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El Haber M, Gérard V, Kleinheins J, Ferronato C, Nozière B. Measuring the Surface Tension of Atmospheric Particles and Relevant Mixtures to Better Understand Key Atmospheric Processes. Chem Rev 2024. [PMID: 39177157 DOI: 10.1021/acs.chemrev.4c00173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2024]
Abstract
Aerosol and aqueous particles are ubiquitous in Earth's atmosphere and play key roles in geochemical processes such as natural chemical cycles, cloud and fog formation, air pollution, visibility, climate forcing, etc. The surface tension of atmospheric particles can affect their size distribution, condensational growth, evaporation, and exchange of chemicals with the atmosphere, which, in turn, are important in the above-mentioned geochemical processes. However, because measuring this quantity is challenging, its role in atmospheric processes was dismissed for decades. Over the last 15 years, this field of research has seen some tremendous developments and is rapidly evolving. This review presents the state-of-the-art of this subject focusing on the experimental approaches. It also presents a unique inventory of experimental adsorption isotherms for over 130 mixtures of organic compounds in water of relevance for model development and validation. Potential future areas of research seeking to better determine the surface tension of atmospheric particles, better constrain laboratory investigations, or better understand the role of surface tension in various atmospheric processes, are discussed. We hope that this review appeals not only to atmospheric scientists but also to researchers from other fields, who could help identify new approaches and solutions to the current challenges.
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Affiliation(s)
- Manuella El Haber
- Institut de Recherches sur l'Environnement et la Catalyse de Lyon (IRCELYON), CNRS and Université Lyon 1, Villeurbanne 69626, France
| | - Violaine Gérard
- Institut de Recherches sur l'Environnement et la Catalyse de Lyon (IRCELYON), CNRS and Université Lyon 1, Villeurbanne 69626, France
| | - Judith Kleinheins
- Institute for Atmospheric and Climate Science, ETH Zürich, Universitätstrasse 16, 8092 Zürich, Switzerland
| | - Corinne Ferronato
- Institut de Recherches sur l'Environnement et la Catalyse de Lyon (IRCELYON), CNRS and Université Lyon 1, Villeurbanne 69626, France
| | - Barbara Nozière
- Department of Chemistry, KTH Royal Institute of Technology, Stockholm 114 28, Sweden
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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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Opulente DA, LaBella AL, Harrison MC, Wolters JF, Liu C, Li Y, Kominek J, Steenwyk JL, Stoneman HR, VanDenAvond J, Miller CR, Langdon QK, Silva M, Gonçalves C, Ubbelohde EJ, Li Y, Buh KV, Jarzyna M, Haase MAB, Rosa CA, Čadež N, Libkind D, DeVirgilio JH, Hulfachor AB, Kurtzman CP, Sampaio JP, Gonçalves P, Zhou X, Shen XX, Groenewald M, Rokas A, Hittinger CT. Genomic factors shape carbon and nitrogen metabolic niche breadth across Saccharomycotina yeasts. Science 2024; 384:eadj4503. [PMID: 38662846 PMCID: PMC11298794 DOI: 10.1126/science.adj4503] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 03/22/2024] [Indexed: 05/03/2024]
Abstract
Organisms exhibit extensive variation in ecological niche breadth, from very narrow (specialists) to very broad (generalists). Two general paradigms have been proposed to explain this variation: (i) trade-offs between performance efficiency and breadth and (ii) the joint influence of extrinsic (environmental) and intrinsic (genomic) factors. We assembled genomic, metabolic, and ecological data from nearly all known species of the ancient fungal subphylum Saccharomycotina (1154 yeast strains from 1051 species), grown in 24 different environmental conditions, to examine niche breadth evolution. We found that large differences in the breadth of carbon utilization traits between yeasts stem from intrinsic differences in genes encoding specific metabolic pathways, but we found limited evidence for trade-offs. These comprehensive data argue that intrinsic factors shape niche breadth variation in microbes.
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Affiliation(s)
- Dana A. Opulente
- Laboratory of Genetics, Wisconsin Energy Institute, Center for Genomic Science Innovation, J. F. Crow Institute for the Study of Evolution, University of Wisconsin-Madison, Madison, WI 53726, USA
- DOE Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Madison, WI 53726, USA
- Biology Department Villanova University, Villanova, PA 19085, USA
| | - Abigail Leavitt LaBella
- Department of Biological Sciences, Vanderbilt University, Nashville, TN 37235, USA
- Evolutionary Studies Initiative, Vanderbilt University, Nashville, TN 37235, USA
- North Carolina Research Center (NCRC), Department of Bioinformatics and Genomics, The University of North Carolina at Charlotte, 150 Research Campus Drive, Kannapolis, NC 28081, USA
| | - Marie-Claire Harrison
- Department of Biological Sciences, Vanderbilt University, Nashville, TN 37235, USA
- Evolutionary Studies Initiative, Vanderbilt University, Nashville, TN 37235, USA
| | - John F. Wolters
- Laboratory of Genetics, Wisconsin Energy Institute, Center for Genomic Science Innovation, J. F. Crow Institute for the Study of Evolution, University of Wisconsin-Madison, Madison, WI 53726, USA
- DOE Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Madison, WI 53726, USA
| | - Chao Liu
- College of Agriculture and Biotechnology and Centre for Evolutionary & Organismal Biology, Zhejiang University, Hangzhou 310058, China
| | - Yonglin Li
- Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Center, South China Agricultural University, Guangzhou 510642, China
| | - Jacek Kominek
- Laboratory of Genetics, Wisconsin Energy Institute, Center for Genomic Science Innovation, J. F. Crow Institute for the Study of Evolution, University of Wisconsin-Madison, Madison, WI 53726, USA
- DOE Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Madison, WI 53726, USA
- LifeMine Therapeutics, Inc., Cambridge, MA 02140, USA
| | - Jacob L. Steenwyk
- Department of Biological Sciences, Vanderbilt University, Nashville, TN 37235, USA
- Evolutionary Studies Initiative, Vanderbilt University, Nashville, TN 37235, USA
- Howards Hughes Medical Institute and the Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Hayley R. Stoneman
- Laboratory of Genetics, Wisconsin Energy Institute, Center for Genomic Science Innovation, J. F. Crow Institute for the Study of Evolution, University of Wisconsin-Madison, Madison, WI 53726, USA
- DOE Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Madison, WI 53726, USA
- University of Colorado - Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Jenna VanDenAvond
- Laboratory of Genetics, Wisconsin Energy Institute, Center for Genomic Science Innovation, J. F. Crow Institute for the Study of Evolution, University of Wisconsin-Madison, Madison, WI 53726, USA
- DOE Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Madison, WI 53726, USA
| | - Caroline R. Miller
- Laboratory of Genetics, Wisconsin Energy Institute, Center for Genomic Science Innovation, J. F. Crow Institute for the Study of Evolution, University of Wisconsin-Madison, Madison, WI 53726, USA
- DOE Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Madison, WI 53726, USA
| | - Quinn K. Langdon
- Laboratory of Genetics, Wisconsin Energy Institute, Center for Genomic Science Innovation, J. F. Crow Institute for the Study of Evolution, University of Wisconsin-Madison, Madison, WI 53726, USA
| | - Margarida Silva
- UCIBIO, Department of Life Sciences, NOVA School of Science and Technology, Universidade NOVA de Lisboa, Caparica, Portugal
- Associate Laboratory i4HB, NOVA School of Science and Technology, Universidade NOVA de Lisboa, Caparica, Portugal
| | - Carla Gonçalves
- Laboratory of Genetics, Wisconsin Energy Institute, Center for Genomic Science Innovation, J. F. Crow Institute for the Study of Evolution, University of Wisconsin-Madison, Madison, WI 53726, USA
- Department of Biological Sciences, Vanderbilt University, Nashville, TN 37235, USA
- Evolutionary Studies Initiative, Vanderbilt University, Nashville, TN 37235, USA
- UCIBIO, Department of Life Sciences, NOVA School of Science and Technology, Universidade NOVA de Lisboa, Caparica, Portugal
- Associate Laboratory i4HB, NOVA School of Science and Technology, Universidade NOVA de Lisboa, Caparica, Portugal
| | - Emily J. Ubbelohde
- Laboratory of Genetics, Wisconsin Energy Institute, Center for Genomic Science Innovation, J. F. Crow Institute for the Study of Evolution, University of Wisconsin-Madison, Madison, WI 53726, USA
- DOE Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Madison, WI 53726, USA
| | - Yuanning Li
- Department of Biological Sciences, Vanderbilt University, Nashville, TN 37235, USA
- Institute of Marine Science and Technology, Shandong University, Qingdao 266237, China
- Laboratory for Marine Biology and Biotechnology, Qingdao Marine Science and Technology Center, Qingdao 266237, China
| | - Kelly V. Buh
- Laboratory of Genetics, Wisconsin Energy Institute, Center for Genomic Science Innovation, J. F. Crow Institute for the Study of Evolution, University of Wisconsin-Madison, Madison, WI 53726, USA
| | - Martin Jarzyna
- Laboratory of Genetics, Wisconsin Energy Institute, Center for Genomic Science Innovation, J. F. Crow Institute for the Study of Evolution, University of Wisconsin-Madison, Madison, WI 53726, USA
- Graduate Program in Neuroscience and Department of Biology, Washington University School of Medicine, St. Louis, MO 63130, USA
| | - Max A. B. Haase
- Laboratory of Genetics, Wisconsin Energy Institute, Center for Genomic Science Innovation, J. F. Crow Institute for the Study of Evolution, University of Wisconsin-Madison, Madison, WI 53726, USA
- DOE Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Madison, WI 53726, USA
- Vilcek Institute of Graduate Biomedical Sciences and Institute for Systems Genetics, NYU Langone Health, New York, NY 10016, USA
- Department of Mechanistic Cell Biology, Max Planck Institute of Molecular Physiology, 44227 Dortmund, Germany
| | - Carlos A. Rosa
- Departamento de Microbiologia, ICB, C.P. 486, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil
| | - Neža Čadež
- Food Science and Technology Department, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Diego Libkind
- Centro de Referencia en Levaduras y Tecnología Cervecera (CRELTEC), Instituto Andino Patagónico de Tecnologías Biológicas y Geoambientales (IPATEC), Universidad Nacional del Comahue, CONICET, CRUB, Quintral 1250, San Carlos de Bariloche, 8400, Río Negro, Argentina
| | - Jeremy H. DeVirgilio
- Mycotoxin Prevention and Applied Microbiology Research Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, U.S. Department of Agriculture, Peoria, IL 61604, USA
| | - Amanda Beth Hulfachor
- Laboratory of Genetics, Wisconsin Energy Institute, Center for Genomic Science Innovation, J. F. Crow Institute for the Study of Evolution, University of Wisconsin-Madison, Madison, WI 53726, USA
- DOE Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Madison, WI 53726, USA
| | - Cletus P. Kurtzman
- Mycotoxin Prevention and Applied Microbiology Research Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, U.S. Department of Agriculture, Peoria, IL 61604, USA
| | - José Paulo Sampaio
- UCIBIO, Department of Life Sciences, NOVA School of Science and Technology, Universidade NOVA de Lisboa, Caparica, Portugal
- Associate Laboratory i4HB, NOVA School of Science and Technology, Universidade NOVA de Lisboa, Caparica, Portugal
| | - Paula Gonçalves
- UCIBIO, Department of Life Sciences, NOVA School of Science and Technology, Universidade NOVA de Lisboa, Caparica, Portugal
- Associate Laboratory i4HB, NOVA School of Science and Technology, Universidade NOVA de Lisboa, Caparica, Portugal
| | - Xiaofan Zhou
- Department of Biological Sciences, Vanderbilt University, Nashville, TN 37235, USA
- Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Center, South China Agricultural University, Guangzhou 510642, China
| | - Xing-Xing Shen
- Department of Biological Sciences, Vanderbilt University, Nashville, TN 37235, USA
- College of Agriculture and Biotechnology and Centre for Evolutionary & Organismal Biology, Zhejiang University, Hangzhou 310058, China
| | | | - Antonis Rokas
- Department of Biological Sciences, Vanderbilt University, Nashville, TN 37235, USA
- Evolutionary Studies Initiative, Vanderbilt University, Nashville, TN 37235, USA
| | - Chris Todd Hittinger
- Laboratory of Genetics, Wisconsin Energy Institute, Center for Genomic Science Innovation, J. F. Crow Institute for the Study of Evolution, University of Wisconsin-Madison, Madison, WI 53726, USA
- DOE Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Madison, WI 53726, USA
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Xia L, Wen J. Available strategies for improving the biosynthesis of surfactin: a review. Crit Rev Biotechnol 2023; 43:1111-1128. [PMID: 36001039 DOI: 10.1080/07388551.2022.2095252] [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: 01/04/2022] [Accepted: 06/04/2022] [Indexed: 11/03/2022]
Abstract
Surfactin is an excellent biosurfactant with a wide range of application prospects in many industrial fields. However, its low productivity and high cost have largely limited its commercial applications. In this review, the pathways for surfactin synthesis in Bacillus strains are summarized and discussed. Further, the latest strategies for improving surfactin production, including: medium optimization, genome engineering methods (rational genetic engineering, genome reduction, and genome shuffling), heterologous synthesis, and the use of synthetic biology combined with metabolic engineering approaches to construct high-quality artificial cells for surfactin production using xylose, are described. Finally, the prospects for improving surfactin synthesis are discussed in detail.
