Sorry for resurrecting a zombie thread, but I found this while trying to search for one of my old posts in the Ulcerative Colitis forum (searched quorum, assuming it'd be a term not oft used).
I use a product specifically for its bacterial quorum-disruption properties - it's called Live Leaf, and can be found on amazon (gut rescue - the red one, is the one you want). It works exactly as expected, and maintains my UC remissions.
So, hopefully this aids someone over here...?
Here's my post, if anyone wants to know more.https://www.healingwell.com/community/default.aspx?f=38&m=4144681