Abstract:
A study on the production of tea from Betong Watercress for the development of new products with 4 different roasting and drying processes was carried out. The result of acceptance test of appearance, odor, color, astringent and overall by 9 points hedonic scale showed that the unroasted sample drying at the temperature of 80 °C for 1 hour obtained the highest scores of tasted (6.03±1.67) and overall (6.03±1.86). The L*, a*, b* values of the Betong Watercress tea were 22.09, 2.70 and 4.45, respectively. The aw, moisture content and ash were 0.63, 9.37% and 8.39, respectively. The results of the study on the sensory perception of tea product from 2 different preparing methods (1. Soak tea bags ( 2 g/bag) in hot water (100 °C) of 150 cm3 2. Bring 2 g.of tea/water 100 cm3 and boiled at water 100 °C) revealed that the odor, the tasted and the astringent score were not significantly different (p≥0.05). The panelist revealed that the odor and taste characteristics were important characteristics of the tea. Considering the physical and chemical properties of the tea, the L*, a*, b* values were 11.73, 0.10 and 0.91, respectively. The pH was 5.19 and total acid value was 0.30% as citric acid.