Curcumin Nanoparticle Core-Wall Structure for Photostability
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Solution Overview
Problem
Curcumin's poor water solubility and instability under natural light limit its practical application, especially in liquid food production, due to degradation of its pharmacological and coloring properties.
Innovation Solution
A curcumin nanoparticle is developed using a core material of curcumin and a wall material comprising gum arabic and zein, with specific weight ratios, prepared through a method involving dissolution, centrifugation, rotary evaporation, and freeze drying to enhance stability and solubility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If curcumin is used as a natural pigment and functional ingredient, then it provides strong coloring property and pharmacological activities, but it has poor water solubility and is prone to degradation under natural light
Solution Approach 1:
The patent applies this principle by forming a protective wall around the curcumin core using gum arabic and zein materials. This wall acts as a barrier that protects the curcumin core from degradation under natural light while maintaining its coloring and pharmacological properties. The wall material encapsulates the curcumin, preventing direct exposure to harmful environmental factors.
Solution Approach 2:
The patent creates a composite nanoparticle structure combining curcumin (core material) with gum arabic and zein (wall materials). This composite structure leverages the protective properties of the wall materials to enhance the stability of curcumin while maintaining its functional benefits. The composite nanoparticle resolves the contradiction by integrating multiple materials with complementary properties.
2Adaptability or versatility
If curcumin is applied in liquid food production, then it provides functional benefits, but its poor water solubility limits practical application
Solution Approach 1:
The patent applies segmentation by dividing the curcumin into nanoparticle-sized units with a core-wall structure. This segmentation increases the surface area to volume ratio and improves water solubility compared to bulk curcumin. The nanoparticle form allows curcumin to be dispersed in liquid food systems while maintaining its functional properties.
Solution Approach 2:
The wall material forms a protective shell around the curcumin core, creating a water-soluble complex. This shell enables the hydrophobic curcumin to be dispersed in aqueous environments like liquid food, resolving the solubility issue while preserving the core's functional benefits.
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 curcumin nanoparticle exhibits improved photostability and antioxidant properties, making it suitable for use in functional drinks, which can delay senescence and show anti-aging and antioxidant effects by enhancing superoxide dismutase activity and reducing malondialdehyde levels.
Implementation Method 1
dissolving the zein with 85% ethanol followed by magnetic stirring for 1 h
Implementation Method 2
centrifugation to remove insoluble impurities
Implementation Method 3
dissolving gum arabic with a 0.3 g/L zinc sulfate solution at 60° C. under stirring
Implementation Method 4
adding the curcumin stock solution to the aqueous gum arabic stock solution in a trickle manner followed by stirring for 30 min to produce a curcumin nanoparticle dispersion
Implementation Method 5
concentrating the curcumin nanoparticle dispersion obtained in step (3) by rotary evaporation
Implementation Method 6
subjecting the concentrated curcumin nanoparticle dispersion to freeze drying to produce the curcumin nanoparticle
Data Source
AI summary
Disclosed is a curcumin nanoparticle, including curcumin as core material and a wall material, where a weight ratio of the curcumin to the wall material is (5.5-7.5):100, and the wall material includes gum arabic and zein in a weight ratio of (1-5):5. The disclosure further provides a method of making the curcumin nanoparticle and a curcumin beverage containing the curcumin nanoparticle.