Fresh pork sausagewas manufactured to determine the effects of animal diet (unsaturated or control) and inclusion
of corn oil during processing (0% and 14% fat replacement). Bologna was manufactured to investigate only
diet effects. Processing, textural, sensory, visual, and storage characteristics were evaluated. Processing yield
was improved 2.9 percentage units in fresh sausage but reduced 1.8 units in bologna in unsaturated compared
with control diets. Break strength of fresh sausage was reduced 0.6 kg by oil inclusion. Both unsaturated fat
and including oil during processing resulted in softer texture of fresh sausage, while increased unsaturation in
bologna resulted in firmer or unchanged textural properties. Fresh sausage with oil was lighter colored (5.3 L*
units increased) with more fat smearing. In fresh sausage, lipid oxidation remained below 1 mg/kgMDA during
12 weeks frozen storage. Overall, changes in fat quality minimally affected sausage quality, likely providing
acceptable products to consumers.
Fresh pork sausagewas manufactured to determine the effects of animal diet (unsaturated or control) and inclusion
of corn oil during processing (0% and 14% fat replacement). Bologna was manufactured to investigate only
diet effects. Processing, textural, sensory, visual, and storage characteristics were evaluated. Processing yield
was improved 2.9 percentage units in fresh sausage but reduced 1.8 units in bologna in unsaturated compared
with control diets. Break strength of fresh sausage was reduced 0.6 kg by oil inclusion. Both unsaturated fat
and including oil during processing resulted in softer texture of fresh sausage, while increased unsaturation in
bologna resulted in firmer or unchanged textural properties. Fresh sausage with oil was lighter colored (5.3 L*
units increased) with more fat smearing. In fresh sausage, lipid oxidation remained below 1 mg/kgMDA during
12 weeks frozen storage. Overall, changes in fat quality minimally affected sausage quality, likely providing
acceptable products to consumers.
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