Table 2 Major fatty acids present in the biodiesel produced from Pectinodesmus PHM3 with high level of ethers

Saturated fatty acids

1

Propanoic acid

5.42

2

Acetic acid

0.20

3

Butyric acid

0.24

4

Palmitic acid

1.68

5

Stearic acid

1.3

6

Carbonic acid

0.15

7

Carboxylic acid

0.07

8

Glutaric acid

0.05

Unsaturated fatty acids

9

Fumaric acid

0.04

Others

10

Silicic acid

0.32

11

Sulfurous acid

1.56

Ethers

12

Di propyl ether

4.76

13

Ethyl butyl ether

60

14

Methyl butyl ether

3.30

15

Propyl butyl ether

1.56