Foot odor due to microbial metabolism and its control.

@article{Ara2006FootOD,
  title={Foot odor due to microbial metabolism and its control.},
  author={Katsutoshi Ara and Masakatsu Hama and Syunichi Akiba and Kenzo Koike and Koichi Okisaka and Toyoki Hagura and Tetsuro Kamiya and Fusao Tomita},
  journal={Canadian journal of microbiology},
  year={2006},
  volume={52 4},
  pages={
          357-64
        }
}
To characterize foot odor, we analyzed its components by sensory tests, isolated microorganisms that produce it, and evaluated the mechanism of the occurrence of foot odor. [] Key Result As a result, foot odor was found to be derived from isovaleric acid, which is produced when Staphylococcus epidermidis, a resident species of the normal cutaneous microbial flora, degrades leucine present in sweat.

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