調理科学分野への熱測定の応用 (第1報)

市販結晶・粒状調味料の溶解速度

抄録

Dissolution rates of some crystalline or granular seasonings, such as sodium glutamate and sodium glutamate-sodium 5'-ribonucleotide (granule or coating type) were estimated by measuring the heat of dissolution with a dewar flask calorimeter. The dissolution of the seasonings followed the first order kinetics except the compound seasoning of salt coated with sodium glutamate and sodium 5'-ribonucleotide. The dissolution rate depended on size of the granule and temperature. The rate constants were 10^-1-10^-2 sec^-1 and the half life of the dissolution was 5-14 sec at the room temperature. The activation energy of the dissolution of sodium glutamate was 11.4 kcal/mol.