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Kumar G, Engle K. Natural products acting against S. aureus through membrane and cell wall disruption. Nat Prod Rep 2023; 40:1608-1646. [PMID: 37326041 DOI: 10.1039/d2np00084a] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Covering: 2015 to 2022Staphylococcus aureus (S. aureus) is responsible for several community and hospital-acquired infections with life-threatening complications such as bacteraemia, endocarditis, meningitis, liver abscess, and spinal cord epidural abscess. In recent decades, the abuse and misuse of antibiotics in humans, animals, plants, and fungi and the treatment of nonmicrobial diseases have led to the rapid emergence of multidrug-resistant pathogens. The bacterial wall is a complex structure consisting of the cell membrane, peptidoglycan cell wall, and various associated polymers. The enzymes involved in bacterial cell wall synthesis are established antibiotic targets and continue to be a central focus for antibiotic development. Natural products play a vital role in drug discovery and development. Importantly, natural products provide a starting point for active/lead compounds that sometimes need modification based on structural and biological properties to meet the drug criteria. Notably, microorganisms and plant metabolites have contributed as antibiotics for noninfectious diseases. In this study, we have summarized the recent advances in understanding the activity of the drugs or agents of natural origin that directly inhibit the bacterial membrane, membrane components, and membrane biosynthetic enzymes by targeting membrane-embedded proteins. We also discussed the unique aspects of the active mechanisms of established antibiotics or new agents.
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Affiliation(s)
- Gautam Kumar
- Department of Natural Products, Chemical Sciences, National Institute of Pharmaceutical Education and Research-Hyderabad, Hyderabad, Balanagar, 500037, India.
| | - Kritika Engle
- Department of Natural Products, Chemical Sciences, National Institute of Pharmaceutical Education and Research-Hyderabad, Hyderabad, Balanagar, 500037, India.
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Abdel-Shafi S, El-Nemr M, Enan G, Osman A, Sitohy B, Sitohy M. Isolation and Characterization of Antibacterial Conglutinins from Lupine Seeds. MOLECULES (BASEL, SWITZERLAND) 2022; 28:molecules28010035. [PMID: 36615230 PMCID: PMC9822312 DOI: 10.3390/molecules28010035] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 12/16/2022] [Accepted: 12/18/2022] [Indexed: 12/24/2022]
Abstract
The main target of this work is to discover new protein fractions from natural resources with high antibacterial action. The 7S and 11S globulin fractions, as well as the basic subunit (BS), were isolated from lupine seeds (Lupinus termis), chemically characterized, and screened for antibacterial activity against seven pathogenic bacteria. SDS-PAGE revealed molecular weights ranging from 55 to 75 kDa for 7S globulin, 20-37 kD for 11S globulin, and 20 kD for the BS. 11S globulin and the BS migrated faster on Urea-PAGE toward the cathode compared to 7S globulin. FTIR and NMR showed different spectral patterns between the 7S and 11S globulins but similar ones between 11S globulin and the BS. The MICs of the BS were in the range of 0.05-2 μg/mL against Listeria monocytogenes, Klebsiella oxytoca, Proteus mirabilis, Staphylococcus aureus, Listeria ivanovii, Salmonella typhimurium, and Pseudomonas aeruginosa compared to higher values for 11S globulin. The BS surpassed 11S globulin in antibacterial action, while 7S globulin showed no effect. The MICs of 11S globulin and the BS represented only 5% and 2.5% of the specific antibiotic against L. monocytogenes, respectively. Scanning electron microscopy (SEM) demonstrated different signs of cellular deformation and decay in the protein-treated bacteria, probably due to interaction with the bacterial cell wall and membranes. 11S globulin and the BS can be nominated as effective food biopreservatives.
