TIANJIANG / CAROTENOID DELIVERY TECHNOLOGY
Pigment Microencapsulation with OSA Modified Starch
Carotenoid pigments such as beta-carotene, lutein, lycopene and astaxanthin can be difficult to disperse and sensitive to oxygen, light, heat and storage conditions. Tianjiang OSA modified starch helps manufacturers build stable oil-in-water pigment emulsions before homogenization and spray drying. The resulting pigment powder can provide improved handling, color protection, controlled active loading and cold-water dispersion for food, beverage and nutrition systems.
01 / DESIGN THE DELIVERY SYSTEM
Pigment Microencapsulation for Carotenoid Manufacturers
Commercial pigment microencapsulation must control more than color intensity. R&D teams need to manage pigment concentration, crystal or oil-phase behavior, emulsion stability, feed viscosity, spray-drying performance, surface oil, powder flow, redispersion and active-pigment retention.
Stable Pigment Emulsion
Maintain uniform dispersion of the pigment-containing oil phase before atomization.
Color Protection
Reduce exposure of oxidation-sensitive carotenoids to oxygen, light and environmental stress.
Controlled Active Loading
Balance pigment concentration against wall protection, viscosity and finished-powder performance.
Cold-Water Dispersion
Develop dispersible carotenoid powder for beverages, premixes and nutritional applications.
Spray-Drying Efficiency
Maintain commercially useful feed solids and controlled viscosity.
Storage Stability
Protect pigment potency and visual color through the intended shelf life.
02 / FOUR COMMERCIAL PRODUCT DIRECTIONS
Four Pigment Microencapsulation Development Platforms
The Tianjiang platform begins with the supplied beta-carotene internal formulation and expands into 10% beta-carotene CWD, yellow carotenoid and red carotenoid powder systems.
Beta-Carotene 1% CWD Direction
Built directly from Tianjiang's supplied 30% beta-carotene concentrate, sunflower oil, OSA modified starch, maltodextrin, vitamin E and spray-drying process.
Beta-Carotene 10% CWD Direction
A higher-loading beta-carotene platform built around the same OSA-starch microencapsulation logic for concentrated cold-water-dispersible powder.
Lutein / Yellow Carotenoid Platform
A customizable oil-carried yellow carotenoid platform for food, beverage and nutrition formulations requiring dry, dispersible pigment.
Lycopene / Astaxanthin Platform
A customizable red-carotenoid wall system for oil-dispersed actives requiring stronger oxidative protection and controlled powder loading.
TJ-PIG-01 is derived directly from Tianjiang's supplied beta-carotene microcapsule formulation range. TJ-PIG-02 through TJ-PIG-04 are independently developed commercial-scale starting points informed by Tianjiang's internal process, public commercial carotenoid formats and published OSA-starch microencapsulation research. They are not reproductions of another supplier's proprietary formulation.
03 / PIGMENT POWDER FORMULATION CALCULATOR
Pigment Microencapsulation Batch Calculator
Enter the actual potency of your pigment concentrate and calculate the active pigment, wall materials, feed solids, core-to-wall ratio, spray-dried powder recovery and theoretical finished-powder concentration.
Carotenoid Spray-Drying Formula Calculator
A. Pigment Feed Emulsion Formula
| Component | % of Feed | Batch Mass | Primary Function |
|---|---|---|---|
| Total Feed Emulsion | 100.00 | — | Feed before homogenization and spray drying |
B. Active Pigment & Powder Mass Balance
| Output | Calculation Basis | Estimated Value | Technical Meaning |
|---|
TJ-PIG-01 ready.
The calculated finished-powder pigment concentration is theoretical. It assumes proportional recovery of the pigment-containing solids. Actual pigment assay, isomer profile, encapsulation efficiency, surface oil, color strength and storage retention must be confirmed analytically.
04 / FUNCTIONAL WALL MATERIAL
Why OSA Modified Starch for Pigment Microencapsulation?
Many carotenoid pigments are strongly lipophilic and have poor direct dispersibility in aqueous systems. Starch sodium octenyl succinate introduces hydrophobic functionality into a hydrophilic starch backbone, allowing an appropriate grade to help stabilize pigment-containing oil droplets while also contributing film-forming carbohydrate solids during spray drying.
