Your Professional Preservatives Supplier
Our Perspective:To become an excellent Chinese chemical distributor.
Our Mission:To promote the globalization of Chinese chemicals.
Since 2006, Longfeng has been dedicating itself as an active manufacturer and supplier of chemical products onan international scale. We have a skilled engineering team dedicated to refining every stage, from product development and process improvement to production oversight, ensuring every product delivered meets rigorous quality and performance standards. The price is competitive and the product is quality-assured, which is a good choice for your long-term cooperation.
-
Potassium Sorbate PowderPotassium Sorbate (C6H7KO2) is the potassium salt of sorbic acid. E202 preservative is a white, crystalline powder or granular substance with a slightly bitter taste. The compound is a synthetically
-
Potassium Sorbate PreservativePotassium Sorbate (C6H7KO2) is the potassium salt of sorbic acid. E202 preservative is a white, crystalline powder or granular substance with a slightly bitter taste. The compound is a synthetically
-
Potassium Sorbate GranularPotassium Sorbate (C6H7KO2) is the potassium salt of sorbic acid. E202 preservative is a white, crystalline powder or granular substance with a slightly bitter taste. The compound is a synthetically
-
Sorbic Acid Food AdditiveSorbic Acid can restrain effectively the activity of mould, yeast and aerophile bacteria. Restrain growth and reproduction of the pernicious micro oraganism as pseudomonas, staphylococcus salmonella
-
Preservatives Sorbic AcidSorbic Acid can restrain effectively the activity of mould, yeast and aerophile bacteria. Restrain growth and reproduction of the pernicious micro oraganism as pseudomonas, staphylococcus salmonella
-
Sodium BenzoateSodium benzoate is widely used as a preservative in food processing and preservation. Benzoic acid can play a role in free state in food, so it has a better effect in strong acid food. Benzoic acid
-
Sodium Benzoate PowderSodium benzoate powder is widely used as a preservative in food processing and preservation. Benzoic acid can play a role in free state in food, so it has a better effect in strong acid food.
-
Sodium Benzoate GranularSodium benzoate Granular is widely used as a preservative in food processing and preservation. Benzoic acid can play a role in free state in food, so it has a better effect in strong acid food.
-
Benzoic Acid PowderBenzoic acid , C7H6O2 (or C6H5COOH), is a colorless crystalline solid and a simple aromatic carboxylic acid. The name is derived from gum benzoin, which was for a long time its only known source.
-
Benzoic Acid FlakeBenzoic acid , C7H6O2 (or C6H5COOH), is a colorless crystalline solid and a simple aromatic carboxylic acid. The name is derived from gum benzoin, which was for a long time its only known source.
-
Sodium Acetate AnhydrousIt is white crystalline powder or block, odorless, slight bitter. The relative density is 1.582. Melting point is 324℃. It has strong moisture absorption and highly dissolves in water.
-
Sodium Acetate PreservativeIt is white crystalline powder or block, odorless, slight bitter. The relative density is 1.582. Melting point is 324℃. It has strong moisture absorption and highly dissolves in water.
Why Choose Us
Our Production Capacity: We have a monthly output of 5,000 tons and an annual output of up to 60,000 tons, capable of meeting the supply needs of various products.
Production Markets: Our market has expanded to more than 45 countries and regions, including Chile, Peru, Bolivia, Russia, Argentina, Brazil, Mexico, Spain, Egypt, Colombia, Turkey, Thailand, South Korea, India, Malaysia, Tanzania, Vietnam, Germany, South Africa, Singapore, Jamaica, New Zealand, Mauritius, and Ghana.
Our Services: Get a personalized quote tailored to your specific project needs, with expert answers available instantly. Real-time assistance, no waiting.
Increases food variety
Some food types only grow or thrive in specific seasons. For example, peas cannot survive in hot seasons like the summer. Thus, households cannot access the nutritional value these specific foods offer and might have to wait for the next season to access them.
Increases food supply and prevents waste
Regardless of any food policies and agricultural management techniques, farms completely control the amount of food they produce. Thus, some regions might have food surplus while others experience shortages.
Extends shelf life
Some food processors and producers do not sell directly in their resident region. Others might want to expand their operations to reach consumers far from their production site.
Improves food safety
Food can react with or interact with biological and chemical agents that can reduce their quality or infect the food with dangerous microorganisms. Preservatives can help curate the problem by inhibiting the reproduction of hazardous chemicals and microbes that can endanger human life.
Reduces dietary deficiencies
Some preservatives also increase the nutritional value of foods. Some regions might not generate foods that offer specific nutrients and might need extra additives to compensate for this limitation.
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 |

Sorbic acid can restrain effectively the activity of mould, yeast and aerophile bacteria. Restrain growth and reproduction of the pernicious micro oraganism as pseudomonas, staphylococcus salmonella action to restrain growth is more powerful than killing.
Meanwhile, it can not restrain useful microoraganim growth as anaerobic spore-bearing bacilli, acidophil therefore to lengthen food store period and remain food original flavor. The preservative efficiency of sorbic acid is 5-10 times sodium benzoate.
Preservatives in food: Food has a natural expiration process that is the result of bacteria, fungus, and molds taking over the food. By adding preservatives, whether they be natural, artificial, or a combination of both — it prevents these foods from expiring as fast. Preservatives are also used to help keep the food color, shape, smell, and size — which can make the food item more appealing to the consumer.
Preservatives in medicine and pharmaceuticals: Preservatives are used in medicine and pharmaceuticals to help prevent microbial contamination. This is most commonly found in over-the-counter medicines such as acetaminophen and cough syrup.
Preservatives in cosmetics: In makeup and other personal and hygiene products, preservatives are used to prevent and slow down bacteria growth and product breakdown.
Preservatives in wood: Although it May sound strange, preservatives are often added to wood, and for a good purpose. Doing so prevents the wood from splintering, rotting, and breaking — which is especially important in wooden structures like powerline/telephone poles, fences, and patios.

Production Process of Preservatives
Synthetic preservatives
These are produced through chemical synthesis, where raw materials are reacted to create the desired preservative molecule. Natural preservatives: These are obtained from natural sources like cane sugar, citrus fruits, or through processes like fermentation.
Purification
After synthesis or extraction, all preservatives (both natural and synthetic) undergo purification to remove impurities and ensure they meet food-grade standards before they can be used in food products.
Packing and Shipping of Preservatives
|
Packing |
Pp bag or kraft paper bag |
|
Shipping |
Shipped by road, sea, rail |
FAQ
As one of the leading preservatives manufacturers and suppliers in China, we warmly welcome you to buy high quality preservatives made in China here and get free sample from our factory. Good service and punctual delivery are available.
Benzoic Acid, Benzoic Acid Powder, Sodium Benzoate