Research Article

RSM Based Optimization of Chemical and Enzymatic Transesterification of Palm Oil: Biodiesel Production and Assessment of Exhaust Emission Levels

Figure 4

Response surface plots (a)–(h) showing significant first order interactions among different reaction parameters involved in palm oil biodiesel production via base catalyzed transesterification and response surface plots (i)–(n) showing significant first order interactions among different reaction parameters involved in palm oil biodiesel production via enzyme catalyzed transesterification.
526105.fig.004a
(a)
526105.fig.004b
(b)
526105.fig.004c
(c)
526105.fig.004d
(d)
526105.fig.004e
(e)
526105.fig.004f
(f)
526105.fig.004g
(g)
526105.fig.004h
(h)
526105.fig.004i
(i)
526105.fig.004j
(j)
526105.fig.004k
(k)
526105.fig.004l
(l)
526105.fig.004m
(m)
526105.fig.004n
(n)