• D.Madankumar
• S.Pari

Abstract : Preliminary phytochemical screening is the key step in finding the chemical constituents that leads to the isolation of medicinally important lead compounds. Senna alata (L.) Roxb and Senna hirsuta is a popular Indian medicinal tree. The purpose of the present study was to evaluate the phytochemical constituents of the extracts left by Senna alata and Senna hirsuta.The extraction was carried out in three different solvents to identify and understand the bioactive chemical constituents of the leaf extracts by subjecting the powder to Soxhlet extraction in various solvent systems according to the polarity wise. The yield of each extract was calculated and the methanolic extract found to be more in both. The phytochemical screening was tested for three different extracts (methanol, diethyl ether, and hexane) from two different plant sources in which the two methanolic extracts showed more activity compared to the other two.In Senna alata methanolic extract shows the presence of alkaloids, flavonoids, steroids, terpenoids, phenols, tannins and Carbohydrates while in Senna hirsutathe phytoconstituents present are alkaloids, flavonoids, steroids, terpenoids, phenols and Carbohydrates. In the quantitative phytochemical analysis, the methanolic extract of Senna alata and Senna hirsutahave alkaloid content (26.40 and 4.20), flavonoid content (6.76 and 0.84)and Phenol content (37.48 and 28.76). It shows that S.alata's methanolic extract has the potential to scavenge free radicals and can provide leads from multiple medicinal crops in the ongoing quest for natural antioxidants to be used in the treatment of free radical reaction-related diseases that contribute several pharmaceutical applications to humans.

IndexTerms: Phytochemical analysis,Senna alata, Senna hirsuta, Alkaloid, Flavonoid,Phenols.

"Preliminary Phytochemical activity and Quantitative analysis of Senna alata and Senna hirsuta medicinal tree", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.375-380, June 2019, Available :http://www.jetir.org/papers/JETIR1908997.pdf

"Preliminary Phytochemical activity and Quantitative analysis of Senna alata and Senna hirsuta medicinal tree", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp375-380, June 2019, Available at : http://www.jetir.org/papers/JETIR1908997.pdf