id="p0010">Hydrophilic calcium carbonate particles were in situ hydrophobised.
id="p0015">Ability of particles to stabilise foams depends on emulsifier structure.
id="p0020">Only simple anionic surfactants could be used to stabilise the interface.
id="p0025">Foams destabilised at pH 6 due to particle dissolution.
id="p0030">Foam stability was regained at pH 6 by addition of milk salts.