Scale-up of anaerobic 1,3-propanediol production by Clostridium butyricum DSP1 from crude glycerol

BMC Microbiology

Table 3 The most promising bacteria strains capable of efficient 1,3-PD synthesis from crude glycerol

Strain	Fermentation method	C_1,3-PD[g/L]	Y_1,3-PD[g_1,3-PD/g_Gly]	Crude glycerol purity (% w/w)	Ref.
C. butyricum AKR102a	Fed-batch	76.2	0.51	55	[28]
C. butyricum VPI 1718	Fed-batch	67.9	0.55	81.0	[29]
Clostridium sp.	Fed-batch	80.1	0.56	ND	[28]
C. butyricum DSP1	Fed-batch	71.0	0.54	85.6	Present study
K. pneumoniae DSM 4799	Fed-batch	80.2	0.45	80.0	[47]
K. pneumoniae DSM 2026	Fed-batch	53.0	ND	85.0	[48]
K. oxytoca FMCC-197	Fed-batch	50.1	0.40	81.0	[31]
C. freundii FMMC-B 294 (VK-19)	Fed-batch	68.1	0.40	81.0	[30]
Mix culture	Fed-batch	70.0	0.47	81.0	[44]

ND – non-designated, C_{1,3-PD –} maximal final 1,3-PD concentration obtained, Y_1,3-PD – maximal yield of glycerol conversion to 1,3-PD obtained.

ISSN: 1471-2180