• Sakshi Singh
• Ashwani Sharma
• Archana Pandey
• Babita Agrawal

Antioxidants produced in high quantities by plants are pharmacologically powerful and have negligible to no negative effects when used therapeutically. The mythical plant Nyctanthes arbor- tristis L. (Oleaceae) has significant medicinal potential in Ayurveda and their extract to treat a variety of ailment, is one of the oldest medical systems. In Addition to being used as a laxative, for rheumatism, skin condition and as a sedative, it has a number of medicinal properties, including Antileishmaniasis, Antioxidant, Antifungal, Antipyretic, Antihistamic, Antimalerial, Antiinflammatory, Hepatoprotective and Antibecterial. The present study is focus on different parts like Flowers, Leaves, Bark, Fruits and Heartwood of Nyctanthes arbor- tristis L. plants were extracted in three different solvents such as ethanol, ethyl acetate and hexane and Antioxidant Activity were evaluated by in vitro assay DPPH Free radical scavenging method. Phytoconstituents likes phenolic and flavonoids content are present in Flowers, Leaves and Bark. The maximum Antioxidant activity was observed in ethanol, ethyl acetate extract of Flowers, Leaves and Bark as well as hexane extract of Bark, standard to Gallic acid. Thus, we observed that the ethanolic extract of Bark (96.37%), ethyl acetate extract of Bark (92.37%) and hexane extract of Bark (92.19%) exhibit higher antioxidant activity so we can firmly say that in all extracts of Bark shows greatest Antioxidant activity similarly ethanol extract of Leaves (95.82%) and flowers (96.55%) and ethyl acetate extract of Leaves (91.82%) and Flowers (95.46%) shows outstanding Antioxidant activity compared to all other sample. This is the novel finding that different extracts (ethanol, ethyl acetate and hexane) of Bark exhibited excellent Antioxidant activity.

Antioxidant, Nyctanthes arbor- tristis L., DPPH* assay, Flowers, Leaves, Bark, Fruits and Heartwood extracts.

"Comparative Studies on Antioxidant Activity of Flowers, Leaves, Bark, Fruits and Heartwood of the Nyctanthus arbor-tristis L.", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 3, page no.a679-a690, March-2023, Available :http://www.jetir.org/papers/JETIR2303084.pdf

"Comparative Studies on Antioxidant Activity of Flowers, Leaves, Bark, Fruits and Heartwood of the Nyctanthus arbor-tristis L.", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 3, page no. ppa679-a690, March-2023, Available at : http://www.jetir.org/papers/JETIR2303084.pdf