Product Introduction
Coated Ascorbic Acid Powder is a micro‑encapsulated vitamin C raw material engineered for harsh manufacturing and long‑term shelf preservation. High‑purity L‑ascorbic acid crystals are uniformly wrapped with food‑safe fatty acid ester coating layer via advanced micro‑encapsulation techniques.
The hydrophobic shell builds a physical barrier shielding vitamin C particles from oxygen, ambient moisture, high processing heat and trace metal ions that trigger oxidation reactions. Unlike regular uncoated ascorbic acid which easily absorbs moisture and turns yellow, this stabilized grade keeps its active potency intact throughout compression, extrusion and thermal processing workflows.
When exposed to neutral‑weak alkaline surroundings or oil‑based formulation matrices, the outer fatty‑ester shell gradually disintegrates, releasing bio‑active vitamin C in a gentle, sustained‑release pattern. It retains full antioxidant capacity and collagen‑boosting performance, while lowering gastric irritation risks for oral supplement formulas. This multi‑purpose raw material fits food, nutraceutical supplement, cosmetic and animal feed production chains.
Application
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Food & Functional Food Manufacturing
Applied for solid beverage blends, instant fruit powder, breakfast cereals, baked fillings and preserved fruit goods. Acts as natural antioxidant to mitigate enzymatic browning of fruit‑containing recipes, stabilize product color appearance and extend shelf‑life. Follow local food‑additive maximum dosage regulation; for oral food use only, not for injection preparation.
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Dietary Supplement Raw Ingredient
Perfect input material for direct‑compress vitamin C tablets, chewable pills, hard‑shell capsules and effervescent powder mixes. Excellent powder flowability minimizes tableting defects such as capping, sticking and surface speckles. Retains vitamin C activity during tablet pressing and long‑term warehouse storage, suitable for daily immune‑support supplement formulations.
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Cosmetic & Personal Care Raw Material
External‑use skincare antioxidant component for brightening and anti‑aging formulations. Slow‑released active vitamin C promotes collagen generation, evens uneven skin tone and neutralizes free radicals. Incorporated into facial creams, lotions, serums and facial masks. Strictly for topical application; avoid direct eye‑area contact.
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Animal Feed Premix Additive
Added into livestock, poultry and aquaculture feed formulas to ease animal stress responses and sustain normal growth performance as well as immune defense. Intended exclusively for animal nutrition, prohibited for human consumption.
Technical Specification
Each batch of coated ascorbic acid powder is accompanied with official COA test report; all indicators meet international pharmacopoeia and food additive standards:
| Item | Standard Limit | Test Result |
|---|---|---|
| Assay (dried basis) | 99.0–100.0% | 99.9% |
| Loss on Drying | ≤0.4% | 0.03% |
| Residue on Ignition | ≤0.1% | 0.03% |
| Specific Optical Rotation | +20.5° ~ +21.5° | +20.96° |
| pH (2% aqueous solution) | 2.4–2.8 | 2.6 |
| Heavy Metals (total) | ≤3 ppm | ≤3 ppm |
| Arsenic (As) | ≤1 ppm | <1 ppm |
| Lead (Pb) | ≤3 ppm | <3 ppm |
| Cadmium (Cd) | ≤1 ppm | ≤1 ppm |
| Iron (Fe) | ≤2 ppm | ≤2 ppm |
| Copper (Cu) | ≤5 ppm | ≤5 ppm |
| Oxalic Acid | ≤0.2% | <0.2% |
| Melting Point | 186–196 °C | Complies |
| Appearance | White to light yellow crystalline powder | Complies |
| Particle Size | Customizable (typical 40–100 mesh) | Complies |
Why Choose Us
- Tailored Micro‑Encapsulation Technology
Our in‑house fatty‑ester coating process allows adjustable shell thickness to match diverse formulation scenarios, whether for tablet pressing, cosmetic blending or food‑grade mixing. Delivers better anti‑oxidation stability compared with generic market coated‑VC variants.
- End‑to‑end In‑house Quality Control
Complete on‑site analytical laboratory covers raw‑material incoming inspection through finished‑goods release. Heavy‑metal and impurity thresholds are controlled far below international regulatory limits, helping you avoid finished‑product compliance failures.