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Affiliation(s)
- Li Xia
- Key Laboratory of Systems Bioengineering, Ministry of Education, Department of Biological Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, People's Republic of China
- National Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin, People's Republic of China
- Frontier Science Center of the Ministry of Education, Tianjin University, Tianjin, People's Republic of China
| | - Jianping Wen
- Key Laboratory of Systems Bioengineering, Ministry of Education, Department of Biological Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, People's Republic of China
- National Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin, People's Republic of China
- Frontier Science Center of the Ministry of Education, Tianjin University, Tianjin, People's Republic of China
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Yin QJ, Ying TT, Zhou ZY, Hu GA, Yang CL, Hua Y, Wang H, Wei B. Species-specificity of the secondary biosynthetic potential in Bacillus. Front Microbiol 2023; 14:1271418. [PMID: 37937215 PMCID: PMC10626522 DOI: 10.3389/fmicb.2023.1271418] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 10/09/2023] [Indexed: 11/09/2023] Open
Abstract
Introduction Although Bacillus species have produced a wide variety of structurally diverse and biologically active natural products, the secondary biosynthetic potential of Bacillus species is widely underestimated due to the limited number of biosynthetic gene clusters (BGCs) in this genus. The significant variation in the diversity and novelty of BGCs across different species within the Bacillus genus presents a major obstacle to the efficient discovery of novel natural products from Bacillus. Methods In this study, the number of each class of BGCs in all 6,378 high-quality Bacillus genomes was predicted using antiSMASH, the species-specificity of BGC distribution in Bacillus was investigated by Principal component analysis. Then the structural diversity and novelty of the predicted secondary metabolites in Bacillus species with specific BGC distributions were analyzed using molecular networking. Results Our results revealed a certain degree of species-specificity in the distribution of BGCs in Bacillus, which was mainly contributed by siderophore, type III polyketide synthase (T3PKS), and transAT-PKS BGCs. B. wiedmannii, B. thuringiensis, and B. cereus are rich in RiPP-like and siderophore BGCs, but lack T3PKS BGCs, while B. amyloliquefaciens and B. velezensis are abundant in transAT-PKS BGCs. These Bacillus species collectively encode 77,541 BGCs, with NRPS and RiPPs being the two most dominant types, which are further categorized into 4,291 GCFs. Remarkably, approximately 54.5% of GCFs and 93.8% of the predicted metabolite scaffolds are found exclusively in a single Bacillus species. Notably, B. cereus, B. thuringiensis, and B. velezensis exhibit the highest potential for producing species-specific NRPS and PKS bioinformatic natural products. Taking two species-specific NRPS gene clusters as examples, the potential of Bacillus to synthesize novel species-specific natural products is illustrated. Conclusion This study highlights the species-specificity of the secondary biosynthetic potential in Bacillus and provides valuable insights for the targeted discovery of novel natural products from this genus.
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Affiliation(s)
- Qun-Jian Yin
- Fourth Institute of Oceanography, Ministry of Natural Resources, Beihai, China
| | - Ti-Ti Ying
- College of Pharmaceutical Science and Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Key Laboratory of Marine Fishery Resources Exploitation and Utilization of Zhejiang Province, Zhejiang University of Technology, Hangzhou, China
| | - Zhen-Yi Zhou
- College of Pharmaceutical Science and Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Key Laboratory of Marine Fishery Resources Exploitation and Utilization of Zhejiang Province, Zhejiang University of Technology, Hangzhou, China
| | - Gang-Ao Hu
- College of Pharmaceutical Science and Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Key Laboratory of Marine Fishery Resources Exploitation and Utilization of Zhejiang Province, Zhejiang University of Technology, Hangzhou, China
| | - Cai-Ling Yang
- College of Pharmaceutical Science and Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Key Laboratory of Marine Fishery Resources Exploitation and Utilization of Zhejiang Province, Zhejiang University of Technology, Hangzhou, China
| | - Yi Hua
- College of Pharmaceutical Science and Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Key Laboratory of Marine Fishery Resources Exploitation and Utilization of Zhejiang Province, Zhejiang University of Technology, Hangzhou, China
| | - Hong Wang
- College of Pharmaceutical Science and Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Key Laboratory of Marine Fishery Resources Exploitation and Utilization of Zhejiang Province, Zhejiang University of Technology, Hangzhou, China
| | - Bin Wei
- College of Pharmaceutical Science and Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Key Laboratory of Marine Fishery Resources Exploitation and Utilization of Zhejiang Province, Zhejiang University of Technology, Hangzhou, China
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Moldes AB, Álvarez-Chaver P, Vecino X, Cruz JM. Purification of lipopeptide biosurfactant extracts obtained from a complex residual food stream using Tricine-SDS-PAGE electrophoresis. Front Bioeng Biotechnol 2023; 11:1199103. [PMID: 37346790 PMCID: PMC10280073 DOI: 10.3389/fbioe.2023.1199103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 05/29/2023] [Indexed: 06/23/2023] Open
Abstract
Protocols to identify lipopeptide biosurfactant extracts contained in complex residual streams are very important, as fermented agri-food matrices are potential sources of these valuable compounds. For instance, corn steep liquor (CSL), a secondary stream of the corn wet-milling industry, is composed of a mixture of microbial metabolites, produced during the corn steeping process, and other natural metabolites released from corn, that can interfere with the purification and analysis of lipopeptides. Electrophoresis could be an interesting technique for the purification and further characterization of lipopeptide biosurfactant extracts contained in secondary residual streams like CSL, but there is little existing literature about it. It is necessary to consider that lipopeptide biosurfactants, like Surfactin, usually are substances that are poorly soluble in water at acidic or neutral pH, forming micelles what can inhibit their separation by electrophoresis. In this work, two lipopeptide biosurfactant extracts obtained directly from CSL, after liquid-liquid extraction with chloroform or ethyl acetate, were purified by applying a second liquid extraction with ethanol. Following that, ethanolic biosurfactant extracts were subjected to electrophoresis under different conditions. Lipopeptides on Tricine-SDS-PAGE (polyacrylamide gels) were better visualized and identified by fluorescence using SYPRO Ruby dye than using Coomassie blue dye. The matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS) analysis of lipopeptide isoforms separated by electrophoresis revealed the presence of masses at 1,044, 1,058, and 1,074 m/z, concluding that Tricine-SDS-PAGE electrophoresis combined with MALDI-TOF-MS could be a useful tool for purifying and identifying lipopeptides in complex matrices.
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Affiliation(s)
- A. B. Moldes
- CINTECX (Research Center in Technologies, Energy and Industrial Processes), Chemical Engineering Department, University of Vigo, Vigo, Spain
| | - P. Álvarez-Chaver
- CACTI (Centro de Apoyo Científico y Tecnológico a la Investigación), Structural Determination and Proteomics Service, University of Vigo, Vigo, Spain
| | - X. Vecino
- CINTECX (Research Center in Technologies, Energy and Industrial Processes), Chemical Engineering Department, University of Vigo, Vigo, Spain
| | - J. M. Cruz
- CINTECX (Research Center in Technologies, Energy and Industrial Processes), Chemical Engineering Department, University of Vigo, Vigo, Spain
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Xiao P, Tian X, Zhu P, Xu Y, Zhou C. The use of surfactin in inhibiting Botrytis cinerea and in protecting winter jujube from the gray mold. AMB Express 2023; 13:37. [PMID: 37118318 PMCID: PMC10147881 DOI: 10.1186/s13568-023-01543-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 04/05/2023] [Indexed: 04/30/2023] Open
Abstract
Surfactin has the potential to be used as a food preservative. However, efficiency and action mechanism in various applications need more assessments and research. In this study, the antifungal effects and the mechanism of action of surfactin on the fungus Botrytis cinerea were investigated. The effects of applying surfactin for the removal of gray mold on the quality of winter jujube were investigated based on the changes in fruit fatty acids. The results showed that (1) surfactin significantly inhibited the growth of B. cinerea, the EC50 at 5 d was 46.42 mg/L. (2) Surfactin significantly reduced the disease incidence and diameter of gray mold-inoculated winter jujube in a concentration-dependent manner. For that treated with surfactin at the EC50, the incidence decreased by 38.89%. (3) For B. cinerea under surfactin treatment, the mycelial morphology changed, the levels of total lipids and ergosterol decreased, the reactive oxygen species levels increased, and the cell integrity was completely damaged. (4) For winter jujube inoculated by B. cinerea, the contents of saturated fatty acids decreased and unsaturated fatty acids increased. For those under the surfactin treatments, winter jujube maintained the fatty acid composition at the level of non-inoculated groups. Mechanical injury significantly changed the fatty acid composition of winter jujube; however, surfactin not only was able to inhibit the growth of gray mold but also mitigated the adverse effects from mechanical injury. The present study demonstrated the potential applications of surfactin in the preservation of postharvest fruit quality.
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Affiliation(s)
- Peng Xiao
- School of Marine Science, Ningbo University, Ningbo, 315211, Zhejiang, China
| | - Xiaoyu Tian
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, 315211, China
| | - Peng Zhu
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, 315211, China
| | - Yangyang Xu
- College of Food and Pharmaceutical Sciences, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, Ningbo University, Ningbo, 315800, China
| | - Chengxu Zhou
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, 315211, China.
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Sharma N, Lavania M, Kukreti V, Rana DP, Lal B. Enhanced Oil Recovery Using Indigenous Microbiome of High Temperature Oil Reservoirs. Curr Microbiol 2023; 80:179. [PMID: 37039908 DOI: 10.1007/s00284-023-03272-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 03/15/2023] [Indexed: 04/12/2023]
Abstract
Crude oil is a primary energy source used for economic expansion across the world. Secondary recovery processes employed by industries to recover oil from oil wells leave behind 70% of the oil trapped in marginal and deleted zones of reservoirs. To recover the oil from depleted zones, microbial enhanced oil recovery (MEOR) tertiary processes were introduced, which involve the production of metabolites from the indigenous microbiome. In this study, the indigenous microbiota was identified as Marinobacterium sp., Silvanigrella sp., Petrothermobacter sp., Pseudomonas sp., Bacillus sp., Nitrincola sp., Halomonas sp., Uncultured Roseovarius sp., and Phaeobacter. Further, the secondary metabolites such as volatile fatty acids (ethanol, acetone, and acetate), biomass, gases (CO2, CH4), and biosurfactants were estimated through gas chromatography and FTIR spectroscopy. Once stable microbial growth was attained in the baltch media, it was optimized through response surface methodology (RSM) to minimize the process cost. The optimized media with 9 g/L of molasses, 1.75 g/L of sodium bicarbonate, and 1.25 g/L of ammonium chloride showed a significant impact on metabolite production. Additionally, core flood studies to simulate field studies were performed that represented that TeriK-1 brought a significant increment of 18.9%, which makes it suitable for MEOR field implementation. This study is one of its kind where the indigenous thermophilic sp. was successfully established and is capable of producing the secondary metabolites that aid in the MEOR process.
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Affiliation(s)
- Neha Sharma
- Microbial Biotechnology, Environmental and Industrial Biotechnology Division, The Energy and Resources Institute (TERI), Darbari Seth Block, India Habitat Centre, Lodi Road, , New Delhi, 110003, India
| | - Meeta Lavania
- Microbial Biotechnology, Environmental and Industrial Biotechnology Division, The Energy and Resources Institute (TERI), Darbari Seth Block, India Habitat Centre, Lodi Road, , New Delhi, 110003, India.
| | - Vipin Kukreti
- Institute of Reservoir Studies, Oil and Natural Gas Corporation Limited, Ahmadabad, India
| | - Dolly Pal Rana
- Institute of Reservoir Studies, Oil and Natural Gas Corporation Limited, Ahmadabad, India
| | - Banwari Lal
- Microbial Biotechnology, Environmental and Industrial Biotechnology Division, The Energy and Resources Institute (TERI), Darbari Seth Block, India Habitat Centre, Lodi Road, , New Delhi, 110003, India
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9
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Cui T, Tang Y, Zhao M, Hu Y, Jin M, Long X. Preparing Biosurfactant Glucolipids from Crude Sophorolipids via Chemical Modifications and Their Potential Application in the Food Industry. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:2964-2974. [PMID: 36723399 DOI: 10.1021/acs.jafc.2c06066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
This investigation developed a novel strategy for efficiently preparing glucolipids (GLs) by chemically modifying crude sophorolipids. Running this strategy, crude sophorolipids were effectively transformed into GLs through deglycosylation and de-esterification, with a yield of 54.1%. The acquired GLs were then purified via stepwise extractions, and 66.2% of GLs with 95% purity was recovered. GLs are more hydrophobic and present a stronger surface activity than acidic sophorolipids (ASLs). More importantly, these GLs displayed a superior antimicrobial activity to that of ASLs against the tested Gram-positive food pathogens, with a minimum inhibitory concentration of 32-64 mg/L, except against E. coli . This activity of GLs is pH-dependent and especially more powerful under acidic conditions. The mechanism involved is possibly associated with the more efficient adsorption of GLs, as demonstrated by the hydrophobicity of the cell membrane. These GLs could be used as antimicrobial agents for food preservation and health in the food industry.
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Affiliation(s)
- Tianyou Cui
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing210094, PR China
| | - Yujing Tang
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing210094, PR China
| | - Mengqian Zhao
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing210094, PR China
| | - Yang Hu
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing210094, PR China
| | - Mingjie Jin
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing210094, PR China
| | - Xuwei Long
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing210094, PR China
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10
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Lee D, Oh T, Kang B, Ahn JS, Cho Y. Throughput screening of Bacillus subtilis strains that abundantly secrete surfactin in vitro identifies effective probiotic candidates. PLoS One 2022; 17:e0277412. [PMID: 36417387 PMCID: PMC9683610 DOI: 10.1371/journal.pone.0277412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 10/26/2022] [Indexed: 11/24/2022] Open
Abstract
Since the prohibition of antibiotics as animal growth promoters, demand for effective probiotic strains has steadily increased. The goal is to maintain productivity and mitigate environmental concerns in the livestock industry. There are many probiotic animal-diet supplements available, over 2,000 products in the Republic of Korea alone, with little explanation about the desirable properties of each probiotic strain. The purpose of this study was to describe the underlying logic and methods used to select two novel strains of probiotic candidates. To economically screen these candidates, the abundance of surfactin secreted was used as an in vitro marker. We used a modified oil-misting method to screen ~2,000 spore-forming bacteria for novel strains of Bacillus subtilis. Of these, 18 strains were initially selected based on the semiquantitative criterion that they secreted more surfactin than B. subtilis ATCC21322 on Luria-Berani (LB) agar plates. The whole genome sequence was determined for two of the 18 strains to verify their identity. A phylogeny of 1,162 orthologous genes, genome contents, and genome organization confirmed them as novel strains. The surfactin profiles produced by these two strains consisted of at least four isoforms similar to standard surfactin and enhanced cellulase activities up to 50%. Four fractionated individual isoforms of surfactin suppressed inflammation induced by lipopolysaccharides. The half-maximal inhibitory concentration (IC50) was about 20 μM for each isoform. Both selected strains were susceptible to seven important antibiotics. Our results implied that an abundant secretion of surfactin was a useful biomarker in vitro and could be utilized for mining probiotic candidates through high-throughput screening of environmental samples.
