Objective:To investigate the role of leaf extract of Limonia acidissima L.(Rutaceae) as a biocontrol agent against the larval form of Culex quinquefasciatus,and characterization of bioactive component responsible for ...Objective:To investigate the role of leaf extract of Limonia acidissima L.(Rutaceae) as a biocontrol agent against the larval form of Culex quinquefasciatus,and characterization of bioactive component responsible for larvicidal activity.Methods:Larval mortality of mosquito species was observed after 24,48 and 72 hours of exposure to different concentrations of aqueous extract,solvent extract and subsequently bioaclive compound.The bioaclive compound was subjected to IR and GC-MS analysis.Results:Mortality rale al 3%concentration of crude extract were highest(90%) amongsl all concentrations tested and subsequently highest(95%) mortality was achieved in chloroform:methanol extract at 100 ppm concentrations.IR and GC-MS analysis of bioaclive compound revealed the presence of steroid compound which may act as larvicide. Conclusions:The chloroform:methanol extract of mature leaves of Limonia acidissima was found to exhibit considerable mosquito larvicidal activity against Culex quinquefasciatus.展开更多
A newly designed quinazoline based compound, 6-pyridin-2-yl-5,6-dihydro-benzo[4,5]imidazo[1,2-c] quinazoline (PDBIQ) has shown the ability for the easy detection of nineteen amino acids on thin-layer chromatography pl...A newly designed quinazoline based compound, 6-pyridin-2-yl-5,6-dihydro-benzo[4,5]imidazo[1,2-c] quinazoline (PDBIQ) has shown the ability for the easy detection of nineteen amino acids on thin-layer chromatography plates as a spray reagent. This new reagent enabled to produce various distinguishable colors with amino acids with different RF values. The detection limits and the binding ability of PDBIQ with amino acids have been calculated. PDBIQ is also able to detect aminoacids from hydrolised seed protein. The title compound also exhibited profound inhibitory action against some gm (+ve) and gm (-ve) bacterial organisms. This paper deals with synthesis, spectroscopic application and biological evaluation of the organic moity.展开更多
文摘Objective:To investigate the role of leaf extract of Limonia acidissima L.(Rutaceae) as a biocontrol agent against the larval form of Culex quinquefasciatus,and characterization of bioactive component responsible for larvicidal activity.Methods:Larval mortality of mosquito species was observed after 24,48 and 72 hours of exposure to different concentrations of aqueous extract,solvent extract and subsequently bioaclive compound.The bioaclive compound was subjected to IR and GC-MS analysis.Results:Mortality rale al 3%concentration of crude extract were highest(90%) amongsl all concentrations tested and subsequently highest(95%) mortality was achieved in chloroform:methanol extract at 100 ppm concentrations.IR and GC-MS analysis of bioaclive compound revealed the presence of steroid compound which may act as larvicide. Conclusions:The chloroform:methanol extract of mature leaves of Limonia acidissima was found to exhibit considerable mosquito larvicidal activity against Culex quinquefasciatus.
文摘A newly designed quinazoline based compound, 6-pyridin-2-yl-5,6-dihydro-benzo[4,5]imidazo[1,2-c] quinazoline (PDBIQ) has shown the ability for the easy detection of nineteen amino acids on thin-layer chromatography plates as a spray reagent. This new reagent enabled to produce various distinguishable colors with amino acids with different RF values. The detection limits and the binding ability of PDBIQ with amino acids have been calculated. PDBIQ is also able to detect aminoacids from hydrolised seed protein. The title compound also exhibited profound inhibitory action against some gm (+ve) and gm (-ve) bacterial organisms. This paper deals with synthesis, spectroscopic application and biological evaluation of the organic moity.
