$60{sim}95^{circ}C$의 온도범위에서 보리전분희석액의 호화를 속도론적으로 조사분석하였다. 보리전분의 호화속도는 온도의존성이 컸으며 $90^{circ}C$ 이상에서의 호화는 1단계의 1차반응에 속하였으나 $85^{circ}C$ 이하에서는 2단계의 1차반응으로 구성됨을 확인하였다. $85^{circ}C$ 이하의 온도에서 반응제 1단의 반응속도는 반응제 2단의 경우에 비하여 큰값을 나타내었다. 반응제 1단의 활성화에너지는 31.93 Kcal/g mole 이었으며 반응제 2단의 활성화에너지는 $75^{circ}C$ 이상에서는 78.49 Kcal/g mole, $75^{circ}C$ 이하에서는 23.41 Kcal/g mole 이었다.
The gelatinization kinetics of barley starch in dilute system (1% w/v concn.) at the temperature range of $60{sim}95^{circ}C$ was investigated. The gelatinization rate was extremely temperature dependent. The gelatinization at the temperature above $90^{circ}C$ was an one step 1st order reaction throughout the gelatinization time, but that below $85^{circ}C$ consisted of two stages which showed different reaction rates. The reaction rate of the 1 st stage was greater than that of the 2nd stage. The activation energy of the 1 st stage was 31.93 Kcal/g mole and those of the 2nd stage were 78.49 and 23.41 Kcal/g mole above and below $75^{circ}C$, respectively.
