Texture Profile Analyzer

Theory and Method (Texture Profile Parameters)

The texture profile analyzer operates by applying controlled mechanical deformation to a sample using a probe, while continuously measuring force and displacement. The resulting force–time or force–distance curves are mathematically analyzed to extract texture parameters that correlate closely with human sensory perception.

Key Texture Profile Analysis (TPA) parameters include:

• Hardness – Peak force during the first compression, representing resistance to deformation.
• Fracturability – Force at which the sample structure breaks during compression.
• Adhesiveness – Negative force area during probe withdrawal, reflecting surface stickiness.
• Springiness – Ability of a sample to recover its original shape between compressions.
• Cohesiveness – Degree to which a sample holds together under repeated deformation.
• Gumminess – Energy required to disintegrate semi-solid foods, calculated from hardness and cohesiveness.
• Chewiness – Energy required to chew solid foods, derived from hardness, cohesiveness, and springiness.
  • Chewiness= Hardness × Cohesiveness × Springiness
• Resilience – Speed and extent of recovery after deformation during the first compression cycle.

The QualiTEXA™-Pro supports full two-bite TPA testing, closely simulating human mastication behavior to provide reliable, reproducible texture data.