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卞裕亮,李神榮,曺亨勇 연세대학교 대학원 1981 延世論叢 Vol.18 No.1
The viscometric behavior of rice starch solution was studied with the capillary tube viscometer operated under various pleasures. Heated starch solution ranged from 3 to 9wt% were used as samples and flow constants in an equation r=(1/K)(gcτ- gcτy)n were determined by a non-linear least square method using the digital electronic computer. The value of flow behavior index n was found to be 1.2 in all samples. In the case of 3 and 5 wt% solutions, the values of yield stress could be overlooked, but the values of τy were relatively large and increased with the increase in concentration from 5 to 9 wt%. The temperatue dependence of flow consistency index K measured at 30~80℃ were expressed by Arrhenius equation. The values of activation energy were 3.5 to 10.2 kcal/mol.