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Affiliation(s)
- Dongho Lee
- Molpaxbio, Yuseong-gu, Daejeon, Republic of Korea
| | - Taehoon Oh
- Chemical Biology Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang-eup, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do, Republic of Korea
| | | | - Jong Seok Ahn
- Chemical Biology Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang-eup, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do, Republic of Korea
- * E-mail: (YC); (JSA)
| | - Yangrae Cho
- ProxEnrem, Osong-eup, Chungju-si, Republic of Korea
- * E-mail: (YC); (JSA)
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11
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Yu F, Du Y, Deng S, Jin M, Zhang D, Zhao M, Yin J, Long X. Efficient preparation of extremely high-purity surfactin from fermentation broth by ethanol extraction. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/07/2022]
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12
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Isolation and characterization of a mycosubtilin homologue antagonizing Verticillium dahliae produced by Bacillus subtilis strain Z15. PLoS One 2022; 17:e0269861. [PMID: 35696380 PMCID: PMC9191732 DOI: 10.1371/journal.pone.0269861] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Accepted: 05/27/2022] [Indexed: 11/19/2022] Open
Abstract
Bacillus subtilis strain Z15 (BS-Z15) was isolated from the cotton field of Xinjiang, China, and characterized as an effective biocontrol agent antagonizing plant pathogen Verticillium dahliae 991 (VD-991). However, the chemical substance produced by BS-Z15 for resistance to VD-991 remains elusive. Here, a serial purification methods including HCl precipitation, organic solvent extraction, and separation by semi-preparative High-Performance Liquid Chromatography were performed to obtain a single compound about 3.5 mg/L from the fermentation broth of BS-Z15, which has an antifungal activity against VD-991. Moreover, Fourier Transform Infrared spectrum, Nuclear Magnetic Resonance Spectroscopy, and Tandem Mass Spectrometry analyses were carried out to finally confirm that the active compound from BS-Z15 is a mycosubtilin homologue with C17 fatty acid chain. Genomic sequence prediction and PCR verification further showed that the BS-Z15 genome contains the whole mycosubtilin operon comprising four ORFs: fenF, mycA, mycB, and mycC, and the expression levels of mycA-N, mycB-Y and mycC-N reached a peak at 32-h fermentation. Although mycosubtilin homologue at 1 μg/mL promoted the germination of cotton seed, that with high concentration at 10 μg/mL had no significant effect on seed germination, plant height and dry weight. Furthermore, mycosubtilin homologue sprayed at 10 μg/mL on two-week-old cotton leaves promotes the expression of pathogen-associated genes and gossypol accumulation, and greatly decreases VD-991 infection in cotton with disease index statistics. This study provides an efficient purification strategy for mycosubtilin homologue from BS-Z15, which can potentially be used as a biocontrol agent for controlling verticillium wilt in cotton.
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13
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Lipopeptide Biosurfactants from Bacillus spp.: Types, Production, Biological Activities, and Applications in Food. J FOOD QUALITY 2022. [DOI: 10.1155/2022/3930112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Biosurfactants are a functionally and structurally heterogeneous group of biomolecules produced by multiple filamentous fungi, yeast, and bacteria, and characterized by their distinct surface and emulsifying ability. The genus Bacillus is well studied for biosurfactant production as it produces various types of lipopeptides, for example, lichenysins, bacillomycin, fengycins, and surfactins. Bacillus lipopeptides possess a broad spectrum of biological activities such as antimicrobial, antitumor, immunosuppressant, and antidiabetic, in addition to their use in skincare. Moreover, Bacillus lipopeptides are also involved in various food products to increase the antimicrobial, surfactant, and emulsification impact. From the previously published articles, it can be concluded that biosurfactants have strong potential to be used in food, healthcare, and agriculture. In this review article, we discuss the versatile functions of lipopeptide Bacillus species with particular emphasis on the biological activities and their applications in food.
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14
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Kalvandi S, Garousin H, Pourbabaee AA, Alikhani HA. Formulation of a Culture Medium to Optimize the Production of Lipopeptide Biosurfactant by a New Isolate of Bacillus sp.: A Soil Heavy Metal Mitigation Approach. Front Microbiol 2022; 13:785985. [PMID: 35387088 PMCID: PMC8979173 DOI: 10.3389/fmicb.2022.785985] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 01/18/2022] [Indexed: 11/13/2022] Open
Abstract
This research aimed to optimize a lipopeptide biosurfactant produced from Bacillus sp. SHA302 due to its high efficiency of heavy metal release in soil. The results demonstrated that the metal release capacity of the lipopeptide biosurfactant alone increased with increasing the biosurfactant concentration. Among treatments with different biosurfactant concentrations plus acid, the highest metal release rates of 53.8% ± 1.4 and 39.3% ± 1.7 for Zn and Pb, respectively, were observed in the critical micelle concentration (CMC) + HCl treatment. The results of a factorial experiment designed for optimizing biosurfactant production showed that among five inexpensive carbon sources and six mineral nitrogen sources, sugar beet molasses (1%) and ammonium chloride (0.1%) were the most efficient sources in lowering the surface tension (ST) of the culture media to 32.2 ± 0.76 mN/m. The second step of the experiment was a Plackett-Burman design with 11 factors and showed that the four factors of pH, ammonium chloride, magnesium sulfate, and molasses significantly affected (P < 0.05) the changes in ST and biosurfactant production. The third step of the experiment was done using the response surface methodology (RSM) with a central composite design. The results showed that a pH of 7.3, 1.5 g/l of ammonium chloride, 0.3 g/l of magnesium sulfate, and 10% of sugar beet molasses yielded values of 29.2 ± 0.71 mN/m and 5.74 ± 0.52 g/l for the two variables of ST and biosurfactant production, respectively, which reached their most optimal levels.
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Affiliation(s)
| | | | - Ahmad Ali Pourbabaee
- Biology and Biotechnology Lab, Department of Soil Science, University College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
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15
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Hu M, Yu J, Zhang H, Xu Q. An efficient method for the recovery and separation of surfactin from fermentation broth by extraction-back extraction. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.01.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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16
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López-Prieto A, Moldes AB, Cruz JM, Pérez-Cid B. Solubilization of cuprous oxide in water using biosurfactant extracts from corn steep liquor: a comparative study. Sci Rep 2022; 12:2695. [PMID: 35177682 PMCID: PMC8854742 DOI: 10.1038/s41598-022-06386-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 01/06/2022] [Indexed: 11/16/2022] Open
Abstract
In this work the chemical characterization (elemental analysis and the content of phospholipids) and surface-active properties of two biosurfactants (BS) extracted with both chloroform or ethyl acetate from corn steep liquor were compared. The phospholipids content for the BS extracted with chloroform (BS1) was considerably higher (8.15%) than that obtained for the BS extracted with ethyl acetate (BS2), 0.11%. When comparing the FTIR spectra of the two BS studied in this work with the spectrum of the commercial surfactant lecithin, a greater similarity (75%) was observed with the spectrum of the BS1. The biosurfactant extract (BS2) provided the most favorable conditions for the solubilization of cuprous oxide (Cu-Ox) in water (12.54% of copper dissolved), in comparison with BS1. The results achieved were considerably better than those obtained with chemical surfactants (Tween 80, SDS and CTAB) on solubilizing Cu-Ox, resulting in the latter cases on percentages of Cu dissolved always lower than 0.21%. In addition, a factorial design was performed obtaining the optimum conditions to solubilize Cu-Ox, where the maximum water solubility of Cu-Ox (13.17%) was achieved using 3.93 g/L of BS2 with a contact time of 19.86 min and using a concentration of Cu-Ox of 1.96 g/L. Thus, the BS2 extract could have a promising future as solubilizing agent in the formulation of more sustainable Cu-Ox based pesticides. Moreover, it was confirmed that the presence of phospholipids prevents the solubilization of copper-based pesticides in water.
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Affiliation(s)
- A López-Prieto
- Chemical Engineering Department, School of Industrial Engineering - Centro de CINTECX, University of Vigo, Campus As Lagoas-Marcosende, 36310, Vigo, Spain
| | - A B Moldes
- Chemical Engineering Department, School of Industrial Engineering - Centro de CINTECX, University of Vigo, Campus As Lagoas-Marcosende, 36310, Vigo, Spain.
| | - J M Cruz
- Chemical Engineering Department, School of Industrial Engineering - Centro de CINTECX, University of Vigo, Campus As Lagoas-Marcosende, 36310, Vigo, Spain
| | - B Pérez-Cid
- Food and Analytical Chemistry Department, Faculty of Chemistry, University of Vigo, Campus As Lagoas-Marcosende, 36310, Vigo, Spain
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17
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Applying Surfactin in the Removal of Blooms of Karlodinium veneficum Increases the Toxic Potential. JOURNAL OF MARINE SCIENCE AND ENGINEERING 2022. [DOI: 10.3390/jmse10020196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Biosurfactant has potential application value in the removal of microalgal blooms, but the ecological risks require more research. In this paper, the effects of surfactin on the toxic dinoflagellate Karlodinium veneficum were studied. The coaction of surfactin and K. veneficum was also evaluated through toxicological experiments on Artemia and juvenile clams. The results showed that: (1) in the concentration range of 0–10 mg/L, surfactin significantly killed algal cells in a dose-dependent manner within 48 h; the 24 h EC50 was 3.065 mg/L; (2) K. veneficum had the ability to restore population growth after stress reduction and the restored proliferation was positively correlated with the initial surfactin concentration; (3) the ability to restore population growth was associated with protection afforded by the promotion of antioxidant enzymes, including catalase (CAT), peroxidase (POD) and superoxide dismutase (SOD), whose increase was positively correlated with the surfactin concentration; (4) the toxicity of the coculture of surfactin and K. veneficum was significantly greater than that of the K. veneficum culture or surfactin alone and was dose and time dependent. The potential ecological risks should be considered when applying biosurfactants, such as surfactin, in the removal of harmful algal blooms.
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18
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Vassaux A, Rannou M, Peers S, Daboudet T, Jacques P, Coutte F. Impact of the Purification Process on the Spray-Drying Performances of the Three Families of Lipopeptide Biosurfactant Produced by Bacillus subtilis. Front Bioeng Biotechnol 2022; 9:815337. [PMID: 35004661 PMCID: PMC8727909 DOI: 10.3389/fbioe.2021.815337] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 11/23/2021] [Indexed: 12/30/2022] Open
Abstract
Lipopeptides produced by Bacillus subtilis display many activities (surfactant, antimicrobial, and antitumoral), which make them interesting compounds with a wide range of applications. During the past years, several processes have been developed to enable their production and purification with suitable yield and purity. The already implemented processes mainly end with a critical drying step, which is currently achieved by freeze-drying. In this study, the possibility to replace this freeze-drying step with a spray-drying one, more suited to industrial applications, was analyzed. After evaluating their thermal resistance, we have developed a spray-drying methodology applicable for the three lipopeptides families produced by B. subtilis, i.e., surfactin, mycosubtilin (iturin family), and plipastatin (fengycin family). For each lipopeptide, the spray-drying procedure was applied at three steps of the purification process by ultrafiltration (supernatant, diafiltered solution, and pre-purified fraction). The analysis of the activities of each spray-dried lipopeptide showed that this drying method is not decreasing its antimicrobial and biosurfactant properties. The methodology developed in this study enabled for the first time the spray-drying of surfactin, without adjuvants’ addition and regardless of the purification step considered. In the case of fengycin and mycosubtilin, only diafiltered solution and purified fraction could be successfully spray-dried without the addition of adjuvant. Maltodextrin addition was also investigated as the solution for the direct drying of supernatant. As expected, the performances of the spray-drying step and the purity of the powder obtained are highly related to the purification step at which the product was dried. Interestingly, the impact of mycosubtilin concentration on spray-drying yield was also evidenced.
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Affiliation(s)
- Antoine Vassaux
- Université de Lille, UMRt BioEcoAgro 1158-INRAE, Équipe Métabolites Secondaires d'Origine Microbienne, Institut Charles Viollette, Lille, France
| | - Marie Rannou
- Université de Lille, UMRt BioEcoAgro 1158-INRAE, Équipe Métabolites Secondaires d'Origine Microbienne, Institut Charles Viollette, Lille, France
| | | | - Théo Daboudet
- Université de Lille, UMRt BioEcoAgro 1158-INRAE, Équipe Métabolites Secondaires d'Origine Microbienne, Institut Charles Viollette, Lille, France
| | - Philippe Jacques
- LIPOFABRIK, Villeneuve d'Ascq, France.,TERRA Teaching and Research Centre, Université de Liège, UMRt BioEcoAgro 1158-INRAE, Équipe Métabolites Secondaires D'origine Microbienne, MiPI, Gembloux Agro-Bio Tech, Gembloux, Belgium
| | - François Coutte
- Université de Lille, UMRt BioEcoAgro 1158-INRAE, Équipe Métabolites Secondaires d'Origine Microbienne, Institut Charles Viollette, Lille, France.,LIPOFABRIK, Villeneuve d'Ascq, France
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19
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Wójtowicz K, Czogalla A, Trombik T, Łukaszewicz M. Surfactin cyclic lipopeptides change the plasma membrane composition and lateral organization in mammalian cells. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2021; 1863:183730. [PMID: 34419486 DOI: 10.1016/j.bbamem.2021.183730] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 07/10/2021] [Accepted: 08/13/2021] [Indexed: 02/07/2023]
Abstract
The specific structure and composition of the cell plasma membrane (PM) is crucial for many cellular processes and can be targeted by various substances with potential medical applications. In this context, biosurfactants (BS) constitute a promising group of natural compounds that possess several biological functions, including anticancer activity. Despite the efficiency of BS, their mode of action had never been elucidated before. Here, we demonstrate the influence of cyclic lipopeptide surfactin (SU) on the PM of CHO-K1 cells. Both FLIM and svFCS experiments show that even a low concentration of SU causes significant changes in the membrane fluidity and dynamic molecular organization. Further, we demonstrate that SU causes a relevant dose-dependent reduction of cellular cholesterol by extracting it from the PM. Finally, we show that CHO-25RA cells characterized by increased cholesterol levels are more sensitive to SU treatment than CHO-K1 cells. We propose that sterols organizing the PM raft nanodomains, constitute a potential target for SU and other biosurfactants. In our opinion, the anticancer activity of biosurfactants is directly related with the higher cholesterol content found in many cancer cells.
