Introduction: This research was carried out with the aim of investigating the possibility of producing functional milk dessert containing aloe vera gel with acceptable physicochemical, rheological and sensory properties.
Materials and methods: Aloe vera gel was used at
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Introduction: This research was carried out with the aim of investigating the possibility of producing functional milk dessert containing aloe vera gel with acceptable physicochemical, rheological and sensory properties.
Materials and methods: Aloe vera gel was used at four levels of 0, 3%, 6% and 9% for the production of milk dessert, and its physicochemical properties (pH, syneresis and viscosity), rheological properties (dynamic oscillation test), the sensory and survival characteristics of Lactobacillus plantarum bacteria during 20 days of storage were investigated.
Results The results showed that the addition of aloe vera gel decreased the pH of milk dessert samples. The maximum stability of milk dessert samples was observed in sample T3 which contained 9% aloe vera gel. The results showed that in all samples, the viscosity increased significantly with increasing aloe vera gel concentration (p<0.05%). The addition of aloe vera gel significantly increased the survival rate of Lactobacillus plantarum in the treatment samples (p<0.05%). In the evaluation of the rheological properties of the milk dessert, it was found that the storage modulus (Gꞌ), viscous modulus (Gꞌꞌ) increased and the complex viscosity (ƞ*) decreased with the increase in aloe vera gel concentration. In the sensory evaluation, it was found that, the highest overall acceptance score belong to the T2 treatment.
Conclusion: According to the results, using 6% aloe vera gel in milk dessert reduces the syneresis, increases the viscosity, improves the survival of Lactobacillus plantarum bacteria, and in terms of the sensory properties, it will increase the acceptability among the consumers.
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