Degradation Kinetics of D-Galacturonic Acid and Sodium D-Galacturonate in Subcritical Water
作者： Rongchun Wang , Takashi Kobayashi , Shuji Adachi
DOI: 10.5458/JAG.56.181
关键词:
摘要: The degradation process of D-galacturonic acid in subcritical water was measured from 160 to 220°C. at any temperature obeyed first-order kinetics. dependence the rate constant could be expressed by Arrhenius equation, and activation energy frequency factor were estimated 131 kJ/mol 4.81 × 1012 s-1, respectively. sodium D-galacturonate also 190°C. Sodium galacturonate more easily degraded than galacturonic acid. did not obey kinetics, but Weibull equation. According 147 1.26 1015 respectively, for galacturonate. pH reaction mixture room both
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