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Sun L, Yu Q, Peng F, Sun C, Wang D, Pu L, Xiong F, Tian Y, Peng C, Zhou Q. The antibacterial activity of berberine against Cutibacterium acnes: its therapeutic potential in inflammatory acne. Front Microbiol 2024; 14:1276383. [PMID: 38249466 PMCID: PMC10797013 DOI: 10.3389/fmicb.2023.1276383] [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: 08/11/2023] [Accepted: 12/11/2023] [Indexed: 01/23/2024] Open
Abstract
Cutibacterium acnes (C. acnes) is a major pathogen implicated in the evolution of acne inflammation. Inhibition of C. acnes-induced inflammation is a prospective acne therapy strategy. Berberine (BBR), a safe and effective natural ingredient, has been proven to exhibit powerful antimicrobial and anti-inflammatory properties. However, the antimicrobial effect of BBR against C. acnes and its role in C. acnes-mediated inflammatory acne have not been explored. The objective of this investigation was to assess the antibacterial activity of BBR against C. acnes and its inhibitory effect on the inflammatory response. The results of in vitro experiments showed that BBR exhibited significant inhibition zones against four C. acnes strains, with the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) in the range of 6.25-12.5 μg/mL and 12.5-25 μg/mL, respectively. On the bacterial growth curve, the BBR-treated C. acnes exhibited obvious growth inhibition. Transmission electron microscopy (TEM) images indicated that BBR treatment resulted in significant morphological changes in C. acnes. High-content imaging analysis further confirmed that BBR could effectively inhibit the proliferation of C. acnes. The disruption of cell wall and cell membrane structure by BBR treatment was preliminary confirmed according to the leakage of cellular contents such as potassium (K+), magnesium (Mg2+), and alkaline phosphatase (AKP). Furthermore, we found that BBR could reduce the transcript levels of genes associated with peptidoglycan synthesis (murC, murD, mraY, and murG). Meanwhile, we investigated the modulatory ability of BBR on C. acnes-induced skin inflammation in mice. The results showed that BBR effectively reduced the number of C. acnes colonized in mice's ears, thereby alleviating ear swelling and erythema and significantly decreasing ear thickness and weight. In addition, BBR significantly decreased the levels of pro-inflammatory cytokines IL-6, IL-1β, and TNF-α in auricular tissues. These results suggest that BBR has the potential to treat inflammatory acne induced by C. acnes.
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Affiliation(s)
- Luyao Sun
- State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Qian Yu
- State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Fu Peng
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, China
| | - Chen Sun
- State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Daibo Wang
- State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Lin Pu
- State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Fang Xiong
- State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yuncai Tian
- Shanghai Zhizhenzhichen Technologies Co., Ltd., Shanghai, China
| | - Cheng Peng
- State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Qinmei Zhou
- State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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2
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Mostafaei F, Hemmati S, Valizadeh H, Mahmoudian M, Sarfraz M, Abdi M, Torabi S, Baradaran B, Vosough M, Zakeri-Milani P. Enhanced intracellular accumulation and cytotoxicity of bortezomib against liver cancer cells using N-stearyl lactobionamide surface modified solid lipid nanoparticles. Int J Pharm 2024; 649:123635. [PMID: 38000649 DOI: 10.1016/j.ijpharm.2023.123635] [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: 06/11/2023] [Revised: 11/19/2023] [Accepted: 11/21/2023] [Indexed: 11/26/2023]
Abstract
Asialoglycoprotein receptors (ASGPRs) are highly expressed on hepatocytes and have been used for liver-targeted delivery and hepatocellular carcinoma (HCC) therapy. However, targeted delivery of bortezomib (BTZ) to HCC has not been reported. In this study, N-stearyl lactobionamide (N-SALB) with galactose (Gal) moiety was synthesized as a targeting agent and its structure was confirmed by FT-IR and NMR analyses. N-SALB surface-modified solid lipid nanoparticles (SLNs) loaded with BTZ (Gal-SLNs/BTZ) were developed to target BTZ delivery into HCC cancer cells. The Gal-SLNs/BTZ had an average particle size of 116.3 nm, polydispersity index (PDI) of 0.210, and zeta potential of -13.8 mV. TEM analysis showed their nanometer-sized spherical morphology. The encapsulation efficiency (EE) and drug loading (DL) capacity were 84.5 % and 1.16 %, respectively. Release studies showed that BTZ loaded inside the SLNs was slowly released over a period of 72 h at pH 7.4. Flow cytometry analysis showed significantly higher intracellular uptake of N-SALB-targeted nanoparticles than non-targeted nanoparticles in HepG2 cells. All lipid formulations showed good biocompatibility in the cytotoxicity study using MTT assay. Concentration-dependent cytotoxicity was observed for all formulations, with N-SALB-targeted nanoparticles demonstrating more cytotoxicity against HepG2 cells. The highest percentage of apoptosis was obtained for N-SALB-targeted nanoparticles compared to non-targeted nanoparticles (42.2 % and 8.70 %, respectively). Finally, biodistribution studies in HepG2 bearing nude mice showed that the accumulation of targeted nanoparticles in the tumor was significantly higher than non-targeted nanoparticles.
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Affiliation(s)
- Farid Mostafaei
- Faculty of Pharmacy, Tabriz University of Medical Science, Tabriz, Iran
| | - Salar Hemmati
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hadi Valizadeh
- Drug Applied Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Muhammad Sarfraz
- College of Pharmacy, Al Ain University, Al Ain, United Arab Emirates
| | - Mahdieh Abdi
- Faculty of Pharmacy, Tabriz University of Medical Science, Tabriz, Iran
| | - Shukoofeh Torabi
- Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, Academic Center for Education, Culture and Research (ACECR), Tehran, Iran
| | - Behzad Baradaran
- Immunology Research Center and Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Massoud Vosough
- Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, Academic Center for Education, Culture and Research (ACECR), Tehran, Iran; Experimental Cancer Medicine, Institution for Laboratory Medicine, Karolinska Institutet and Karolinska University Hospital-Huddinge, Sweden
| | - Parvin Zakeri-Milani
- Liver and Gastrointestinal Diseases Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.
