TABLE 1.

Maximum values^a of specific rates of product formation and consumption, of molar growth yield, and of energetic yield of biomass obtained in the course of the batch fermentations of C. cellulolyticum

Initial concn [mM hexose eq (g liter−1)] of cellulose or cellobiose	q value (mmol [g of cells]−1 h−1) for:				Extracellular qpyruvate (μmol [g of cells]−1 h−1)	μmax (h−1)	YX/S ([g of cells] [mol of hexose eq]−1)	YATP ([g of cells] [mol of ATP]−1)
	Hexose	Ethanol	Acetate	Lactate
Cellulose
5.6 (0.9)	1.42	0.90	1.20	0.06	9.68	0.055	36.8	18.9
14.8 (2.4)	1.78	1.02	1.39	0.08	10.17	0.056	36.5	19.5
24.1 (3.9	1.93	1.43	1.68	0.14	30.59	0.057	35.7	21.2
41.4 (6.7)	1.99	1.51	1.79	0.40	49.35	0.056	34.7	22.8
78.4 (12.7)	2.06	1.09	1.61	0.58	80.38	0.057	25.5	12.4
116.07 (18.9)	2.13	0.98	1.58	0.74	81.45	0.055	25.9	13.8
179.6 (29.1)	2.19	0.97	1.51	1.17	78.60	0.056	25.6	13.3
Cellobiose
46.8 (8.0)	10.71	1.98	3.70	2.64	155.80	0.154	31.6	23.2

^aValues are the averages of three different experiments and were determined with an average accuracy of ±10%. 

^bThe values were the maximum ones encountered during the entire incubation time and were not calculated over the same period of time.