| abstract |
The invention provides a method for removing bacterianfrom antibody-containing milk that has been expressed from a bovidnanimal'producing antibodies by sensitization with one or morenantigens selected from among pathogens and their metabolicnproducts, characterized in that defatting treatment is followednby filtration using amicrofilter comprising a support and a filternmembrane formed from ceramic fine particles, having filtrationnpores and a thickness between 40 to 150 µm. n The invention also provides a filter sterilizationnmethod which maintains the antibody activity ofnantibody-containing milk while efficiently removing bacterianfromthemilktoanearlyasepticlevel, as well as immunoactivatingnagents, foods, beverages and the like that comprisenantibody-containing milk wherefrom bacteria is removed by thenmethod as an effective ingredient thereof. |