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Thundiparambil Venu A, Vijayan J, Ammanamveetil MHA, Kottekkattu Padinchati K. An Insightful Overview of Microbial Biosurfactant: A Promising Next-Generation Biomolecule for Sustainable Future. J Basic Microbiol 2024; 64:e2300757. [PMID: 38934506 DOI: 10.1002/jobm.202300757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 03/27/2024] [Accepted: 04/21/2024] [Indexed: 06/28/2024]
Abstract
Microbial biosurfactant is an emerging vital biomolecule of the 21st century. They are amphiphilic compounds produced by microorganisms and possess unique properties to reduce surface tension activity. The use of microbial surfactants spans most of the industrial fields due to their biodegradability, less toxicity, being environmentally safe, and being synthesized from renewable sources. These would be highly efficient eco-friendly alternatives to petroleum-derived surfactants that would open up new approaches to research on the production of biosurfactants. In the upcoming era, biobased surfactants will become a dominating multifunctional compound in the world market. Research on biosurfactants ranges from the search for novel microorganisms that can produce new molecules, structural and physiochemical characterization of biosurfactants, and fermentation process for enhanced large-scale productivity and green applications. The main goal of this review is to provide an overview of the recent state of knowledge and trends about microbially derived surfactants, various aspects of biosurfactant production, definition, properties, characteristics, diverse advances, and applications. This would lead a long way in the production of biosurfactants as globally successful biomolecules of the current century.
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Affiliation(s)
- Athira Thundiparambil Venu
- Department of Marine Biology, Microbiology, and Biochemistry, School of Marine Sciences, Cochin University of Science and Technology, Kochi, Kerala, India
| | - Jasna Vijayan
- Department of Marine Biology, Microbiology, and Biochemistry, School of Marine Sciences, Cochin University of Science and Technology, Kochi, Kerala, India
| | - Mohamed Hatha Abdulla Ammanamveetil
- Department of Marine Biology, Microbiology, and Biochemistry, School of Marine Sciences, Cochin University of Science and Technology, Kochi, Kerala, India
- CUSAT-NCPOR Centre for Polar Science, Kochi, Kerala, India
| | - Krishnan Kottekkattu Padinchati
- Arctic Ecology and Biogeochemistry Division, National Centre for Polar and Ocean Research, Ministry of Earth Sciences, Vasco-da-Gama, Goa, India
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Hosseini S, Sharifi R, Habibi A, Ali Q. Molecular identification of rhamnolipids produced by Pseudomonas oryzihabitans during biodegradation of crude oil. Front Microbiol 2024; 15:1459112. [PMID: 39234543 PMCID: PMC11372847 DOI: 10.3389/fmicb.2024.1459112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2024] [Accepted: 08/07/2024] [Indexed: 09/06/2024] Open
Abstract
Introduction The ability to produce biosurfactants plays a meaningful role in the bioavailability of crude oil hydrocarbons and the bioremediation efficiency of crude oil-degrading bacteria. This study aimed to characterize the produced biosurfactants by Pseudomonas oryzihabitans during the biodegradation of crude oil hydrocarbons. Methods The biosurfactants were isolated and then characterized by Fourier transform infrared (FTIR), liquid chromatography-mass-spectrometry (LC-MS), and nuclear magnetic resonance spectroscopy (NMR) analyses. Results The FTIR results revealed the existence of hydroxyl, carboxyl, and methoxyl groups in the isolated biosurfactants. Also, the LC-MS analysis demonstrated a main di-rhamnolipid (l-rhamnopyranosyll-rhamnopyranosyl-3-hydroxydecanoyl-3-hydroxydecanoate, Rha-Rha-C10-C10) along with a mono-rhamnolipid (l-rhamnopyranosyl-b-hydroxydecanoylb-hydroxydecanoate, Rha-C10-C10). In agreement with these findings, the NMR analysis confirmed the aromatic, carboxylic, methyl, sulfate moieties, and hexose sugar in the biosurfactants. The emulsion capacity of the biosurfactants decreased the surface tension of the aqueous system from 73.4 mN m-1 to around 33 mN m-1 at 200 mg L-1 as the critical micelle concentration. The emulsification capacity of the biosurfactants in the formation of a stable microemulsion for the diesel-water system at a wide range of pH (2-12), temperature (0-80°C), and salinity (2-20 g L-1 of NaCl) showed their potential use in oil recovery and bioremediation through the use of microbial enhancement. Discussion This work showed the ability of Pseudomonas oryzihabitans NC392 cells to produce rhamnolipid molecules during the biodegradation process of crude oil hydrocarbons. These biosurfactants have potential in bioremediation studies as eco-friendly and biodegradable products, and their stability makes them optimal for areas with extreme conditions.
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Affiliation(s)
- Saman Hosseini
- Department of Plant Protection, College of Agriculture and Natural Resources, Razi University, Kermanshah, Iran
| | - Rouhallah Sharifi
- Department of Plant Protection, College of Agriculture and Natural Resources, Razi University, Kermanshah, Iran
| | - Alireza Habibi
- Faculty of Petroleum and Chemical Engineering, Razi University, Kermanshah, Iran
| | - Qurban Ali
- Department of Biology, College of Science, United Arab Emirates University, Al-Ain, United Arab Emirates
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Kłosowska-Chomiczewska IE, Macierzanka A, Parchem K, Miłosz P, Bladowska S, Płaczkowska I, Hewelt-Belka W, Jungnickel C. Microbe cultivation guidelines to optimize rhamnolipid applications. Sci Rep 2024; 14:8362. [PMID: 38600115 PMCID: PMC11006924 DOI: 10.1038/s41598-024-59021-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 04/05/2024] [Indexed: 04/12/2024] Open
Abstract
In the growing landscape of interest in natural surfactants, selecting the appropriate one for specific applications remains challenging. The extensive, yet often unsystematized, knowledge of microbial surfactants, predominantly represented by rhamnolipids (RLs), typically does not translate beyond the conditions presented in scientific publications. This limitation stems from the numerous variables and their interdependencies that characterize microbial surfactant production. We hypothesized that a computational recipe for biosynthesizing RLs with targeted applicational properties could be developed from existing literature and experimental data. We amassed literature data on RL biosynthesis and micellar solubilization and augmented it with our experimental results on the solubilization of triglycerides (TGs), a topic underrepresented in current literature. Utilizing this data, we constructed mathematical models that can predict RL characteristics and solubilization efficiency, represented as logPRL = f(carbon and nitrogen source, parameters of biosynthesis) and logMSR = f(solubilizate, rhamnolipid (e.g. logPRL), parameters of solubilization), respectively. The models, characterized by robust R2 values of respectively 0.581-0.997 and 0.804, enabled the ranking of descriptors based on their significance and impact-positive or negative-on the predicted values. These models have been translated into ready-to-use calculators, tools designed to streamline the selection process for identifying a biosurfactant optimally suited for intended applications.
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Affiliation(s)
- Ilona E Kłosowska-Chomiczewska
- Department of Colloid and Lipid Science, Faculty of Chemistry, Gdańsk University of Technology, 11/12 G. Narutowicza St., 80-233, Gdańsk, Poland.
| | - Adam Macierzanka
- Department of Colloid and Lipid Science, Faculty of Chemistry, Gdańsk University of Technology, 11/12 G. Narutowicza St., 80-233, Gdańsk, Poland
| | - Karol Parchem
- Department of Chemistry, Technology and Biotechnology of Food, Faculty of Chemistry, Gdańsk University of Technology, 11/12 G. Narutowicza St., 80-233, Gdańsk, Poland
| | - Pamela Miłosz
- Department of Colloid and Lipid Science, Faculty of Chemistry, Gdańsk University of Technology, 11/12 G. Narutowicza St., 80-233, Gdańsk, Poland
| | - Sonia Bladowska
- Department of Colloid and Lipid Science, Faculty of Chemistry, Gdańsk University of Technology, 11/12 G. Narutowicza St., 80-233, Gdańsk, Poland
| | - Iga Płaczkowska
- Department of Colloid and Lipid Science, Faculty of Chemistry, Gdańsk University of Technology, 11/12 G. Narutowicza St., 80-233, Gdańsk, Poland
| | - Weronika Hewelt-Belka
- Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 G. Narutowicza St., 80-233, Gdańsk, Poland
| | - Christian Jungnickel
- Department of Colloid and Lipid Science, Faculty of Chemistry, Gdańsk University of Technology, 11/12 G. Narutowicza St., 80-233, Gdańsk, Poland
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Zhou J, Miao SJ, Yang SZ, Liu JF, Gang HZ, Mu BZ. Quantitative determination of rhamnolipid using HPLC-UV through carboxyl labeling. Biotechnol Appl Biochem 2023; 70:1806-1816. [PMID: 37278163 DOI: 10.1002/bab.2483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 05/21/2023] [Indexed: 06/07/2023]
Abstract
Rhamnolipid, as a low-toxic, biodegradable and environmentally friendly biosurfactant, has broad application prospects in many industries. However, the quantitative determination of rhamnolipid is still a challenging task. Here, a new sensitive method for the quantitative analysis of rhamnolipid based on a simple derivatization reaction was developed. In this study, 3-[3'-(l-rhamnopyranosyloxy) decanoyloxy] decanoic acid (Rha-C10-C10) and 3-[3'-(2'-O-α-l-rhamnopyranosyloxy) decanoyloxy] decanoic acid (Rha-Rha-C10-C10) were utilized as the representative rhamnolipids. Liquid chromatography-mass spectrometry and high-performance liquid chromatography-ultra violet results showed that these two compounds were successfully labeled with 1 N1-(4-nitrophenyl)-1,2-ethylenediamine. There was an excellent linear relationship between rhamnolipid concentration and peak area of labeled rhamnolipid. The detection limits of the Rha-C10-C10 and Rha-Rha-C10-C10 were 0.018 mg/L (36 nmol/L) and 0.014 mg/L (22 nmol/L), respectively. The established amidation method was suitable for the accurate analysis of rhamnolipids in the biotechnological process. The method had good reproducibility with the relative standard deviation of 0.96% and 0.79%, respectively, and sufficient accuracy with a recovery of 96%-100%. This method was applied to quantitative analysis of 10 rhamnolipid homologs metabolized by Pseudomonas aeruginosa LJ-8. The single labeling method was used for the quantitative analysis of multiple components, which provided an effective method for the quality evaluation of other glycolipids with carboxyl groups.