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Affiliation(s)
- Seham Abdel-Shafi
- Botany and Microbiology Department, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
| | - Mona El-Nemr
- Botany and Microbiology Department, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
| | - Gamal Enan
- Botany and Microbiology Department, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
| | - Ali Osman
- Biochemistry Department, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
| | - Basel Sitohy
- Department of Clinical Microbiology, Infection and Immunology, Umeå University, SE-90185 Umeå, Sweden
- Department of Radiation Sciences, Oncology, Umeå University, SE-90185 Umeå, Sweden
- Correspondence: (B.S.); or (M.S.); Tel.: +20-1065272667 (M.S.)
| | - Mahmoud Sitohy
- Biochemistry Department, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
- Correspondence: (B.S.); or (M.S.); Tel.: +20-1065272667 (M.S.)
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NISIN and gilaburu (Viburnum opulus L.) combination is a cost-effective way to control foodborne Staphylococcus aureus. Food Control 2022. [DOI: 10.1016/j.foodcont.2022.109213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Cao W, Yue L, Zhang Y, Wang Z. Photodynamic chitosan functionalized MoS 2 nanocomposite with enhanced and broad-spectrum antibacterial activity. Carbohydr Polym 2022; 277:118808. [PMID: 34893226 DOI: 10.1016/j.carbpol.2021.118808] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 09/30/2021] [Accepted: 10/21/2021] [Indexed: 12/29/2022]
Abstract
Bacterial infection accompanied by antibiotic resistance leads to the lack of effective antibacterial agents, which has become an imminent problem afflicting people. Therefore, development of highly effective and broad-spectrum disinfecting alternatives to tackle this challenge is of great necessity. In view of the different cell wall structures of bacteria, we designed photodynamic antibacterial system based on chlorin e6 (Ce6) loaded chitosan functionalized molybdenum sulfide (MoS2) nanocomposites (M-CS-Ce6). The nanocomposite can not only allow Ce6 to enter the cells of Gram-positive bacteria, but also destroy the cell wall permeability of Gram-negative bacteria and enhance the photo-antibacterial effect. 10 μg/mL of M-CS-Ce6 irradiated by 660 nm laser for 5 min, completely killed the target pathogens, exhibiting significantly enhanced photo-antibacterial performance against both Gram-positive and Gram-negative bacteria. Compared with other cationic photodynamic composites, M-CS-Ce6 had stronger and broad-spectrum photo-antibacterial effect. Taken together, M-CS-Ce6 could be a promising and safe broad-spectrum antibacterial agent.
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Affiliation(s)
- Wenbo Cao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China
| | - Lin Yue
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China.
| | - Yin Zhang
- Key Laboratory of Meat Processing of Sichuan, Chengdu University, Chengdu 610106, PR China
| | - Zhouping Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China; Key Laboratory of Meat Processing of Sichuan, Chengdu University, Chengdu 610106, PR China; Collaborative Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi 214122, PR China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, P. R. China.
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Wang ST, Ning HQ, Feng LH, Wang YY, Li YQ, Mo HZ. Oxidative phosphorylation system as the target of glycinin basic peptide against Aspergillus niger. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111977] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Ning H, Wang S, Li Y, Sun G, He J. The cell structure damage and embden-meyerhof-parnas pathway inhibition of Listeria monocytogenes induced by glycinin basic peptide. Microb Pathog 2020; 152:104635. [PMID: 33232764 DOI: 10.1016/j.micpath.2020.104635] [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: 05/14/2020] [Revised: 11/16/2020] [Accepted: 11/17/2020] [Indexed: 10/22/2022]
Abstract
Glycinin basic peptide (GBP) is a natural antibacterial peptide. This study aimed to explore the antibacterial characteristics of GBP against Listeria monocytogenes (L. monocytogenes) by measuring the membrane potential, membrane permeability, cell damage, morphological changes, respiration metabolism inhibition and DNA content. GBP increased the surface zeta potential and decreased the trans-membrane potential of L. monocytogenes in a dose-dependent manner. Compared with the control, the electrical conductivities of GBP-treated bacterial suspensions were significantly increased. The percentages of bacteria with damaged membrane increased from 6.40% to 70.90% with GBP from 0 to 0.8 mg/mL. Obvious rupture and deform of bacterial cells with GBP were observed by transmission electron microscope (TEM), showing the destructive effect of GBP on L. monocytogenes. GBP also inhibited the embden-meyerhof-parnas pathway of the bacterial respiration metabolism and reduced the activities of its key regulator enzymes. Besides, the content of DNA in GBP-treated L. monocytogenes was lower than that in control.
