Radio Frequency Heating for Vegetable Feed Nutritional Value
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Solution Overview
Problem
Existing methods for increasing the nutritional value of vegetable materials for ruminants often rely on chemical treatments or incomplete heating methods, which can lead to inefficiencies, safety concerns, and inhomogeneous products.
Innovation Solution
The method involves subjecting vegetable materials to direct heating using radio frequency (RF) radiation in the range of 27.12 MHz ±0.6%, achieving temperatures between 110°C and 165°C, to enhance the nutritional value without chemical reagents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If microwave radiation is used for heating, then heating speed is improved, but heating homogeneity deteriorates and only outer layer is sufficiently heated
Solution Approach 1:
The patent replaces microwave heating with radio frequency electromagnetic field heating. Both are electromagnetic radiation methods, but RF heating at lower frequencies (3-300 MHz) provides deeper penetration and more uniform heating throughout the material volume, resolving the homogeneity issue while maintaining rapid heating speeds through direct molecular polarization and friction.
Solution Approach 2:
The patent changes the frequency parameter of electromagnetic radiation from microwave range (2.45 GHz) to radio frequency range (3-300 MHz). This parameter change fundamentally alters the penetration depth and heating characteristics, enabling uniform heating throughout the entire material rather than just the surface layer.
2Reliability
If compressive pressure heating is used, then protein utilization is improved, but risk of excessive heating increases leading to indigestible protein
Solution Approach 1:
The patent employs feedback control through temperature monitoring during RF heating process. The system adjusts heating parameters based on real-time temperature measurements to maintain heating within the optimal range (below 120°C), preventing excessive heating that would create indigestible protein while ensuring sufficient heating for protein utilization.
Solution Approach 2:
The patent uses dynamic control of heating parameters including variable power levels, pulsed heating cycles, and adjustable heating duration. This dynamic approach allows precise control over the heating process, ensuring proteins are heated to the optimal degree for utilization without exceeding temperatures that would create indigestible compounds.
3Reliability
If chemical treatment is used, then nutritional value is improved, but use of chemical reagents creates safety concerns
Solution Approach 1:
The patent replaces chemical treatment methods with physical radio frequency electromagnetic field heating. This substitution eliminates the need for chemical reagents entirely, using only electromagnetic energy to modify the vegetable material's nutritional properties through controlled heating, thereby removing safety concerns associated with chemical residues.
Solution Approach 2:
The patent uses energy as a temporary, consumable resource rather than introducing persistent chemical substances. The RF electromagnetic energy is applied, performs its heating function, and is then dissipated, leaving no harmful residues in the feed material, unlike chemical treatments that may leave lasting contaminants.
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 effectively increases the rumen undegradable protein (RUP), starch, and fat fractions, leading to improved nutritional value and efficiency in ruminant feed, while maintaining the protein and starch content on a dry matter basis.
Implementation Method 1
subjecting a vegetable material to heating by means of radiation in the radio frequency range
Implementation Method 2
heating by means of radiation in the radio frequency range (also called RF heating in the present invention)
Implementation Method 3
direct heating by means of radiation in the radio frequency range
Data Source
Figure 1
AI summary
The present invention relates to a method for increasing the nutritional value of a vegetable material by subjection of avegetable material to heating by means of radiation in the radio frequency range. preferably the vegetable material is selected from grains. tubers and residual vegetable materials and one or more combinations thereof. The present invention is moreover related to a vegetable material having an improved nutritional value obtainable by a method according to the invention and to the use of the vegetable material as a feed for animals. preferably for ruminants or for preparing a mixed feed for animals, preferably ruminants.