Preguntas frecuentes

If the meat product has a gel that is too brittle, crumbly, and slices poorly/frays easily, what is the cause?

Possible Causes:

1. Excessively strong, brittle gel network: The dosage of κ-carrageenan is too high, or the concentration of potassium ions (K⁺, mainly from KCl) in the system is excessive. This leads to a gel network that is too dense, hard, and lacks toughness, resulting in brittle fracture.

2. Insufficient protein network support: Insufficient dosage or incomplete dissolution of phosphates (e.g., STPP) leads to inadequate extraction of myofibrillar proteins. The resulting protein gel network is weak and fails to synergize effectively with the hydrocolloid network, leading to an overall fragile structure.

3. Lack of toughening components: The formulation lacks hydrocolloids that can increase gel toughness and cohesion, such as konjac gum or locust bean gum. The gel formed by carrageenan alone tends to be brittle.

Solutions and Prevention:

• Adjust hydrocolloid and ion levels: Appropriately reduce the dosage of κ-carrageenan (e.g., by 0.1%-0.2%). If KCl is used, try reducing its dosage (e.g., from 0.3% to 0.2%).

• Strengthen the protein network: Ensure sufficient dosage (recommended 0.3%-0.5%) and complete dissolution of phosphate blends (e.g., STPP). Optimize tumbling/massaging to fully extract salt-soluble proteins.

• Utilize scientific blending: In a carrageenan-based system, incorporate synergistic hydrocolloids like konjac gum (0.1%-0.3%) or locust bean gum (0.05%-0.15%). These significantly enhance the gel's elasticity, toughness, and cohesiveness, resulting in smoother slices that hold together better.