Fat Composition for Chocolate Shell Migration Prevention
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Solution Overview
Problem
Existing chocolate confectioneries face issues with oil-and-fat migration leading to bloom and softening when combined with chocolate, as existing solutions either compromise on texture, flavor, or are impractical.
Innovation Solution
An oil-and-fat composition with specific triglyceride ratios, including 50% or more StOSt, high SOS content, controlled ratios of StLSt, StStO, StOO, and POO, and a high-oleic plant oil interesterified with stearic acid or stearic acid ester, which forms a stable crystal structure to prevent migration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If hard oil-and-fat (cocoa butter, cocoa butter alternative) is used for the shell part, then the shell structure is maintained, but the center part becomes too hard and loses softness and creaminess
Solution Approach 1:
The patent applies different oil-and-fat compositions to different parts of the confectionery: the shell part uses hard oil-and-fat (cocoa butter, cocoa butter alternative) to maintain structural integrity, while the center part uses soft oil-and-fat (palm oil, vegetable oil) to provide softness and creaminess. This local differentiation resolves the contradiction between shell structure maintenance and center mouthfeel quality.
2Ease of operation
If soft oil-and-fat is used for the center part, then softness and meltability are improved, but oil-and-fat migration occurs from center to shell causing bloom and softening
Solution Approach 1:
The patent applies a coating layer at the interface between the center part and shell part that prevents oil-and-fat migration before it can occur. This preliminary protective action blocks the harmful migration pathway, allowing the center part to maintain softness and meltability without compromising composition stability.
Solution Approach 2:
The coating layer acts as an intermediary substance between the center part (soft oil-and-fat) and shell part (hard oil-and-fat). This intermediate layer prevents direct contact and migration between the two oil-and-fat compositions, resolving the contradiction between maintaining softness and preventing composition instability.
3Quantity of substance
If fat stabilizer system is added to center cream, then cost is reduced, but flavor deteriorates and texture becomes waxy
Solution Approach 1:
The patent extracts the fat stabilizer function from the center cream composition itself and places it in a separate coating layer at the interface. This extraction allows the center cream to maintain its natural flavor and creamy texture while the coating layer provides the necessary stabilization function, preventing waxy texture and flavor deterioration.
Solution Approach 2:
The coating layer serves as an intermediary that provides fat stabilization functionality without being mixed into the center cream. This separates the stabilization function from the flavor-bearing center cream, preventing the stabilizer from negatively affecting taste and texture while still providing cost-effective stabilization.
4Stability of the object's composition
If coating with sugar, protein, or polysaccharide film is applied at the interface, then oil-and-fat migration is blocked, but texture becomes uncomfortable and process complexity increases
Solution Approach 1:
The patent changes the parameters of the coating layer by using an oil-and-fat composition with specific triglyceride ratios (high SOS content, controlled StLSt/StOSt ratio, controlled POO/StOO ratio) rather than traditional sugar, protein, or polysaccharide films. This parameter change maintains migration prevention effectiveness while improving texture and simplifying the coating process.
Solution Approach 2:
The coating layer is formed from an oil-and-fat composition that is homogeneous in nature, matching the material system of the confectionery itself. This homogeneity ensures compatible texture and simplifies the coating process compared to introducing foreign materials like sugar films or protein coatings.
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 composition effectively prevents low-temperature bloom and softening while maintaining excellent meltability and compatibility with cacao butter, enhancing the chocolate's resistance to oil-and-fat migration.
Implementation Method 1
an oil-and-fat composition which comprises 40 to 90 wt% of oil-and-fat (A) and 10 to 60 wt% of oil-and-fat (B), wherein the oil-and-fat (A) is an oil-and-fat comprising 50 wt% or more of StOSt, and the oil-and-fat (B) is an oil-and-fat which is liquid at 26°C, and which meets the following conditions (a) to (f): (a) an SOS triglyceride content in the oil-and-fat composition is more than 45 wt%, (b) an StOSt content in the oil-and-fat composition is 30 wt% or more, (c) a ratio of StLSt/StOSt in the oil-and-fat composition is 0.08 or less, and (d) a ratio of POO/StOO in the oil-and-fat composition is 0.50 or more
Data Source
AI summary
Provided are: an oil or fat composition, which is capable of preventing the migration of oil or fat in a combined confectionery that comprises a combination of a chocolate with an oil or fat-based food material, has a good tolerance against cold blooming that is caused by the migration of oil or fat and softening of a chocolate, and enables the production of a chocolate having a high meltability in mouth; a chocolate using the oil or fat composition; and a combined confectionery using the chocolate.