishing Company Biomedical and Pharmacology Journal 0974-6242 2019-12-28 12 4 1867 1880 10.13005/bpj/1817 29609 article Preeti Chaudhary 1 Shamim Ahmad 2 Najam Ali Khan 3 Department of Pharmaceutical Technology, Meerut Institute of Engineering and Technology, Meerut, Uttar Pradesh, India Department of Pharmacy, Translam Institute of Pharmaceutical Education and Research, Meerut, Uttar Pradesh, India Department of Pharmacy, I.F.T.M University, Moradabad, Uttar Pradesh, India The main aim and objective of my research work is the isolation of volatile oil from the leaves of plants by GC-MS analysis and screening of in vitro antioxidant potential of hydroalcoholic extracts of some Indigenous plants of Northern India in rodents. To perform this research work the fresh leaves of Prunus persica, Calotropis procera & Canscora decussata were taken. The isolation of volatile oil was done by using Clavenger apparatus. The samples were further analyzed by Gas Chromatography-Mass Spectrometry. In vitro antioxidant potential was carried out by DPPH, Hydrogen peroxide, Hydroxyl radical and Nitric oxide scavenging activity. Ascorbic acid was used as standard drug in this study. The percent inhibition values for antioxidant potential were obtained and tabulated. The present experimental data clearly displayed that the hydroalcoholic extract of above mentioned plant’s leaves exhibited antioxidant potential. https://biomedpharmajournal.org/vol12no4/isolation-and-characterization-of-volatile-oil-by-gc-ms-analysis-screening-of-in-vitro-antioxidant-potential-of-hydroalcoholic-extracts-of-some-indigenous-plants-of-northern-india-in-rodents/ In vitro antioxidant potential  Prunus persica  Calotropis procera Canscora decussata  DPPH GC-MS analysis