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KMID : 1007519940030010014
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Food Science and Biotechnology
1994 Volume.3 No. 1 p.14 ~ p.19
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Effects of Ionizing Energy Treatment on Water Absorption Property of Soybeans
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Byun, Myung-Woo
Na, Sang-Myungm/Song, Hi-Sup/Kwon, Joong-Ho/Mori, Tomohiko
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Abstract
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Effects of gamma irradiation (2.5∼20kGy) on water absorption property were studied for a local variety of soybean (Glycine max), Hwangkeum. In water absorption patterns of soybeans, the time to reach a fixed moisture content was reduced depending on the increments of water soaking temperature and irradiation dose. Irradiation at 2.5∼10kGy resulted in a reduction in soaking time of soybeans by about 2∼5 hours and an increase in hydration capacity by 10∼20%, compared to the nonirradiated control sample. The water uptake rate constant of the irradiated sample definitely increased with
increasing dose levels. The activation energy for water absorption and z-value were lower in the irradiated sample than in the nonirradiated control sample. The irradiation efficacy on water absorption properties was also recognized in the stored soybeans for one year at room temperature.
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KEYWORD
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