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KMID : 0380619820140030197
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Korean Journal of Food Science and Technology
1982 Volume.14 No. 3 p.197 ~ p.202
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Kinetic Studies on the Thermal Degradation of Ginsenosides in Ginseng Extract
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최진호/Choi, Jin Ho
성현순/김두하/오성기/김우정/Sung, Hyun Soon/Kim, Doo Ha/Oh, Sung Ki/Kim, Woo Jung
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Abstract
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Kinetic study for the thermal degradation of ginsenosides in ginseng extract was conducted. The results indicate that the thermal degradation followed first order kinetics and rate constants varied substantially depending on the types of ginsenosides and heat treatment temperatures. Activation energy calculated by Arrhenius plots ranged from 16.80 ㎉/mole to 30.10 ㎉/mole and Q_(10) values ranged from 2.01 to 3.49. Correlation coefficients between the change of ginsenoside contents by thermal degradation and heat treatment temperature were 0.995∼0.999. The dependence on temperatures of the decomposition rate constant of total ginsenoside can be expressed as k=4.574×10^8 exp(8898.8/T).
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