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Affiliation(s)
- Jing Zhou
- State Key Laboratory of Bioreactor Engineering and School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, P. R. China
| | - Si-Jia Miao
- State Key Laboratory of Bioreactor Engineering and School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, P. R. China
| | - Shi-Zhong Yang
- State Key Laboratory of Bioreactor Engineering and School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, P. R. China
- Engineering Research Center of Microbial Enhanced Oil Recovery, Ministry of Education, Shanghai, P. R. China
| | - Jin-Feng Liu
- State Key Laboratory of Bioreactor Engineering and School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, P. R. China
- Engineering Research Center of Microbial Enhanced Oil Recovery, Ministry of Education, Shanghai, P. R. China
| | - Hong-Ze Gang
- State Key Laboratory of Bioreactor Engineering and School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, P. R. China
- Engineering Research Center of Microbial Enhanced Oil Recovery, Ministry of Education, Shanghai, P. R. China
| | - Bo-Zhong Mu
- State Key Laboratory of Bioreactor Engineering and School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, P. R. China
- Engineering Research Center of Microbial Enhanced Oil Recovery, Ministry of Education, Shanghai, P. R. China
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Rawi NN, Ramzi MM, Rahman NIA, Ariffin F, Saidin J, Bhubalan K, Mazlan NW, Zin NAM, Siong JYF, Bakar K, Azemi AK, Ismail N. Antifouling Potential of Ethyl Acetate Extract of Marine Bacteria Pseudomonas aeruginosa Strain RLimb. Life (Basel) 2023; 13:life13030802. [PMID: 36983957 PMCID: PMC10053361 DOI: 10.3390/life13030802] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 03/11/2023] [Accepted: 03/13/2023] [Indexed: 03/18/2023] Open
Abstract
Biofouling is defined as the excessive colonization process of epibiotic organisms, ranging from microfoulers to macrofoulers, on any submerged surface in water. Previous research has attempted to explore the antifouling activity of bacterial isolates due to the biofouling problems occurring worldwide. One solution is to inhibit the early stage of fouling using secondary metabolites produced by marine bacteria. This study aims to determine the antifouling activities of the marine microorganism P. aeruginosa and to characterize the bacteria isolated as a potential anti-biofouling agent. The bacterial isolate was cultured and isolated on a media culture. The bacteria culture extract was extracted using ethyl acetate and concentrated prior to the bioassay method. It was screened for antibacterial activities against Gram-positive and Gram-negative bacteria, such as Bacillus cereus, Streptococcus uberis, Pseudomonas sp., and Vibrio parahaemolyticus, using the disk diffusion technique. The extract was investigated to verify its bioactivity in the prevention of biofilm formation following the crystal violet assay and aquarium test. The results indicated the inhibition of activity through biofilm formation, with the highest percentage at 83% of biofilm inhibition at a concentration of 0.1563 mg/mL. The bacterial isolate at a concentration of 5% showed the highest reduction in bacteria colonies in the aquarium test (161.8 × 103 CFU/mL compared to 722.5 × 103 CFU/mL for the blank sample). The bacterial isolate was characterized through phenotypic and genotypic tests for species identification. It was identified as a Gram-stain-negative, aerobic, and long-rod-shaped bacteria, designated as RLimb. Based on the 16S rDNA gene sequencing analysis, RLimb was identified as Pseudomonas aeruginosa (accession number: OP522351), exhibiting a similarity of 100% to the described neighbor P. aeruginosa strain DSM 50071. These results indicated that these isolated bacteria can potentially be used as a substitute for toxic antifoulants to prevent the formation of microfoulers.
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Affiliation(s)
- Nurul Najihah Rawi
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, Kuala Terengganu 21030, Terengganu, Malaysia (J.S.); (K.B.); (N.A.M.Z.); (J.Y.F.S.); (K.B.)
| | - Mujahidah Mohd Ramzi
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, Kuala Terengganu 21030, Terengganu, Malaysia (J.S.); (K.B.); (N.A.M.Z.); (J.Y.F.S.); (K.B.)
| | - Nor Izzati Abd Rahman
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, Kuala Terengganu 21030, Terengganu, Malaysia (J.S.); (K.B.); (N.A.M.Z.); (J.Y.F.S.); (K.B.)
| | - Fazilah Ariffin
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Terengganu 21030, Terengganu, Malaysia; (F.A.); (N.W.M.)
| | - Jasnizat Saidin
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, Kuala Terengganu 21030, Terengganu, Malaysia (J.S.); (K.B.); (N.A.M.Z.); (J.Y.F.S.); (K.B.)
| | - Kesaven Bhubalan
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, Kuala Terengganu 21030, Terengganu, Malaysia (J.S.); (K.B.); (N.A.M.Z.); (J.Y.F.S.); (K.B.)
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Terengganu 21030, Terengganu, Malaysia; (F.A.); (N.W.M.)
| | - Noor Wini Mazlan
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Terengganu 21030, Terengganu, Malaysia; (F.A.); (N.W.M.)
| | - Nor Atikah Mohd Zin
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, Kuala Terengganu 21030, Terengganu, Malaysia (J.S.); (K.B.); (N.A.M.Z.); (J.Y.F.S.); (K.B.)
| | - Julius Yong Fu Siong
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, Kuala Terengganu 21030, Terengganu, Malaysia (J.S.); (K.B.); (N.A.M.Z.); (J.Y.F.S.); (K.B.)
| | - Kamariah Bakar
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, Kuala Terengganu 21030, Terengganu, Malaysia (J.S.); (K.B.); (N.A.M.Z.); (J.Y.F.S.); (K.B.)
| | - Ahmad Khusairi Azemi
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, Kuala Terengganu 21030, Terengganu, Malaysia (J.S.); (K.B.); (N.A.M.Z.); (J.Y.F.S.); (K.B.)
- Correspondence: (A.K.A.); (N.I.); Tel.: +60-96683240 (N.I.)
| | - Noraznawati Ismail
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, Kuala Terengganu 21030, Terengganu, Malaysia (J.S.); (K.B.); (N.A.M.Z.); (J.Y.F.S.); (K.B.)
- Correspondence: (A.K.A.); (N.I.); Tel.: +60-96683240 (N.I.)
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Kumari K, Behera HT, Nayak PP, Sinha A, Nandi A, Ghosh A, Saha U, Suar M, Panda PK, Verma SK, Raina V. Amelioration of lipopeptide biosurfactants for enhanced antibacterial and biocompatibility through molecular antioxidant property by methoxy and carboxyl moieties. Biomed Pharmacother 2023; 161:114493. [PMID: 36906974 DOI: 10.1016/j.biopha.2023.114493] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 02/27/2023] [Accepted: 03/07/2023] [Indexed: 03/12/2023] Open
Abstract
Biosurfactants having surface-active biomolecules have been the cynosure in environment research due to their vast application. However, the lack of information about their low-cost production and detailed mechanistic biocompatibility limits the applicability. The study explores techniques for the production and design of low-cost, biodegradable, and non-toxic biosurfactants from Brevibacterium casei strain LS14 and excavates the mechanistic details of their biomedical properties like antibacterial effects and biocompatibility. Taguchi's design of experiment was used to optimize for enhancing biosurfactant production by optimal factor combinations like Waste glycerol (1%v/v), peptone (1%w/v), NaCl 0.4% (w/v), and pH 6. Under optimal conditions, the purified biosurfactant reduced the surface tension to 35 mN/m from 72.8 mN/m (MSM) and a critical micelle concentration of 25 mg/ml was achieved. Spectroscopic analyses of the purified biosurfactant using Nuclear Magnetic Resonance suggested it as a lipopeptide biosurfactant. The evaluation of mechanistic antibacterial, antiradical, antiproliferative, and cellular effects indicated the efficient antibacterial activity (against Pseudomonas aeruginosa) of biosurfactants due to free radical scavenging activity and oxidative stress. Moreover, the cellular cytotoxicity was estimated by MTT and other cellular assays revealing the phenomenon as the dose-dependent induction of apoptosis due to free radical scavenging with an LC50 of 55.6 ± 2.3 mg/ml.
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Affiliation(s)
- Khushbu Kumari
- School of Biotechnology, KIIT-DU, Bhubaneswar 751024, India
| | | | | | - Adrija Sinha
- School of Biotechnology, KIIT-DU, Bhubaneswar 751024, India
| | - Aditya Nandi
- School of Biotechnology, KIIT-DU, Bhubaneswar 751024, India
| | - Aishee Ghosh
- School of Biotechnology, KIIT-DU, Bhubaneswar 751024, India
| | - Utsa Saha
- School of Biotechnology, KIIT-DU, Bhubaneswar 751024, India
| | | | - Pritam Kumar Panda
- Department of Physics and Astronomy (Materials Theory), Uppsala University, 75121, Sweden.
| | - Suresh K Verma
- School of Biotechnology, KIIT-DU, Bhubaneswar 751024, India.
| | - Vishakha Raina
- School of Biotechnology, KIIT-DU, Bhubaneswar 751024, India.
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Phulpoto IA, Yu Z, Qazi MA, Ndayisenga F, Yang J. A comprehensive study on microbial-surfactants from bioproduction scale-up toward electrokinetics remediation of environmental pollutants: Challenges and perspectives. CHEMOSPHERE 2023; 311:136979. [PMID: 36309062 DOI: 10.1016/j.chemosphere.2022.136979] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 10/19/2022] [Accepted: 10/20/2022] [Indexed: 06/16/2023]
Abstract
Currently, researchers have focused on electrokinetic (EK) bioremediation due to its potential to remove a wide-range of pollutants. Further, to improve their performance, synthetic surfactants are employed as effective additives because of their excellent solubility and mobility. Synthetic surfactants have an excessive position in industries since they are well-established, cheap, and easily available. Nevertheless, these surfactants have adverse environmental effects and could be detrimental to aquatic and terrestrial life. Owing to social and environmental awareness, there is a rising demand for bio-based surfactants in the global market, from environmental sustainability to public health, because of their excellent surface and interfacial activity, higher and stable emulsifying property, biodegradability, non- or low toxicity, better selectivity and specificity at extreme environmental conditions. Unfortunately, challenges to biosurfactants, like expensive raw materials, low yields, and purification processes, hinder their applicability to large-scale. To date, extensive research has already been conducted for production scale-up using multidisciplinary approaches. However, it is still essential to research and develop high-yielding bacteria for bioproduction through traditional and biotechnological advances to reduce production costs. Herein, this review evaluates the recent progress made on microbial-surfactants for bioproduction scale-up and provides detailed information on traditional and advanced genetic engineering approaches for cost-effective bioproduction. Furthermore, this study emphasized the role of electrokinetic (EK) bioremediation and discussed the application of BioS-mediated EK for various pollutants remediation.
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Affiliation(s)
- Irfan Ali Phulpoto
- College of Resources and Environment, University of Chinese Academy of Sciences, 19 A Yuquan Road, Beijing, 100049, China; Institute of Microbiology, Faculty of Natural Science, Shah Abdul Latif University, Khairpur Mir's, 66020, Sindh, Pakistan
| | - Zhisheng Yu
- College of Resources and Environment, University of Chinese Academy of Sciences, 19 A Yuquan Road, Beijing, 100049, China; RCEES-IMCAS-UCAS Joint-Lab of Microbial Technology for Environmental Science, Beijing, 100085, China.
| | - Muneer Ahmed Qazi
- Institute of Microbiology, Faculty of Natural Science, Shah Abdul Latif University, Khairpur Mir's, 66020, Sindh, Pakistan
| | - Fabrice Ndayisenga
- College of Resources and Environment, University of Chinese Academy of Sciences, 19 A Yuquan Road, Beijing, 100049, China
| | - Jie Yang
- College of Resources and Environment, University of Chinese Academy of Sciences, 19 A Yuquan Road, Beijing, 100049, China
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Ankulkar R, Chavan S, Aphale D, Chavan M, Mirza Y. Cytotoxicity of di-rhamnolipids produced by Pseudomonas aeruginosa RA5 against human cancerous cell lines. 3 Biotech 2022; 12:323. [PMID: 36276467 PMCID: PMC9568642 DOI: 10.1007/s13205-022-03391-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 09/30/2022] [Indexed: 11/01/2022] Open
Abstract
Rhamnolipid biosurfactant produced by Pseudomonas aeruginosa, possesses non-toxicity, environmental compatibility, a wide range of pH (4-8), temperature (4-100 °C), and salinity (1-10%) stability. The application of RLs is worldwide accepted in the pharmaceutical, medicinal, and food industries. It has been used for cytotoxicity efficacy analysis with a limited number of cancerous cell lines. To widen the scope of rhamnolipid application as an anticancer agent, we have studied Di-RLs homolog, 'Rha-Rha-C10-C10' produced by Pseudomonas aeruginosa RA5 against human cancerous cell lines including breast cancer (MCF-7), leukemia (K-562), cervical cancer (HeLa), Lung cancer (HOP-62), and colon cancer (HT-29) in a dose-dependent way. It was purified with silica gel chromatography followed by TLC and mass spectroscopy prior to cytotoxicity analysis. With a tensiometer, critical micelle concentration of Di-RLs was estimated to be 33.92 ± 2 mN/m at 0.2%. Cytotoxicity analysis of Di-RLs on K-562 cell line demonstrated inhibition with GI50 and TGI at < 10 µg/mL and 66.6 µg/mL, after 48 h of application. The morphology of human cancerous cell lines was observed under a laser confocal microscope with the SRB staining method. Further research is recommended to comprehend the Di-RLs as a potential anti-cancer agent.
