In accordance with DIN EN ISO
13299, a conventional profile was
established on the basis of five test
properties: sweetness intensity,
sweetness onset, sweetness duration,
bitter note and astringency
[30]. The sensory study and the
evaluation of sweetness intensity,
bitter note and astringency were
performed in accordance with method
00.90–DIN 10967 (profile test
[29]). The parameters “sweetness
onset” and “sweetness duration”
were measured in accordance with
DIN 10970 (time intensity test [31]),
but were modified, as the necessary
software was not available.