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Affiliation(s)
- Houqi Ning
- School of Food Science & Engineering, Qilu University of Technology (Shandong Academy of Sciences), No. 3501 University Road of Changqing District, 250353, Jinan, Shandong Province, China
| | - Shuangtong Wang
- School of Food Science & Engineering, Qilu University of Technology (Shandong Academy of Sciences), No. 3501 University Road of Changqing District, 250353, Jinan, Shandong Province, China
| | - Yingqiu Li
- School of Food Science & Engineering, Qilu University of Technology (Shandong Academy of Sciences), No. 3501 University Road of Changqing District, 250353, Jinan, Shandong Province, China.
| | - Guijin Sun
- School of Food Science & Engineering, Qilu University of Technology (Shandong Academy of Sciences), No. 3501 University Road of Changqing District, 250353, Jinan, Shandong Province, China
| | - Jinxing He
- School of Food Science & Engineering, Qilu University of Technology (Shandong Academy of Sciences), No. 3501 University Road of Changqing District, 250353, Jinan, Shandong Province, China
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Rahman M, Browne JJ, Van Crugten J, Hasan MF, Liu L, Barkla BJ. In Silico, Molecular Docking and In Vitro Antimicrobial Activity of the Major Rapeseed Seed Storage Proteins. Front Pharmacol 2020; 11:1340. [PMID: 33013372 PMCID: PMC7508056 DOI: 10.3389/fphar.2020.01340] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 08/11/2020] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND In addition to their use as an edible oil and condiment crop, mustard and rapeseed (Brassica napus L., B. juncea (L.) Czern., B. nigra (L.) W.D.J.Koch, B. rapa L. and Sinapis alba L.) have been commonly used in traditional medicine for relieving pain, coughs and treating infections. The seeds contain high amounts of oil, while the remaining by-product meal after oil extraction, about 40% of seed dry weight, has a low value despite its high protein-content (~85%). The seed storage proteins (SSP) 2S albumin-type napin and 12S globulin-type cruciferin are the two predominant proteins in the seeds and show potential for value adding to the waste stream; however, information on their biological activities is scarce. In this study, purified napin and cruciferin were tested using in silico, molecular docking, and in vitro approaches for their bioactivity as antimicrobial peptides. MATERIALS AND METHODS The 3D-structure of 2S albumin and 12S globulin storage proteins from B. napus were investigated to predict antimicrobial activity employing an antimicrobial peptide database survey. To gain deeper insights into the potential antimicrobial activity of these SSP, in silico molecular docking was performed. The purified B. napus cruciferin and napin were then tested against both Gram-positive and Gram-negative bacteria for in vitro antimicrobial activity by disc diffusion and microdilution antimicrobial susceptibility testing. RESULTS In silico analysis demonstrated both SSP share similar 3D-structure with other well studied antimicrobial proteins. Molecular docking revealed that the proteins exhibited high binding energy to bacterial enzymes. Cruciferin and napin proteins appeared as a double triplet and a single doublet, respectively, following SDS-PAGE. SDS-PAGE and Western blotting also confirmed the purity of the protein samples used for assessment of antimicrobial activity. Antimicrobial susceptibility testing provided strong evidence for antimicrobial activity for the purified napin protein; however, cruciferin showed no antimicrobial activity, even at the highest dose applied. DISCUSSION In silico and molecular docking results presented evidence for the potential antimicrobial activity of rapeseed cruciferin and napin SSP. However, only the in vitro antimicrobial activity of napin was confirmed. These findings warrant further investigation of this SSP protein as a potential new agent against infectious disease.
