Novel food processing, sustainable ingredients, and modern food engineering.
Thermal preservation historically subjected products to prolonged in-container retort batch sterilization (115-121°C for 20-40 minutes), incurring heavy sensory and nutritional degradation. Aseptic processing and packaging circumvents this quality penalty by decoupling product sterilization from packaging decontamination: fluid food undergoes rapid…
In food process engineering, acoustic energy delivered at low frequencies (20-100 kHz) and elevated power densities (> 10 W/cm²) is classified as Power Ultrasound. Distinct from diagnostic high-frequency ultrasound, power ultrasound induces violent acoustic cavitation across liquid media, producing unique…
Food extrusion technology has evolved beyond dry ready-to-eat cereals and snack expansion to serve as the core bioprocess engineering engine of the plant-based protein transition. To replicate the anisotropic myofibrillar texture of muscle meat, High-Moisture Extrusion Cooking (HMEC) subjects globular…
Extending the shelf life and ensuring the safety of liquid foods has historically required continuous thermal pasteurization (72-90°C). However, excessive thermal loads trigger irreversible ascorbic acid degradation, volatile aroma loss, and Maillard-derived cooked notes. Pulsed Electric Field (PEF) processing addresses…
Liquid concentration and purification across food manufacturing have historically relied upon multi-stage vacuum evaporation. However, high latent heat of vaporization requirements and thermal degradation risks have accelerated the transition toward pressure-driven membrane separation systems. By segmenting process streams based on…
Conventional liquid solvent extractions (hexane, acetone, ethanol) increasingly face regulatory stringency due to volatile organic compound emissions, substantial evaporative energy penalties, and downstream chemical residues. Supercritical Fluid Extraction (SFE) circumvents these thermodynamic bottlenecks by exploiting carbon dioxide (scCO₂) held above…
In food process engineering, dehydration reduces water activity (a_w) below critical thresholds (a_w < 0.60) where microbial proliferation ceases and enzymatic degradation decelerates. Traditional hot-air convective drying drives liquid water vaporization, generating liquid capillary surface tension forces that induce catastrophic…
Primary mechanisms governing food deterioration involve aerobic bacterial proliferation, polyunsaturated lipid auto-oxidation, and post-harvest respiration kinetics in fresh horticultural tissues. Modified Atmosphere Packaging (MAP) constitutes an advanced bio-packaging discipline wherein normal atmospheric headspaces (sim 78% N_2, 21% O₂, 0.04% CO₂)…
Consumer market demands for clean-label formulation, absence of chemical preservatives, and uncompromised nutrient retention have accelerated the commercial maturation of non-thermal preservation technologies. Among these, High Hydrostatic Pressure (HPP, historically designated Pascalization) represents the premier industrial success. By subjecting pre-packaged…
Engineering the protein transition: Precision fermentation, microalgae cultivation, and high-moisture extrusion technology for a resilient food supply.