3.7. Effect of doping on manganese alginate gel beads morphology
Fig. 4 shows AFM clearly has the significant alterations of the
alginate gel beads topography after adding LPCS. Those control gel
beads connected as if there were silk-linking. The 3D image shows
the control gel beads profile is smooth with different height.
Conversely, for AFM research on gel beads after doping LPCS, it is
found that the beads change from rod-like in shape with a smooth
surface to a larger rod-like ultrastructure with a rougher surface.
Fig. 5 shows that the surface morphology of inverted microscope
(IM) about prepared gel balls is observed. The results show
that un-doped manganese alginate gel beads present simplex and
symmetrical internal structure, and there have been transparent
film. However, after doping LPCS, the surface morphology of the
optical microscope about prepared gel balls showed uniform
doping internal components, a rough surface, and increasing
permeability of the gel inside the ball. The structure of the doped
manganese alginate gel beads may have been propitious to the
binding reaction between the substrate and immobilized cells and
increased the binding sites between the immobilized yeast cells
and fermentable sugars in saccharification liquid. It was more