Oil-Water Emulsification
Helps stabilize the pigment-containing oil phase in aqueous feed.Wall Formation
Contributes to a protective carbohydrate matrix during rapid water removal.Low-Viscosity Solids
Suitable grades can support commercial feed solids without excessive viscosity.Oxidative Protection
Helps reduce direct exposure of carotenoid core material to environmental oxygen.Color Retention
Supports the formulation strategy used to maintain pigment intensity through storage.Cold-Water Dispersion
Can support development of dispersible pigment powders for downstream use.
05 / FROM PIGMENT CONCENTRATE TO POWDER
Pigment Microencapsulation Manufacturing Process
Tianjiang's supplied process uses heated wall-material preparation, oil-phase preparation, high-shear emulsification, high-pressure homogenization and spray drying. Commercial parameters should be optimized around pigment stability, feed viscosity, particle size and the actual dryer.
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Verify Pigment Concentrate
Confirm pigment identity, active concentration, carrier oil and storage condition.
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Prepare Process Water
Calculate water from the targeted feed-solids level.
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Hydrate OSA Starch
Disperse Tianjiang starch sodium octenyl succinate uniformly.
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Add Maltodextrin
Build the secondary wall phase and adjust total solids.
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Condition the Wall Phase
The supplied Tianjiang process uses a 50–80°C wall-material preparation range.
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Prepare Pigment Oil Phase
Combine pigment concentrate, carrier oil and validated antioxidant.
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Start High Shear
Establish controlled shear before introducing the pigment-containing oil phase.
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Add Oil Phase Gradually
Avoid localized pigment or oil overload during pre-emulsification.
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High-Pressure Homogenize
Optimize pressure and passes for emulsion size and stability.
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Check Feed Emulsion
Measure viscosity, droplet distribution and phase stability.
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Spray Dry
Optimize atomization, feed rate and inlet/outlet conditions against pigment retention.
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Cool & Finish Powder
Cool quickly, add validated anti-caking agent, sieve and barrier-pack.
06 / APPLICATION LAB & QUALITY CONTROL
Pigment Microencapsulation Performance Testing
The powder should be evaluated from feed emulsion through drying, redispersion and shelf life. Color appearance alone is not enough to confirm successful encapsulation.
Emulsion Stability
Measure creaming, oil separation and pigment settling during feed holding.
Droplet Size
Track emulsion droplet-size distribution before spray drying.
Feed Viscosity
Confirm practical pumping and atomization behavior.
Active Pigment Assay
Measure actual beta-carotene or target carotenoid concentration.
Surface Oil
Quantify exposed or weakly encapsulated oil at the particle surface.
Encapsulation Efficiency
Calculate actual core retention using validated analytical methods.
Color Strength
Monitor hue, color intensity and batch-to-batch consistency.
Oxidative Stability
Evaluate pigment degradation during accelerated and real-time storage.
Cold-Water Dispersion
Evaluate dispersion rate, floating, sedimentation and ring formation.
Powder Moisture
Control residual moisture for storage stability and powder handling.
Flowability
Measure caking, bridging and handling performance.
Shelf-Life Retention
Track active concentration and visual color through target shelf life.
07 / DOWNSTREAM APPLICATIONS
Applications for Microencapsulated Pigment Powder
The finished powder format should be designed around its actual processing environment, dispersion medium, pH, temperature and regulatory use.
Powdered Beverages
Cold-water-dispersible yellow-to-orange color systems for beverage powders.
Ready-to-Drink Beverages
Dispersible carotenoid systems for beverage formulation trials.
Nutrition Premixes
Controlled-concentration pigment and provitamin systems for dry blending.
Confectionery & Gummies
Dry carotenoid delivery for color or nutrition applications.
Dairy & Plant-Based Foods
Yellow, orange or red carotenoid shades in compatible formulations.
Functional Foods
Microencapsulated carotenoid systems where active protection and powder handling matter.
The regulatory status of beta-carotene, lutein, lycopene, astaxanthin and other carotenoids as colors, nutrients or additives varies by market and intended application. Customers should verify local regulatory requirements before commercialization.
