Temperature Dependence of Initial Adsorption Rate of Soybean

콩의 초기 흡습속도의 온도의존성

  • Kim, Jong-Goon (Department of Home Economics, King Sejong University) ;
  • Kim, Sung-Kon (Department of Food Science and Nutrition, Dankook University)
  • 김종군 (세종대학교 가정학과) ;
  • 김성곤 (단국대학교 식품영양학과)
  • Published : 1989.06.01

Abstract

The initial moisture adsorption of soybeans was examined under the conditions : RH, 57-86% ; temperature, $16^{\circ}-34^{\circ}C$, and storage time, 100 hours. The changes in moisture content as a function of time held a relation: log dw/dt=b log t + log a, where w is the moisture content (%, db), t is time (hour) and a and b are the parameters which were calculated from the experimental data. The calculated moisture content from the equation agreed well with the measured moisture content. The activation energy of initial adsorption rate was about 15500cal/g-mole in all soybeans. The initial adsorption rate at temperature $16^{\circ}-28^{\circ}C$ could be estimated from a following equation : log(log dw/dt)=-15500/2.303RT.

Keywords

soybean;moisture adsorption of soybean