Table 4.

Substrate specificity of recombinant AmyA1

Substrate (5 g/L)	Main linkage/monomer	Relative activity (%)a
Soluble starch	α- (1 → 4)-α- (1 → 6) glucose	100 ± 3.1
Maize starch	α- (1 → 4)-α- (1 → 6) glucose	74.1 ± 4.2
Potato starch	α- (1 → 4)-α- (1 → 6) glucose	81.3 ± 2.8
Amylose	α- (1 → 4) glucose	54.1 ± 1.9
Amylopectin	α- (1 → 4)-α- (1 → 6) glucose	69.2 ± 3.5
Glycogen	α- (1 → 4)-α- (1 → 6) glucose	46.1 ± 2.6
Pullulan	α- (1 → 6) glucose	8.2 ± 1.5
maltohexaose	α- (1 → 4) glucose	38.9 ± 3.8
maltopentaose	α- (1 → 4) glucose	30.5 ± 3.5
maltotetraose	α- (1 → 4) glucose	7.7 ± 1.7
maltotriose	α- (1 → 4) glucose	6.1 ± 1.3

^aThe data are the means of three independent experiments