Ohmic Heating in Food Processing  book cover
1st Edition

Ohmic Heating in Food Processing

ISBN 9781138198968
Published December 1, 2016 by CRC Press
530 Pages 156 B/W Illustrations

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Book Description

Ohmic heating provides rapid and uniform heating, resulting in less thermal damage than conventional heating and allowing manufacturers to obtain high-quality products with minimum sensorial, nutritional, and structural changes. Ohmic Heating in Food Processing covers several aspects of Ohmic heating: science and engineering, chemistry and physics, biochemistry and nutrition, quality and safety, and development and technology, both basic and applied. It describes the importance of Ohmic technology and how to implement it in practice, addressing basic theory, principles, and applications.

Divided into nine sections, this volume covers the basics of Ohmic heating, including a historic overview and fundamental principles; electrical conductivity, its importance, factors that influence it, and data modeling; biological effects of electricity on foods and food components, including microorganisms, enzymes, proteins, carbohydrates, and fats; and Ohmic heating behavior and design parameters. The book also deals with issues in Ohmic heating equipment, Ohmic heating modeling issues, and process validation issues.

The authors discuss various applications of Ohmic heating applied to different classes of foods, such as muscle foods (meat, poultry, and fish), dairy products, fruits, and vegetables. They also examine commercially successful applications of food products processed by Ohmic heating and considers applications of Ohmic heating where preservation is not the main focus, for example, blanching, Ohmic thawing, and the potential for Ohmic heating for long-duration space missions.

Table of Contents

Section 1 Basics of Ohmic Heating

Overview of Ohmic Heating
Sudhir K. Sastry

Why Ohmic Heating? Advantages, Applications, Technology, and Limitations
Sudhir K. Sastry, Brian F. Heskitt, Sanjay S. Sarang, Romel Somavat, and Ken Ayotte

Section 2 Electrical Conductivity

Electrical Conductivity: Importance and Methods of Measurement
Mohammad Reza Zareifard, Michele Marcotte, Hosahalli S. Ramaswamy, and Yousef Karimi-Zindashty

The Electrical Conductivity of Foods
Mohammad Reza Zareifard, Hosahalli S. Ramaswamy, Michele Marcotte, and Yousef Karimi-Zindashty

Factors Influencing Electrical Conductivity
Mohammad Reza Zareifard, Hosahalli S. Ramaswamy, Michele Marcotte, and Yousef Karimi-Zindashty

Modeling of Electrical Conductivity in the Context of Ohmic Heating
Mohammad Reza Zareifard, Michele Marcotte, Hosahalli S. Ramaswamy, and Yousef Karimi-Zindashty

Section 3 Biological Effects of Electricity on Foods

Electricity Effects on Microorganisms and Enzymes
António Augusto Vicente, Ricardo Nuno Pereira, Thereza Christina V. Penna, and Marcos Knirsch

Effect of Ohmic Heating on Fish Proteins and Other Biopolymers
Jae W. Park and Zachary H. Reed

Electrochemical Reactions during Ohmic Heating and Moderate Electric Field Processing
Chaminda P. Samaranayake and Sudhir K. Sastry

Section 4 Ohmic Heating Behavior and Design Parameters

Ohmic Heating Behavior of Foods
Ricardo Simpson, Erica Carevic, Romina Grancelli, and Jorge Moreno

Electrodes in Ohmic Heating
Yetenayet Bekele Tola, Navneet Singh Rattan, and Hosahalli S. Ramaswamy

Energy Efficiency and Control of the Ohmic Heating Process
Luc Fillaudeau and Sami Gnhimi

Section 5 Equipment for Ohmic Heating

Ohmic Heating Laboratory Units
Sanjay S. Sarang, Brian F. Heskitt, and Sudhir K. Sastry

