TABLE 2.

Apparent kinetic isotope effects obtained for the methylene (CH₂) and methyl (CH₃) positions of ethanol produced by the fermentation of d-glucose

Fermentation no.	appKIE
	S. cerevisiae/S. bayanus			Z. mobilis			L. mesenteroides
	feth	CH2	CH3	feth	CH2	CH3	feth	CH2	CH3
	%			%			%
1	11.3	1.0000	1.0017	14.3	0.9991	1.0033	24.2	1.0068	1.0059
	49.1	0.9992	1.0012	30.1	0.9991	1.0034	58.1	1.0059	1.0073
	55.3	0.9988	1.0012	43.0	0.9985	1.0039
2	9.1	0.9991	1.0018	12.0	0.9997	1.0036	30.4	1.0055	1.0049
	11.6	0.9991	1.0014	17.5	0.9995	1.0036	57.1	1.0049	1.0044
	37.3	0.9997	1.0013	30.1	0.9994	1.0034	73.7	1.0057	1.0060
3	9.4	1.0001	1.0012	8.1	1.0003	1.0035
	52.6	0.999	1.0015	14.9	0.9998	1.0034
	60.2	0.9981	1.0014	26.2	0.9995	1.0038
Mean		0.9992	1.0014		0.9994	1.0035		1.0058	1.0057
S.D.		0.0006	0.0002		0.0005	0.0002		0.0007	0.0011