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Bai Y, Zhou Y, Chang R, Zhou Y, Hu X, Hu J, Yang C, Chen J, Zhang Z, Yao J. Investigating synergism and mechanism during sequential inactivation of Staphylococcus aureus with ultrasound followed by UV/peracetic acid. JOURNAL OF HAZARDOUS MATERIALS 2024; 462:132609. [PMID: 37844493 DOI: 10.1016/j.jhazmat.2023.132609] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 09/19/2023] [Accepted: 09/20/2023] [Indexed: 10/18/2023]
Abstract
This study explored the inactivation of Staphylococcus aureus (S. aureus) by ultrasound (US) and peracetic acid (PAA) coupling with UV simultaneously (US/PAA/UV) or sequentially (US→PAA/UV) for the strengthened disinfection. The result showed that US→PAA/UV system had excellent inactivation performance with 5.05-log in a short time. Besides US, UV, PAA and free radicals, the contribution of the synergy of all components to the entire disinfection were obvious under US→PAA/UV system. The inactivation performance of S. aureus significantly decreased with the increase of humic acid (HA) concentration and pH; however, the rising temperature contributes to the enhancement of the inactivation efficiency under the US→PAA/UV system. The disinfection mechanism includes a decrease of cell agglomeration, a loss of intracellular substance, and changes of cell structure and membrane permeability, as evidenced through a nanoparticle size analyzer, scanning electron microscope (SEM), transmission electron microscope (TEM) and laser confocal microscopy (LSCM). Furthermore, the inactivation efficiency of the US→PAA/UV system for the total bacteria from actual sewage (the untreated inflow) was high, which reached 3.86-log. In general, the pretreatment of US combined with UV/PAA showed a promising application in the rapid disinfection of sewage.
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Affiliation(s)
- Yun Bai
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China; College of Environment and Ecology, Chongqing University, Chongqing 400045, China
| | - Yuanhang Zhou
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China; College of Environment and Ecology, Chongqing University, Chongqing 400045, China
| | - Ruiting Chang
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China; College of Environment and Ecology, Chongqing University, Chongqing 400045, China
| | - Yingying Zhou
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China; College of Environment and Ecology, Chongqing University, Chongqing 400045, China
| | - Xueli Hu
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China; College of Environment and Ecology, Chongqing University, Chongqing 400045, China
| | - Jiawei Hu
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China; College of Environment and Ecology, Chongqing University, Chongqing 400045, China
| | - Chuanyao Yang
- Analysis and Testing Center, Chongqing University, Chongqing 400045, China
| | - Jiabo Chen
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China; College of Environment and Ecology, Chongqing University, Chongqing 400045, China
| | - Zhi Zhang
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China; College of Environment and Ecology, Chongqing University, Chongqing 400045, China.
| | - Juanjuan Yao
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China; College of Environment and Ecology, Chongqing University, Chongqing 400045, China.
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Monteiro EDS, da Silva FS, Gomes KO, do Prado BA, dos Santos RD, Gomes da Camara CA, de Moraes MM, da Silva ICR, de Macêdo VT, Gelfuso GM, de Sá Barreto LCL, Orsi DC. Characterization and Determination of the Antibacterial Activity of Baccharis dracunculifolia Essential-Oil Nanoemulsions. Antibiotics (Basel) 2023; 12:1677. [PMID: 38136711 PMCID: PMC10740613 DOI: 10.3390/antibiotics12121677] [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: 10/30/2023] [Revised: 11/19/2023] [Accepted: 11/22/2023] [Indexed: 12/24/2023] Open
Abstract
The aim of this study was to evaluate the antibacterial activity of nanoemulsions of Baccharis dracunculifolia essential oil. The volatile compounds of the essential oil were identified using gas chromatography-mass spectrometry. The properties of the nanoemulsions (droplet size, polydispersity index, pH, and electrical conductivity) were determined. The antibacterial activities of the essential oil and its nanoemulsions were evaluated using MIC, MBC, and disk diffusion. The microorganisms used were: Gram-positive bacteria (Staphylococcus aureus ATCC 25923, Bacillus cereus ATCC 14579, Streptococcus mutans ATCC 25175, and Enterococcus faecalis ATCC 29212) and Gram-negative bacteria (Pseudomonas aeruginosa ATCC 27853, Klebsiella pneumoniae ATCC BAA-1706, Salmonella enterica ATCC 14028, and Escherichia coli ATCC 25922). The major volatile compounds of the B. dracunculifolia essential oil were limonene (19.36%), (E)-nerolidol (12.75%), bicyclogermacrene (10.76%), and β-pinene (9.60%). The nanoemulsions had a mean droplet size between 13.14 and 56.84 nm. The nanoemulsions presented lower and statistically significant MIC values compared to the essential oil, indicating enhancement of the bacteriostatic action. The disk diffusion method showed that both the nanoemulsions and the essential oil presented inhibition zones only for Gram-positive bacteria, while there were no results against Gram-negative bacteria, indicating that B. dracunculifolia essential oil has a better antimicrobial effect on Gram-positive microorganisms.
