Production of di-rhamnolipid with simultaneous distillery wastewater degradation and detoxification by newly isolated Pseudomonas aeruginosa SRRBL1

Ratna, Sheel; Kumar, Rajesh

doi:10.1016/j.jclepro.2022.130429

Cited by 11 publications

(4 citation statements)

References 75 publications

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“…Biosurfactant is an amphipathic molecule made up of hydrophobic and hydrophilic moieties ( Lal et al, 2018 ; Singh et al, 2018 ). Bacillus and Pseudomonas have previously been identified as potential biosurfactant producers for the removal of hazardous organic compounds and heavy metals from contaminated environments ( Ambust et al, 2021 ; Ratna and Kumar, 2022 ). In this study, strains T7 and M2 showed biosurfactant production, and these strains were combined with other strains and included in consortium ERM C-1.…”

Section: Discussionmentioning

confidence: 99%

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Mechanism and kinetics of chlorpyrifos co-metabolism by using environment restoring microbes isolated from rhizosphere of horticultural crops under subtropics

et al. 2022

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The indiscriminate use of organophosphate insecticide chlorpyrifos in agricultural crops causes significant soil and water pollution and poses a serious threat to the global community. In this study, a microbial consortium ERM C-1 containing bacterial strains Pseudomonas putida T7, Pseudomonas aeruginosa M2, Klebsiella pneumoniae M6, and a fungal strain Aspergillus terreus TF1 was developed for the effective degradation of chlorpyrifos. Results revealed that microbial strains were not only utilizing chlorpyrifos (500 mg L–1) but also coupled with plant growth-promoting characteristics and laccase production. PGP traits, that is, IAA (35.53, 45.53, 25.19, and 25.53 μg mL–1), HCN (19.85, 17.85, 12.18, and 9.85 μg mL–1), and ammonium (14.73, 16.73, 8.05, and 10.87 μg mL–1) production, and potassium (49.53, 66.72, 46.14, and 52.72 μg mL–1), phosphate (52.37, 63.89, 33.33, and 71.89 μg mL–1), and zinc (29.75, 49.75, 49.12, and 57.75 μg mL–1) solubilization tests were positive for microbial strains T7, M2, M6, and TF1, respectively. The laccase activity by ERM C-1 was estimated as 37.53, 57.16, and 87.57 enzyme U mL–1 after 5, 10, and 15 days of incubation, respectively. Chlorpyrifos degradation was associated with ERM C-1 and laccase activity, and the degree of enzyme activity was higher in the consortium than in individual strains. The biodegradation study with developed consortium ERM C-1 showed a decreased chlorpyrifos concentration from the 7th day of incubation (65.77% degradation) followed by complete disappearance (100% degradation) after the 30th day of incubation in the MS medium. First-order degradation kinetics with a linear model revealed a high k –day value and low t1/2 value in ERM C-1. The results of HPLC and GC-MS analysis proved that consortium ERM C-1 was capable of completely removing chlorpyrifos by co-metabolism mechanism.

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Section: Discussionmentioning

confidence: 99%

“…The foaming test was performed by following the method of Abouseoud et al (2008) , which was later modified by Ratna and Kumar (2022) . The production of foam by 96-h old culture, when shaken gently for 2 min, indicated positive results for foam production.…”

Section: Methodsmentioning

confidence: 99%

Mechanism and kinetics of chlorpyrifos co-metabolism by using environment restoring microbes isolated from rhizosphere of horticultural crops under subtropics

et al. 2022

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“… - Bioremediation and oil recovery [ 118 ] Oil Waste cooking oil (WCO) Pseudomonas aeruginosa MTCC7815 Rhamnolipid Oil biodegradation [ 119 ] Oil Soybean waste frying oil Streptomyces sp. DPUA1566 Lipopeptide Bioremediation [ 101 ] Oil Waste sunflower oil Burkholderia thailandensis Rhamnolipid - [ 120 ] Oil Palm oil effluent and crude glycerol Bacillus subtilis TD4 Lipopeptide Biodegradation of oil industry waste [ 121 ] Alcohol Distillery wastewater (DWW) Pseudomonas aeruginosa SRRBL1 Rhamnolipid - [ 122 ] Cellulose Liquor from sisal pulp hydrolysis Bacillus subtilis Surfactin Bioremediation [ 123 ] …”

