This is not my area, but you might find some helpful information in the articles below.
Good luck!
Frank
Chifu et al (2011) Short- and medium-chain fatty acids exhibit antimicrobial activity for oral microorganisms. Archives of Oral Biology 56 (7) 650-654
Shilling et al (2013) Antimicrobial Effects of Virgin Coconut Oil and Its Medium-Chain Fatty Acids on Clostridium difficile. Journal of Medicinal foods. Volume: 16 Issue 12: December 13, 2013