Weight-Guided Two-Stage Cooking for Lower-Glycemic Starch Foods
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Solution Overview
Problem
Current cooking methods for starch-based foods, such as potatoes, result in high glycemic index due to rapid digestible starch, which contributes to metabolic diseases like obesity and diabetes, and require complex processing or harmful chemicals to reduce rapidly digestible starch, making it challenging to achieve a healthy and appetizing product using home kitchen appliances.
Innovation Solution
A two-stage cooking device and method that uses a weighing scale and controller to monitor weight changes, cooking starch-based foods at a first temperature above gelatinization temperature followed by a second temperature above 150°C to reduce rapidly digestible starch and achieve a balanced, appetizing final product, suitable for implementation as a low-cost kitchen appliance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional cooking methods are used to cook starch-based foods, then the food is fully gelatinized and easily digestible, but the glycemic index becomes high and rapidly digestible starch increases
Solution Approach 1:
The cooking process is divided into multiple stages with different temperature profiles. The patent applies a first cooking stage at a first temperature followed by a second cooking stage at a second temperature, segmenting the gelatinization process to control starch structure and reduce rapidly digestible starch while maintaining ease of cooking.
Solution Approach 2:
The patent changes temperature parameters during the cooking process by applying different temperatures at different stages. This parameter change approach allows control over the gelatinization程度, reducing glycemic index while keeping the cooking process simple and easy to implement.
2Object-generated harmful factors
If complex physical and chemical procedures are used to generate resistant starch, then rapidly digestible starch is reduced, but the processing complexity increases and harmful chemical reagents are required
Solution Approach 1:
The patent replaces complex chemical procedures with a simplified thermal processing system. By using controlled temperature stages instead of chemical reagents and complex equipment, the invention reduces rapidly digestible starch through purely thermal means, eliminating the need for harmful chemicals and complex processing machinery.
Solution Approach 2:
The patent employs a simple, affordable cooking device with basic heating capability rather than expensive industrial equipment. The approach uses readily available kitchen appliances to achieve resistant starch formation, making the solution accessible and eliminating the need for costly complex processing systems.
3Object-generated harmful factors
If low temperature treatment is used to reduce water content below 35%, then resistant starch may be increased, but the cooking time becomes excessively long
Solution Approach 1:
The patent applies periodic or staged heating action with distinct temperature phases. By alternating between different temperature stages, the process achieves efficient water content reduction and resistant starch formation without requiring excessively long continuous low-temperature treatment, thus reducing overall cooking time.
Solution Approach 2:
The patent utilizes phase transition principles by applying temperature stages that promote controlled moisture evaporation and starch transformation. The second cooking stage at higher temperature accelerates water content reduction and resistant starch formation, avoiding the time-consuming prolonged low-temperature treatment while achieving the desired starch modification.
4Ease of operation
If the food is cooked to be appetizing with normal texture, then consumer satisfaction is improved, but rapidly digestible starch content increases
Solution Approach 1:
The patent applies different temperature conditions at different stages to create local variations in starch structure. The first temperature stage and second temperature stage produce different local starch properties, creating regions with resistant starch characteristics while maintaining overall food texture and taste quality that consumers find appetizing.
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 effectively reduces rapidly digestible starch, improves the tasting quality, and lowers the glycemic index of cooked foods, producing a healthier and more appealing product while being suitable for domestic use, reducing the risk of obesity and diabetes.
Implementation Method 1
cook the starch-based food item at a first temperature for a first time duration, wherein the first temperature is higher than a starch gelatinization temperature
Implementation Method 2
cook the starch-based food item at a second temperature for a second time duration sufficient for the weight of the starch-based food item to drop by a second amount, such that a total drop of the first and second amounts relative to the initial weight is within a second range, wherein the second temperature is higher than the first temperature and above 150° C.
Implementation Method 3
a weighing scale for weighing the food item during cooking
Data Source
AI summary
The present disclosure relates to a device for cooking a starch-based food item. The device comprises a vessel for receiving a quantity of the starch-based food item with an initial weight; a weighing scale for weighting the food item during cooking; a heater for heating the starch-based food item; and a controller coupled to the weighing scale and the heater. The controller causes the heater to cook the starch-based food item at a first temperature for a first time duration, the first temperature is higher than a starch gelatinization temperature; and causes the heater, based on the weighing scale reading, to cook the starch-based food item at a second temperature for a second time, where the second temperature is higher than the first temperature and above 150° C. The device makes cooked food healthier and more appetizing, which is beneficial to health especially for individuals with diabetes and obesity.