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Home Food Additives & Nutritional Supplements

Ascorbic Acid Coated | CAS 50-81-7

Ascorbic Acid Coated | CAS 50-81-7

  • Ascorbic Acid Coated (coated vitamin C) is produced by uniformly coating high-purity L-ascorbic acid with a food-grade protective layer, yielding white or semi-white, free-flowing granules. The coating acts as a protective barrier against oxygen, moisture, heat and light, significantly improving the stability of vitamin C during processing and storage while preserving its nutritional activity.
  • Order(MOQ) :

    500kg
  • Product Origin :

    China
  • Color :

    White or semi-white
  • Shipping Port :

    Shanghai, China
  • Lead Time :

    2-3 weeks
  • Weight :

    25kg
  • Cas No. :

    50-81-7
  • Molecular Formula :

    C6H8O6
  • Appearance :

    White or semi-white granules
  • Assay :

    97.6%
  • Application :

    Food Additives & Nutritional Supplements
 
  •  

Coated ascorbic acid is a specially processed form of vitamin C designed to overcome the inherent instability of regular ascorbic acid. High-purity L-ascorbic acid is coated with a food-grade protective layer through a precision coating process, forming uniform, free-flowing granules.

The protective coating isolates the active vitamin from environmental factors such as oxygen, moisture, heat and light, which would otherwise accelerate oxidative degradation. As a result, coated ascorbic acid retains higher potency during granulation, tableting, premixing and long-term storage, and enables a more controlled release of vitamin C in finished products. The product complies with the food-grade enterprise standard Q/320282NJH005-2019.

Application Fields

  • Nutritional Supplements: vitamin C fortification in tablets, capsules, granules, sachets and effervescent products, especially in formulations requiring improved stability.
  • Food Premixes & Fortified Foods: nutrient fortification of dry food premixes, cereals, dairy and bakery products where resistance to heat and moisture is required.
  • Animal Nutrition: vitamin C supplementation in feed premixes and pelleted feeds, where the coating protects the vitamin during feed processing.

Technical Specifications

Item

Specification

Test Result

Characteristics

White or semi-white granules

Pass

Assay

≥ 97.0%

97.6%

Heavy metals (as Pb)

≤ 0.001%

< 0.001%

Arsenic (As)

≤ 0.0002%

< 0.0002%

Lead (Pb)

≤ 0.0002%

< 0.0002%

Loss on drying

≤ 0.4%

0.1%

Residue on ignition

≤ 0.1%

0.03%

Standard

Q/320282NJH005-2019

Conforms

 

 

FAQ :

Q1: What are the advantages of coated ascorbic acid compared with regular ascorbic acid?
A: Regular ascorbic acid is sensitive to heat, moisture, oxygen and light, which cause oxidation and potency loss. The protective coating of our coated ascorbic acid acts as a physical barrier that slows these degradation reactions, providing better stability during processing (granulation, tableting, premixing) and storage, as well as a more controlled release profile in finished products.
 
Q2: What are the MOQ and delivery details?
A: The MOQ is 500 kgs. Please contact our sales team for current pricing, lead time and shipping terms based on your destination and order quantity.
 
Q3: Is this product suitable for feed premixes?
A: Yes. Coated ascorbic acid is widely used in animal feed premixes and pelleted feeds because the coating protects vitamin C from heat and moisture during feed processing. Please confirm the required specification and target application with our sales team.
 
Q4: How should coated ascorbic acid be stored?
A: Keep in tightly sealed, moisture-proof containers in a cool, dry place, away from direct sunlight and high temperature. Under recommended conditions the shelf life is 24 months.

 

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