Sorpční izotermy vlhkosti sušené syrovátky v teplotovém rozsahu 10oC -- 40oC

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F04%3A00001671" target="_blank" >RIV/62156489:43210/04:00001671 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Moisture sorption isotherms of whey powder spray in the temperature range of 10oC -- 40oC

Popis výsledku v původním jazyce

The paper presents results of water sorption tests of whey powder spray carried out under laboratory conditions and mathematical analyses of sorption isotherms. Moisture equilibrium data were investigated at air temperatures in the range of 10 - 40oC andwater activity ranging from 0.3 to 0.99. The experimental procedure used was a gravimetric dynamic method with the continuous registration of sample weight changes. A special laboratory drying device has been developed for the purpose. Sorption capacitydecreases as temperature increases. Rehydration of the dried material results in hysteresis but this phenomena was small. Four models of equilibrium moisture content/water activity (Chung-Pfost, Halsey, Henderson, and Oswin) were evaluated for their ability to fit data for the samples tested. The Henderon´s equation was a good model for moisture adsorption and desorption of whey powder spray.

Název v anglickém jazyce

Moisture sorption isotherms of whey powder spray in the temperature range of 10oC -- 40oC

Popis výsledku anglicky

The paper presents results of water sorption tests of whey powder spray carried out under laboratory conditions and mathematical analyses of sorption isotherms. Moisture equilibrium data were investigated at air temperatures in the range of 10 - 40oC andwater activity ranging from 0.3 to 0.99. The experimental procedure used was a gravimetric dynamic method with the continuous registration of sample weight changes. A special laboratory drying device has been developed for the purpose. Sorption capacitydecreases as temperature increases. Rehydration of the dried material results in hysteresis but this phenomena was small. Four models of equilibrium moisture content/water activity (Chung-Pfost, Halsey, Henderson, and Oswin) were evaluated for their ability to fit data for the samples tested. The Henderon´s equation was a good model for moisture adsorption and desorption of whey powder spray.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

GB - Zemědělské stroje a stavby

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2004

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Adsorption Science and Technology

ISSN

0263-6174

e-ISSN

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Svazek periodika

22

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

377-384

Kód UT WoS článku

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EID výsledku v databázi Scopus

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