Table 2 Comparison of gas chromatogram summary of fatty acid methyl ester product of biodiesel produced from palm oil transesterified by free lipase, and alginate and I. gabonensis-immobilized lipase
Methyl esters | Calcium alginate lipase | Irvingia gabonensis lipase | Free lipase |
|---|---|---|---|
Hexadecanoate (palmitic acid) | 17.12 | 9.5 | 13.7 |
9-Octadecenoate (oleic acid) | 15.13 | 14.7 | 15.61 |
Octadecanoate (stearic acid) | 2.59 | 1.44 | 2.34 |
Dodecanoate (lauric acid) | 18.17 | 18.2 | 18.32 |
9,12-Octadeca-dienoate (linoleic acid) | 3.3 | 2.13 | 0.8 |
13-Octadecanoate | 18.44 | ||
11-Octadecanoate | 3.14 | ||
8-Octadecanoate | 1.43 | ||
Tetradecanoate | 2.46 |