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Home ProductsSodium Metabisulfite Food Additive

CAS 7681 57 4 Sodium Metabisulfite Reducing Agent Molecular Formula Na2S2O5

CAS 7681 57 4 Sodium Metabisulfite Reducing Agent Molecular Formula Na2S2O5

    • CAS 7681 57 4 Sodium Metabisulfite Reducing Agent Molecular Formula Na2S2O5
    • CAS 7681 57 4 Sodium Metabisulfite Reducing Agent Molecular Formula Na2S2O5
  • CAS 7681 57 4 Sodium Metabisulfite Reducing Agent Molecular Formula Na2S2O5

    Product Details:

    Place of Origin: Hunan
    Brand Name: Kemsky
    Certification: ISO 9001,sgs
    Model Number: smbs -a4

    Payment & Shipping Terms:

    Minimum Order Quantity: 1 metric ton
    Price: usd 300 per metric ton
    Packaging Details: 25 kgs bag,1000 kgs big bag
    Delivery Time: 5-8 days
    Payment Terms: T/T , L/C
    Supply Ability: 3000 tons per month
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    Detailed Product Description
    Name: Nutrient Retention Agent Sodium Meta Bisulphite Other Name: Sodium Pyrosulphite Nutrient Retention Agent
    Shelf Life: 12 Months/365 Days Grade: Food Grade,food Industry
    Usage: Food Additive Preservative, Antioxidant,antistaling Agent, Packing: 25 Kgs Plastic Woven Bag/1000 Kgs Jumbo Bag

     Sodium Metabisulfite/Sodium Meta Bisulphite

     

    sodium metabisulfite

    sodium metabisulfite manufacturers

    97%--96% sodium metabisulfite industry grade

    Molecular Formula: NaNO2

    Molecule Weight: 69.0
    CAS NO.:7632-00-0
    Appearance:White or light yellow Fine Crystal

     

     

     

    ITEM

    Quality Index
    Standard Our result

    Na2S2O5

    (calculated by dry base) %

    ≥96.5 97.2

    Fe

    (calculated by dry base) %

    ≤0.003 0.0009

    Water insoluble matter

    (calculated by dry base) %

    ≤0.05 0.002

    Have metal

    (calculated by dry base) %

    ≤0.005 0.004

    ARSENIC

    (calculated by dry base) %

    ≤0.0001 0.0001
    PH(5% water soluble) 4.72
    Package and Trade mark By woven plastic bag out , and white plastic bag inner
    Result First quality

     

    Sodium Metabisulfite Function


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

     

    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

     

     

     

    CAS 7681 57 4 Sodium Metabisulfite Reducing Agent Molecular Formula Na2S2O5

    Contact Details
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    Contact Person: Ms.xie

    Tel: +8613975090964

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