Skip to main content
. 2023 Jan 14;12(2):405. doi: 10.3390/foods12020405

Table 3.

Values of TPC (mg GAE/g) and RSA (μM Trolox/g) of the yogurt without and with tannins during cold storage and results of variance analysis with Duncan’s test (p = 0.05) performed between the tannins and the storage times.

Tannin Addition TPC
Day1 Day7 Day14 Day21 Significance
Control - 0.03 ± 0.00 Ja 0.03 ± 0.00 Ka 0.03 ± 0.00 Ja 0.03 ± 0.00 Ka ns
ARB 0.50% 1.06 ± 0.01 Ia 0.97 ± 0.03 Ha 0.82 ± 0.03 Ib 0.79 ± 0.03 Ic ***
1% 2.73 ± 0.01 Da 2.54 ± 0.07 Db 1.89 ± 0.03 Dc 1.46 ± 0.12 Ed ***
C 0.50% 1.19 ± 0.03 Ha 1.07 ± 0 Jb 0.78 ± 0.03 Ib 0.49 ± 0.02 Gc ***
1% 2.24 ± 0.04 EFa 2.01 ± 0.01 Eb 1.41 ± 0.01 Fc 0.97 ± 0.02 Fd ***
FNG/R 0.50% 2.26 ± 0.03 Ea 1.95 ± 0.05 Fb 1.66 ± 0.09 Ec 1.29 ± 0.04 Fd ***
1% 4.49 ± 0.13 Aa 4.39 ± 0.08 Ab 3.89 ± 0.02 Ab 3.69 ± 0.03 ac ***
NN 0.50% 1.21 ± 0.01 Ha 0.96 ± 0.05 Jb 0.9 ± 0.01 Hc 0.77 ± 0.02 Id ***
1% 2.17 ± 0.03 Fa 2.06 ± 0.03 Eb 1.84 ± 0.06 Dc 1.6 ± 0.01 Dd ***
QF 0.50% 1.53 ± 0.01 Ga 1.46 ± 0.03 Ib 1.23 ± 0.04 Gc 1.11 ± 0.05 Gc ***
1% 3.27 ± 0.01 Ca 3.02 ± 0.01 Cb 2.85 ± 0.06 Cc 2.64 ± 0.1 Cd ***
QS-SOL 0.50% 2.22 ± 0.08 EFa 2.09 ± 0.03 Gb 1.92 ± 0.05 Dc 1.6 ± 0.08 Bd ***
1% 3.98 ± 0.08 Ba 3.79 ± 0.14 Db 3.7 ± 0.04 Bc 3.39 ± 0.04 Bc ***
Significance *** *** *** ***
Tannin Addition RSA
Day1 Day7 Day14 Day21 Significance
Control - 0.03 ± 0.00 Ia 0.03 ± 0.00 Ka 0.02 ± 0.00 Ga 0.03 ± 0.00 Ga ns
ARB 0.50% 5.77 ± 0.44 Ga 4.94 ± 0.58 Ib 3.68 ± 0.07 Ec 3.86 ± 0.23 Ec ***
1% 9.19 ± 0.13 Ca 9.04 ± 0.25 Da 7.27 ± 0.36 Cb 7.04 ± 0.03 Cc ***
C 0.50% 4.89 ± 0.01 Ha 4.02 ± 0.01 Gb 3.02 ± 0.02 Fc 3.05 ± 0.09 Fd ***
1% 8.92 ± 0.03 CDa 8.33 ± 0.08 Ea 7.02 ± 0.04 Cb 6.22 ± 0.14 Dc ***
FNG/R 0.50% 8.49 ± 0.04 Ea 7.81 ± 0.13 Fb 7.37 ± 0.04 Cc 6.82 ± 0.11 CDd ***
1% 17.41 ± 0.38 Aa 15.74 ± 0.14 Ab 14.35 ± 0.06 Ac 12.91 ± 0.51 Ad ***
NN 0.50% 4.84 ± 0.10 Ha 4.32 ± 0.03 Gb 3.18 ± 0.02 Fc 2.95 ± 0.11 Fc ***
1% 8.67 ± 0.21 DEa 8.19 ± 0.11 Eb 7.26 ± 0.30 Cc 6.29 ± 0.39 CDd ***
QF 0.50% 5.79 ± 0.07 Ga 5.36 ± 0.06 Hb 4.89 ± 0.05 Dc 4.47 ± 0.15 Ec ***
1% 11.67 ± 0.02 Ba 11.15 ± 0.07 Ca 9.86 ± 0.24 Bb 8.31 ± 0.67 Bb ***
QS-SOL 0.50% 6.81 ± 0.20 Ea 6.55 ± 0.32 Ga 4.98 ± 0.41 Db 4.19 ± 0.94 Eb ***
1% 11.89 ± 0.02 Ba 11.51 ± 0.04 Ba 9.95 ± 0.21 Bb 8.08 ± 0.73 Bc ***
Significance *** *** *** ***

Data (mean ± standard deviation; n = 3) were expressed as dry weight. Means followed by different lowercase letters indicate significant difference at p < 0.05 among tannins; means followed by different uppercase letters indicate significant difference at p < 0.05 between storage times; ns not significant; *** p < 0.001.