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Kathiravan N, Rajesh A, Kim JW, Davoodbasha M. Isolation and Characterization of Biosurfactant-Producing Soil Fungus Penicillium sp. Appl Biochem Biotechnol 2024; 196:3234-3245. [PMID: 37642923 DOI: 10.1007/s12010-023-04704-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/16/2023] [Indexed: 08/31/2023]
Abstract
In this study, a fungal species was isolated from rhizospheric soil and identified as Penicillium sp. by ITS sequencing. The Penicillium sp. has been screened for the biosurfactant production, viz., haemolytic activity, oil spreading assay and emulsification index. The biosurfactant from cell-free supernatant was extracted using acid precipitation followed by solvent-solvent extraction. The physiochemical properties of the extracted biosurfactant were analysed using FTIR; the major peaks that show at 1720 cm-1, 1531 cm-1, 1419 cm-1, 1251 cm-1 and 1010 cm-1 correspond to aliphatic chains, sugars and ester carbonyl groups. The fatty acids present in the extracted biosurfactant were analysed using GCMS, in which a molecular mass of 256 and 284 m/z showed the presence of n-hexadecenoic acid and octadecanoic acid respectively which indicate the presence of rhamnolipid, which is a major biosurfactant. The biosurfactant extracted from Penicllium sp. demonstrated antibacterial activity against Escherichia coli and Staphylococcus aureus. In future perspectives, the biosurfactant extracted from the isolated species holds great potential as a broad-spectrum antibacterial agent and could be utilized in various healthcare applications.
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Affiliation(s)
- Naveenkumar Kathiravan
- School of Life Sciences, B.S. Abdur Rahman Crescent Institute of Science and Technology, Chennai, 620048, India
- Aatreal Green Renewable Energy Pvt. Ltd., IITM Research Park, Chennai, 600113, India
| | - Arjun Rajesh
- Department of Biotechnology, College of Science, Northeastern University, Boston, MA, 02115, USA
| | - Jung-Wan Kim
- Department of Biotechnology, College of Science, Northeastern University, Boston, MA, 02115, USA.
| | - MubarakAli Davoodbasha
- School of Life Sciences, B.S. Abdur Rahman Crescent Institute of Science and Technology, Chennai, 620048, India.
- Division of Bioengineering, Incheon National University, Incheon, 22012, Republic of Korea.
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Walaszczyk A, Jasińska A, Bernat P, Różalska S, Sas-Paszt L, Lisek A, Paraszkiewicz K. The Combined Effects of Azoxystrobin and the Biosurfactant-Producing Bacillus sp. Kol B3 against the Phytopathogenic Fungus Fusarium sambucinum IM 6525. Int J Mol Sci 2024; 25:4175. [PMID: 38673760 PMCID: PMC11049953 DOI: 10.3390/ijms25084175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/04/2024] [Accepted: 04/08/2024] [Indexed: 04/28/2024] Open
Abstract
This study aimed to evaluate how the combined presence of the synthetic fungicide azoxystrobin (AZ) and the biosurfactant-producing Bacillus sp. Kol B3 influences the growth of the phytopathogenic fungus Fusarium sambucinum IM 6525. The results showed a noticeable increase in antifungal effectiveness when biotic and abiotic agents were combined. This effect manifested across diverse parameters, including fungal growth inhibition, changes in hyphae morphology, fungal membrane permeability and levels of intracellular reactive oxygen species (ROS). In response to the presence of Fusarium and AZ in the culture, the bacteria changed the proportions of biosurfactants (surfactin and iturin) produced. The presence of both AZ and/or Fusarium resulted in an increase in iturin biosynthesis. Only in 72 h old bacterial-fungal co-culture a 20% removal of AZ was noted. In the fungal cultures (with and without the addition of the bacteria), the presence of an AZ metabolite named azoxystrobin free acid was detected in the 48th and 72nd hours of the process. The possible involvement of increased iturin and ROS content in antifungal activity of Bacillus sp. and AZ when used together are also discussed. Biosurfactants were analyzed by liquid chromatography with tandem mass spectrometry (LC-MS/MS). Microscopy techniques and biochemical assays were also used.
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Affiliation(s)
- Aleksandra Walaszczyk
- Department of Industrial Microbiology and Biotechnology, Faculty of Biology and Environmental Protection, Doctoral School of Exact and Natural Sciences, University of Lodz, 90-136 Lodz, Poland;
| | - Anna Jasińska
- Department of Industrial Microbiology and Biotechnology, Faculty of Biology and Environmental Protection, University of Lodz, 90-136 Lodz, Poland; (A.J.); (P.B.); (S.R.)
| | - Przemysław Bernat
- Department of Industrial Microbiology and Biotechnology, Faculty of Biology and Environmental Protection, University of Lodz, 90-136 Lodz, Poland; (A.J.); (P.B.); (S.R.)
| | - Sylwia Różalska
- Department of Industrial Microbiology and Biotechnology, Faculty of Biology and Environmental Protection, University of Lodz, 90-136 Lodz, Poland; (A.J.); (P.B.); (S.R.)
| | - Lidia Sas-Paszt
- Department of Microbiology and Rhizosphere, The National Institute of Horticultural Research, 96-100 Skierniewice, Poland; (L.S.-P.); (A.L.)
| | - Anna Lisek
- Department of Microbiology and Rhizosphere, The National Institute of Horticultural Research, 96-100 Skierniewice, Poland; (L.S.-P.); (A.L.)
| | - Katarzyna Paraszkiewicz
- Department of Industrial Microbiology and Biotechnology, Faculty of Biology and Environmental Protection, University of Lodz, 90-136 Lodz, Poland; (A.J.); (P.B.); (S.R.)
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3
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Scotti R, Casciaro B, Stringaro A, Maggi F, Colone M, Gabbianelli R. Fighting Microbial Infections from Escherichia coli O157:H7: The Combined Use of Three Essential Oils of the Cymbopogon Genus and a Derivative of Esculentin-1a Peptide. Antibiotics (Basel) 2024; 13:86. [PMID: 38247645 PMCID: PMC10812396 DOI: 10.3390/antibiotics13010086] [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: 12/20/2023] [Revised: 01/08/2024] [Accepted: 01/10/2024] [Indexed: 01/23/2024] Open
Abstract
The absence of effective therapy against Escherichia coli O157:H7 infections has led to the need to develop new antimicrobial agents. As the use of synergistic combinations of natural antimicrobial compounds is growing as a new weapon in the fight against multidrug-resistant bacteria, here, we have tested new synergistic combinations of natural agents. Notably, we investigated a possible synergistic effect of combinations of essential oils and natural peptides to counteract the formation of biofilm. We chose three essential oils (i.e., Cymbopogon citratus, C. flexuosus and C. martinii) and one peptide already studied in our previous works. We determined the fractional inhibitory concentration (FIC) by analyzing the combination of the peptide derived from esculentin-1a, Esc(1-21), with the three essential oils. We also studied the effects of combinations by time-kill curves, scanning electron microscopy on biofilm and Sytox Green on cell membrane permeability. Finally, we analyzed the expression of different genes implicated in motility, biofilm formation and stress responses. The results showed a different pattern of gene expression in bacteria treated with the mixtures compared to those treated with the peptide or the single C. citratus essential oil. In conclusion, we demonstrated that the three essential oils used in combination with the peptide showed synergy against the E. coli O157:H7, proving attractive as an alternative strategy against E. coli pathogen infections.
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Affiliation(s)
- Raffaella Scotti
- Biological Service, Italian National Institute of Health, 00161 Rome, Italy;
| | - Bruno Casciaro
- Laboratory Affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Department of Biochemical Sciences, Sapienza University of Rome, 00185 Rome, Italy;
| | - Annarita Stringaro
- National Center for Drug Research and Evaluation, Italian National Institute of Health, 00161 Rome, Italy; (A.S.); (M.C.)
| | - Filippo Maggi
- Chemistry Interdisciplinary Project (ChIP) Research Center, School of Pharmacy, University of Camerino, 62032 Camerino, Italy;
| | - Marisa Colone
- National Center for Drug Research and Evaluation, Italian National Institute of Health, 00161 Rome, Italy; (A.S.); (M.C.)
| | - Roberta Gabbianelli
- Biological Service, Italian National Institute of Health, 00161 Rome, Italy;
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4
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Ghosh S, Sett U, Pal A, Nandy S, Nandi S, Chakrabarty S, Das A, Bandopadhyay P, Basu T. Antibiofilm potential of nanonized eugenol against Pseudomonas aeruginosa. J Appl Microbiol 2024; 135:lxad305. [PMID: 38093454 DOI: 10.1093/jambio/lxad305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 12/03/2023] [Accepted: 12/12/2023] [Indexed: 01/03/2024]
Abstract
AIMS The purpose of this study was to synthesize a nanoform of eugenol (an important phytochemical with various pharmacological potentials) and to investigate its antibiofilm efficacy on Pseudomonas aeruginosa biofilm. METHODS AND RESULTS Colloidal suspension of eugenol-nanoparticles (ENPs) was synthesized by the simple ultrasonic cavitation method through the emulsification of hydrophobic eugenol into hydrophilic gelatin. Thus, the nanonization process made water-insoluble eugenol into water-soluble nano-eugenol, making the nanoform bioavailable. The size of the ENPs was 20-30 nm, entrapment efficiency of eugenol within gelatin was 80%, and release of eugenol from the gelatin cap was slow and sustained over 5 days. Concerning the clinically relevant pathogen P. aeruginosa, ENPs had higher antibiofilm (for both formation and eradication) activities than free eugenol. Minimal biofilm inhibitory concentration and minimal biofilm eradication concentration of ENP on P. aeruginosa biofilm were 2.0 and 4.0 mM, respectively. In addition, the measurement of P. aeruginosa biofilm biomass, biofilm thickness, amount of biofilm extra-polymeric substance, cell surface hydrophobicity, cell swarming and twitching efficiencies, cellular morphology, and biofilm formation in catheter demonstrated that the antibiofilm efficacy of nano-eugenol was 30%-40% higher than that of bulk eugenol. CONCLUSION These results signify that future pharmacological and clinical studies are very much required to investigate whether ENPs can act as an effective drug against P. aeruginosa biofilm-mediated diseases. Thus, the problem of intrinsic antibiotic tolerance of biofilm-forming cells may be minimized by ENPs. Moreover, ENP may be used as a potential catheter-coating agent to inhibit pseudomonal colonization on catheter surfaces and, therefore, to reduce catheter-associated infections and complications.
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Affiliation(s)
- Sourav Ghosh
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani 741 235, India
| | - Upasana Sett
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani 741 235, India
| | - Anabadya Pal
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani 741 235, India
| | - Sanchita Nandy
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani 741 235, India
| | - Susmita Nandi
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani 741 235, India
| | - Soumajit Chakrabarty
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani 741 235, India
| | - Abhijit Das
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani 741 235, India
| | - Pathikrit Bandopadhyay
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani 741 235, India
| | - Tarakdas Basu
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani 741 235, India
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5
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Lopes S, Fahr E, Costa J, Silva AB, Lopes MM, Faustino C, Ribeiro MHL. Sustainable trehalose lipid production by Rhodotorula sp.: a promising bio-based alternative. Bioprocess Biosyst Eng 2024; 47:145-157. [PMID: 38103079 DOI: 10.1007/s00449-023-02949-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 11/13/2023] [Indexed: 12/17/2023]
Abstract
Global environmental concerns drive research toward the development of new eco-friendly compounds to replace pollutant chemicals. This study focuses on optimizing the production of trehalose lipids (TLs), which are glycolipid biosurfactants (BS) with various applications like antimicrobial or surface tension reduction. New microorganism sources, growth conditions, medium composition, purification conditions, and physicochemical properties of TLs are studied. Addressing a microscale approach, TLs production was successfully achieved using Rhodotorula sp. and Rhodococcus erythropolis to compare, with different media compositions including glucose-based and salt media supplemented with glycerol, glucose, n-hexadecane, n-dodecane. Liquid-liquid extraction using ethyl acetate and methanol was employed for compound extraction, followed by characterization using analytical methods such as Thin layer chromatography (TLC), High performance liquid chromatography (HPLC), and UHPLC. The produced TLs exhibited a minimum surface tension of 47 mN/m and a critical micellar concentration of 4.4 mg/mL. This study also identified Rhodotorula sp. as a new sustainable producer of TLs with improved productivity.
