Summary
Antigen-antibody reactions in agar, modified from the technic of Oudin, have been used to determine the minimum number and to some extent relative concentrations of antigens in enterotoxic solutions at various stages of purification. A simple technic has been devised for direct identification of antigens responsible for bands appearing in different tubes. Resolution of superimposed bands has been accomplished by diluting the antigen mixture. An example of quantitative data which can be used to determine relative concentrations of antigens in fractions of a mixture is presented. Some aspects of practical application in the fractionation of mixtures of antigenic materials are discussed. Staphylococcal enterotoxin has not as yet been identified with a precipitating antigen demonstrable by these methods.
Footnotes
-
↵1 This work was supported by contributions from various companies and associations of the food industries.
- Received May 12, 1952.
- Copyright © 1952 by The American Association of Immunologists, Inc.
Pay Per Article - You may access this article (from the computer you are currently using) for 1 day for US$37.50
Regain Access - You can regain access to a recent Pay per Article purchase if your access period has not yet expired.