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Absorption Characteristics of and a Prediction Model for Spray-Dried Protein-bound Polysaccharide Powders isolated from Agaricus blazei Murill  

Hong, Joo-Heon (Bio Industry Center, Daegu Technopark)
Youn, Kwang-Sup (Department of Food Science and Technology, Catholic University of Daegu)
Publication Information
Food Science and Preservation / v.16, no.5, 2009 , pp. 719-725 More about this Journal
Abstract
We investigated the absorption characteristics of protein-bound polysaccharide powders of various molecular weights isolated from the mushroom Agaricus blazei Murill. The monolayer moisture content calculated using the GAB equation showed a higher level of significance than did the BET equation. The higher the water activity, the lower the isosteric heat of sorption. The fitness of the isotherm curve was shown to be in the order of the Khun, Oswin, Caurie and Henderson models. The prediction model equations for moisture content were established by use of ln(time), water activity, and temperature.
Keywords
Agaricus blazei Murill; protein bound polysaccharide; spray-dried powder; absorption characteristics; prediction model;
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