- Comprehensive Global Compliance Credentials
Full set of audit‑ready certifications including ISO9001, FSSC22000, Kosher, Halal and Non‑GMO documentation. Supports import customs clearance for EU, North America and Southeast Asian markets.
- Large‑scale Production & Global Supply Network
Large‑volume factory production capacity plus overseas warehouses located across North America, Europe and Southeast Asia. Secure punctual bulk shipment for worldwide distributors and manufacturers.
- Formulation‑oriented Custom Support
Flexible customization options covering particle mesh size, coating proportion, active vitamin C loading and bulk packaging specifications. Sample testing service is available prior to mass order placement.
OEM Service
We deliver flexible OEM & ODM solutions for coated ascorbic acid powder to satisfy distinct production requirements:
- Custom micro‑encapsulation parameters: adjust coating percentage and particle granularity according to your formulation demands for tablet, food or cosmetic end‑products.
- Flexible bulk packaging options: 1 kg inner bag / 25 kg fiber drum; support custom private‑label outer‑packing for bulk intermediate raw‑material.
- Batch‑specific document customization: generate matched COA, MSDS, heavy‑metal test statement and compliance certificates for your market registration.
- Pilot‑batch trial production: support small pilot lots for formula validation before scaling‑up to large‑volume commercial orders.
- Technical formulation consultation: our application team offers technical guidance for integrating coated ascorbic acid into your existing production workflow.
Frequently Asked Questions About Coated Ascorbic Acid Powder
Q1: What makes fatty‑ester coated vitamin C different from enteric‑coated vitamin C?
A: Our food‑grade fatty‑ester shell breaks down upon contact with oil‑phase matrix or neutral‑weak‑alkaline environments, rather than pH‑triggered enteric dissolution. It suits multi‑sector applications including food, supplements and cosmetic raw materials.
Q2: Can this coated ascorbic acid be mixed with other vitamin powder blends?
A: Yes. Thanks to its free‑flow granular property, it mixes homogeneously with most vitamin and mineral powder premixes. We recommend minimizing long‑term exposure to high‑humidity surroundings after opening the package.
Q3: What maximum processing temperature can this coated vitamin C withstand?
A: It tolerates short‑time processing temperature up to 120℃. Extended continuous high‑temperature exposure should be avoided to preserve optimal active retention rate.
Q4: Is your coated ascorbic acid Non‑GMO and allergen‑free?
A: Yes. The product is certified Non‑GMO, free from common food allergens, no irradiation treatment, without artificial preservatives or synthetic colorants.
Q5: Are samples available for lab formulation testing?
A: We provide small‑quantity trial samples for formulation evaluation. Customers only cover sample freight cost. Please contact our sales team to arrange sample dispatch.
Q6: What risks may occur if I store opened coated‑VC powder improperly?
A: Once opened, moisture and oxygen will gradually penetrate the coating shell, triggering activity loss and powder caking. Reseal tightly after use and store under cool, dry conditions.
Q7: Does this coated ascorbic acid dissolve fully in pure cold‑water beverage systems?
A: The fatty‑ester coating renders it water‑insoluble. It is not ideal for clear transparent drink formulas; it performs best for solid‑powder products, tableting and oil‑containing matrices.
Q8: What documents can you provide for import customs clearance?
A: We supply COA, MSDS, heavy‑metal test statement, anti‑doping certificate, Kosher & Halal, ISO and FSSC22000 certificates upon buyer request.
Delivery and Shipping Service
Storage: Store in a dry, cool, and well-ventilated place.
Packaging: 1 kg/bag, 25 kg/drum
Delivery Time: 7 days after order placement
1.Express Delivery
3-5 days for shipments under 100 kg
Door-to-door service
2.Ocean Freight
Over 300 kg: Approximately 30 days. Port-to-port service requires a professional customs clearance agent.
3.Air Freight
100kg-1000kg, 5-7 days
Airport-to-airport service, requires a professional customs clearance agent
Send inquiry or contact us to get free sample, and learn more details about it.
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