Related Experiment Video
Updated: May 5, 2026

Chick ex ovo Culture and ex ovo CAM Assay: How it Really Works
Published on: November 30, 2009
Changes in physico-chemical and functional properties of liquid egg white by ohmic heating process
M Balakrishnan1, A Lilly Prasanna2, A Ramalakshmi2
1Department of Food Process Engineering, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India. bala_tnau@tnau.ac.in.
Ohmic heating effectively pasteurizes liquid egg white, optimizing parameters like voltage and frequency. This method preserves key quality attributes such as soluble protein and foaming capacity, offering a viable alternative to traditional pasteurization.
Area of Science:
- Food Science and Technology
- Process Engineering
- Biophysics
Background:
- Traditional liquid egg white pasteurization methods can impact functional properties.
- Ohmic heating offers a potential alternative for rapid and uniform heating.
Purpose of the Study:
- To develop and optimize an ohmic heating system for liquid egg white pasteurization.
- To evaluate the effects of ohmic heating on key quality parameters of liquid egg white.
Main Methods:
- A batch reactor system was used for ohmic heating of liquid egg white.
- Process variables (voltage, frequency, time, waveform) were systematically varied and optimized using Box-Behnken design.
- Key parameters including heating rate, turbidity, soluble protein, foaming capacity, and foaming stability were analyzed.
Main Results:
- Optimized parameters (17.93 V/cm, 10 Hz, 1.6 min, sine waveform) yielded a heating rate of 19.6 °C/min.
- The process achieved excellent results: 0.01 turbidity, 98.35% soluble protein, 405.68% foaming capacity, and 31.84% foaming stability.
- Viscosity decreased with increasing shear rate in ohmically treated egg white.
Conclusions:
- Ohmic heating is a promising technology for pasteurizing liquid egg white while maintaining its functional properties.
- The developed model can predict outcomes within the tested process variable ranges.
- Optimized ohmic heating parameters ensure high quality and desirable functional attributes in treated liquid egg white.
More Related Videos
06:12Mechanical Separation and Protein Solubilization of the Outer and Inner Perivitelline Sublayers from Hen's Eggs
Published on: January 27, 2021
09:53The Preparation of Chicken Ex Ovo Embryos and Chorioallantoic Membrane Vessels as In Vivo Model for Contrast-Enhanced Ultrasound Imaging and Microbubble-Mediated Drug Delivery Studies
Published on: February 9, 2021
Related Concept Videos
Phase Transitions: Melting and Freezing
Heating and Cooling Curves
For instance, the addition of heat raises the temperature of a solid; the amount of heat absorbed depends on the heat capacity of the solid (q = mcsolidΔT). According to thermochemistry, the relation between the amount of heat absorbed or released by a substance, q, and its...
Temperature and Thermal Equilibrium
The concept of temperature has evolved from the common concepts of hot and cold. The scientific definition of temperature explains more than just our sense of hot and cold. Temperature is operationally defined as the quantity measured with a thermometer. Furthermore, temperature is...
Physical Methods for Controlling Microbial Growth: Temperature