Kinetics-based development of two-stage continuous fermentation of 1,3-propanediol from crude glycerol by Clostridium butyricum

Table 5 The production of 1,3-PDO in three-stage continuous fermentations

S_f	\(D_{1}\)	1,3-PDO (g/L)			Y_PDO	Q_PDO
(g/L)	(h⁻¹)	First stage	Second stage	Third stage	(g/g)	(g/(L·h))
90	0.222	42.94 ± 0.71	65.16 ± 0.54	74.25 ± 1.32	0.516	4.40
	0.256	38.89 ± 0.70	61.54 ± 0.97	73.86 ± 0.47	0.527	4.99
	0.279	37.59 ± 0.95	60.28 ± 0.84	73.11 ± 0.56	0.514	5.36
	0.321	34.82 ± 1.06	57.79 ± 1.22	70.40 ± 0.58	0.515	5.96
110	0.148	50.85 ± 0.45	69.31 ± 0.83	74.01 ± 1.07	0.486	2.95
	0.167	48.37 ± 2.52	69.95 ± 2.57	80.50 ± 1.53	0.484	3.67
	0.173	46.30 ± 0.86	67.17 ± 0.57	74.72 ± 1.00	0.512	3.38
	0.200	41.42 ± 0.83	64.36 ± 0.90	74.09 ± 0.26	0.523	3.84
130	0.143	53.82 ± 0.71	75.13 ± 0.73	78.51 ± 0.54	0.512	2.89

ISSN: 2731-3654