Fat Blend Composition with High Stearic Acid Hardstock
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Solution Overview
Problem
Current fat spreads contain high levels of saturated fatty acids, particularly those with 12 to 16 carbon atoms, which increase LDL-based cholesterol levels, while stearic acid, which has a neutral effect, is underrepresented, making it difficult to create a spread that effectively lowers cholesterol levels while maintaining structure, texture, and taste.
Innovation Solution
A fat blend composition with 20% or less saturated fatty acids, where palmitic acid is 38% or less and stearic acid is 20% or more, made with a hardstock containing at least 5% stearic acid, using fully hydrogenated oils and interesterified fats to achieve a low saturated fatty acid content without compromising texture and taste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If classical hardstock is prepared with structuring hard fats such as palm oil and its fractions, coconut oil, palm kernel or mixtures thereof, then the hardstock contains high amounts of palmitic acid (generally more than 60%) and rather low amount of stearic acid (generally less than 5%), but this leads to fat spreads containing high levels of saturated fatty acids which increase LDL-based cholesterol levels
Solution Approach 1:
The invention changes the fatty acid composition parameters of the hardstock by using fully hydrogenated oils (which provide high stearic acid content) instead of traditional palm oil-based hardstocks (which provide high palmitic acid content). This parameter change in the raw material composition directly addresses the contradiction by reducing palmitic acid while increasing stearic acid, thereby lowering LDL-cholesterol impact while maintaining structure-forming properties.
Solution Approach 2:
The invention creates a composite hardstock material by combining fully hydrogenated oils with interesterified fats in specific proportions (70-95% fully hydrogenated oil and 5-30% interesterified fat). This composite approach allows optimization of both the fatty acid profile (low palmitic, high stearic) and the functional properties (crystallization behavior, texture) simultaneously, resolving the contradiction between cholesterol-lowering composition and acceptable product structure.
2Quantity of substance
If fully hydrogenated oils are used for preparing hardstock, then the hardstock contains high amount of tristearin which has very bad crystallisation properties, but this results in extremely slow melting characteristics of the final fat spread
Solution Approach 1:
The invention uses interesterified fats as an intermediary component (5-30% of the hardstock) that modifies the crystallization behavior of the fully hydrogenated oil base. The interesterified fat acts as a mediator that improves the melting characteristics and crystallization properties of the high-stearic hardstock, preventing extremely slow melting while maintaining the high stearic acid content needed for cholesterol-lowering effects.
Solution Approach 2:
The invention changes the triglyceride structure parameters through interesterification, which rearranges fatty acids among glycerol backbones. This parameter change in molecular structure modifies the crystallization and melting properties of the hardstock, allowing high stearic acid content to be maintained without the extremely slow melting characteristics that would result from high tristearin content alone.
3Quantity of substance
If partially hydrogenated fats such as partially hydrogenated soybean oil are used for preparing hardstock, then the hardstock contains 10% to 40% of stearic acid with very good crystallization properties and storage stability, but this also contains increased levels of transfat known to increase cholesterol level
Solution Approach 1:
The invention extracts and eliminates trans fats from the hardstock composition by using fully hydrogenated oils instead of partially hydrogenated fats. Full hydrogenation converts all unsaturated bonds to saturated bonds, removing the source of trans fat formation. This extraction of the harmful trans fat component allows maintaining high stearic acid content (15-40%) with good crystallization properties without the cholesterol-increasing effect of trans fats.
Solution Approach 2:
The invention converts the potential harm of hydrogenation (which can create trans fats) into a benefit by using full hydrogenation instead of partial hydrogenation. Full hydrogenation eliminates trans fat formation while maximizing stearic acid content, turning what could be a harmful process into a beneficial one for producing cholesterol-lowering hardstock with excellent functional properties.
4Object-affected harmful factors
If the fat spread contains low saturated fatty acids (20% or less) with high stearic acid (20% or more), then the cholesterol level is lowered, but it becomes difficult to maintain acceptable structure, texture, and taste
Solution Approach 1:
The invention creates a composite hardstock system combining fully hydrogenated oils (70-95%) with interesterified fats (5-30%). This composite material provides the high stearic acid content (15-40%) needed for cholesterol-lowering effects while the interesterified fat component contributes to acceptable crystallization behavior, texture, and spreadability. The synergistic combination maintains product stability despite low total saturated fat content.
Solution Approach 2:
The invention changes the molecular structure parameters of the fat blend through interesterification, which redistributes fatty acids across glycerol backbones. This parameter change in triglyceride architecture modifies the crystallization properties and texture characteristics, allowing the fat spread to maintain acceptable structure and spreadability even with low saturated fatty acid content (20% or less) and high stearic acid predominance.
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 fat blend composition effectively lowers cholesterol levels by reducing saturated fatty acid content, particularly palmitic and myristic acids, while maintaining the structure and taste of traditional fat spreads, providing a stronger cholesterol-lowering effect compared to commercial spreads.
Implementation Method 1
using fully hydrogenated oils and interesterified fats to achieve a low saturated fatty acid content without compromising texture and taste
Implementation Method 2
using fully hydrogenated oils and interesterified fats to achieve a low saturated fatty acid content without compromising texture and taste
Implementation Method 3
The obtained emulsion mixture is then crystallised and worked out to get the desired texture. Crystallization conditions mainly depend on the fat phase composition.
Data Source
AI summary
Anew fat blend composition allowing the preparation of a fat spread composition lowering the cholesterol level in human beings, said fat blend comprising 20% or less of saturated fatty acids among which: -38% or less are palmitic acid (C16:0); and -20% or more of stearic acid (C18:0); said fat blend being made at 5% to 100% of a hardstock containing from 5% to 100% of one or further hard fat and at least 5% of stearic acid. A new hardstock composition comprising: -from 20% to 100 % of one or further hard fat chosen as being a fully hydrogenated oil,a fractionated oil or fat, and/or an interesterified oil or fat containing more than 15% of stearic acid; and -from 0% to 80% of one or further natural or fractionated oil or fat chosen among 1 canola oil, sunflower oil, low erucic acid rapeseed oil, high oleic sunflower oil, soybean oil, corn oil, peanut oil, olive oil, high oleic canola oil, low linolenic soybean oil, high stearic sunflower oil, shea butter, cocoa butter and coconut fat, said natural or fractionated oil or fat being mixed and/or interesterified with the hard fat; said hardstock being free of palm oil and its fractions.