Heat-Treated Wheat Flour Coating for Crispy Fried Food
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Solution Overview
Problem
Existing techniques for preparing coated fried foods face challenges in achieving a crispy coating texture and good workability of coating materials, particularly due to the difficulty of wheat flour dispersion in water and the need for high cooking skill.
Innovation Solution
Modified heat-treated wheat flour with a specific RVA peak viscosity of 3500 to 7000 mPa·s and a gelatinization onset temperature at least 10°C lower than unmodified wheat flour, improving dispersibility and coating texture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wheat flour is used as coating material, then the coating provides basic structure and flavor, but the flour is difficult to disperse in water resulting in poor workability and time-consuming preparation
Solution Approach 1:
The wheat flour is pre-modified by heat treatment before use, which preliminarily alters its gelatinization properties. This preliminary action enables the flour to disperse more easily in water during actual coating preparation, reducing preparation time and improving workability without requiring extensive mixing time.
Solution Approach 2:
The patent changes the physical and chemical parameters of wheat flour through heat treatment, specifically modifying its gelatinization temperature and viscosity characteristics. These parameter changes transform the flour from difficult-to-disperse to easily dispersible in water, directly improving ease of operation while maintaining coating quality.
2Manufacturing precision
If conventional wheat flour is used for coating, then the coating can be applied, but it requires high cooking skill for temperature control and mixing to achieve desired crispy texture
Solution Approach 1:
The desired crispy coating texture is achieved through preliminary heat treatment of the wheat flour, which pre-configures the starch and protein structure. This preliminary action eliminates the need for skilled temperature control and mixing during cooking, as the modified flour automatically provides the desired texture when simply dispersed in water and applied.
Solution Approach 2:
The modified wheat flour is self-sufficient in providing crispy coating texture without requiring skilled operator intervention. The flour's modified properties enable it to self-regulate the coating formation process, making high-quality results achievable by anyone without specialized cooking skills.
3Stability of the object's composition
If wheat flour is dispersed in water to make batter, then coating can be applied, but the batter quality changes with time requiring immediate use
Solution Approach 1:
The wheat flour undergoes preliminary heat treatment to stabilize its composition before batter preparation. This preliminary modification makes the flour more stable when dispersed in water, allowing the resulting batter to maintain consistent quality over an extended time period rather than degrading immediately.
Solution Approach 2:
The heat treatment changes the gelatinization parameters of the wheat flour, making it less sensitive to time-dependent quality changes. This parameter modification extends the usable time window of the batter while maintaining stable composition, allowing flexible preparation and application timing.
4Manufacturing precision
If heat treatment is applied to wheat flour, then coating adhesion and texture can be improved, but excessive heat treatment reduces gluten vitality affecting coating structure
Solution Approach 1:
The patent optimizes the heat treatment parameters (temperature, time, moisture content) to achieve the desired balance. By precisely controlling these parameters, the flour gains improved coating adhesion and crispy texture while maintaining sufficient gluten vitality (90-98% of untreated flour) to support the coating structure.
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 modified wheat flour enables easier preparation of a batter with improved workability, resulting in coated fried foods with a crispy and desirable coating texture.
Implementation Method 1
modified heat-treated wheat flour having a RVA peak viscosity of 3500 to 7000 mPa·s and a gelatinization onset temperature lower than that of unmodified wheat flour by at least 10°C
Data Source
AI summary
Modified wheat flour for use in the preparation of coated fried food includes a heat treated product of unmodified wheat flour and having an RVA peak viscosity of 3500 to 7000 mPa·s and a gelatinization onset temperature lower than that of the unmodified wheat flour by at least 10°C. The unmodified wheat flour preferably has a gelatinization onset temperature of 70° to 86°C. The unmodified wheat flour preferably has an RVA peak viscosity of 3000 to 5000 mPa·s. The modified wheat flour has good water dispersibility and provides coated fried foods having a crispy coating.