2.8. Sensory evaluation of yogurt
To evaluate the sensory properties of the product, the curd of yogurt, which was incubated at 20 °C for 20 h, was broken and kept in a refrigerator at 4 °C for 5 h. Afterwards, 20 panelists evaluated its overall acceptability, taste, odor, texture, etc., and each item was scored between 1 and 5 points, in which 1 is equal to worst and 5 is equal to best. Differences in preferences between the conventional yogurt and GABA soya yogurt were analyzed with Student’s T-test to evaluate significance of the differences.