Polyketide Pigment Composition for UV-Stable Food Coloring
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Solution Overview
Problem
Existing Polyketide pigments, such as azaphilones, suffer from poor stability against light, particularly UV irradiation, limiting their use in applications where color retention is crucial.
Innovation Solution
Combining Polyketide pigments with carotenoids like lycopene, rosmarinic acid, chlorogenic acid, rutin glucoside, and/or tocopherol enhances light stability by reducing UV absorption, forming a complex that maintains color hue under light exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If Polyketide pigments are used as natural food colorants, then health safety and natural labeling are improved, but light stability deteriorates
Solution Approach 1:
The patent combines Polyketide pigments with stabilizing agents (carotenoids, polyphenols, cyclodextrins, or proteins) to create a composite coloring composition. This composite approach allows the natural Polyketide pigment to maintain its health safety benefits while the added stabilizers protect against light degradation, resolving the contradiction between naturalness and light stability.
Solution Approach 2:
The patent introduces stabilizing agents as intermediary substances that mediate between the Polyketide pigment and light exposure. These intermediaries (carotenoids, polyphenols, cyclodextrins, or proteins) absorb or scatter UV light and prevent direct photodamage to the pigment molecules, thereby protecting the pigment's color stability while preserving the natural character of the formulation.
2Stability of the object's composition
If Monascus pigment is used as a natural red coloring agent, then pH stability and heat stability are improved, but photostability deteriorates
Solution Approach 1:
The patent creates a composite system combining Monascus pigment with specific stabilizing agents (carotenoids like lycopene, polyphenols, cyclodextrins, or proteins) that provide photoprotection. This composite formulation maintains the pigment's inherent pH and heat stability while adding UV resistance, allowing the pigment to withstand both thermal and photolytic stress.
Solution Approach 2:
The patent applies preliminary protective measures by incorporating stabilizing agents that preemptively counteract UV damage before it occurs. These agents (carotenoids, polyphenols, cyclodextrins, or proteins) are pre-positioned in the formulation to absorb UV radiation and prevent the formation of reactive oxygen species that would otherwise degrade the pigment structure.
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 stabilization method results in Polyketide pigments that retain vibrant color and stability in beverages and confectionary, offering clean labeling and good nutritional value without off-notes.
Implementation Method 1
Combining Polyketide pigments with carotenoids like lycopene, rosmarinic acid, chlorogenic acid, rutin glucoside, and/or tocopherol enhances light stability by reducing UV absorption
Data Source
AI summary
The present invention provides a food colouring composition, in particular the invention provides a composition or colouring composition comprising at least one Polyketide pigment (i) and one or more of the following compounds (ii) a carotenoid (such as lycopene, bixin and/or norbixin), rosmarinic acid, a chlorogenic acid, rutin glucoside, (gamma) cyclodextrin and/or a tocopherol.