Electrostatic Fields During Near-Freezing Storage Affect Pork Glycolysis Rates

Researchers from the Chinese Academy of Agricultural Sciences and Ocean University of China have evaluated the impact of electrostatic fields on the preservation of pork muscle. The study examines how applying a 12-kilovolt field during near-freezing storage influences the biochemical processes that occur post-slaughter. By tracking metabolic shifts and protein structural changes, the research team identified how this technology may modulate the rate of glycolysis, potentially affecting the overall quality and moisture retention of fresh meat during storage and transport.

The application of electrostatic fields in food science addresses the challenge of maintaining meat quality during the postmortem period. When muscle tissue transitions through glycolysis, the conversion of glycogen into lactate typically reduces the pH level, which can negatively impact the texture, color, and water-holding capacity of the product. Traditional refrigeration methods rely on temperature reduction to slow these metabolic reactions, but the integration of an electrostatic field introduces a method to alter the protein environment and enzyme activity at the molecular level. By influencing the post-translational modifications of key enzymes, such as lactate dehydrogenase, the process effectively slows the metabolic cascade that leads to quality loss.

From an industry perspective, this research offers a potential pathway for enhancing shelf life without relying solely on traditional freezing, which can damage cellular structures. While the findings indicate measurable improvements in energy retention and reduced lactate accumulation over a 120-hour period, the technology remains in the experimental stage. Commercial adoption would require further investigation into equipment scalability, operational energy costs, and the consistency of these effects across various meat types. Furthermore, the industry must evaluate whether this method meets safety standards and maintains microbial stability during long-term distribution. The current study provides a foundation for future engineering efforts to refine cold-chain storage logistics through controlled electrical environments.