Section: Biosurfactant Productionmentioning

confidence: 99%

Bacterial-derived surfactants: an update on general aspects and forthcoming applications

Dias

Nitschke

2023

Braz J Microbiol

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The search for sustainable alternatives to the production of chemicals using renewable substrates and natural processes has been widely encouraged. Microbial surfactants or biosurfactants are surface-active compounds synthesized by fungi, yeasts, and bacteria. Due to their great metabolic versatility, bacteria are the most traditional and well-known microbial surfactant producers, being Bacillus and Pseudomonas species their typical representatives. To be successfully applied in industry, surfactants need to maintain stability under the harsh environmental conditions present in manufacturing processes; thus, the prospection of biosurfactants derived from extremophiles is a promising strategy to the discovery of novel and useful molecules. Bacterial surfactants show interesting properties suitable for a range of applications in the oil industry, food, agriculture, pharmaceuticals, cosmetics, bioremediation, and more recently, nanotechnology. In addition, they can be synthesized using renewable resources as substrates, contributing to the circular economy and sustainability. The article presents a general and updated review of bacterial-derived biosurfactants, focusing on the potential of some groups that are still underexploited, as well as, recent trends and contributions of these versatile biomolecules to circular bioeconomy and nanotechnology. Graphical Abstract

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“…1 H NMR and 13 C NMR spectra were examined in this study. Rhamnolipid powder (3 to 4 mg) was dissolved in deuterated ethanol and analyzed [42]. Chemical shifts are shown in parts per million (ppm) and coupling constants in hertz (Hz).…”

Section: Physicochemical Characterization Of Rhamnolipid Biosurfactantsmentioning

confidence: 99%

The Behavior, Stability Properties, and Potential Applications of Rhamnolipid Biosurfactants in Oil Degradation

Zainal Abidin,

Sakaria,

Azman

et al. 2023

AEJ

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Rhamnolipid biosurfactants are among the most investigated for various applications, owing not only to their much lower environmental impact compared to chemical surfactants but also because they have proven effective in reducing surface tension and critical micelle concentration (CMC). However, there is concern regarding their high cost. This work aims to determine important behavior and properties of rhamnolipids and verify their potential for oil degradation. They were characterized using FTIR, 1H NMR, and 13C NMR spectroscopy to determine the main functional groups and the chemical structure of rhamnolipids for oil degreasing. Then, the influence of thermodynamic properties on CMC stability was studied to establish the stability behavior. This investigation is essential as good oil degreasing products require low CMC values to minimize the amount used during the oil removal process, form micelles, and solubilize dirt and oil. The oil degradation ability of rhamnolipids in different concentrations was studied using an oil dispersion test and the method of oil removal from a glass surface. Overall, this investigation proves that the temperature of the solution and immersion time influenced the CMC and surface tension value for the rhamnolipids. The lowest CMC value was 35 mg/L at 55 °C after 48 h of stabilization. The minimum recommended amount of rhamnolipids for the oil degrease formulation was also found to be 0.1% w/v, which is very low. This study showed that the behavior and stability of rhamnolipids are suitable for oil degradation applications and can efficiently replace chemical surfactants in oil degradation products.

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Production of di-rhamnolipid with simultaneous distillery wastewater degradation and detoxification by newly isolated Pseudomonas aeruginosa SRRBL1

Cited by 11 publications

References 75 publications

Mechanism and kinetics of chlorpyrifos co-metabolism by using environment restoring microbes isolated from rhizosphere of horticultural crops under subtropics

Mechanism and kinetics of chlorpyrifos co-metabolism by using environment restoring microbes isolated from rhizosphere of horticultural crops under subtropics

Bacterial-derived surfactants: an update on general aspects and forthcoming applications

The Behavior, Stability Properties, and Potential Applications of Rhamnolipid Biosurfactants in Oil Degradation

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