Has been carried out isolation and identification of active chemical groups ethanol extract antioxidant Cashew Leaves (Anacardium occidentale L.) in aims is determine the class of the active antioxidant compounds from ethanol extract of Cashew Leaves (Anacardium occidentale L.). Sample of 400 grams of macerated with ethanol produces dry extract 20.087 grams. Dry done profile TLC plate and then eluted with eluent n-hexane: ethyl acetate (6:4), and then sprayed DPPH to determine antioxidant compounds. Ethanol extracts was than isolated using vacum liquid chromatography column with n-
A study of identification and assay of prednisone in rheumatic jamu. The aim of this study to identify the presence of Chemicals Drug (CD) in containing prednisone in rheumatic jamu with TLC-densitometry method. Samples extracted with Mesceration method using etanol 96% solvent by sonicator. Qualitative analysis using thin layer chromatography (TLC) with a mobile phase of chloroform : ethyl acetate (1 : 9) indicates that the sample A containing Prednison. Quantitative analysis using a TLC-densitometry at a maximum wavelength 254 nm. The result is one containing prednisone that suspected sample "A" is 475,421 µg/mL and the percentage is 4,754%.
Radical scavenging activity of diethyl ether fraction from sea lettuce tree (Scaevola taccada (Gaertn.) Roxb.) using DPPH.The of research aims is determine the radical scavenging activity of sea lettuce tree based on the binding of free radical DPPH. Was conducted the research on test radical scavenging activity of sea lettuce tree (Scaevola taccada (Gaertn.) Roxb.) and then compared with the radical scavenging activity Vitamin C. Five thousand grams of sea lettuce tree (Scaevola taccada (Gaertn.) Roxb.) extraced by maceration using ethanol. Dry ethanol extract was partitioned with solid-liquid partition, using diethyl ether and then tested for activity and was obtained radical scavenging IC 50 value 27,06 µg/mL.
Mistletoes (Dendrophthoe pentandra L. Miq) is one of the medicine plant which used traditionally to remedy the various of disease. Empirically, communities used mistletoes leaves as cough, tonsillitis, measles, cancer, diuretic, and pain relievers. This research is aimed to determine total flavonoid content in extract of mistletoes leaves (Dendrophthoe pentandra L. Miq). Extraction has done with Thin Layer Cromathography (KLT) method to determine active content which in sample. Analysis of chemistry content in ethanolic extract of mistletoes leaves show are flavonoid content. Content of total flavonoid with Chang et al., 2002 method using UV-Vis spectrophotometry at a wavelength of 440 nm. From this research result 39.713 g ethanolic extract with percent of extract rendamen is 6.109% from 650 g dry powder of mistletoes leaves. The results of total flavonoid of ethanolic extract of mistletoes leaves is 2.48% calculated as quercetin.
Lemongrass Leaves (Cymbopogoncitratus DC.) and Thatch Grass Leaves (Imperata cylindrical (L.)Raeusch) are medicinal plants belong to similary family. Their activity as natural antioxidant sources because it’s contains the flavonoids compound. This study aimed to determine the total flavonoid content on the ethanol extract of lemongrass leaves and the thatch grass leaves using UV-Vis spectrophotometry. The extraction wasdone by maceration methodusing ethanol. The first sample is 3,95% lemongrass leaves, and the second one is 2,98% thatch grass leaves. The qualitative analysis by TLC method with the eluent ratio n-Hexane:ethyl acetate (6:4) showed that both samples positively contain flavonoids. The quantitative analysis by spectrophotometry at the maximum wavelength 431 nm showed that total flavonoid content in the first sample is 2,8666 % and the second sample is 3,4866 %.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.