The provided sections summarize research findings on biodiesel production using hybrid feedstocks and catalysts, specifically goat fat oil and beniseed oil combined with a catalyst blend of plantain peduncle and goat bone. Key findings from the analysis of the properties of optimal biodiesel yield are as follows:
1. **Density**: The density of the biodiesel derived from the hybrid feedstocks and catalysts was measured at 0.8660 g/cm³, which is