TABLE 4.

Effect of different treatments on the biodiesel properties of lipids of P. donghaiense^a

Treatment	DU (%)	IV (g I2/100 g)	SV	CN
Control	87.71 ± 4.75	175.04 ± 9.93	194.3 ± 0.2	35 ± 2.2
N deficiency	65.93 ± 2.42	118.11 ± 6.26	195.24 ± 0.37	47.67 ± 1.39
P deficiency	51.59 ± 4.8	97.32 ± 6.59	196.11 ± 0.32	56.29 ± 2.53
1% Y42 supernatant	82.66 ± 4.67	163.12 ± 7.15	194.97 ± 1.57	38.22 ± 2.19
3% Y42 supernatant	35.3 ± 6.42	47.53 ± 3.83	198.61 ± 3.29	63.47 ± 3.01
5% Y42 supernatant	36.22 ± 7.47	31.69 ± 4.52	205.19 ± 4.31	66.38 ± 3.86

^aDU, degree of unsaturation {(monounsaturated fatty acids [wt%]) + 2(polyunsaturated fatty acids [wt%])}; IV, iodine value; SV, saponification value; CN, cetane number.