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

Table 1

Processing parameters of acetylated rice and waxy maize starch films with mucilage and glycerol as plasticizer, during the blown extrusion process.

Parameters processing	Units	Rice	Waxy maize
Speed screw (Vt)	rpm	25	25
Die ratio (Ro)	mm	12.15	12.15
Initial ratio of film (Ri)	mm	7.50	9.00
Final ratio of film (Rf)	mm	10.50	13.00
Initial thicknesses film (Ho)	mm	0.927	0.636
Final thicknesses film (Hf)	mm	0.160	0.097
Thicknesses relation (TR)		5.79	6.56
Blown relation (BUR)		1.40	1.44
Formation ratio (FR)		0.12	0.14
Die temperature (Td)	°C	105	105

Dimensionless parameters.