Rice Starch Gelatinization for Nutrient Penetration
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Solution Overview
Problem
Milled rice is deficient in essential nutrients, leading to severe malnutrition issues, particularly in regions where it is a staple food, and existing fortification methods fail to effectively penetrate nutrients into the grain, causing oxidation and storage problems.
Innovation Solution
The method involves gelatinization and recrystallization of rice starch to allow micronutrients to penetrate the grain, using high-speed particle infusion and minimal chemical reagents, enabling the direct fortification of milled rice without altering its texture or taste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If existing fortification methods coat rice grains with micronutrients using large molecules, then the rice grains can be fortified with nutrients, but the nutrients can be washed away even before cooking and are subjected to oxidation leading to storage problems
Solution Approach 1:
The invention utilizes the porous structure of rice grains to allow nutrient particles to penetrate into the grain interior through capillary action. The pores and channels within the rice grain structure serve as pathways for nutrient delivery, enabling deep penetration rather than surface coating only. This ensures nutrients are locked inside the grain matrix where they cannot be easily washed away or oxidized during storage.
Solution Approach 2:
The invention replaces conventional coating methods with a particle penetration mechanism. Instead of applying large molecule coatings that remain on the surface, the method uses high-speed particle infusion where fine nutrient particles are forced into the grain structure through mechanical penetration. This substitution of the delivery mechanism fundamentally changes how nutrients are retained - embedded within the grain rather than coating the surface.
2Productivity
If high-speed particle infusion is used to penetrate nutrients into the grain, then nutrient penetration efficiency is improved, but the process complexity increases
Solution Approach 1:
The invention employs pneumatic mechanisms to generate high-speed particle infusion. Compressed air or gas flows are used to accelerate nutrient particles to high velocities, enabling them to penetrate the rice grain structure effectively. This pneumatic approach provides a relatively simple and scalable method compared to more complex mechanical injection systems, as it utilizes fluid dynamics to achieve the required particle penetration speed and force.
3Quantity of substance
If starch crystalline structure is manipulated to allow nutrient penetration, then nutrient absorption is improved, but the risk of altering rice texture and taste increases
Solution Approach 1:
The invention utilizes controlled parameter changes in the starch crystalline structure to facilitate nutrient penetration. By adjusting parameters such as moisture content, temperature, and starch gelatinization degree, the grain structure becomes temporarily more permeable to nutrient particles. After penetration, the parameters are restored to their original states, allowing the starch to recrystallize and recover its native texture and taste properties. This temporary parameter modification enables nutrient uptake without permanent structural alteration.
Solution Approach 2:
The invention applies preliminary treatment to the rice grains before nutrient infusion to temporarily modify the starch crystalline structure. This preliminary action involves controlled gelatinization or structural softening that creates pathways for nutrient penetration. After the nutrient infusion is complete, the grains undergo recovery treatment that restores the starch structure to its original configuration, ensuring that texture and taste are preserved while nutrients remain embedded within the grain matrix.
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 ensures stable nutrient retention during storage and cooking, providing enhanced nutritional value without changing the rice's appearance or taste, and can be scaled for large-scale production with minimal training.
Implementation Method 1
The present invention utilizes starch gelatinization and retrogradation characteristics to assist fortificant penetration
Implementation Method 2
The invention utilizes high speed and/or pressure particles to spray the rice grains so that the nutrient particles penetrate the grains
Implementation Method 3
The present invention utilizes starch gelatinization and retrogradation characteristics to assist fortificant penetration
Data Source
AI summary
The methods of the invention provide improved rice grain nutrition by manipulation of the rice starch crystalline structure leading to easier penetration of nutrients into the rice grain and enhancement of rice grains with nutrients, thereby creating enhanced rice grain products. In addition, methods of direct delivery of nutrients into rice grains are also presented.