Patulin Adsorption Kinetics on Activated Carbon, Activation Energy and Heat of Adsorption |
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| Authors: | MEHMET MUTLU NILÜFER HIZARCIO&#;LU VURAL GÖKMEN |
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| Affiliation: | Author Mutlu is an associate professor in the Dept. of Food Engineering &Bioengineering Division, Hacettepe Univ., 06532 Ankara, Türkiye. Authors HizarcioĞlu and Gökmen are Research Assistants in the Dept. of Food Engineering, Hacettepe Univ., 06532 Ankara, Türkiye. |
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| Abstract: | The kinetics of adsorption of patulin on activated carbon were studied at different initial patulin concentrations (100–400 ppb) for the temperature range 20–80°C. Apparent adsorption rate constants (kaapp) were changed from 1.07 × 10?3 to 1.86 × 10?3 g?1 min?1 while the temperature increased from 20 to 80°C. For equilibrium adsorption curves; the Langmuir model was attempted and model parameters (K and Q°) were obtained for different temperatures. Energy of activation and heat of adsorption were determined in a batch adsorption system (Ea= 2.02 kcal/mol and ΔH = 2.24 kcal/mol). The adsorption occurred endothermically and by physical mechanisms. |
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| Keywords: | patulin juice adsorption kinetics activation energy heat of adsorption |
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