Table 2.

β-Cyclization and hydrolysis activities of CGTases on potato starch

Enzyme	β-Cyclization (µmol min−1 mg−1)	Hydrolysis (µmol min−1 mg−1)	Cyclization/hydrolysis ratio
B. sp. strain A2-5a	94 ± 2	0.3 ± 0.04	313
B. circulans strain 251	265 ± 5	2.1 ± 0.1	126
B. stearothermophilus NO2	255 ± 6	1.4 ± 0.1	182
B. circulans strain no. 8	52 ± 2	0.3 ± 0.01	173
Tabium	255 ± 7	57 ± 1.8	4.5
Toruzyme	127 ± 5	78 ± 5	1.6
K. pneumoniae M5a1	0.5 ± 0.02	0.3 ± 0.03	1.7
A. gottschalkii	28 ± 2	7.7 ± 0.5	3.6
Thermococcus sp B1001	23 ± 1	5.6 ± 0.3	4.1