Storage period (Days)

Squash

Plain grape RTS

Grape-purple grape blend

Grape-phalsa blend

1

2

1

2

1

2

0

7.8 ± 0.37

7.5 ± 0.24

8.0 ± 0.41

8.0 ± 0.33

8.5 ± 0.53

8.5 ± 0.53

8.7 ± 0.30

60

7.5 ± 0.33

7.1 ± 0.16

8.0 ± 0.41

7.5 ± 0.33*

8.0 ± 0.47*

8.0 ± 0.37*

8.2 ± 0.35*

120

7.5 ± 0.28

7.0 ± 0.16*

7.6 ± 0.32*

6.8 ± 0.42*

7.5 ± 0.41*

7.5 ± 0.58*

7.5 ± 0.41*

180

7.0 ± 0.24*

6.8 ± 0.26*

7.0 ± 0.24*

6.5 ± 0.58*

7.4 ± 0.52*

7.5 ± 0.55*

7.5 ± 0.41*

(n = 10 panelists), 1= plain, 2=carbonated, * indicates significant difference compared to 0 days at P≤0.05
Table 4: Overall sensory score of sour grape beverages.