Research Article

Effects of Nopal Mucilage (Opuntia ficus-indica) as Plasticizer in the Fabrication of Laminated and Tubular Films of Extruded Acetylated Starches

Figure 2

SEM micrographs of the surface (left column, 50x) and internal structure (right column, 250x) of films based on acetylated waxy maize (a, b) and rice (c, d) starches plasticized with glycerol and nopal mucilage obtained by blown extrusion processes.
(a)
(b)
(c)
(d)