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Affiliation(s)
- Mahmudur Rahman
- Southern Cross Plant Science, Southern Cross University, Lismore, NSW, Australia
| | - Jessica J. Browne
- School of Health and Human Sciences, Southern Cross University, Bilinga, QLD, Australia
| | - Jacoba Van Crugten
- School of Health and Human Sciences, Southern Cross University, Bilinga, QLD, Australia
| | | | - Lei Liu
- Southern Cross Plant Science, Southern Cross University, Lismore, NSW, Australia
| | - Bronwyn J. Barkla
- Southern Cross Plant Science, Southern Cross University, Lismore, NSW, Australia
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Chen J, Lü Z, An Z, Ji P, Liu X. Antibacterial Activities of Sophorolipids and Nisin and Their Combination against Foodborne Pathogen
Staphylococcus aureus. EUR J LIPID SCI TECH 2019. [DOI: 10.1002/ejlt.201900333] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Jing Chen
- State Key Laboratory of Biobased Material and Green Papermaking, Shandong Provincial Key Lab of Microbial Engineering, Department of Bioengineering, Qilu University of Technology Shandong Academy of Sciences Jinan 250353 China
- Department of Plant Pathology University of Georgia Tifton GA 31794 USA
| | - Zhifei Lü
- State Key Laboratory of Biobased Material and Green Papermaking, Shandong Provincial Key Lab of Microbial Engineering, Department of Bioengineering, Qilu University of Technology Shandong Academy of Sciences Jinan 250353 China
| | - Zaiyong An
- State Key Laboratory of Biobased Material and Green Papermaking, Shandong Provincial Key Lab of Microbial Engineering, Department of Bioengineering, Qilu University of Technology Shandong Academy of Sciences Jinan 250353 China
| | - Pingsheng Ji
- Department of Plant Pathology University of Georgia Tifton GA 31794 USA
| | - Xinli Liu
- State Key Laboratory of Biobased Material and Green Papermaking, Shandong Provincial Key Lab of Microbial Engineering, Department of Bioengineering, Qilu University of Technology Shandong Academy of Sciences Jinan 250353 China
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Ning HQ, Wang ZS, Li YQ, Tian WL, Sun GJ, Mo HZ. Effects of glycinin basic polypeptide on the textural and physicochemical properties of Scomberomorus niphonius surimi. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2019.108328] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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10
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Feng L, Li Y, Sun G, Zhao X. Antibacterial effect of orange Monascus pigment against Staphylococcus aureus. ACTA ALIMENTARIA 2019. [DOI: 10.1556/066.2019.48.2.4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- L.H. Feng
- School of Food Science & Engineering, Qilu University of Technology, Shandong Academy of Sciences, No. 3501 University Road of Changqing District, Jinan, 250353, Shandong Province. China
| | - Y.Q. Li
- School of Food Science & Engineering, Qilu University of Technology, Shandong Academy of Sciences, No. 3501 University Road of Changqing District, Jinan, 250353, Shandong Province. China
| | - G.J. Sun
- School of Food Science & Engineering, Qilu University of Technology, Shandong Academy of Sciences, No. 3501 University Road of Changqing District, Jinan, 250353, Shandong Province. China
| | - X.Z. Zhao
- School of Food Science & Engineering, Qilu University of Technology, Shandong Academy of Sciences, No. 3501 University Road of Changqing District, Jinan, 250353, Shandong Province. China
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Characterization and Antibacterial Activity of 7S and 11S Globulins Isolated from Cowpea Seed Protein. Molecules 2019; 24:molecules24061082. [PMID: 30893826 PMCID: PMC6471422 DOI: 10.3390/molecules24061082] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 03/15/2019] [Accepted: 03/16/2019] [Indexed: 01/21/2023] Open
Abstract
The present work was carried out to determine the characteristics and antibacterial activity of 7S and 11S globulins isolated from cowpea seed (Vigna unguiculata (L.) Walp.). The molecular mass of 7S globulin was demonstrated by SDS-PAGE bands to be of about 132, 129 and 95 kDa corresponding the α/, α and β subunits. The molecular mass of 11S globulin was demonstrated by SDS-PAGE bands to be existed between 28 and 52 kDa corresponding the basic and acidic subunits. The minimum inhibitory concentrations MICs of 7S and 11S globulins isolated from cowpea seed were determined against Gram positive bacteria viz: Listeria monocytogenes LMG 10470, Listeria ivanovii FLB 12, Staphylococcus aureus ATCC 25923 and Streptococcus pyogenes ATCC 19615, and Gram negative bacteria such as Klebsiella pneumonia ATCC 43816, Pseudomonas aeruginosa ATCC 26853, Escherichia coli ATCC 25922 and Salmonella ATCC 14028 using disc diffusion assay; they were showed to be in the range 10 to 200 µg/mL. Transmission electron microscope (TEM) examination of the protein-treated bacteria showed the antibacterial action of 11S globulin against S. typhimurium and P. aeruginosa was manifested by signs of cellular deformation, partial and complete lysis of cell components. Adding 11S globulin at both concentrations 50 and 100 µg/g to minced meat showed considerable decreases in bacterial counts of viable bacteria, psychrotrophs and coliforms compared to controls during 15 days storage at 4 °C, reflecting a promising perspective to use such globulin as a meat bio-preservative.
