Citric Acid Coated Food Preservation Solution

Aprofood has chosen chitosan as the film matrix to develop your citric acid-based film-coated preservative concentrate stock solution, which is easy to use, safe, and healthy, and its solution is easily degradable and non-polluting to the environment.

Overview of Film Coating for Preservation

Film coating preservation is an essential auxiliary technology for fruit and vegetable storage based on the principle of micro-air conditioning. The film-coating agent is the only alkaline polysaccharide among natural polysaccharides, widely found in the shells of shrimps and crabs and the cell walls of higher plants. It has good inhibitory effect on E. coli, Pseudomonas fluorescens, Staphylococcus aureus, Bacillus subtilis and so on. It can also inhibit the physiological changes of fresh food and increase the surface luster of fruits and vegetables.

Citric acid is an edible acid, that mainly inhibits bacteria, protects color, improves flavor, and promotes sucrose conversion. It also has a chelating effect, which can remove some harmful metals and prevent oxidation caused by enzyme catalysis and metal catalysis, thus preventing fruits and vegetables from discoloring and changing flavor.

Our Solutions

Aprofood selects chitosan as the film substrate because it is a natural polymer with well-known antioxidant and anti-microbial properties. We applied the citric acid-based coating film to the surface of fruits and vegetables by dipping, brushing, and spraying, and its air-drying resulted in the formation of a colorless, transparent, and semi-permeable film.

• The chitosan film matrix we provide is compounded with a food-grade raw material moisture retention agent to form a physical barrier that effectively prevents microorganisms from invading fruits and vegetables. It can also inhibit the color change of fruits and vegetables, reduce the occurrence of decay and moisture loss, and extend the shelf life of fruits and vegetables.
• We can develop citric acid-based film preservative concentrates for you, which are easy to use. The raw materials we develop for you are food-grade additives, safe and healthy. The solution is easily degradable and non-polluting to the environment. It will not bring secondary pollution to fruits and vegetables when used.

Applicable Range

Dates, apples, grapes, tomatoes, pears, cucumbers, rape, bananas, etc. can be used.

Applicable Scenes

• Planting base
• Fruit and vegetable wholesale market
• Fruit and vegetable transport process
• Supermarkets, fruit and vegetable retailing
• Green plant foliage cleaning and brightening

Our Advantages

Green and safe

Effective preservation of fruits and vegetables at room temperature or low temperature

Reduces bruising and prevents mold after application

Increases the surface gloss of fruits and vegetables

Please feel free to contact us for more information on the development of citric acid-based film coating preservative solutions.