the enzyme
was active at alkaline pH of 8.0 to 13.0, with optimum pH
9.0 (12.2 U/ml/min) indicating broad pH range for enzyme
activity. Maximum amylase activity from
Bacillus sp.
G
M8901 with optimum pH 11.0
to
12.0 was reported by
Kim
et al.
(1995
).
Similarly,
Yang
et al
. (
2011)
reported
that the recombinant alkaline
α
-
amylase from
Bacillus
alcalophilus
in
Bacillus subtilis
was stable at pH from
7.0
to 11.0 with an optimum pH of 9.5.