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KMID : 0380619790110030188
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Korean Journal of Food Science and Technology
1979 Volume.11 No. 3 p.188 ~ p.191
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Decomposition of Guanosine - 5 ´ - Monophosphate by Heat Treatment
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이재흥/Lee, Jae Heung
유주현/김홍집/배종찬/고중환/Yu, Ju Hyun/Kim, Hong Jip/Bae, Jong Chan/Ko, Jung Hwan
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Abstract
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The heat decomposition rate of guanosine-5´-monophosphate teas investigated in pH range from 5.52 to 7.00, and 0.1 of the ionic strength. The result showed that the rate was a first-order eaction and the rate of guanosine-5´-monophosphate loss was maximum near pKa₂
The loss of guanosine-5´-monophosphate was temperature dependent and followed to the Arrhen ius equation in the temperature region from 93℃ to 108℃.
The rate constant as function of temperature (93° to 108℃) and neutral pH(pKa₂, 6.0, to 7.0) was correlated by least-square fit of the experimental data;
K=4.19×10^(26) exp [-1.3(pH+E/RT)]
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