Ali, AkhyarAyu, Dewi Fortuna2014-01-172014-01-172014-01-17978-979-8389-18-4http://hdl.handle.net/123456789/5270This study aims to determine the influene of several concentrations of activated charcoal and concentrations of bentonite in the improvement of physic-chemical nature of cooking oil used and the quality of the resulting transparent solid soap. This research has been conducted from august to November 2010. This study conducted in the laboratory processing and analysis of agricultural technology, faculty of agriculture university of riau.enOther