Phytochemical constituents and antibacterial efficacy of the flowers of Peltophorum pterocarpum (DC.) Baker ex Heyne

Abstract

The findings of the present study confirm the presence of significant antibacterial activity against human pathogens in the flowers of Peltophorum pterocarpum.

Phytochemical screening, antimicrobial and antioxidant efficacy of different extracts of Rumex dentatus L. – A locally used medicinal herb of Kashmir Himalaya

“…The aqueous extract of the plant inhibited none of the bacterial strains in comparison to the other extracts. This is in consonance with the results of a study reporting water to be less effective than organic solvents at extracting the active compounds from plants [35] . The results are also confirmed by a study showing the aqueous extract of Jatropha curcus as inactive against all the bacteria at all the concentration tested [36] .…”

In vitro antibacterial activity of Hibiscus rosa–sinensis flower extract against human pathogens

“…There are several reports published on antibacterial activity of different herbal extracts [18][19][20][21][22][23][24][25] . It supports the earlier investigation that the tannins isolated from the flower possess remarkable toxic activity against bacteria and may assume pharmacological importance [26][27][28][29][30][31][32][33][34][35][36][37][38] . Many antimicrobial screening studies use a relatively small number of microorganisms for testing.…”

“…A total of 10 g of dried flower was soaked in 50 mL of hot water which was then boiled for 30 min and kept for 24 h undisturbed and then filtered through sterile filter paper, evaporated by using solvent distillation apparatus. The extract was got with the help of a muslin cloth, centrifuged at 10 000 rpm for 5 min and the supernatant was stored at 4 曟 for further use [7] .…”

In vitro antimicrobial activity and phytochemical analysis of Cassia auriculata Linn

“…The bio active compounds obtained from medicinal plants have been used to treat various ailments casued by microorganisms. The most important of these bioactive principles are alkaloids, phenolic compounds, flavanoids and tannins that may be evolved in plants as self defence against pests and pathogens (Sukumaran et al, 2011). The Extractive values of aerial parts of C. auriculata Linn using different solvent showed petroleum ether 0.50, chloroform 1.20, ethyl acetate 2.15, methanol 2.56.…”