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Affiliation(s)
- Erika da Silva Monteiro
- Laboratory of Quality Control, University of Brasília, Brasília 72220-900, DF, Brazil; (E.d.S.M.); (F.S.d.S.); (K.O.G.); (B.A.d.P.); (R.D.d.S.); (I.C.R.d.S.); (V.T.d.M.)
| | - Franklyn Santos da Silva
- Laboratory of Quality Control, University of Brasília, Brasília 72220-900, DF, Brazil; (E.d.S.M.); (F.S.d.S.); (K.O.G.); (B.A.d.P.); (R.D.d.S.); (I.C.R.d.S.); (V.T.d.M.)
| | - Karolina Oliveira Gomes
- Laboratory of Quality Control, University of Brasília, Brasília 72220-900, DF, Brazil; (E.d.S.M.); (F.S.d.S.); (K.O.G.); (B.A.d.P.); (R.D.d.S.); (I.C.R.d.S.); (V.T.d.M.)
| | - Bruno Alcântara do Prado
- Laboratory of Quality Control, University of Brasília, Brasília 72220-900, DF, Brazil; (E.d.S.M.); (F.S.d.S.); (K.O.G.); (B.A.d.P.); (R.D.d.S.); (I.C.R.d.S.); (V.T.d.M.)
| | - Rebeca Dias dos Santos
- Laboratory of Quality Control, University of Brasília, Brasília 72220-900, DF, Brazil; (E.d.S.M.); (F.S.d.S.); (K.O.G.); (B.A.d.P.); (R.D.d.S.); (I.C.R.d.S.); (V.T.d.M.)
| | | | - Marcilio Martins de Moraes
- Department of Chemistry, Federal Rural University of Pernambuco, Recife 52171-900, PE, Brazil; (C.A.G.d.C.); (M.M.d.M.)
| | - Izabel Cristina Rodrigues da Silva
- Laboratory of Quality Control, University of Brasília, Brasília 72220-900, DF, Brazil; (E.d.S.M.); (F.S.d.S.); (K.O.G.); (B.A.d.P.); (R.D.d.S.); (I.C.R.d.S.); (V.T.d.M.)
| | - Vinicius Teixeira de Macêdo
- Laboratory of Quality Control, University of Brasília, Brasília 72220-900, DF, Brazil; (E.d.S.M.); (F.S.d.S.); (K.O.G.); (B.A.d.P.); (R.D.d.S.); (I.C.R.d.S.); (V.T.d.M.)
| | - Guilherme Martins Gelfuso
- Laboratory of Food, Drugs, and Cosmetics, University of Brasília, Brasília 70910-900, DF, Brazil; (G.M.G.); (L.C.L.d.S.B.)
| | | | - Daniela Castilho Orsi
- Laboratory of Quality Control, University of Brasília, Brasília 72220-900, DF, Brazil; (E.d.S.M.); (F.S.d.S.); (K.O.G.); (B.A.d.P.); (R.D.d.S.); (I.C.R.d.S.); (V.T.d.M.)
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da Silva BD, Rosario DKAD, Conte-Junior CA. Can droplet size influence antibacterial activity in ultrasound-prepared essential oil nanoemulsions? Crit Rev Food Sci Nutr 2023; 63:12567-12577. [PMID: 35900149 DOI: 10.1080/10408398.2022.2103089] [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] [Indexed: 11/03/2022]
Abstract
Essential oil nanoemulsion may have improved antibacterial properties over pure oil and can be used for food preservation. Ultrasonic cavitation is the most common mechanism for producing nanoemulsions, and the impact of processing parameters on droplet properties needs to be elucidated. A systematic literature search was performed in four databases (Science Direct, Web of Science, Scopus and PubMed), and 987 articles were found, 16 of which were eligible for the present study. A meta-analysis was performed to qualitatively assess which process parameters (power, sonication time, essential oil, and tween 80 concentration) can influence the final droplet size and polydispersity and how droplet size is associated with antibacterial activity. We observed that power, essential oil, and tween 80 concentrations added during processing are the critical variables for forming smaller droplets. Ratios of up to 3:1 (surfactant:oil) can produce droplets smaller than 180 nm with antibacterial properties superior to pure oil or isolated compounds. The improved properties of nanoemulsions are associated with the size and chemical composition of the droplet since the proportion of the hydrophobic core (EO) and the hydrophilic outer layer (Tween 80) directly influences the antibacterial mechanism of action.
