hydrolysis of starch; whereas there are other studies in which no
significant change in starch crystallinity was observed (and thus it
was concluded that – at least during the assay interval studied –
hydrolysis occurred simultaneously in both order and disordered
regions of starch). Moreover, simultaneous partial disorganization
of starch induced by shear promoted during long hydrolysis
intervals with enough stirring speed required to keep starch in
suspension, may also be a plausible cause of crystallinity reduction.
Finally, and going back to the increasing-decreasing pattern of
CI illustrated in Fig. 5, reduction of CI after the 6 h period clearly
observed by use of the deconvolution and two-phase methodologies,
suggests that extensive hydrolysis effectively destroys and
solubilizes the crystalline areas of the granules. Lauro et al. (1999)
also observed that crystallinity and gelatinization enthalpy of barley
starches decreased during the later stages of -amylolysis,
which Zhou et al. (2004) attributed to extensive hydrolysis that
effectively destroyed and solubilized the crystalline areas of starch
granules.
hydrolysis of starch; whereas there are other studies in which no
significant change in starch crystallinity was observed (and thus it
was concluded that – at least during the assay interval studied –
hydrolysis occurred simultaneously in both order and disordered
regions of starch). Moreover, simultaneous partial disorganization
of starch induced by shear promoted during long hydrolysis
intervals with enough stirring speed required to keep starch in
suspension, may also be a plausible cause of crystallinity reduction.
Finally, and going back to the increasing-decreasing pattern of
CI illustrated in Fig. 5, reduction of CI after the 6 h period clearly
observed by use of the deconvolution and two-phase methodologies,
suggests that extensive hydrolysis effectively destroys and
solubilizes the crystalline areas of the granules. Lauro et al. (1999)
also observed that crystallinity and gelatinization enthalpy of barley
starches decreased during the later stages of -amylolysis,
which Zhou et al. (2004) attributed to extensive hydrolysis that
effectively destroyed and solubilized the crystalline areas of starch
granules.
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