Table 1.

Metabolites and cell yield

Strain	Media glucose, concentration	Steady-state A600*	Residual glucose, g/liter	EtOH g/liter	Yield,† cell no.	Yield,‡ biomass	No. of independent cultures
P	0.8§	0.61  ±  0.09¶	0.17  ±  0.07	0.27  ±  0.12	0.94	0.19	5
	2.4§	1.60  ±  0.09	0.18  ±  0.24	0.79  ±  0.21	1.02	0.14	5
E1	0.8	1.67  ±  0.12	0.04  ±  0.01	0.01  ±  0.01	3.43	0.59	4
E2	0.8	1.70  ±  0.18	0.06  ±  0.01	0.03  ±  0.02	4.34	0.67	4
E3	0.8	1.59  ±  0.18	0.05  ±  0.03	0.02  ±  0.02	4.49	0.45	4

^*Steady state was at a dilution of 0.2 h⁻¹. 

^†Units for cell no. yield is 10¹⁰ cells per gram of glucose. 

^‡Units for biomass yield is grams of dry cell weight per gram of glucose. 

^§Glucose concentration in the feed medium reservoir was varied. 

^¶Values are expressed as mean ± SD.