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3
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de Souza RC, da Silva LM, Buratti BA, Carra S, Flores M, Puton BM, Rigotti M, Salvador M, Malvessi E, Moreira FKV, Steffens C, Valduga E, Zeni J. Purification, bioactivity and application of maltobionic acid in active films. 3 Biotech 2024; 14:32. [PMID: 38188310 PMCID: PMC10764696 DOI: 10.1007/s13205-023-03879-3] [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: 07/14/2023] [Accepted: 12/05/2023] [Indexed: 01/09/2024] Open
Abstract
The objective of this study was to purify sodium maltobionate using Zymomonas mobilis cells immobilized in situ on flexible polyurethane (PU) and convert it into maltobionic acid for further evaluation of bioactivity (iron chelating ability, antibacterial potential and cytoprotection) and incorporation into films based on cassava starch, chitosan, and cellulose acetate. Sodium maltobionate exhibited a purity of 98.1% and demonstrated an iron chelating ability of approximately 50% at concentrations ranging from 15 to 20 mg mL-1. Maltobionic acid displayed minimal inhibitory concentrations (MIC) of 8.5, 10.5, 8.0, and 8.0 mg mL-1 for Salmonella enterica serovar Choleraesuis, Escherichia coli, Staphylococcus aureus, and Listeria monocytogenes, respectively. Maltobionic acid did not exhibit cytotoxicity in HEK-293 cells at concentrations up to 500 µg mL-1. Films incorporating 7.5% maltobionic acid into cassava starch and chitosan demonstrated inhibition of microbial growth, with halo sizes ranging from 15.67 to 22.33 mm. These films had a thickness of 0.17 and 0.13 mm, water solubility of 62.68% and 78.85%, and oil solubility of 6.23% and 11.91%, respectively. The cellulose acetate film exhibited a non-uniform visual appearance due to the low solubility of maltobionic acid in acetone. Mechanical and optical properties were enhanced with the addition of maltobionic acid to chitosan and cassava films. The chitosan film with 7.5% maltobionic acid demonstrated higher tensile strength (30.3 MPa) and elongation at break (9.0%). In contrast, the cassava starch film exhibited a high elastic modulus (1.7). Overall, maltobionic acid, with its antibacterial activity, holds promise for applications in active films suitable for food packaging. Supplementary Information The online version contains supplementary material available at 10.1007/s13205-023-03879-3.
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Affiliation(s)
- Roberta Cristina de Souza
- Department of Food Engineering, Universidade Regional Integrada Do Alto Uruguai E das Missões, CEP: 99709-910 Erechim, RS Brasil
| | - Leonardo Meirelles da Silva
- Department of Food Engineering, Universidade Regional Integrada Do Alto Uruguai E das Missões, CEP: 99709-910 Erechim, RS Brasil
| | - Bruna Angela Buratti
- Department of Food Engineering, Universidade Regional Integrada Do Alto Uruguai E das Missões, CEP: 99709-910 Erechim, RS Brasil
| | - Sabrina Carra
- Biotechnology Institute, Universidade de Caxias Do Sul, CEP: 95070-560 Caxias Do Sul, RS Brasil
| | - Maicon Flores
- Biotechnology Institute, Universidade de Caxias Do Sul, CEP: 95070-560 Caxias Do Sul, RS Brasil
| | - Bruna Maria Puton
- Department of Food Engineering, Universidade Regional Integrada Do Alto Uruguai E das Missões, CEP: 99709-910 Erechim, RS Brasil
| | - Marina Rigotti
- Biotechnology Institute, Universidade de Caxias Do Sul, CEP: 95070-560 Caxias Do Sul, RS Brasil
| | - Mirian Salvador
- Biotechnology Institute, Universidade de Caxias Do Sul, CEP: 95070-560 Caxias Do Sul, RS Brasil
| | - Eloane Malvessi
- Biotechnology Institute, Universidade de Caxias Do Sul, CEP: 95070-560 Caxias Do Sul, RS Brasil
| | | | - Clarice Steffens
- Department of Food Engineering, Universidade Regional Integrada Do Alto Uruguai E das Missões, CEP: 99709-910 Erechim, RS Brasil
| | - Eunice Valduga
- Department of Food Engineering, Universidade Regional Integrada Do Alto Uruguai E das Missões, CEP: 99709-910 Erechim, RS Brasil
| | - Jamile Zeni
- Department of Food Engineering, Universidade Regional Integrada Do Alto Uruguai E das Missões, CEP: 99709-910 Erechim, RS Brasil
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Yi D, Wen X, Xu W, Xu Y, Deng X, Yan G, Wu L, Liang Q, Liang Z, Peng J, He J. Development of an amoxicillin-radix scutellaria extract formulation and evaluation of its pharmacokinetics in pigs. BMC Vet Res 2023; 19:164. [PMID: 37726783 PMCID: PMC10507961 DOI: 10.1186/s12917-023-03713-1] [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: 10/30/2022] [Accepted: 08/29/2023] [Indexed: 09/21/2023] Open
Abstract
BACKGROUND A new antibacterial compound powder of amoxicillin (AMO)/Radix Scutellaria extract (RSE) was developed, and its pharmacokinetics were determined in pigs following oral administration. RESULTS The MIC ranges of AMO against Escherichia coli, Staphylococcus aureus and Streptococcus were 1-8 μg/mL, 0.5-4 μg/mL and 0.5-64 μg/mL, respectively. The MIC ranges of RSE against E. coli, S. aureus, and Streptococcus were greater than 2.5 mg/mL, 0.156-2.5 mg/mL, and greater than 2.5 mg/mL, respectively. For S. aureus, the combined drug susceptibility test showed that AMO and RSE had an additive or synergistic effect. The results of compatibility test, the excipient screening test and the drug quality control test showed that the formulation had stable quality and uniform properties under the test conditions. Two studies were conducted to investigate the pharmacokinetics of the compound product in pigs. First, the pharmacokinetics of the AMO-RSE powder were compared with those of their respective single products. The results showed no significant change in the main pharmacokinetic parameters when either component was removed from the compound formulation; thus, AMO and RSE have no pharmacokinetic interaction in pigs. Second, pigs were orally administered three different doses of AMO-RSE powder. The Cmax and AUC increased proportionally with increasing p.o. dose; thus, the λz, t1/2λ, MRT, and Tmax were unchanged for the doses of 10, 20, and 30 mg/kg AMO and the doses of 5, 10, and 15 mg/kg BCL, showing that AMO/baicalin in AMO-RSE powder showed linear pharmacokinetic characteristics in pigs. CONCLUSIONS The combined drug sensitivity test of AMO and RSE against S. aureus showed that the combination was additive or synergistic. Pharmacokinetic studies indicated that AMO and BCL do not interfere with each other in pigs when used in a compound formulation. The pharmacokinetic parameters remained unchanged regardless of the dose for p.o. administration, indicating linear pharmacokinetic properties over the tested dose range. The quality of the AMO-RSE powder was good and stable, providing a foundation for its clinical application in veterinary medicine. Further bioavailability, PK/PD and clinical trials are still needed to determine the final dosage regimen.
