Production of ginsenoside compound K from American ginseng extract by fed-batch culture of Aspergillus tubingensis

AMB Express

Table 3 Effect of total added concentration of age on C-K production in fed-batch fermentation of A. tubingensis

AGE (g/L)	C-K_max (g/L)	Y_P/S (g/g)	Y_P/AGE (g/g)	q_P (mg/L/h)	Molar conversion (%)	f_t (h)
8	1.91 ± 0.00	0.03 ± 0.000	0.24 ± 0.000	13.2 ± 0.00	100 ± 0.0	144
12	2.69 ± 0.08	0.04 ± 0.001	0.22 ± 0.006	18.6 ± 0.52	93.4 ± 2.6	144
16	3.47 ± 0.03	0.06 ± 0.001	0.22 ± 0.002	24.1 ± 0.21	90.4 ± 0.8	144
20	3.94 ± 0.01	0.07 ± 0.002	0.20 ± 0.001	27.4 ± 0.07	82.1 ± 0.2	144
24	3.56 ± 0.03	0.06 ± 0.001	0.15 ± 0.001	22.8 ± 0.16	61.8 ± 0.4	156
32	3.54 ± 0.02	0.06 ± 0.001	0.11 ± 0.001	21.1 ± 0.12	46.1 ± 0.3	168