Insights into the capability of the lignocellulolytic enzymes of Penicillium parvum 4-14 to saccharify corn bran after alkaline hydrogen peroxide pretreatment

Table 2 Extracellular protein production by P. parvum 4-14 in liquid fermentation with different carbon sources

Carbon source	Protein concentration (mg/mL)		DCW (mg/mL)	Protein yield (mg/g DCW)
Carbon source	Original	After concentration	DCW (mg/mL)	Protein yield (mg/g DCW)
CBAX1	0.57 ± 0.10	3.58 ± 0.30	4.81 ± 0.42	117.8 ± 14.7
CBAX2	0.61 ± 0.04	3.07 ± 0.45	5.01 ± 0.37	122.5 ± 12.7
CBR	1.12 ± 0.19	5.79 ± 0.61	-	-

Fungal fermentation was carried out in 50 mL of 2 × Mandels' medium with 2% carbon source, and at 28 °C and 200 rpm for 8 days. For each group, 45 mL of fermentation supernatant was concentrated to 4 mL protein solution by salting-out and dialysis treatments. CBAX1 or 2, corn bran arabinoxylan 1 or 2; CBR, corn bran residue; DCW, dry cell weight; -, no analysis. Protein yields were calculated using the values of protein weight in the fermentation supernatant

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