Title of article :
Thermodynamic properties and moisture adsorption isotherms of cottonseed protein isolate and different forms of cottonseed samples Original Research Article
Author/Authors :
Sibel Tunç، نويسنده , , Osman Duman، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2007
Pages :
11
From page :
133
To page :
143
Abstract :
Moisture adsorption isotherms of fuzzy cottonseed, black cottonseed, whole cottonseed kernel, blended cottonseed kernel and its protein isolate were obtained using gravimetric static method at 15, 25, 35 and 45 °C. GAB, Halsey and Harkins–Jura equations gave the best fit to experimental data among 14 well-known equations tested. M0 values of samples calculated by G.A.B. and B.E.T. equations decreased with increasing temperature. The moisture adsorption isotherms obtained were type II sigmoidal. Thermodynamic properties such as differential enthalpy and entropy were determined from moisture adsorption data, using Clausius–Clapeyron equation. The experimental data showed that enthalpy–entropy compensation theory was applicable for the moisture adsorption behaviours of cottonseed samples and the adsorption process of samples was enthalpy-controlled.
Keywords :
Enthalpy–entropy compensation theory , Cottonseeds , Moisture adsorption isotherm , Protein isolate , Thermodynamic properties
Journal title :
Journal of Food Engineering
Serial Year :
2007
Journal title :
Journal of Food Engineering
Record number :
1167380
Link To Document :
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