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Affiliation(s)
- Sara Lopes
- Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
| | - Eva Fahr
- Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
| | - João Costa
- Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
| | - Andreia B Silva
- Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
- Department of Pharmaceutical Sciences and Medicines, Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
| | - M Manuel Lopes
- Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
| | - Célia Faustino
- Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
- Department of Pharmaceutical Sciences and Medicines, Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
| | - Maria H L Ribeiro
- Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal.
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal.
- Department of Pharmaceutical Sciences and Medicines, Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal.
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6
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Liu F, Greenwood AI, Xiong Y, Miceli RT, Fu R, Anderson KW, McCallum SA, Mihailescu M, Gross R, Cotten ML. Host Defense Peptide Piscidin and Yeast-Derived Glycolipid Exhibit Synergistic Antimicrobial Action through Concerted Interactions with Membranes. JACS AU 2023; 3:3345-3365. [PMID: 38155643 PMCID: PMC10751773 DOI: 10.1021/jacsau.3c00506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 09/25/2023] [Accepted: 09/29/2023] [Indexed: 12/30/2023]
Abstract
Developing new antimicrobials as alternatives to conventional antibiotics has become an urgent race to eradicate drug-resistant bacteria and to save human lives. Conventionally, antimicrobial molecules are studied independently even though they can be cosecreted in vivo. In this research, we investigate two classes of naturally derived antimicrobials: sophorolipid (SL) esters as modified yeast-derived glycolipid biosurfactants that feature high biocompatibility and low production cost; piscidins, which are host defense peptides (HDPs) from fish. While HDPs such as piscidins target the membrane of pathogens, and thus result in low incidence of resistance, SLs are not well understood on a mechanistic level. Here, we demonstrate that combining SL-hexyl ester (SL-HE) with subinhibitory concentration of piscidins 1 (P1) and 3 (P3) stimulates strong antimicrobial synergy, potentiating a promising therapeutic window. Permeabilization assays and biophysical studies employing circular dichroism, NMR, mass spectrometry, and X-ray diffraction are performed to investigate the mechanism underlying this powerful synergy. We reveal four key mechanistic features underlying the synergistic action: (1) P1/3 binds to SL-HE aggregates, becoming α-helical; (2) piscidin-glycolipid assemblies synergistically accumulate on membranes; (3) SL-HE used alone or bound to P1/3 associates with phospholipid bilayers where it induces defects; (4) piscidin-glycolipid complexes disrupt the bilayer structure more dramatically and differently than either compound alone, with phase separation occurring when both agents are present. Overall, dramatic enhancement in antimicrobial activity is associated with the use of two membrane-active agents, with the glycolipid playing the roles of prefolding the peptide, coordinating the delivery of both agents to bacterial surfaces, recruiting the peptide to the pathogenic membranes, and supporting membrane disruption by the peptide. Given that SLs are ubiquitously and safely used in consumer products, the SL/peptide formulation engineered and mechanistically characterized in this study could represent fertile ground to develop novel synergistic agents against drug-resistant bacteria.
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Affiliation(s)
- Fei Liu
- Department
of Chemistry, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Alexander I. Greenwood
- Department
of Applied Science, William & Mary, Williamsburg, Virginia 23185, United States
| | - Yawei Xiong
- Department
of Applied Science, William & Mary, Williamsburg, Virginia 23185, United States
| | - Rebecca T. Miceli
- Department
of Chemistry, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
- Center
for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Riqiang Fu
- Center
of Interdisciplinary Magnetic Resonance, National High Magnetic Field Laboratory, Tallahassee, Florida 32310, United States
| | - Kyle W. Anderson
- National
Institute of Standards and Technology, Rockville, Maryland 20850, United States
| | - Scott A. McCallum
- Center
for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Mihaela Mihailescu
- Institute
for Bioscience and Biotechnology Research, University of Maryland, Rockville, Maryland 20850, United States
| | - Richard Gross
- Department
of Chemistry, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
- Center
for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Myriam L. Cotten
- Department
of Applied Science, William & Mary, Williamsburg, Virginia 23185, United States
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Rahaman SN, Pathmanapan S, Sidharthan A, Anandasadagopan SK. Vancomycin Loaded Amino-Functionalized MCM-48 Mesoporous Silica Nanoparticles as a Promising Drug Carrier in Bone Substitutes for Bacterial Infection Management. Appl Biochem Biotechnol 2023; 195:6607-6632. [PMID: 36892681 DOI: 10.1007/s12010-023-04406-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/17/2023] [Indexed: 03/10/2023]
Abstract
Orthopedic infections due to biofilm formation in biomaterial-based implants have become challenging in bone tissue engineering. In the present study, in vitro antibacterial analysis of amino-functionalized MCM-48 mesoporous silica nanoparticles (AF-MSNs) loaded with vancomycin is analyzed for its potential as a drug carrier for the sustained/controlled release of vancomycin against Staphylococcus aureus. The effective incorporation of vancomycin into the inner core of AF-MSNs was observed by alternation in the absorption frequencies obtained by Fourier transform infrared spectroscopy (FTIR). Dynamic light scattering (DLS) and high resolution-transmission electron microscopy (HR-TEM) results show that all the AF-MSNs had homogeneous spherical shapes with a mean diameter of 165.2 ± 1.25 nm, and there is a slight change in the hydrodynamic diameter after vancomycin loading. Furthermore, the zeta potential of all the AF-MSNs (+ 30.5 ± 0.54 mV) and AF-MSN/VA (+ 33.3 ± 0.56 mV) were positively charged due to effective functionalization with 3-aminopropyl triethoxysilane (APTES). Furthermore, cytotoxicity results show that the AF-MSNs have better biocompatibility than non-functionalized MSNs (p < 0.05), and results prove AF-MSNs loaded with vancomycin show better antibacterial effect against S. aureus than non-functionalized MSNs. Results confirm that bacterial membrane integrity was affected by treatment with AF-MSNs and AF-MSN/VA by staining the treated cells with FDA/PI. Field emission scanning electron microscopy (FESEM) analysis confirmed the shrinkage of bacterial cells and membrane disintegration. Furthermore, these results demonstrate that amino-functionalized MSNs loaded with vancomycin significantly increased the anti-biofilm and biofilm inhibitory effect and can be incorporated with biomaterial-based bone substitutes and bone cement to prevent orthopedic infections post-implantation.
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Affiliation(s)
- Syed Nasar Rahaman
- Biochemistry and Biotechnology Laboratory, Central Leather Research Institute, Council of Scientific and Industrial Research (CSIR), Adyar, Chennai, 600020, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201 002, India
| | - Srinivetha Pathmanapan
- Biochemistry and Biotechnology Laboratory, Central Leather Research Institute, Council of Scientific and Industrial Research (CSIR), Adyar, Chennai, 600020, India
- Department of Leather Technology, Housed at CSIR-Central Leather Research Institute, Alagappa College of Technology, Anna University, Chennai, 600020, India
| | - Anbarasi Sidharthan
- Department of Biotechnology, Bharathidasan University, Tiruchirapalli, 620 024, India
| | - Suresh Kumar Anandasadagopan
- Biochemistry and Biotechnology Laboratory, Central Leather Research Institute, Council of Scientific and Industrial Research (CSIR), Adyar, Chennai, 600020, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201 002, India.
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8
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Niu Y, Sun Y, Yang Y, Niu B, Wang Y, Qiao S. Antibacterial Mechanism of Rhamnolipids against Bacillus cereus and Its Application in Fresh Wet Noodles. Molecules 2023; 28:6946. [PMID: 37836789 PMCID: PMC10574271 DOI: 10.3390/molecules28196946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 10/02/2023] [Accepted: 10/04/2023] [Indexed: 10/15/2023] Open
Abstract
Bacillus cereus (B. cereus) is a common foodborne pathogen causing food poisoning incidents. This study aimed to evaluate the antibacterial activity and underlying mechanism of rhamnolipids (RLs) against B. cereus. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of RLs for B. cereus were determined to be 16.0 mg/L and 32.0 mg/L, respectively. Scanning electron microscopy and fluorescence microscope images, as well as data of membrane potential, relative electric conductivity, and leakage of intracellular components revealed that RLs disrupted the integrity of the cell membrane. Furthermore, the reactive oxygen species content, catalase (CAT) and superoxide dismutase (SOD) activity indicated that RLs activated the oxidative stress response of B. cereus in response to RLs. Fresh wet noodles (FWN) were used as a food model, and RLs showed a significant killing effect on B. cereus with a sustained inhibitory effect at the concentrations ranging from 128.0 to 1024.0 mg/kg. Additionally, RLs promoted the conversion of free water to bound water in FWN, which improved the storage of FWN and made the taste more resilient and chewy. These results suggest that RLs could be a potential alternative to antimicrobial agents and preservatives for applications in food processing.
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Affiliation(s)
- Yongwu Niu
- National Engineering Research Center for Wheat and Corn Further Processing, Henan University of Technology, Zhengzhou 450001, China
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Yiming Sun
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Yanxiao Yang
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Ben Niu
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Yuchen Wang
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Shan Qiao
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
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9
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Tambone E, Ceresa C, Marchetti A, Chiera S, Anesi A, Nollo G, Caola I, Bosetti M, Fracchia L, Ghensi P, Tessarolo F. Rhamnolipid 89 Biosurfactant Is Effective against Streptococcus oralis Biofilm and Preserves Osteoblast Behavior: Perspectives in Dental Implantology. Int J Mol Sci 2023; 24:14014. [PMID: 37762317 PMCID: PMC10530769 DOI: 10.3390/ijms241814014] [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: 08/21/2023] [Revised: 09/08/2023] [Accepted: 09/11/2023] [Indexed: 09/29/2023] Open
Abstract
Biofilm-related peri-implant diseases represent the major complication for osteointegrated dental implants, requiring complex treatments or implant removal. Microbial biosurfactants emerged as new antibiofilm coating agents for implantable devices thanks to their high biocompatibility. This study aimed to assess the efficacy of the rhamnolipid 89 biosurfactant (R89BS) in limiting Streptococcus oralis biofilm formation and dislodging sessile cells from medical grade titanium, but preserving adhesion and proliferation of human osteoblasts. The inhibitory activity of a R89BS coating on S. oralis biofilm formation was assayed by quantifying biofilm biomass and microbial cells on titanium discs incubated up to 72 h. R89BS dispersal activity was addressed by measuring residual biomass of pre-formed biofilms after rhamnolipid treatment up to 24 h. Adhesion and proliferation of human primary osteoblasts on R89BS-coated titanium were evaluated by cell count and adenosine-triphosphate quantification, while cell differentiation was studied by measuring alkaline phosphatase activity and observing mineral deposition. Results showed that R89BS coating inhibited S. oralis biofilm formation by 80% at 72 h and dislodged 63-86% of pre-formed biofilms in 24 h according to concentration. No change in the adhesion of human osteoblasts was observed, whereas proliferation was reduced accompanied by an increase in cell differentiation. R89BS effectively counteracts S. oralis biofilm formation on titanium and preserves overall osteoblasts behavior representing a promising preventive strategy against biofilm-related peri-implant diseases.
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Affiliation(s)
- Erica Tambone
- Department of Industrial Engineering & BIOtech, University of Trento, 38123 Trento, Italy; (E.T.); (S.C.); (G.N.); (F.T.)
| | - Chiara Ceresa
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale “A. Avogadro”, 28100 Novara, Italy; (A.M.); (M.B.); (L.F.)
| | - Alice Marchetti
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale “A. Avogadro”, 28100 Novara, Italy; (A.M.); (M.B.); (L.F.)
| | - Silvia Chiera
- Department of Industrial Engineering & BIOtech, University of Trento, 38123 Trento, Italy; (E.T.); (S.C.); (G.N.); (F.T.)
| | - Adriano Anesi
- Department of Laboratory Medicine, Azienda Provinciale per i Servizi Sanitari, 38122 Trento, Italy; (A.A.); (I.C.)
| | - Giandomenico Nollo
- Department of Industrial Engineering & BIOtech, University of Trento, 38123 Trento, Italy; (E.T.); (S.C.); (G.N.); (F.T.)
| | - Iole Caola
- Department of Laboratory Medicine, Azienda Provinciale per i Servizi Sanitari, 38122 Trento, Italy; (A.A.); (I.C.)
| | - Michela Bosetti
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale “A. Avogadro”, 28100 Novara, Italy; (A.M.); (M.B.); (L.F.)
| | - Letizia Fracchia
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale “A. Avogadro”, 28100 Novara, Italy; (A.M.); (M.B.); (L.F.)
| | - Paolo Ghensi
- Department CIBIO, University of Trento, 38123 Trento, Italy;
| | - Francesco Tessarolo
- Department of Industrial Engineering & BIOtech, University of Trento, 38123 Trento, Italy; (E.T.); (S.C.); (G.N.); (F.T.)
