Potassium carbonate improves fresh pork quality characteristics

Area of Science:

• Food Science
• Meat Science
• Food Chemistry

Background:

• Sodium tripolyphosphate (STP) is widely used to enhance fresh meat quality.
• Consumer acceptance of STP is declining, necessitating alternative solutions.
• Potassium carbonate (K2CO3) is explored as a potential substitute for STP.

Purpose of the Study:

• To evaluate the efficacy of potassium carbonate (K2CO3) as an alternative meat enhancement ingredient.
• To compare the effects of K2CO3 and STP on fresh pork loin quality attributes.

Main Methods:

• Fresh pork loins were treated with varying concentrations of K2CO3 (0.1%, 0.3%, 0.5%) or STP (0.3%).
• Pork chops were subjected to simulated retail display and analyzed for color (L*, a*, b*), pH, cook loss, and tenderness.
• SDS-PAGE was used to analyze protein extraction, specifically myosin heavy chain.

Main Results:

• K2CO3 at 0.3% and 0.5% concentrations effectively maintained redness (a*) and decreased yellowness (b*) in pork loin.
• Both K2CO3 and STP treatments reduced cooking loss and maintained tenderness compared to the control.
• SDS-PAGE confirmed that K2CO3, similar to STP, extracts myosin heavy chain.

Conclusions:

• Potassium carbonate (K2CO3) demonstrates potential as a viable alternative to sodium tripolyphosphate (STP) in the fresh pork industry.
• Further research is needed to ensure microbial safety and shelf-life when using K2CO3 for meat enhancement.