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Affiliation(s)
- Rutuja Ankulkar
- Praj-Matrix - R&D Centre (Division of Praj Industries Limited), 402/403/1098, Urawade, Pirangut, Mulshi, Pune, Maharashtra 412 115 India
- Department of Microbiology, Walchand College of Arts and Science, District: Solapur, Solapur, 413006 India
| | - Sambhaji Chavan
- Praj-Matrix - R&D Centre (Division of Praj Industries Limited), 402/403/1098, Urawade, Pirangut, Mulshi, Pune, Maharashtra 412 115 India
| | - Durgadevi Aphale
- Praj-Matrix - R&D Centre (Division of Praj Industries Limited), 402/403/1098, Urawade, Pirangut, Mulshi, Pune, Maharashtra 412 115 India
| | - Meera Chavan
- Department of Microbiology, Walchand College of Arts and Science, District: Solapur, Solapur, 413006 India
| | - Yasmin Mirza
- Praj-Matrix - R&D Centre (Division of Praj Industries Limited), 402/403/1098, Urawade, Pirangut, Mulshi, Pune, Maharashtra 412 115 India
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Biosurfactant Production by Bacillus amyloliquefaciens C11 and Streptomyces lavendulae C27 Isolated from a Biopurification System for Environmental Applications. Microorganisms 2022; 10:microorganisms10101892. [DOI: 10.3390/microorganisms10101892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 08/20/2022] [Accepted: 08/22/2022] [Indexed: 11/16/2022] Open
Abstract
Biosurfactant-producing bacteria can be found in contaminated environments such as biopurification systems (BPS) for pesticide treatments. A total of 18 isolates were screened to determine their ability to produce extracellular biosurfactants, using olive oil as the main carbon source. Out of the eighteen isolates, two strains (C11 and C27) were selected for biosurfactant production. The emulsification activities of the C11 and C27 strains using sunflower oil was 58.4 and 53.7%, respectively, and 46.6 and 48.0% using olive oil. Using molecular techniques and MALDI-TOF, the strains were identified as Bacillus amyloliquefaciens (C11) and Streptomyces lavendulae (C27). The submerged cultivation of the two selected strains was carried out in a 1 L stirred-tank bioreactor. The maximum biosurfactant production, indicated by the lowest surface tension measurement, was similar (46 and 45 mN/m) for both strains, independent of the fact that the biomass of the B. amyloliquefaciens C11 strain was 50% lower than the biomass of the S. lavendulae C27 strain. The partially purified biosurfactants produced by B. amyloliquefaciens C11 and S. lavendulae C27 were characterized as a lipopeptide and a glycolipid, respectively. These outcomes highlight the potential of the selected biosurfactant-producing microorganisms for improving pesticides’ bioavailability and therefore the degradational efficacy of BPS.
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Production and Characterization of Rhamnolipids Produced by Pseudomonas aeruginosa DBM 3774: Response Surface Methodology Approach. Microorganisms 2022; 10:microorganisms10071272. [PMID: 35888990 PMCID: PMC9321515 DOI: 10.3390/microorganisms10071272] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 06/21/2022] [Accepted: 06/21/2022] [Indexed: 02/05/2023] Open
Abstract
Rhamnolipids are extensively studied biosurfactants due to their potential in many industrial applications, eco-friendly production and properties. However, their availability for broader application is severely limited by their production costs, therefore the optimization of efficacy of their cultivation gains significance as well as the information regarding the physio-chemical properties of rhamnolipids resulting from various cultivation strategies. In this work, the bioprocess design focused on optimization of the rhamnolipid yield of Pseudomonas aeruginosa DBM 3774 utilizing the response surface methodology (RSM). Six carbon sources were investigated for their effect on the rhamnolipid production. The RSM prediction improved the total rhamnolipid yield from 2.2 to 13.5 g/L and the rhamnolipid productivity from 11.6 to 45.3 mg/L/h. A significant effect of the carbon source type, concentration and the C/N ratio on the composition of the rhamnolipid congeners has been demonstrated for cultivation of P. aeruginosa DBM 3774 in batch cultivation. Especially, changes in presence of saturated fatty acid in the rhamnolipid congeners, ranging from 18.8% of unsaturated fatty acids (carbon source glycerol; 40 g/L) to 0% (sodium citrate 20 g/L) were observed. This demonstrates possibilities of model based systems as basis in cultivation of industrially important compounds like biosurfactants rhamnolipids and the importance of detailed study of interconnection between cultivation conditions and rhamnolipid mixture composition and properties.
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11
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Effect of bacteria on oil/water interfacial tension in asphaltenic oil reservoirs. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128263] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Bioprospecting of indigenous biosurfactant-producing oleophilic bacteria for green remediation: an eco-sustainable approach for the management of petroleum contaminated soil. 3 Biotech 2022; 12:13. [PMID: 34966636 PMCID: PMC8660960 DOI: 10.1007/s13205-021-03068-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 11/17/2021] [Indexed: 01/03/2023] Open
Abstract
In the present study, the efficiency of four different strains of Pseudomonas aeruginosa and their biosurfactants in the bioremediation process were investigated. The strains were found to be capable of metabolizing a wide range of hydrocarbons (HCs) with preference for high molecular weight aliphatic (ALP) over aromatic (ARO) compounds. After treating with individual bacteria and 11 different consortia, the residual crude oils were quantified and qualitatively analyzed. The bacterial strains degraded ALP, ARO, and nitrogen, sulphur, oxygen (NSO) containing fractions of the crude oil by 73-67.5, 31.8-12.3 and 14.7-7.3%, respectively. Additionally, the viscosity of the residual crude oil reduced from 48.7 to 34.6-39 mPa s. Further, consortium designated as 7 and 11 improved the degradation of ALP, ARO, and NSO HCs portions by 80.4-78.6, 42.7-42.4 and 21.6-19.2%, respectively. Moreover, addition of biosurfactant further increased the degradation performance of consortia by 81.6-80.7, 43.8-42.6 and 22.5-20.7%, respectively. Gas chromatographic analysis confirmed the ability of the individual strains and their consortium to degrade various fractions of crude oil. Experiments with biosurfactants revealed that polyaromatic hydrocarbons (PAHs) are more soluble in the presence of biosurfactants. Phenanthrene had the highest solubility among the tested PAHs, which further increased as biosurfactant doses raised above their respective critical micelle concentrations (CMC). Furthermore, biosurfactants were able to recover 73.5-63.4% of residual oil from the sludge within their respective CMCs. Hence, selected surfactant-producing bacteria and their consortium could be useful in developing a greener and eco-sustainable way for removing crude oil pollutants from soil.
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Improving Oil Recovery of the Heterogeneous Low Permeability Reservoirs by Combination of Polymer Hydrolysis Polyacrylamide and Two Highly Biosurfactant-Producing Bacteria. SUSTAINABILITY 2021. [DOI: 10.3390/su14010423] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Polymer hydrolysis polyacrylamide and microbes have been used to enhance oil recovery in many oil reservoirs. However, the application of this two-method combination was less investigated, especially in low permeability reservoirs. In this work, two bacteria, a rhamnolipid-producing Pseudomonas aeruginosa 8D and a lipopeptide-producing Bacillus subtilis S4, were used together with hydrolysis poly-acrylamide in a low permeability heterogeneous core physical model. The results showed that when the two bacterial fermentation liquids were used at a ratio by volumeof 1:3 (v:v), the mixture showed the optimal physicochemical properties for oil-displacement. In addition, the mixture was stable under the conditions of various temperature (20–70 °C) and salinity (0–22%). When the polymer and bacteria were mixed together, it had no significant effects in the viscosity of polymer hydrolysis polyacrylamide and the viability of bacteria. The core oil-displacement test displayed that polymer hydrolysis polyacrylamide addition followed by the bacterial mixture injection could significantly enhance oil recovery. The recovery rate was increased by 15.01% and 10.03%, respectively, compared with the sole polymer hydrolysis polyacrylamide flooding and microbial flooding. Taken together, these results suggest that the strategy of polymer hydrolysis poly-acrylamide addition followed by microbial flooding is beneficial for improving oil recovery in heterogeneous low permeability reservoirs.
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14
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Ahmadi M, Niazi F, Jaafarzadeh N, Ghafari S, Jorfi S. Characterization of the biosurfactant produced by Pesudomonas areuginosa strain R 4 and its application for remediation pyrene-contaminated soils. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2021; 19:445-456. [PMID: 34150248 PMCID: PMC8172882 DOI: 10.1007/s40201-021-00617-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 01/18/2021] [Indexed: 05/09/2023]
Abstract
A biosurfactant producing strain was isolated and the rhamnolipid type biosurfactant was extracted for soil washing of a synthetically and naturally hydrocarbon-contaminated soil. Following the primary screening, Pseudomonas aeruginosa strain R 4 was selected and the effect of the carbon and nitrogen source and the salinity on biosurfactant production was studied. Of the best results were observed for glucose as a carbon source, NH4Cl as a nitrogen source and salinity of 1.4%. The produced biosurfactant was a glycolipid type biosurfactant and reduced the surface tension to 32.5 mN/m with a critical micelle concentration (CMC) of 50 mg/L and production yield of 90 mg/L. Using produced biosurfactant, a pyrene desorption rate of 82% was observed in selected conditions for initial pyrene concentration of 200 mg/L.
