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Coated Ascorbic Acid

Coated Ascorbic Acid

Coated Ascorbic Acid (Encapsulated Vitamin C) is a stabilized form of L-Ascorbic Acid produced using micro-encapsulation technology. A protective coating helps shield vitamin C from moisture, oxygen, heat, and other environmental factors, improving its stability, flowability, and processing performance while ensuring efficient nutrient release after ingestion.
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Description

What Is Coated Ascorbic Acid

 

Coated Ascorbic Acid (Encapsulated Vitamin C) is a stabilized form of L-Ascorbic Acid produced using micro-encapsulation technology. A protective coating helps shield vitamin C from moisture, oxygen, heat, and other environmental factors, improving its stability, flowability, and processing performance while ensuring efficient nutrient release after ingestion.

 

Technical Specifications

 

Item

Specification

Product Name

Coated Ascorbic Acid / Encapsulated Vitamin C

CAS No.

50-81-7

Molecular Formula

C6​H8​O6​

Appearance

White to off-white free-flowing granules or powder

Assay (Active Vitamin C)

97%, 93%, 90% (Custom gradients available)

Coating Materials

Ethyl Cellulose (for pharma/supplements), Vegetable Oil / Stearic Acid (for animal nutrition)

Particle Size

20–80 mesh (Optimized for tableting and blending)

Shelf Life

24 Months

Compliance & Certificates

ISO9001, ISO22000, HACCP, GMP, FAMI-QS, Kosher, Halal

Packaging

25 kg fiber drums or multi-layer kraft paper cartons with PE inner liners

 

Applications

 

Dietary Supplements: Ideal for direct compression tablets, hard gelatin capsules, chewables, and effervescent formulations where processing pressure and moisture defense are critical.


Functional Foods & Solid Beverages: Extends the potency and color stability of instant drink mixes, meal replacement powders, cereal bars, and fortified functional foods.


Animal Nutrition & Aquaculture Feed: Survives commercial shrimp and fish feed extrusion processes. Protects the vitamin C from being destroyed by copper or iron ions present in high-mineral livestock premixes.


Pet Nutrition: Guarantees stable vitamin retention in dry kibble, treats, and wet food production lines during high-heat retorting or extrusion.

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Global Quality Assurance & Compliance Documentation

 

We provide a complete documentation package with every shipment to ensure seamless regulatory clearance in your local market:

01/

Certificate of Analysis (COA) per batch

02/

Material Safety Data Sheet (MSDS) & Technical Data Sheet (TDS)

03/

Factory Audit Reports & Allergen Statements

04/

Certified Compliance: ISO, HACCP, GMP, FAMI-QS, Halal, and Kosher

 

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Why Partner with Guangzhou ZIO Chemical

 

25+ Years of Industry Expertise: A reliable manufacturing and supply chain partner specialized in global food ingredients and nutritional additives.


Global Footprint: Seamlessly exporting to over 120 countries and regions with deep knowledge of international customs regulations.


Flexible OEM & Customization: Ability to customize coating percentages (e.g., 93% vs 97% assay), coating types, mesh sizes, and private-label packaging to suit your technical requirements.

 

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FAQ

 

Q: What coating materials do you use?

A: We offer two options: Ethyl Cellulose for dietary supplements and pharmaceuticals, and hydrogenated vegetable lipids/stearic acid for animal feed with high heat resistance.

Q: What is the retention rate after pelleting or extrusion?

A: Our coated Vitamin C retains 85–92% potency after pelleting (≤90°C) or extrusion (≤130°C), while regular Vitamin C typically retains only 30–50%.

Q: Does the coating affect bioavailability?

A: No. The coating protects Vitamin C during processing and dissolves in the digestive tract, ensuring 100% bioavailability.

Q: Is it suitable for direct compression tableting?

A: Yes. The Ethyl Cellulose coating improves compressibility and helps prevent capping and lamination during high-speed tableting.

Q: What is your MOQ?

A: Our standard MOQ is 1,000 kg, with 200–500 kg trial orders available for first-time customers.

Q: Do you provide free samples?

A: Yes. We offer 100–500 g free samples. Customers pay the courier cost, which is credited on the first bulk order.

Q: How do you prevent caking during ocean shipping?

A: We use 25 kg fiber drums or multi-wall cartons with sealed PE liners and container desiccants to control moisture.

Q: Can you customize assay or mesh size?

A: Yes. We offer 90%, 93%, 97%, and customized assay levels, as well as tailored mesh sizes.

Q: Do you have FAMI-QS certification?

A: Yes. Our feed-grade products are FAMI-QS certified and also comply with ISO, HACCP, GMP, Kosher, and Halal standards.

Q: What are your lead time and payment terms?

A: Lead time is 7–10 days for standard products and 14–21 days for customized orders. We accept T/T and L/C at sight, with flexible terms for long-term partners.

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