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10
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Paul D, Pandey A, Neogi S. Bacterial cell permeability study by metal oxide and mixed metal oxide nanoparticles: analysis of the factors contributing to the antibacterial activity of nanoparticles. World J Microbiol Biotechnol 2023; 39:281. [PMID: 37589765 DOI: 10.1007/s11274-023-03712-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 07/21/2023] [Indexed: 08/18/2023]
Abstract
In this work, we investigate the nanoparticle-cell wall interaction by NiO and mixed metal oxide CuO-NiO nanoparticles. We have synthesized and characterized the nanoparticles using XRD, FESEM, EDS, UV vis. spectroscopy, FTIR, Zeta, and TEM analysis in our previous work. Furthermore, a preliminary antibacterial study showed that both the nanoparticles performed very well as antibacterial agents. In this extended work, we investigate the mechanism of interaction of NiO and CuO-NiO nanoparticles with S. aureus and E. coli cells as there are number of studies for antibacterial mechanism of CuO nanoparticles. The uptake of crystal violet dye in the outer bacterial membrane, the release of ß-galactosidase enzyme, and relative electric conductivity assay were used to investigate changes in the permeability and integrity of the cell membrane. Superoxide ions, which are produced intracellularly as ROS by nanoparticles, severely damage bacterial membranes. Zeta potential measurement, which resulted in surface charge neutralization, proved membrane instability. FTIR analysis was used to identify changes in the proteins, carbohydrates, and fatty acids that make up the chemical composition of cell surfaces. AFM imaging demonstrated extensive alteration of the nanomechanical and surface characteristics. Confocal microscopy examination supported the DNA fragmentation and nanoparticle-cell adhesion. Due to their enhanced antibacterial activity when compared to monometallic oxide nanoparticles, this study demonstrated that mixed metal oxides can be employed in the health and biomedical sectors.
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Affiliation(s)
- Debashri Paul
- Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India
| | - Ankur Pandey
- Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India
| | - Sudarsan Neogi
- Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India.
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11
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Aminolipids elicit functional trade-offs between competitiveness and bacteriophage attachment in Ruegeria pomeroyi. THE ISME JOURNAL 2023; 17:315-325. [PMID: 36477724 PMCID: PMC9938194 DOI: 10.1038/s41396-022-01346-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 11/17/2022] [Accepted: 11/21/2022] [Indexed: 12/12/2022]
Abstract
Lipids play a crucial role in maintaining cell integrity and homeostasis with the surrounding environment. Cosmopolitan marine roseobacter clade (MRC) and SAR11 clade bacteria are unique in that, in addition to glycerophospholipids, they also produce an array of amino acid-containing lipids that are conjugated with beta-hydroxy fatty acids through an amide bond. Two of these aminolipids, the ornithine aminolipid (OL) and the glutamine aminolipid (QL), are synthesized using the O-acetyltransferase OlsA. Here, we demonstrate that OL and QL are present in both the inner and outer membranes of the Gram-negative MRC bacterium Ruegeria pomeroyi DSS-3. In an olsA mutant, loss of these aminolipids is compensated by a concurrent increase in glycerophospholipids. The inability to produce aminolipids caused significant changes in the membrane proteome, with the membrane being less permeable and key nutrient transporters being downregulated while proteins involved in the membrane stress response were upregulated. Indeed, the import of 14C-labelled choline and dimethylsulfoniopropionate, as a proxy for the transport of key marine nutrients across membranes, was significantly impaired in the olsA mutant. Moreover, the olsA mutant was significantly less competitive than the wild type (WT) being unable to compete with the WT strain in co-culture. However, the olsA mutant unable to synthesize these aminolipids is less susceptible to phage attachment. Together, these data reveal a critical role for aminolipids in the ecophysiology of this important clade of marine bacteria and a trade-off between growth and avoidance of bacteriophage attachment.
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12
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Evaluation of Antimicrobial Properties and Potential Applications of Pseudomonas gessardii M15 Rhamnolipids towards Multiresistant Staphylococcus aureus. Pharmaceutics 2023; 15:pharmaceutics15020700. [PMID: 36840022 PMCID: PMC9958974 DOI: 10.3390/pharmaceutics15020700] [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: 01/26/2023] [Revised: 02/10/2023] [Accepted: 02/17/2023] [Indexed: 02/22/2023] Open
Abstract
Staphylococcus aureus is a Gram-positive opportunistic human pathogen responsible for severe infections and thousands of deaths annually, mostly due to its multidrug-resistant (MDR) variants. The cell membrane has emerged as a promising new therapeutic target, and lipophilic molecules, such as biosurfactants, are currently being utilized. Herein, we evaluated the antimicrobial activity of a rhamnolipids mixture produced by the Antarctic marine bacterium Pseudomonas gessardii M15. We demonstrated that our mixture has bactericidal activity in the range of 12.5-50 µg/mL against a panel of clinical MDR isolates of S. aureus, and that the mixture eradicated the bacterial population in 30 min at MIC value, and in 5 min after doubling the concentration. We also tested abilities of RLs to interfere with biofilm at different stages and determined that RLs can penetrate biofilm and kill the bacteria at sub-MICs values. The mixture was then used to functionalize a cotton swab to evaluate the prevention of S. aureus proliferation. We showed that by using 8 µg of rhamnolipids per swab, the entire bacterial load is eradicated, and just 0.5 µg is sufficient to reduce the growth by 99.99%. Our results strongly indicate the possibility of using this mixture as an additive for wound dressings for chronic wounds.
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13
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Polysorbate 21 Can Modulate the Antibacterial Potential of Two Pyrazol Derivatives. Biomolecules 2022; 12:biom12121819. [PMID: 36551246 PMCID: PMC9776004 DOI: 10.3390/biom12121819] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 11/29/2022] [Accepted: 12/03/2022] [Indexed: 12/12/2022] Open
Abstract
The combination of two compounds with known antimicrobial activity may, in some cases, be an effective way to limit the resistance to antibiotics of specific pathogens. Molecules carrying pyrazole moiety are well known for their bioactive properties and have wide applicability in the medical and pharmaceutical field. Surfactants have, among other useful properties, the ability to affect the growth of microorganisms. The paper reports on the effect of the combination of two pyrazole derivatives, (1H-pyrazol-1-yl) methanol 1-hydroxymethylpyrazole (SAM1) and 1,1'methandiylbis (1H-pyrazol) (AM1), with sorbitan monolaurate (polysorbate 21, Tween 21, T21) on the growth of Gram-positive and Gram-negative bacteria. The results demonstrated a different ability of this combination to inhibit Staphylococcus aureus and Escherichia coli. T21 intensified the inhibitory activity of the pyrazoles to a greater extent in the Gram-negative bacteria compared to the Gram-positive ones, a fact confirmed by time-kill experiments. The experimental data showed that the association of T21 with the pyrazoles led to the increased release of intracellular material and a more intense uptake of crystal violet, which indicates that the potentiation of the antibacterial effect was based on the modification of the normal permeability of bacterial cells. T21 acted as a modulating factor and increased the permeability of the membrane, allowing the accelerated penetration of the pyrazoles inside the bacterial cells. This fact is important in controlling the global increase in microbial resistance to antibiotics and antimicrobials and finding viable solutions to overcome the antibiotic crisis. The paper highlights the possibility of using non-toxic surfactant molecules in antimicrobial combinations with practical applications. This could widen the range of adjuvants in applications which would be useful in the control of resistant microorganisms.
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14
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Efficacy of natural antimicrobial peptides versus peptidomimetic analogues: a systematic review. Future Med Chem 2022; 14:1899-1921. [PMID: 36421051 DOI: 10.4155/fmc-2022-0160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Aims: This systematic review was carried out to determine whether synthetic peptidomimetics exhibit significant advantages over antimicrobial peptides in terms of in vitro potency. Structural features - molecular weight, charge and length - were examined for correlations with activity. Methods: Original research articles reporting minimum inhibitory concentration values against Escherichia coli, indexed until 31 December 2020, were searched in PubMed/ScienceDirect/Google Scholar and evaluated using mixed-effects models. Results: In vitro antimicrobial activity of peptidomimetics resembled that of antimicrobial peptides. Net charge significantly affected minimum inhibitory concentration values (p < 0.001) with a trend of 4.6% decrease for increments in charge by +1. Conclusion: AMPs and antibacterial peptidomimetics exhibit similar potencies, providing an opportunity to exploit the advantageous stability and bioavailability typically associated with peptidomimetics.
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15
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Ali AM, Hill HJ, Elkhouly GE, Bakkar MR, Raya NR, Stamataki Z, Abo-Zeid Y. Rhamnolipid Nano-Micelles Inhibit SARS-CoV-2 Infection and Have No Dermal or Eye Toxic Effects in Rabbits. Antibiotics (Basel) 2022; 11:1556. [PMID: 36358211 PMCID: PMC9686650 DOI: 10.3390/antibiotics11111556] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 10/26/2022] [Accepted: 10/30/2022] [Indexed: 11/09/2022] Open
Abstract
Hand hygiene is considered to be the key factor in controlling and preventing infection, either in hospital care settings or in the community. Alcohol-based hand sanitizers are commonly used due to their rapid action and broad spectrum of microbicidal activity, offering protection against bacteria and viruses. However, their frequent administration during COVID-19 pandemic was associated with serious hazards, such as skin toxicity, including irritation, skin dermatitis, skin dryness or cracking, along with peeling redness or itching, with the higher possibility of getting infections. Thus, there is a need to find alternative and novel approaches for hand sanitation. In our previous publications, we reported that rhamnolipids nano-micelles had a comparable antibacterial activity to alcohol-based hand sanitizer and a lower cytotoxicity against human dermal fibroblast cells. In the current study, we investigated the antiviral activity of rhamnolipids nano-micelles against SARS-CoV-2. There was no cytotoxic effect on Vero cells noted at the tested concentrations of rhamnolipids nano-micelles. The rhamnolipids nano-micelles solution at 20, 78, and 312 µg/mL all demonstrated a significant (p < 0.05) decrease of virus infectivity compared to the virus only and the blank vehicle sample. In addition, an acute irritation test was performed on rabbits to further ascertain the biosafety of rhamnolipids nano-micelles. In the eye and skin irritation tests, no degree of irritation was recorded after topical application of rhamnolipids nano-micelles. In addition, histopathological, biomarker, and hematological analyses from animals treated with rhamnolipids nano-micelles were identical to those recorded for untreated animal. From the above, we can conclude that rhamnolipids nano-micelles are a good candidate to be used as a hand sanitizer instead of alcohol-based hand sanitizers. However, they must still be tested in the future among healthcare workers (HCW) in a health care setting to ascertain their antimicrobial efficacy and safety compared to alcohol-based hand sanitizers.
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Affiliation(s)
- Alaa M Ali
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt
| | - Harriet J Hill
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham B15 2TT, UK
| | - Gehad E Elkhouly
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Helwan University, Cairo 11795, Egypt
- Helwan Nanotechnology Center, Helwan University, Cairo 11792, Egypt
| | - Marwa Reda Bakkar
- Botany and Microbiology Department, Faculty of Science, Helwan University, Cairo 11795, Egypt
| | - Nermeen R Raya
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Helwan University, Cairo 11795, Egypt
- Helwan Nanotechnology Center, Helwan University, Cairo 11792, Egypt
| | - Zania Stamataki
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham B15 2TT, UK
| | - Yasmin Abo-Zeid
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Helwan University, Cairo 11795, Egypt
- Helwan Nanotechnology Center, Helwan University, Cairo 11792, Egypt
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16
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Ma XJ, Wang T, Zhang HM, Shao JQ, Jiang M, Wang H, Zhu HX, Zhou D. Comparison of inhibitory effects and mechanisms of lactonic sophorolipid on different pathogenic bacteria. Front Microbiol 2022; 13:929932. [PMID: 36238587 PMCID: PMC9552708 DOI: 10.3389/fmicb.2022.929932] [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: 04/27/2022] [Accepted: 08/17/2022] [Indexed: 11/26/2022] Open
Abstract
Crude sophorolipids (SLs) have been proven to perform varying degrees of inhibitory effects on different pathogenic bacteria. However, systematic comparative studies of pure lactonic sophorolipid (LSL) among different types of bacteria are few. In this study, the antibacterial effects and mechanisms of LSL on pathogenic bacteria of Staphylococcus aureus, Lactobacillus sp., Pseudomonas aeruginosa, and Escherichia coli were investigated. Bacteriostatic circle, antibacterial rate, minimum inhibitory concentration (MIC), and minimum bactericidal concentration (MBC) of LSL on different pathogenic bacteria were measured. Then, the antibacterial mechanisms of LSL on S. aureus and P. aeruginosa were explored using ultrastructural observation, cell membrane permeability analysis, intracellular ATP content determination, and extracellular UV absorption detection. With the minimum MIC and MBC values of 0.05 and 0.20 mg/ml, LSL exhibited the best inhibitory effect against S. aureus, followed by P. aeruginosa. LSL showed no significant inhibitory effect on E. coli and Lactobacillus sp. For both S. aureus and P. aeruginosa, LSL achieved bacteriostatic and bactericidal effects by destroying the cell wall, increasing the permeability of the cell membrane and leading to the flow out of intracellular contents. However, the action mode and action intensity of LSL on the cell wall and membrane of these two bacteria were significantly different. LSL had a greater influence on the cell membrane of S. aureus by “leaking,” while it exhibited a stronger effect on the cell wall of P. aeruginosa by “blasting.” These results contributed to a better understanding of the relationship between LSL and different bacterial cell structures, further suggesting the conclusion that LSL might be used for the targeted treatment of special pathogenic bacteria.