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Affiliation(s)
- Bruno Dutra da Silva
- Center for Food Analysis (NAL), Technological Development Support Laboratory (LADETEC), Universidade Federal do Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro, RJ, Brazil
- Laboratory of Advanced Analysis in Biochemistry and Molecular Biology (LAABBM), Department of Biochemistry, Universidade Federal do Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro, RJ, Brazil
- Graduate Program in Food Science (PPGCAL), Institute of Chemistry (IQ), Universidade Federal do Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro, RJ, Brazil
| | - Denes Kaic Alves do Rosario
- Center for Food Analysis (NAL), Technological Development Support Laboratory (LADETEC), Universidade Federal do Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro, RJ, Brazil
- Laboratory of Advanced Analysis in Biochemistry and Molecular Biology (LAABBM), Department of Biochemistry, Universidade Federal do Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro, RJ, Brazil
- Department of Food Engineering, Center for Agrarian Sciences and Engineering, Universidade Federal do Espírito Santo (UFES), Alto Universitário, Alegre, ES, Brazil
| | - Carlos Adam Conte-Junior
- Center for Food Analysis (NAL), Technological Development Support Laboratory (LADETEC), Universidade Federal do Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro, RJ, Brazil
- Laboratory of Advanced Analysis in Biochemistry and Molecular Biology (LAABBM), Department of Biochemistry, Universidade Federal do Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro, RJ, Brazil
- Department of Food Engineering, Center for Agrarian Sciences and Engineering, Universidade Federal do Espírito Santo (UFES), Alto Universitário, Alegre, ES, Brazil
- Nanotechnology Network, Carlos Chagas Filho Research Support Foundation of the State of Rio de Janeiro (FAPERJ), Rio de Janeiro, RJ, Brazil
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Zhu Y, Chen T, Feng T, Zhang J, Meng Z, Zhang N, Luo G, Wang Z, Pang Y, Zhou Y. Fabrication and Biological Activities of All-in-One Composite Nanoemulsion Based on Blumea balsamifera Oil-Tea Tree Oil. Molecules 2023; 28:5889. [PMID: 37570859 PMCID: PMC10420664 DOI: 10.3390/molecules28155889] [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: 07/06/2023] [Revised: 07/31/2023] [Accepted: 08/02/2023] [Indexed: 08/13/2023] Open
Abstract
Nanoemulsion is a new multi-component drug delivery system; the selection of different oil phases can give it special physiological activity, and play the role of "medicine and pharmaceutical excipients all-in-one". In this paper, we used glycyrrhizic acid as the natural surfactant, and Blumea balsamifera oil (BB) and tea tree oil (TTO) as the mixed oil phase, to obtain a new green functional composite nanoemulsion. Using the average particle size and polydispersion index (PDI) as the evaluation criteria, the effects of the oil ratio, oil content, glycyrrhizic acid concentration, and ultrasonic time on the nanoemulsion were systematically investigated. The stability and physicochemical properties and biological activities of BB-TTO NEs prepared via the optimum formulation were characterized. The optimal prescription was BB: TTO = 1:1, 5% oil phase, 0.7% glycyrrhizic acid, and 5 min ultrasonication time. The mean particle size, PDI, and zeta potential were 160.01 nm, 0.125, and -50.94 mV, respectively. The nanoemulsion showed non-significant changes in stability after centrifugation, dilution, and 120 days storage. These nanoemulsions were found to exhibit potential antibacterial and anti-inflammatory activities. The minimal inhibitory concentration (MIC) of BB-TTO NEs against Escherichia coli, Staphylococcus aureus, and Pseudomonas aeruginosa is 2975 μg/mL, 2975 μg/mL, and 5950 μg/mL, respectively. A lower level of inflammatory cell infiltration and proportion of fibrosis were found in the synovial tissue of AIA rats treated with BB-TTO NEs. These findings demonstrate that the BB-TTO NEs produced in this study have significant potential for usage in antibacterial and anti-inflammatory areas.
