The use of citric acid in the chemical industry is expanding.Citric acid C 6 H 8 O 7)) is an acidic substance, preservative, emulsifier, deodorant, secretor and buffer that is widely used in many industries, especially in food, beverage, pharmaceutical, cosmetic. . It was first crystallized from lemon juice and was named by Scheele in Sweden in 1784.Due to its remarkable physical and chemical properties and environmentally benign nature, the use of citric acid in the chemical industry has increased rapidly.It will become a major chemical in emerging bioeconomics with applications beyond its usual use in the food, pharmaceutical and cosmetic industries.
The first significant new use in household detergents and dishwashers (approximately 13% of the global citric acid market) as a co-manufacturer with zeolites is mainly in concentrated liquid detergents.Citric acid is responsible for the hardening of calcium water, Ca 2+ and Mg 2+. Ions, but unlike phosphate builders, do not contribute to the eutrophication of acatate systems. Since 2017, in addition to the phosphate in dishwasher detergents, which was previously banned in the United States and the European Union, has led to an increase in citric acid consumption, which has increased the use of citrate in household cleaners this is a Applications of citric acid.
Citric acid successfully cross-linked many other materials, including ultra-fine protein fibers for medical applications, polyols suitable for making biodegradable films, for example for environmentally friendly packaging, and hydroxyapatite for composite Double ceramics are used for orthopedic tissue.
Citric acid is an excellent and harmless disinfectant against various viruses, including human viruses. For example, citrate is added to neurovirus-like particles, stopping the binding of histo-type antigens, which are involved in binding to host ligands, and preventing the transmission of these viruses, as well as the symptoms in some people. Reduces those who have already been infected with the virus.Neuroviruses, which are easily transmitted through contaminated hands or contaminated food, cause frequent outbreaks in public settings such as hospitals, cruise ships, and schools. A commercial paper towel containing a middle layer impregnated with citric acid (5.51%) and sodium lauryl sulfate (2.02%) removes the virus in the form of droplets in tissue paper after sneezing, coughing, or blowing the nose. . Sodium lauryl sulfate disrupts the lipids of many viruses when moisture hits the middle layer, while citric acid disrupts rhinoviruses that lack lipid coverage but are sensitive to acids. This prevents re-transfer to hands and surfaces.This deadly product can also be used to disinfect surfaces where cold and flu viruses can survive for more than 24 hours.
Citric acid is widely used to clean industrial sites, including radionuclide-contaminated nuclear sites, and heavy metal-contaminated soils due to its chelating properties. For example, the citric fraction not only facilitates the removal of metals in the soil, but also increases soil excretion of hydrophobic organic compounds from the soil. By further increasing the potential for the removal of mixed contaminants from soil, citric acid when combined with rhamnolipid biosurfactants,Provides an unprecedented capacity to improve the soil environment (better than most heat or chemical treatments) through chemical agents that are not only environmentally friendly, but also contribute to the ecological remediation of the soil after remediation.
The use of citric acid to reduce microbiological activity, thereby increasing the stability of concentrates, is used in the beverage industry. Citric acid, along with other ingredients, provides an effective commercial antioxidant that preserves the texture, color, and organoleptic quality of several fruits and keeps them fresh.
– Also used as a chelating agent in agriculture.
– Its solutions are used to clean and remove furnace walls in coal power plants.
– Pre-treatment of the metal surface, secondary recovery of oil and as an antioxidant in the preparation of lob oil.
Citric acid, produced annually by 2 million tons, is obtained through molasses obtained from the fermentation of black mold, the main biotechnology product of the chemical industry and an essential chemical for the emerging bio-economy. The global and intense consumer demand for natural ingredients, ie functional products that are not beneficial and harmful to health and the environment, continues to demand citric acid as an ingredient in beverages, food, medicine and cosmetics. Its low price and abundance make citric acid more widely used in the chemical industry.