The Effect of Rosemary and Oregano Extract Addition on Selected Quality Properties of Pork Pâtés During Cold Storage

This study aimed to evaluate the effect of rosemary and oregano extracts on the chemical composition, physicochemical parameters, and sensory characteristics of pork pâtés under cold storage for 1, 7, and 14 days. Five different experimental variants were developed: "k"-control sample (no extract added), "rr"-with 50% rosemary extract added, "rs"-with 100% rosemary extract added, "oo"-with 50% oregano extract added, and "os"-with 100% oregano extract added. The study showed that rosemary and oregano extracts did not cause significant changes in the basic chemical composition and pH. However, they significantly affected the oxidative stability, color characteristics, texture, and sensory acceptance of the pâtés. TBARS (lipid oxidation rate) values systematically increased during storage, with the lowest lipid oxidation rate observed in samples with rosemary extract. The extracts also limited the increase in oxidation-reduction potential compared to the control sample. Changes in texture parameters were also observed, but the additives significantly reduced their unfavorable character, particularly in terms of hardness and chewiness. Sensory evaluation results confirmed the positive impact of the extracts, particularly in terms of odor and taste, which were rated significantly higher than in the control sample. The conducted studies indicate that rosemary and oregano extracts may be a natural source of compounds with antioxidant properties and stabilize the quality of pork pâtés. Their use may provide an effective and consumer-acceptable alternative to synthetic preservatives, supporting the development of meat products aligned with the "clean label" trend.