472626.fig.007a
(a)
472626.fig.007b
(b)
472626.fig.007c
(c)
472626.fig.007d
(d)
Figure 7: X-ray powder diffraction patterns of sodium alginate (a), OSA starch (b), PenG (c), physical mixture of OSA starch with sodium alginate (d), and PenG-loaded alginate/OSA starch beads (e).