Natural rangelands occupy about 5.5 million hectares of Tunisia’s landmass, and 38% this area is in Tataouine governorate. Although efforts towards natural restoration are increasing rapidly as a result projects, the degraded has continued to expand severity desertification intensify. Any damage caused by disturbances, such grazing recurrent drought, may be masked return favorable rainfall cond...

HPLC, column and thin layer chromatography guided studies led to the isolation of seven different compounds in methanolic extracts of Podophyllum hexandrum. The isolated compounds were analyzed using LC-MS and High Performance Liquid Chromatography (HPLC) studies interfaced to mass spectroscopy. Isolated compounds were used successfully as chemical markers for the comparison of the twelve diffe...

1064 Identification of Articles of Botanical Origin by High-Performance ThinLayer Chromatography Procedure. High-performance thin-layer chromatography (HPTLC) is widely used for botanical identification. Variability of the chromatographic conditions has the potential to significantly impact the results. This informational general chapter describes, with illustrations, the need to control the re...