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Affiliation(s)
- Xiao-jing Ma
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
- Ministry of Education, Engineering Research Center of Bio-Process, Hefei University of Technology, Hefei, China
- *Correspondence: Xiao-jing Ma,
| | - Tong Wang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Hui-min Zhang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Jun-qian Shao
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Mei Jiang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Huai Wang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
- Ministry of Education, Engineering Research Center of Bio-Process, Hefei University of Technology, Hefei, China
| | - Hui-xia Zhu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
- Ministry of Education, Engineering Research Center of Bio-Process, Hefei University of Technology, Hefei, China
| | - Dong Zhou
- Department of Pediatrics, Qilu Hospital of Shandong University, Jinan, China
- Dong Zhou,
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17
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Sophorolipids—Bio-Based Antimicrobial Formulating Agents for Applications in Food and Health. Molecules 2022; 27:molecules27175556. [PMID: 36080322 PMCID: PMC9457973 DOI: 10.3390/molecules27175556] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 08/25/2022] [Accepted: 08/25/2022] [Indexed: 11/22/2022] Open
Abstract
Sophorolipids are well-known glycolipid biosurfactants, produced mainly by non-pathogenic yeast species such as Candida bombicola with high yield. Its unique environmental compatibility and high biodegradable properties have made them a focus in the present review for their promising applications in diverse areas. This study aims to examine current research trends of sophorolipids and evaluate their applications in food and health. A literature search was conducted using different research databases including PubMed, ScienceDirect, EBSCOhost, and Wiley Online Library to identify studies on the fundamental mechanisms of sophorolipids and their applications in food and health. Studies have shown that various structural forms of sophorolipids exhibit different biological and physicochemical properties. Sophorolipids represent one of the most attractive biosurfactants in the industry due to their antimicrobial action against both Gram-positive and Gram-negative microorganisms for applications in food and health sectors. In this review, we have provided an overview on the fundamental properties of sophorolipids and detailed analysis of their applications in diverse areas such as food, agriculture, pharmaceutical, cosmetic, anticancer, and antimicrobial activities.
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18
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Surface-Active Compounds Produced by Microorganisms: Promising Molecules for the Development of Antimicrobial, Anti-Inflammatory, and Healing Agents. Antibiotics (Basel) 2022; 11:antibiotics11081106. [PMID: 36009975 PMCID: PMC9404966 DOI: 10.3390/antibiotics11081106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 07/29/2022] [Accepted: 08/02/2022] [Indexed: 11/25/2022] Open
Abstract
Surface-active compounds (SACs), biomolecules produced by bacteria, yeasts, and filamentous fungi, have interesting properties, such as the ability to interact with surfaces as well as hydrophobic or hydrophilic interfaces. Because of their advantages over other compounds, such as biodegradability, low toxicity, antimicrobial, and healing properties, SACs are attractive targets for research in various applications in medicine. As a result, a growing number of properties related to SAC production have been the subject of scientific research during the past decade, searching for potential future applications in biomedical, pharmaceutical, and therapeutic fields. This review aims to provide a comprehensive understanding of the potential of biosurfactants and emulsifiers as antimicrobials, modulators of virulence factors, anticancer agents, and wound healing agents in the field of biotechnology and biomedicine, to meet the increasing demand for safer medical and pharmacological therapies.
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19
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20
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A comparative study on chemical characterization and properties of surface active compounds from Gram-positive Bacillus and Gram-negative Ochrobactrum strains utilizing pure hydrocarbons and waste mineral lubricating oils. World J Microbiol Biotechnol 2022; 38:141. [PMID: 35710855 DOI: 10.1007/s11274-022-03321-5] [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: 12/21/2021] [Accepted: 05/25/2022] [Indexed: 10/18/2022]
Abstract
Mineral lubricating oils are widely used in various industrial sectors for their applications in maintenance and functioning of machineries. However, indiscriminate dumping of these used oils have resulted in polluting the natural reservoirs which subsequently destroys ecological balance. Bacteria can emulsify or lower surface tension between phases of immiscible substrates and can acquire them as their carbon and energy sources. Such a phenomenon is mediated by production of extracellular polymers which can function as eminent surface active compounds based on their surfactant or emulsifying nature. The comparison between bacterial strains (Gram-positive Bacillus stratosphericus A15 and Gram-negative Ochrobactrum pseudintermedium C1) on utilization of pure straight chain hydrocarbons, waste mineral lubricating oils as sole carbon source and chemical characterization of the synthesized surface active compounds were studied. Characterization analysis by Ultraviolet Visible spectrophotometry, Fourier transform infrared spectroscopy, Nuclear Magnetic Resonance spectroscopy, Carbon-Hydrogen-Nitrogen analysis has given detailed structural elucidation of surface active compounds. The contrasting nature of bacterial strains in utilization of different hydrocarbons of waste mineral lubricating oils was observed in Gas Chromatography-Mass Spectroscopy analysis. The variation between both strains in utilization of hydrocarbons can be manifested in chemical structural differences and properties of the produced surface active compounds. Scanning Electron Microscopy has given detailed insight into the microstructural difference of the compounds. The utilization of lubricating oils can address waste disposal problem and offer an economical feasible approach for bacterial production of surface active compounds. Our results suggest that these surface active compounds can maneuver applications in environmental bioremediation and agriculture, pharmaceuticals and food as functional biomaterials.
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21
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Consoli GML, Granata G, Ginestra G, Marino A, Toscano G, Nostro A. Antibacterial Nanoassembled Calix[4]arene Exposing Choline Units Inhibits Biofilm and Motility of Gram Negative Bacteria. ACS Med Chem Lett 2022; 13:916-922. [DOI: 10.1021/acsmedchemlett.2c00015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 05/06/2022] [Indexed: 11/01/2022] Open
Affiliation(s)
| | - Giuseppe Granata
- Institute of Biomolecular Chemistry-C.N.R., Catania 95126, Italy
| | - Giovanna Ginestra
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina 98122, Italy
| | - Andreana Marino
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina 98122, Italy
| | - Giovanni Toscano
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina 98122, Italy
| | - Antonia Nostro
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina 98122, Italy
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22
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Materials Based on Quaternized Polysulfones with Potential Applications in Biomedical Field: Structure-Properties Relationship. Int J Mol Sci 2022; 23:ijms23094721. [PMID: 35563112 PMCID: PMC9104560 DOI: 10.3390/ijms23094721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 04/20/2022] [Accepted: 04/22/2022] [Indexed: 02/04/2023] Open
Abstract
Starting from the bactericidal properties of functionalized polysulfone (PSFQ) and due to its excellent biocompatibility, biodegradability, and performance in various field, cellulose acetate phthalate (CAP) and polyvinyl alcohol (PVA), as well as their blends (PSFQ/CAP and PSFQ/PVA), have been tested to evaluate their applicative potential in the biomedical field. In this context, because the polymer processing starts from the solution phase, in the first step, the rheological properties were followed in order to assess and control the structural parameters. The surface chemistry analysis, surface properties, and antimicrobial activity of the obtained materials were investigated in order to understand the relationship between the polymers’ structure–surface properties and organization form of materials (fibers and/or films), as important indicators for their future applications. Using the appropriate organization form of the polymers, the surface morphology and performance, including wettability and water permeation, were improved and controlled—these being the desired and needed properties for applications in the biomedical field. Additionally, after antimicrobial activity testing against different bacteria strains, the control of the inhibition mechanism for the analyzed microorganisms was highlighted, making it possible to choose the most efficient polymers/blends and, consequently, the efficiency as biomaterials in targeted applications.
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23
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Phuna ZX, Panda BP, Hawala Shivashekaregowda NK, Madhavan P. Nanoprotection from SARS-COV-2: would nanotechnology help in Personal Protection Equipment (PPE) to control the transmission of COVID-19? INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2022:1-30. [PMID: 35253535 DOI: 10.1080/09603123.2022.2046710] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 02/21/2022] [Indexed: 06/14/2023]
Abstract
The coronavirus disease 2019 (COVID-19) has caused a worldwide outbreak. The severe acute respiratory syndrome coronavirus 2 virus can be transmitted human-to-human through droplets and close contact where personal protective equipment (PPE) is imperative to protect the individuals. The advancement of nanotechnology with significant nanosized properties can confer a higher form of protection. Incorporation of nanotechnology into facemasks can exhibit antiviral properties. Nanocoating on surfaces can achieve self-disinfecting purposes and be applied in highly populated places. Moreover, nano-based hand sanitizers can confer better sterilizing efficacies with low skin irritation as compared to alcohol-based hand sanitizers. The present review discusses the incorporation of nanotechnology into nano-based materials and coatings in facemasks, self-surface disinfectants and hand sanitizers, in the hope to contribute to the current understanding of PPE to combat COVID-19.
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Affiliation(s)
- Zhi Xin Phuna
- School of Medicine, Faculty of Health and Medical Sciences, Taylor's University, Subang Jaya, Selangor, Malaysia
| | - Bibhu Prasad Panda
- Department of Pharmaceutical Technology, Schoolof Pharmacy, Faculty of Health & Medical Sciences, Taylor's University, Subang Jaya, Malaysia
| | | | - Priya Madhavan
- School of Medicine, Faculty of Health and Medical Sciences, Taylor's University, Subang Jaya, Selangor, Malaysia
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Evaluation of antimicrobial activity of the extract of Streptomyces euryhalinus isolated from the Indian Sundarbans. Arch Microbiol 2021; 204:34. [PMID: 34927220 DOI: 10.1007/s00203-021-02698-5] [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: 09/01/2021] [Revised: 11/01/2021] [Accepted: 11/08/2021] [Indexed: 10/19/2022]
Abstract
The discovery of new antimicrobials is the prime target in the fight against antimicrobial resistance. The continuous search for new lead compounds from bacteria of untapped and extreme ecosystems such as mangroves is currently being undertaken. This study describes the metabolite profiling of the Streptomyces euryhalinus culture extract. Previously, Streptomyces euryhalinus was isolated from the mangrove forest of Indian Sundarbans as a novel microorganism. The antimicrobial mechanism of action of Streptomyces euryhalinus culture extract against bacteria and fungi has been analyzed in this study. The gas chromatography-mass spectrometry profile of the ethyl acetate extract bacterial culture displayed the presence of several bioactive compounds with antibacterial, antifungal and antioxidant properties. The bacterial extract showed significant antimicrobial activity in terms of zone of inhibition, minimum inhibitory concentration, minimum bactericidal concentration, and minimum fungicidal concentration. Moreover, substantial capacity to alter or damage the inner membrane as well as the outer membrane of the gram-positive and gram-negative bacteria was exhibited by the bacterial extract. This membrane alteration or damaging potential of the extract is the mechanism of action. Biofilm formation inhibition property of the extract also signified its antimicrobial action, and possible use against resistant bacteria. The extract has shown notable activity against the virulence factors like prevention of hemolysis in bacteria and inhibition of secreted aspartyl proteinase in fungi. These functions of the bacterial extract have revealed the extent of its action in the prevention of infection by terminating the secretory virulence factors and by damaging the tissue.
