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C. Elizabeth Rani et al.
1 Introduction
Workers of welding industries, tanneries, factories manufacturing chromate
containing paints are exposed to hexavalent chromium that increases the risk of
developing serious adverse health effects was reported by Karanth et al. (1999).
Heavy metals are considered as major type of environmental pollutant. Similarly,
Dhanya et al. (2005) reported that Thirupur district of Tamil Nadu was contaminated
with heavy metals and the experimental studies revealed that contamination was due
to the release of effluent from textile industries.
Some industrial effluent may also contains toxic chemical compounds which will
affect the entire aquatic system. Those compounds may aggregate in waste water,
river, lakes, etc. Synthetic surfactants have applications in the processing of organic
compounds, enhanced oil recovery, etc. Surfactant or surfact-active compounds are
amphiphilic in nature which decreases the surface and surface interfacial tension.
Chemically derived surfactant posses wide range of environmental pollutions was
clearly explained by (Swetal and Vaidehi 2018).
Many types of biosurfactants can be produced by a variety of microbes. The
biosurfactant produced by bacteria are the major classes which includes lipopeptides,
lipoproteins, glycolipids, surfactins, neutral lipids, phospholipids, etc., (Rosenberg
and Ron 1999). The microorganisms which produce biosurfactant are considered
as a nature gift because of the following properties; performance under extreme
conditions, environmental friendly, large scale production, etc., (Banat et al. 2000).
Mostly bacteria and yeasts are well known to produce a wide range of surface active
agents (Ebrahimi and Tashi 2012).Pseudomonas aeruginosa is a Gram-negative, rod
shaped bacterium. It is commonly found in flora of skin, water, air, soil, etc. Recent
studies showing the applications of this strain in various bioremediation processes.
Yassin et al. (2016), reported the importance of glycerol as the sole carbon source for
the production of rhamnolipid type of biosurfactant by Pseudomonas aeruginosa.
Zolgharnein (2010) experimental results showing that Pseudomonas spp., are potent
candidate for the absorption of heavy metals. In addition, the maximum absorbance
of heavy metal was reported for zinc, chromium, lead and cadmium.
The objective of this study was the production of rhamnolipid type of biosurfactant
and to apply in various fields as the bioremedial strategy and also to compare the
treatment process with biomass of P.aeroginosa.
C. Elizabeth Rani et al.
1 Introduction
Workers of welding industries, tanneries, factories manufacturing chromate
containing paints are exposed to hexavalent chromium that increases the risk of
developing serious adverse health effects was reported by Karanth et al. (1999).
Heavy metals are considered as major type of environmental pollutant. Similarly,
Dhanya et al. (2005) reported that Thirupur district of Tamil Nadu was contaminated
with heavy metals and the experimental studies revealed that contamination was due
to the release of effluent from textile industries.
Some industrial effluent may also contains toxic chemical compounds which will
affect the entire aquatic system. Those compounds may aggregate in waste water,
river, lakes, etc. Synthetic surfactants have applications in the processing of organic
compounds, enhanced oil recovery, etc. Surfactant or surfact-active compounds are
amphiphilic in nature which decreases the surface and surface interfacial tension.
Chemically derived surfactant posses wide range of environmental pollutions was
clearly explained by (Swetal and Vaidehi 2018).
Many types of biosurfactants can be produced by a variety of microbes. The
biosurfactant produced by bacteria are the major classes which includes lipopeptides,
lipoproteins, glycolipids, surfactins, neutral lipids, phospholipids, etc., (Rosenberg
and Ron 1999). The microorganisms which produce biosurfactant are considered
as a nature gift because of the following properties; performance under extreme
conditions, environmental friendly, large scale production, etc., (Banat et al. 2000).
Mostly bacteria and yeasts are well known to produce a wide range of surface active
agents (Ebrahimi and Tashi 2012).Pseudomonas aeruginosa is a Gram-negative, rod
shaped bacterium. It is commonly found in flora of skin, water, air, soil, etc. Recent
studies showing the applications of this strain in various bioremediation processes.
Yassin et al. (2016), reported the importance of glycerol as the sole carbon source for
the production of rhamnolipid type of biosurfactant by Pseudomonas aeruginosa.
Zolgharnein (2010) experimental results showing that Pseudomonas spp., are potent
candidate for the absorption of heavy metals. In addition, the maximum absorbance
of heavy metal was reported for zinc, chromium, lead and cadmium.
The objective of this study was the production of rhamnolipid type of biosurfactant
and to apply in various fields as the bioremedial strategy and also to compare the
treatment process with biomass of P.aeroginosa.