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Affiliation(s)
- Yue Zhu
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Meidicine, Guiyang 550025, China
- Nano-Drug Technology Research Center, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Teng Chen
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Meidicine, Guiyang 550025, China
- Nano-Drug Technology Research Center, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Tingting Feng
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Meidicine, Guiyang 550025, China
| | - Jiaojiao Zhang
- College of Food and Health, Zhejiang A&F University, Hangzhou 311300, China
| | - Zejing Meng
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Meidicine, Guiyang 550025, China
| | - Ning Zhang
- School of Acupuncture-Moxibustion and Tuina, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Gang Luo
- Key Laboratory of Medical Microbiology and Parasitology, Key Laboratory of Environmental Pollution Monitoringand Disease Control, Ministry of Education, School of Basic Medical Sciences, Guizhou Medical University, Guiyang 550025, China
| | - Zuhua Wang
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Meidicine, Guiyang 550025, China
- Nano-Drug Technology Research Center, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Yuxin Pang
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Meidicine, Guiyang 550025, China
| | - Ying Zhou
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Meidicine, Guiyang 550025, China
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Improvement of Physicochemical and Antibacterial Properties of Nanoemulsified Origanum vulgare Essential Oil Through Optimization of Ultrasound Processing Variables. FOOD BIOPROCESS TECH 2023. [DOI: 10.1007/s11947-023-03050-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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Wei X, Chen X, Wang L, Wei X, Yang Y, Liang J, Liang J. Measurement and Correlation of Isothermal Vapor–Liquid Equilibrium Data for (−)-α-Pinene + (−)-β-Pinene + Water + Phenoxyacetic Acid. Ind Eng Chem Res 2023. [DOI: 10.1021/acs.iecr.2c03824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Affiliation(s)
- Xuejuan Wei
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P.R. China
| | - Xiaopeng Chen
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P.R. China
| | - Linlin Wang
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P.R. China
| | - Xiaojie Wei
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P.R. China
| | - Yang Yang
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P.R. China
| | - Jiaqi Liang
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P.R. China
| | - Jiezhen Liang
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P.R. China
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Kević Dešić S, Viljetić B, Wagner J. Assessment of the Genotoxic and Cytotoxic Effects of Turpentine in Painters. Life (Basel) 2023; 13:life13020530. [PMID: 36836885 PMCID: PMC9966049 DOI: 10.3390/life13020530] [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: 01/11/2023] [Revised: 02/03/2023] [Accepted: 02/13/2023] [Indexed: 02/17/2023] Open
Abstract
Turpentine is a fluid used mainly as a solvent for thinning oil-based paints, obtained by distilling the resin of coniferous trees. Fine art painters use turpentine on a daily basis. The aim of this study was to investigate the genotoxic effect of turpentine and to determine the lymphocyte proliferation index in the peripheral blood of individuals occupationally exposed to turpentine. For this purpose, the cytokinesis-block micronucleus assay (CBMN) was used to determine the total number of micronuclei (MNi), nucleoplasmic bridges (NPB), and nuclear buds (NBUD), as well as the cell proliferation index (CBPI) in the peripheral blood lymphocytes of the subjects. Twenty-two subjects exposed to turpentine daily through their work participated in the study and were compared to twenty subjects in the control group. The results showed a significant increase in the number of micronuclei and other genotoxicity parameters, as well as significant cytotoxicity based on CBPI values. In addition, the genotoxic and cytotoxic effects of turpentine were found to be time-dependent, i.e., the deleterious effects of turpentine on genetic material increase with prolonged exposure. These results strongly suggest that exposure to turpentine vapors may affect genome stability and that occupational safety measures should be taken when using turpentine.
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Affiliation(s)
- Sara Kević Dešić
- Department of Medical Biology and Genetics, Faculty of Medicine, Josip Juraj Strossmayer University, 31000 Osijek, Croatia
| | - Barbara Viljetić
- Department of Medical Chemistry, Biochemistry and Clinical Chemistry, Faculty of Medicine, Josip Juraj Strossmayer University, 31000 Osijek, Croatia
- Correspondence: (B.V.); (J.W.)
| | - Jasenka Wagner
- Department of Medical Biology and Genetics, Faculty of Medicine, Josip Juraj Strossmayer University, 31000 Osijek, Croatia
- Correspondence: (B.V.); (J.W.)
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