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Affiliation(s)
- Mehdi Ahmadi
- Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Department of Environmental Health Engineering, School of Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Forud Niazi
- Department of Environmental Health Engineering, School of Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Neematollah Jaafarzadeh
- Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Department of Environmental Health Engineering, School of Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Shokouh Ghafari
- Infectious Diseases Research Center, Birjand University of Medical Sciences, Birjand, Iran
| | - Sahand Jorfi
- Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Department of Environmental Health Engineering, School of Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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15
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Fernandes RN, Simiqueli AA, Vidigal MCTR, Minim VPR, Minim LA. Kinetic stability of the oil-in-water emulsions and dynamic interfacial properties of mixtures of sucrose esters and polysaccharides. Food Chem 2021; 357:129693. [PMID: 33882436 DOI: 10.1016/j.foodchem.2021.129693] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 03/16/2021] [Accepted: 03/20/2021] [Indexed: 10/21/2022]
Abstract
This article presents a study of the interfacial properties of oil-in-water emulsions containing sugar esters and polysaccharides. Sucrose fatty acid esters were synthesized using immobilized Candida antarctica lipase B. A yield of 53.4% was obtained using 2-methyl-2-butanol and 1:3 M ratio of sucrose:stearic acid. Equilibrium surface tension was 45 mN/m and low critical micellar concentration (CMC) value was obtained (ca. 10 mg/mL), characteristic of non-ionic surfactant. The interfacial properties of mixtures of sucrose esters and polysaccharides, at the oil-water interface were determined using a pendant drop tensiometer. Addition of polysaccharides increased the interfacial tension. Studies of interfacial viscoelasticity showed that the films were predominantly elastic. The presence of polysaccharides in emulsions resulted in flocculated droplets. All the emulsions presented great stability along 28 days with no creaming formation.
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Affiliation(s)
- Raquel Nunes Fernandes
- Food Technology Department, Federal University of Viçosa (UFV), P.H. Rolfs Avenue, Campus, 36570-900 Viçosa, MG, Brazil
| | - Andréa Alves Simiqueli
- Food Technology Department, Federal University of Viçosa (UFV), P.H. Rolfs Avenue, Campus, 36570-900 Viçosa, MG, Brazil
| | | | - Valéria Paula Rodrigues Minim
- Food Technology Department, Federal University of Viçosa (UFV), P.H. Rolfs Avenue, Campus, 36570-900 Viçosa, MG, Brazil
| | - Luis Antonio Minim
- Food Technology Department, Federal University of Viçosa (UFV), P.H. Rolfs Avenue, Campus, 36570-900 Viçosa, MG, Brazil.
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16
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Sun W, Zhu B, Yang F, Dai M, Sehar S, Peng C, Ali I, Naz I. Optimization of biosurfactant production from Pseudomonas sp. CQ2 and its application for remediation of heavy metal contaminated soil. CHEMOSPHERE 2021; 265:129090. [PMID: 33293052 DOI: 10.1016/j.chemosphere.2020.129090] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 11/21/2020] [Accepted: 11/23/2020] [Indexed: 06/12/2023]
Abstract
The present study was conducted to enhance the biosurfactant production yield of Pseudomonas sp. CQ2 isolated from the Chongqing oilfield (China). Besides, the capability of biosurfactant and underlying mechanism for remediation of heavy metal contaminated soil was also investigated. Our results suggested that maximum biosurfactant production (40.7 g/L) was attained at 35 °C by using soybean oil and ammonium nitrate as carbon and nitrogen sources with pH 7, rotational speed of 175 rpm and inoculation ratio of 3%). The removal efficiencies of 78.7, 65.7 and 56.9% for Cd, Cu and Pb respectively were achieved at optimized bioleaching conditions (pH: 11, soil/solution ratio: 30:1 and non-sterilized soil), comparative tests between common chemical surfactants (SDS, Tween-80) and biosurfactants demonstrated the larger removal capacity of biosurfactants. Through SEM-EDX, it was found that the granular material disappeared, the content of Cd, Cu and Pb decreased significantly, and the soil surface became smooth with hole formation after soil washing following bioleaching. ATR-FTIR results showed that the carboxyl functional groups in biosurfactants could chelate heavy metals. These results indicated that biosurfactants from Pseudomonas sp. CQ2 could effectively eliminate Cd, Cu, and Pb from soil.
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Affiliation(s)
- Wuyang Sun
- School of Petrochemical Engineering & Environment, Zhejiang Ocean University, Zhoushan 316022, Zhejiang.
| | - Baikang Zhu
- School of Petrochemical Engineering & Environment, Zhejiang Ocean University, Zhoushan 316022, Zhejiang.
| | - Fei Yang
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China.
| | - Min Dai
- School of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing, 526061, China.
| | - Shama Sehar
- Department of Biology, College of Science, University of Bahrain, PO Box 32038, Sakhir, Bahrain.
| | - Changsheng Peng
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China; School of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing, 526061, China.
| | - Imran Ali
- Department of Environmental Science and Engineering, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China; Key Laboratory of Optoelectronic Devices and Systems, College of Physics and Optoelectronic Engineering, Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen, 518060, China.
| | - Iffat Naz
- Department of Biology, Deanship of Educational Services, Qassim University, Buraidah, 51452, Saudi Arabia.
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17
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Kłosowska-Chomiczewska IE, Kotewicz-Siudowska A, Artichowicz W, Macierzanka A, Głowacz-Różyńska A, Szumała P, Mędrzycka K, Hallmann E, Karpenko E, Jungnickel C. Towards Rational Biosurfactant Design-Predicting Solubilization in Rhamnolipid Solutions. Molecules 2021; 26:molecules26030534. [PMID: 33498574 PMCID: PMC7864340 DOI: 10.3390/molecules26030534] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 12/29/2020] [Accepted: 01/15/2021] [Indexed: 12/18/2022] Open
Abstract
The efficiency of micellar solubilization is dictated inter alia by the properties of the solubilizate, the type of surfactant, and environmental conditions of the process. We, therefore, hypothesized that using the descriptors of the aforementioned features we can predict the solubilization efficiency, expressed as molar solubilization ratio (MSR). In other words, we aimed at creating a model to find the optimal surfactant and environmental conditions in order to solubilize the substance of interest (oil, drug, etc.). We focused specifically on the solubilization in biosurfactant solutions. We collected data from literature covering the last 38 years and supplemented them with our experimental data for different biosurfactant preparations. Evolutionary algorithm (EA) and kernel support vector machines (KSVM) were used to create predictive relationships. The descriptors of biosurfactant (logPBS, measure of purity), solubilizate (logPsol, molecular volume), and descriptors of conditions of the measurement (T and pH) were used for modelling. We have shown that the MSR can be successfully predicted using EAs, with a mean R2
val of 0.773 ± 0.052. The parameters influencing the solubilization efficiency were ranked upon their significance. This represents the first attempt in literature to predict the MSR with the MSR calculator delivered as a result of our research.
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Affiliation(s)
- Ilona E. Kłosowska-Chomiczewska
- Department of Colloid and Lipid Science, Faculty of Chemistry, Gdańsk University of Technology, Narutowicza St. 11/12, 80-233 Gdańsk, Poland; (A.K.-S.); (A.M.); (A.G.-R.); (P.S.); (K.M.); (E.H.); (C.J.)
- Correspondence: ; Tel.: +48-58-347-1151
| | - Adrianna Kotewicz-Siudowska
- Department of Colloid and Lipid Science, Faculty of Chemistry, Gdańsk University of Technology, Narutowicza St. 11/12, 80-233 Gdańsk, Poland; (A.K.-S.); (A.M.); (A.G.-R.); (P.S.); (K.M.); (E.H.); (C.J.)
| | - Wojciech Artichowicz
- Department of Hydraulic Engineering, Faculty of Civil and Environmental Engineering, Gdańsk University of Technology, Narutowicza St. 11/12, 80-233 Gdańsk, Poland;
| | - Adam Macierzanka
- Department of Colloid and Lipid Science, Faculty of Chemistry, Gdańsk University of Technology, Narutowicza St. 11/12, 80-233 Gdańsk, Poland; (A.K.-S.); (A.M.); (A.G.-R.); (P.S.); (K.M.); (E.H.); (C.J.)
| | - Agnieszka Głowacz-Różyńska
- Department of Colloid and Lipid Science, Faculty of Chemistry, Gdańsk University of Technology, Narutowicza St. 11/12, 80-233 Gdańsk, Poland; (A.K.-S.); (A.M.); (A.G.-R.); (P.S.); (K.M.); (E.H.); (C.J.)
| | - Patrycja Szumała
- Department of Colloid and Lipid Science, Faculty of Chemistry, Gdańsk University of Technology, Narutowicza St. 11/12, 80-233 Gdańsk, Poland; (A.K.-S.); (A.M.); (A.G.-R.); (P.S.); (K.M.); (E.H.); (C.J.)
| | - Krystyna Mędrzycka
- Department of Colloid and Lipid Science, Faculty of Chemistry, Gdańsk University of Technology, Narutowicza St. 11/12, 80-233 Gdańsk, Poland; (A.K.-S.); (A.M.); (A.G.-R.); (P.S.); (K.M.); (E.H.); (C.J.)
| | - Elżbieta Hallmann
- Department of Colloid and Lipid Science, Faculty of Chemistry, Gdańsk University of Technology, Narutowicza St. 11/12, 80-233 Gdańsk, Poland; (A.K.-S.); (A.M.); (A.G.-R.); (P.S.); (K.M.); (E.H.); (C.J.)
| | - Elena Karpenko
- Department of Physical Chemistry of Fossil Fuels InPOCC, National Academy of Sciences of Ukraine, 3a Naukova St., 79053 Lviv, Ukraine;
| | - Christian Jungnickel
- Department of Colloid and Lipid Science, Faculty of Chemistry, Gdańsk University of Technology, Narutowicza St. 11/12, 80-233 Gdańsk, Poland; (A.K.-S.); (A.M.); (A.G.-R.); (P.S.); (K.M.); (E.H.); (C.J.)
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18
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Eslami P, Hajfarajollah H, Bazsefidpar S. Recent advancements in the production of rhamnolipid biosurfactants by Pseudomonas aeruginosa. RSC Adv 2020; 10:34014-34032. [PMID: 35519061 PMCID: PMC9056861 DOI: 10.1039/d0ra04953k] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 08/24/2020] [Indexed: 01/10/2023] Open
Abstract
Rhamnolipid (RL) biosurfactant which is produced by Pseudomonas species is one of the most effective surface-active agents investigated in the literature. Over the years, many efforts have been made and an array of techniques has been developed for the isolation of RL produced strains as well as RL homolog characterization. Reports show that RL productivity by the best-known producer, Pseudomonas aeruginosa, is very diverse, from less than 1 gr/l to more than 200 g L-1. There are some major parameters that can affect RL productivity. These are culture conditions, medium composition, the mode of operation (batch, fed-batch and continuous), bioengineering/gene manipulation and finally extraction methods. The present paper seeks to provide a comprehensive overview on the production of rhamnolipid biosurfactant by different species of Pseudomonas bacteria. In addition, we have extensively reviewed their potential for possible future applications.
