High Diglyceride Emulsifier for Trans-Free Shortening
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Solution Overview
Problem
Existing food products, particularly baked goods, require fat-continuous emulsions with specific structural characteristics, but conventional methods using partially hydrogenated vegetable oils introduce trans fatty acids, which are detrimental to cardiovascular health, necessitating a trans-free alternative.
Innovation Solution
Development of a high diglyceride emulsifier composition with elevated diglyceride content, produced through interesterification of triglycerides with glycerol, which structures vegetable oils without introducing trans fatty acids or excessive saturated fats, allowing for the creation of trans-free fat-continuous emulsions with improved functionality and consistency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If partial hydrogenation of vegetable oil is used to structure fat, then solid fat content and plasticity are improved, but trans fatty acids are introduced which are harmful to cardiovascular health
Solution Approach 1:
The invention changes the chemical composition parameters of the emulsifier by increasing diglyceride content to 65-80% (up from conventional 38-45%), which fundamentally alters how the fat structures and crystallizes, enabling solid fat content control without hydrogenation
Solution Approach 2:
The patent utilizes controlled phase transitions of fats through interesterification and fractionation processes to create specific solid-liquid phase distributions that provide desired plasticity and spreadability without requiring trans fatty acids for structural stability
2Adaptability or versatility
If conventional mono- and diglyceride emulsifiers are used, then emulsification and structuring functions are provided, but the diglyceride content is limited to 38-45% which restricts functionality
Solution Approach 1:
The invention directly modifies the diglyceride content parameter from the conventional 38-45% range to an elevated 65-80% range through controlled interesterification and vacuum distillation processes, thereby enhancing emulsifier functionality and versatility
Solution Approach 2:
The patent performs preliminary interesterification and vacuum distillation steps during emulsifier production to pre-establish the elevated diglyceride composition, ensuring optimal functionality is achieved before the emulsifier is used in food product formulation
3Object-generated harmful factors
If vegetable oils are used instead of animal fats, then saturated fat content is reduced and health benefits are improved, but the oils are liquid and lack the required structure and plasticity
Solution Approach 1:
The invention changes the physical state parameters of vegetable oils by incorporating elevated diglyceride emulsifiers that control crystallization and phase behavior, transforming liquid oils into structured shortenings with desired plasticity while maintaining low saturated fat content
Solution Approach 2:
The patent uses high diglyceride emulsifiers as intermediary substances that mediate between liquid vegetable oils and the required solid-liquid structured fat, providing the necessary structuring function without requiring solid fats or hydrogenation
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 high diglyceride emulsifier enables the production of food products with significantly reduced trans fat content, maintaining desired structural characteristics and health benefits, allowing for labeling as 'zero trans fat' products, while offering improved functionality and consistency comparable to or exceeding conventional products.
Implementation Method 1
obtained by the interesterification or glycerolysis of triglycerides with glycerol. When a triglyceride is reacted with glycerol at high temperatures, for example 200-250°C under alkaline catalysis
Implementation Method 2
the diglyceride portion w/w is increased to a level of at least about 65% to about 80%, more preferably from about 70 to at least about 80%, and most preferably about 74%, for example, by vacuum distillation
Data Source
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AI summary
A mono-, di-, and triglyceride emulsifier composition is provided that is obtained by the interesterification or glycerolysis of triglycerides with glycerol. The diglyceride portion w/w is at least about 65% to about 80%, and most preferably from about 70% to about 80% (HiDi). The high diglyceride emulsifier is useful in preparing a trans free shortening from a non-hydrogenated vegetable oil for use in bakery goods, which then have a significantly lower saturated fat content and a substantially higher polyunsaturated level than heretofore available when a conventional mono- and diglyceride emulsifier is used in the goods. A preferred shortening that is predominantly in stable beta prime crystalline form is prepared by mixing on a weight to weight basis from about 10% to about 30%, and preferably about 15% to 20%, of the HiDi composition, with the remainder being non-hydrogenated soybean oil.