. 2016 Dec 23;54(1):228–235. doi: 10.1007/s13197-016-2454-y

Table 1.

Descriptions, references and intensity for sensory attributes

Attribute	Description	Reference material	Intensity (cm)
Bitterness	Basic taste sensation as found in caffeine solution	0.05%, 0.15%, 0.20% caffeine solution	2, 10, 15^a
Sourness	Basic taste sensation as found in citric acid solution	0.05%, 0.15%, 0.20% citric acid solution	2, 10, 15^a
Viscosity	Thickness of liquid as in carboxymethyl cellulose (CMC) solution	0.05%, 0.8% CMC solution	1.6, 13.7

^aAdapted from Meilgaard et al. (1999). The reference intensity was calculated as the mean rating of the group of ten panelists using a 15 cm unstructured line scale