lowering moisture content would raise the mass temperature in
the barrel, which would in turn increase percentage of gelatinised
starch. At high moisture (above 34%), the viscosity of the starch
inside the barrel would be low, allowing for extensive internal
mixing and uniform heating. which would account for enhanced
starch gelatinisation (Lawton, Hendeson, & Derlatka, 1972).
Increasing dough moisture content inside the extruder would also
increase both starch granule swelling and amylose leaching and, as
a result, percentage of gelatinised starch