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25
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Elakkiya VT, Sureshkumar P, Yoha KS, Subhasri D. Studies on antibacterial and chemotaxis properties of Pseudomonas aeruginosa TEN01 biomass-derived sustainable biosurfactant. CHEMOSPHERE 2021; 285:131381. [PMID: 34329147 DOI: 10.1016/j.chemosphere.2021.131381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 06/15/2021] [Accepted: 06/27/2021] [Indexed: 06/13/2023]
Abstract
Biosurfactant producing bacterial strains were isolated from oil-contaminated sites at Chennai Petroleum Corporation Limited, Chennai, the potential strain was selected and identified as Pseudomonas aeruginosa TEN01 by 16 S rRNA sequencing technique. Biosurfactant was produced from cassava solid waste from the sago industry. Further, it was extracted by solvent extraction and partially purified by column chromatography. The partially purified biosurfactant was qualitatively analyzed by Thin Layer Chromatography (TLC), quantitatively analyzed by anthrone assay and characterized by Fourier Transform Infra-Red Spectroscopy (FT-IR) and Gas Chromatography-Mass Spectrometry (GC-MS). Rf value and chemical groups confirm the presence of glycolipid in the partially purified biosurfactant. GC-MS results confirmed the presence of long-chain fatty acids and carbohydrate which is found to be mainly present in glycolipids. Biosurfactants are surface-active molecules which have been found to be the best alternative to chemical-based surfactants. The present study focuses on modifying the cell surface using a biosurfactant from P. aeruginosa TEN01 to enhance membrane permeabilization. Antibacterial and chemotaxis properties of biosurfactant from P. aeruginosa TEN01 were found to be better towards Xenorhabdus poinarii, a bio-pesticide producing microbial strain, X. poinarii exhibited 81.7% adhesion to hydrocarbons upon biosurfactant treatment as analyzed by Bacterial Adhesion to Hydrocarbon (BATH) assay. The alteration in the membrane permeability was tested in X. poinarii using biosurfactant and chemical surfactants viz. Sodium dodecyl sulfate (SDS) and toluene by estimating the amount of intracellular protein released. High protein recovery (51.55%) was achieved with a biosurfactant. Cell viability in the biosurfactant-treated cells was also high (93.98%) in comparison to cells treated with chemical surfactants. Increased recovery of intracellular protein along with high cell viability makes the biosurfactant a potential candidate for application in numerous environmental fields.
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Affiliation(s)
- V Tamil Elakkiya
- Department of Biotechnology, Bharathidasan Institute of Technology, Anna University, Tiruchirappalli, 620 024, India.
| | - P Sureshkumar
- Department of Biotechnology, Bharathidasan Institute of Technology, Anna University, Tiruchirappalli, 620 024, India.
| | - K S Yoha
- Department of Biotechnology, Bharathidasan Institute of Technology, Anna University, Tiruchirappalli, 620 024, India.
| | - D Subhasri
- Department of Biotechnology, Bharathidasan Institute of Technology, Anna University, Tiruchirappalli, 620 024, India.
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Chaudhary M, Bhagyawant SS, Srivastava N. Effects of Prednisolone Derivative and Panaxydol: Biosurfactants on Cell Wall Integrity of Acne-Causing Resistant Bacteria. Cell Biochem Biophys 2021; 80:229-243. [PMID: 34709575 DOI: 10.1007/s12013-021-01038-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Accepted: 08/17/2021] [Indexed: 11/26/2022]
Abstract
Acne is one of the most common dermatological skin problem caused due to inflammation of the skin, leading to unfavorable growth of Propionibacterium acnes. It is a slow growing anaerobic, gram-positive bacterium that releases chemotactic factors and leads to the complex pathogenicity of acne. There are several acne treatments/therapies available, but topical therapy is usually the first choice for mild to moderate acne, and as the severity of the acne increases, the treatment modalities fail. There are many acne treatment options available, but topical therapy is best suited for mild - to - moderate skin problems, and then as the seriousness of the acne grows, the therapeutic approaches fall short. Biosurfactants are surfactants produced from plants or animals; Saponins are plant derived non-ionic biosurfactants which have steroidal and triterpenic glycosides distributed largely in plant kingdom. Numerous studies conducted by scientists have established the antimicrobial activity of and are considered more advantageous over synthetic precursors as they are eco-friendly, cheap and non-toxic. The present study was undertaken to investigate the antibacterial activity of saponins (bio-surfactants) characterized using mass spectroscopy against acne-causing bacteria. The discharge of cellular components including protein and UV-sensitive materials in the cell-free supernatant was provoked by saponin, confirming the cellular and membrane disturbances.. Furthermore, various morphological changes on the bacterial cell surface structure by Transmission electron microscopy and scanning electron microscopy revealed the disruption of the cell integrity leading to death. Results confirmed presence of non-ionic surfactants primarily affecting the disruption and destruction to the bacteria which indicates that saponins are efficient components with great potential applications in various pharmaceutical preparations. Effects of Prednisolone derivative and Panaxydol: Biosurfactants on cell wall integrity of Acne-Causing Resistant Bacteria.
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Affiliation(s)
- Monika Chaudhary
- Department of Bioscience and Biotechnology, Banasthali Vidyapith, Banasthali, Rajasthan, India
| | | | - Nidhi Srivastava
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research (NIPER), Lucknow, Uttar Pradesh, India.
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Hoferick R, Ntovas A, Alhusaini Q, Müller M, Barbe S, Schönherr H. Enhanced microbial inactivation by carbon dioxide through mechanical effects. J Supercrit Fluids 2021. [DOI: 10.1016/j.supflu.2021.105273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Petrillo G, Tavani C, Bianchi L, Benzi A, Cavalluzzi MM, Salvagno L, Quintieri L, De Palma A, Caputo L, Rosato A, Lentini G. Densely Functionalized 2-Methylideneazetidines: Evaluation as Antibacterials. Molecules 2021; 26:3891. [PMID: 34202191 PMCID: PMC8271477 DOI: 10.3390/molecules26133891] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/21/2021] [Accepted: 06/22/2021] [Indexed: 01/27/2023] Open
Abstract
Twenty-two novel, variously substituted nitroazetidines were designed as both sulfonamide and urethane vinylogs possibly endowed with antimicrobial activity. The compounds under study were obtained following a general procedure recently developed, starting from 4-nitropentadienoates deriving from a common β-nitrothiophenic precursor. While being devoid of any activity against fungi and Gram-negative bacteria, most of the title compounds performed as potent antibacterial agents on Gram-positive bacteria (E. faecalis and three strains of S. aureus), with the most potent congener being the 1-(4-chlorobenzyl)-3-nitro-4-(p-tolyl)azetidine 22, which displayed potency close to that of norfloxacin, the reference antibiotic (minimum inhibitory concentration values 4 and 1-2 μg/mL, respectively). Since 22 combines a relatively efficient activity against Gram-positive bacteria and a cytotoxicity on eucharyotic cells only at 4-times higher concentrations (inhibiting concentration on 50% of the cultured eukaryotic cells: 36 ± 10 μM, MIC: 8.6 μM), it may be considered as a promising hit compound for the development of a new series of antibacterials selectively active on Gram-positive pathogens. The relatively concise synthetic route described herein, based on widely available starting materials, could feed further structure-activity relationship studies, thus allowing for the fine investigation and optimization of the toxico-pharmacological profile.
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Affiliation(s)
- Giovanni Petrillo
- Department of Chemistry and Industrial Chemistry, University of Genoa, Via Dodecaneso 31, I-16146 Genoa, Italy; (C.T.); (L.B.); (A.B.)
| | - Cinzia Tavani
- Department of Chemistry and Industrial Chemistry, University of Genoa, Via Dodecaneso 31, I-16146 Genoa, Italy; (C.T.); (L.B.); (A.B.)
| | - Lara Bianchi
- Department of Chemistry and Industrial Chemistry, University of Genoa, Via Dodecaneso 31, I-16146 Genoa, Italy; (C.T.); (L.B.); (A.B.)
| | - Alice Benzi
- Department of Chemistry and Industrial Chemistry, University of Genoa, Via Dodecaneso 31, I-16146 Genoa, Italy; (C.T.); (L.B.); (A.B.)
| | - Maria Maddalena Cavalluzzi
- Department of Pharmacy–Pharmaceutical Sciences, University of Bari Aldo Moro, Via E. Orabona n. 4, 70126 Bari, Italy; (M.M.C.); (L.S.); (A.R.); (G.L.)
| | - Lara Salvagno
- Department of Pharmacy–Pharmaceutical Sciences, University of Bari Aldo Moro, Via E. Orabona n. 4, 70126 Bari, Italy; (M.M.C.); (L.S.); (A.R.); (G.L.)
| | - Laura Quintieri
- Institute of Sciences of Food Production (CNR-ISPA) National Council of Research, Via G. Amendola, 122/O, 70126 Bari, Italy; (L.Q.); (L.C.)
| | - Annalisa De Palma
- Department of Biosciences, Biotechnologies, and Biopharmaceutics, University of Bari Aldo Moro, Via E. Orabona 4, 70126 Bari, Italy;
| | - Leonardo Caputo
- Institute of Sciences of Food Production (CNR-ISPA) National Council of Research, Via G. Amendola, 122/O, 70126 Bari, Italy; (L.Q.); (L.C.)
| | - Antonio Rosato
- Department of Pharmacy–Pharmaceutical Sciences, University of Bari Aldo Moro, Via E. Orabona n. 4, 70126 Bari, Italy; (M.M.C.); (L.S.); (A.R.); (G.L.)
| | - Giovanni Lentini
- Department of Pharmacy–Pharmaceutical Sciences, University of Bari Aldo Moro, Via E. Orabona n. 4, 70126 Bari, Italy; (M.M.C.); (L.S.); (A.R.); (G.L.)
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Bakkar MR, Faraag AHI, Soliman ERS, Fouda MS, Sarguos AMM, McLean GR, Hebishy AMS, Elkhouly GE, Raya NR, Abo-zeid Y. Rhamnolipids Nano-Micelles as a Potential Hand Sanitizer. Antibiotics (Basel) 2021; 10:751. [PMID: 34206211 PMCID: PMC8300634 DOI: 10.3390/antibiotics10070751] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 05/21/2021] [Accepted: 05/24/2021] [Indexed: 02/06/2023] Open
Abstract
COVID-19 is a pandemic disease caused by the SARS-CoV-2, which continues to cause global health and economic problems since emerging in China in late 2019. Until now, there are no standard antiviral treatments. Thus, several strategies were adopted to minimize virus transmission, such as social distancing, face covering protection and hand hygiene. Rhamnolipids are glycolipids produced formally by Pseudomonas aeruginosa and as biosurfactants, they were shown to have broad antimicrobial activity. In this study, we investigated the antimicrobial activity of rhamnolipids against selected multidrug resistant bacteria and SARS-CoV-2. Rhamnolipids were produced by growing Pseudomonas aeruginosa strain LeS3 in a new medium formulated from chicken carcass soup. The isolated rhamnolipids were characterized for their molecular composition, formulated into nano-micelles, and the antibacterial activity of the nano-micelles was demonstrated in vitro against both Gram-negative and Gram-positive drug resistant bacteria. In silico studies docking rhamnolipids to structural and non-structural proteins of SARS-CoV-2 was also performed. We demonstrated the efficient and specific interaction of rhamnolipids with the active sites of these proteins. Additionally, the computational studies suggested that rhamnolipids have membrane permeability activity. Thus, the obtained results indicate that SARS-CoV-2 could be another target of rhamnolipids and could find utility in the fight against COVID-19, a future perspective to be considered.
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Affiliation(s)
- Marwa Reda Bakkar
- Botany and Microbiology Department, Faculty of Science, Helwan University, Ain Helwan, Cairo 11795, Egypt; (M.R.B.); (A.H.I.F.)
| | - Ahmed Hassan Ibrahim Faraag
- Botany and Microbiology Department, Faculty of Science, Helwan University, Ain Helwan, Cairo 11795, Egypt; (M.R.B.); (A.H.I.F.)
- Bioinformatics Center, Faculty of Science, Helwan University, Ain Helwan, Cairo 11795, Egypt
| | - Elham R. S. Soliman
- Cytogenetics and Molecular Genetics Unit, Botany and Microbiology Department, Faculty of Science, Helwan University, Ain Helwan, Cairo 11795, Egypt;
| | - Manar S. Fouda
- Biochemistry and Chemistry Department, Faculty of Science, Helwan University, Ain Helwan, Cairo 11795, Egypt;
| | | | - Gary R. McLean
- Cellular and Molecular Immunology Research Centre, London Metropolitan University, 166-220 Holloway Road, London N7 8DB, UK;
- National Heart and Lung Institute, Imperial College London, Norfolk Place, London W2 1PG, UK
| | - Ali M. S. Hebishy
- Chemistry Department, Faculty of Science, Helwan University, Cairo 11795, Egypt;
| | - Gehad E. Elkhouly
- Department of Pharmaceutics, Faculty of Pharmacy, Helwan University, Cairo 11795, Egypt; (G.E.E.); (N.R.R.)
