Applications Role of biosurfactants
Environmental
Soil remediation and flushing

Bioremediation



Emulsification through adherence to hydrocarbons, dispersion, foaming agent, detergent, soil flushing.

Emulsification of hydrocarbons, lowering of interfacial tension, metal sequestration.
Agriculture

Biocontrol
Phosphate fertilizers
Spray application


Facilitation of biocontrol mechanisms of microbes such as parasitism, antibiosis, competition, induced systemic resistance and hypo-virulence.
Prevent caking during storage
Wetting, dispersing, suspending of powered pesticides and emulsification of pesticide solutions, promote wetting, spreading and penetration of toxicant
Petroleum production /products

Enhanced oil recovery


De-emulsification
Drilling fluids


Improving oil drainage into well bore, stimulating release of oil entrapped by capillaries, wetting of solid surfaces, lowering of interfacial tension, dissolving of oil.
De-emulsification of oil emulsions, oil solubilization viscosity reduction, wetting agent. Emulsify oil, disperse solids, and modify rheological properties of drilling fluids for oil and gas wells.
Biological
Microbiological


Pharmaceuticals and therapeutics

Physiological behavior such as cell mobility, cell communication, nutrient accession, cell-cell competition, plant and animal pathogenesis.

Antibacterial, antifungal, antiviral agents, adhesive agents, immuno modulatory molecules, vaccines, gene therapy
Cosmetic

Health and beauty products


Emulsifiers, foaming agents, solubilizers, wetting agents, cleansers, antimicrobial agents, mediators of enzyme action.
Food and beverages

Emulsification and de-emulsification
Functional ingredient




Food processing plants
Fruits and vegetables
Bakery and ice cream
Crystallization of sugar

Emulsifier, solubilizer, demulsifier, suspension, wetting, foaming, defoaming, thickener, lubricating agent. Interaction with lipids, proteins and carbohydrates, protecting agent.
For cleaning sanitizing


Improve removal of pesticides and in wax coating
Solubilize flavor oils, control consistency, retard staling
Improve washing, reduce processing time
Prevent spattering due to super heat and water
Elastomers / plastics

Emulsion polymerization
Foamed polymers
Latex adhesive
Plastic articles
Plastic coating/laminating


Solubilization, emulsification of monomers
Introduction of air, control of cell size
Promote wetting, improve bond strength
Antistatic agents
Wetting agents
Industrial cleaning

Janitorial supplies
De-scaling
Soft goods


Detergents and sanitizers
Wetting agents and corrosion inhibitors in acid cleaning of boiler tubes and heat exchangers
Detergents for laundry and dry cleaning
Leather

Skins
Tanning
Hides
Dyeing


Detergent and emulsifier in degreasing
Promote wetting and penetration
Emulsifiers in fat liquoring
Promote wetting and penetration
Table 2: Some major applications of biosurfactants.