Effect of sucrose addition to antioxidant activity and colour in blue pea flower (Clitoria ternatea L.) yoghurt
2022
Nadia, L. S. | Suharman | Sutakwa, A.
Blue pea flower (Clitoria ternatea L.) yoghurt is the result of processing milk with the addition of blue pea flower extract through Lactic acid bacteria's fermentation process viz. Lactobacillus bulgaricus and Streptococcus thermophilus. Blue pea flower (Clitoria ternatea L.) contains bioactive components, particularly flavonol glycosides, anthocyanins, flavones, flavonols, phenolic acids and terpenoid. This study was aimed to determine the effect of sucrose on the antioxidant activity and colour of blue pea flower yoghurt. This study used a completely randomized design with five treatments namely yogurt control = no added blue pea flower extract, and the following with 10% blue pea flower extract at different sucrose concentrations: P1 = 0% sucrose, P2 = 4% sucrose, P3 = 8% sucrose and P4 = 12% sucrose. Data analysis used the analysis of variance. The results showed that the highest antioxidant activity was P2 = 105.25 ppm. While the best colour parameter is P2 = L * 42.42, a * 5.12, b * -5.54). Based on the results of the study, the addition of sucrose 4% increased the highest antioxidant activity and colour of yoghurt extract of blue pea flowers (Clitoria ternatea L).
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