High Pressure Treatment in Foods

Area of Science:

• Food Science and Technology
• Microbiology
• Food Engineering

Background:

• High hydrostatic pressure (HHP) is a non-thermal food processing technology utilizing water as a pressure medium.
• HHP minimally impacts food's sensory, nutritional, and functional characteristics.
• The technology effectively inactivates bacterial cells and enzymes, crucial for food safety.

Purpose of the Study:

• To highlight the advantages of HHP as a food preservation technology.
• To underscore consumer acceptance of HHP-processed foods.
• To emphasize the reduction in synthetic additive use.

Main Methods:

• Application of high hydrostatic pressure (typically 100-600 MPa) in a water-based system.
• Evaluation of microbial inactivation (bacteria, yeasts, molds).
• Assessment of enzymatic activity reduction.
• Analysis of sensory, nutritional, and functional food properties.

Main Results:

• HHP effectively inactivates a broad spectrum of microorganisms and enzymes.
• Minimal detrimental effects on food's organoleptic properties, nutritional value, and functionality.
• Processed foods are perceived as fresh-like, leading to high consumer acceptance.
• Reduced reliance on synthetic preservatives and additives.

Conclusions:

• HHP is an attractive food preservation technology offering safety and quality.
• Consumer preference for fresh-like products drives acceptance of HHP.
• HHP contributes to cleaner labels by reducing the need for artificial additives.