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Affiliation(s)
- Karolina Wójtowicz
- Department of Biotransformation, Faculty of Biotechnology, University of Wrocław, Wrocław, Poland
| | - Aleksander Czogalla
- Department of Cytobiochemistry, Faculty of Biotechnology, University of Wrocław, Wrocław, Poland
| | - Tomasz Trombik
- Department of Biophysics, Faculty of Biotechnology, University of Wrocław, Wrocław, Poland.
| | - Marcin Łukaszewicz
- Department of Biotransformation, Faculty of Biotechnology, University of Wrocław, Wrocław, Poland.
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20
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Augustyn AR, Pott RW, Tadie M. The interactions of the biosurfactant surfactin in coal flotation. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127122] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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21
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Hoffmann M, Mück D, Grossmann L, Greiner L, Klausmann P, Henkel M, Lilge L, Weiss J, Hausmann R. Surfactin from Bacillus subtilis displays promising characteristics as O/W-emulsifier for food formulations. Colloids Surf B Biointerfaces 2021; 203:111749. [DOI: 10.1016/j.colsurfb.2021.111749] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 03/15/2021] [Accepted: 04/03/2021] [Indexed: 01/18/2023]
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22
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de Carvalho Silveira T, Gomes WE, Tonon GC, Beatto TG, Spogis N, Cunha LHD, Lattaro BP, Nogueira AB, Mendes RK, Alvarenga DO, Etchegaray A. Residual biomass from surfactin production is a source of arginase and adsorbed surfactin that is useful for environmental remediation. World J Microbiol Biotechnol 2021; 37:123. [PMID: 34160683 DOI: 10.1007/s11274-021-03094-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 06/01/2021] [Indexed: 10/21/2022]
Abstract
Lipopeptides are important secondary metabolites produced by microbes. They find applications in environmental decontamination and in the chemical, pharmaceutical and food industries. However, their production is expensive. In the present work we propose three strategies to lower the production costs of surfactin. First, the coproduction of surfactin and arginase in a single growth. Second, extract the fraction of surfactin that adsorbs to the biomass and is removed from the growth medium through centrifugation. Third, use microbial biomass for the remediation of organic and inorganic contaminants. The coproduction of surfactin and arginase was evaluated by factorial design experiments using the LB medium supplemented with arginine. The best conditions for surfactin production were 22 h of growth at 37 °C using LB supplemented with arginine 7.3 g/L. Almost similar conditions were found to produce highest levels of arginase, 24 h and 6.45 g/L arginine. Decontamination of phenol and copper from artificial samples was attained by treatment with residues from lipopeptide production. Thus, cell suspensions and wash-waters used to extract surfactin from the biomass. Cell suspensions were used to successfully remove hydroquinone. Cell suspensions and wash-waters containing surfactin were successfully used to recover copper from solution. Specific monitoring methods were used for phenol and metal solutions, respectively a biosensor based on tyrosinase and either atomic absorption flame ionization spectrometry or absorbance coupled to the Arduino™ platform. Therefore, we report three alternative strategies to lower the production costs in lipopeptide production, which include the effective recovery of copper and phenol from contaminated waters using residues from surfactin production. Sustainable and profitable production of surfactin can be achieved by a coproduction strategy of lipopeptides and enzymes. Lipopeptides are collected in the supernatant and enzymes in the biomass. In addition, lipopeptides that coprecipitate with biomass can be recovered by washing. Lipopeptide wash-waters find applications in remediation and cells can also be used for environmental decontamination.
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Affiliation(s)
- Thais de Carvalho Silveira
- Programa de Pós-Graduação em Ciências da Saúde, Centro de Ciências da Vida, Pontifícia Universidade Católica de Campinas, Campinas, SP, Brasil
| | - Wyllerson Evaristo Gomes
- Programa de Pós-Graduação em Sistemas de Infraestrutura Urbana, Centro de Ciências Ambientais e de Tecnologias, Pontifícia Universidade Católica de Campinas, Campinas, SP, Brasil
| | - Giovana Chinaglia Tonon
- Faculdade de Química, Centro de Ciências Ambientais e de Tecnologias, Pontifícia Universidade Católica de Campinas (PUC-Campinas), Rua Professor Doutor Euryclides de Jesus Zerbini n° 1.516, Parque Rural Fazenda Santa Cândida, CEP 13087571, Campinas, SP, Brasil
| | - Thainá Godoy Beatto
- Programa de Pós-Graduação em Sistemas de Infraestrutura Urbana, Centro de Ciências Ambientais e de Tecnologias, Pontifícia Universidade Católica de Campinas, Campinas, SP, Brasil.,Faculdade de Química, Centro de Ciências Ambientais e de Tecnologias, Pontifícia Universidade Católica de Campinas (PUC-Campinas), Rua Professor Doutor Euryclides de Jesus Zerbini n° 1.516, Parque Rural Fazenda Santa Cândida, CEP 13087571, Campinas, SP, Brasil
| | - Nicolas Spogis
- Faculdade de Química, Centro de Ciências Ambientais e de Tecnologias, Pontifícia Universidade Católica de Campinas (PUC-Campinas), Rua Professor Doutor Euryclides de Jesus Zerbini n° 1.516, Parque Rural Fazenda Santa Cândida, CEP 13087571, Campinas, SP, Brasil
| | - Luiz Henrique Dallan Cunha
- Faculdade de Química, Centro de Ciências Ambientais e de Tecnologias, Pontifícia Universidade Católica de Campinas (PUC-Campinas), Rua Professor Doutor Euryclides de Jesus Zerbini n° 1.516, Parque Rural Fazenda Santa Cândida, CEP 13087571, Campinas, SP, Brasil
| | - Bruno Pera Lattaro
- Faculdade de Química, Centro de Ciências Ambientais e de Tecnologias, Pontifícia Universidade Católica de Campinas (PUC-Campinas), Rua Professor Doutor Euryclides de Jesus Zerbini n° 1.516, Parque Rural Fazenda Santa Cândida, CEP 13087571, Campinas, SP, Brasil
| | - Alessandra Borin Nogueira
- Faculdade de Química, Centro de Ciências Ambientais e de Tecnologias, Pontifícia Universidade Católica de Campinas (PUC-Campinas), Rua Professor Doutor Euryclides de Jesus Zerbini n° 1.516, Parque Rural Fazenda Santa Cândida, CEP 13087571, Campinas, SP, Brasil
| | - Renata Kelly Mendes
- Programa de Pós-Graduação em Sistemas de Infraestrutura Urbana, Centro de Ciências Ambientais e de Tecnologias, Pontifícia Universidade Católica de Campinas, Campinas, SP, Brasil.,Faculdade de Química, Centro de Ciências Ambientais e de Tecnologias, Pontifícia Universidade Católica de Campinas (PUC-Campinas), Rua Professor Doutor Euryclides de Jesus Zerbini n° 1.516, Parque Rural Fazenda Santa Cândida, CEP 13087571, Campinas, SP, Brasil
| | | | - Augusto Etchegaray
- Programa de Pós-Graduação em Ciências da Saúde, Centro de Ciências da Vida, Pontifícia Universidade Católica de Campinas, Campinas, SP, Brasil. .,Faculdade de Química, Centro de Ciências Ambientais e de Tecnologias, Pontifícia Universidade Católica de Campinas (PUC-Campinas), Rua Professor Doutor Euryclides de Jesus Zerbini n° 1.516, Parque Rural Fazenda Santa Cândida, CEP 13087571, Campinas, SP, Brasil.
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Janek T, Gudiña EJ, Połomska X, Biniarz P, Jama D, Rodrigues LR, Rymowicz W, Lazar Z. Sustainable Surfactin Production by Bacillus subtilis Using Crude Glycerol from Different Wastes. Molecules 2021; 26:molecules26123488. [PMID: 34201182 PMCID: PMC8230125 DOI: 10.3390/molecules26123488] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 06/04/2021] [Accepted: 06/04/2021] [Indexed: 11/16/2022] Open
Abstract
Most biosurfactants are obtained using costly culture media and purification processes, which limits their wider industrial use. Sustainability of their production processes can be achieved, in part, by using cheap substrates found among agricultural and food wastes or byproducts. In the present study, crude glycerol, a raw material obtained from several industrial processes, was evaluated as a potential low-cost carbon source to reduce the costs of surfactin production by Bacillus subtilis #309. The culture medium containing soap-derived waste glycerol led to the best surfactin production, reaching about 2.8 g/L. To the best of our knowledge, this is the first report describing surfactin production by B. subtilis using stearin and soap wastes as carbon sources. A complete chemical characterization of surfactin analogs produced from the different waste glycerol samples was performed by liquid chromatography-mass spectrometry (LC-MS) and Fourier transform infrared spectroscopy (FTIR). Furthermore, the surfactin produced in the study exhibited good stability in a wide range of pH, salinity and temperatures, suggesting its potential for several applications in biotechnology.
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Affiliation(s)
- Tomasz Janek
- Department of Biotechnology and Food Microbiology, Wrocław University of Environmental and Life Sciences, 51-630 Wrocław, Poland; (X.P.); (P.B.); (D.J.); (W.R.); (Z.L.)
- Correspondence: ; Tel.: +48-71-320-7734
| | - Eduardo J. Gudiña
- Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal; (E.J.G.); (L.R.R.)
| | - Xymena Połomska
- Department of Biotechnology and Food Microbiology, Wrocław University of Environmental and Life Sciences, 51-630 Wrocław, Poland; (X.P.); (P.B.); (D.J.); (W.R.); (Z.L.)
| | - Piotr Biniarz
- Department of Biotechnology and Food Microbiology, Wrocław University of Environmental and Life Sciences, 51-630 Wrocław, Poland; (X.P.); (P.B.); (D.J.); (W.R.); (Z.L.)
- Łukasiewicz Research Network—PORT Polish Center for Technology Development, 54-066 Wrocław, Poland
| | - Dominika Jama
- Department of Biotechnology and Food Microbiology, Wrocław University of Environmental and Life Sciences, 51-630 Wrocław, Poland; (X.P.); (P.B.); (D.J.); (W.R.); (Z.L.)
| | - Lígia R. Rodrigues
- Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal; (E.J.G.); (L.R.R.)
| | - Waldemar Rymowicz
- Department of Biotechnology and Food Microbiology, Wrocław University of Environmental and Life Sciences, 51-630 Wrocław, Poland; (X.P.); (P.B.); (D.J.); (W.R.); (Z.L.)
| | - Zbigniew Lazar
- Department of Biotechnology and Food Microbiology, Wrocław University of Environmental and Life Sciences, 51-630 Wrocław, Poland; (X.P.); (P.B.); (D.J.); (W.R.); (Z.L.)
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Influence of the Medium Composition and the Culture Conditions on Surfactin Biosynthesis by a Native Bacillus subtilis natto BS19 Strain. Molecules 2021; 26:molecules26102985. [PMID: 34069825 PMCID: PMC8157257 DOI: 10.3390/molecules26102985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 05/13/2021] [Accepted: 05/14/2021] [Indexed: 11/16/2022] Open
Abstract
An effective microbial synthesis of surfactin depends on the composition of the culture medium, the culture conditions and the genetic potential of the producer strain. The aim of this study was to evaluate the suitability of various medium components for the surfactin producing strain and to determine the impact of the culture conditions on the biosynthesis of surfactin isoforms by the newly isolated native strain Bacillus subtilis natto BS19. The efficiency of surfactin biosynthesis was determined by measuring the surface tension of the medium before and after submerged culture (SmF) and by qualitative and quantitative analysis of the obtained compound by high performance liquid chromatography. The highest efficiency of surfactin biosynthesis was achieved using starch as the carbon source and yeast extract as the nitrogen source at pH 7.0 and 37 °C. Potato peelings were selected as an effective waste substrate. It was shown that the increase in the percentage of peel extract in the culture medium enhanced the biosynthesis of surfactin (mg/L) (2-30.9%; 4-46.0% and 6-58.2%), while reducing surface tension of the medium by about 50%. The obtained results constitute a promising basis for further research on biosynthesis of surfactin using potato peelings as a cheap alternative to synthetic medium components.
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25
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Mei Y, Yang Z, Kang Z, Yu F, Long X. Enhanced surfactin fermentation via advanced repeated fed-batch fermentation with increased cell density stimulated by EDTA–Fe (II). FOOD AND BIOPRODUCTS PROCESSING 2021. [DOI: 10.1016/j.fbp.2021.03.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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26
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Moldes AB, Rodríguez-López L, Rincón-Fontán M, López-Prieto A, Vecino X, Cruz JM. Synthetic and Bio-Derived Surfactants Versus Microbial Biosurfactants in the Cosmetic Industry: An Overview. Int J Mol Sci 2021; 22:ijms22052371. [PMID: 33673442 PMCID: PMC7956807 DOI: 10.3390/ijms22052371] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 02/18/2021] [Accepted: 02/22/2021] [Indexed: 11/17/2022] Open
Abstract
This article includes an updated review of the classification, uses and side effects of surfactants for their application in the cosmetic, personal care and pharmaceutical industries. Based on their origin and composition, surfactants can be divided into three different categories: (i) synthetic surfactants; (ii) bio-based surfactants; and (iii) microbial biosurfactants. The first group is the most widespread and cost-effective. It is composed of surfactants, which are synthetically produced, using non-renewable sources, with a final structure that is different from the natural components of living cells. The second category comprises surfactants of intermediate biocompatibility, usually produced by chemical synthesis but integrating fats, sugars or amino acids obtained from renewable sources into their structure. Finally, the third group of surfactants, designated as microbial biosurfactants, are considered the most biocompatible and eco-friendly, as they are produced by living cells, mostly bacteria and yeasts, without the intermediation of organic synthesis. Based on the information included in this review it would be interesting for cosmetic, personal care and pharmaceutical industries to consider microbial biosurfactants as a group apart from surfactants, needing specific regulations, as they are less toxic and more biocompatible than chemical surfactants having formulations that are more biocompatible and greener.