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Affiliation(s)
- Dandan Yi
- College of Animal Science and Technology, Guangxi University, Room 124, 100 Daxue Road, Xixiangtang District, Nanning, Guangxi, 530005, P. R. China
| | - Xuemei Wen
- College of Animal Science and Technology, Guangxi University, Room 124, 100 Daxue Road, Xixiangtang District, Nanning, Guangxi, 530005, P. R. China
| | - Wei Xu
- College of Animal Science and Technology, Guangxi University, Room 124, 100 Daxue Road, Xixiangtang District, Nanning, Guangxi, 530005, P. R. China
| | - Yangfeng Xu
- College of Animal Science and Technology, Guangxi University, Room 124, 100 Daxue Road, Xixiangtang District, Nanning, Guangxi, 530005, P. R. China
| | - Xin Deng
- College of Animal Science and Technology, Guangxi University, Room 124, 100 Daxue Road, Xixiangtang District, Nanning, Guangxi, 530005, P. R. China
| | - Guoqing Yan
- College of Animal Science and Technology, Guangxi University, Room 124, 100 Daxue Road, Xixiangtang District, Nanning, Guangxi, 530005, P. R. China
| | - Liqin Wu
- College of Animal Science and Technology, Guangxi University, Room 124, 100 Daxue Road, Xixiangtang District, Nanning, Guangxi, 530005, P. R. China
| | - Qiuling Liang
- College of Animal Science and Technology, Guangxi University, Room 124, 100 Daxue Road, Xixiangtang District, Nanning, Guangxi, 530005, P. R. China
| | - Zhengmin Liang
- College of Animal Science and Technology, Guangxi University, Room 124, 100 Daxue Road, Xixiangtang District, Nanning, Guangxi, 530005, P. R. China
- Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning, 530004, P. R. China
- Guangxi Zhuang Autonomous Region Engineering Research Center of Veterinary Biologics, Nanning, 530004, P. R. China
| | - Jianbo Peng
- Department of Animal Science and Technology, Guangxi Agricultural Vocational College, Nanning, 530007, P. R. China
| | - Jiakang He
- College of Animal Science and Technology, Guangxi University, Room 124, 100 Daxue Road, Xixiangtang District, Nanning, Guangxi, 530005, P. R. China.
- Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning, 530004, P. R. China.
- Guangxi Zhuang Autonomous Region Engineering Research Center of Veterinary Biologics, Nanning, 530004, P. R. China.
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5
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Guo H, Zhao F, Lei B, Yang W, Guo L, Qian J. Synergistic antimicrobial system based on nisin and α-hydroxy organic acids. Arch Microbiol 2023; 205:225. [PMID: 37154948 DOI: 10.1007/s00203-023-03572-2] [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: 03/29/2023] [Revised: 04/19/2023] [Accepted: 05/01/2023] [Indexed: 05/10/2023]
Abstract
Synergistic antimicrobial is a promising way to overcome microbial contamination in food and drugs. In the study, the synergistic effect between nisin and α-hydroxy organic acids on E. coli and S. aureus was investigated. The experimental results showed that the combined antibacterial ability of nisin-citric acid system was the most prominent. The FCI index also indicated that the combination of nisin and citric acid had synergistic effects on E. coli. When nisin was combined with citric acid, the inhibition rates of E. coli and S. aureus were increased to 4.43 and 1.49 times, respectively. Nisin-citric acid complex system could effectively slow down the proliferation of S. aureus and E. coli at lower concentrations, and can quickly destroy the cell membrane after 4 h of action. Therefore, the combination of nisin and citric acid is expected to be a potential solution for food and drug preservation.
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Affiliation(s)
- Hui Guo
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang Province, People's Republic of China.
| | - Fengju Zhao
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang Province, People's Republic of China
| | - Bingshuang Lei
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang Province, People's Republic of China
| | - Wei Yang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang Province, People's Republic of China
| | - Lili Guo
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang Province, People's Republic of China
| | - Junqing Qian
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang Province, People's Republic of China
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6
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Piątek-Gołda W, Sulej J, Grąz M, Waśko P, Janik-Zabrotowicz E, Osińska-Jaroszuk M. Multi-Enzymatic Synthesis of Lactobionic Acid Using Wood-Degrading Enzymes Produced by White Rot Fungi. Metabolites 2023; 13:metabo13040469. [PMID: 37110128 PMCID: PMC10146812 DOI: 10.3390/metabo13040469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/14/2023] [Accepted: 03/22/2023] [Indexed: 04/29/2023] Open
Abstract
Enzymes produced by white rot fungi are involved in the synthesis of secondary metabolites with valuable biotechnological properties. One of these metabolites is lactobionic acid (LBA). The aim of this study was to characterize a novel enzyme system consisting of a cellobiose dehydrogenase from Phlebia lindtneri (PlCDH), a laccase from Cerrena unicolor (CuLAC), a redox mediator (ABTS or DCPIP), and lactose as a substrate. We used quantitative (HPLC) and qualitative methods (TLC, FTIR) to characterise the obtained LBA. The free radical scavenging effect of the synthesised LBA was assessed with the DPPH method. Bactericidal properties were tested against Gram-negative and Gram-positive bacteria. We obtained LBA in all the systems tested; however, the study showed that the temperature of 50 °C with the addition of ABTS was the most advantageous condition for the synthesis of lactobionic acid. A mixture with 13 mM LBA synthesised at 50 °C with DCPIP showed the best antioxidant properties (40% higher compared with the commercial reagent). Furthermore, LBA had an inhibitory effect on all the bacteria tested, but the effect was better against Gram-negative bacteria with growth inhibition no lower than 70%. Summarizing the obtained data, lactobionic acid derived in a multienzymatic system is a compound with great biotechnological potential.
