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Contribution à l'étude des substances à caractère lipidique extraites de tourbes et de sols hydromorphes

Abstract : Peats and soils contain liquid-like compounds which can be extrcted with neutral organic solvents. The author studied the diethyl-ether extracts of a commercial peat coming from Oldenburg (FRG), of a peat from Lorraine coming from the wood of Vitrimont (Meurthe-et-Moselle) and sampled at two depths (0-10 cm and 80 cm) and finally an anmoor sampled near the pool of Lachaussée (Meuse) at two depths (0-10 cm and 10-20 cm). The analytic procedure involved the use of capillary gas chromatography and combined gas chromatography masse spectrometry. these technics allowed the identification in the different samples after preliminary saponification of long chain normal fatty acids ranging from C16 to C14, fatty alcohols (C16-C34), omega-hydroxy-acids (C16-C30), sterols and various triterpenoïds. The proportions of certains compounds showed significant variations with the depth of the sample and with the acidity of the soil
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Jean-Claude Wilhelm. Contribution à l'étude des substances à caractère lipidique extraites de tourbes et de sols hydromorphes. Chimie. Université Paul Verlaine - Metz, 1986. Français. ⟨NNT : 1986METZ022S⟩. ⟨tel-01775556⟩

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