Volumetric Heating Food Solution Processing
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Solution Overview
Problem
Current food processing methods often overcook or degrade nutrients, leading to inefficient heating processes that require significant space and result in unappealing products, prompting a need for more effective and efficient methods to preserve food quality and nutrients.
Innovation Solution
A method involving continuous processing of food products by suspending them in a solution with a thickener, using electromagnetic or Ohmic heating to rapidly heat the food solution, which is then packaged in flexible pouches, allowing for efficient heat transfer and retention of nutrients.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional heating processing methods are used, then food products can be cooked and preserved, but the food is overcooked, nutrients are lost, and taste is degraded
Solution Approach 1:
The patent replaces traditional mechanical/thermal conduction heating systems with electromagnetic radiation heating (microwave or radio frequency). This substitution allows volumetric heating throughout the food product simultaneously, eliminating the gradual heat penetration that causes overcooking of outer layers while undercooking centers. The electromagnetic energy directly excites water molecules throughout the product, achieving uniform cooking at lower temperatures and shorter times, thereby preserving nutrients and taste while ensuring reliable preservation.
Solution Approach 2:
The patent employs periodic or pulsed electromagnetic heating cycles rather than continuous heating. By applying electromagnetic energy in controlled pulses with specific duty cycles, the system achieves thorough cooking through cumulative thermal effects while allowing brief cooling intervals that prevent excessive temperature rise. This periodic action enables precise control over the cooking process, maintaining nutrient content and taste while ensuring complete pasteurization or sterilization for preservation.
2Reliability
If traditional heating processing methods are used, then food products can be cooked, but the processing is inefficient and requires great warehouse space and devices
Solution Approach 1:
The patent replaces bulky mechanical heating equipment (ovens, steamers, autoclaves) with compact electromagnetic heating systems. Microwave or RF generators with appropriate coupling devices occupy significantly less space than traditional thermal processing equipment. The volumetric heating capability eliminates the need for large heating chambers, allowing rapid processing of entire product batches in small volumes. This substitution dramatically improves processing efficiency and reduces warehouse space requirements while maintaining effective food cooking and preservation.
Solution Approach 2:
The patent implements continuous electromagnetic heating processing where food products move continuously through the heating zone rather than being processed in batch cycles. This continuous action eliminates idle time between batches, maximizes equipment utilization, and maintains constant processing output. The electromagnetic field is continuously applied as products traverse the treatment zone, ensuring every portion receives the required energy dose without interruption, thereby achieving high productivity with compact equipment.
3Reliability
If traditional heating processing methods are used, then food products can be preserved, but the taste is degraded and preservatives must be added
Solution Approach 1:
The patent replaces prolonged thermal conduction heating with rapid electromagnetic heating, which cooks food volumetrically and uniformly throughout. This eliminates the temperature gradients that cause overcooking of external layers while the interior reaches required temperatures. The rapid, uniform heating at lower peak temperatures preserves volatile flavor compounds and textural qualities while achieving the same microbial destruction and enzymatic inactivation. Consequently, food maintains its natural taste without requiring chemical preservatives to extend shelf life.
Solution Approach 2:
The patent employs extremely short heating durations by applying high-power electromagnetic energy directly to the food product. The rapid heating process completes cooking and sterilization in seconds or minutes rather than hours, dramatically reducing the time food spends at elevated temperatures. This 'rushing through' the thermal process minimizes thermal degradation of flavor compounds, colors, and textures while still achieving complete pathogen destruction and enzyme inactivation for preservation, eliminating the need for preservative additives.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enables rapid and efficient heating of food products while maintaining nutrient value and flavor, reducing processing time and space requirements, and allowing for shelf-stable or refrigerated products with minimal thermal degradation.
Implementation Method 1
The food solution is continuously pumped from e.g. a hopper or container through an electromagnetic or volumetric source, which rapidly heats the food solution using at least one of a microwave generator, an RF source, or an Ohmic source.
Implementation Method 2
The food solution is continuously pumped from e.g. a hopper or container through an electromagnetic or volumetric source, which rapidly heats the food solution using at least one of a microwave generator, an RF source, or an Ohmic source.
Implementation Method 3
backpressure may be applied while the food solution is pumped through the rapid heating process so that the food solution has a higher pressure and thus, a higher boiling point.
Data Source
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AI summary
A method for continuous processing food product is provided. The method includes providing a food product and a solution. The food product and solution are mixed so that the food product is equally distributed in the solution forming a food solution. The food solution is continuously pumped from a hopper or container through an electromagnetic or volumetric source, which rapidly heats the food solution. The processed food solution may then be filled in packages, such as flexible pouches.