Article ID: | iaor20071256 |
Country: | Netherlands |
Volume: | 18 |
Issue: | 3 |
Start Page Number: | 455 |
End Page Number: | 476 |
Publication Date: | Mar 1990 |
Journal: | World Development |
Authors: | Hyman Eric L. |
Keywords: | developing countries |
Artisanal production of palm oil meets a significant and growing portion of the domestic demand in Central and West Africa. The traditional technology of pressing palm fruits is laborious and has a low yield of oil. In some areas, service pressing is available using manual Colin expellers, which are aging and no longer imported. Recently, commercial manufacturing of small-scale, Caltech expellers began in Cameroon in manual and motorized versions. The economic viability of these expellers and of two screw-operated batch presses used elsewhere in Africa are compared. Other types of screw-operated batch presses, hydraulic presses, and phase separation extractors are also discussed.