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Beef patties; Frozen storage; Shelf life
The purpose of this study was to identify the ideal storage period for frozen minced beef products and to under-stand key factors affecting their quality. Frozen minced beef products with 10 and 15% of fat content were kept at ?5, ?15, and ?23°C, and over a 6-month period, they were assessed for moisture content (MC), peroxide values (POV), acid values (AV), 2-thiobarbituric acid (TBA) value, total volatile basic nitrogen content (TVB-N), and the sensory test in order to identify the effect on quality. This helped to determine their appropriate storage duration at a given temperature. Multiple regression analysis was used to assess the correlations between storage tempera-ture, fat meat percentage, characteristic factors, and overall acceptance (OA). Five months for ?23°C, 4 months for ?15°C, and 2 months for ?5°C met 3.7 points or more of OA, in accordance with global sensory analysis stan-dards, and were determined as acceptable frozen storage durations. The very high multiple regression analysis R2 (0.97–0.99) verified the correlation between the characteristic factors and OA. In addition, TVB-N, MC, and POV, respectively, were the main quality factors affecting OA at ?5, ?15, and ?23°C (R2 > 0.8). These findings may prove useful and practical for manufacturers to improve storage and distribution practices in maintaining the quality of frozen minced beef products.
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