Amylomaltase-treated starch (ATS) has been described as an excellent fat-replacer in set yoghurt. Its
functionality as a creaminess enhancer relates to the ability to form domains, which have melting and
yielding characteristics in the mouth. This study was intended to understand the functionality of ATS in
stirred yoghurt. Sensory evaluation of reduced fat stirred yoghurt samples showed that the creaminess
perception of stirred yoghurt with 1.5% fat and 0.5% ATS was comparable with the reference full fat
yoghurt containing 3% fat. This showed that ATS was even more effective as a creaminess enhancer in
stirred yoghurt than in set yoghurt. This was related to the higher effectiveness of domain formation
during storage after cooling in a dispersed system, as a result of stirring of the yoghurt gel, compared
with a gelled set-yoghurt system.