DEVELOPMENT OF A HERBAL ICED TEA BEVERAGE FROM BROKEN MIXED FANNINGS(BMF) INCORPORATED WITH BUTTERFLY PEAFLOWERS (Clitoria ternatea)
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Date
2013
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Uva Wellassa University of Sri Lanka
Abstract
Tea has been used across the world for decades without any documentation about foodborn illnesses attributable to the good sanitation practices. Tea is proven to be a healthy beverage because of the chemical compounds that contain in tea. Therefore adding a natural herb to tea can amplify the quality and the value of the beverage. Consumption of herbal tea is a one of the methods that can be put into practice to have a healthy life. Clitoria ternatea is a thai herb and capable for lessen the risk of having different illnesess. The study was conducted to development of a herbal iced tea by using Clitoria ternatea flowers, Broken Mixed Fannings tea grade and mint flavor: Clitoria ternatea single petal blue flowers were collected and cleaned under running tap water. Then the flowers were air dried under room temperature and ground to obtain the desired particle size. By blending Clitoria ternatea flowers and Broken Mixed Fannings tea, five treatments were prepared. Sensory analysis was conducted by ten experienced tea tasters to acquire best dosage of Clitoria ternatea flowers and Broken Mixed Fannings tea for herbal iced tea development. Combinations of these functional ingredients extract were prepared and evaluated. Sensory Analysis was completed by using Kruskal-Wallis Test in Minitab software. Kruskal-Wallis macros were used to obtain the pairwise differences in the parameters. Conover-Inman Method was used for selection of best treatments. Sensory evaluation results exposed that there were significant differences between treatments with respects to color, taste, aroma, mouth feel and overall acceptability for beverage preference. The finding of microbial study was proved that total plate counts in the formulated beverages were secured to use even after kept for one and half months at room temperature. Results of physico-chemical analysis was revealed that even though the pH was decreased with the time the beverage was assured for the consumption compared with values of other beverages available in the market.
Keywords: Clitoria ternatea, broken mixed Fannings, Conover-Inman Method, Kruskal-Wallis Test, Sensory evaluation
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Tea Technology and Value Addition Degree Programme ( TEA)