- Helwan Nanotechnology Center, Helwan University, Helwan, Cairo 11795, Egypt
| | - Nermeen R. Raya
- Department of Pharmaceutics, Faculty of Pharmacy, Helwan University, Cairo 11795, Egypt; (G.E.E.); (N.R.R.)
- Helwan Nanotechnology Center, Helwan University, Helwan, Cairo 11795, Egypt
| | - Yasmin Abo-zeid
- Department of Pharmaceutics, Faculty of Pharmacy, Helwan University, Cairo 11795, Egypt; (G.E.E.); (N.R.R.)
- Helwan Nanotechnology Center, Helwan University, Helwan, Cairo 11795, Egypt
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Nataraj BH, Ramesh C, Mallappa RH. Functional group characterization of lactic bacterial biosurfactants and evaluation of antagonistic actions against clinical isolates of methicillin-resistant Staphylococcus aureus. Lett Appl Microbiol 2021; 73:372-382. [PMID: 34133779 DOI: 10.1111/lam.13523] [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: 09/07/2020] [Revised: 05/11/2021] [Accepted: 05/12/2021] [Indexed: 11/26/2022]
Abstract
The present study investigated the antimicrobial and antibiofilm potential of biosurfactants derived from Lactobacillus fermentum Lf1, L. fermentum LbS4 and Lactobacillus plantarum A5 against clinical isolates of methicillin-resistant Staphylococcus aureus (MRSA). The cell wall-bound and intracellular biosurfactants were extracted by solvent extraction method. Fourier-transform infrared spectroscopy-based characterization of biosurfactants revealed the heterogeneous chemical composition involving proteins, fatty acids and carbohydrate moieties in LbS4 and A5, while only the sugar and lipid fractions in Lf1. Fatty acid profiling using Gas chromatography-mass spectrometry indicated hexadecanoic acid and stearic acid as the predominant fatty acids in the biosurfactants of all these strains. Biosurfactants demonstrated dose-dependent antibacterial action against MRSA isolates with the highest inhibition zone diameter (30·0 ± 0·0 to 35·0 ± 0·0 mm) recorded at 400 mg ml-1 . Biosurfactants showed an excellent staphylococcal antibiofilm activity by preventing the biofilm formation and disrupting the preformed biofilms. Visual inspection through scanning electron microscopy witnessed the biosurfactants-induced alteration in the cell membrane integrity and subsequent membrane pore formation on staphylococcal cells. Taken together, our findings emphasize the prospects of biomedical applications of biosurfactants as bactericidal and biofilm controlling agents to confront staphylococcal nosocomial infections.
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Affiliation(s)
- B H Nataraj
- Molecular Biology Unit, Dairy Microbiology Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - C Ramesh
- Molecular Biology Unit, Dairy Microbiology Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - R H Mallappa
- Molecular Biology Unit, Dairy Microbiology Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India
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Roy P, Bhat VS, Saha S, Sengupta D, Das S, Datta S, Hegde G. Mesoporous carbon nanospheres derived from agro-waste as novel antimicrobial agents against gram-negative bacteria. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:13552-13561. [PMID: 33185797 DOI: 10.1007/s11356-020-11587-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 11/06/2020] [Indexed: 06/11/2023]
Abstract
Porous carbon nanospheres were synthesized from agro-waste garlic peels by a one-pot facile and easy to scale-up pyrolysis method. Surface morphology and structural features of the nanospheres have been studied by field emission scanning electron microscopy, energy-dispersive spectroscopy, X-ray diffraction, and Raman spectroscopy. Fourier transform infrared spectroscopy (FTIR) and N2 adsorption desorption experiments were explored to detect surface functionality, surface area, and porosity. Average particle diameter of the synthesized nanospheres was 31 ± 6.3 nm and zeta potential of - 25.2 mV ± 1.75 mV. Nanoscale carbon was mesoporous in nature with type IV isotherms, mean pore diameter of 15.2 nm, and total pore volume of 0.032 cm3/g. Minimum inhibitory concentration and minimum bactericidal concentration values of carbon nanospheres against Escherichia coli are 480 ± 0.5 μg/ml and 495 ± 0.5 μg/ml, respectively. Synthesized nanospheres exhibited gram-selective antimicrobial action against Escherichia coli probably linked to membrane deformity due to interaction of nanocarbon with the bacterial membrane. Carbon nanospheres resulting from waste to wealth transformation emerged as promising candidates for antibacterial application. Graphical abstract.
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Affiliation(s)
- Partha Roy
- Department of Pharmaceutical Technology, Adamas University, Barasat - Barrackpore Road, 24 Parganas North, Jagannathpur, Kolkata, West Bengal, 700126, India
| | - Vinay S Bhat
- Centre for Nano-materials & Displays, B.M.S. College of Engineering, Basavangudi, Bangalore, 560019, India
| | - Sumana Saha
- Department of Pharmaceutical Technology, Adamas University, Barasat - Barrackpore Road, 24 Parganas North, Jagannathpur, Kolkata, West Bengal, 700126, India
| | - Dipanjan Sengupta
- Department of Chemical Technology, Rajabazar Science College Campus, University of Calcutta, 92, Acharya Prafulla Chandra Road, Rajabazar, Machuabazar, Kolkata, West Bengal, 700009, India
| | - Suvadra Das
- Basic Science and Humanities Department, University of Engineering and Management, Kolkata, University Area, Plot No. III-B/5, Newtown, Action Area III, Kolkata, West Bengal, 700156, India
| | - Sriparna Datta
- Department of Chemical Technology, Rajabazar Science College Campus, University of Calcutta, 92, Acharya Prafulla Chandra Road, Rajabazar, Machuabazar, Kolkata, West Bengal, 700009, India
| | - Gurumurthy Hegde
- Centre for Nano-materials & Displays, B.M.S. College of Engineering, Basavangudi, Bangalore, 560019, India.
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Meng Q, Sun Y, Cong H, Hu H, Xu FJ. An overview of chitosan and its application in infectious diseases. Drug Deliv Transl Res 2021; 11:1340-1351. [PMID: 33496926 PMCID: PMC7837079 DOI: 10.1007/s13346-021-00913-w] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/18/2021] [Indexed: 12/19/2022]
Abstract
Infectious diseases, such as the coronavirus disease-19, SARS virus, Ebola virus, and AIDS, threaten the health of human beings globally. New viruses, drug-resistant bacteria, and fungi continue to challenge the human efficacious drug bank. Researchers have developed a variety of new antiviral and antibacterial drugs in response to the infectious disease crisis. Meanwhile, the development of functional materials has also improved therapeutic outcomes. As a natural material, chitosan possesses good biocompatibility, bioactivity, and biosafety. It has been proven that the cooperation between chitosan and traditional medicine greatly improves the ability of anti-infection. This review summarized the application and design considerations of chitosan-composed systems for the treatment of infectious diseases, looking forward to providing the idea of infectious disease therapy.
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Affiliation(s)
- Qingye Meng
- Institute of Biomedical Materials and Engineering, College of Materials Science and Engineering, Qingdao University, Qingdao, 266071, China
| | - Ying Sun
- Institute of Biomedical Materials and Engineering, College of Materials Science and Engineering, Qingdao University, Qingdao, 266071, China
| | - Hailin Cong
- Institute of Biomedical Materials and Engineering, College of Materials Science and Engineering, Qingdao University, Qingdao, 266071, China
| | - Hao Hu
- Institute of Biomedical Materials and Engineering, College of Materials Science and Engineering, Qingdao University, Qingdao, 266071, China.
| | - Fu-Jian Xu
- Key Lab of Biomedical Materials of Natural Macromolecules, Ministry of Education, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, 100029, Beijing, China.
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Shen Y, Zou Y, Chen X, Li P, Rao Y, Yang X, Sun Y, Hu H. Antibacterial self-assembled nanodrugs composed of berberine derivatives and rhamnolipids against Helicobacter pylori. J Control Release 2020; 328:575-586. [PMID: 32946873 DOI: 10.1016/j.jconrel.2020.09.025] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 09/10/2020] [Accepted: 09/12/2020] [Indexed: 12/17/2022]
Abstract
The prevalence of infections with Helicobacter pylori (H. pylori) has progressively increased worldwide, which demonstrated to be closely correlated to its biofilm formation. H. pylori biofilms protect the bacteria by significantly decreasing their sensitivity to antibiotics. Moreover, H. pylori colonizes on the gastrointestinal tract epithelium which is covered by mucus layer, acting as another barrier to prevent antibacterial agents from reaching the colonization sites. Herein, we prepared four types of versatile self-assembled nanodrugs (BD/RHL NDs) containing lipophilic alkyl berberine derivatives (BDs) and rhamnolipids (RHL) to overcome the dual obstructions of both mucus layer and biofilms. Molecular dynamics simulations estimated that the driving forces for self-assembly of BD/RHL NDs were electrostatic and hydrophobic interactions. BD/RHL NDs, characterized by appropriate size, negative charge and enhanced hydrophilicity, successfully penetrated through mucus layer without interacting with mucins. In in vitro experiments, BD/RHL NDs exhibited substantial ability to eradicate H. pylori biofilms by destroying their extracellular polymeric substances (EPS) and killing planktonic H. pylori. Furthermore, BD/RHL NDs inhibited the adherence of H. pylori on both biotic and abiotic surfaces, therefore cut off the critical step of the biofilm re-formation which was associated with the recrudescence of infections. In an H. pylori-infected mice model, C10-BD/RHL NDs group showed 40 folds less remnant H. pylori and greater mucosal protection compared with the conventional clinical triple therapy. In conclusion, BD/RHL NDs could penetrate through mucus layer and effectively eradicate H. pylori biofilms in vitro and in vivo, providing a novel strategy for clinical treatment of biofilm-related infections.
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Affiliation(s)
- Yuanna Shen
- Lab of Pharmaceutics, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, PR China
| | - Yiqing Zou
- Lab of Pharmaceutics, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, PR China
| | - Xiaonan Chen
- Lab of Pharmaceutics, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, PR China
| | - Pengyu Li
- Lab of Pharmaceutics, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, PR China
| | - Yiqin Rao
- Lab of Pharmaceutics, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, PR China
| | - Xuan Yang
- Lab of Pharmaceutics, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, PR China
| | - Yingying Sun
- Lab of Pharmaceutics, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, PR China
| | - Haiyan Hu
- Lab of Pharmaceutics, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, PR China.
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Nazareth TC, Zanutto CP, Tripathi L, Juma A, Maass D, de Souza AAU, de Arruda Guelli Ulson de Souza SM, Banat IM. The use of low-cost brewery waste product for the production of surfactin as a natural microbial biocide. BIOTECHNOLOGY REPORTS 2020; 28:e00537. [PMID: 33145189 PMCID: PMC7591730 DOI: 10.1016/j.btre.2020.e00537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/29/2020] [Accepted: 10/07/2020] [Indexed: 11/17/2022]
Abstract
For the first time Bacillus subtilis was able to grow in a culture medium containing Brewery waste (Trub) and produced surfactin. Surfactin showed bactericidal effect against Pseudomonas aeruginosa. P. aeruginosa biofilm was inhibited (79.8%) when co-incubated with surfactin. Surfactin showed anti-adhesive activity on polystyrene surfaces. P. aeruginosa biofilm was disrupted (44.9%) when treated with surfactin (700 μg/mL).
Surfactin has potential as next generation antibiofilm agent to combat antimicrobial resistance against emerging pathogens. However, the widespread industrial applications of surfactin is hampered by its high production cost. In this work, surfactin was produced from Bacillus subtilis using a low-cost brewery waste as a carbon source. The strain produced 210.11 mg L−1 after 28 h. The antimicrobial activity was observed against all tested strains, achieving complete inhibition for Pseudomonas aeruginosa, at 500 μg mL−1. A growth log reduction of 3.91 was achieved for P. aeruginosa while, Staphylococcus aureus and Staphylococcus epidermidis showed between 1 and 2 log reductions. In the anti-biofilm assays against P. aeruginosa, the co-incubation, anti-adhesive and disruption showed inhibition, where the greatest inhibition was observed in the co-incubation assay (79.80%). This study provides evidence that surfactin produced from a low-cost substrate can be a promising biocide due to its antimicrobial and anti-biofilm abilities against pathogens.
