| 摘要 |
A liquid medium in which protein is dissolved, suspended, or dispersed is contacted with amorphous precipitated silica having, on a coating-free and impregnant-free basis, a surface area of from about 190 to about 600 square meters per gram, a pore diameter at the maximum of the volume pore size distribution function of from about 7 to about 30 nanometers and/or an average pore diameter by nitrogen adsorption of from about 3 to about 19 nanometers, and a total intruded volume of from about 2.3 to about 5 cubic centimeters per gram, whereby at least a portion of the protein is adsorbed by the amorphous precipitated silica. The process is particularly suitable for chillproofing beer. |
