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In meat products, why the hydrocolloids formed gel become weakening and purge in acidic environments?

In meat products, why the hydrocolloids formed gel become weakening and purge in acidic environments?

Core Issue: Acid Stability. Most gums are stable between pH 4-7.

Highly Stable: Xanthan gum (stable from pH 1-13), Gellan gum.

Unstable
: Carrageenan undergoes hydrolytic degradation at pH < 4.0 under heat, losing gelling power. Konjac gum viscosity drops sharply when heated under strong acidic conditions.

Solution:
  1. Choose the Right Gum: For acidic products, prioritize xanthan gum and gellan gum.

  2. Process Adjustment: Acidify after stuffing/cooking and sterilization, avoiding prolonged heating of gums under acidic conditions.

  3. Use Buffering Salts: Such as sodium citrate, to stabilize the system pH within the gum's tolerance range.

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