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Affiliation(s)
- Parisa Eslami
- Amirkabir University of Technology, Chemical Engineering Department Iran
| | - Hamidreza Hajfarajollah
- Amirkabir University of Technology, Chemical Engineering Department Iran
- Chemistry and Chemical Engineering Research Center of Iran, Chemical Engineering Department Iran +98 2122734406
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19
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Biosurfactant Production and its Role in Candida albicans Biofilm Inhibition. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2020. [DOI: 10.22207/jpam.14.2.30] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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20
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Haloi S, Sarmah S, Gogoi SB, Medhi T. Characterization of Pseudomonas sp. TMB2 produced rhamnolipids for ex-situ microbial enhanced oil recovery. 3 Biotech 2020; 10:120. [PMID: 32117681 PMCID: PMC7024075 DOI: 10.1007/s13205-020-2094-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 01/23/2020] [Indexed: 10/25/2022] Open
Abstract
The present study describes the ex-situ production of a biosurfactant by Pseudomonas sp. TMB2 for its potential application in enhancing oil recovery. The physicochemical parameters such as temperature and pH were optimized as 30 °C and 7.2, respectively, for their maximum laboratory scale production in mineral salt medium containing glucose and sodium nitrate as best carbon and nitrogen sources. The surface activity of the resulting culture broth was declined from 71.9 to 33.4 mN/m having the highest emulsification activity against kerosene oil. The extracted biosurfactant was characterized chemically as glycolipid by Fourier-transform infrared spectroscopy and 1H and 13C nuclear magnetic resonance spectroscopy analyses. The presence of mono-rhamnolipids (Rha-C8:2, Rha-C10, Rha-C10-C10, and Rha-C10-C12:1) and di-rhamnolipids (Rha-Rha-C12-C10, Rha-Rha-C10-C10, and Rha-Rha-C10-C12:1) congeners were determined by liquid chromatography-mass spectroscopy analysis. The thermostability and degradation pattern of the candidate biosurfactant were tested by thermogravimetry assay and differential scanning calorimetry studies for its suitability in ex-situ oil recovery technology. The rhamnolipid based slug, prepared in 4000 ppm brine solution reduced the interfacial tension between liquid paraffin oil and aqueous solution to 0.8 mN/m from 39.1 mN/m at critical micelle concentration of 120 mg/L. The flooding test was performed using conventional core plugs belonging to oil producing horizons of Upper Assam Basin and recovered 16.7% of original oil in place after secondary brine flooding with microscopic displacement efficiency of 27.11%.
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Affiliation(s)
- Saurav Haloi
- Applied Biochemistry Lab, Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur, India
| | - Shilpi Sarmah
- Department of Petroleum Technology, Dibrugarh University, Dibrugarh, India
| | - Subrata B. Gogoi
- Department of Petroleum Technology, Dibrugarh University, Dibrugarh, India
| | - Tapas Medhi
- Applied Biochemistry Lab, Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur, India
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21
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Sharma P, Sharma N. Microbial Biosurfactants-an Ecofriendly Boon to Industries for Green Revolution. Recent Pat Biotechnol 2019; 14:169-183. [PMID: 31830890 DOI: 10.2174/1872208313666191212094628] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 09/23/2019] [Accepted: 11/19/2019] [Indexed: 11/22/2022]
Abstract
Biosurfactants have a biological origin, and are widely known as surface active agents. Different classes of biosurfactant have significant importance in both the biotechnological and microbiological arena. Pseudomonas aeruginosa, Bacillus subtilis and Candida sp. are important classes of microorganisms that are highly investigated for the production of rhamnolipids (RLs) biosurfactants. Rhamnolipids have unique surface activity and have gained interest in various industrial applications. Due to their high biodegradability, renewability and functionally maintenance at extreme conditions, microbial biosurfactants are more advantageous than chemical-based biosurfactants. Biosurfactants produced by microorganisms are a potential candidate for biodegradation, environmental cleanup of pollutants and also play a role in the heavy metal removal of metallurgical industries also many patents have been filed. Therefore, greater attention has been paid to biosurfactants and identifying their potential applications for further studies.
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Affiliation(s)
- Pushpinder Sharma
- Microbiology Section, Department of Basic Sciences, Dr. Y.S. Parmar University of Horticulture and Forestry, Nauni-Solan, Himachal Pradesh, India
| | - Nivedita Sharma
- Microbiology Section, Department of Basic Sciences, Dr. Y.S. Parmar University of Horticulture and Forestry, Nauni-Solan, Himachal Pradesh, India
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22
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Jimoh AA, Lin J. Biosurfactant: A new frontier for greener technology and environmental sustainability. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 184:109607. [PMID: 31505408 DOI: 10.1016/j.ecoenv.2019.109607] [Citation(s) in RCA: 108] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 08/13/2019] [Accepted: 08/22/2019] [Indexed: 05/26/2023]
Abstract
Petroleum hydrocarbons, oil, heavy metals pollution is becoming additional severe problem due to the growing call for crude oil and crude oil products related products in several fields of application. Such pollution have fascinated much considerations and attractions as it leads to ecological damages in both marines, aquatic and terrestrial ecosystems. Thus, different techniques including chemical surfactants and complex technologies have been proposed for their clean up from the environment, which in turn has detrimental effects on the environment. As of late, biosurfactant compounds have added much deliberation since they are considered as a reasonable option and eco-accommodating materials for remediation technology. The present society is confronting a few difficulties of usage, authorizing ecological protection and environmental change for the next generations. Biosurfactants hold the special property of minimizing and reducing the interfacial tension of liquids. Such features endure biosurfactants to afford a major part in emulsification, de-emulsification, biodegradability, foam formation, washing performance, surface activity, and detergent formulation, which have potential applications in the diverse industrial set-up. Conversations on cost-effective technologies, renewable materials, novel synthesis, downstream, upstream, emerging characterization techniques, molecular, and genetical engineering are substantial to produce biosurfactant of quality and quantity. Therefore, greater attention is being paid to biosurfactant production by identifying their environmental, and biotechnological applications. Be that as it may, the extravagant cost drew in with biosurfactants biotechnological synthesis and recovery can hamper their application in those areas. Notwithstanding these costs, biosurfactants can be used as these parts shows outstandingly high benefits that can at present beat the expenses incurred in the initial purification and downstream processes. Biosurfactant production by microorganisms is relatively considered one of the crucial know-how for improvement, growth, advancement, and environmental sustainability of the 21st century. There is a developing conversation around environmental safety and the significant role that biosurfactants will progressively play soon, for instance, the use of renewable by-products as substrates, potential reduction, re-use and recycling of waste and waste products. The review confers the usefulness of biosurfactants in the removal of environmental contaminants and, consequently, expanding environmental safety and drive towards greener technology.
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Affiliation(s)
- Abdullahi Adekilekun Jimoh
- Discipline of Microbiology, School of Life Sciences, University of KwaZulu-Natal (Westville), Private Bag X 54001, Durban, South Africa.
| | - Johnson Lin
- Discipline of Microbiology, School of Life Sciences, University of KwaZulu-Natal (Westville), Private Bag X 54001, Durban, South Africa
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23
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Pourfadakari S, Ahmadi M, Jaafarzadeh N, Takdastan A, Neisi AA, Ghafari S, Jorfi S. Remediation of PAHs contaminated soil using a sequence of soil washing with biosurfactant produced by Pseudomonas aeruginosa strain PF2 and electrokinetic oxidation of desorbed solution, effect of electrode modification with Fe 3O 4 nanoparticles. JOURNAL OF HAZARDOUS MATERIALS 2019; 379:120839. [PMID: 31279313 DOI: 10.1016/j.jhazmat.2019.120839] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 04/13/2019] [Accepted: 06/26/2019] [Indexed: 06/09/2023]
Abstract
This work aimed to investigate the performance of biosurfactant, produced by a halotolerant bacterial strain, Pseudomonas aeruginosa PF2, for desorption of PAHs from soil, followed by electrokinetic oxidation of the desorbed solution using Magnetite Nanoparticles Modified Graphite (MNMG). Pyrene (PYR), anthracene (ANT) and phenanthrene (PHE) were used as contamination model. Produced and extracted biosurfactant was characterized as rhamnolipid with Critical Micelle Concentration (CMC) of 60 mg/L and emulsification index (E24) value of 60.2% for n-hexadecane, 58.4% for n-heptane and 55.6% for n-Hexane, respectively. Results of LC-MS/MS analysis indicated the presence of seven major peaks at m/z of 677.5, 531.1, 649.3, 528.9, 475.1, 359 and 503.2, which corresponded to the deprotonated molecules of RhaRhaC12C10, RhaC12C10, RhaRhaC10C10, RhaC12:1C10, RhaC8C10, Rha-C12:2 and RhaC10C10, respectively. The maximum desorption of PAHs was derived at pH value of 6, CMC of 3 and contact time of 24 h. Modification of graphite electrode enhanced the PAH degradation significantly. In electrokinetic oxidation of desorbed solution, the best results were observed at pH value of 5, contact time of 6 h, voltage of 3 V and electrolyte concentration of 25 mg/L, with the average removal efficiency of higher than 99% for all studied PAHs.
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Affiliation(s)
- Sudabeh Pourfadakari
- Student Research Committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; Department of Environmental Health Engineering, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mehdi Ahmadi
- Department of Environmental Health Engineering, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Neematollah Jaafarzadeh
- Department of Environmental Health Engineering, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Afshin Takdastan
- Department of Environmental Health Engineering, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Abd Alkazem Neisi
- Department of Environmental Health Engineering, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Shokouh Ghafari
- Infectious Diseases Research Center, Birjand University of Medical Sciences, Birjand, Iran
| | - Sahand Jorfi
- Department of Environmental Health Engineering, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
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Simultaneous Application of Biosurfactant and Bioaugmentation with Rhamnolipid-Producing Shewanella for Enhanced Bioremediation of Oil-Polluted Soil. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9183773] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In the present study, a combined treatment strategy involving the addition of rhamnolipid, rhamnolipid-producing bacteria (Shewanella sp. BS4) and a native soil microbial community for the remediation of hydrocarbon-contaminated soil under pilot-scale conditions was adopted. The isolate BS4 (rhl+), demonstrating the highest emulsification activity and surface tension reduction efficiency, was identified based on 16 S rDNA sequencing as Shewanella sp. strain. Growth conditions for rhamnolipid production were optimized based on Central Composite Design (CCD) as 2.9% crude oil, a 54 × 106 CFU g−1 inoculation load of soil, a temperature of 30.5 °C, and a pH of 6.7. In situ bioremediation experiments, conducted using hydrocarbon-contaminated soil treated with the combination of rhamnolipid and rhamnolipid-producing bacteria, showed that the inoculated Shewanella sp. BS4, along with the indigenous soil microbial community, supported the highest hydrocarbon-degrading bacterial population and soil respiration activity, and this treatment resulted in 75.8% hydrocarbon removal efficiency, which was higher compared to contaminated soil devoid of any treatment.
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Ram G, Melvin Joe M, Devraj S, Benson A. Rhamnolipid production using Shewanella seohaensis BS18 and evaluation of its efficiency along with phytoremediation and bioaugmentation for bioremediation of hydrocarbon contaminated soils. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2019; 21:1375-1383. [PMID: 31359777 DOI: 10.1080/15226514.2019.1633254] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
This study reports the combined use of a rhamnolipid type biosurfactant (BS) along with phytoremediation and bioaugmentation (BA) for bioremediation of hydrocarbon-contaminated soils. Bacterial isolates obtained from hydrocarbon contaminated soil were screened for rhamnolipid production and isolate BS18, identified as Shewanella seohaensis, was selected for bioremediation experiments. Growth of BS18 in mineral salt medium (MSM) with diesel oil as the carbon source showed a maximum biomass of 8.2 g L-1, rhamnolipid production of 2.2 mg g-1 cell dry weight, surface tension reduction of 28.6 mN/m and emulsification potential (EI24%) of 65.6. Characterization of rhamnolipid based on Fourier transmittance infrared (FTIR) analysis confirmed the presence of OH, CH2/CH3, C=O, and COO stretching vibrations, respectively, which are distinctive features of rhamnolipid type BSs. In bioremediation experiments, the lowest hydrocarbon concentration of 2.1 mg g-1 of soil for non-sterilized soil and 4.3 mg g-1 of soil for sterilized soil was recorded in the combined application of rhamnolipid, phytoremediation, and BA. This treatment also yielded the highest hydrocarbon degrading bacterial population (6.4 Log Cfu g-1 of soil), highest plant biomass (8.3 g dry weight plant-1), and the highest hydrocarbon uptake (512.3 mg Kg-1 of plant).