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Affiliation(s)
- Ana B. Moldes
- Chemical Engineering Department, School of Industrial Engineering—Cintecx, Campus As Lagoas-Marcosende, University of Vigo, 36310 Vigo, Spain; (L.R.-L.); (M.R.-F.); (A.L.-P.); (J.M.C.)
- Correspondence: (A.B.M.); (X.V.)
| | - Lorena Rodríguez-López
- Chemical Engineering Department, School of Industrial Engineering—Cintecx, Campus As Lagoas-Marcosende, University of Vigo, 36310 Vigo, Spain; (L.R.-L.); (M.R.-F.); (A.L.-P.); (J.M.C.)
| | - Myriam Rincón-Fontán
- Chemical Engineering Department, School of Industrial Engineering—Cintecx, Campus As Lagoas-Marcosende, University of Vigo, 36310 Vigo, Spain; (L.R.-L.); (M.R.-F.); (A.L.-P.); (J.M.C.)
| | - Alejandro López-Prieto
- Chemical Engineering Department, School of Industrial Engineering—Cintecx, Campus As Lagoas-Marcosende, University of Vigo, 36310 Vigo, Spain; (L.R.-L.); (M.R.-F.); (A.L.-P.); (J.M.C.)
| | - Xanel Vecino
- Chemical Engineering Department, School of Industrial Engineering—Cintecx, Campus As Lagoas-Marcosende, University of Vigo, 36310 Vigo, Spain; (L.R.-L.); (M.R.-F.); (A.L.-P.); (J.M.C.)
- Chemical Engineering Department, Barcelona East School of Engineering (EEBE)—Barcelona Research Center for Multiscale Science and Engineering, Campus Diagonal-Besòs, Polytechnic University of Catalonia (UPC), 08930 Barcelona, Spain
- Correspondence: (A.B.M.); (X.V.)
| | - José M. Cruz
- Chemical Engineering Department, School of Industrial Engineering—Cintecx, Campus As Lagoas-Marcosende, University of Vigo, 36310 Vigo, Spain; (L.R.-L.); (M.R.-F.); (A.L.-P.); (J.M.C.)
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Hentati D, Cheffi M, Hadrich F, Makhloufi N, Rabanal F, Manresa A, Sayadi S, Chamkha M. Investigation of halotolerant marine Staphylococcus sp. CO100, as a promising hydrocarbon-degrading and biosurfactant-producing bacterium, under saline conditions. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 277:111480. [PMID: 33045647 DOI: 10.1016/j.jenvman.2020.111480] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Revised: 09/14/2020] [Accepted: 09/29/2020] [Indexed: 06/11/2023]
Abstract
A halotolerant strain CO100 of Staphylococcus sp. was isolated from contaminated sediments taken from the fishing harbour of Sfax, Tunisia, as an efficient hydrocarbonoclastic candidate. Strain CO100 exhibited a high capacity to break down almost 72% of the aliphatic hydrocarbons contained in crude oil (1%, v/v), used as the sole carbon and energy source, after 20 days of culture, at 100 g/l NaCl, 37 °C and 180 rpm. The isolate CO100 displayed also its ability to grow on phenanthrene, fluoranthene and pyrene (100 mg/l), at 100 g/l NaCl. Moreover, the isolate CO100 showed a notable aptitude to synthesize an efficient tensioactive agent namely BS-CO100, on low-value substrates including residual frying oil and expired milk powder, thus reducing the high cost of biosurfactant production. The ESI/MS analysis designated that BS-CO100 belonged to lipopeptide class, in particular lichenysin and iturine members. Critical micelle concentrations of BS-CO100 were varying between 65 and 750 mg/l, depending on of the purity of the biosurfactant and the used carbon sources. BS-CO100 showed a high steadiness against a wide spectrum of pH (4.3-12), temperature (4-121 °C) and salinity (0-300 g/l NaCl), supporting its powerful tensioactive properties under various environmental conditions. Likewise, BS-CO100 exhibited no cytotoxic effect toward human HEK293 cells, at concentrations within 125 and 1000 μg/ml. Furthermore, the biosurfactant BS-CO100 exhibited remarkable anti-adhesive and anti-biofilm activities, being able to avoid and disrupt the biofilm formation by certain pathogenic microorganisms. In addition, BS-CO100 was found to have more potential to remove hydrocarbons from contaminated soils, compared to some chemical surfactants. In light of these promising findings, strain CO100, as well as its biosurfactant, could be successfully used in different biotechnological applications including the bioremediation of oil-polluted areas, even under saline conditions.
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Affiliation(s)
- Dorra Hentati
- Laboratory of Environmental Bioprocesses, Centre of Biotechnology of Sfax, University of Sfax, PO Box 1177, 3018, Sfax, Tunisia
| | - Meriam Cheffi
- Laboratory of Environmental Bioprocesses, Centre of Biotechnology of Sfax, University of Sfax, PO Box 1177, 3018, Sfax, Tunisia
| | - Fatma Hadrich
- Laboratory of Environmental Bioprocesses, Centre of Biotechnology of Sfax, University of Sfax, PO Box 1177, 3018, Sfax, Tunisia
| | - Neila Makhloufi
- Laboratory of Environmental Bioprocesses, Centre of Biotechnology of Sfax, University of Sfax, PO Box 1177, 3018, Sfax, Tunisia
| | - Francesc Rabanal
- Section of Organic Chemistry, Department of Inorganic and Organic Chemistry, Faculty of Chemistry, University of Barcelona, Martíi Franquès, 1, 08028, Barcelona, Spain
| | - Angeles Manresa
- Section of Microbiology, Department of Biology, Health and Environment, Faculty of Pharmacy, University of Barcelona, Joan XXIII s/n, 08028, Barcelona, Spain
| | - Sami Sayadi
- Center of Sustainable Development, College of Arts and Sciences, Qatar University, 2713, Doha, Qatar
| | - Mohamed Chamkha
- Laboratory of Environmental Bioprocesses, Centre of Biotechnology of Sfax, University of Sfax, PO Box 1177, 3018, Sfax, Tunisia.
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Microbial-derived glycolipids in the sustainable formulation of biomedical and personal care products: A consideration of the process economics towards commercialization. Process Biochem 2021. [DOI: 10.1016/j.procbio.2020.10.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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29
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Abuduaini X, Aili A, Lin R, Song G, Huang Y, Chen Z, Zhao H, Luo Q, Zhao H. The Lethal Effect of Bacillus subtilis Z15 Secondary Metabolites on Verticillium dahliae. Nat Prod Commun 2021. [DOI: 10.1177/1934578x20986728] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Bacillus subtilis Z15 (BS-Z15), isolated from cotton rhizosphere soil, inhibits Verticillium dahliae and suppresses cotton Verticillium wilt in pot experiments. We investigated the influence of environmental factors, pH, temperature, ultraviolet light, protease, and incubation time on the stability of BS-Z15 secondary metabolites (SMs), and the mechanism underlying the cytotoxicity of BS-Z15 SMs on V. dahliae. BS-Z15 and its fermentation broth inhibited V. dahliae, and this effect was mediated by its SMs. These were shown to be stable to the influence of the above environmental factors. BS-Z15 SMs decreased the viability of V. dahliae conidia in a time-dependent manner. Scanning electron microscopy showed that BS-Z15 and its SMs resulted in flattened and depressed conidia. BS-Z15 SMs induced morphological abnormalities in the hyphae, which showed rough aberrant structures, reduced conidiophore production, and accelerated aging. Flow cytometry using Hoechst/propidium iodide double staining revealed that BS-Z15 SMs induced necrosis in V. dahliae in a time-dependent manner. Fluorescence microscopy showed that BS-Z15 SMs did not induce apoptotic bodies in the conidia of V. dahliae but caused significant changes in karyotypes, accompanied by nuclear lysis and nucleic-acid diffusion, which may play important roles in necrosis. In addition, 0.3 mg/mL BS-Z15 SMs had no effect on either the mitochondrial membrane potential or the synthesis of proapoptotic proteins, indicating that the SMs did not induce apoptosis in V. dahliae. Their lethal effect on V. dahliae was by inducing necrosis in its conidia and hyphae. BS-Z15 SMs thus have potential as biological pesticides to control Verticillium wilt in cotton.
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Affiliation(s)
- Xieerwanimu Abuduaini
- Key Laboratory of Plant Stress Biology in Arid Land, College of Life Science, Xinjiang Normal University, Urumqi, P. R. China
| | - Ailina Aili
- Key Laboratory of Plant Stress Biology in Arid Land, College of Life Science, Xinjiang Normal University, Urumqi, P. R. China
| | - Rongrong Lin
- Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Science, Beijing Normal University, Beijing, P. R. China
| | - Ganggang Song
- Key Laboratory of Plant Stress Biology in Arid Land, College of Life Science, Xinjiang Normal University, Urumqi, P. R. China
| | - Yu Huang
- Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Science, Beijing Normal University, Beijing, P. R. China
| | - Zhongyi Chen
- Key Laboratory of Plant Stress Biology in Arid Land, College of Life Science, Xinjiang Normal University, Urumqi, P. R. China
- Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Science, Beijing Normal University, Beijing, P. R. China
| | - Heping Zhao
- Key Laboratory of Plant Stress Biology in Arid Land, College of Life Science, Xinjiang Normal University, Urumqi, P. R. China
- Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Science, Beijing Normal University, Beijing, P. R. China
| | - Qin Luo
- Tumor Hospital Affiliated Xinjiang Medical University, Urumqi, Xinjiang, P. R. China
| | - Huixin Zhao
- Key Laboratory of Plant Stress Biology in Arid Land, College of Life Science, Xinjiang Normal University, Urumqi, P. R. China
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Kang BR, Park JS, Jung WJ. Antifungal evaluation of fengycin isoforms isolated from Bacillus amyloliquefaciens PPL against Fusarium oxysporum f. sp. lycopersici. Microb Pathog 2020; 149:104509. [DOI: 10.1016/j.micpath.2020.104509] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 07/28/2020] [Accepted: 09/16/2020] [Indexed: 02/07/2023]
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31
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Park T, Yoon S, Jung J, Kwon TH. Effect of Fluid-Rock Interactions on In Situ Bacterial Alteration of Interfacial Properties and Wettability of CO 2-Brine-Mineral Systems for Geologic Carbon Storage. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:15355-15365. [PMID: 33186009 DOI: 10.1021/acs.est.0c05772] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
This study explored the feasibility of biosurfactant amendment in modifying the interfacial characteristics of carbon dioxide (CO2) with rock minerals under high-pressure conditions for GCS. In particular, while varying the CO2 phase and the rock mineral, we quantitatively examined the production of biosurfactants by Bacillus subtilis and their effects on interfacial tension (IFT) and wettability in CO2-brine-mineral systems. The results demonstrated that surfactin produced by B. subtilis caused the reduction of CO2-brine IFT and modified the wettability of both quartz and calcite minerals to be more CO2-wet. The production yield of surfactin was substantially greater with the calcite mineral than with the quartz mineral. The calcite played the role of a pH buffer, consistently maintaining the brine pH above 6. By contrast, an acidic condition in CO2-brine-quartz systems caused the precipitation of surfactin, and hence surfactin lost its ability as a surface-active agent. Meanwhile, the CO2-driven mineral dissolution and precipitation in CO2-brine-calcite systems under a non-equilibrium system altered the solid substrates, produced surface roughness, and caused contact angle variations. These results provide unique experimental data on biosurfactant-mediated interfacial properties and wettability in GCS-relevant conditions, which support the exploitation of in situ biosurfactant production for biosurfactant-aided CO2 injection.
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Affiliation(s)
- Taehyung Park
- Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Korea
| | - Sukhwan Yoon
- Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Korea
| | - Jongwon Jung
- School of Civil Engineering, Chungbuk National University, Chungbuk 28644, Korea
| | - Tae-Hyuk Kwon
- Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Korea
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32
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Rocha PM, Dos Santos Mendes AC, de Oliveira Júnior SD, de Araújo Padilha CE, de Sá Leitão ALO, da Costa Nogueira C, de Macedo GR, Dos Santos ES. Kinetic study and characterization of surfactin production by Bacillus subtilis UFPEDA 438 using sugarcane molasses as carbon source. Prep Biochem Biotechnol 2020; 51:300-308. [PMID: 32914662 DOI: 10.1080/10826068.2020.1815055] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The present study evaluated the surfactin production by Bacillus subtilis UFPEDA 438 using sugarcane molasses as a substrate. The effects of the cultivation conditions (temperature, agitation and aeration ratio) on the biosurfactant production and kinetic parameters were investigated. Characteristics of the biosurfactant were obtained after analyses of the emulsification index (EI) and critical micellar concentration (CMC) of the fermentation broth. The results showed that in relation to the product its formation kinetics is strongly affected by operational conditions. It was also observed that surfactin production can be partially dependent or fully independent on microbial growth. The maximum values of surfactin concentration (199.45 ± 0.13 mg/L) and productivity (8,187 mg/L.h) were obtained in the culture under cultivation time of 24 h, temperature of 36 °C, agitation of 100 rpm and aeration ratio of 0.4. Under optimal conditions, the fermentation broth achieved good emulsification capacity (EI >40%) and CMC value of 20.73 mg/L. The results revealed that Bacillus subtilis UFPEDA 438 is a good producer of biosurfactant and that sugarcane molasses is a viable substrate for the production of surfactin.
