Freeze-Dried Soymilk Cheese Snack for Open-Package Flavor Stability
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Solution Overview
Problem
Cheese snacks made from milk deteriorate rapidly in flavor, making them unsuitable for long-term storage and consumption as human food.
Innovation Solution
Using soymilk as a base, adjusting its water, oil, and starch content, and pH through fermentation or acid addition, followed by freeze-drying to create a cheese-like snack with improved stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If cheese is dried for snack consumption, then portability and convenience are improved, but flavor deteriorates rapidly during storage
Solution Approach 1:
The patent applies parameter changes by adjusting the pH to 6.0 or lower and controlling specific compositional ratios (αS-casein 15-40%, β-casein 55-75%, κ-casein 5-20%) in the cheese preparation. These parameter adjustments prevent flavor deterioration during storage while maintaining the portability benefits of dried cheese snacks.
Solution Approach 2:
The patent uses composite materials by creating a specific protein composition blend of αS-casein, β-casein, and κ-casein in controlled ratios. This composite protein structure provides both the desired snack characteristics and enhanced storage stability, resolving the contradiction between portability and flavor stability.
2Ease of operation
If package is opened for consumption, then accessibility is improved, but flavor deterioration accelerates
Solution Approach 1:
By maintaining pH at 6.0 or lower and controlling the casein protein ratios, the patent extends the duration of flavor retention even after package opening. This allows consumers to access the snack conveniently while the controlled parameters prevent rapid oxidative and microbial degradation that would otherwise accelerate flavor loss.
Solution Approach 2:
The patent applies beforehand cushioning by pre-adjusting the pH and protein composition during manufacturing to create a stable matrix that resists flavor deterioration. This preparatory stabilization acts as a buffer against flavor loss that occurs after package opening, maintaining accessibility while extending usable duration.
3Reliability
If storage stability is improved through special processing, then flavor retention is enhanced, but production complexity increases
Solution Approach 1:
The patent achieves storage stability through parameter changes in pH (≤6.0) and protein composition ratios rather than complex processing equipment. By controlling these fundamental parameters during standard cheese making, enhanced storage stability is obtained without requiring specialized processing devices or complex production lines.
Solution Approach 2:
The patent copies the successful storage stability approach from traditional cheese making by utilizing natural casein protein characteristics and pH control, rather than inventing entirely new complex processing methods. This allows storage stability enhancement while maintaining relatively simple, conventional production processes.
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 resulting cheese-like snack maintains flavor and texture for several weeks, even when exposed to open environments, unlike traditional cheese snacks.
Implementation Method 1
freeze-drying a soymilk preparation prepared by adding an oil and fat, and starch to soymilk
Data Source
AI summary
Provided is a cheese-like snack food that is capable of maintaining flavor for several weeks even in a state where a package is opened and has improved storage stability. The cheese-like snack food having improved storage stability can be provided by freeze-drying a soymilk preparation prepared by using soymilk as a raw material, adding an oil and fat, and starch to the soymilk, and adjusting pH to 6 or less.