(P = 0.1441). This result indicated that judgeswere not able to identify
the differences between UHT and UHPH soymilks.
The second test performed to assess sensory analysis was a descriptive
test. In this test some characteristic attributes of soy products such
as beany flavor, grassy aroma, oxidized aroma, astringent mouthfeel,
thickness and color (darkness) were evaluated. Results for each day of
analysis are shown in Fig. 3. For astringencymouthfeel, panel evaluation
at day 1 classified UHT soymilks with higher mouthfeel astringency
than UHPH soymilks (P b 0.05). Similar tendency was obtained at day
90 of storage, whereas no significant differences were observed at day
180. Astringent mouthfeel may have originated from phenolic compounds
such as isoflavones and saponins which were reported as the
main non-volatile off-flavors in soy products