The Impact of Date Syrup on the Physicochemical, Microbiological, and Sensory Properties, and Antioxidant Activity of Bio-Fermented Camel Milk

Faculty Agriculture Year: 2022
Type of Publication: ZU Hosted Pages:
Authors:
Journal: Fermentation MDPI, Basel, Switzerland Volume:
Keywords : , Impact , Date Syrup , , Physicochemical, Microbiological, , Sensory Properties,    
Abstract:
Fermented camel milk is rich in nutrients and vitamins necessary for the health of humans and has therapeutic properties. Date palm camel milk has been reported to be beneficial for preventing and treating various diseases in Arab countries. This study targeted the production of probiotic fermented camel milk fortified with date syrup. In addition, the effect of adding date syrup as a prebiotic and flavoring agent to probiotic fermented camel milk on the physicochemical, phytochemical, microbiological, and sensory properties of probiotic fermented camel milk during storage was investigated. Probiotic fermented camel milk without adding date syrup served as a control, and the other two treatments were supplemented with date syrup at ratios of 6.0% and 8.0%. Probiotic fermented camel milk was analyzed after 1 day and 15 days from storage at 5  1 C. Interestingly, the present study revealed that the addition of date syrup significantly (p  0.05) increased total solids (TS), ash, Na, K, Fe, acetaldehyde, total phenolic contents, and titratable acidity, viscosity, and antioxidant values of resultant synbiotic fermented camel milk, and this increase was proportional to the level of date syrup fortification. In addition, non-significant changes in these components were observed during the storage period. However, total protein and fat content did not show significant changes. Furthermore, the addition of date syrup significantly increased (p  0.05) the total bacterial and Bifidobacteria counts, and this increase was associated with the level of the addition of date syrup. The addition of date syrup also significantly (p  0.05) improved the sensory scores for flavor, consistency, appearance, and total scores of resultant products. Moreover, the addition of date syrup at a level of 8% showed the highest sensory scores. In conclusion, probiotic fermented camel milk could be produced using a probiotic strain and flavored with date syrup at a level of 8%.
   
     
 
       

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