Dextrose Level and Oven Temperature Effects on Warmed‐over Flavor Development in Beef Top Round Roasts1,2

To determine the effect of added dextrose and cooking temperature on the development of warmed‐over flavor (WOF) and thiobarbituric acid reactive substances (TBARS), beef top round roasts were injected with a basic brine solution containing salt and sodium tripolyphosphate along with 0, 1 or 2% dextrose. The roasts were cooked in an oven temperature of 121C or 191C and stored for 4 weeks. Roasts cooked at the faster rate, without the addition of dextrose, showed TBARS values to be higher (P < 0.05) than those cooked at a slower rate. However, the addition of dextrose to roasts cooked at the faster rate reduced (P < 0.05) TBARS values. When 2% dextrose was added to roasts cooked at the slower rate, an increase (P < 0.05) in TBARS was observed. The addition of dextrose to beef top round roasts can reduce TBARS values when the roasts are cooked at relatively high temperatures, but may cause an increase in TBARS values when cooked at slower rates of heating.