In addition, difference in TceTo reflected the extent of heterogeneity of crystallites within the granules of native starch, HMT-20 and HMT-30. Cooke and Gidley (1992) suggest that the DH values represent the number of double helices that unravel and melt during gelatinization. The increase in DH values in HMT starch could be a result of greater amounts of double helices or stronger interaction between starch chains within the crystalline domains of
starch.