Repeated Heat-Moisture Treatment: a more EffectiveWay for Structural and Physicochemical Modification of Mung Bean Starch Compared with Continuous Way

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Effects of repeated heat-moisture treatment (RHM) and continuous heat-moisture treatment (CHM) on structural, physicochemical, and digestibility properties of mung bean starch were investigated. Rupture and scallops appeared on the surface of starch granules and some polarization cross disappeared after CHM and RHM. Besides, CHM starch exhibited severe rupture than RHM with the same treatment time. Crystal type of CHM and RHM starch maintained A-type while crystallinity decreased first but then increased as treating time increased. Besides, the relative crystallinity, transition temperatures, ΔH, and slowly digestible starch and rapidly digestible starch content of RHM were significantly higher than CHM whereas solubility, swelling power, and pasting viscosities of RHM samples were lower than CHM under the same treating time. Overall, RHM measures have more advantages than CHM in the modification of the structural, physicochemical, and digestibility properties of starch.

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Correspondence to Wenhao Li.

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Zhao, K., Zhang, B., Su, C. et al. Repeated Heat-Moisture Treatment: a more EffectiveWay for Structural and Physicochemical Modification of Mung Bean Starch Compared with Continuous Way. Food Bioprocess Technol (2020) doi:10.1007/s11947-020-02405-0

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  • Heat-moisture
  • Mung bean starch
  • Modification
  • Physicochemical property