Valorization of handmade argan press cake by supercritical CO2 extraction
Valorisation du tourteau d'arganier artisanal par extraction au CO2 supercritique
Résumé
The capability of supercritical CO2 to extract edible oil from handmade Argan press cake was investigated. The aim is to enable Moroccan cooperatives to improve their economic situation by valuing the handmade argan press cake, which is nowadays considered as a waste, applying a clean extraction process. Extraction experiments were conducted at 300 and 400 bar, 333 K and 0.14 kg/h on dried biomass. The fatty acids and tocopherols compositions of the extracted oil were found similar to previous studies and correspond to a commercial edible oil. The air flow dried biomass exhibits a higher extraction yield compared to the freeze-dried biomass. A pressure of 300 bar seems to be suffcient to allow the extraction of oil with a satisfactory extraction kinetic.
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HAL Food and Bioproducts Processing 137 2023 168-176 Valorization argan press cake.pdf (2.86 Mo)
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