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Affiliation(s)
- Gomathi Ram
- Department of Microbiology, School of Life Sciences, VELS University, Chennai, India
| | - Manoharan Melvin Joe
- Department of Microbiology, School of Life Sciences, VELS University, Chennai, India
- Department of Industrial Microbiology, Sam Higginbottom University of Agriculture, Technology and Sciences, Allahabad, India
| | - Shalini Devraj
- Department of Microbiology, School of Life Sciences, VELS University, Chennai, India
| | - Abitha Benson
- School of Biosciences and Technology, VIT University, Vellore, India
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Christopher FC, Ponnusamy SK, Ganesan JJ, Ramamurthy R. Investigating the prospects of bacterial biosurfactants for metal nanoparticle synthesis - a comprehensive review. IET Nanobiotechnol 2019; 13:243-249. [PMID: 31053685 PMCID: PMC8676648 DOI: 10.1049/iet-nbt.2018.5184] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 12/04/2018] [Accepted: 12/16/2018] [Indexed: 11/04/2023] Open
Abstract
Establishing biological synthesis of nanoparticles is increasing nowadays in the field of nanotechnology. The search for an optimal source with durability, stability, capacity to withstand higher environmental conditions with excellent characteristics is yet to meet. Consequently, there is need to create an eco-friendly strategy for metal nanoparticle synthesis. One approach investigated in this review is the use of biosurfactants to enhance the synthesis biologically. In comparison with the other technologies, biosurfactants are less toxic and exhibit higher properties. This method is different from the conventional practice like physical and chemical methods. Several research studies represented that the biosurfactant influences the production of nanoparticles about 2-50 nm. In this manner, the research towards the biosurfactant has raised. This review also addressed the feasibility of biosurfactant and their benefits in the synthesis of metallic nanoparticles. The findings from this review can recommend a conceivable use of biosurfactant as a source for metal nanoparticle synthesis.
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Affiliation(s)
| | - Senthil Kumar Ponnusamy
- SSN-Centre for Radiation, Environmental Science and Technology (SSN-CREST), SSN College of Engineering, Chennai 603110, India.
| | - Janet Joshiba Ganesan
- Department of Chemical Engineering, SSN College of Engineering, Chennai 603110, India
| | - Racchana Ramamurthy
- Department of Chemical Engineering, SSN College of Engineering, Chennai 603110, India
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Haloi S, Medhi T. Optimization and characterization of a glycolipid produced by Achromobacter
sp. to use in petroleum industries. J Basic Microbiol 2019; 59:238-248. [DOI: 10.1002/jobm.201800298] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 10/24/2018] [Accepted: 11/10/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Saurav Haloi
- Applied Biochemistry Lab; Department of Molecular Biology and Biotechnology; Tezpur University; Napaam, Sonitpur Assam India
| | - Tapas Medhi
- Applied Biochemistry Lab; Department of Molecular Biology and Biotechnology; Tezpur University; Napaam, Sonitpur Assam India
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Bedoya J, Dealis M, Silva C, Niekawa E, Navarro M, Simionato A, Modolon F, Chryssafidis A, Andrade G. Enhanced production of target bioactive metabolites produced by Pseudomonas Aeruginosa LV strain. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2019. [DOI: 10.1016/j.bcab.2019.01.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Bedoya J, Dealis M, Silva C, Niekawa E, Navarro M, Simionato A, Modolon F, Chryssafidis A, Andrade G. Enhanced production of target bioactive metabolites produced by Pseudomonas aeruginosa LV strain. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2019. [DOI: 10.1016/j.bcab.2018.12.024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Zhao F, Jiang H, Sun H, Liu C, Han S, Zhang Y. Production of rhamnolipids with different proportions of mono-rhamnolipids using crude glycerol and a comparison of their application potential for oil recovery from oily sludge. RSC Adv 2019; 9:2885-2891. [PMID: 35518985 PMCID: PMC9059948 DOI: 10.1039/c8ra09351b] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 01/07/2019] [Indexed: 12/02/2022] Open
Abstract
The use of efficient green cleaning agents, such as biosurfactants, is important in oil sludge treatment. Enhanced oil recovery from oily sludge by different rhamnolipids was comparatively evaluated. Using crude glycerol, the wild-type strain Pseudomonas aeruginosa SG and the recombinant strains P. aeruginosa PrhlAB and P. stutzeri Rhl produced 1.98 g L−1, 2.87 g L−1 and 0.87 g L−1 of rhamnolipids, respectively. The three bacterial strains produced different rhamnolipid mixtures under the same conditions. The proportions of mono-rhamnolipids in the three rhamnolipid products were 55.92%, 94.92% and 100%, respectively. These rhamnolipid products also possessed different bioactivities. Emulsifying activity became higher as the proportion of mono-rhamnolipids increased. The three rhamnolipid products were stable at temperatures lower than 121 °C, pH values from 5–11 and NaCl concentrations from 0–15%. All three rhamnolipid products could recover oil from oily sludge, but oil recovery efficiency was positively related to the proportion of mono-rhamnolipids. Mono-rhamnolipids produced by the recombinant strain Rhl exhibited the best oil recovery efficiency (53.81%). The results reveal that mono-rhamnolipids are the most promising for oil recovery from oily sludge. Oil recovery from oily sludge is positively related to the proportion of mono-rhamnolipids.![]()
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Affiliation(s)
- Feng Zhao
- CAS Key Laboratory of Pollution Ecology and Environmental Engineering
- Institute of Applied Ecology
- Chinese Academy of Sciences (CAS)
- Shenyang
- China
| | - Hao Jiang
- Heilongjiang Weikaier Biotechnology Company Limited
- Harbin
- China
- Harbin Hongda Construction Development Group
- Harbin
| | - Huichun Sun
- CAS Key Laboratory of Pollution Ecology and Environmental Engineering
- Institute of Applied Ecology
- Chinese Academy of Sciences (CAS)
- Shenyang
- China
| | - Chang Liu
- School of Environmental Science
- Liaoning University
- Shenyang 110036
- China
| | - Siqin Han
- CAS Key Laboratory of Pollution Ecology and Environmental Engineering
- Institute of Applied Ecology
- Chinese Academy of Sciences (CAS)
- Shenyang
- China
| | - Ying Zhang
- CAS Key Laboratory of Pollution Ecology and Environmental Engineering
- Institute of Applied Ecology
- Chinese Academy of Sciences (CAS)
- Shenyang
- China
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Bazsefidpar S, Mokhtarani B, Panahi R, Hajfarajollah H. Overproduction of rhamnolipid by fed-batch cultivation of Pseudomonas aeruginosa in a lab-scale fermenter under tight DO control. Biodegradation 2019; 30:59-69. [PMID: 30600422 DOI: 10.1007/s10532-018-09866-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 12/22/2018] [Indexed: 10/27/2022]
Abstract
Rhamnolipids are one of the most well-known classes of biosurfactants having wide applications in various industries due to low toxicity, high biodegradability, and environmentally friendly. Dissolved oxygen (DO) concentration has the crucial effect on rhamnolipids production, particularly through fed-batch cultivation. In this study, the effect of different levels of DO concentrations on rhamnolipid production by Pseudomonas aeruginosa in both batch and fed-batch fermentation was investigated in a lab-scale fermenter under precise DO control. A maximal rhamnolipid production of 22.5 g/l was obtained at a DO concentration of 40% in batch fermentation. In order to achieve the high rhamnolipid production, a fed-batch operation under tight DO control of 40% was conducted. As a result, the overall rhamnolipid production and productivity reached to 240 g/l and 0.9 (g/l h), corresponding to a 10.7 and 4.8-fold improvement compared to the batch experiments. The high level of rhamnolipid production via the fed-batch cultivation can be attributed to both DO concentration and the feeding strategy. This achievement is promising for the production of rhamnolipid in industrial scale.
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Affiliation(s)
- Shayesteh Bazsefidpar
- Chemistry and Chemical Engineering Research Center of Iran, P.O. Box 14335-186, Tehran, Iran
| | - Babak Mokhtarani
- Chemistry and Chemical Engineering Research Center of Iran, P.O. Box 14335-186, Tehran, Iran.
| | - Reza Panahi
- Chemistry and Chemical Engineering Research Center of Iran, P.O. Box 14335-186, Tehran, Iran
| | - Hamidreza Hajfarajollah
- Chemistry and Chemical Engineering Research Center of Iran, P.O. Box 14335-186, Tehran, Iran
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Production of new rhamnolipids Rha C16-C16 by Burkholderia sp. through biodegradation of diesel and biodiesel. BENI-SUEF UNIVERSITY JOURNAL OF BASIC AND APPLIED SCIENCES 2018. [DOI: 10.1016/j.bjbas.2018.05.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Abstract
Background Rhamnolipids are the most extensively studied biosurfactants and has been successfully used in various areas from bioremediation to industrial fields. Rhamnolipids structural composition decide their physicochemical properties. Different physicochemical properties influence their application potential. Rhamnolipids can be produced at both aerobic conditions and anaerobic conditions by Pseudomonas aeruginosa. This study aims to evaluate the oxygen effects on the rhamnolipids yield, structural composition, physicochemical properties and the rhl-genes expression in P. aeruginosa SG. Results will guide researchers to regulate microbial cells to synthesize rhamnolipids with different activity according to diverse application requirements. Results Quantitative real-time PCR analysis revealed that rhlAB genes were down-regulated under anaerobic conditions. Therefore, strain P. aeruginosa SG anaerobically produced less rhamnolipids (0.68 g/L) than that (11.65 g/L) under aerobic conditions when grown in media containing glycerol and nitrate. HPLC–MS analysis showed that aerobically produced rhamnolipids mainly contained Rha-C8-C10, Rha–Rha-C10-C12:1 and Rha–Rha-C8-C10; anaerobically produced rhamnolipids mainly contained Rha-C10-C12 and Rha-C10-C10. Anaerobically produced rhamnolipids contained more mono-rhamnolipids (94.7%) than that (54.8%) in aerobically produced rhamnolipids. rhlC gene was also down-regulated under anaerobic conditions, catalyzing less mono-rhamnolipids to form di-rhamnolipids. Aerobically produced rhamnolipids decreased air–water surface tension (ST) from 72.2 to 27.9 mN/m with critical micelle concentration (CMC) of 60 mg/L; anaerobically produced rhamnolipids reduced ST to 33.1 mN/m with CMC of 80 mg/L. Anaerobically produced rhamnolipids emulsified crude oil with EI24 = 80.3%, and aerobically produced rhamnolipids emulsified crude oil with EI24 = 62.3%. Both two rhamnolipids products retained surface activity (ST < 35.0 mN/m) and emulsifying activity (EI24 > 60.0%) under temperatures (4–121 °C), pH values (4–10) and NaCl concentrations less than 90 g/L. Conclusions Oxygen affected the rhl-genes expression in P. aeruginosa, thus altering the rhamnolipids yield, structural composition and physicochemical properties. Rhamnolipids produced at aerobic or anaerobic conditions was structurally distinct. Two rhamnolipids products had different application potential in diverse biotechnologies. Although both rhamnolipids products were thermo-stable and halo-tolerant, aerobically produced rhamnolipids possessed better surface activity, implying its well wetting activity and desorption property; anaerobically produced rhamnolipids exhibited better emulsifying activity, indicating its applicability for enhanced oil recovery and bioremediation of petroleum pollution.
