Screening of select ornamental flowers of the family Apocynaceae for phytochemical constituents
Journal Title: Asian Pacific Journal of Tropical Disease - Year 2012, Vol 2, Issue 0
Abstract
Objective: To examine the phyto-constituents present in some ornamental flowers of the family Apocynaceae. Methods: Aqueous, acetone, petroleum ether, chloroform and ethanol extracts of the flowers were prepared by adding 50 g of fresh fallen flowers of the family Apocynaceae (Allamanda cathartica Linn., Allamanda violacea Gardn. & Fielding, Wrightia tinctoria (Roxb) R.Br. and Nerium oleander Linn.) to 200 ml of these solvents; the constituents were shaken at room temperature for 24 h. After incubation, the extracts were filtered by using Whatman No.1 filter paper, collected and stored at 4曟. The extracts were concentrated by using vacuum evaporator and dried at 60曟. Preliminary phytochemical screening was performed by the Harborne method. Results: Different phyto-constituents such as alkaloids, phenolic compounds, flavonoids, saponins, glycosides, terpenoids, steroids, coumarins, quinones, phytosterols, proteins and carbohydrates were identified in the extracts. The presence or absence of the phyto-constituents depended upon the solvent medium used for extraction and the physiological property of the flowers. Conclusions: The findings of this study reveal that even ornamental flowers have potential antimicrobial compounds that may be of great use for developing plant-based drugs.
Home-based malaria management in children by women: Evidence from a malaria endemic community in sub-Saharan Africa
Objective: To examine the medicines and dosage that mothers who engage in home-based malaria management administer to children aged ≤ 5 years having signs and symptoms associated with malaria and to discuss the possibili...
Antibacterial activity of crude ethanolic extract and solvent fractions of Ficus pseudopalma Blanco leaves
Objective: To investigate the antimicrobial properties of Ficus pseudopalma (F. pseudopalma) leaf extracts. Methods: The antibacterial properties of F. pseudopalma Blanco crude ethanolic leaf extract, and its solvent fra...
Peptide-assembled graphene oxide as fluorescent turn-on sensor for ultrasensitive Lipopolysaccharide (Endotoxin) detection
Introduction: Lipopolysaccharide (LPS), or endotoxin, a major component in the outer cell membrane of Gram-negative bacteria is a very powerful and toxic inflammatory stimulator, resulting in sepsis or septic shock, a si...
Surveillance of infection status of drug resistant Staphylococcus aureus in an Indian teaching hospital
Objective: To access nosocomial and community accounts of multidrug resistant strains of Staphylococcus aureus (S. aureus) isolated by surveillance in a teaching hospital, over a period of 30 months. Methods: Clinical sa...
Additional records of vector mosquito diversity collected from Al Khor district of North-eastern Qatar
Objective: To survey mosquito diversity in the north-eastern area, which includes the most important gas industrial city in Qatar, and to investigate the potential mosquitoes for transmitting diseases. Methods: A study w...