Evaluation of the Quality Characteristics of Probiotic Ice Cream Produced from a Mixture of Camel Milk and Cow Milk during Frozen Storage
Publish place: Journal of Nutrition and Food Security، Vol: 7، Issue: 2
Publish Year: 1401
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JNFS-7-2_009
تاریخ نمایه سازی: 18 اردیبهشت 1401
Abstract:
Background: Ice cream is one of the most important and popular frozen desserts based on cow milk that is popular in the world. Due to the valuable properties of camel milk and with the aim of diversifying the production of this product and improving its nutritional quality, Methods: In the present study, ratios of ۰%, ۲۰%, ۳۰%, ۴۰%, ۵۰%, ۶۰%, ۷۰%, and ۸۰% of camel milk were replaced. The probiotic ice cream formulation contained Lactobacillus acidophilus and the samples were stored in a freezer at -۱۸ °C and on the days after (first) production, thirty and sixty days were subjected to physicochemical, microbial, and sensory tests. Results: The results showed that the trend of changes in pH, specific gravity and volume increase was irregular. In contrast, the trends of fat changes, melting resistance, and sensory properties were decreasing. In physicochemical tests, treatment based on ۴۰% cow milk had the highest pH value and volume increased, while the highest viscosity and melting resistance were related to camel milk treatment. The highest fat content and specific gravity belonged to ۸۰% camel milk treatment. Treatment based on ۴۰% cow milk showed the highest L. acidophilus count, while the treatment based on ۶۰% cow milk had the lowest count. In terms of sensory properties, this treatment received the highest flavor and overall acceptance scores in terms of evaluators, while the highest color and texture score belonged to the treatment based on ۴۰% and ۷۰% camel milk, respectively. Conclusion: The overall results showed that cow milk can be replaced by probiotic ice cream formulation with different proportions of camel milk and obtained a desirable product. Finally, treatments based on higher ratios of camel milk had better quality properties and ۶۰% of camel milk was selected as optimum treatment.
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Authors
Mehran Mazreati
Department of Food Science and Engineering, Mahalat branch, Islamic Azad University, Mahallat, Iran.
Leila Nateghi
Department of Food Science and Technology, Faculty of Agriculture, Varamin-Pishva Branch, Islamic Azad University, Varamin, Iran.
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