Experimental study of shea butter extraction （乳木果油萃取的实验研究）.pdfVIP

VOL. 4, NO. 6, AUGUST 2009 ISSN 1819-6608 ARPN Journal of Engineering and Applied Sciences ©2006-2009 Asian Research Publishing Network (ARPN). All rights reserved. www.arpnj EXPERIMENTAL STUDY OF SHEA BUTTER EXTRACTION EFFICIENCY USING A CENTRIFUGAL PROCESS 1 1 2 Yézouma Coulibaly , Stéphane Ouédraogo and Nathalie Niculescu 12iE 01 BP 594 Ouagadougou 01, Burkina Faso 2GRET 211-213 rue la Fayette, 75010, Paris, France E-Mail: yezouma.coulibaly@2 ABSTRACT The experiments carried out focused on shea butter extraction with a centrifuge machine. Experiments were carried out in the laboratory with a small centrifuge, with a view to determining how parameters such as kernel paste temperature, dilution rate and centrifugation speed affected extraction efficiency. High efficiencies (over 30%) were obtained with accelerations over 1,293 g, a kernel paste temperature over 90°C and dilution over 50%. The centrifuge machine that had been designed was then tested using the same variables as parameters for butter extraction efficiency at various sites. Extraction efficiency was found to be barely higher than 30% on average. Mean efficiency values with traditional methods were found to be virtually the same as for the centrifugal process. Keywords: shea, butt