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Giri SS, Kim HJ, Kim SG, Kim SW, Kwon J, Lee SB, Park SC. Immunomodulatory Role of Microbial Surfactants, with Special Emphasis on Fish. Int J Mol Sci 2020; 21:ijms21197004. [PMID: 32977579 PMCID: PMC7582933 DOI: 10.3390/ijms21197004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 09/19/2020] [Accepted: 09/21/2020] [Indexed: 12/30/2022] Open
Abstract
Microbial surfactants (biosurfactants) are a broad category of surface-active biomolecules with multifunctional properties. They self-assemble in aqueous solutions and are adsorbed on various interfaces, causing a decrease in surface tension, as well as interfacial tension, solubilization of hydrophobic compounds, and low critical micellization concentrations. Microbial biosurfactants have been investigated and applied in several fields, including bioremediation, biodegradation, food industry, and cosmetics. Biosurfactants also exhibit anti-microbial, anti-biofilm, anti-cancer, anti-inflammatory, wound healing, and immunomodulatory activities. Recently, it has been reported that biosurfactants can increase the immune responses and disease resistance of fish. Among various microbial surfactants, lipopeptides, glycolipids, and phospholipids are predominantly investigated. This review presents the various immunological activities of biosurfactants, mainly glycolipids and lipopeptides. The applications of biosurfactants in aquaculture, as well as their immunomodulatory activities, that make them novel therapeutic candidates have been also discussed in this review.
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Machado TS, Decesaro A, Cappellaro ÂC, Machado BS, van Schaik Reginato K, Reinehr CO, Thomé A, Colla LM. Effects of homemade biosurfactant from Bacillus methylotrophicus on bioremediation efficiency of a clay soil contaminated with diesel oil. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 201:110798. [PMID: 32526591 DOI: 10.1016/j.ecoenv.2020.110798] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 05/19/2020] [Accepted: 05/22/2020] [Indexed: 06/11/2023]
Abstract
Despite constant progress in the understanding of the mechanisms related to the effects of biosurfactants in the bioremediation processes of oily residues, the possibility of antagonist effects on microbial growth and the production in situ of these compounds must be elucidated. The aims of this work were a) to evaluate the effects of the addition of a homemade biosurfactant of Bacillus methylotrophicus on the microbial count in soil in order to determine the possibility of inhibitory effects, and b) to accomplish biostimulation using media prepared with whey and bioaugmentation with B. methylotrophicus, analyzing the effects on the bioremediation of diesel oil and evidencing the in situ production of biosurfactants through effects on surface tension. The homemade bacterial biosurfactant did not present inhibitory effects acting as a biostimulant until 4000 mg biosurfactant/kg of soil. The biostimulation and bioaugmentation presented similar better results (p > 0.05) with the degradation of oil (~60%) than natural attenuation due to the low quantities of biostimulants added. For bioaugmentated and biostimulated soils, a decrease of surface tension between 30 and 60 days was observed, indicating the production of tensoactives in the soil, which was not observed in natural attenuation or a control treatment.
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Affiliation(s)
- Thaís Strieder Machado
- Graduate Program in Civil and Environmental Engineering, Faculty of Engineering and Architecture, University of Passo Fundo, BR 285, Passo Fundo, RS, Brazil.
| | - Andressa Decesaro
- Graduate Program in Civil and Environmental Engineering, Faculty of Engineering and Architecture, University of Passo Fundo, BR 285, Passo Fundo, RS, Brazil.
| | - Ângela Carolina Cappellaro
- Undergraduate Program in Environmental Engineering, Faculty of Engineering and Architecture, University of Passo Fundo, BR 285, Passo Fundo, RS, Brazil.
| | - Bruna Strieder Machado
- Undergraduate Program in Chemical Engineering, Faculty of Engineering and Architecture, University of Passo Fundo, BR 285, Passo Fundo, RS, Brazil.
| | - Kimberly van Schaik Reginato
- Undergraduate Program in Environmental Engineering, Faculty of Engineering and Architecture, University of Passo Fundo, BR 285, Passo Fundo, RS, Brazil.
| | - Christian Oliveira Reinehr
- Graduate Program in Food Science and Technology, Faculty of Engineering and Architecture, University of Passo Fundo, BR 285, Passo Fundo, RS, Brazil.
| | - Antônio Thomé
- Graduate Program in Civil and Environmental Engineering, Faculty of Engineering and Architecture, University of Passo Fundo, BR 285, Passo Fundo, RS, Brazil.
| | - Luciane Maria Colla
- Graduate Program in Civil and Environmental Engineering, Faculty of Engineering and Architecture, University of Passo Fundo, BR 285, Passo Fundo, RS, Brazil.
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Niaz T, Shabbir S, Noor T, Abbasi R, Imran M. Alginate-caseinate based pH-responsive nano-coacervates to combat resistant bacterial biofilms in oral cavity. Int J Biol Macromol 2020; 156:1366-1380. [DOI: 10.1016/j.ijbiomac.2019.11.177] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 11/19/2019] [Accepted: 11/20/2019] [Indexed: 01/09/2023]
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Gaur VK, Tripathi V, Gupta P, Dhiman N, Regar RK, Gautam K, Srivastava JK, Patnaik S, Patel DK, Manickam N. Rhamnolipids from Planococcus spp. and their mechanism of action against pathogenic bacteria. BIORESOURCE TECHNOLOGY 2020; 307:123206. [PMID: 32240926 DOI: 10.1016/j.biortech.2020.123206] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 03/12/2020] [Accepted: 03/14/2020] [Indexed: 06/11/2023]
Abstract
Two bacterial species with the ability to produce biosurfactants were isolated from a pesticide contaminated soil and identified as Planococcus rifietoensis IITR53 and Planococcus halotolerans IITR55. Formation of froth indicating the surfactant production was observed when grown in basal salt medium containing 2% glucose. The culture supernatant after 72 h showed reduction in surface tension from 72 N/m to 46 and 42 N/m for strain IITR53 and IITR55 with emulsification index of 51 and 54% respectively. The biosurfactant identified as rhamnolipid based on liquid chromatography-mass spectrometry analysis, was found to inhibit the growth of both gram- positive and negative pathogenic bacteria. Both the rhamnolipids at 40 mg/mL exhibited the release of extracellular DNA and protein content. Also at one third of the MIC, a significant generation of reactive oxygen species was recorded. These rhamnolipids effectively emulsified different vegetable oils suggesting their possible utilization as antimicrobial agent.
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Affiliation(s)
- Vivek Kumar Gaur
- Environmental Biotechnology Laboratory, Environmental Toxicology Group, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31 Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India; Amity Institute of Biotechnology, Amity University Uttar Pradesh, Lucknow Campus, Lucknow, India
| | - Varsha Tripathi
- Environmental Biotechnology Laboratory, Environmental Toxicology Group, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31 Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, India
| | - Pallavi Gupta
- Environmental Biotechnology Laboratory, Environmental Toxicology Group, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31 Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India
| | - Nitesh Dhiman
- Water Analysis Laboratory, Nanomaterial Toxicology Group, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31 Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, India
| | - Raj Kumar Regar
- Environmental Biotechnology Laboratory, Environmental Toxicology Group, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31 Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India
| | - Krishna Gautam
- Ecototoxicology Laboratotory, Regulatory Toxicology Group, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31 Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, India
| | | | - Satyakam Patnaik
- Water Analysis Laboratory, Nanomaterial Toxicology Group, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31 Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India
| | - Devendra Kumar Patel
- Analytical Chemistry Laboratory, Regulatory Toxicology Group, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31 Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India
| | - Natesan Manickam
- Environmental Biotechnology Laboratory, Environmental Toxicology Group, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31 Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India.
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Khan MS, Gao J, Zhang M, Chen X, Moe TS, Du Y, Yang F, Xue J, Zhang X. Isolation and characterization of plant growth-promoting endophytic bacteria Bacillus stratosphericus LW-03 from Lilium wardii. 3 Biotech 2020; 10:305. [PMID: 32612899 PMCID: PMC7313711 DOI: 10.1007/s13205-020-02294-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 06/07/2020] [Indexed: 02/01/2023] Open
Abstract
In the present study, a new strain of Bacillus stratosphericus LW-03 was isolated from the bulbs of Lilium wardii. The isolated endophytic strain LW-03 exhibited excellent antifungal activity against common plant pathogens, such as Fusarium oxysporum, Botryosphaeria dothidea, Botrytis cinerea, and Fusarium fujikuroi. The growth inhibition percentage of Botryosphaeria dothidea was 74.56 ± 2.35%, which was the highest, followed by Botrytis cinerea, Fusarium fujikuroi, and Fusarium oxysporum were 71.91 ± 2.87%, 69.54 ± 2.73%, and 65.13 ± 1.91%, respectively. The ethyl acetate fraction revealed a number of bioactive compounds and several of which were putatively identified as antimicrobial agents, such as 4-hydroxy-2-nonenylquinoline N-oxide, sphingosine ceramides like cer(d18:0/16:0(2OH)), cer(d18:0/16:0), and cer(d18:1/0:0), di-peptides, tri-peptide, cyclopeptides [cyclo(D-Trp-L-Pro)], [cyclo (Pro-Phe)], dehydroabietylamine, oxazepam, 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine like compound (PC(0:0/20:4), phosphatidylethanolamine (PE(18:1/0:0)), 3-Hydroxyoctadecanoic acid, 7.alpha.,27-Dihydroxycholesterol, N-Acetyl-d-mannosamine, p-Hydroxyphenyllactic acid, Phytomonic acid, and 2-undecenyl-quinoloin-4 (1H). The LW-03 strain exhibits multiple plant growth-promoting traits, including the production of organic acids, ACC deaminase, indole-3-acetic acid (IAA), siderophores, and nitrogen fixation activity. The beneficial effects of the endophytic strain LW-03 on the growth of two lily varieties were further evaluated under greenhouse conditions. Our results revealed plant growth-promoting activity in inoculated plants relative to non-inoculated control plants. The broad-spectrum antifungal activity and multiple plant growth-promoting properties of Bacillus stratosphericus LW-03 make it an important player in the development of biological fertilizers and sustainable agricultural biological control strategies.
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Affiliation(s)
- Mohammad Sayyar Khan
- Beijing Agro-Biotechnology Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097 China
- Genomics and Bioinformatics Division, Institute of Biotechnology and Genetic Engineering (IBGE), The University of Agriculture, Khyber Pakhtunkhwa, Peshawar, 25000 Pakistan
| | - Junlian Gao
- Beijing Agro-Biotechnology Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097 China
| | - Mingfang Zhang
- Beijing Agro-Biotechnology Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097 China
| | - Xuqing Chen
- Beijing Agro-Biotechnology Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097 China
| | - The Su Moe
- Beijing Agro-Biotechnology Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097 China
- Pharmaceutical Research Laboratory, Biotechnology Research Department, Ministry of Education, Mandalay Division, Kyaukse, 05151 Myanmar
| | - Yunpeng Du
- Beijing Agro-Biotechnology Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097 China
| | - Fengping Yang
- Beijing Agro-Biotechnology Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097 China
| | - Jing Xue
- Beijing Agro-Biotechnology Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097 China
| | - Xiuhai Zhang
- Beijing Agro-Biotechnology Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097 China
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Scolari IR, Páez PL, Musri MM, Petiti JP, Torres A, Granero GE. Rifampicin loaded in alginate/chitosan nanoparticles as a promising pulmonary carrier against Staphylococcus aureus. Drug Deliv Transl Res 2020; 10:1403-1417. [PMID: 32363536 DOI: 10.1007/s13346-019-00705-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
This study aims to explore the antimicrobial activity of rifampicin (RIF) and ascorbic acid (ASC) co-loaded into alginate (ALG)/chitosan (CS) nanoparticles (RIF/ASC NPs) and tested for their antibacterial activity against several strains of methicillin-sensitive Staphylococcus aureus (MSSA) and methicillin-resistant Staphylococcus aureus (MRSA). Also, the present research focused on exploring the possible antibacterial mechanism of action of these RIF/ASC NPs, which demonstrated a significant biocide activity against the S. aureus strains with minimum inhibitory concentrations (MIC) between 2- and 8-fold lower than those one exhibited with the free antibiotic RIF. The proposed antimicrobial mechanism of action of the RIF/ASC NPs seems to be the result of collaborative effects between NPs and the RIF/ASC antibiotic combination. Moreover, results indicated that the functionalized RIF/ASC NP surface played a crucial role on the processes of NP adhesion into the bacterial surface, the alterations on the cell membrane integrity, and the cell uptake of the RIF/ASC antibiotic into bacteria. Further, the in vivo lung deposition pattern of empty NPs labeled (NPs-FITC) with isothiocyanate fluorescein in rats was investigated post intratracheal instillation of NPs. In summary, findings from this work show that our novel designed engineered RIF/ASC co-loaded NPs could be a suitable system for antibiotic lung administration with promising perspectives for effective treatments of pulmonary intracellular infections for those known antibiotics that are losing effectiveness due to antimicrobial resistance problems. Graphical Abstract.
