Probiotic Ice Cream: Fusion of Flavor and Health

Abstract Objectives: This study aimed to formulate and evaluate a functional probiotic ice cream using Lactobacillus spp. with high viability and nutritional integrity. The objective was to develop a palatable probiotic delivery system that maintains microbial stability and functional properties during refrigerated storage. Methods: A factorial design approach was employed to optimize the proportions of natural cream, milk, and honey to achieve desirable texture, flavor, and probiotic survivability. The selected Lactobacillus strain was isolated from curd and characterized using Gram staining and biochemical tests. The optimized formulation was assessed for pH, reducing sugars, protein, fat, and viable CFU count over a 20-day storage period at 4 ± 1°C. Results: The optimized batch maintained pH between 5.0–6.7 (Table 1), reducing sugar content ranging from 0.78–1.22 (Table 2), and protein levels between 0.20–0.54 (Table 3). Fat content averaged 10.8% (Table 4), and viable counts remained within 10⁷–10⁸ CFU/g (Figure/Table 5), meeting international probiotic standards. The formulation retained its physicochemical and nutritional properties, indicating successful optimization through factorial design. Conclusion: The study demonstrates that probiotic ice cream can serve as an effective and consumer-friendly vehicle for probiotic delivery. The formulation shows potential clinical relevance for improving gut health and supporting gastrointestinal wellness. Future in vivo studies are recommended to confirm colonization and functional efficacy, paving the way for clinical translation and commercialization.