High pressure CO2 pasteurization for pre-packed food products
A novel high-pressure CO2 pasteurization technology for pre-packed food reduces bacteria, yeasts, and molds at low temperatures, preserving nutritional and sensory qualities. Offers potential for safer, longer-lasting fruits, vegetables, meats, and nuts.
Overview
The high-pressure carbon dioxide (CO2) pasteurization technology offers an innovative method for treating pre-packed food products. Developed by the University of Padova, this technique uses a CO2-rich atmosphere combined with water-driven pasteurization to effectively reduce bacteria, yeasts, and molds at low temperatures (<45°C). This ensures minimal impact on the nutritional and sensory qualities of a wide range of products, including fruits, vegetables, meats, and nuts. By integrating natural antimicrobial additives, it further enhances product safety and extends shelf life.
Technical specifications
- Utilizes high-pressure CO2, especially under supercritical conditions (≥31°C, 73 bar), to target spoilage and pathogenic microorganisms.
- Suitable for a variety of food products due to low-temperature processing.
- Can incorporate natural antimicrobials like essential oils, terpenes, and organic acids.
- Focuses on maintaining nutritional value, sensory properties, and environmental sustainability.
- Designed to prevent post-process contamination, ensuring products are ready for storage and delivery.
Technology readiness level
This technology is at TRL 4, indicating that it has been validated in a laboratory setting. Future validation plans include optimizing packaging solutions, conducting shelf-life studies, and sensory analyses to confirm product acceptability.
About University of Padova
Founded in 1222, the University of Padova is a comprehensive public research university with broad disciplinary depth and a strong international profile. Industry engages through co-located labs and shared core facilities offering testing and contract services, plus internship and thesis pathways that place students in company settings. The university is integrated with a major hospital system for clinical research and translation and collaborates with regional technology parks and the Veneto network of industrial districts. Research is supported by competitive European and national programs, including Horizon Europe and the European Research Council. A dedicated technology transfer office streamlines sponsored research, IP, licensing, and startup support for corporate partners.
delivered to your inbox.