Table 3.

PHA production by isolated strains grown on glucose, refined glycerol, crude glycerol or cooking oils

Substrate	Acinetobacter sp. ASC1		Pseudomonas sp. ASC2		Enterobacter sp. ASC3		Bacillus sp. ASC4
	CDM (g/L)	PHAs (wt %)	CDM (g/L)	PHAs (wt %)	CDM (g/L)	PHAs (wt %)	CDM (g/L)	PHAs (wt %)
Glucose	2.7 ± 0.1	8.2 ± 3.5	2.2 ± 0.1	21.7 ± 2.6	2.6 ± 0.2	16.8 ± 1.9	4.8 ± 0.4	18.9 ± 1.5
Refined glycerol	8.6 ± 0.1	3.7 ± 2.4	10.0 ± 0.2	3.9 ± 0.9	7.2 ± 0.1	14.1 ± 2.7	6.1 ± 0.2	6.7 ± 2.8
Crude glycerol	8.5 ± 0.2	25.4 ± 3.1	10.7 ± 0.1	28.2 ± 1.2	9.8 ± 0.3	33.7 ± 1.3	7.8 ± 0.1	34.4 ± 3.4
Canola oil	9.0 ± 0.1	2.2 ± 3.2	12.1 ± 0.2	2.4 ± 2.0	9.2 ± 0.1	1.8 ± 1.4	9.5 ± 0.2	2.5 ± 1.1
Palm oil	13.3 ± 0.4	14.2 ± 3.5	17.8 ± 0.3	5.5 ± 1.2	12.1 ± 0.1	12.0 ± 2.2	14.6 ± 0.3	12.1 ± 2.0
Soybean oil	5.8 ± 0.3	6.7 ± 2.0	9.7 ± 0.1	5.6 ± 2.2	8.1 ± 0.2	5.3 ± 1.8	6.6 ± 0.1	3.4 ± 1.3
Sunflower oil	8.4 ± 0.1	7.3 ± 2.1	7.2 ± 0.1	2.5 ± 1.8	6.5 ± 0.3	5.5 ± 2.0	7.9 ± 0.1	4.7 ± 0.9
Corn oil	5.9 ± 0.2	4.1 ± 1.7	5.1 ± 0.1	2.6 ± 1.5	5.2 ± 0.1	3.1 ± 1.4	5.8 ± 0.3	2.2 ± 1.0
Grape seed oil	5.3 ± 0.1	7.4 ± 1.9	10.2 ± 0.2	5.6 ± 2.5	6.1 ± 0.1	6.3 ± 1.0	6.2 ± 0.1	5.1 ± 1.3
Olive oil	5.3 ± 0.1	5.0 ± 1.0	5.3 ± 0.1	3.7 ± 0.8	4.3 ± 0.2	2.1 ± 0.8	5.0 ± 0.1	3.2 ± 0.7
Rice bran oil	9.9 ± 0.1	5.1 ± 1.2	17.0 ± 0.2	5.9 ± 1.9	10.1 ± 0.1	4.8 ± 1.1	12.5 ± 0.1	6.0 ± 1.5
Camellia seed oil	5.7 ± 0.1	3.4 ± 1.1	5.5 ± 0.1	3.3 ± 1.1	4.8 ± 0.1	2.9 ± 0.6	3.7 ± 0.1	2.2 ± 0.2

Bacteria were cultured in production medium with 20 g/L carbon source at a carbon to nitrogen ratio of 200 for 72 h at 30 °C on a rotary shaker. The dry cell mass was assayed by GC analysis. All data are expressed as ± SD and represent the mean value of three parallel experiments

CDM cell dry mass (g/L), PHA total PHA content (wt %)