Rhamnolipid biosurfactant

Rhamnolipids are naturally occurring glycolipids produced commercially by the Pseudomonas aeruginosa species of bacteria. P. aeruginosa produces both mono-rhamnolipids and di-rhamnolipids. Many strains of P. aeruginosa can produce rhamnolipids both aerobically and in some cases by anaerobic fermentation. Rhamnolipids function as a natural surfactant, emulsifier, fungicide, and antibiotic.

In pure form, rhamnolipids are a white powder when desiccated. Generally rhamnolipids are supplied and used in an aqueous solution. The solution may range from clear to milky white or tan in color, depending on concentration and purification. When used as a surfactant, only low concentrations are necessary.

As a natural “green”, non-carcinogenic product, rhamnolipids are just now beginning to be used to replace petroleum-based chemicals in cosmetics, soaps, shampoos, detergents, pharmaceuticals, agricultural sprays, etc. as those currently used petrochemicals are being phased out or banned.

Application.

1,  Agriculture

Research has showed that application of rhamnolipids aid in the absorption of nutrients and fertilizers through the roots. The surfactant and wetting properties of rhamnolipids aid in the application of foliar nutrient sprays.

2,Cosmetics

The use of rhamnolipids in cosmetics will become widespread as consumers look for natural “green” products. The rhamnolipids will emulsify the other ingredients, forming them into a uniform mixture and spreading them evenly. For skin products, rhamnolipids will make minimize the appearance of wrinkles, in some cases make small wrinkles seem to disappear. The rhamnolipids will make the skin feel more moist and smooth.

The cosmetic industry uses a large amount of surfactants, including them in almost every product produced. The wide range of products containing surfactants includes antidandruff products, skin creams, hair color, shampoos and conditioners, toothpaste, mascara, nail polish, lipstick, antiperspirants, baby products, shaving creams, moisturizers, soaps, lubricators, eye shadow, wipes, sun creams, deodorants, bubble baths, shaving foams, insect repellents, tanning agents, and fragrances.

There is an ever-increasing focus on product safety, “green”, and natural in purchasing decisions for these products as consumers become aware of the harmful effects of the harsh chemicals traditionally used.

3,Enhanced Oil Recovery

The shipment, storage, and processing of many produces, including oil and heavy petroleum products leave a large amount of oil sludge or coagulate in the shipping containers, tanks, and reaction vessels that is difficult to clean out. This reduces the amount of product delivered as well as reducing the capacity of the ship or container for the next load. Rhamnolipid’s surfactant and emulsifying properties are used to remove and recover the sludge and coagulates from the containers in an environmental manner.

4,other applications : Food products,Pesticides, Petroleum recovery Pharmaceutical and Water treatment etc.