Preservatives Manufacturer for Shelf-Life Protection
Longfeng Chemical supplies food-grade preservatives for international food manufacturers, ingredient distributors and professional buyers. Our current product range includes Potassium Sorbate, Sorbic Acid and Sodium Benzoate, with different product forms available for specific purchasing and processing requirements.
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![Potassium Sorbate Powder]()
Potassium Sorbate PowderPotassium Sorbate Powder is a food-grade preservative supplied as a white crystalline powder or granule. -
![Potassium Sorbate Preservative]()
Potassium Sorbate PreservativePotassium Sorbate Preservative is a food-grade potassium salt of sorbic acid, identified as E202 and INS 202. It is supplied in crystalline powder or granular form for yeast and mould control in... -
![Potassium Sorbate Granular]()
Potassium Sorbate GranularPotassium Sorbate Granular is a food-grade potassium sorbate supplied in white to off-white granular form, identified as E202 and INS 202. -
![Sorbic Acid Food Additive]()
Sorbic Acid Food AdditiveSorbic Acid Food Additive is a food-grade preservative identified as Sorbic Acid, E200 and INS 200, with CAS No. 110-44-1. Supplied as a white crystalline powder with 99.0–101.0% assay, it is used... -
![Preservatives Sorbic Acid]()
Preservatives Sorbic AcidPreservatives Sorbic Acid is a food-grade preservative supplied as white crystalline powder with 99.0–101.0% assay. Identified as INS 200 and CAS 110-44-1, it is used primarily for yeast and mold... -
![Sodium Benzoate]()
Sodium BenzoateSodium Benzoate (CAS 532-32-1) is a benzoic acid salt used as an antimicrobial preservative in acidic food and beverage formulations. -
![Sodium Benzoate Powder]()
Sodium Benzoate PowderSodium Benzoate Powder is a white, water-soluble preservative ingredient supplied in powder form, with ≥99.50% assay. -
![Sodium Benzoate Granular]()
Sodium Benzoate GranularSodium Benzoate Granular is a white granular sodium benzoate used as a preservative ingredient in acidic food and beverage formulations.
Choose the right preservative based on target microorganisms, product pH, formulation, processing, and destination-market requirements.
Potassium Sorbate (E202):Potassium salt of sorbic acid. Widely used for mold and yeast control in beverages, sauces, dairy, confectionery, bakery, and fruit preparations. Available in powder and granular forms.
Sorbic Acid (E200):Organic acid preservative. Performance depends on pH. Suitable for cheese, dairy, beverages, bakery, sauces, fruit products, and confectionery. Available in food-grade specifications.
Sodium Benzoate (E211):Sodium salt of benzoic acid. Highly water-soluble, effective in acidic formulations. Commonly used in soft drinks, fruit beverages, juices, sauces, condiments, and pickled products. Available in powder and granular forms.
Specification of Preservatives
|
ITEM |
STANDARD |
|
Appearance |
White crystalline powder |
|
Identification |
Conforms |
|
Heat Stability |
Not change in color after heating for 90 minutes at 105℃ |
|
Odor |
Slight characteristic odor |
|
Purity |
99.0-101.0% |
|
Water |
=<0.5% |
|
Melting Range (℃) |
132-135 |
|
Residue on Ignition |
=<0.2% |
|
Aldehydes (as Formaldehyde) |
0.1% Max |
|
Lead (Pb) |
=<5 mg/kg |
|
Arsenic (As) |
=<2 mg/kg |
|
Mercury (Hg) |
=<1 mg/kg |
|
Heavy Metals (as Pb) |
=<10 mg/kg |
Comparison Table
|
Preservative |
Effective pH Range |
Spectrum |
Solubility / Handling |
|
Sorbic Acid (E200) |
Up to ~6.5 (broader than benzoate) |
Mold, yeast, some bacteria |
Low water solubility; soluble in oils/fats |
|
Potassium Sorbate (E202) |
Up to ~6.5 |
Same active as sorbic acid, more soluble |
Freely water-soluble; easier dosing |
|
Sodium Benzoate (E211) |
Acidic only — best pH < 4.5 |
Yeast, bacteria; weaker vs mold |
Freely water-soluble |
Preservatives for Different Food Applications
Beverages:Sodium Benzoate and Potassium Sorbate are commonly evaluated for soft drinks, fruit beverages, juices, flavored drinks, syrups, and other acidic beverages—subject to regulations and formulation conditions.
