The Effect Of Addition Of Black Cumin Oil (Nigellasativa) With Different Concentrations In The Yoghurt Production Process On Ph, Viscosity And Water Holding Capacity
Yogurt is a milk product made through the fermentation of Lactobacillus acidophilus, Lactobacillus bulgaricus, and Streptococcus thermophilus bacteria. Black cumin oil contains compounds that can inhibit allergic reactions in asthma, act as an anti-tumor agent, have antibacterial properties, and reduce inflammation. This research was conducted experimentally using a Completely Randomized Design (CRD) with 5 concentration treatments (P1= 1%, P2= 2%, P3= 3%, P4= 4%, and P5=5%), each repeated 4 times. Data on pH, viscosity, and water holding capacity were analyzed using analysis of variance (ANOVA) and Duncan's post hoc test.The addition of black cumin oil in the yogurt-making process with concentrations of 1%, 2%, 3%, 4%, and 5% significantly affected the pH and water holding capacity but did not significantly affect the viscosity of the yogurt. Higher concentrations of added black cumin oil during the yogurt-making process tend to cause a decrease in the pH, viscosity, and water holding capacity of the yogurt.