Ascorbic Acid Food Grade 99% (Vitamin C, E300)

Description

Ascorbic Acid Food Grade 99% (Vitamin C, E300)

We are a bulk ascorbic acid supplier of food grade 99% vitamin C (E300). Ascorbic Acid Food Grade 99% (Vitamin C, E300) (CAS 50-81-7, molecular formula C6H8O6) is a food-grade ingredient supplied to a published specification for food, beverage and nutrition manufacture, with traceability from batch through to certificate. China Chemicals supplies it at 99.0 – 100.5% in pack sizes from 1 kg through to 1000 kg Bulk Bag, so laboratory trial quantities and full production volumes can be sourced from the same specification.

It is also traded as E300, Vitamin C, L-Ascorbic Acid. Every consignment ships with a batch-specific Certificate of Analysis and the current Safety Data Sheet, and material is stored and picked under stock rotation so you receive product well inside its shelf life.

Typical applications

• Antioxidant and vitamin fortification in beverages
• Dough improver and flour treatment agent in baking
• Colour retention in cured meat and fresh-cut produce
• Nutraceutical and supplement manufacture
• Oxygen scavenger in beverage and juice packaging

Technical specification

Chemical name	Ascorbic Acid Food Grade 99% (Vitamin C, E300)
Synonyms	E300, Vitamin C, L-Ascorbic Acid
CAS number	50-81-7
Molecular formula	C6H8O6
Appearance	White to slightly yellow crystalline powder
Assay (dry basis)	99.0 – 100.5%
Loss on drying	0.4% max
Specific rotation	+20.5° to +21.5°
Heavy metals as Pb	5 ppm max
Sulphated ash	0.1% max
Standard	USP / BP / FCC / E300

Values above are typical and are confirmed on the Certificate of Analysis issued against each batch. Tighter specifications can be quoted where a process requires them.

Packaging and supply

Available in 1 kg, 5 kg, 25 kg Bag, 1000 kg Bulk Bag. Bulk, road tanker and export drum quantities are quoted on request, including FOB and CIF terms for international shipment. Pricing shown is per pack in USD, exclusive of freight and any applicable duties.

Handling and safety

Transport classification: Not regulated · Not classified as hazardous. Store in the original closed container in a cool, well-ventilated area away from incompatible materials, and handle using appropriate personal protective equipment. Read the Safety Data Sheet in full before use — it is issued with every order and is available on request before purchase.

Supply to industry only. Products are sold for legitimate industrial, laboratory and manufacturing use. We may request end-use details and business registration before releasing an order.

What Is Ascorbic Acid Food Grade?

Ascorbic acid food grade is the chemical name for vitamin C, a six-carbon compound structurally related to glucose and found naturally in citrus fruit and many vegetables. It is an essential human nutrient: the body cannot make or store it, so it must come from the diet. Commercially, food-grade ascorbic acid is produced at high purity as a white crystalline powder, supplied in particle size grades suited to the intended application.

Two Different Jobs, One Molecule

The mechanism genuinely differs by use. As a preservative and antioxidant, ascorbic acid food grade readily donates electrons, neutralizing the oxidative reactions that make cut fruit brown, cured meat discolour and beverages lose freshness. In bread dough the chemistry flips. During mixing, ascorbic acid is converted to dehydroascorbic acid, which then acts as an oxidizing agent on the gluten network, forming extra cross-links that strengthen it. The practical result is greater loaf volume, a finer and more tender crumb, and faster, more reliable rising.

Applications

For preservation, ascorbic acid food grade prevents browning and oxidative spoilage in fruit, vegetables and juices, typically applied in a water solution, and helps maintain colour in cured and cooked meat at around 200 mg/kg, often alongside Sodium Erythorbate. In bakery it is used as a dough conditioner at around 50 mg/kg of dough, in systems that also use mould inhibitors such as Calcium Propionate. It is also added to foods and beverages to raise their vitamin C content.

Handling & Storage

Ascorbic acid is an essential dietary nutrient with an excellent safety profile at food-use levels. It is sensitive to light and moisture, so store ascorbic acid food grade in a sealed container away from direct light and humidity to preserve potency.

Frequently Asked Questions

How can ascorbic acid food grade be both an antioxidant and a dough oxidizer?
The chemistry depends on the application. In fruit, meat and beverages it directly neutralizes oxidative reactions. In bread dough it is converted to dehydroascorbic acid during mixing, which then oxidizes and strengthens the gluten network.

What does ascorbic acid food grade do in bread baking?
It strengthens gluten structure, giving greater loaf volume, a finer and more tender crumb, and faster, more reliable rising, typically at around 50 mg/kg of dough.

Why is it used on cut fruit like apples and pears?
It prevents the oxidative browning that happens when cut flesh is exposed to air, typically applied as a water solution.

Is ascorbic acid food grade the same as vitamin C?
Yes. Ascorbic acid is the chemical name for vitamin C, an essential nutrient the body cannot produce or store.

How should it be stored?
In a sealed container, away from direct light and moisture, which both degrade potency over time.

What packaging and order quantities are available?
We supply ascorbic acid food grade from trial quantities through to full bulk orders. Contact us with your required volume for current pricing and lead time.

Your Trusted Ascorbic Acid Supplier

As an established ascorbic acid supplier, we serve manufacturers and processors with consistent quality and reliable delivery. The right ascorbic acid supplier gives you steady specification and documentation batch after batch, and as your ascorbic acid supplier we back every order with a Certificate of Analysis.

For further independent reference, see the Wikipedia entry on ascorbic acid, and browse our full Food Additives range.