Activated complex theory is a classical theory suitable for food science with appropriate use
Liyou Zheng1, Jun Jin1, Emad Karrar1
1National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, 1800, Lihu Road, Wuxi 214122, Jiangsu, PR China.
Food Chemistry
|July 15, 2020
Summary
Activated complex theory (ACT) aids in linking reaction kinetics and thermodynamics, particularly in food processing. This study highlights key considerations for accurate ACT application, addressing common errors in recent literature.
Area of Science:
- Chemical kinetics
- Food science
- Thermodynamics
Background:
- Activated complex theory (ACT) is a tool for connecting reaction kinetics (rate constant, k) and thermodynamic parameters (standard enthalpy, entropy, and Gibbs free energy of activation).
- ACT is frequently applied in food systems, including oil and fruit juice processing.
- Recent literature (2014-2019) shows improper calculations and mistakes in ACT applications.
Purpose of the Study:
- To provide guidance on the correct application of ACT in food systems.
- To address and rectify common errors observed in recent ACT studies.
- To enhance the understanding and accurate utilization of ACT in scientific research.
Main Methods:
- Focus on the application of ACT in food systems, specifically oil and fruit juice processing.
- Analysis of common errors in published ACT studies from 2014-2019.
- Development of three key considerations for proper ACT implementation.
Main Results:
- Identified three critical considerations for applying ACT: reactions must be single elementary steps, units must be consistent, and proper temperature selection is crucial for parameter analysis.
- Highlighted the importance of these considerations to avoid miscalculations.
- Provided a framework for accurate kinetic and thermodynamic analysis using ACT.
Conclusions:
- Correct application of ACT requires understanding its theoretical underpinnings and practical considerations.
- Adherence to the presented guidelines will improve the reliability of ACT in food science and other fields.
- This work aims to foster more accurate and consistent use of ACT in future research.
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