Plant Seed Conditioning via Non-Thermal Electric Field
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Solution Overview
Problem
Existing methods for conditioning plant seeds for comminution are inefficient, requiring significant storage space and time for moisture penetration, and struggle to effectively separate bran from endosperm due to the hydrophobic nature of the seed coat, which affects flour quality and yield.
Innovation Solution
Exposing plant seeds to a non-thermal electric field to modify their structure and texture, enhancing elasticity and wettability, followed by controlled cell disruption and moisture penetration, using a capacitor and pulsed electric fields to facilitate easier separation of seed coats and endosperm.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If plant seeds are subjected to conventional wetting processes, then moisture penetration occurs, but the process requires significant time (8-36 hours) and storage space
Solution Approach 1:
The patent replaces the conventional mechanical/physical wetting process (relying on capillary action and diffusion over extended periods) with an electrical field-based treatment. The electrical field modifies the seed coat structure and cell membranes, creating pathways that accelerate moisture penetration from minutes to hours, thereby reducing time loss while maintaining reliable separation effectiveness
Solution Approach 2:
The patent changes the physical-chemical parameters of the seed coat by applying an electrical field, which alters cell membrane permeability and hydrophobicity. This parameter change enables rapid moisture penetration without requiring extended standing times, thus resolving the contradiction between time efficiency and separation reliability
2Ease of manufacture
If the seed coat is kept intact for protection, then storage quality is maintained, but separation from endosperm becomes difficult during comminution
Solution Approach 1:
The patent applies a preliminary electrical field treatment to the seeds before comminution. This preliminary action modifies the seed coat structure and cell membrane integrity, creating controlled weaknesses that facilitate subsequent separation of the bran from the endosperm during milling, while the seed coat remains sufficiently intact to protect storage quality
Solution Approach 2:
The electrical field treatment creates local variations in the seed coat structure, particularly at the micropilotum region and cell membranes. These local quality changes make specific areas more susceptible to separation while maintaining overall seed coat integrity for storage protection, thus resolving the contradiction between separation ease and structural strength
3Quantity of substance
If hydrophobic seed coats are used, then water penetration is prevented, but this hinders moisture absorption needed for milling
Solution Approach 1:
The patent replaces the reliance on natural hydrophobic barrier properties with an electrical field-based modification system. The electrical field alters the hydrophobicity of the seed coat and cell membranes, creating hydrophilic pathways that enable rapid moisture absorption and penetration, thereby overcoming the harmful hydrophobic effect
Solution Approach 2:
The patent changes the surface chemistry and hydrophobicity parameters of the seed coat through electrical field treatment. This parameter change transforms the hydrophobic barrier into a more permeable, hydrophilic structure that actively facilitates moisture absorption, resolving the contradiction between maintaining hydrophobic protection and enabling necessary moisture uptake for milling
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
The method significantly reduces the time required for moisture penetration and improves the separation of bran from endosperm, increasing flour yield and quality by making the seed coat more elastic and the endosperm more accessible, thus optimizing the milling process.
Implementation Method 1
the plant seeds are exposed to a non-thermal electric field
Implementation Method 2
the plant seeds are exposed to a non-thermal electric field to modify their structure and texture, enhancing elasticity and wettability, followed by controlled cell disruption and moisture penetration
Implementation Method 3
the water does not penetrate across the entire grain, but initially only into cracks and crevices (capillaries) that extend deep into the endosperm
Data Source
Figure 1
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Figure 4
AI summary
The invention relates to a method for conditioning plant seeds (3) for milling and to a system (1) for milling plant seeds (3), comprising a conditioning system (2) for conditioning the plant seeds (3), a milling device (4) for milling the conditioned plant seeds (3), and a separating device (5) for separating different fractions of the milled plant seeds. In order to provide a method and a device which facilitate the subsequent milling of the plant seeds and positively influence the behaviour of the plant seeds during the milling process, according to the invention, the plant seeds (3) are exposed to an electrical field, or the conditioning system (2) has a capacitor (6) for generating an electrical field that acts on the plant seeds (3).