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KMID : 0903519900330010014
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Journal of the Korean Society of Agricultural Chemistry and Biotechnology
1990 Volume.33 No. 1 p.14 ~ p.17
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Comparison of Sorption Characteristics of Several Soybean Varieties
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Abstract
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Seven varieties of soybeans(Paldal, Danyeob, Jangbaek, Baegun, Jangyeob and 2 cultivars of Local 1 and Local 2) were investigated to compare the sorption characteristics during storage of various relative humilities. The sorption isotherm curve determined at RH range of 33∼92 % and 4 ℃ and 25 ℃ showed that moisture contents of soybeans was higher at 4 ℃ than those values at 25 ℃ for overall water activities of 0.33∼0.92. The Paldal was the highest moisture content at 4 ℃ while that value of Baegun was the highest at 25 ℃. The change in moisture content with storage time was expressed by log(dw/dt)=b log(t)＋log a and the value of (dw/dt)×10³was decreased logarithmically. The Paldal was comparatively the highest initial absorption rate and the value of -b in seven varieties decreased as the relative humidity increased from 33 % to 92 %.
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KEYWORD
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