Production of Biodiesel from Nonedible Parkia biglobosa Oil under Acidic Condition

Figure 3

Influence of catalyst concentration on the production of biodiesel (molar ratio of methanol to oil 6 : 1, reaction temperature 65°C, and reaction time 1 h); mean with standard deviation values were 82.53  1.07, 87.80  1.13, 92.70  0.61, and 89.27  0.67. Source: lab analysis (2021).