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Green surfactants–based bioremediation of polycyclic aromatic hydrocarbons (PAHs) from the environment is a promising technique. Rhamnolipids are a class of glycolipid surfactants that belong to the category of green surfactants and have distinctive characteristics. PAHs, which are hazardous toxins, are commonly found in polluted soil, water, and air. PAHs are difficult to break down because they are resistant to degradation and typical methods of cleaning up pollution are not very effective. In recent years, there has been a growing interest in the capacity of specific microorganism species to produce rhamnolipids, which can enhance the process of PAH biodegradation. Rhamnolipids can dissolve and enhance the accessibility of PAHs, thereby boosting the effectiveness of microorganisms that break down PAHs. The presence of rhamnolipids can be attributed to the equilibrium between hydrophobic and hydrophilic properties, as well as their positive charge. Rhamnolipids have biosurfactant properties, making them beneficial for the bioremediation of polluted soil and water. In general, rhamnolipids have proven to be a highly efficient means of removing PAHs from the environment, providing a viable alternative to conventional chemical approaches. Nevertheless, additional investigation is necessary to gain a deeper comprehension of the fundamental principles behind rhamnolipid‐assisted bioremediation and to enhance its implementation in larger real‐world scenarios. This study provides a concise overview of recent research on the utilization of rhamnolipids for bioremediating PAHs in the environment. The article covers the underlying mechanisms, the specific microorganisms employed, and the overall efficacy of the bioremediation process. The utilization of rhamnolipids as a bioremediation tool is examined, along with the difficulties and restrictions of its implementation. The review's conclusion is followed by a discussion on the future directions for studying this topic. [ABSTRACT FROM AUTHOR]

The cell‐free supernatant (CFS) of the biosurfactant (BS) producing pure strain of Planococcus maritimus SAMP MCC 3013 was used for enhanced oil recovery (EOR). An indigenous marine culture of P. maritimus was grown in mineral salt medium (MSM) supplemented with glucose (1%) (w/v) (30°C, 120 rpm, 7 days). CFS was used to demonstrate its application for oil recovery through three assays: pumice stone, saturated gravel, and the glass beads‐packed column. The recovery of light paraffin oil was ∼40% in the pumice stone assay and ∼43% in the oil‐saturated gravel assay, respectively. The glass bead column demonstrated ∼42% of additional 2T engine oil recovery by CFS. Our study showed that BS containing CFS from P. maritimus SAMP MCC 3013 has the ability to recover oil in its crude form without using any sophisticated purification techniques. All three methods operated by us are harmonizing with each other with respect to the findings. Those methods can be employed in large scale operations for the bio‐recovery of oils using an environmentally friendly approach through the functional properties of BS. This is most likely the first report describing the use of a glass bead pack column for EOR applications particularly from Planococcus sp. These results are symbolic of prospective applications of BS containing CFS from indigenous P. maritimus SAMP MCC 3013 under ex‐situ conditions. [ABSTRACT FROM AUTHOR]