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Ning HQ, Li YQ, Tian QW, Wang ZS, Mo HZ. The apoptosis of Staphylococcus aureus induced by glycinin basic peptide through ROS oxidative stress response. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2018.09.028] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Antifungal Actions of Glycinin Basic Peptide against Aspergillus niger through the Collaborative Damage to Cell Membrane and Mitochondria. FOOD BIOPHYS 2018. [DOI: 10.1007/s11483-018-9561-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Zhao GP, Li YQ, Sun GJ, Mo HZ. Antibacterial Actions of Glycinin Basic Peptide against Escherichia coli. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:5173-5180. [PMID: 28590128 DOI: 10.1021/acs.jafc.7b02295] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Glycinin basic peptide (GBP) is an antibacterial ingredient that occurs naturally in the basic parts of soybean glycinin. The antibacterial actions of GBP against Escherichia coli ATCC 8739 were investigated in this study. The minimum inhibitory concentration of GBP against E. coli was 200 μg/mL. The exposure of E. coli cells to GBP induced significant cell damage and inactivated intracellular esterases (stressed and dead cells, 70.9% ± 0.04 for 200 μg/mL of GBP and 91.9% ± 0.06 for 400 μg/mL of GBP), as determined through dual staining in flow cytometry. GBP resulted in the exposure of phosphatidylserine in E. coli cells. The analyses of flow cytometry-manifested GBP treatment led to the shrinkage of the cell surface and the complication of cell granularity. The observations in transmission electron microscopy demonstrated that 400 μg/mL of GBP severely disrupted the membrane integrity, resulting in ruptures or pores in the membrane, outflows of intracellular contents, or aggregation of the cytoplasm. Release of alkaline phosphatase, lipopolysaccharide, and reducing sugar further verified that the membrane damage was due to GBP. In addition, GBP treatment changed the helicity and base staking of DNA, as determined by circular dichroism spectroscopy. These results showed that GBP had strong antibacterial activity against E. coli via membrane damage and DNA perturbation. Additionally, GBP exhibited no cytotoxicity on the viability of human embryonic kidney cells. Thus, GBP may be a promising candidate as a natural antibacterial agent.
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Affiliation(s)
- Guo-Ping Zhao
- School of Food Science & Engineering, Qilu University of Technology , No. 3501 University Road of Changqing District, 250353, Jinan, Shandong Province China
| | - Ying-Qiu Li
- School of Food Science & Engineering, Qilu University of Technology , No. 3501 University Road of Changqing District, 250353, Jinan, Shandong Province China
| | - Gui-Jin Sun
- School of Food Science & Engineering, Qilu University of Technology , No. 3501 University Road of Changqing District, 250353, Jinan, Shandong Province China
| | - Hai-Zhen Mo
- School of Food Science, Henan Institute of Science and Technology , Xinxiang, 453003, China
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