Effect of replacing beef fat with safflower oil on physicochemical, nutritional and oxidative stability characteristics of wieners

Abstract

Five treatments of wieners were prepared with replacing 0, 25, 50, 75 and 100% of added beef back fat with safflower oil (SO). Changes in pH, thiobarbuturic acid reactive substances (TBARS) and color (L*, a*, b*) values of wieners were determined during manufacturing day and refrigerated storage (5, 10, 15, 20 and 30 d). Fatty acid profile, cholesterol content, cooking loss, proximate composition and textural properties of wieners were also determined on manufacturing day. Results revealed that SO incorporation in wiener formulation resulted in a higher unsaturated fatty acid contents (P < 0.05). Wieners manufactured with a 50% or higher fat replacement with SO resulted in lower cholesterol content compared to other treatments (P < 0.05). Increasing the amount of SO used for beef back fat replacement in wieners created higher TBARS formation during the storage period (P < 0.05). Incorporation of SO increased CIE L* and b* values, whereas it caused a decrease in CIE a* values of wieners (P < 0.05). On the other hand, replacing beef back fat with SO did not affect sensory attributes of wieners. Study results indicated that replacement rate of beef back fat with SO up to 50% can be good strategy for the meat industry to produce desirable and healthy weiners.