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Affiliation(s)
- Feng Zhao
- CAS Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences (CAS), Shenyang, 110016, Liaoning, China.
| | - Rongjiu Shi
- CAS Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences (CAS), Shenyang, 110016, Liaoning, China
| | - Fang Ma
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Siqin Han
- CAS Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences (CAS), Shenyang, 110016, Liaoning, China
| | - Ying Zhang
- CAS Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences (CAS), Shenyang, 110016, Liaoning, China.
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Liu G, Zhong H, Yang X, Liu Y, Shao B, Liu Z. Advances in applications of rhamnolipids biosurfactant in environmental remediation: A review. Biotechnol Bioeng 2018; 115:796-814. [PMID: 29240227 DOI: 10.1002/bit.26517] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 10/05/2017] [Accepted: 12/04/2017] [Indexed: 12/30/2022]
Abstract
The objective of this review is to provide a comprehensive overview of the advances in the applications of rhamnolipids biosurfactants in soil and ground water remediation for removal of petroleum hydrocarbon and heavy metal contaminants. The properties of rhamnolipids associated with the contaminant removal, that is, solubilization, emulsification, dispersion, foaming, wetting, complexation, and the ability to modify bacterial cell surface properties, were reviewed in the first place. Then current remediation technologies with integration of rhamnolipid were summarized, and the effects and mechanisms for rhamnolipid to facilitate contaminant removal for these technologies were discussed. Finally rhamnolipid-based methods for remediation of the sites co-contaminated by petroleum hydrocarbons and heavy metals were presented and discussed. The review is expected to enhance our understanding on environmental aspects of rhamnolipid and provide some important information to guide the extending use of this fascinating chemical in remediation applications.
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Affiliation(s)
- Guansheng Liu
- State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, Hubei, China.,School of Water Resources and Hydropower Engineering, Wuhan University, Wuhan, Hubei, China
| | - Hua Zhong
- State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, Hubei, China.,School of Water Resources and Hydropower Engineering, Wuhan University, Wuhan, Hubei, China
| | - Xin Yang
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, China
| | - Yang Liu
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, China
| | - Binbin Shao
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, China
| | - Zhifeng Liu
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, China
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Sharma R, Singh J, Verma N. Optimization of rhamnolipid production from Pseudomonas aeruginosa PBS towards application for microbial enhanced oil recovery. 3 Biotech 2018; 8:20. [PMID: 29276658 DOI: 10.1007/s13205-017-1022-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2017] [Accepted: 12/04/2017] [Indexed: 01/16/2023] Open
Abstract
The present work reveals the potential of biosurfactant producing P. aeruginosa PBS for microbial enhanced oil recovery (MEOR). The biosurfactant production medium and culture conditions were optimized using response surface methodology. The optimization of media components and process parameters was consecutively executed in two sets of experimental runs designed by central composite rotatable design (CCRD). The maximum biosurfactant yield was attained with 2% fresh inoculum of P. aeruginosa PBS in minimal salt medium (pH 7), possessing 2.17% sodium citrate as C-source and 0.5% yeast extract as N-source, after 48 h upon incubation at 30 °C/150 rpm. Under optimum conditions, biosurfactant yield was increased more than threefold and turned out to be 2.65 g/L as compared to 0.82 g/L under previous conditions. The biosurfactant was characterized as a glycolipid comprising of four rhamnolipid homologs (RhaRhaC10C10, RhaRhaC8C10, RhaRhaC12C10/RhaRhaC10C12, RhaC10C10) by thin layer chromatography, fourier transform infrared spectroscopy, nuclear magnetic resonance and mass spectrometry. The produced biosurfactant was highly efficient for oil recovery application showing extreme reduction in surface tension of medium (71.80 to 23.76 mN/m), immense hydrocarbons emulsification capacity (50-60%) and greater stability at wide range of temperature (4-100 °C) and pH (4-10) along with an excellent (56.18 ± 1.59%) additional oil recovery in sand-pack column lab test.
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Affiliation(s)
- Rajni Sharma
- Biosensor Technology Laboratory, Department of Biotechnology, Punjabi University, Patiala, Punjab 147002 India
| | - Jagdish Singh
- Department of Biotechnology, Mata Gujri College, Fatehgarh Sahib, Punjab 140406 India
| | - Neelam Verma
- Biosensor Technology Laboratory, Department of Biotechnology, Punjabi University, Patiala, Punjab 147002 India
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Shalini D, Benson A, Gomathi R, John Henry A, Jerritta S, Melvin Joe M. Isolation, characterization of glycolipid type biosurfactant from endophytic Acinetobacter sp. ACMS25 and evaluation of its biocontrol efficiency against Xanthomonas oryzae. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2017. [DOI: 10.1016/j.bcab.2017.07.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Ferhat S, Alouaoui R, Badis A, Moulai-Mostefa N. Production and characterization of biosurfactant by free and immobilized cells fromOchrobactrum intermediumisolated from the soil of southern Algeria with a view to environmental application. BIOTECHNOL BIOTEC EQ 2017. [DOI: 10.1080/13102818.2017.1309992] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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38
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Biosurfactant production by the hydrocarbon-degrading bacteria (HDB) Serratia marcescens : Optimization using central composite design (CCD). J IND ENG CHEM 2017. [DOI: 10.1016/j.jiec.2016.11.043] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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39
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Roberto AL, Rosileide FSA, Dayana MR, Helvia WCA, Vanessa PS, Galba MCT. Production and characterization of biosurfactant isolated from Candida glabrata using renewable substrates. ACTA ACUST UNITED AC 2017. [DOI: 10.5897/ajmr2016.8341] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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40
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Zhan Y, Wang Q, Chen C, Kim JB, Zhang H, Yoza BA, Li QX. Potential of wheat bran to promote indigenous microbial enhanced oil recovery. J Ind Microbiol Biotechnol 2017; 44:845-855. [PMID: 28190109 DOI: 10.1007/s10295-017-1909-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Accepted: 01/29/2017] [Indexed: 11/29/2022]
Abstract
Microbial enhanced oil recovery (MEOR) is an emerging oil extraction technology that utilizes microorganisms to facilitate recovery of crude oil in depleted petroleum reservoirs. In the present study, effects of wheat bran utilization were investigated on stimulation of indigenous MEOR. Biostimulation conditions were optimized with the response surface methodology. The co-application of wheat bran with KNO3 and NH4H2PO4 significantly promoted indigenous MEOR (IMEOR) and exhibited sequential aerobic (O-), facultative (An-) and anaerobic (A0-) metabolic stages. The surface tension of fermented broth decreased by approximately 35%, and the crude oil was highly emulsified. Microbial community structure varied largely among and in different IMEOR metabolic stages. Pseudomonas sp., Citrobacter sp., and uncultured Burkholderia sp. dominated the O-, An- and early A0-stages. Bacillus sp., Achromobacter sp., Rhizobiales sp., Alcaligenes sp. and Clostridium sp. dominated the later A0-stage. This study illustrated occurrences of microbial community succession driven by wheat bran stimulation and its industrial potential.
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Affiliation(s)
- Yali Zhan
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 102249, China
| | - Qinghong Wang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 102249, China
| | - Chunmao Chen
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 102249, China.,Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, Honolulu, HI, 96822, USA
| | - Jung Bong Kim
- Department of Agro-Food Resources, National Institute of Agricultural Sciences, Rural Development Administration, Jeonju, 55365, Republic of Korea
| | - Hongdan Zhang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 102249, China
| | - Brandon A Yoza
- Hawaii Natural Energy Institute, University of Hawaii at Manoa, Honolulu, HI, 96822, USA
| | - Qing X Li
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, Honolulu, HI, 96822, USA.
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41
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Kłosowska-Chomiczewska IE, Mędrzycka K, Hallmann E, Karpenko E, Pokynbroda T, Macierzanka A, Jungnickel C. Rhamnolipid CMC prediction. J Colloid Interface Sci 2016; 488:10-19. [PMID: 27816634 DOI: 10.1016/j.jcis.2016.10.055] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 10/20/2016] [Accepted: 10/20/2016] [Indexed: 12/22/2022]
Abstract
Relationships between the purity, pH, hydrophobicity (logKow) of the carbon substrate, and the critical micelle concentration (CMC) of rhamnolipid type biosurfactants (RL) were investigated using a quantitative structure-property relationship (QSPR) approach and are presented here for the first time. Measured and literature CMC values of 97 RLs, representing biosurfactants at different stages of purification, were considered. An arbitrary scale for RLs purity was proposed and used in the modelling. A modified evolutionary algorithm was used to create clusters of equations to optimally describe the relationship between CMC and logKow, pH and purity (the optimal equation had an R2 of 0.8366). It was found that hydrophobicity of the carbon substrate used for the biosynthesis of the RL had the most significant influence on the final CMC of the RL. Purity of the RLs was also found to have a significant impact, where generally the less pure the RL the higher the CMC. These results were in accordance with our experimental data. Therefore, our model equation may be used for controlling the biosynthesis of biosurfactants with properties targeted for specific applications.
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Affiliation(s)
- I E Kłosowska-Chomiczewska
- Department of Colloid and Lipid Science, Faculty of Chemistry, Gdansk University of Technology, Narutowicza St. 11/12, 80-233 Gdansk, Poland
| | - K Mędrzycka
- Department of Colloid and Lipid Science, Faculty of Chemistry, Gdansk University of Technology, Narutowicza St. 11/12, 80-233 Gdansk, Poland
| | - E Hallmann
- Department of Colloid and Lipid Science, Faculty of Chemistry, Gdansk University of Technology, Narutowicza St. 11/12, 80-233 Gdansk, Poland
| | - E Karpenko
- Department of Physical Chemistry of Fossil Fuels InPOCC, National Academy of Sciences of Ukraine, 3a Naukova St., Lviv 79053, Ukraine
| | - T Pokynbroda
- Department of Physical Chemistry of Fossil Fuels InPOCC, National Academy of Sciences of Ukraine, 3a Naukova St., Lviv 79053, Ukraine
| | - A Macierzanka
- Department of Colloid and Lipid Science, Faculty of Chemistry, Gdansk University of Technology, Narutowicza St. 11/12, 80-233 Gdansk, Poland
| | - C Jungnickel
- Department of Colloid and Lipid Science, Faculty of Chemistry, Gdansk University of Technology, Narutowicza St. 11/12, 80-233 Gdansk, Poland.
