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Treatments: Control ( ● ) - pork patties with 120 ppm sodium nitrite; T1 (○) - pork patties with 2% PS; T2 ( ■ ) - pork patties with 2% PC; T3 ( □ ) - pork patties with 60 ppm sodium nitrite and 1% PS; NC ( ▲ ) - nitrite free.
