IMPLEMENTATION OF RANK ORDER CENTROID AND SIMPLE ADDITIVE WEIGHTING METHODS FOR SENSORY EVALUATION OF BREWED PRODUCTS FROM BLUE PEA (Clitoria Ternatea L.) FLOWER AND PEPPERMINT (Mentha Sp.)
Abstract
This study investigates the sensory evaluation of brewed
products derived from Blue Pea (Clitoria ternatea L.) flowers
combined with Peppermint (Mentha sp.). Multiple Attribute
Decision Making (MADM) methods, specifically Rank Order
Centroid (ROC) and Simple Additive Weighting (SAW), were
employed for this purpose. The brewed samples were
prepared by boiling either the Blue Pea (Clitoria ternatea L.)
flowers alone or a mixture of Blue Pea flowers and
Peppermint, with varying amounts of added sugar. The
organoleptic scores of four formulations was assessed by a
panel of 30 untrained judges using a 9-point hedonic scale,
focusing on taste, aroma, and color criteria. Data analysis
began with ROC to determine the weights of each criterion,
followed by SAW to identify the optimal formulation. The
results indicated that the formulation consisting of 100 g of
Blue Pea flowers and 200 g of sugar achieved the highest
preference score of 0.9959.