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42
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Velioglu Z, Urek RO. Physicochemical and structural characterization of biosurfactant produced by Pleurotus djamor in solid-state fermentation. BIOTECHNOL BIOPROC E 2016. [DOI: 10.1007/s12257-016-0139-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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43
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Priji P, Sajith S, Unni KN, Anderson RC, Benjamin S. Pseudomonas sp. BUP6, a novel isolate from Malabari goat produces an efficient rhamnolipid type biosurfactant. J Basic Microbiol 2016; 57:21-33. [PMID: 27400277 DOI: 10.1002/jobm.201600158] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 06/20/2016] [Indexed: 01/02/2023]
Abstract
This study describes the characteristics of a biosurfactant produced by Pseudomonas sp. BUP6, a rumen bacterium, and optimization of parameters required for its production. Initial screening of five parameters (pH, temperature, agitation, incubation, and substrate concentration) was carried out employing Plackett-Burman design, which reduced the number of parameters to 3 (pH, temperature, and incubation) according to their significance on the yield of biosurfactant. A suitable statistical model for the production of biosurfactant by Pseudomonas sp. BUP6 was established according to Box-Behnken design, which resulted in 11% increase (at pH 7, 35 °C, incubation 75 h) in the yield (2070 mg L-1 ) of biosurfactant. The biosurfactant was found stable at a wide range of pH (3-9) with 48 mg L-1 critical micelle concentration; and maintained over 90% of its emulsification ability even after boiling and in presence of sodium chloride (0.5%). The highest cell hydrophobicity (37%) and emulsification (69%) indices were determined with groundnut oil and kerosene, respectively. The biosurfactant was found to inhibit the growth and adhesion of E. coli and S. aureus significantly. From the phytotoxicity studies, the biosurfactant did not show any adverse effect on the germinating seeds of rice and green gram. The structural characterization of biosurfactant employing orcinol method, thin layer chromatography and FT-IR indicated that it is a rhamnolipid (glycolipid). Thus, Pseudomonas sp. BUP6, a novel isolate from Malabari goat is demonstrated as a producer of an efficient rhamnolipid type biosurfactant suitable for application in various industries.
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Affiliation(s)
- Prakasan Priji
- Enzyme Technology Laboratory, Biotechnology Division, Department of Botany, University of Calicut, Kerala, India
| | - Sreedharan Sajith
- Enzyme Technology Laboratory, Biotechnology Division, Department of Botany, University of Calicut, Kerala, India
| | - Kizhakkepowathial Nair Unni
- Enzyme Technology Laboratory, Biotechnology Division, Department of Botany, University of Calicut, Kerala, India
| | - Robin C Anderson
- United States Department of Agriculture, Agricultural Research Service, College Station, TX 77845, USA
| | - Sailas Benjamin
- Enzyme Technology Laboratory, Biotechnology Division, Department of Botany, University of Calicut, Kerala, India
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44
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Zhao F, Liang X, Ban Y, Han S, Zhang J, Zhang Y, Ma F. Comparison of Methods to Quantify Rhamnolipid and Optimization of Oil Spreading Method. TENSIDE SURFACT DET 2016. [DOI: 10.3139/113.110429] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
A rapid and reliable method to quantify rhamnolipid is indispensable to study and evaluate rhamnolipid-producing bacteria. Five methods were attempted to quantify rhamnolipid in bacteria culture. The oil spreading method better predicted the rhamnolipid concentration and is simpler than the other methods. The potential influencing factors (temperature, pH, salinity, metals, bacterial cells, carbon sources) were investigated. The common substance in fermentation broth has little effect on oil spreading circle. An optimized protocol of the oil spreading method to quantify rhamnolipid was proposed. A positive linear correlation (R2 – 0.9908) was established between the diameter of the formed oil spreading circle and the concentration of rhamnolipid (100–800 mg L−1). Results of a large number of samples suggested that the oil spreading method is easy, rapid and reliable to analyze quantitatively rhamnolipids.
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Affiliation(s)
- Feng Zhao
- State Key Laboratory of Urban Water Resource and Environment , School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin , China
| | - Xiaolong Liang
- Institute of Applied Ecology , Chinese Academy of Sciences, Shenyang , China
| | - Yunhe Ban
- College of Chemistry and Life Science , Shenyang Normal University, Shenyang , China
| | - Siqin Han
- Institute of Applied Ecology , Chinese Academy of Sciences, Shenyang , China
| | - Jie Zhang
- State Key Laboratory of Urban Water Resource and Environment , School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin , China
| | - Ying Zhang
- Institute of Applied Ecology , Chinese Academy of Sciences, Shenyang , China
| | - Fang Ma
- State Key Laboratory of Urban Water Resource and Environment , School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin , China
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Arora A, Cameotra SS, Kumar R, Balomajumder C, Singh AK, Santhakumari B, Kumar P, Laik S. Biosurfactant as a Promoter of Methane Hydrate Formation: Thermodynamic and Kinetic Studies. Sci Rep 2016; 6:20893. [PMID: 26869357 PMCID: PMC4751436 DOI: 10.1038/srep20893] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Accepted: 10/15/2015] [Indexed: 11/09/2022] Open
Abstract
Natural gas hydrates (NGHs) are solid non-stoichiometric compounds often regarded as a next generation energy source. Successful commercialization of NGH is curtailed by lack of efficient and safe technology for generation, dissociation, storage and transportation. The present work studied the influence of environment compatible biosurfactant on gas hydrate formation. Biosurfactant was produced by Pseudomonas aeruginosa strain A11 and was characterized as rhamnolipids. Purified rhamnolipids reduced the surface tension of water from 72 mN/m to 36 mN/m with Critical Micelle Concentration (CMC) of 70 mg/l. Use of 1000 ppm rhamnolipids solution in C type silica gel bed system increased methane hydrate formation rate by 42.97% and reduced the induction time of hydrate formation by 22.63% as compared to water saturated C type silica gel. Presence of rhamnolipids also shifted methane hydrate formation temperature to higher values relative to the system without biosurfactant. Results from thermodynamic and kinetic studies suggest that rhamnolipids can be applied as environment friendly methane hydrate promoter.
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Affiliation(s)
- Amit Arora
- Department of Chemical Engineering, Indian Institute of Technology, Roorkee, India
| | | | - Rajnish Kumar
- Chemical Engineering and Process Development Division, National Chemical Laboratory, Pune, India
| | | | | | - B. Santhakumari
- Centre For Material Characterization, National Chemical Laboratory, Pune, India
| | - Pushpendra Kumar
- Keshav Dev Malviya Institute of Petroleum Exploration, Oil and Natural Gas Corporation, Dehradun, India
| | - Sukumar Laik
- Department of Petroleum Engineering, Indian School of Mines, Dhanbad, India
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Azemi MAFM, Rashid NFM, Saidin J, Effendy AWM, Bhubalan K. Application of Sweetwater as Potential Carbon Source for Rhamnolipid Production by Marine Pseudomonas aeruginosa UMTKB-5. ACTA ACUST UNITED AC 2016. [DOI: 10.17706/ijbbb.2016.6.2.50-58] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Golshan M, Dastoorpour M, Kalantary RR. Biosurfactant production and its effects on solubilization activity of phenanthrene: a longitudinal study. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2016; 74:580-585. [PMID: 27508362 DOI: 10.2166/wst.2016.232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Pseudomonas facilis and Pseudomonasspp., isolated on the basis of its ability to grow on polycyclic aromatic hydrocarbon, was assayed for biosurfactant production (BP) potentials by measuring the surface tension (ST) of the culture supernatant at different time intervals. The strains in three levels of initial inoculum size (OD600 nm = 0.5, 1, 1.5) were added to medium to determine if bacterial inoculum size affects solubilization of phenanthrene (PHE).The result showed that although the two strains reduced the mean ST to less than 34.12 mN m(-1) at the end of day 6, mean solubilization activity of PHE reached 77.05 mg L(-1) on the sixth day. There was a significant increase in BP over time (P = 0.008); reaching its peak, 157.84 mg L(-1), at the end of the sixth day. Mean solubilization activity of PHE was not significantly different for the two strains (P = 0.216). The time-course study revealed that the ST reduction and BP potential was enhanced as inoculation size increased, leading to higher PHE solubility during the incubation time. However, the trend of increase in PHE solubility was not totally in the same way to cell growth and BP. It may be suggested that more bacterial density needs to be inoculated for practical application of effective bioremediation.
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Affiliation(s)
- Masoumeh Golshan
- Department of Environmental Health Engineering, School of Health, Student Research Committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Maryam Dastoorpour
- Modeling in Health Research Center, Institute for Futures Studies in Health, Kerman University of Medical Sciences, Kerman, Iran
| | - Roshanak Rezaei Kalantary
- Department Research Center for Environmental Health Technology (RCEHT), Iran University of Medical Sciences, Tehran, Iran E-mail:
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Biswas B, Sarkar B, Rusmin R, Naidu R. Bioremediation of PAHs and VOCs: Advances in clay mineral-microbial interaction. ENVIRONMENT INTERNATIONAL 2015; 85:168-181. [PMID: 26408945 DOI: 10.1016/j.envint.2015.09.017] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Revised: 07/29/2015] [Accepted: 09/11/2015] [Indexed: 06/05/2023]
Abstract
Bioremediation is an effective strategy for cleaning up organic contaminants, such as polycyclic aromatic hydrocarbons (PAHs) and volatile organic compounds (VOCs). Advanced bioremediation implies that biotic agents are more efficient in degrading the contaminants completely. Bioremediation by microbial degradation is often employed and to make this process efficient, natural and cost-effective materials can serve as supportive matrices. Clay/modified clay minerals are effective adsorbents of PAHs/VOCs, and readily available substrate and habitat for microorganisms in the natural soil and sediment. However, the mechanism underpinning clay-mediated biodegradation of organic compounds is often unclear, and this requires critical investigation. This review describes the role of clay/modified clay minerals in hydrocarbon bioremediation through interaction with microbial agents in specific scenarios. The vision is on a faster, more efficient and cost-effective bioremediation technique using clay-based products. This review also proposes future research directions in the field of clay modulated microbial degradation of hydrocarbons.
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Affiliation(s)
- Bhabananda Biswas
- Future Industries Institute, University of South Australia, Mawson Lakes Campus, SA 5095, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment, ATC Building, University of Newcastle, Callaghan, NSW, Australia.
| | - Binoy Sarkar
- Future Industries Institute, University of South Australia, Mawson Lakes Campus, SA 5095, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment, ATC Building, University of Newcastle, Callaghan, NSW, Australia.
| | - Ruhaida Rusmin
- Future Industries Institute, University of South Australia, Mawson Lakes Campus, SA 5095, Australia; Faculty of Applied Science, Universiti Teknologi MARA Negeri Sembilan, Kuala Pilah 72000, Malaysia
| | - Ravi Naidu
- Future Industries Institute, University of South Australia, Mawson Lakes Campus, SA 5095, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment, ATC Building, University of Newcastle, Callaghan, NSW, Australia; Global Centre for Environmental Remediation, ATC Building, University of Newcastle, Callaghan, NSW, Australia.
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Optimization of cultural conditions for biosurfactant production by Pleurotus djamor in solid state fermentation. J Biosci Bioeng 2015; 120:526-31. [DOI: 10.1016/j.jbiosc.2015.03.007] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Revised: 02/23/2015] [Accepted: 03/05/2015] [Indexed: 11/17/2022]
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50
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Borges WS, Moura AAO, Coutinho Filho U, Cardoso VL, Resende MM. OPTIMIZATION OF THE OPERATING CONDITIONS FOR RHAMNOLIPID PRODUCTION USING SLAUGHTERHOUSE-GENERATED INDUSTRIAL FLOAT AS SUBSTRATE. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2015. [DOI: 10.1590/0104-6632.20150322s00003675] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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