The adsorption of iodine from solution by micro-organisms and by serum

Abstract

The uptake of iodine by baker’s yeast, serum, E. coli and Staph. aureus from aqueous dilutions of an iodine non-ionic surface-active agent complex was compared with that from aqueous dilutions of an ethanol and potassium iodide solution. The form of adsorption isotherms depended upon the iodine system and the substrate. A characteristic of all isotherms was the high affinity at low iodine concentrations. Except where high ethanol concentrations remained, uptake was greater from the ethanol: potassium iodide dilutions. The pH of the iodine system also influenced the uptake, the effect varying with the iodine system and the substrate.