Popped Seed Surface Sealing via Rapid Thermal Cycling
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Solution Overview
Problem
Puffed seeds with large outer surfaces have low moisture content, making them difficult to process further due to their tendency to dry out or absorb moisture.
Innovation Solution
A method involving sudden heating of popped seeds to a roast operating temperature at least 50% above the puffing temperature for a short period, followed by abrupt cooling to below 10°C, which seals the outer surface and prevents moisture loss, allowing for further processing without drying or absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If puffed seeds are processed further, then additional processing steps (moistening, breading, frying, spicing) can be performed, but the seeds tend to dry out or absorb moisture due to their large outer surface area
Solution Approach 1:
The patent applies preliminary action by performing sudden heating followed by abrupt cooling to seal the outer surface of puffed seeds before further processing. This preliminary thermal treatment creates a protective barrier that prevents moisture loss or absorption during subsequent processing steps, enabling reliable further processing without moisture instability
Solution Approach 2:
The patent utilizes parameter changes by rapidly changing temperature parameters - heating to at least 50% above puffing temperature (e.g., 200-300°C) for 30 seconds, then abruptly cooling to below 10°C. This extreme parameter change seals the seed surface structure, transforming it from a moisture-permeable state to a moisture-barrier state, thereby enabling stable further processing
2Reliability
If the outer surface of puffed seeds is left open, then moisture can be absorbed or lost, but sealing the surface prevents further processing
Solution Approach 1:
The sealing action is performed as a preliminary step before further processing operations. By sealing the surface first through sudden heating and abrupt cooling, the patent prepares the seeds for subsequent processing steps without moisture interference, maintaining both moisture retention and processing flexibility
Solution Approach 2:
The rapid temperature parameter change (heating to 200-300°C then cooling to below 10°C) creates a sealed surface structure that is compatible with further processing. The sealing is not permanent but created temporarily to enable processing, after which the seeds can be moistened, breaded, fried, and spiced without moisture issues
3Reliability
If high temperature roasting is applied to puffed seeds, then moisture loss is prevented, but the seeds may burn or become overcooked
Solution Approach 1:
The patent applies periodic action by implementing a time-limited high-temperature heating phase (30 seconds) followed by abrupt cooling. This periodic thermal treatment - hot for a short duration, then cold - seals the surface to prevent moisture loss while avoiding prolonged heat exposure that would cause burning or overcooking
Solution Approach 2:
The patent skips the intermediate slow-heating phase and rushes directly to high temperature (at least 50% above puffing temperature) for a brief 30-second period, then immediately cools. This rushed thermal process achieves surface sealing without allowing the heat to penetrate and cause burning or overcooking of the seed interior
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 stabilizes the popped seeds, enabling them to be processed without moisture loss or absorption, making them suitable for additional steps like moistening, breading, frying, and spicing, and ensuring they remain stable for further processing.
Implementation Method 1
A sudden heating of the popped seeds within about 30 seconds on a roast operating temperature for roasting the popped seeds... the outer surface of the popped seeds closes to a kind of cocoon which no longer tends to pass moisture into the interior of the inspired seeds
Implementation Method 2
abrupt deterring of the popped and roasted seeds At a temperature below 10 ° C within about 30 seconds to stop the roasting process
Implementation Method 3
the roast operating temperature is at least 50% above the operating temperature required to be infiled... the roasting process is performed at a roast operating temperature, which is at least 50% above the operating temperature required to buff the seed
Data Source
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AI summary
The invention relates to a method for further processing a puffed foodstuff based on poppable seeds. A method which permits further processing of seeds that have already been popped is characterized according to the invention by the method steps: a) abruptly heating the popped seeds to a roasting operating temperature in order to roast the popped seeds, wherein the roasting operating temperature lies at least 50% above the operating temperature required for popping the seeds, and b) abruptly chilling the popped and roasted seeds in order to end the roasting process. The invention furthermore relates to a device for carrying out said method.