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Affiliation(s)
- Patrícia Maria Rocha
- Chemical Engineering Department, Biochemical Engineering Laboratory, Federal University of Rio Grande do Norte (UFRN), Natal, RN, Brazil
| | - Ana Carmen Dos Santos Mendes
- Chemical Engineering Department, Biochemical Engineering Laboratory, Federal University of Rio Grande do Norte (UFRN), Natal, RN, Brazil
| | - Sérgio Dantas de Oliveira Júnior
- Chemical Engineering Department, Biochemical Engineering Laboratory, Federal University of Rio Grande do Norte (UFRN), Natal, RN, Brazil
| | - Carlos Eduardo de Araújo Padilha
- Chemical Engineering Department, Biochemical Engineering Laboratory, Federal University of Rio Grande do Norte (UFRN), Natal, RN, Brazil
| | - Ana Laura Oliveira de Sá Leitão
- Chemical Engineering Department, Biochemical Engineering Laboratory, Federal University of Rio Grande do Norte (UFRN), Natal, RN, Brazil
| | - Cleitiane da Costa Nogueira
- Chemical Engineering Department, Biochemical Engineering Laboratory, Federal University of Rio Grande do Norte (UFRN), Natal, RN, Brazil
| | - Gorete Ribeiro de Macedo
- Chemical Engineering Department, Biochemical Engineering Laboratory, Federal University of Rio Grande do Norte (UFRN), Natal, RN, Brazil
| | - Everaldo Silvino Dos Santos
- Chemical Engineering Department, Biochemical Engineering Laboratory, Federal University of Rio Grande do Norte (UFRN), Natal, RN, Brazil
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Bastrzyk A, Fiedot-Toboła M, Maniak H, Polowczyk I, Płaza G. Surfactin as a Green Agent Controlling the Growth of Porous Calcite Microstructures. Int J Mol Sci 2020; 21:ijms21155526. [PMID: 32752269 PMCID: PMC7432438 DOI: 10.3390/ijms21155526] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 07/27/2020] [Accepted: 07/31/2020] [Indexed: 12/02/2022] Open
Abstract
This study presents a new, simple way to obtain mesoporous calcite structures via a green method using an eco-friendly surface-active compound, surfactin, as a controlling agent. The effects of synthesis time and surfactin concentration were investigated. The obtained structures were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC) coupled with gas mass spectrometry (QMS) analysis. The experimental data showed that surfactin molecules significantly changed the morphology of the calcite crystals, roughening and deforming the surface and creating a greater specific surface area, even at low biosurfactant concentrations (10 ppm). The size of the crystals was reduced, and the zeta potential value of calcium carbonate was more negative when more biosurfactant was added. The XRD data revealed that the biomolecules were incorporated into the crystals and slowed the transformation of vaterite into calcite. It has been shown that as long as vaterite is present in the medium, the calcite surface will be less deformed. The strong influence of surfactin molecules on the crystal growth of calcium carbonate was due to the interaction of surfactin molecules with free calcium ions in the solution as well as the biomolecules adsorption at the formed crystal surface. The role of micelles in crystal growth was examined, and the mechanism of mesoporous calcium carbonate formation was presented.
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Affiliation(s)
- Anna Bastrzyk
- Department of Process Engineering and Technology of Polymer and Carbon Materials, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland;
- Correspondence: (A.B.); (M.F.-T.); Tel.: +48-71-320-32-39 (A.B.); +48-71-734-71-54 (M.F.-T.)
| | - Marta Fiedot-Toboła
- Łukasiewicz Research Network-PORT Polish Center for Technology Development, Stabłowicka 147, 54-066 Wrocław, Poland
- Correspondence: (A.B.); (M.F.-T.); Tel.: +48-71-320-32-39 (A.B.); +48-71-734-71-54 (M.F.-T.)
| | - Halina Maniak
- Department of Micro, Nano and Bioprocess Engineering, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland;
| | - Izabela Polowczyk
- Department of Process Engineering and Technology of Polymer and Carbon Materials, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland;
| | - Grażyna Płaza
- Department of Environmental Microbiology, Institute for Ecology of Industrial Areas, Kossutha 6, 40-844 Katowice, Poland;
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Khurana H, Sharma M, Verma H, Lopes BS, Lal R, Negi RK. Genomic insights into the phylogeny of Bacillus strains and elucidation of their secondary metabolic potential. Genomics 2020; 112:3191-3200. [PMID: 32512145 DOI: 10.1016/j.ygeno.2020.06.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 05/17/2020] [Accepted: 06/02/2020] [Indexed: 12/16/2022]
Abstract
The genus Bacillus constitutes a plethora of species that have medical, environmental, and industrial applications. While genus Bacillus has been the focus of several studies where genomic data have been used to resolve many taxonomic issues, there still exist several ambiguities. Through the use of in-silico genome-based methods, we tried to resolve the taxonomic anomalies of a large set of Bacillus genomes (n = 178). We also proposed species names for uncharacterized strains and reported genome sequence of a novel isolate Bacillus sp. RL. In the hierarchical clustering on genome-to-genome distances, we observed 11 distinct monophyletic clusters and investigated the functional pathways annotated as the property of these clusters and core-gene content of the entire dataset. Thus, we were able to assert the possible outlier strains (n = 17) for this genus. Analyses of secondary metabolite potential of each strain helped us unravel still unexplored diversity for various biosynthetic genes.
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Affiliation(s)
- Himani Khurana
- Fish Molecular Biology Laboratory, Department of Zoology, University of Delhi, Delhi 110007, India
| | - Monika Sharma
- Fish Molecular Biology Laboratory, Department of Zoology, University of Delhi, Delhi 110007, India
| | - Helianthous Verma
- Molecular Biology and Genomics Research Laboratory, Ramjas College, University of Delhi, Delhi 110007, India
| | - Bruno Silvester Lopes
- School of Medicine, Medical Sciences and Nutrition, Medical Microbiology, 0:025 Polwarth Building, Aberdeen AB25 2ZD, UK
| | - Rup Lal
- The Energy and Resources Institute, Darbari Seth Block, IHC Complex, Lodhi Road, New Delhi 110003, India.
| | - Ram Krishan Negi
- Fish Molecular Biology Laboratory, Department of Zoology, University of Delhi, Delhi 110007, India.
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Evaluation of various methods of selection of B. subtilis strains capable of secreting surface-active compounds. PLoS One 2019; 14:e0225108. [PMID: 31715626 PMCID: PMC6850892 DOI: 10.1371/journal.pone.0225108] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 10/28/2019] [Indexed: 12/13/2022] Open
Abstract
The aim of the study was the evaluation of a three-step method for the selection of bacterial strains capable of producing surfactin. The procedure consisted of the following steps: 1.blood agar test, 2. measurement of the surface tension (ST) of the medium using the du Nouy method before and after submerged culture, 3. qualitative and quantitative assessment of surfactin by HPLC. Forty five Bacillus subtilis natto strains producing haemolysis zones (≥3mm) were selected. Nineten of them reduced ST of the medium to ≤ 40 mN/m; in six cases, the reduction was as much as 50%. All indicated strains produced surfactin. Positive correlations (p <0.5) between the percentage reduction of ST of the medium and surfactin concentration (r = 0.44), indicate that this parameter is determinant of the ability to synthesize this compound. The blood agar test has been shown to be useful only as a pre-selection criterion for surfactin producers (18 strains selected by this method reduced ST by only ≤30%). The proposed selection strategy proved effective and made it possible to select the BS15 strain that reduced the ST of the medium to 30.56 ± 0.15 mN/m and simultaneously provided a high concentration of surfactin compared to other strains.
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Jakinala P, Lingampally N, Kyama A, Hameeda B. Enhancement of atrazine biodegradation by marine isolate Bacillus velezensis MHNK1 in presence of surfactin lipopeptide. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 182:109372. [PMID: 31255866 DOI: 10.1016/j.ecoenv.2019.109372] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 05/15/2019] [Accepted: 06/19/2019] [Indexed: 06/09/2023]
Abstract
Atrazine is one of the widely used toxic herbicide and considered as serious environmental contaminant worldwide due to its long term use in crop production. In this study, the effect of surfactin lipopeptide produced by Bacillus velezensis MHNK1 on atrazine biodegradation was investigated. B. velezensis MHNK1 produced 0.83 ± 0.07 g/L of anionic biosurfactant that reduced surface tension from 72.12 ± 0.02 to 33.2 ± 0.61 mN/m and CMC was 40 mg/L with 85.21 ± 1.60% emulsification index. Further, biosurfactant was characterized as surfactin by TLC, HPLC, FTIR, 1H and 13C NMR and LCMS-ESI. B. velezensis MHNK1 showed 87.10 ± 3.10% atrazine biodegradation within 5 days which was revealed by HPLC and MS analysis. Atrazine biodegradation using a combination of B. velezensis MHNK1 (2%) and surfactin (2 CMC) resulted in 100 ± 1.20% degradation within 4 days. Presence of atrazine degrading genes in B. velezensis MHNK1 was also confirmed by PCR. To the best of our knowledge, there are no previous reports available on atrazine degradation using B. velezensis strain and also in combination with surfactin. The results of this study reveal that strain B. velezensis MHNK1 and surfactin can be potential source of ecofriendly application for removal of atrazine from contaminated sites.
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Affiliation(s)
| | | | - Archana Kyama
- Department of Microbiology, Osmania University, Hyderabad, India
| | - Bee Hameeda
- Department of Microbiology, Osmania University, Hyderabad, India.
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Peptidoglycan-Associated Cyclic Lipopeptide Disrupts Viral Infectivity. J Virol 2019; 93:JVI.01282-19. [PMID: 31462558 PMCID: PMC6819921 DOI: 10.1128/jvi.01282-19] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Accepted: 08/17/2019] [Indexed: 12/23/2022] Open
Abstract
In this article, we consider a role for bacteria in shaping coronavirus infection. Taking cues from studies of enteric viruses, we initially investigated how bacterial surface components might improve CoV infection. Instead, we found that peptidoglycan-associated surfactin is a potent viricidal compound that disrupts virion integrity with broad activity against enveloped viruses. Our results indicate that interactions with commensal bacterial may improve or disrupt viral infections, highlighting the importance of understanding these microbial interactions and their implications for viral pathogenesis and treatment. Enteric viruses exploit bacterial components, including lipopolysaccharides (LPS) and peptidoglycan (PG), to facilitate infection in humans. Because of their origin in the bat enteric system, we wondered if severe acute respiratory syndrome coronavirus (SARS-CoV) or Middle East respiratory syndrome CoV (MERS-CoV) also use bacterial components to modulate infectivity. To test this question, we incubated CoVs with LPS and PG and evaluated infectivity, finding no change following LPS treatment. However, PG from Bacillus subtilis reduced infection >10,000-fold, while PG from other bacterial species failed to recapitulate this. Treatment with an alcohol solvent transferred inhibitory activity to the wash, and mass spectrometry revealed surfactin, a cyclic lipopeptide antibiotic, as the inhibitory compound. This antibiotic had robust dose- and temperature-dependent inhibition of CoV infectivity. Mechanistic studies indicated that surfactin disrupts CoV virion integrity, and surfactin treatment of the virus inoculum ablated infection in vivo. Finally, similar cyclic lipopeptides had no effect on CoV infectivity, and the inhibitory effect of surfactin extended broadly to enveloped viruses, including influenza, Ebola, Zika, Nipah, chikungunya, Una, Mayaro, Dugbe, and Crimean-Congo hemorrhagic fever viruses. Overall, our results indicate that peptidoglycan-associated surfactin has broad viricidal activity and suggest that bacteria by-products may negatively modulate virus infection. IMPORTANCE In this article, we consider a role for bacteria in shaping coronavirus infection. Taking cues from studies of enteric viruses, we initially investigated how bacterial surface components might improve CoV infection. Instead, we found that peptidoglycan-associated surfactin is a potent viricidal compound that disrupts virion integrity with broad activity against enveloped viruses. Our results indicate that interactions with commensal bacterial may improve or disrupt viral infections, highlighting the importance of understanding these microbial interactions and their implications for viral pathogenesis and treatment.
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Lamsal BP, Patra P, Sharma R, Green CC. Production of Non-Toxic Biosurfactant – Surfactin – Through Microbial Fermentation of Biomass Hydrolysates for Industrial and Environmental Applications. TENSIDE SURFACT DET 2019. [DOI: 10.3139/113.110644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
The economically viable large-scale production of the pure isoforms of the surfactin biosurfactants, involving bacterial – Bacillus subtilis – fermentation of biomass hydrolysate feedstock, relies on the types of bacterial strains, optimization of the fermentation processing parameters, differences in the composition of the carbon and nitrogen in the bacterial media, and the chromatography techniques used for isolation of the isoforms. Here, we biosynthesized the surfactin isoforms in their mixture forms through fermentation of biomass hydrolysates at 2 wt.% carbohydrate content. The surfactin isoforms were assessed for their surface-active properties and toxicity. The enzyme hydrolysates considered were from switchgrass, soyhull (fiber), alfalfa, and bagasse. The isoform mixtures obtained after fermentation of the hydrolysates and, glucose as a control, were concentrated using chromatography columns, and characterized for molecular weights (MWs) and relative distribution using LCMS. The isoform mixtures, obtained in different fermenters (5- and 15-L) and, for different hydrolysates, invariably constituted 5 isoforms with MWs as 992.6, 1006.6, 1020.6, 1034.6, 1048.6, 1062.6 m/z amu, with their relative proportions as 6, 24, 35, 24, and 10 weight % respectively. The surface tension values of all these isoforms, in the absence of electrolytes and at 12 ppt salinity, were similar: 37 (pH 6.5) and 31 (pH 9.5) mN/m. Furthermore, the emulsification index values for the isoforms were also similar: Dispersant-to-Oil ratio as 1:20. The LC50 for Gulf killifish, Fundulus grandis for these surfactin isoforms ranged between 10 and 20 mg/L; a microbially-produced surfactin variant FA-Glu (Fatty acid Glutamate) was least toxic with LC50 at ∼100 mg/L. Thus, the surfactin synthesis approach adopted here suggested that pure (>95 wt.%) non-toxic isoforms of surfactin biosurfactants can be produced in the forms of their mixtures with surface-active properties similar to those of the pure forms of the surfactin isoforms.