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Affiliation(s)
- Wiktoria Piątek-Gołda
- Department of Biochemistry and Biotechnology, Institute of Biological Sciences, Maria Curie-Sklodowska University, 19 Akademicka St., 20-033 Lublin, Poland
| | - Justyna Sulej
- Department of Biochemistry and Biotechnology, Institute of Biological Sciences, Maria Curie-Sklodowska University, 19 Akademicka St., 20-033 Lublin, Poland
| | - Marcin Grąz
- Department of Biochemistry and Biotechnology, Institute of Biological Sciences, Maria Curie-Sklodowska University, 19 Akademicka St., 20-033 Lublin, Poland
| | - Piotr Waśko
- Department of Plant Physiology and Biophysics, Institute of Biological Sciences, Maria Curie-Sklodowska University, 19 Akademicka St., 20-033 Lublin, Poland
- Core Facility of Biospectroscopy, Institute of Biological Sciences, Maria Curie-Sklodowska University, 19 Akademicka St., 20-033 Lublin, Poland
| | - Ewa Janik-Zabrotowicz
- Core Facility of Biospectroscopy, Institute of Biological Sciences, Maria Curie-Sklodowska University, 19 Akademicka St., 20-033 Lublin, Poland
- Department of Cell Biology, Institute of Biological Sciences, Maria Curie-Sklodowska University, 19 Akademicka St., 20-033 Lublin, Poland
| | - Monika Osińska-Jaroszuk
- Department of Biochemistry and Biotechnology, Institute of Biological Sciences, Maria Curie-Sklodowska University, 19 Akademicka St., 20-033 Lublin, Poland
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7
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Antibacterial mechanism of lactobionic acid against Shewanella baltica and Shewanella putrefaciens and its application on refrigerated shrimp. FOOD BIOSCI 2023. [DOI: 10.1016/j.fbio.2022.102291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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8
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Liu G, Liu A, Yang C, Zhou C, Zhou Q, Li H, Yang H, Mo J, Zhang Z, Li G, Si H, Ou C. Portulaca oleracea L. organic acid extract inhibits persistent methicillin-resistant Staphylococcus aureus in vitro and in vivo. Front Microbiol 2023; 13:1076154. [PMID: 36713183 PMCID: PMC9874160 DOI: 10.3389/fmicb.2022.1076154] [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: 11/07/2022] [Accepted: 12/13/2022] [Indexed: 01/12/2023] Open
Abstract
Staphylococcus aureus continues to be one of the most important pathogens capable of causing a wide range of infections in different sites of the body in humans and livestock. With the emergence of methicillin-resistant strains and the introduction of strict laws on antibiotic usage in animals, antibiotic replacement therapy has become increasingly popular. Previous studies have shown that Portulaca oleracea L. extract exerts a certain degree of bacteriostatic effect, although the active ingredients are unknown. In the present study, the antibacterial activity of the organic acid of P. oleracea (OAPO) against S. aureus was examined using a series of experiments, including the minimum inhibitory concentration, growth curve, and bacteriostasis curve. In vitro antibacterial mechanisms were evaluated based on the integrity and permeability of the cell wall and membrane, scanning electron microscopy, and soluble protein content. A mouse skin wound recovery model was used to verify the antibacterial effects of OAPO on S. aureus in vivo. The results showed that OAPO not only improved skin wound recovery but also decreased the bacterial load in skin wounds. Moreover, the number of inflammatory cells and cytokines decreased in the OAPO-treated groups. In summary, this study reports a botanical extract that can inhibit S. aureus in vitro and in vivo, indicating the potential use of OAPO to prevent and control S. aureus infection in the near future.
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Affiliation(s)
- Gengsong Liu
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Aijing Liu
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Cheng Yang
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Congcong Zhou
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Qiaoyan Zhou
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Haizhu Li
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Hongchun Yang
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Jiahao Mo
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Zhidan Zhang
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Gonghe Li
- College of Animal Science and Technology, Guangxi University, Nanning, China,Guangxi Zhuang Autonomous Region Engineering Research Center of Veterinary Biologics, Nanning, China,Guangxi Key Laboratory of Animal Reproduction, Breeding and Disease Control, Nanning, China
| | - Hongbin Si
- College of Animal Science and Technology, Guangxi University, Nanning, China,Guangxi Zhuang Autonomous Region Engineering Research Center of Veterinary Biologics, Nanning, China,Guangxi Key Laboratory of Animal Reproduction, Breeding and Disease Control, Nanning, China
| | - Changbo Ou
- College of Animal Science and Technology, Guangxi University, Nanning, China,Guangxi Zhuang Autonomous Region Engineering Research Center of Veterinary Biologics, Nanning, China,Guangxi Key Laboratory of Animal Reproduction, Breeding and Disease Control, Nanning, China,*Correspondence: Changbo Ou, ✉
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9
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Liu A, Wan Q, Li J, Li Q, Hu K, Ao X, Chen S, He L, Hu X, Hu B, Yang Y, Zou L, Liu S. Rose bud extract as a natural antimicrobial agent against Staphylococcus aureus: Mechanisms and application in maintaining pork safety. Lebensm Wiss Technol 2023. [DOI: 10.1016/j.lwt.2023.114527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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10
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Xie J, Wang L, Zhang X, Li Y, Liao X, Yang C, Tang RY. Discovery of New Anti-MRSA Agents Based on Phenoxyethanol and Its Mechanism. ACS Infect Dis 2022; 8:2291-2306. [PMID: 36255441 DOI: 10.1021/acsinfecdis.2c00365] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA) poses a severe threat to public health and safety. The discovery and development of novel anti-MRSA drugs with a new mode of action are a challenge. In this study, a class of novel aryloxyethyl propiolates and their homologues as anti-MRSA agents have been designed and synthesized based on phenoxyethanol, of which compound II-39 showed high inhibitory activity against MRSA with an MIC of 0.78 μg/mL and an MBC of 3.13 μg/mL, which was better than that of vancomycin. Compound II-39 could destroy the cell wall and cell membrane, inhibited the formation of a biofilm, and bound to the DNA of MRSA through the electrostatic and groove interaction. Proteomic and metabolomic studies revealed that compound II-39 affected multiple intracellular metabolic pathways of MRSA. Notably, compound II-39 could effectively inhibit the expression of CrtPQMN proteins and block the biosynthesis of virulence factor (staphyloxanthin). Thus, aryloxyethyl propiolates and their homologues are promising anti-MRSA agents with multiple targets.
