RESUMEN
The ethylacetate extracts produced from the leaves of Stixis suaveolens (Roxb.) was characterized on the basis of NMR spectra combined with extensive mass spectroscopic techniques. The chemical characterization revealed presence of two new phenolic amides which were named as stixilamides A and B.
Asunto(s)
Amidas/aislamiento & purificación , Capparaceae/química , Hojas de la Planta/química , Amidas/química , Animales , Espectroscopía de Resonancia Magnética con Carbono-13 , Concentración 50 Inhibidora , Lipopolisacáridos/farmacología , Ratones , Óxido Nítrico/biosíntesis , Extractos Vegetales/química , Espectroscopía de Protones por Resonancia Magnética , Células RAW 264.7RESUMEN
This study characterized the carbon and phosphorus composition of buffalo manure, its compost and vermicompost and investigated if presence of bamboo biochar has an effect on their chemical and biological reactivity. The four substrates were characterized for chemical and biochemical composition and P forms. The biological stability of the four substrates and their mixtures were determined during an incubation experiment. Their chemical reactivity was analyzed after acid dichromate oxidation. Biological reactivity of these substrates was related to their soluble organic matter content, which decreased in the order buffalo manure>compost>vermicompost. Phosphorus was labile in all organic substrates and composting transformed organic P into plant available P. The presence of biochar led to a protection of organic matter against chemical oxidation and changed their susceptibility to biological degradation, suggesting that biochar could increase the carbon sequestration potential of compost, vermicompost and manure, when applied in mixture.