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Evaluating the Guo-Campanella viscoelastic model.

Pedro E D Augusto1, Alberto C Miano1, Meliza Lindsay Rojas1

  • 1Department of Agri-food Industry, Food and Nutrition (LAN), Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo (USP), Piracicaba, SP, Brazil.

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Summary
This summary is machine-generated.

A new Guo-Campanella Model effectively describes biological material stress-relaxation behavior. This validated model simplifies analysis, offering practical applications for food properties and process design.

Keywords:
rheologystress-relaxationtextureviscoelasticity

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Area of Science:

  • Rheology
  • Materials Science
  • Food Science

Background:

  • Biological materials exhibit complex structures and compositions, leading to viscoelastic behavior.
  • Accurate viscoelastic characterization is crucial for evaluating, designing, and optimizing processes for high-quality products.
  • Modeling methodologies are critical for studying the rheological properties of biological materials.

Purpose of the Study:

  • To independently evaluate the newly proposed Guo-Campanella Model for describing biological material stress-relaxation.
  • To compare the Guo-Campanella Model's performance against the Generalized Maxwell Model and the Peleg Model.
  • To interpret the parameters of the Guo-Campanella Model for practical applications.

Main Methods:

  • Evaluation of the Guo-Campanella Model using 10 diverse biological samples (in natura and processed foods, plant and animal bases).
  • Comparative analysis with the Generalized Maxwell Model and the Peleg Model.
  • Assessment of Guo-Campanella Model parameters for interpretation and usability.

Main Results:

  • The Guo-Campanella Model demonstrated a good fit for stress-relaxation data across various biological materials.
  • The model's validity was confirmed for materials with different structures, sources, and processing methods.
  • Parameters of the Guo-Campanella Model were evaluated, and their interpretations and uses were described.

Conclusions:

  • The Guo-Campanella Model is a valid and effective tool for describing the viscoelastic behavior of biological materials.
  • Its simplicity (two parameters) facilitates interpretation, making it suitable for practical applications in food science and process design.
  • The Guo-Campanella Model shows significant potential for future studies on biological material properties.