Sauces & Condiments:Used in sauces, salad dressings, ketchup, condiments, pickled products, and fruit-based sauces. Selection considers pH, water activity, processing, and desired preservation system.
Bakery Products:Helps control mold in bread, cakes, pastries, bakery fillings, and other baked goods. Selection depends on moisture, storage, packaging, and shelf life.
Dairy Products:Used in certain dairy and dairy-based formulations. Choice depends on product matrix, processing, target microorganisms, and applicable food regulations.
Confectionery:Considered for candies, fruit fillings, soft confectionery, sugar-based products, and other formulated confectionery. Evaluate compatibility, taste, and storage stability.
Fruit & Vegetable Products:Used in fruit preparations, fruit fillings, pickled vegetables, processed fruit products, and sauces/preserves. Selection considers acidity, moisture, processing, and storage conditions.
Choose the Right Preservative for Your Product
There is no single preservative ideal for every formulation. Selection depends on target microorganisms, product pH, processing conditions, and destination-market regulations.
Target Microorganisms
Identify whether your primary concern is mold, yeast, or specific bacterial growth before selecting an ingredient.
Product pH
Preservative performance is closely related to pH. Consider your product's pH during selection and formulation testing.
Solubility
For liquid products, dissolution and distribution matter. For dry or semi-solid products, physical form and dispersion also affect processing.
Processing Conditions
Heating, storage temperature, moisture, and processing time influence preservative performance and should be evaluated.
Regulatory Requirements
The selected preservative must be permitted for the intended food category and use level in the destination market.
Formulation Compatibility
The preservative should work with other ingredients without causing undesirable changes in taste, appearance, texture, or product stability.
Raw Material Inspection:Incoming raw materials are checked against established quality requirements before production.
Controlled Production:Production follows defined process parameters to maintain consistent product characteristics and purity.
Purification & Processing:The product undergoes required processing, purification, drying, and other product-specific steps to achieve specified quality.
Physical Processing:Where applicable, products are further processed through crushing, sieving, or granulation to achieve required particle size and physical form.
Quality Testing:Finished products are tested for purity, moisture, appearance, and other product-specific indicators per applicable specifications.
Packaging & Batch Identification:Qualified products are packed in agreed packaging; batch information is recorded for traceability.
Final Inspection & Shipment:Before shipment, product quantity, packaging condition, and shipping information are verified per order requirements.
Company Strength
Founded in 2006, Qingdao Longfeng Chemical Co., Ltd. specializes in exporting food additives, feed additives, industrial chemicals, agrochemicals, and water treatment chemicals. With headquarters in Qingdao and a Hong Kong office, we serve over 45 countries, including Russia, Germany, Spain, India, Brazil, and South Africa.
Packaging & Logistics
We understand that food ingredient packaging needs to protect the product during storage, handling and international transportation.
Packaging Options
- PP Bags
- Kraft Paper Bags
- Product-specific inner packaging where required
- Customized packaging according to customer and destination requirements
International Transportation
- Sea Freight:Suitable for bulk shipments and regular international orders, particularly for larger quantities.
- Rail Freight:Available for selected international routes where rail transportation is suitable for the destination and shipment requirements.
- Road Transportation:Suitable for regional and cross-border deliveries.
certificate
Food-safety system
ISO 22000 / FSSC 22000
HACCP program
Halal & Kosher certification
Non-GMO statement available
Market documentation
Per-lot COA (assay, heavy metals, As, microbial)
SDS & TDS for each product
REACH compliance for EU imports
Certificate of Origin & full traceability
With abundant experience, we are one of the most professional preservatives manufacturers and suppliers in China. We warmly welcome you to buy bulk premium preservatives at competitive price from our factory. If you have any enquiry about free sample, please feel free to email us.
