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Na2S2O5 97% Purity Sodium Metabisulphite Antioxidant For Seafood 180 Days Shelf Life

Categories Sodium Metabisulfite Food Additive
Brand Name: Kemsky
Model Number: smbs -a2
Certification: ISO 9001,sgs
Place of Origin: Hunan
MOQ: 1 metric ton
Price: usd 300 per metric ton
Payment Terms: T/T , L/C
Supply Ability: 3000 tons per month
Delivery Time: 5-8 days
Packaging Details: 25 kgs bag,1000 kgs big bag
name: Sodium Meta Bisulphite antioxidant
other name: for seafood sodium pyrosulphite
color: white or light gray powder
shelf life: 180 days
usage: antioxidant
packing: 25 kgs plastic woven bag/1000 kgs jumbo bag
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Na2S2O5 97% Purity Sodium Metabisulphite Antioxidant For Seafood 180 Days Shelf Life

Sodium Metabisulfite/Sodium Meta Bisulphite


Application

In the chemical and pharmaceutical industry, sodium metabisulfite is mainly used as reduction agent. Furthermore, it is ideal for the bleaching of vegetable fibers and textile, for the production of solutions, which are used in the developing of photos and films as well as for the treatment of tanning agents in dyeing of textiles. ChoiceChem offers different sodium metabisulfite grades, all meeting highest quality standards.

Transportation Information


DOT Classification:Not a DOT controlled material
U.N.Not applicable.
Packing Group:Not applicable.

Storage & Handing


Precautions for safe handling

Use only in well-ventilated areas. Avoid dust formation.

Protection against fire and explosion:

The substance/product is non-combustible. No special precautions necessary.

Conditions for safe storage, including any incompatibilities

Segregate from acids and acid forming substances. Segregate from oxidants.

Do not store with: Sodium nitrate, sodium nitrite, sodium sulfide

Further information on storage conditions:

Keep container tightly closed and dry; store in a cool

place. Keep container in a well-ventilated place.

Basic Information

Sodium Metabisulfite Food Grade Specifications

ItemSpecificationTesting Result
Purity (AS Na2S2O5 )97.0% Min97.6%
Sulfur Dioxide (SO2)65.0% Min65.8%
Arsenic (As)0.0002% Max0.00005%
Heavy Metals (As Pb)0.0005% Max0.0003%
Selenium (Se)0.0005% Max0.00006%
Iron (Fe)0.002% Max0.001%
Water Insoluble0.02% Max0.014%
Ph Value4.0~4.84.5

SODIUM METABISULFITE

1.GradeFood grade
2.Purity97%
3.Molecular formulaNa2S2O5
5. CAS No7681-57-4
6. HS CODE28321000
7. EINECS No231-673-0

► Molecular Formula: Na2S2O5

► CAS No.: 7681-57-4

► Other name: sodium metabisulphite, sodium pyrosulfite

► Physical appearance: white or slightly yellowish crystalline powder

Sodium Metabisulfite Food Grade

Application of sodium metabisulfite in food industry

Sodium Metabisulfite is widely used in food industry. Besides bleaching effect, Sodium Metabisulfite also owns the following functions:

1) Sodium Metabisulfite in food has anti-browning effects. Enzymatic browning often occurs in fruit, potato food. Sodium Metabisulfite is a kind of reducing agent, has a strong inhibitory effect on the polyphenol oxidase activity. 0.0001% of sulfur dioxide can reduce 20% of the enzyme activity, 0.001% of sulfur dioxide can completely inhibit the enzyme activity and can prevent enzymatic browning; In addition, can consume oxygen in food organization and has deoxidation effect. Furthermore, sulfite and glucose can have addition action, prevent glucose and amino acids in food ammonia reaction sugar ammonia reaction, so as to own the function of anti-browning.

2) Sodium Metabisulfite in food has antiseptic effect. Sodium Metabisulfite can play the role of acidic preservative, the undissociated sulfurous acid is considered it can inhibit yeasts, moulds and bacteria. The inhibition of undissociated sulfurous acid for colon bacillus is 1000 times stronger than Hydrogen sulfite, 100 to 500 times stronger than beer yeast, 100 times stronger than leaf mold. Sulfur dioxide in the acid has the most powerful anti microorganism effects.

3) Sodium Metabisulfite in food has loosen machine effect, Sodium Metabisulfite can be used as the constituent of loosen machine.

4) Sodium Metabisulfite in food has oxidation resistance effect. Sodium Metabisulfite has distinctive resistance effect. Sulfurous acid is strong reducing agent, it can consume the oxygen in organization of fruits and vegetables, inhibit the activity of inhibit the activity of oxidizing enzyme, it is effective to prevent oxidation and breaking of vitamin C in fruits and vegetables.

The mechanism Sodium Metabisulfite effects: Decolorizers can be divided into two types by its function: oxidation type bleaching agent & reducing type bleaching agent. Sodium Metabisulfite belongs to reducing type bleaching agent.

Sodium Metabisulfite effects decoloring function by pigment reducing action, so as to achieve the purpose of bleaching. The colors of most organics are produced by chromophore its molecules contains. All of chromophore contains unsaturated bood, reduction bleaching agents release hydrogen atoms, it can make unsaturated bood in chromophore become single bond, so organics loses color. The browning of some foods is caused by existing of ferric ion, to add reduction bleaching agents can make ferric ion become two valence iron ion, prevent browning of food.


Sodium Metabisulfite effects fading function by addition reaction of sulfite. So as to achieve the purpose of bleaching. Sodium Metabisulfite can contact glycosides and carbohydrates to make addition reaction to bleach and fade. This action is reversible, sulphurous acid can be removed by heating or acid treatment, to make anthocyanin regenerate and resume the original red.

Sodium Metabisulfite Products

Sodium Metabisulfite Function


►Preservatives
►Antioxidants
►Bulking Agent
►Nutrient Retention Agent
►Flour dough improver
►Bleaching agent
►Reducing agent
►Coagulant
►Antichlor
►Mordant
►Developer


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