Update on the part of the catalyst prepared from chicken bones with KOH found at concentration equal to 20% KOH will give the percentage of methyl ester best.
In terms of improving the catalyst prepared from chicken bones with KOH showed that the concentration of KOH equivalent to 20% percent of methyl esters was the best.
In terms of improving catalyst prepared from chicken bone by KOH found that the concentration of KOH was 20% will give the percentage of methyl ester is best.