Differential Scanning Calorimetry of Mung Bean Starch

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Abstract
Mung bean starch‐water mixtures at water content between 13.6% and 90.2% (volume fraction of water V1 0.20 and 0.94) were studied by differential scanning calorimetry (DSC) and subjected to microscopic examinations afterwards. Only a monophasic endotherm appeared for water contents above 67% while for water contents between 67% and 37.3% a biphasic endotherm was found by DSC. No endothermic transition was observed for water levels below 37.3%. The melting temperature of the most perfect crystallites was correlated to the volumetric fraction of water, thus, enthalpy, entropy and extrapolated melting temperature of the transition were calculated.