Effect of cold Effect of cold pasteurization on the pasteurization on the color and flavor of color and flavor of frozen packaged ground frozen packaged ground beef patties beef patties D. D. Johnson D. D. Johnson University of Florida University of Florida
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Effect of cold pasteurization on the color and flavor of frozen packaged ground beef patties D. D. Johnson University of Florida.
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Effect of cold pasteurization Effect of cold pasteurization on the color and flavor of on the color and flavor of
Does increasing dosage level of Does increasing dosage level of irradiation affect visual and sensory irradiation affect visual and sensory properties of ground beef patties?properties of ground beef patties?
Does chill state at cooking affect Does chill state at cooking affect visual and sensory properties?visual and sensory properties?
laminate Cryovac Seal Air Corp.)laminate Cryovac Seal Air Corp.) Irradiated with electron beam 0, .5, Irradiated with electron beam 0, .5,
1, 2, 3 or 4 kGy (Florida Accelerator 1, 2, 3 or 4 kGy (Florida Accelerator Services and Technology)Services and Technology)
ProcessProcess
Kept Frozen at -Kept Frozen at -4040°°CC ThawedThawed
ColorColor Grilled to 71Grilled to 71°°C C
FrozenFrozen ColorColor Grilled to 71Grilled to 71°°CC
Effect of Irradiation Level and Chill State on Effect of Irradiation Level and Chill State on Color and Discoloration of Ground Beef Color and Discoloration of Ground Beef
Color scale: 8 = light cherry red; 1 = extremely dark red or brownColor scale: 8 = light cherry red; 1 = extremely dark red or brown
Discoloration: 8 = no discoloration; 1 = 100% discolored.Discoloration: 8 = no discoloration; 1 = 100% discolored.
a-ea-e Means in a column lacking a common superscript differ (P < .05) Means in a column lacking a common superscript differ (P < .05)
Measuring Color: CIE Color SpaceMeasuring Color: CIE Color Space
Effect of Irradiation Level and Chill State on Effect of Irradiation Level and Chill State on Hunter Color Measurements in Ground Beef Hunter Color Measurements in Ground Beef
PattiesPattiesHunter ValuesHunter Values
11.911.9bb19.419.4bb46.546.5ThawedThawed
12.212.2aa18.418.4aa47.747.7FrozenFrozen
Chilled StateChilled State
10.610.6ff15.315.3ff46.246.24.04.0
11.211.2ee16.116.1ee47.347.33.03.0
11.611.6dd17.617.6dd46.346.32.02.0
12.412.4cc19.819.8cc48.248.21.01.0
12.712.7bb20.920.9bb46.846.80.50.5
13.613.6aa23.823.8aa47.847.800
b*b* a*a* L*L*Irradiation, kGyIrradiation, kGy
a-fa-f Means in a column lacking a common superscript differ (P < .05) Means in a column lacking a common superscript differ (P < .05)
Effect of Irradiation Level and Chill State on Effect of Irradiation Level and Chill State on Sensory Properties of Ground Beef PattiesSensory Properties of Ground Beef Patties
a,ba,b Means in a column lacking a common superscript differ (P < .05) Means in a column lacking a common superscript differ (P < .05)
SummarySummary
1.1. As irradiation level increased, color As irradiation level increased, color became darker and more reddish brown.became darker and more reddish brown.
2.2. As irradiation level increased, As irradiation level increased, discoloration increased.discoloration increased.
3.3. Off-odors were not affected by irradiation Off-odors were not affected by irradiation level, but patties thawed before cooking level, but patties thawed before cooking had slightly less off-odor.had slightly less off-odor.
4.4. Irradiated patties had less off-flavor than Irradiated patties had less off-flavor than non-irradiated patties.non-irradiated patties.
ConclusionConclusion
End users may perceive quality End users may perceive quality changes (color, discoloration) in changes (color, discoloration) in ground beef patties irradiated at high ground beef patties irradiated at high levels. However, we did not detect levels. However, we did not detect sensory changes at the levels sensory changes at the levels evaluated.evaluated.