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KMID : 1007519940030030198
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Food Science and Biotechnology
1994 Volume.3 No. 3 p.198 ~ p.200
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Kinetic Study of Acid Hydrolyzate of Dextran
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Imm Bue-Young
Lee Cherl-Ho
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Abstract
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The kinetics of acid hydrolysis of dextran, produced by Leuconostoc mesenteroides isolated from Sikhae, a Korean fermented fish product, was studied. Hydrolysis reactions were carried out at various temperatures between 50 and 80℃. A simple first-order reaction model was used for dextran hydrolysis reaction. Kinetic parameters were evaluated for three different hydrochloric acid concentrations (0.01, 0.1, and 1N). Activation energy, 25Kcal/mol, remained constant regardless of these reaction conditions. Acid concentration was more effective than time of acid treatment for the molecular weight reduction.
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