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Affiliation(s)
- Buddhi P. Lamsal
- Iowa State University , Food Science and Human Nutrition, 536 Farm House Lane, Ames, IA , 50011
| | - Pathra Patra
- Columbia University , Earth and Environmental Engineering, 500 W. 120th St., 918 Mudd, New York , NY 10027
| | - Rajat Sharma
- Iowa State University , Food Science and Human Nutrition, 536 Farm House Lane, Ames, IA , 50011
| | - Christopher C. Green
- Louisiana State University Agriculture Center , School of Renewable Natural Resources, 227 Renewable Natural Resources Building, Baton Rouge, LA , 70803
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Pires MEE, Parreira AG, Silva TNL, Colares HC, da Silva JA, de Magalhães JT, Galdino AS, Gonçalves DB, Granjeiro JM, Granjeiro PA. Recent Patents on Impact of Lipopeptide on the Biofilm Formation onto Titanium and Stainless Steel Surfaces. Recent Pat Biotechnol 2019; 14:49-62. [PMID: 31438836 DOI: 10.2174/1872208313666190822150323] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 07/12/2019] [Accepted: 07/23/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND Numerous causes of infection in arthroplasties are related to biofilm formation on implant surfaces. In order to circumvent this problem, new alternatives to prevent bacterial adhesion biosurfactants-based are emerging due to low toxicity, biodegradability and antimicrobial activity of several biosurfactants. We revised all patents relating to biosurfactants of applicability in orthopedic implants. METHODS This work aims to evaluate the capability of a lipopeptide produced by Bacillus subtilis ATCC 19659 isolates acting as inhibitors of the adhesion of Escherichia coli ATCC 25922 and Staphylococcus aureus ATCC 29213 onto titanium and stainless steel surfaces and its antimicrobial activity. RESULTS The adhesion of the strains to the stainless-steel surface was higher than that of titanium. Preconditioning of titanium and stainless-steel surfaces with 10 mg mL-1 lipopeptide reduced the adhesion of E. coli by up to 93% and the adhesion of S. aureus by up to 99.9%, suggesting the strong potential of lipopeptides in the control of orthopedic infections. The minimal inhibitory concentration and minimum bactericidal concentration were 10 and 240 µg mL-1 for E. coli and S. aureus, respectively. CONCLUSION The lipopeptide produced by Bacillus subtilis ATCC 19659 presented high biotechnological application in human health against orthopedic implants infections.
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Affiliation(s)
- Mauro Ezio Eustáquio Pires
- Biotechnology Process and Macromolecules Purification Laboratory, Campus Centro Oeste, Federal University of Sao Joao Del-Rei, Divinopolis, MG, Zip Code: 35501296, Brazil
| | - Adriano Guimarães Parreira
- Biotechnology Process and Macromolecules Purification Laboratory, Campus Centro Oeste, Federal University of Sao Joao Del-Rei, Divinopolis, MG, Zip Code: 35501296, Brazil
| | - Tuânia Natacha Lopes Silva
- Biotechnology Process and Macromolecules Purification Laboratory, Campus Centro Oeste, Federal University of Sao Joao Del-Rei, Divinopolis, MG, Zip Code: 35501296, Brazil
| | - Heloísa Carneiro Colares
- Biotechnology Process and Macromolecules Purification Laboratory, Campus Centro Oeste, Federal University of Sao Joao Del-Rei, Divinopolis, MG, Zip Code: 35501296, Brazil
| | - José Antonio da Silva
- Biotechnology Process and Macromolecules Purification Laboratory, Campus Centro Oeste, Federal University of Sao Joao Del-Rei, Divinopolis, MG, Zip Code: 35501296, Brazil
| | - Juliana Teixeira de Magalhães
- Microbiology Laboratory, Campus Centro Oeste, Federal University of Sao Joao Del-Rei, Divinópolis, MG, 35501296, Brazil
| | - Alexsandro Sobreira Galdino
- Microbial Biotechnology Laboratory, Campus Centro Oeste, Federal University of Sao Joao Del-Rei, Divinopolis, MG, 35501296, Brazil
| | - Daniel Bonoto Gonçalves
- Biotechnology Process and Macromolecules Purification Laboratory, Campus Centro Oeste, Federal University of Sao Joao Del-Rei, Divinopolis, MG, Zip Code: 35501296, Brazil
| | - José Mauro Granjeiro
- Bioengineering Laboratory, National Institute of Metrology, Quality and Technology, Xerem, Duque de Caxias, RJ, 25250-020, Brazil.,Dental Clinical Research, Dentistry School, Fluminense Federal University, Niteroi, Rio de Janeiro, 24020-140, Brazil
| | - Paulo Afonso Granjeiro
- Biotechnology Process and Macromolecules Purification Laboratory, Campus Centro Oeste, Federal University of Sao Joao Del-Rei, Divinopolis, MG, Zip Code: 35501296, Brazil
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Wang X, Chen Z, Feng H, Chen X, Wei L. Genetic variants of the oppA gene are involved in metabolic regulation of surfactin in Bacillus subtilis. Microb Cell Fact 2019; 18:141. [PMID: 31426791 PMCID: PMC6699124 DOI: 10.1186/s12934-019-1176-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Accepted: 07/30/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Bacillus subtilis 916 has been identified as an effective biocontrol agent against Rhizoctonia solani, the causal pathogen of rice sheath blight, under greenhouse and field conditions. HPLC analysis showed that surfactin, a member of the lipopeptide family produced by B. subtilis, was the major antimicrobial substance. RESULTS Previously, we obtained a mutant strain of B. subtilis 916, Bs-H74, which produced significantly more surfactin than the wild type and presented 10% stronger inhibitory activity against R. solani. To explore the molecular mechanism underlying the higher surfactin productivity in the mutant, high-throughput proteomic analysis was carried out to analyze the differential protein expression. Our results showed that several differentially expressed proteins are involved in OppA, DegU and Carbon Catabolite Repression (CCR) regulatory pathways, which could be positively or negatively associated with surfactin biosynthesis. At both transcriptional and translational levels, we suggested that OppA may play a key role in surfactin synthesis regulation. Based on the above findings, we proposed the hypothesis that a point mutation in the oppA gene may lead to changes in oligopeptides acquisition in B. subtilis, and then the changed oligopeptides may activate or suppress the global regulatory protein, CcpA in the CCR pathway, and ComA and DegU may indirectly regulate surfactin synthesis in Bs-H74. To further explore the regulatory mechanisms in Bs-H74, metabolomics analysis was performed in this study. Interestingly, only 16 metabolites showed changes in abundance in Bs-H74 compared to Bs-916. Neohesperidin, a type of natural flavanone glycosides from citrus with a range of biological activities, increased by 18 times over the wild type Bs-916. This result implied exciting findings in regulatory mechanisms by OppA protein. CONCLUSIONS In summary, this study has revealed the mechanisms underlying the improved antagonistic property with increased surfactin production in Bs-H74 at the gene, protein and metabolic levels, which may help to comprehend the map of the regulatory networks in B. subtilis. Findings from our work have provided a solid physical and theoretical basis for practically applying metabolic and genetic engineering to achieve improved and high-yielding biocontrol strains.
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Affiliation(s)
- Xiaoyu Wang
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
| | - Zhiyi Chen
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
| | - Hui Feng
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
| | - Xi Chen
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
| | - Lihui Wei
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China.
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Mg-Fe Layered Double Hydroxides Enhance Surfactin Production in Bacterial Cells. CRYSTALS 2019. [DOI: 10.3390/cryst9070355] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
In this study, four additives—montmorillonite, activated carbon, and the layered double hydroxides (LDHs), Mg2Fe–LDH and Mg2Al–LDH—were tested for their ability to promote surfactin production in a Bacillus subtilis ATCC 21332 culture. Among these tested materials, the addition of 4 g/L of the Mg-Fe LDH, which featured an Mg/Fe molar ratio of 2:1, produced the highest surfactin yield of 5280 mg/L. During the time course of B. subtilis cultivation with the added LDH, two phases of cell growth were evident: Growth and decay. In the growth phase, the cells grew slowly and secreted a high amount of surfactin; in the decay phase, the cells degraded rapidly. The production in the presence of the Mg2Fe–LDH had three characteristics: (i) High surfactin production at low biomass, indicating a high specific surfactin yield of 3.19 g/g DCW; (ii) rapid surfactin production within 24 h, inferring remarkably high productivity (4660 mg/L/d); and (iii) a lower carbon source flux to biomass, suggesting an efficient carbon flux to surfactin, giving a high carbon yield of 52.8%. The addition of Mg2Fe–LDH is an effective means of enhancing surfactin production, with many potential applications and future industrial scale-up.
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Waghmode S, Suryavanshi M, Dama L, Kansara S, Ghattargi V, Das P, Banpurkar A, Satpute SK. Genomic Insights of Halophilic Planococcus maritimus SAMP MCC 3013 and Detail Investigation of Its Biosurfactant Production. Front Microbiol 2019; 10:235. [PMID: 30863371 PMCID: PMC6399143 DOI: 10.3389/fmicb.2019.00235] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 01/28/2019] [Indexed: 01/02/2023] Open
Abstract
Moderate halophilic bacteria thrive in saline conditions and produce biosurfactant (BS) which facilitates the oil scavenging activity in the oil polluted surroundings. Production of such unusual bioactive molecules plays a vital role for their survival in an extreme and adverse environment. Current research deals with isolation of Planococcus maritimus strain SAMP MCC 3013 from Indian Arabian coastline sea water for BS production. The bacterium tolerated up to 2.7 M NaCl demonstrating osmotic stress bearable physiological systems. We used integrated approach to explore the genomic insight of the strain SAMP and displayed the presence of gene for BS biosynthesis. The genome analysis revealed this potential to be intrinsic to the strain. Preliminary screening techniques viz., surface tension (SFT), drop collapse (DC) and oil displacement (OD) showed SAMP MCC 3013 as a potent BS producer. BS reduced SFT of phosphate buffer saline (PBS) pH: 7.0 from 72 to 30 mN/m with a critical micelle concentration (CMC) value of 1.3 mg/mL. Subsequent investigation on chemical characterization, using thin layer chromatography (TLC), Fourier transform infrared spectroscopy (FT-IR), nuclear magnetic resonance (1H NMR and 13C NMR) and liquid chromatography mass spectrometry (LC-MS) revealed terpene containing BS having sugar, lipid moieties. The genomic sequence analysis of P. maritimus SAMP showed complete genes in the pathway for the synthesis of terpenoid. Probably terpenoid is the accountable backbone molecule for the BS production, but the later stages of terpenoid conversion to the BS could not be found. Moreover, it is important to highlight that till today; no single report documents the in-detailed physico-chemical characterization of BS from Planococcus sp. Based on genomic and functional properties, the term terpene containing BS is denoted for the surfactant produced by P. maritimus.
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Affiliation(s)
- Samadhan Waghmode
- Department of Microbiology, Elphinstone College, University of Mumbai, Mumbai, India
| | - Mangesh Suryavanshi
- National Centre for Microbial Resource, National Centre for Cell Science, Pune, India
| | - Laxmikant Dama
- Department of Zoology, DBF Dayanand College, University of Solapur, Solapur, India
| | - Shraddha Kansara
- Department of Microbiology, Savitribai Phule Pune University, Pune, India
| | - Vikas Ghattargi
- National Centre for Microbial Resource, National Centre for Cell Science, Pune, India
| | - Parijat Das
- Department of Microbiology, Savitribai Phule Pune University, Pune, India
| | - Arun Banpurkar
- Department of Physics, Savitribai Phule Pune University, Pune, India
| | - Surekha K. Satpute
- Department of Microbiology, Savitribai Phule Pune University, Pune, India
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Nanjundan J, Ramasamy R, Uthandi S, Ponnusamy M. Antimicrobial activity and spectroscopic characterization of surfactin class of lipopeptides from Bacillus amyloliquefaciens SR1. Microb Pathog 2019; 128:374-380. [PMID: 30695712 DOI: 10.1016/j.micpath.2019.01.037] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 01/23/2019] [Accepted: 01/23/2019] [Indexed: 11/18/2022]
Abstract
A bacterial isolate screened from wet land soil sample, found to posses antimicrobial activity against an array of fungal plant pathogens viz., Rhizoctonia solani, Sclerotium rolfsii, Alternaria solani, Fusarium oxysporum under in vitro dual culture plate assay. Further the isolate was identified into Bacillus amyloliquefaciens based on 16S rRNA sequencing. The antimicrobial fraction from the extracellular supernatant of the isolate comprises chiefly of surfactin molecules and also iturin and fengycin group of compounds. The surfactins were partially purified by tangential flow ultra-filtration and quantified with liquid chromatography yielding 316.1 mg L-1. Further the surfactin molecules were characterized by HPLC separation, FT-IR, LC-MS spectroscopy and PCR amplification of antibiotic genes. The surfactin molecule with m/z 1022 performed for MS-MS fragmentation and produced two different patterns of ion dissociation.