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Affiliation(s)
- I R Scolari
- Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA - CONICET) and Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, X5000HUA, Córdoba, Argentina
| | - P L Páez
- Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA - CONICET) and Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, X5000HUA, Córdoba, Argentina
| | - M M Musri
- Instituto de Investigación Médica Mercedes y Martín Ferreyra, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de Córdoba (INIMEC-CONICET-UNC), Córdoba, Argentina.,Facultad de Ciencias Exactas Físicas y Naturales, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - J P Petiti
- INICSA, CONICET Centro de Microscopía Electrónica, Universidad Nacional de Córdoba, X5000HUA, Córdoba, Argentina
| | - A Torres
- INICSA, CONICET Centro de Microscopía Electrónica, Universidad Nacional de Córdoba, X5000HUA, Córdoba, Argentina
| | - G E Granero
- Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA - CONICET) and Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, X5000HUA, Córdoba, Argentina.
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Sengupta D, Datta S, Biswas D. Surfactant exopolysaccharide of Ochrobactrum pseudintermedium C1 has antibacterial potential: Its bio-medical applications in vitro. Microbiol Res 2020; 236:126466. [PMID: 32193126 DOI: 10.1016/j.micres.2020.126466] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 03/02/2020] [Accepted: 03/09/2020] [Indexed: 01/09/2023]
Abstract
Since the advent of biologics in human welfare various bio-molecules have been explored. Different bacterial exopolysaccharides have proved their worth in many industrial and commercial applications. In this perspective, while exploring a surfactant exopolysaccharide of Ochrobactrum pseudintermedium C1, it is strikingly observed that it possesses a potent antibacterial property which encourages its bio-medical applications. Following isolation and purification of the said exopolysaccharide, its structural configuration and functional attributes are studied by several analytical procedures involving FTIR, 13C- NMR, CHN-analysis, estimation of zeta potential, XRD-study and digital tensiometry. When treated with pathological samples in vitro, it distinctly elicits its antibacterial property by exhibiting a characteristic zone of inhibition. Combined with a standard antibiotic (like ciprofloxacin), it enhances the action of antibiotic also. Mechanism of its antibacterial action is evaluated by crystal violet entrapment assay with UV-vis spectrophotometry, bacterial cell viability assay by trypan blue staining and SEM study. Results show that its basic surfactant property, anionic character, crystalline nature and scaffolding architecture are supposed to facilitate its antibacterial property which is manifested by its capability of disrupting bacterial cell envelope causing eventual cell death. In the current global scenario, an increasing threat of antibiotic resistance is prevailing due to their indiscriminate use. If used as an adjuvant with a judicious dose of antibiotic, this bio-molecule might play a significant role in bio-medicine to combat such threat.
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Affiliation(s)
- Dipanjan Sengupta
- Department of Chemical Technology, Rajabazar Science College, University of Calcutta, Kolkata, India
| | - Sriparna Datta
- Department of Chemical Technology, Rajabazar Science College, University of Calcutta, Kolkata, India.
| | - Dipa Biswas
- Department of Chemical Technology, Rajabazar Science College, University of Calcutta, Kolkata, India
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42
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Huang Z, Lin Y, Ren F, Song S, Guo H. Benzalkonium bromide is effective in removing Bacillus cereus biofilm on stainless steel when combined with cleaning-in-place. Food Control 2019. [DOI: 10.1016/j.foodcont.2019.05.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Zhao J, Zhao G, Liu Y. Antibacterial activity of a hexahydro‐β‐acids/methyl‐β‐cyclodextrin inclusion complex against bacteria related to foodborne illness. J Food Saf 2019. [DOI: 10.1111/jfs.12678] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jiuyang Zhao
- Key Laboratory of Coal Cleaning Conversion and Chemical Engineering Process, Xinjiang Uyghur Autonomous RegionCollege of Chemistry and Chemical Engineering, Xinjiang University Urumqi China
| | - Guanyu Zhao
- Key Laboratory of Coal Cleaning Conversion and Chemical Engineering Process, Xinjiang Uyghur Autonomous RegionCollege of Chemistry and Chemical Engineering, Xinjiang University Urumqi China
| | - Yumei Liu
- Key Laboratory of Coal Cleaning Conversion and Chemical Engineering Process, Xinjiang Uyghur Autonomous RegionCollege of Chemistry and Chemical Engineering, Xinjiang University Urumqi China
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Shen Y, Li P, Chen X, Zou Y, Li H, Yuan G, Hu H. Activity of Sodium Lauryl Sulfate, Rhamnolipids, and N-Acetylcysteine Against Biofilms of Five Common Pathogens. Microb Drug Resist 2019; 26:290-299. [PMID: 31211651 DOI: 10.1089/mdr.2018.0385] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Bacteria in biofilms are more resistant to antibacterial agents than bacteria in planktonic form. Hence, antibacterial agents should be able to eradicate biofilms to ensure the best outcomes. Little is known about how well many antibacterial agents can disrupt biofilms. In this study, we compared sodium lauryl sulfate (SDS), rhamnolipids (RHL), and N-acetylcysteine (NAC) for their ability to eradicate mature biofilms and inhibit new biofilm formation against Helicobacter pylori, Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, and Streptococcus mutans. SDS and RHL effectively inhibited formation of five bacterial biofilms in a dose-dependent manner, even at concentrations below the minimal inhibitory concentrations (MICs), suggesting that their antibiofilm activities are unrelated to their antibacterial activities. In contrast, NAC at certain concentrations promoted biofilm formation by all bacteria except P. aeruginosa, whereas at supra-MIC concentrations, it inhibited biofilm formation against the four bacteria, suggesting that its antibiofilm activity depends on its antibacterial activity. NAC was ineffective at eradicating mature H. pylori biofilms, and it actually promoted their formation at concentrations >10 mg/mL. Our results suggest that RHL is superior at eradicating biofilms of H. pylori, E. coli, and S. mutans; SDS is more effective against S. aureus biofilms; and NAC is more effective against P. aeruginosa biofilms. Our results may help determine which antibiofilm agents are effective against certain bacterial strains and develop agents effective against specific bacterial threats.
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Affiliation(s)
- Yuanna Shen
- Lab of Pharmaceutics, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Pengyu Li
- Lab of Pharmaceutics, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Xiaonan Chen
- Lab of Pharmaceutics, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Yiqing Zou
- Lab of Pharmaceutics, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Huatian Li
- Lab of Pharmaceutics, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Gang Yuan
- Department of Gastroenterology, the First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Haiyan Hu
- Lab of Pharmaceutics, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, People's Republic of China
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Nitrofurantoin-Microbial Degradation and Interactions with Environmental Bacterial Strains. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16091526. [PMID: 31052168 PMCID: PMC6539117 DOI: 10.3390/ijerph16091526] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 04/16/2019] [Accepted: 04/26/2019] [Indexed: 02/07/2023]
Abstract
The continuous exposure of living organisms and microorganisms to antibiotics that have increasingly been found in various environmental compartments may be perilous. One group of antibacterial agents that have an environmental impact that has been very scarcely studied is nitrofuran derivatives. Their representative is nitrofurantoin (NFT)-a synthetic, broad-spectrum antibiotic that is often overdosed. The main aims of the study were to: (a) isolate and characterize new microbial strains that are able to grow in the presence of NFT, (b) investigate the ability of isolates to decompose NFT, and (c) study the impact of NFT on microbial cell properties. As a result, five microbial species were isolated. A 24-h contact of bacteria with NFT provoked modifications in microbial cell properties. The greatest differences were observed in Sphingobacterium thalpophilum P3d, in which a decrease in both total and inner membrane permeability (from 86.7% to 48.3% and from 0.49 to 0.42 µM min-1) as well as an increase in cell surface hydrophobicity (from 28.3% to 39.7%) were observed. Nitrofurantoin removal by selected microbial cultures ranged from 50% to 90% in 28 days, depending on the bacterial strain. Although the isolates were able to decompose the pharmaceutical, its presence significantly affected the bacterial cells. Hence, the environmental impact of NFT should be investigated to a greater extent.
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Naughton PJ, Marchant R, Naughton V, Banat IM. Microbial biosurfactants: current trends and applications in agricultural and biomedical industries. J Appl Microbiol 2019; 127:12-28. [PMID: 30828919 DOI: 10.1111/jam.14243] [Citation(s) in RCA: 140] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 02/18/2019] [Accepted: 02/24/2019] [Indexed: 12/12/2022]
Abstract
Synthetic surfactants are becoming increasingly unpopular in many applications due to previously disregarded effects on biological systems and this has led to a new focus on replacing such products with biosurfactants that are biodegradable and produced from renewal resources. Microbially derived biosurfactants have been investigated in numerous studies in areas including: increasing feed digestibility in an agricultural context, improving seed protection and fertility, plant pathogen control, antimicrobial activity, antibiofilm activity, wound healing and dermatological care, improved oral cavity care, drug delivery systems and anticancer treatments. The development of the potential of biosurfactants has been hindered somewhat by the myriad of approaches taken in their investigations, the focus on pathogens as source species and the costs associated with large-scale production. Here, we focus on various microbial sources of biosurfactants and the current trends in terms of agricultural and biomedical applications.
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Affiliation(s)
- P J Naughton
- The Nutrition Innovation Centre for Food and Health (NICHE), School of Biomedical Sciences, Ulster University, Coleraine, County Londonderry, UK
| | - R Marchant
- The Nutrition Innovation Centre for Food and Health (NICHE), School of Biomedical Sciences, Ulster University, Coleraine, County Londonderry, UK
| | - V Naughton
- The Nutrition Innovation Centre for Food and Health (NICHE), School of Biomedical Sciences, Ulster University, Coleraine, County Londonderry, UK
| | - I M Banat
- The Nutrition Innovation Centre for Food and Health (NICHE), School of Biomedical Sciences, Ulster University, Coleraine, County Londonderry, UK
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de Freitas Ferreira J, Vieira EA, Nitschke M. The antibacterial activity of rhamnolipid biosurfactant is pH dependent. Food Res Int 2019; 116:737-744. [DOI: 10.1016/j.foodres.2018.09.005] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 08/21/2018] [Accepted: 09/05/2018] [Indexed: 10/28/2022]
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49
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Excision wound healing activity of a common biosurfactant produced by Pseudomonas sp. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.wndm.2018.09.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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50
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Lim Y, Su CH, Liao YC, Lee SY. Impedimetric analysis on the mass transfer properties of intact and competent E. coli cells. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2018; 1861:9-16. [PMID: 30341999 DOI: 10.1016/j.bbamem.2018.10.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2017] [Revised: 10/10/2018] [Accepted: 10/15/2018] [Indexed: 12/31/2022]
Abstract
Competent Escherichia coli cells are commonly used in bacterial transformation owing to its high permeability for bioorganic macromolecules like plasmid DNA. However, the mass transfer property of competent E. coli cell has not fully investigated. In the present study, mass transfer coefficients of competent and intact E. coli cells in deionized water were evaluated by impedimetric analysis of the release of cytoplasmic compounds. Because competent cells have a higher permeability after chemical treatment, the lumped mass transfer coefficient of a competent cell was approximately 6.5 times larger than that of an intact cell at room temperature. Release of cytoplasmic components was accelerated at an elevated temperature of 42 °C, which is the heat shock temperature used during bacterial transformation. At this elevated temperature, assessed lumped mass transfer coefficients of intact and competent E. coli cells were 9.28 × 10-4 min-1 and 97.10 × 10-4 min-1, respectively. Significant increase in the mass transfer coefficient of the competent cell is caused by cytolysis of cells. The double layer capacitances were also assessed from the electrochemical spectra confirming the enhanced ion release from E. coli cells and rupture of the competent cell under prolonged exposure at the elevated temperature. Impedimetric detection of the ion release with analyses using an equivalent circuit model provides a method to evaluate mass transfer properties of biomolecules.
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Affiliation(s)
- Youngjoon Lim
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Chun-Hao Su
- Department of Chemical Engineering, National Taiwan University, No.1 Sec. 4 Roosevelt Road, Taipei 10617, Taiwan
| | - Ying-Chih Liao
- Department of Chemical Engineering, National Taiwan University, No.1 Sec. 4 Roosevelt Road, Taipei 10617, Taiwan.
| | - Sang-Yup Lee
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea.
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