278927.fig.001a
(a)
278927.fig.001b
(b)
278927.fig.001c
(c)
278927.fig.001d
(d)
278927.fig.001e
(e)
Figure 1: The effects of substrate concentration (a), E/S (b), pH (c), temperature (d), and incubation period (e) on the DH.