Biosurfactants can be used as food additives in food industry

2022-08-12 15:20:27

Biosurfactants can be used as food additives in food industry. Lecithin and its derivatives, fatty lipids containing glycerol, sorbitan, ethylene glycol, derivatives of glycerol monoester, and recently synthesized oligopeptides are widely used as emulsifiers in the food industry. Emulsifiers not only play a role in dispersion, but also play a great role in the formation of appropriate viscosity and texture of products.

Surface active substances are also used in barley and meat products. They can affect the rheological properties of flour and emulsify partially broken adipose tissue; A new biological emulsifier produced by Candida utilis has potential application value in salad seasoning. Busscher et al found that the surfactant produced by Streptococcus thermophilus in milk can prevent the proliferation of Streptococcus thermophilus producing odor, so it can be used to control odor in the heat exchange plate of pasteurizer; Sucrose ester can be used in frozen drinks, seven grams, candy, cakes, bread, cakes and so on.

Biosurfactants meet the requirements of functional food and green food additives, and can be used in functional food. Today and even in the future, when human beings advocate health first, they will become a widely used food additive.

It is a new technology to use biosurfactants to repair soil polluted by hydrocarbons and crude oil. For example, Rhamnus produced by Pseudomonas aeruginosa has removed a large amount of oil from the Alaskan gravel layer. Van Dyke et al found that rhamnolipid produced by Pseudomonas aeruginosa can increase the recovery rate of hydrocarbons by 25% ~ 70% and 40% ~ 80% respectively from the polluted sand and mud. Similarly, treating sand with biosurfactant produced by Pseudomonas aeruginosa can make the recovery of aliphatic hydrocarbons and aromatic hydrocarbons reach 56% and 73%, respectively.

Biosurfactants can also emulsify the mixture of hydrocarbons and water, which can significantly increase the degradation of hydrocarbons and have potential application value in oil spill management. Microorganisms that can degrade hydrocarbons have been isolated from water: an emulsifier produced by Pseudomonas aeruginosa sb30 can quickly disperse oil into droplets, which can be useful in beach decontamination; Dave et al recently found that the oil leaked from the petrochemical industry can be used for bioremediation of soil pollution by microorganisms that can degrade hydrocarbons; Deziel et al reported that Pseudomonas aeruginosa 19sj can produce biosurfactants by using polycyclic aromatic hydrocarbons.