Metabolism of Chicken Feathers and Concomitant Electricity Generation by Pseudomonas aeruginosa by Employing Microbial Fuel Cell (MFC)

Table 1

Effect of carbon sources on growth, soluble protein, and keratinase activity.

Carbon source (0.1% w/v)	Growth (OD 600 nm)^a	Protein (μg/mL)^a	Keratinase activity (U/mL)^a
Control	0.282±0.015	139.7±9.7	7.1±0.3
Glycerol	0.249±0.011	102.9±4.9	6.4±0.32
Fructose	0.214±0.007	124.2±4.6	6.8±0.26
Galactose	0.243±0.012	60.2±4.6	5.2±0.25
Sucrose	0.506±0.014	79.4±3.4	6.5±0.3
Glucose	0.164±0.022	68.4±2.6	4.5±0.24
Maltose	0.211±0.013	130.8±7.2	7.5±0.35
Mannitol	0.32±0.019	109.5±7.9	5.5±0.21
Malt extract	0.237±0.018	175.3±9.4^∗	8.6±0.31^∗
Lactose	0.319±0.006	128.7±9.1	6.3±0.32
Starch	0.28±0.011	169.7±8.5^∗	8.0±0.14^∗

aValues are mean ± standard deviation of three independent experiments.
*Significantly different from control at 95% confidence level.