Application of a Dynamic Extraction Model...

Published: Journal of Chromatographic Science, Volume 34, Number 7, July 1996, pp. 320-325.

Application of a Dynamic Extraction Model to the Supercritical Fluid Extraction of the Limonoid Cedrelone from Cedrela toona
William K. Modey, Dulcie A. Mulholland, and Mark W. Raynor

Dynamic supercritical fluid extraction of the limonoid cedrelone from the ground wood of Cedrela toona (Meliaceae) with pure and modified CO₂ is studied. Extracts are collected at regular intervals to investigate the extraction kinetics of this compound. A theoretically derived model that involves extrapolating data obtained from shorter extractions to estimate the amount of cedrelone in ground wood is employed. The estimated quantitative results are found to be similar to exhaustive extractions obtained with liquid hexane and supercritical carbon dioxide modified with methanol. Furthermore, data from the supercritical fluid extractions are fitted to the model to produce a characteristic kinetic curve.

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