08 / DIAGNOSE THE FAILURE
Pigment Microencapsulation Troubleshooting
Keep pigment concentrate, feed solids, homogenization history, dryer conditions and analytical method constant when comparing OSA starch systems.
| Observation | Likely Factors | Controlled Next Trial |
|---|---|---|
| Pigment oil separates before drying | Incomplete wall hydration, weak emulsion, coarse droplets or excessive oil loading. | Screen Tianjiang OSA starch at controlled core-to-wall ratio. |
| Feed viscosity is too high | Excess wall solids or unsuitable OSA / maltodextrin balance. | Adjust wall composition before reducing total feed solids. |
| Powder has high surface oil | Weak emulsion, coarse droplets or insufficient wall coverage. | Improve emulsification and homogenization before increasing drying temperature. |
| Beta-carotene assay is low | Oxidation, thermal degradation, feed losses or analytical variation. | Measure active pigment before and after each process stage. |
| Color fades during storage | Oxygen, light, humidity, surface oil or insufficient antioxidant protection. | Run controlled oxidative-stability trials with defined packaging. |
| Powder floats in water | Poor wetting, particle morphology or excessive surface oil. | Evaluate wall composition, surface oil and powder finishing. |
| Powder cakes | High moisture, humidity exposure or insufficient powder finishing. | Review final moisture, water activity, packaging and anti-caking system. |
| Color varies between batches | Pigment-concentrate variation, emulsion drift or inconsistent spray drying. | Set QC limits for concentrate potency, droplet size and finished-powder assay. |
09 / SELECT THE WALL SYSTEM
How to Select OSA Modified Starch for Pigment Microencapsulation
The optimum Tianjiang grade depends on pigment chemistry, concentrate potency, carrier oil, target final assay, feed solids, homogenizer, spray dryer and required dispersion behavior.
Beta-Carotene CWD Grade
For beta-carotene cold-water-dispersible powder systems.
High-Loading Grade
For systems targeting higher active pigment on finished-powder solids.
Low-Viscosity Grade
For higher feed solids and more efficient spray-dryer operation.
Oxidation-Protection System
For highly sensitive carotenoids requiring stronger barrier performance.
OSA + Maltodextrin System
For balancing emulsification, feed solids, powder handling and cost.
Custom Carotenoid System
For lutein, lycopene, astaxanthin or other oil-carried pigment concentrates.
10 / TECHNICAL QUESTIONS
Pigment Microencapsulation FAQs
Technical guidance for pigment manufacturers, carotenoid producers, food-color companies, spray-drying plants, R&D teams and ingredient buyers.
Why Is OSA Modified Starch Used for Pigment Microencapsulation?
OSA modified starch has both hydrophilic and hydrophobic functionality, allowing suitable grades to help stabilize pigment-containing oil droplets and participate in wall formation during spray drying.
Can Tianjiang OSA Starch Be Used for Beta-Carotene Powder?
Yes. Tianjiang's internal formulation specifically uses starch sodium octenyl succinate as a wall material for a beta-carotene microcapsule powder system.
What Is Cold-Water-Dispersible Beta-Carotene?
It is a dry beta-carotene delivery format designed to disperse into aqueous systems more effectively than untreated lipophilic beta-carotene crystals or oil suspensions.
Why Is Antioxidant Added to the Pigment Oil Phase?
Carotenoids can be sensitive to oxidation. An appropriate antioxidant system can be evaluated as part of the complete core and packaging strategy.
Does More OSA Starch Always Improve Pigment Stability?
No. More wall material reduces active loading and can alter feed solids, viscosity and powder economics. The core-to-wall ratio should be optimized experimentally.
Can the Calculator Predict Finished Beta-Carotene Concentration?
The calculator provides a theoretical mass-balance value from concentrate potency and formula composition. Actual beta-carotene concentration must be measured after processing.
What Should Be Tested After Spray Drying?
Key tests include active pigment assay, surface oil, encapsulation efficiency, powder moisture, color strength, cold-water dispersion, flowability and storage retention.
What Information Should I Send Tianjiang?
Provide the pigment type, concentrate potency, carrier oil, target finished-powder assay, feed solids, existing wall materials, homogenizer, spray dryer and final application.
11 / TALK TO TIANJIANG
Develop Your Next Microencapsulated Pigment Powder
Send Tianjiang your pigment concentrate, active potency, carrier-oil system, target finished-powder assay and spray-drying conditions. Our application team can help screen an OSA modified starch for emulsion stability, active loading, color protection, spray-drying performance and cold-water dispersion.