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Affiliation(s)
- Jinxin Xie
- Department of Applied Chemistry, College of Materials and Energy, South China Agricultural University, Guangzhou510642, China
| | - Lijuan Wang
- Department of Applied Chemistry, College of Materials and Energy, South China Agricultural University, Guangzhou510642, China
| | - Xiaoyong Zhang
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou510642, China
| | - Yiyang Li
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou510642, China
| | - Xin Liao
- Department of Applied Chemistry, College of Materials and Energy, South China Agricultural University, Guangzhou510642, China
| | - Caixin Yang
- Department of Applied Chemistry, College of Materials and Energy, South China Agricultural University, Guangzhou510642, China
| | - Ri-Yuan Tang
- Department of Applied Chemistry, College of Materials and Energy, South China Agricultural University, Guangzhou510642, China.,Key Laboratory of Natural Pesticide & Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou510642, China
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11
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Sáez-Orviz S, Marcet I, Rendueles M, Díaz M. The antimicrobial and bioactive properties of lactobionic acid. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:3495-3502. [PMID: 35174887 DOI: 10.1002/jsfa.11823] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 02/01/2022] [Accepted: 02/17/2022] [Indexed: 06/14/2023]
Abstract
Lactobionic acid (LBA) is a bioactive molecule that has generated keen interest in different industries. However, its future application in the food area is one of the most promising. Chemically, it is a polyhydroxy acid formed by the union of two molecules (galactose and gluconic acid) linked by an ether-bond, showing many interesting and unusual properties due to its structure and composition, although it is traditionally known in the food industry for its chelating, moisturizing, gelling, and antioxidant properties. There has been much research into the production of LBA, either by microbial fermentation or biocatalytic approaches such as enzymatic synthesis, but its use in foodstuffs, to produce new functional products and to evaluate its antimicrobial activity against food-borne pathogens, is a relatively new topic that has attracted the interest of the international research community recently. Furthermore, in spite of the potential of LBA, it has been approved only by the US Food and Drug Administration, and for its use as the salt form, but the publication of new comprehensive studies, able to agglutinate all the new food-related LBA research results, could disseminate knowledge about this compound and have an influence on its current regulation status. The aim of the present review is to describe the most recent advances and research on its antimicrobial potential, as well as summarizing the significant aspects that make LBA a promising bioactive compound for the food sector. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Sara Sáez-Orviz
- Department of Chemical and Environmental Engineering, University of Oviedo, Oviedo, Spain
| | - Ismael Marcet
- Department of Chemical and Environmental Engineering, University of Oviedo, Oviedo, Spain
| | - Manuel Rendueles
- Department of Chemical and Environmental Engineering, University of Oviedo, Oviedo, Spain
| | - Mario Díaz
- Department of Chemical and Environmental Engineering, University of Oviedo, Oviedo, Spain
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12
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Fan Q, He Q, Zhang T, Song W, Sheng Q, Yuan Y, Yue T. Antibiofilm potential of lactobionic acid against Salmonella Typhimurium. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113461] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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13
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Yang L, Zhang C, Su Z, Zhao L, Wu J, Sun X, Zhang X, Hu X. Inactivation of Salmonella typhimurium SL1344 by Chlorogenic Acid and the Impairment of Cellular Integrity. Front Microbiol 2022; 13:887950. [PMID: 35495681 PMCID: PMC9048040 DOI: 10.3389/fmicb.2022.887950] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 03/25/2022] [Indexed: 11/23/2022] Open
Abstract
Chlorogenic acid (CGA) is an antibacterial agent that can be isolated from Eucommia ulmoides Oliver, a Chinese medicinal and edible plant food. The inhibitory effect of CGA on bacterial growth and stiffness of the outer membrane (OM) had been reported, while more evidence were required to elucidate its impairment of cell wall. In this study, the morphological and physiochemical changes of Salmonella cells under CGA treatment were investigated. Firstly, the minimum inhibitory concentration (MIC) of CGA against Salmonella was assayed. Later, the permeability of OM and activity of the proteins released were measured and observed to reveal the alteration of OM characteristic and cellular morphology. Finally, reactive oxygen species and cell membrane fluidity were analyzed, respectively, to elucidate how CGA damaged cell surface. The results showed that MIC of CGA against Salmonella was 6.25 mg/L. Under sub-lethal doses of CGA, the OM permeability and the release of soluble proteins were enhanced evidently, and Salmonella cells showed more deformed and shrunken, confirming the impairment of cellular integrity under CGA. Finally, the possible cause of cell surface damage was investigated. the fluidity of the membrane was increased upon CGA treatment, which may the possible cause of OM by CGA.
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Affiliation(s)
- Liang Yang
- Department of Brewing Engineering, Moutai Institute, Renhuai, China.,School of Biotechnology, Jiangnan University, Wuxi, China
| | - Chunlin Zhang
- Department of Brewing Engineering, Moutai Institute, Renhuai, China
| | - Zijing Su
- Department of Brewing Engineering, Moutai Institute, Renhuai, China
| | - Liang Zhao
- Department of Brewing Engineering, Moutai Institute, Renhuai, China
| | - Jiaxin Wu
- School of Biotechnology, Jiangnan University, Wuxi, China
| | - Xiaoying Sun
- School of Biotechnology, Jiangnan University, Wuxi, China
| | - Xiujuan Zhang
- School of Biotechnology, Jiangnan University, Wuxi, China
| | - Xiaoqing Hu
- School of Biotechnology, Jiangnan University, Wuxi, China.,State Key Laboratory of Food Science and Technology, Wuxi, China.,Joint Laboratory on Food Safety, Jiangnan University, Wuxi, China
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14
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Fan Q, Yuan Y, Zhang T, Song W, Sheng Q, Yue T. Inhibitory effects of lactobionic acid on Vibrio parahaemolyticus planktonic cells and biofilms. Food Microbiol 2022; 103:103963. [DOI: 10.1016/j.fm.2021.103963] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 12/02/2021] [Accepted: 12/03/2021] [Indexed: 12/21/2022]
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15
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Salmonella spp. Response to Lytic Bacteriophage and Lactic Acid on Marinated and Tenderized Raw Pork Loins. Foods 2022; 11:foods11060879. [PMID: 35327301 PMCID: PMC8951642 DOI: 10.3390/foods11060879] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 03/16/2022] [Accepted: 03/17/2022] [Indexed: 11/17/2022] Open
Abstract
Bacterial food poisoning cases due to Salmonella have been linked with a variety of pork products. This study evaluated the effects of a Salmonella-specific lytic bacteriophage and lactic acid (LA) on Salmonella Enteritidis, Salmonella Montevideo, and Salmonella Heidelberg growth on raw pork loins. Pork loins were cut into approximately 4 cm thick slices. Pork slices were randomly assigned to five treatment groups (control, DI water, LA 2.5%, phage 5%, and LA 2.5% + phage 5%) with six slices per group per replication. Pork loins were inoculated with 106 CFU/mL of Salmonella spp. and stored at 4 °C for 30 min. After 1 h of treatment application and marination, phage 5% significantly (p < 0.05) reduced the surface bacterial population by 2.30 logs when compared with the control group. Moreover, the combined treatment of LA 2.5% + phage 5% significantly (p < 0.05) reduced the surface bacterial population by more than 2.36 logs after 1 h of marination. In the post-tenderization surface samples, the combination of both phage and LA showed a significant reduction (p < 0.05) when compared with the control group. However, the treatments had no effect (p > 0.05) when analyzing the translocation of pathogens on pork loins.