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MESH Headings
- Alternaria/pathogenicity
- Anti-Infective Agents/chemistry
- Anti-Infective Agents/isolation & purification
- Anti-Infective Agents/pharmacology
- Antifungal Agents/chemistry
- Antifungal Agents/isolation & purification
- Antifungal Agents/pharmacology
- Ascomycota/pathogenicity
- Bacillus amyloliquefaciens/classification
- Bacillus amyloliquefaciens/genetics
- Bacillus amyloliquefaciens/isolation & purification
- Bacillus amyloliquefaciens/metabolism
- Chromatography, High Pressure Liquid
- Chromatography, Liquid
- DNA, Bacterial
- Fusarium/pathogenicity
- Genes, Bacterial/genetics
- Lipopeptides/chemistry
- Lipopeptides/genetics
- Lipopeptides/isolation & purification
- Lipopeptides/pharmacology
- Peptides, Cyclic/chemistry
- Peptides, Cyclic/genetics
- Peptides, Cyclic/isolation & purification
- Peptides, Cyclic/pharmacology
- Plant Diseases/microbiology
- RNA, Ribosomal, 16S/genetics
- Rhizoctonia/pathogenicity
- Soil Microbiology
- Spectroscopy, Fourier Transform Infrared
- Tandem Mass Spectrometry
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Affiliation(s)
- Jaivel Nanjundan
- Department of Agricultural Microbiology, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India.
| | - Rajesh Ramasamy
- Department of Agricultural Microbiology, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India
| | - Sivakumar Uthandi
- Department of Agricultural Microbiology, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India
| | - Marimuthu Ponnusamy
- Department of Agricultural Microbiology, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India
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Hentati D, Chebbi A, Hadrich F, Frikha I, Rabanal F, Sayadi S, Manresa A, Chamkha M. Production, characterization and biotechnological potential of lipopeptide biosurfactants from a novel marine Bacillus stratosphericus strain FLU5. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 167:441-449. [PMID: 30384057 DOI: 10.1016/j.ecoenv.2018.10.036] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 09/25/2018] [Accepted: 10/10/2018] [Indexed: 05/21/2023]
Abstract
This work aimed at studying the potential of a new hydrocarbonoclastic marine bacterium, Bacillus stratosphericus FLU5, to produce an efficient surface-active agent BS-FLU5. Biosurfactant production was examined on different carbon sources; using the surface tension measurement and the oil displacement test. Strain FLU5 showed its capacity to produce biosurfactants from all tested substrates, in particular the residual frying oil, which is a cheap renewable carbon source alternative, thus minimizing the high cost of producing those surfactants. MALDI-TOF MS/MS analysis confirmed the presence of lipopeptides, which are identified as members of surfactin and pumilacidin series. The critical micelle concentration (CMC) of the purified lipopeptides produced by strain FLU5 was 50 mg/l. At this concentration, the surface tension of the water was reduced from 72 to 28 mN/m. Furthermore, the crude lipopeptides showed an interesting stability against a broad range of pH, temperature and salinity. In addition, the application of BS-FLU5 in oil recovery from hydrocarbons-contaminated soil (used motor oil) showed that it was more effective on the hydrocarbon-remobilization than some tested synthetic surfactants. Interestingly, the biosurfactant BS-FLU5 showed a negligible cytotoxic effect against the mammalian cells HEK293. These results highlight the applicability of the lipopeptides BS-FLU5 in different fields, especially in environmental remediation processes.
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Affiliation(s)
- Dorra Hentati
- Laboratory of Environmental Bioprocesses, Centre of Biotechnology of Sfax, University of Sfax, PO Box 1177, 3018 Sfax, Tunisia
| | - Alif Chebbi
- Laboratory of Environmental Bioprocesses, Centre of Biotechnology of Sfax, University of Sfax, PO Box 1177, 3018 Sfax, Tunisia
| | - Fatma Hadrich
- Laboratory of Environmental Bioprocesses, Centre of Biotechnology of Sfax, University of Sfax, PO Box 1177, 3018 Sfax, Tunisia
| | - Ilhem Frikha
- Laboratory of Environmental Bioprocesses, Centre of Biotechnology of Sfax, University of Sfax, PO Box 1177, 3018 Sfax, Tunisia
| | - Francesc Rabanal
- Section of Organic Chemistry, Department of Inorganic and Organic Chemistry, Faculty of Chemistry, University of Barcelona, Martí i Franquès, 1, 08028 Barcelona, Spain
| | - Sami Sayadi
- Laboratory of Environmental Bioprocesses, Centre of Biotechnology of Sfax, University of Sfax, PO Box 1177, 3018 Sfax, Tunisia
| | - Angeles Manresa
- Section of Microbiology, Department of Biology, Health and Environment, Faculty of Pharmacy, University of Barcelona, Joan XXIII s/n, 08028 Barcelona, Spain
| | - Mohamed Chamkha
- Laboratory of Environmental Bioprocesses, Centre of Biotechnology of Sfax, University of Sfax, PO Box 1177, 3018 Sfax, Tunisia.
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Santos VSV, Silveira E, Pereira BB. Toxicity and applications of surfactin for health and environmental biotechnology. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2019; 21:382-399. [PMID: 30614421 DOI: 10.1080/10937404.2018.1564712] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Characterized as one of the most potent biosurfactants, surfactin is a cyclic lipopeptide synthesized by several strains of Bacillus genus. The aim of this review was to present the physicochemical and structural properties of surfactin and to demonstrate advances and applications of this biosurfactant for health and environmental biotechnology. Further, this review also focused on toxicological effects of surfactin on in vivo and in in vitro systems. The hydrophobic nature of surfactin enables interaction with membrane-bound phospholipids and indicates the ability of the molecule to act as a new weapon with respect to therapeutic and environmental properties. Seeking to avoid environmental contamination produced by widespread use of synthetic surfactants, surfactin emerges as a biological control agent against pathogen species owing to its antibacterial and antiviral properties. In addition, the mosquitocidal activity of surfactin was suggested as new strategy to control disease vectors. The current findings warrant future research to assess the toxicity of surfactin to enable an optimizing anticancer therapy and to seek refined methodologies, including nanotechnology techniques, to allow for an improved delivery of the biogenic molecule on target cells.
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Affiliation(s)
- Vanessa Santana Vieira Santos
- a Department of Environmental Health, Laboratory of Environmental Health , Federal University of Uberlândia, Santa Mônica Campus , Uberlândia , Brazil
- b Institute of Biotechnology, Department of Biotechnology , Federal University of Uberlândia, Umuarama Campus , Uberlândia , Brazil
| | - Edgar Silveira
- b Institute of Biotechnology, Department of Biotechnology , Federal University of Uberlândia, Umuarama Campus , Uberlândia , Brazil
| | - Boscolli Barbosa Pereira
- a Department of Environmental Health, Laboratory of Environmental Health , Federal University of Uberlândia, Santa Mônica Campus , Uberlândia , Brazil
- b Institute of Biotechnology, Department of Biotechnology , Federal University of Uberlândia, Umuarama Campus , Uberlândia , Brazil
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46
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Wang J, Guo R, Wang W, Ma G, Li S. Insight into the surfactin production of Bacillus velezensis B006 through metabolomics analysis. ACTA ACUST UNITED AC 2018; 45:1033-1044. [PMID: 30203399 DOI: 10.1007/s10295-018-2076-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Accepted: 08/30/2018] [Indexed: 11/25/2022]
Abstract
Abstract
Bacillus velezensis B006 is a biocontrol agent which functions through effective colonization and surfactin production. To reveal the surfactin-producing mechanism, gas chromatography–mass spectrometry based untargeted metabolomics was performed to compare the metabolite profiles of strain B006 grown in industrial media M3 and M4. Based on the statistical and pathway topology analyses, a total of 31 metabolites with a fold change of less than − 1.0 were screened as the significantly altered metabolites, which distributed in 15 metabolic pathways. Fourteen amino acids involving in the metabolisms of alanine/aspartate/glutamate, glycine/serine/threonine, arginine/proline, glutathione/cysteine/methionine and valine/leucine/isoleucine as well as succinic acid in TCA cycle were identified to be the hub metabolites. Aminoacyl-tRNA biosynthesis, glycerolipid metabolism, and pantothenate/CoA biosynthesis also contributed to surfactin production. To the best of our knowledge, this study is the first to investigate the metabolic pathways of B. velezensis on surfactin production, and will benefit the optimization of commercial fermentation for higher surfactin yield.
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Affiliation(s)
- Junqiang Wang
- grid.464356.6 Institute of Plant Protection, Chinese Academy of Agricultural Sciences No. 2 Yuanmingyuan West Road 100193 Beijing China
- Jiangsu Frey Agrochemicals Co. Ltd 222005 Lianyungang Jiangsu China
| | - Rongjun Guo
- grid.464356.6 Institute of Plant Protection, Chinese Academy of Agricultural Sciences No. 2 Yuanmingyuan West Road 100193 Beijing China
| | - Wenchao Wang
- Shanghai ProfLeader Biotech Co. Ltd 200231 Shanghai China
| | - Guizhen Ma
- 0000 0004 1800 0658 grid.443480.f School of Chemical Engineering Huaihai Institute of Technology 222005 Lianyungang Jiangsu China
| | - Shidong Li
- grid.464356.6 Institute of Plant Protection, Chinese Academy of Agricultural Sciences No. 2 Yuanmingyuan West Road 100193 Beijing China
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47
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Chaprão MJ, da Silva RDCFS, Rufino RD, Luna JM, Santos VA, Sarubbo LA. Production of a biosurfactant from Bacillus methylotrophicus UCP1616 for use in the bioremediation of oil-contaminated environments. ECOTOXICOLOGY (LONDON, ENGLAND) 2018; 27:1310-1322. [PMID: 30392032 DOI: 10.1007/s10646-018-1982-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 09/01/2018] [Indexed: 06/08/2023]
Abstract
The aim of the present study was to produce a microbial biosurfactant for use in the bioremediation of environments contaminated with petroleum products. Bacillus methylotrophicus was isolated from seawater taken from a port area and cultivated using industrial waste as substrate (corn steep liquor and sugarcane molasses [both at 3%]). Surface tension measurements and motor oil emulsification capacity were used for the evaluation of the production of the biosurfactant, which demonstrated stability in a broad range of pH and temperature as well as a high concentration of saline, with the reduction of the surface tension of water to 29 mN/m. The maximum concentration of biosurfactant (10.0 g/l) was reached after 144 h of cultivation. The biosurfactant was considered to be a lipopeptide based on the results of proton nuclear magnetic resonance and Fourier transformed infrared spectroscopy. The tests demonstrated that the biosurfactant is innocuous and has potential for the bioremediation of soil and water contaminated by petroleum products. Thus, the biosurfactant described herein has a low production cost and can be used in environmental processes.
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Affiliation(s)
- Marco José Chaprão
- Northeast Biotechnology Network (RENORBIO), Federal Rural University of Pernambuco, Rua Dom, Manoel de Medeiros, s/n, Dois Irmãos, Recife, Pernambuco, 52171-900, Brazil
- Advanced Institute of Technology and Innovation - IATI, Rua Joaquim de Brito, n 216, Boa Vista, Recife, Pernambuco, 50070-280, Brazil
| | - Rita de Cássia F Soares da Silva
- Advanced Institute of Technology and Innovation - IATI, Rua Joaquim de Brito, n 216, Boa Vista, Recife, Pernambuco, 50070-280, Brazil
- Catholic University of Pernambuco, Rua do Príncipe, n. 526, Boa Vista, Recife, Pernambuco, 50050-900, Brazil
| | - Raquel D Rufino
- Advanced Institute of Technology and Innovation - IATI, Rua Joaquim de Brito, n 216, Boa Vista, Recife, Pernambuco, 50070-280, Brazil
- Catholic University of Pernambuco, Rua do Príncipe, n. 526, Boa Vista, Recife, Pernambuco, 50050-900, Brazil
| | - Juliana M Luna
- Advanced Institute of Technology and Innovation - IATI, Rua Joaquim de Brito, n 216, Boa Vista, Recife, Pernambuco, 50070-280, Brazil
- Catholic University of Pernambuco, Rua do Príncipe, n. 526, Boa Vista, Recife, Pernambuco, 50050-900, Brazil
| | - Valdemir A Santos
- Advanced Institute of Technology and Innovation - IATI, Rua Joaquim de Brito, n 216, Boa Vista, Recife, Pernambuco, 50070-280, Brazil
- Catholic University of Pernambuco, Rua do Príncipe, n. 526, Boa Vista, Recife, Pernambuco, 50050-900, Brazil
| | - Leonie A Sarubbo
- Advanced Institute of Technology and Innovation - IATI, Rua Joaquim de Brito, n 216, Boa Vista, Recife, Pernambuco, 50070-280, Brazil.
- Catholic University of Pernambuco, Rua do Príncipe, n. 526, Boa Vista, Recife, Pernambuco, 50050-900, Brazil.
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48
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Durval IJB, Resende AHM, Figueiredo MA, Luna JM, Rufino RD, Sarubbo LA. Studies on Biosurfactants Produced usingBacillus cereusIsolated from Seawater with Biotechnological Potential for Marine Oil-Spill Bioremediation. J SURFACTANTS DETERG 2018. [DOI: 10.1002/jsde.12218] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Italo José B. Durval
- Federal University of Pernambuco; Av. Prof. Moraes Rego, 1235, Cidade Universitária, Zip Code, 50670-901, Recife Pernambuco Brazil
| | - Ana Helena M. Resende
- Catholic University of Pernambuco; Rua do Príncipe, n. 526, Boa Vista, Zip Code, 50050-900, Recife Pernambuco Brazil
- Advanced Institute of Technology and Innovation (IATI); Rua Joaquim de Brito, 216, Boa Vista, Zip Code, 50070-280, Recife Pernambuco Brazil
| | - Mariana A. Figueiredo
- Department of Microbiology; Aggeu Magalhães Research Center, Oswaldo Cruz Foundation; CPqAM/Fiocruz, Av. Professor Moraes Rego, s/n, Cidade Universitária, Zip Code, 50670-420, Recife Pernambuco Brazil
| | - Juliana M. Luna
- Catholic University of Pernambuco; Rua do Príncipe, n. 526, Boa Vista, Zip Code, 50050-900, Recife Pernambuco Brazil
- Advanced Institute of Technology and Innovation (IATI); Rua Joaquim de Brito, 216, Boa Vista, Zip Code, 50070-280, Recife Pernambuco Brazil
| | - Raquel D. Rufino
- Catholic University of Pernambuco; Rua do Príncipe, n. 526, Boa Vista, Zip Code, 50050-900, Recife Pernambuco Brazil
- Advanced Institute of Technology and Innovation (IATI); Rua Joaquim de Brito, 216, Boa Vista, Zip Code, 50070-280, Recife Pernambuco Brazil
| | - Leonie A. Sarubbo
- Catholic University of Pernambuco; Rua do Príncipe, n. 526, Boa Vista, Zip Code, 50050-900, Recife Pernambuco Brazil
- Advanced Institute of Technology and Innovation (IATI); Rua Joaquim de Brito, 216, Boa Vista, Zip Code, 50070-280, Recife Pernambuco Brazil
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49
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Ong SA, Wu JC. A simple method for rapid screening of biosurfactant-producing strains using bromothymol blue alone. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2018. [DOI: 10.1016/j.bcab.2018.07.027] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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50
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On the road towards tailor-made rhamnolipids: current state and perspectives. Appl Microbiol Biotechnol 2018; 102:8175-8185. [DOI: 10.1007/s00253-018-9240-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2018] [Revised: 07/11/2018] [Accepted: 07/11/2018] [Indexed: 12/20/2022]
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