Structured Oil-in-Water Emulsion as Fat Substitute
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Solution Overview
Problem
The challenge is to find substitutes for trans and saturated fats in food products that provide similar solid-like behavior and network structuring capabilities without compromising the quality and structure of the food, as these fats are detrimental to health and have been restricted in commercial products.
Innovation Solution
A novel oil-in-water structured emulsion is developed, comprising an oil phase with 30-60% oil, 0.01-15% wax, and a combination of non-ionic and ionic surfactants in a specific ratio, along with an aqueous phase, which is heated and cooled to form a solid with surfactant-encapsulated oil layers, enhancing the elastic modulus and yield stress for use as a healthier fat substitute.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If trans and saturated fats are eliminated from food products, then health risks are reduced, but solid-like behavior and network structuring capabilities are compromised
Solution Approach 1:
The patent changes the physical state parameters of the emulsion by controlling temperature and composition ratios. The emulsion transitions from liquid to solid-like state through temperature reduction and optimization of oil-to-aqueous phase ratios, enabling trans-fat-free products to achieve desired structural properties
Solution Approach 2:
The invention creates a composite structured emulsion combining oil phase, aqueous phase, and emulsifier components in specific ratios. This composite system provides network structuring capabilities similar to traditional fats while eliminating harmful trans and saturated fats through the use of liquid vegetable oils
2Object-affected harmful factors
If liquid vegetable oils are used to substitute trans and saturated fats, then health benefits are improved, but rheological properties such as yield stress and elastic modulus are reduced
Solution Approach 1:
The patent optimizes physical parameters including temperature control during processing and storage, and precise composition ratios of oil phase (30-70%), aqueous phase (30-70%), and emulsifier (1-10%). These parameter changes enable the emulsion to achieve solid-like rheological properties without requiring trans or saturated fats
Solution Approach 2:
The invention utilizes phase transition principles by controlling the temperature-dependent behavior of the emulsion. The structured emulsion maintains liquid state during processing but transitions to solid-like state during storage or cooling, providing desired rheological properties for food applications while using only liquid vegetable oils
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 solution effectively increases the elastic modulus and yield stress of the emulsion, making it suitable as a low-fat substitute for solid fats, such as laminating fats, while reducing trans and saturated fat content, thus offering a healthier alternative for food products.
Implementation Method 1
a novel oil in water structured emulsion which is useful as a substitute for solid or semi-solid fat products
Implementation Method 2
wherein the surfactant is a combination of non-ionic and ionic surfactant in a ratio of at least about 10:1 to 30:1
Implementation Method 3
cooling the emulsion to form a solid comprising surfactant encapsulated oil layers in a continuous aqueous phase
Data Source
AI summary
A product in the form of an oil in water emulsion is provided. The emulsion includes an oil phase which is an admixture of about 30-60% oil by weight, 0.01-15% wax by weight and a surfactant component, a combination of non-ionic and ionic surfactant in a ratio of at least about 10:1 to 30:1; and an aqueous phase comprising about 30-50% by weight of the emulsion. The product is useful as a fat substitute.