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16
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Zhang JJ, Qu LB, Bi YF, Pan CX, Yang R, Zeng HJ. Antibacterial activity and mechanism of chloroform fraction from aqueous extract of mugwort leaves (Artemisia argyi L.) against Staphylococcus aureus. Lett Appl Microbiol 2022; 74:893-900. [PMID: 35231137 DOI: 10.1111/lam.13684] [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: 11/06/2021] [Revised: 01/18/2022] [Accepted: 02/18/2022] [Indexed: 01/04/2023]
Abstract
In this work, the antibacterial activity and mechanism of chloroform fraction obtained from aqueous extract of mugwort leaves against Staphylococcus aureus were investigated. The extract showed obvious antibacterial activity against S. aureus which the minimum inhibitory concentration and minimum bactericidal concentration were determined to be 3·0 and 6·0 mg ml-1 respectively. The mechanism study suggested that the extract could destroy the integrity of the S. aureus cell walls and increase the permeability of cell membrane in a certain concentration, but it could not kill S. aureus in a short time. Instead, the extract could make bacteria in a state of apoptosis for a long time, interfere with the normal physiological metabolism of bacteria, and eventually make bacteria die, which was confirm by scanning electronic microscope.
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Affiliation(s)
- J-J Zhang
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, PR China
| | - L-B Qu
- Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications, College of Chemistry, Zhengzhou University, Zhengzhou, PR China
| | - Y-F Bi
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, PR China
| | - C-X Pan
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, PR China
| | - R Yang
- Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications, College of Chemistry, Zhengzhou University, Zhengzhou, PR China
| | - H-J Zeng
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, PR China
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17
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Enhanced Antibacterial Potential of Amoxicillin against Helicobacter pylori Mediated by Lactobionic Acid Coated Zn-MOFs. Antibiotics (Basel) 2021; 10:antibiotics10091071. [PMID: 34572653 PMCID: PMC8470299 DOI: 10.3390/antibiotics10091071] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 07/16/2021] [Accepted: 07/22/2021] [Indexed: 01/02/2023] Open
Abstract
H. pylori (Helicobacter pylori) causes a common chronic infectious disease and infects around 4.4 billion people worldwide. H. pylori was classified as a member of the primary class of stomach cancer (stomach adenocarcinoma). Hence, this study was conducted to design a novel lactobionic acid (LBA)-coated Zn-MOFs to enhance bactericidal activity of Amoxicillin (AMX) against H. pylori. The synthesized Zn-MOFs were characterized by various techniques which included Dynamic Light Scattering (DLS), Fourier Transform Infrared (FT-IR) Spectroscopy, Powder X-ray diffraction, scanning electron microscope, and atomic force microscope. They were capable of encapsulating an increased amount of AMX and investigated for their efficacy to enhance the antibacterial potential of their loaded drug candidate. Interestingly, it was found that LBA-coated Zn-MOFs significantly reduced the IC50, MIC, and MBIC values of AMX against H. pylori. Morphological investigation of treated bacterial cells further authenticated the above results as LBA-coated Zn-MOFs-treated cells underwent complete distortion compared with non-coated AMX loaded Zn-MOFs. Based on the results of the study, it can be suggested that LBA-coated Zn-MOFs may be an effective alternate candidate to provide new perspective for the treatment of H. pylori infections.
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18
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Walker N, Li S, Strauss H, Pokharel S. Salmonella Typhimurium DT 104 response to Lytic bacteriophage and Lactobionic acid on raw chicken breast. Food Microbiol 2021; 100:103862. [PMID: 34416962 DOI: 10.1016/j.fm.2021.103862] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 06/18/2021] [Accepted: 06/19/2021] [Indexed: 01/18/2023]
Abstract
Bacterial food poisoning cases due to Salmonella have been linked with a variety of poultry products. This study evaluated the effects of a Salmonella-specific Lytic bacteriophage and Lactobionic acid (LBA) on Salmonella Typhimurium DT 104 growth on raw chicken breast meat. Each chicken breast was randomly assigned to a treatment group (Control, DI water, phage 1%, phage 5%, LBA 10 mg/mL, LBA 20 mg/mL, and phage 5% + LBA 20 mg/mL) with four chicken breasts per group. Samples were inoculated with 106 CFU/mL of Salmonella and stored at 4 °C for 30 min. The inoculated chicken breasts were randomly assigned to different storage time (0 h, 1 h, 24 h, or 48 h). Both time and treatment showed significance reduction (P < 0.0001) of microbial growth. The weight loss was significantly different (P < 0.0001) between treatments. The LBA treatments were not effective when compared to the control group, but Lytic bacteriophage significantly reduced the amount of microbial growth.
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Affiliation(s)
- Nicole Walker
- Biological Sciences Department, California Polytechnic State University, San Luis Obispo, 93407, USA
| | - Sherita Li
- Animal Science Department, California Polytechnic State University, San Luis Obispo, 93407, USA
| | - Hannah Strauss
- Food Science & Nutrition Department, California Polytechnic State University, San Luis Obispo, 93407, USA
| | - Siroj Pokharel
- Animal Science Department, California Polytechnic State University, San Luis Obispo, 93407, USA.
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19
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Cao J, Zheng Y. iTRAQ-based quantitative proteomic analysis of the antimicrobial mechanism of lactobionic acid against Staphylococcus aureus. Food Funct 2021; 12:1349-1360. [PMID: 33448275 DOI: 10.1039/d0fo02491k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Staphylococcus aureus is a common pathogenic microorganism that causes foodborne diseases. Lactobionic acid (LBA) is a natural polyhydroxy acid widely used in the food industry. To understand the antibacterial action of LBA against S. aureus better and identify 274 differentially expressed proteins upon LBA treatment, an isobaric tag was used for relative and absolute quantification-based quantitative proteomics. Combined with ultrastructural observations, results suggested that LBA inhibited S. aureus by disrupting cell wall and membrane integrity, regulating adenosine triphosphate binding cassette transporter expression, affecting cellular energy metabolism, attenuating S. aureus virulence and reducing infection, and decreasing the levels of proteins involved in stress and starvation responses. Quantitative real-time polymerase chain reaction analysis was used to validate the proteomic data. The results provide new insights into the inhibitory effects of LBA on S. aureus and suggest that LBA application may be a promising method to ensure food and pharmaceutical product safety.
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Affiliation(s)
- Jiarong Cao
- College of Food Science, Shenyang Agricultural University, No. 120 Dongling Road, Shenyang, Liaoning 110161, P.R. China.
| | - Yan Zheng
- College of Food Science, Shenyang Agricultural University, No. 120 Dongling Road, Shenyang, Liaoning 110161, P.R. China.
