PT - JOURNAL ARTICLE AU - W. Henry Blade AU - Roger Boulton TI - Adsorption of Protein by Bentonite in a Model Wine Solution AID - 10.5344/ajev.1988.39.3.193 DP - 1988 Jan 01 TA - American Journal of Enology and Viticulture PG - 193--199 VI - 39 IP - 3 4099 - http://www.ajevonline.org/content/39/3/193.short 4100 - http://www.ajevonline.org/content/39/3/193.full SO - Am J Enol Vitic.1988 Jan 01; 39 AB - The adsorption of bovine serum albumin by bentonite in model wine solutions was studied. The attainment of equilibrium was found to be rapid and complete within 30 seconds of the addition. The extent of adsorption was characterized using both the Langmuir and Freundlich equations. The constants and the goodness of fit were determined by linear regression of the transformed equations. The adsorption was independent of temperature but varied with protein content, pH, and ethanol content. A comparison of various types of bentonite showed that calcium bentonites had lower adsorptive capacities, even though their measured cation exchange capacities were similar.