Patulin adsorption kinetics on activated carbon, activation energy and heat of adsorption
JOURNAL OF FOOD SCIENCE, cilt.62, sa.1, ss.128-130, 1997 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 62 Sayı: 1
- Basım Tarihi: 1997
- Doi Numarası: 10.1111/j.1365-2621.1997.tb04382.x
- Dergi Adı: JOURNAL OF FOOD SCIENCE
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.128-130
- Hacettepe Üniversitesi Adresli: Evet
Özet
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 degrees C. Apparent adsorption rate constants (k(aapp)) were changed from 1.07 x 10(-3) to 1.86 x 10(-3) g(-1) min(-1) while the temperature increased from 20 to 80 degrees C. For equilibrium adsorption curves; the Langmuir model was attempted and model parameters (K and Q degrees) were obtained for different temperatures. Energy of activation and heat of adsorption were determined in a batch adsorption system (E(a) = 2.02 kcal/mol and Delta H = 2.24 kcal/mol). The adsorption occurred endothermically and by physical mechanisms.