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  • Moisture sorption isotherms of yoghurt powder spray were determined using a gravimetric dynamic method with continuous recording of changes in sample weight. Equilibrium data for adsorption and desorption of water from yoghurt powder spray were investigated at ambient temperatures in the range of 20 to 40oC and water activity ranging from 0.40 to 0.99. Sorption capacity decreased as temperature increased. Four models available in the literature (Chung-Pfost, Halsey, Henderson and Oswin) were evaluated by determining the best fit to the experimental data. The modified Chung-Pfost equation was found to be a good model for moisture adsorption and desorption of yoghurt powder spray. The critical value of equilibrium moisture content of samples tested, corresponding to the water activity equal 0.6, was 8.1--8.9 %(wet basis) at the temperature of 20oC.
  • Moisture sorption isotherms of yoghurt powder spray were determined using a gravimetric dynamic method with continuous recording of changes in sample weight. Equilibrium data for adsorption and desorption of water from yoghurt powder spray were investigated at ambient temperatures in the range of 20 to 40oC and water activity ranging from 0.40 to 0.99. Sorption capacity decreased as temperature increased. Four models available in the literature (Chung-Pfost, Halsey, Henderson and Oswin) were evaluated by determining the best fit to the experimental data. The modified Chung-Pfost equation was found to be a good model for moisture adsorption and desorption of yoghurt powder spray. The critical value of equilibrium moisture content of samples tested, corresponding to the water activity equal 0.6, was 8.1--8.9 %(wet basis) at the temperature of 20oC. (en)
  • Modelování sorpčních izoterem vlhkosti jogurtu sušeného v rozprašovací sušárně. (cs)
Title
  • Modelling the water sorption isotherms of yoghurt powder spray
  • Modelling the water sorption isotherms of yoghurt powder spray (en)
  • Modelování sorpčních izoterem vlhkosti jogurtu sušeného v rozprašovací sušárně (cs)
skos:prefLabel
  • Modelling the water sorption isotherms of yoghurt powder spray
  • Modelling the water sorption isotherms of yoghurt powder spray (en)
  • Modelování sorpčních izoterem vlhkosti jogurtu sušeného v rozprašovací sušárně (cs)
skos:notation
  • RIV/62156489:43210/04:00001649!RIV/2005/MSM/432105/N
http://linked.open.../vavai/riv/strany
  • 157;164
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • Z(MSM 432100001)
http://linked.open...iv/cisloPeriodika
  • 1-2
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
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  • 574070
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  • RIV/62156489:43210/04:00001649
http://linked.open...riv/jazykVysledku
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  • Adsorption;desorption;isotherm;modelling;moisture;water activity (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [5D011CB6DCAD]
http://linked.open...i/riv/nazevZdroje
  • Mathematics and Computers in Simulation
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 65
http://linked.open...iv/tvurceVysledku
  • Štencl, Jiří
http://linked.open...n/vavai/riv/zamer
issn
  • 0378-4754
number of pages
http://localhost/t...ganizacniJednotka
  • 43210
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