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Figure 1
(a) Integrated SAXS–WAXS data measured for the native tapioca in excess water. The arrows indicate the lamellar peaks at q = 0.065 and 0.13 Å−1, the (100)H reflection at q = 0.40 Å−1 of hexagonal (B-type) crystals, and the characteristic twin peaks near 1.3 Å−1 of the monoclinic (A-type) crystals. SAXS data are fitted with the model comprising either arrayed elliptic plates (dotted curve) or disk plates (solid curve). (b) Optimal-fit Schultz distribution profiles for thicknesses of the crystalline and amorphous layers in semicrystalline lamellae of the native tapioca. The best-fitted structural parameters with arrayed elliptic plates are shown in the inset, where p is the corresponding polydispersity.

Volume 1| Part 6| October 2014| Pages 418-428
ISSN: 2052-2525