Study of drying of kappa-carrageenan gel at various temperatures using a fluorescence technique
Yükleniyor...
Dosyalar
Tarih
2008-01
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Taylor & Francis Inc
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The steady-state fluorescence technique was used to study drying of kappa-carrageenan gel at various temperatures. Pyranine was doped as a fluorescence probe, and scattered light, I-sc, and fluorescence intensities, I, were monitored during drying of these gels. It was observed that I decreased linearly as drying time is increased. The moving boundary model based on Case II diffusion was applied to produce the packing constants, k(0), at higher temperatures. Activation energy for drying was found to be 53.9 kJ mol(-1). Supporting gravimetric and volumetric measurements were also carried out during drying of gels and the corresponding activation energies were determined to be 46.4 and 58.9 kJ mol(-1), respectively.
Açıklama
Anahtar Kelimeler
Fast transient fluorescence, Poly(methyl methacrylate) gels, Kinetics, Curve, Model, Kappa-carrageenan, Fluorescence, Gel drying, Moving boundary model, Packing, Activation energy, κ-Carrageenan, Computer simulation, Diffusion, Drying, Gels, Gravimetric analysis, Volumetric analysis, Fluorescence technique
Kaynak
Drying Technology
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
26
Sayı
1
Künye
Tarı İlgin, Ö. & Pekcan, M. Ö. (2008). Study of drying of kappa-carrageenan gel at various temperatures using a fluorescence technique. Drying Technology, 26(1), 101-107. doi:10.1080/07373930701781728
