1. Product Overview
Sodium Erythorbate, also known as Sodium Isoascorbate, is a high-efficiency, water-soluble food antioxidant with CAS number 6381-77-7 and European food additive code E316. It is widely approved by FDA, JECFA, FCC, Halal, Kosher and ISO22000 food safety standards, serving as a safe and stable color fixative and preservative for the global food processing industry.
As a stereoisomer of vitamin C, Sodium Erythorbate features excellent antioxidant performance with low nutritional activity. It effectively inhibits food oxidation, enzymatic browning, lipid rancidity and off-flavor generation, helping manufacturers extend product shelf life and maintain original color and flavor without harmful residues.
2. Basic Product Information
Product Name: Sodium Erythorbate / Sodium Isoascorbate
CAS No.: 6381-77-7
E Code: E316
EINECS No.: 228-973-9
Molecular Formula: C6H7NaO6·H2O
Molecular Weight: 216.12
HS Code: 2932290090
3. Physical & Chemical Properties
Sodium Erythorbate is a white or slightly off-white crystalline powder, odorless with a slight salty taste. It is freely soluble in water and slightly soluble in ethanol. The product is stable in dry air, while its aqueous solution is sensitive to high temperature, strong light and metal ions.
The 2% water solution pH ranges from 5.5 to 8.0, with stable optical rotation and high purity. It conforms completely to international food-grade specifications and ensures stable performance in various food formulas.
4. Key Functions & Advantages
Powerful Antioxidant & Color Retention It suppresses oxidative browning and color fading in fruits, vegetables, beverages and seafood, keeping food bright and fresh for a longer time.
Meat Curing & Safety Improvement In meat and sausage products, it accelerates color fixing, maintains bright red meat color, and greatly reduces nitrosamine formation, improving food safety and product appearance.
Prevent Rancidity & Off-Flavor Effectively delays lipid oxidation in seafood, instant noodles and baked goods, avoiding rancidity, fishy odor and bad taste during storage.
High Safety & Wide Compatibility No ADI limitation set by JECFA. Safe for long-term food addition and compatible with most food ingredients such as citric acid, vitamin C and preservatives.
5. Main Applications
Meat Processing: Ham, sausage, bacon, luncheon meat, beef jerky and all cured meat products
Seafood Products: Frozen fish, shrimp, surimi and aquatic finished products to prevent darkening and odor deterioration
Beverages & Drinks: Fruit juice, wine, beer, carbonated drinks and functional beverages for anti-browning and clarity maintenance
Canned Food & Preserves: Canned fruits, jams, pickles and preserved fruits
Staple Food & Bakery: Instant noodles, bread, cakes and frozen dough products
6. Quality Standard (FCC / JECFA)
Purity (Dry Basis): 98.0% – 100.5%
Loss on Drying: ≤ 0.25%
Lead (Pb): ≤ 5 ppm
Arsenic (As): ≤ 3 ppm
Heavy Metals: ≤ 10 ppm
Solution Clarity: Clear and transparent
Qualified by Oxalate Test
7. Packaging & Storage
Packaging: 25kg paper-plastic composite bag or fiber drum with inner PE liner. Custom packaging is available.
Storage: Store in cool, dry and dark warehouse, keep sealed and away from oxidants and metal materials.
Shelf Life: 24 months under proper storage conditions.
8. Why Choose Our Sodium Erythorbate
We are professional manufacturer and supplier of food grade Sodium Erythorbate E316. With complete production lines, strict quality control and full certification system, we provide stable high-purity products, competitive factory price and reliable after-sales service.
All batches are supplied with official COA, MSDS and full customs clearance documents. We support global bulk supply, fast delivery and technical formula guidance for food manufacturers and distributors worldwide.
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