Figure 7

Biodiesel from Clean Coffee oil catalysed by Combi-PCMC (White Bars); a mixture of PCMCs (1:1) (Grey Bars) and CL-Combi-PCMC (Black Bars) of CAL B and Palatase (tert- Butanol used for precipitation). Reactions were performed taking 0.5 g coffee oil. Combi-PCMCs and CL-Combi-PCMCs were made as described in the materials and methods section. For a mixture of PCMCs, the individual PCMCs were made separately as mentioned in Figure 6 and then they were mixed in the ratio 1:1. Ethanol was added in molar ratio 4:1 (ethanol: oil). Conversion rates were measured by analyzing the aliquots withdrawn at the different time intervals using Gas Chromatographic analysis. The experiments were done in duplicates and the error between the two sets was within 3%.