Tubular and Fluid Jet Units
Sami Ghnimi, Guillaume Delaplace, and Luc Fillaudeau

Section 6 Modeling of Ohmic Heating

Modeling Basics as Applied to Ohmic Heating of Liquid and Wall Cooling
Jean-Pierre Pain and Frans L. Muller

Modeling: Static vs. Continuous Systems
Filiz Içier

Sensitivity Analysis of the Ohmic Heating Process
Cuiren Chen, Khalid Abdelrahim, Hosahalli S. Ramaswamy, and Michele Marcotte

Section 7 Ohmic Heating as Applied to Specific Foods

Ohmic Heating of Muscle Foods (Meat, Poultry, and Fish Products)
James G. Lyng

Applications of Ohmic Heating to Milk and Dairy Products
Ajaypal Singh, Navneet Singh Rattan, Phani Tej Raghav Narayanapurapu, and Hosahalli S. Ramaswamy

Fruits and Vegetables
Gary Tucker

Commercially Successful Applications
Gary Tucker

Section 8 Other Applications and Future Uses of Ohmic Heating

Ohmic Blanching
Filiz Içier and Hayriye Bozkurt

Ohmic Heating as Thawing and Tempering Technology
Nadide Seyhun, Servet Gulum Sumnu, and Hosahalli S. Ramaswamy

Ohmic Heating as an Aseptic Sterilization Process for Particulate Foods
Luc Fillaudeau and Legrand Alexandra

Ohmic Heating for Space Applications
Sudhir K. Sastry

Ohmic Cooking of Food
Mohammad M. Farid, Wei Jian Kong, and Necati Ozkan

Marta Orlowska, Alain LeBail, and Michel Havet

Section 9 Process Validation

Validation of Ohmic Processing Systems
Dilip I. Chandarana

Biovalidation of Ohmic Processing Systems
Khalid Abdelrahim, Suzanne Tortorelli, and Cuiren Chen

Regulatory Issues
Gregory J. Fleischman


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Dr. Hosahalli S. Ramaswamy is a professor of food processing at McGill University, Ste-Anne-de-Bellevue, Quebec, Canada. He has established a very strong research program in several areas of postharvest technology and food processing. Dr. Ramaswamy is active in food process engineering research and has published more than 300 papers in refereed scientific journals, presented over 400 papers at conferences, and has been an invited keynote speaker at several international conferences. Dr. Ramaswamy has been conferred several prestigious awards including WJ Eva and President’s Awards (CIFST), John Clark Award (CSBE), Merit Pin (IFTPS), and Fellowships of CIFST and CSBE.

Dr. Michèle Marcotte is currently the director of Research and Development at the Eastern Cereal and Oilseed Research Centre (ECORC) located at Agriculture and Agri-Food Canada in Ottawa. She authored and coauthored more than 60 peer-reviewed papers, 120 conference papers, and 45 research reports. Dr. Marcotte developed a unique two-step drying process for cranberries that was implemented commercially in Quebec. She has received nine significant awards/prizes.

Dr. Sudhir K. Sastry is a professor in the Department of Food, Agricultural, and Biological Engineering at The Ohio State University. His research interests include Ohmic heating, aseptic, high pressure and pulsed electric field (PEF) processing, the influence of moderate electric fields on biological materials, and the safety of fresh produce. He has published over 170 papers, six patents, and a book titled Aseptic Processing of Particulate Foods. He also recently completed a project for NASA, where he and his colleagues developed new, reusable food packaging for NASA’s lunar and Mars missions.

Khalid Abdelrahim, Ph.D., is currently the thermal processing manager and process authority for Nestle USA and Nestle Canada, Glendale, California. He is responsible for the thermal process support of the Coffee Mate, NesQuik, Carnation Evaporated Milk, Libbey’s Pumpkin, and so on. He was with Campbell Soup Company during the period 2002–2011, where he was recognized with the Campbell’s CEO Award, and he developed and filed the first Ohmic heating process for Campbell Soup with the Food and Drug Administration.