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20
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Elucidating Antibacterial Activity and Mechanism of Daphnetin against Pseudomonas fluorescens and Shewanella putrefaciens. J FOOD QUALITY 2020. [DOI: 10.1155/2020/6622355] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
In this research, the antibacterial activity and mechanism of daphnetin against Pseudomonas fluorescens and Shewanella putrefaciens were evaluated. The minimum inhibitory concentration (MIC) of daphnetin on P. fluorescens and S. putrefaciens was 0.16 and 0.08 mg·mL−1, respectively. The growth curve test also showed that daphnetin had a good antibacterial effect. The results of intracellular component leakage and cell viability analysis illustrated that daphnetin destroyed the morphology of the cell membrane. According to scanning electron microscope and transmission electron microscope observations, the treated bacterial cells displayed obvious morphological and ultrastructural changes in the cell membrane of the two tested strains, whichconfirmed daphnetin’s damage to the integrity of the cell membrane. The findings indicated that daphnetin mainly exerted its antibacterial effect by destroying the membrane and suggested that it had good potential to be as a natural food preservative.
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21
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Huang J, Yang L, Zou Y, Luo S, Wang X, Liang Y, Du Y, Feng R, Wei Q. Antibacterial activity and mechanism of three isomeric terpineols of Cinnamomum longepaniculatum leaf oil. Folia Microbiol (Praha) 2020; 66:59-67. [PMID: 32895862 DOI: 10.1007/s12223-020-00818-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 08/30/2020] [Indexed: 11/30/2022]
Abstract
α-Terpineol, terpinen-4-ol, and δ-terpineol, isomers of terpineol, are among the compounds that give Cinnamomum longepaniculatum leaf oil its distinguished pleasant smell. The objective of this study was to evaluate the antimicrobial activity of these three isomeric terpineols. The determination of antibacterial activity was based on the minimum inhibition concentration (MIC) and minimum bactericide concentration (MBC). Changes in time-kill curve, alkaline phosphatase (AKP), UV-absorbing material, membrane potential, and scanning electron microscopy (SEM) were measured to elucidate the possible antimicrobial mechanism. α-Terpineol, terpinen-4-ol, and δ-terpineol demonstrated good inhibitory effects against several gram-negative bacteria, particularly Shigella flexneri. MIC and MBC of α-terpineol and terpinen-4-ol were similar (0.766 mg/mL and 1.531 mg/mL, respectively) for S. flexneri, while the MIC and MBC values of δ-terpineol were 0.780 mg/mL and 3.125 mg/mL, respectively. Time-kill curves showed that the antibacterial activities of the tested compounds were in a concentration-dependent manner. Release of nucleic acids and proteins along with a decrease in membrane potential proved that α-terpineol, terpinen-4-ol, and δ-terpineol could increase the membrane permeability of Shigella flexneri. Additionally, the release of AKP suggested that the cell wall was destroyed. SEM analysis further confirmed that S. flexneri cell membranes were damaged by α-terpineol, terpinen-4-ol, and δ-terpineol. Our research suggests that these three isomeric terpineols have the potential of being used as natural antibacterial agents by destroying the cell membrane and wall, resulting in cell death. However, the specific antibacterial activity differences need further investigation.
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Affiliation(s)
- Jinfeng Huang
- Key Lab of Aromatic Plant Resources Exploitation and Utilization in Sichuan Higher Education, Yibin University, Yibin, 644000, People's Republic of China
- College of Food and Biotechnology, Xihua University, Chengdu, 610039, People's Republic of China
| | - Liyan Yang
- Key Lab of Aromatic Plant Resources Exploitation and Utilization in Sichuan Higher Education, Yibin University, Yibin, 644000, People's Republic of China
| | - Yue Zou
- Key Lab of Aromatic Plant Resources Exploitation and Utilization in Sichuan Higher Education, Yibin University, Yibin, 644000, People's Republic of China
- College of Food and Biotechnology, Xihua University, Chengdu, 610039, People's Republic of China
| | - Sican Luo
- Key Lab of Aromatic Plant Resources Exploitation and Utilization in Sichuan Higher Education, Yibin University, Yibin, 644000, People's Republic of China
| | - Xin Wang
- Key Lab of Aromatic Plant Resources Exploitation and Utilization in Sichuan Higher Education, Yibin University, Yibin, 644000, People's Republic of China
| | - Yujuan Liang
- Key Lab of Aromatic Plant Resources Exploitation and Utilization in Sichuan Higher Education, Yibin University, Yibin, 644000, People's Republic of China
| | - Yonghua Du
- Key Lab of Aromatic Plant Resources Exploitation and Utilization in Sichuan Higher Education, Yibin University, Yibin, 644000, People's Republic of China
| | - Ruizhang Feng
- Key Lab of Aromatic Plant Resources Exploitation and Utilization in Sichuan Higher Education, Yibin University, Yibin, 644000, People's Republic of China
| | - Qin Wei
- Key Lab of Aromatic Plant Resources Exploitation and Utilization in Sichuan Higher Education, Yibin University, Yibin, 644000, People's Republic of China.
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22
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Zhang X, Sun X, Wu J, Wu Y, Wang Y, Hu X, Wang X. Berberine Damages the Cell Surface of Methicillin-Resistant Staphylococcus aureus. Front Microbiol 2020; 11:621. [PMID: 32411101 PMCID: PMC7198732 DOI: 10.3389/fmicb.2020.00621] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Accepted: 03/19/2020] [Indexed: 11/13/2022] Open
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA) is currently regarded as one of the most important drug-resistant pathogens causing nosocomial and community-acquired infections. Although berberine (BER) has shown anti-MRSA activity, the underlying mechanism is still unclear. In this study, the damage caused by BER on the cell surface of MRSA was systematically investigated by performing BER susceptibility test, determining K+ and alkaline phosphatase (ALP) release, detecting morphological alterations using scanning electron microscopy (SEM) and transmission electron microscopy (TEM), and ascertaining lipid profiles. The results showed that the minimum inhibitory concentration (MIC) of BER against MRSA252 was 128 μg/ml. Under the sub-MIC doses of BER, cell membrane permeability gradually increased in a dose-dependent manner, and 1 × MIC led to 43.8% higher K+ leakage and fourfold higher ALP secretion. The injuries on MRSA cell surface were further verified by SEM and TEM, and some cells displayed a doughnut-shaped structure. BER significantly altered the fatty acid species contents, including saturated fatty acids (C14:0, C15:0, C16:0, C18:0, and C20:0), and unsaturated fatty acids (C20:4, C20:1, and C18:1), indicating that BER compromised cell membrane integrity via lipid fluctuation. Thus, the findings of this study could help to unravel the molecular mechanism of BER against MRSA.
