Stearic Hardstock Fat Blend for Spreadable Water-in-Oil Emulsions
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing fat compositions used in water-in-oil emulsions, such as margarine or spread, suffer from issues like undesirable hardness, poor spreadability, brittleness, irregular structure, and graininess, leading to poor organoleptic properties.
Innovation Solution
A fat composition comprising at least 30% stearic acid (C18:0) and at least 45% saturated fatty acid (SAFA) with specific triglyceride ratios, including 1.0% to 8.0% SSS triglycerides and at most 10.0% UUU triglycerides, is developed to improve appearance and sensory properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If shea stearin, shea butter or cocoa butter are used as structure-forming fat composition without modification, then the water-in-oil emulsion has improved structure and texture, but the product exhibits undesirable hardness, poor spreadability and texture during storage and use due to significant post-crystallization effect
Solution Approach 1:
The patent modifies the fat composition by controlling the triglyceride profile parameters - specifically limiting SSS triglycerides to 1-8% and UUU triglycerides to at most 10%, while maintaining stearic acid at least 30% and saturated fatty acids at least 45%. This parameter optimization reduces post-crystallization hardness while preserving structure, resolving the contradiction between stability and spreadability
Solution Approach 2:
The invention creates a composite fat blend combining modified structure-forming fat composition with liquid or semi-liquid oils/fats in specific ratios (at least 20% and at most 80% respectively). This composite approach balances the structural benefits of saturated fats with the spreadability of liquid oils, eliminating the harsh post-crystallization effect of pure shea or cocoa butter
2Strength
If completely interesterified hardstock is used, then the margarine product has improved hardness, but the product exhibits undesirable brittleness, irregular structure and graininess tendency resulting in poor spreadability and organoleptic properties
Solution Approach 1:
The patent optimizes the triglyceride distribution parameters to achieve the right balance - SSS triglycerides are limited to 1-8% (providing hardness without brittleness), UUU triglycerides are kept at most 10% (preventing graininess), and S2U triglycerides are maintained at 20-60% (ensuring smooth structure). This parameter control resolves the contradiction between hardness and spreadability that plagues completely interesterified hardstock
3Strength
If the fat composition contains high levels of SSS triglycerides to improve hardness and structure, then the water-in-oil emulsion has desirable firmness, but the product develops graininess tendency and irregular structure
Solution Approach 1:
The patent precisely controls the SSS triglyceride content at 1-8% and balances it with S2U triglycerides at 20-60%, creating a harmonious triglyceride profile. This optimized parameter combination provides sufficient firmness while preventing the graininess and irregular structure that result from excessive SSS triglycerides, resolving the contradiction between firmness and structural regularity
Data Source
AI summary
The invention relates to a fat composition comprising at least 30% by weight of stearic acid (C18:0); and at least 45% by weight of saturated fatty acid (SAFA); and wherein the fat composition comprises from 1.0% to 8.0% by weight of SSS triglycerides; and at most 10.0% by weight of UUU triglycerides and has a weight ratio of S2U triglycerides to SSS triglycerides from 6.0 to 20.0 and a weight ratio of S2O triglycerides to S2L triglycerides at most 30.0; wherein S is saturated fatty acid, U is unsaturated fatty acid, O is oleic acid and L is linoleic acid. The invention also relates to a fat blend including the fat composition as hardstock where the fat blend is further used in a water-in-oil emulsion product, such as margarine or spread.