Conversion of cellulose and hemicellulose of biomass simultaneously to acetoin by thermophilic simultaneous saccharification and fermentation

Table 3 Acetoin production from lignocellulosic biomass by acetoin producers

Strain	Biomass	Fermentation process	Tem.^a (°C)	Con. (g L⁻¹)	Pro.^b (g L⁻¹ h⁻¹)	Refs.
B. subtilis IPE5-4-UD-4	Pretreated corncob	Batch SSF, 5-L bioreactor	50; 50	22.76	0.38	This study
K. pneumoniae CICC 10011	Pretreated Jerusalem artichoke stalks	Batch SSF, 5-L bioreactor	37; 37	13.47	0.20	[9]
E. coli	Cellulose	Batch SSF, shake flask	37; 37	2.70	0.02	[13]
E. cloacae SDM 53	Pretreated corn stover	Fed-batch SHF, 7.5-L bioreactor	NA; 37	45.60	1.52	[23]
K. pneumoniae CICC 10011	Pretreated Jerusalem artichoke stalk and tuber	Fed-batch SHF, 5-L bioreactor	50–55; 37	11.40	0.16	[9]
E. coli DSM02-B	Pretreated brown seaweed	Fed-batch SHF, shake flask	50; 37	4.80	0.07	[12]
E. coli mlc-XT7-LAFC-YSD	Pretreated Japanese cedar wood chips	Batch SHF, shake flask	37; 30	19.00	0.16	[24]
K. pneumoniae CICC 10011	Pretreated Jerusalem artichoke stalk and tuber	Batch SHF, 5-L bioreactor	50–55; 37	11.80	0.23	[9]
Engineered Zymomonas mobilis 22C–BC5	Pretreated corn stover	Batch SHF, shake flask	50; 33	> 10.00	NA	[10]

Tem. temperature, Con. concentration, Pro. productivity, Ref. references, NA not available
^aTemperature was indicated as the enzymatic saccharification temperature followed by the fermentation temperature
^bAcetoin productivity was calculated by the concentration of acetoin (g L⁻¹) presenting in the references/substrate consumption time (h)

ISSN: 2731-3654