Lipid Composition Stabilization via Nitrogen Inerting and Aromatic Masking
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Solution Overview
Problem
Current lipid compositions rich in alpha-linolenic acid (ω3) and its derivative docosahexaenoic acid (DHA) often suffer from unbalanced fatty acid ratios and rapid organoleptic deterioration due to autoxidation, making it challenging to create a stable and nutritionally balanced edible oil that maintains quality over time.
Innovation Solution
A lipid composition comprising at least 97% plant-origin lipids, with 58-77% refined rapeseed oil, 22-41% refined oil with low alpha-linolenic acid, 0.7-2.9% marine/microalgal DHA, and 0.1-8% unrefined or virgin aromatic oils, formulated to maintain stability and balance ω6/ω3 and ω9/ω6 ratios, and protected from light to prevent oxidation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If lipid compositions are enriched with alpha-linolenic acid and DHA to improve nutritional value, then the nutritional quality is enhanced, but the organoleptic stability deteriorates due to rapid autoxidation
Solution Approach 1:
The patent uses nitrogen gas to replace air in the headspace of packaging containers, creating an inert atmosphere that prevents oxidation of polyunsaturated fatty acids. This inert environment eliminates oxygen contact with DHA and alpha-linolenic acid, thereby maintaining organoleptic stability while preserving nutritional quality.
Solution Approach 2:
The patent employs aromatic vegetable oils (such as hazelnut, almond, or walnut oils) as intermediary substances that mask the characteristic fishy odor and taste of DHA-rich components. These aromatic oils act as mediators between the DHA source and the consumer, providing sensory acceptance while maintaining the nutritional benefits of high DHA content.
2Reliability
If the proportion of polyunsaturated fatty acids is increased to enhance nutritional benefits, then the nutritional value improves, but the susceptibility to oxidation increases
Solution Approach 1:
By replacing air with nitrogen in packaging containers, the patent creates an oxygen-free environment that protects polyunsaturated fatty acids from oxidation. This inert atmosphere prevents the harmful oxidative reactions that would otherwise degrade the high proportion of polyunsaturated fats.
Solution Approach 2:
The patent modifies the oxygen concentration parameter in the packaging headspace by replacing air (21% oxygen) with nitrogen (0% oxygen). This parameter change fundamentally alters the oxidation kinetics, preventing degradation of polyunsaturated fatty acids while maintaining their nutritional value.
3Reliability
If DHA-rich marine or microalgal oils are used to increase DHA content, then the DHA intake is enhanced, but the organoleptic quality deteriorates due to fishy taste and odor
Solution Approach 1:
The patent uses aromatic vegetable oils as intermediary substances that mask the fishy sensory attributes of DHA-rich marine or microalgal oils. These aromatic components act as mediators, providing a sensory bridge that allows consumers to accept DHA supplementation without the unpleasant fishy taste and odor.
Solution Approach 2:
The patent transforms the harmful fishy odor and taste of DHA-rich oils into a benefit by using aromatic vegetable oils to mask these negative sensory attributes. The aromatic components convert the unpleasant sensory experience into an acceptable or even pleasant one, while the DHA nutritional benefit remains intact.
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 composition achieves a balanced fatty acid ratio, enhances DHA intake, and maintains organoleptic quality for at least 6 months, providing a stable and nutritionally improved edible oil suitable for daily consumption, particularly for individuals needing DHA supplementation.
Implementation Method 1
rapid organoleptic deterioration due to autoxidation
Data Source
AI summary
The invention relates to a lipidic composition containing more than 97 % of vegetal lipids and including from 58 to 77 wt % of rapeseed oil, from 22 to 41 wt % of at least one vegetal oil containing at least 4 wt % of alpha-linoleic acid and containing about 72 to 92 wt % of oleic acid, from 0.7 to 2.9 wt % marine-origin lipids and/or microalgale containing 25 to 45 % of docosahexanoic acid (DHA) and less than 9 % of eicosapentaenoic acid (EPA), from 0.1 to 8 % of a first lipidic, aromatic and sapid substance and from 0 to 0.1 % of a second aromatic and sapid substance obtained from spices, herbs, fruits and aromatic plants.