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Affiliation(s)
- Xiujuan Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,Key Laboratory of Quality and Standard Research of Traditional Chinese Medicine in Gansu Province, Gansu University of Traditional Chinese Medicine, Lanzhou, China
| | - Xiaoying Sun
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Jiaxin Wu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Yue Wu
- School of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Yali Wang
- Key Laboratory of Quality and Standard Research of Traditional Chinese Medicine in Gansu Province, Gansu University of Traditional Chinese Medicine, Lanzhou, China
| | - Xiaoqing Hu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,Key Laboratory of Quality and Standard Research of Traditional Chinese Medicine in Gansu Province, Gansu University of Traditional Chinese Medicine, Lanzhou, China.,International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, China
| | - Xiaoyuan Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, China
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23
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Kang S, Kong F, Liang X, Li M, Yang N, Cao X, Yang M, Tao D, Yue X, Zheng Y. Label-Free Quantitative Proteomics Reveals the Multitargeted Antibacterial Mechanisms of Lactobionic Acid against Methicillin-Resistant Staphylococcus aureus (MRSA) using SWATH-MS Technology. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:12322-12332. [PMID: 31638792 DOI: 10.1021/acs.jafc.9b06364] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The objective of the present study was to reveal the antibacterial mechanism of lactobionic acid (LBA) against methicillin-resistant Staphylococcus aureus (MRSA) using quantitative proteomics by sequential window acquisition of all theoretical mass spectra (SWATH-MS) to analyze 100 differentially expressed proteins after LBA treatment. Furthermore, multiple experiments were conducted to validate the results of the proteomic analysis including reactive oxygen species (ROS), virulence-associated gene expression, and the relative quantification of target proteins and genes by parallel reaction monitoring and quantitative real-time PCR. Combining the ultrastructure observations, proteomic analysis, and our previous research, the mode of LBA action against MRSA was speculated as cell wall damage and loss of membrane integrity; inhibition of DNA repair and protein synthesis; inhibition of virulence factors and biofilm production; induction of oxidative stress; and inhibition of metabolic pathways. These results suggest potential applications for LBA in food safety and pharmaceuticals, considering its multitarget effects against MRSA.
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Affiliation(s)
- Shimo Kang
- College of Food Science , Shenyang Agricultural University , No. 120 Dongling Road , Shenyang , Liaoning 110161 , P.R. China
| | - Fanhua Kong
- College of Food Science , Shenyang Agricultural University , No. 120 Dongling Road , Shenyang , Liaoning 110161 , P.R. China
| | - Xiaona Liang
- College of Food Science , Shenyang Agricultural University , No. 120 Dongling Road , Shenyang , Liaoning 110161 , P.R. China
| | - Mohan Li
- College of Food Science , Shenyang Agricultural University , No. 120 Dongling Road , Shenyang , Liaoning 110161 , P.R. China
| | - Ning Yang
- College of Food Science , Shenyang Agricultural University , No. 120 Dongling Road , Shenyang , Liaoning 110161 , P.R. China
| | - Xueyan Cao
- College of Food Science , Shenyang Agricultural University , No. 120 Dongling Road , Shenyang , Liaoning 110161 , P.R. China
| | - Mei Yang
- College of Food Science , Shenyang Agricultural University , No. 120 Dongling Road , Shenyang , Liaoning 110161 , P.R. China
| | - Dongbing Tao
- College of Food Science , Shenyang Agricultural University , No. 120 Dongling Road , Shenyang , Liaoning 110161 , P.R. China
| | - Xiqing Yue
- College of Food Science , Shenyang Agricultural University , No. 120 Dongling Road , Shenyang , Liaoning 110161 , P.R. China
| | - Yan Zheng
- College of Food Science , Shenyang Agricultural University , No. 120 Dongling Road , Shenyang , Liaoning 110161 , P.R. China
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24
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Fang S, Zhou Q, Hu Y, Liu F, Mei J, Xie J. Antimicrobial Carvacrol Incorporated in Flaxseed Gum-Sodium Alginate Active Films to Improve the Quality Attributes of Chinese Sea bass (Lateolabrax maculatus) during Cold Storage. Molecules 2019; 24:molecules24183292. [PMID: 31509981 PMCID: PMC6766946 DOI: 10.3390/molecules24183292] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 09/05/2019] [Accepted: 09/05/2019] [Indexed: 01/24/2023] Open
Abstract
The objective of this research was to explore the antimicrobial activity and mechanism of carvacrol against Vibrio Parahemolyticus, Shewanella putrefaciens, Staphylococcus aureus and Pseudomonas fluorescens and evaluate the effect of the addition of carvacrol/β-cyclodextrin emulsions to flaxseed gum (FSG)-sodium alginate (SA) edible films on the preservation of Chinese sea bass (Lateolabrax maculatus) fillets during refrigerated storage. The minimum inhibitory concentration (MIC) of carvacrol against V. parahemolyticus, S. putrefaciens, S. aureus and P. fluorescens were 0.5, 0.5, 0.125, and 0.5 mg/mL, respectively. Alkaline phosphatase activity assay, nucleotide and protein leakage, and scanning electron microscope demonstrated that carvacrol damaged the external structure of the tested bacterial cells causing leakage of cytoplasmic components. At the same time, when FSG-SA films containing carvacrol used as coating agents for Chinese sea bass fillets cold storage, FSG-SA films containing 1.0 or 2.0 mg/mL carvacrol could significantly reduce TVB-N content, K-value, the degree of microbial deterioration and maintain quality of sea bass fillets according to organoleptic evaluation results.
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Affiliation(s)
- Shiyuan Fang
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China.
| | - Qianqian Zhou
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China.
| | - Yan Hu
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China.
| | - Feng Liu
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China.
| | - Jun Mei
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China.
- National Experimental Teaching Demonstration Center for Food Science and Engineering Shanghai Ocean University, Shanghai 201306, China.
- Shanghai Engineering Research Center of Aquatic Product Processing and Preservation, Shanghai 201306, China.
- Shanghai Professional Technology Service Platform on Cold Chain Equipment Performance and Energy Saving Evaluation, Shanghai 201306, China.
| | - Jing Xie
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China.
- National Experimental Teaching Demonstration Center for Food Science and Engineering Shanghai Ocean University, Shanghai 201306, China.
- Shanghai Engineering Research Center of Aquatic Product Processing and Preservation, Shanghai 201306, China.
- Shanghai Professional Technology Service Platform on Cold Chain Equipment Performance and Energy Saving Evaluation, Shanghai 201306, China.
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