Confectionery Heat Stability via Solvent Recrystallization
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Solution Overview
Problem
Confectionery products, particularly those containing fats like cocoa butter, face challenges in maintaining texture quality due to melting issues when exposed to high temperatures during storage and distribution, leading to reduced hardness.
Innovation Solution
A method involving the use of a non-aqueous solvent, specifically ethanol with less than 1.5% w/w water, and ensuring the average particle size of sweeteners is less than 50µm, which enhances heat resistance without the need for ethylcellulose, allowing for improved heat stability and reduced residual water content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional chocolate production methods are used, then the product has desirable melting characteristics, but the product loses hardness and texture quality when stored at high temperatures
Solution Approach 1:
The invention changes the chemical composition parameters of the chocolate by incorporating specific compounds (cocoa polyphenols, caffeine, theobromine) that modify the thermal properties of the fat phase, allowing the chocolate to maintain its structure at elevated temperatures while preserving melting characteristics at lower temperatures
Solution Approach 2:
The invention creates a composite confectionery system where multiple functional components (fats, polyphenols, alkaloids) work synergistically to provide both melting properties and heat stability, transforming a single-material system into a multi-component composite with enhanced performance
2Temperature
If liquid is added to enhance heat tolerance, then the heat resistance improves, but the processing energy requirements increase due to stoving
Solution Approach 1:
The invention removes the need for high-energy stoving processes by using compounds that provide heat stability through molecular interactions rather than requiring extensive evaporation of liquid phases, thereby extracting the harmful energy-intensive step from the process
Solution Approach 2:
The invention uses naturally occurring compounds in the chocolate that provide temporary heat protection during storage and distribution, eliminating the need for permanent structural modifications or expensive additives that would require energy-intensive processing
3Temperature
If ethylcellulose is used to achieve heat resistance, then the heat stability improves, but the device complexity and ingredient complexity increase
Solution Approach 1:
The invention allows the chocolate's own natural components (polyphenols, caffeine, theobromine) to provide heat stability functionality, eliminating the need for external agents like ethylcellulose and simplifying the ingredient list while maintaining the desired performance
Solution Approach 2:
The invention makes the existing chocolate ingredients multi-functional by demonstrating that compounds already present in chocolate (polyphenols, alkaloids) can simultaneously provide flavor, color, and heat stability functions, replacing the need for specialized heat-resistant additives
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 results in confectionery products with enhanced heat stability and reduced energy requirements for processing, as demonstrated by improved hardness tests after storage, indicating better resistance to temperature fluctuations.
Implementation Method 1
partial dissolution and recrystallisation of the bulk sweetener in the water
Implementation Method 2
the ethanol is used as a solvent for the ethylcellulose and is subsequently evaporated off from the chocolate
Implementation Method 3
the heat tolerance of the resultant chocolate is enhanced as a result of the recrystallisation of the sweetener in the form of a stable three dimensional lattice
Data Source
Figure 1~2
Figure 3A~3B
Figure 4~5
AI summary
A method for preparing a heat tolerant confectionery product comprising a fat and a sweetener, said method comprising combining together a confectionery composition comprising a fat and a sweetener and a non-aqueous solvent, and wherein the non-aqueous solvent is one in which the sweetener is partially soluble, such as ethanol. Enhanced hardness is achieved by ensuring that either (a) the average particle size of the sweetener is less than 50μιη, for example from 4-20μιη; or (b) the non-aqueous solvent contains less than 4%w/w water.Confectionery such chocolate obtained by this process forms a further aspect of invention.