3.3. Sensory testing
Whey separation refers to the spontaneous appearance of whey
on the milk gel surface and is called wheying-off. The incubation
temperature at 42 C and the protein level at 4% and 5%, respectively,
were not expected to highlight any syneresis problems. In
fact, no syneresis was observed for the whole milk yoghurts.
However, at the low-fat level a slight syneresis was observed but
was reduced by Actilight addition.