Impact of Combined Ultrasound and Citric Acid Treatments on the Quality and Safety of Natural Horse Casings Over Storage Durations
Kostanova A. Baytukenova S. Baytukenova S. Ryspaeva U. Yussupova G. Shadyarova Z. Bekakhmetov A.
2025Polish Academy Sciences. Institute of Animal Reproduction and Food Research
Polish Journal of Food and Nutrition Sciences
2025#75Issue 137 - 48 pp.
This study investigated the combined effects of ultrasound (US) and citric acid (CA) treatments on the microbiological safety and mechanical integrity of natural horse casings during storage. Derived from horse intestines, these casings are susceptible to microbial contamination that can impact food safety and quality. Samples underwent treatment with ultrasound (35 kHz, 200 W for 5 or 10 min), citric acid at a concentration of 0.5% and 1%, and their combination. Results showed that the treatment combination of 1% CA with US for 5 min yielded the lowest initial total plate count (TPC) at 1.63 log cfu/g and maintained effective microbial control, with TPC at 3.24 log cfu/g by day 13 of storage at 4°C. This combination also preserved the mechanical properties of the casings, achieving tensile strength of 5.7 MPa and elongation at break at 58%. The findings suggest that combining US and CA significantly enhances the microbial safety and mechanical resilience of horse casings, offering a promising approach for the meat processing industry.
horse intestine , mechanical properties , microbiological properties , natural casings
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Department of Food Technology and Processing Products, S. Seifullin Kazakh Agrotechnical Research University, Zhenis avenue, 62, Astana, Z11F9K, Kazakhstan
Department of Technology and Standardization, K. Kulazhanov Kazakh University of Technology and Business, Kaiym Mukhamedkhanova, 37 А, Astana, 010011, Kazakhstan
Department of Standardization, Metrology and Certification, S. Seifullin Kazakh Agrotechnical Research University, Zhenis avenue, 62, Astana, Z11F9K, Kazakhstan
Department of Food Technology and Processing Products
Department of Technology and Standardization
Department of Standardization
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