Properties of “Kowameshi, ” which was prepared by cooking not by steaming of glutinous rice either with water or with Adzuki bean aqueous extract, were investigated.
The results obtained were as follows :
1. Water absorption of glutinous rice pre-soaked in Adzuki bean extract was less than that presoaked in water.
2. The relative viscosity of 3% of glutinous rice gruel made with Adzuki bean extract was found to be smaller than this of gruel made with water. While viscosity of the latter was decreased by the addition of salt, this of former was increased.
3. When the mixture of glutinous rice and Adzuki bean extract was cooked, bubble were generated more as compared the case of the mixture of rice and water. Consequently, when “Kowameshi” was prepared with Adzuki bean extract, evaporation of water in cooking was much, water content of “Kowameshi” was less, and weight of it was less.
4. Hardness of “Kowameshi” was measured by the texturometer. The value of “Kowameshi” cooked with Adzuki bean extract was greater than that cooked with water, and the both value became small when those were cooked with a little of salt.
5. Swelling of rice grains in “Kowameshi” cooked with Adzuki bean extract was smaller than that of grains in “Kowameshi” cooked with water.
6. In the sensory tests, the significant difference was found between “Kowameshi” prepared by water and that prepared by Adzuki bean extract. The latter was evaluated better than the former, when those were cooked with a little of salt.
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