Low-Fat Water-in-Oil Emulsion With Phospholipid Stability Control
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Solution Overview
Problem
Low-fat water-in-oil emulsions face instability issues such as flocculation, creaming, and poor mouthfeel due to the use of saturated fatty acids and powerful emulsifiers like PGPR, which affect melting behavior and flavor release.
Innovation Solution
A low-fat water-in-oil emulsion stabilized with an emulsifier composition comprising acetone-insoluble phospholipids, specifically Phosphatidyl Choline, Phosphatidyl Inositol, Phosphatidyl Ethanolamine, and Phosphatidic Acid, in specific ratios, achieving optimal stability and mouthfeel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the fat content is reduced below 60 wt%, then the emulsion becomes less stable and exhibits flocculation, creaming, and Ostwald ripening, but reducing fat content is necessary for low-fat food products
Solution Approach 1:
The patent changes the chemical composition parameters of the emulsifier system by specifying precise ratios of phospholipids (PC, PI, PE, PA) and using acetone-insoluble fraction, which fundamentally alters the emulsion's stability characteristics at low fat content
Solution Approach 2:
The patent employs a composite emulsifier system comprising multiple phospholipid types (PC, PI, PE, PA) in specific ratios within the acetone-insoluble fraction, creating a synergistic effect that provides superior stability compared to single emulsifiers
2Stability of the object's composition
If powerful emulsifiers like PGPR and monoglycerides are used to stabilize low-fat W/O emulsions, then emulsion stability is improved, but the melting behavior and mouthfeel are negatively affected
Solution Approach 1:
The patent changes the chemical nature of the emulsifier from conventional powerful emulsifiers (PGPR, monoglycerides) to a specific phospholipid composition in the acetone-insoluble fraction, which provides adequate stability without interfering with melting behavior
Solution Approach 2:
The patent replaces expensive and functionally problematic emulsifiers (PGPR, monoglycerides) with a more natural phospholipid-based emulsifier system that achieves sufficient stability without the unwanted side effects
3Stability of the object's composition
If powerful emulsifiers are used in low-fat W/O emulsions, then stability is achieved, but water droplets carrying flavors do not effectively break in the mouth, affecting taste release
Solution Approach 1:
The patent modifies the emulsifier's molecular structure and composition by using specific phospholipids in the acetone-insoluble fraction, which provides the right balance between stability and controlled breakdown in the mouth
Solution Approach 2:
The patent extracts and utilizes the acetone-insoluble fraction containing specific phospholipids, separating the beneficial stabilizing components from other substances that might interfere with flavor release
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 emulsion maintains stability at various temperatures, ensures easy spreading, optimal flavor release, and improved mouthfeel without using acylglycerols, providing a clean label solution.
Implementation Method 1
A low-fat water-in-oil (W/O) emulsion comprising (I) a fat phase in an amount of at most 60 wt% relative to the total weight of the emulsion; (II) an aqueous phase dispersed within the fat phase; and (III) an emulsifier composition
Implementation Method 2
the emulsifier composition is characterized by a weight ratio R of at most 65%, the ratio R being defined according to Formula 1: where R=1-R1 and R1=((PC+PI+PE+PA)/AI)*100
Data Source
Figure 1.1~1.3
AI summary
The present invention relates to a low-fat water-in-oil (W/O) emulsion comprising a fat phase in an amount of at most 60 wt% relative to the total weight of the emulsion, an aqueous phase dispersed within the fat phase and an emulsifier composition, said emulsifier composition comprising an Acetone-insoluble (AI) component containing a Phosphatidyl Choline (PC), a Phosphatidyl Inositol (PI), a Phosphatidyl Ethanolamine (PE) and a Phosphatidic Acid (PA), wherein PC is in an amount of at most 15.5% relative to the total weight of the emulsifier composition and wherein the emulsifier composition is characterized by a weight ratio R of at most 65%, the ratio R being defined as (1) wherein PC+PI+PE+PA is the sum of the individual weights of the respective constituents of the AI component and AI is the total weight of the AI component.