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Islam Z, Caldeira GI, Caniça M, Islam N, Silva O. Vitex Genus as a Source of Antimicrobial Agents. PLANTS (BASEL, SWITZERLAND) 2024; 13:401. [PMID: 38337934 PMCID: PMC10857077 DOI: 10.3390/plants13030401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 01/16/2024] [Accepted: 01/24/2024] [Indexed: 02/12/2024]
Abstract
Vitex L. is the largest genus of the Lamiaceae family, and most of its species are used in the traditional medicinal systems of different countries. A systematic review was conducted, according to the PRISMA methodology, to determine the potential of Vitex plants as sources of antimicrobial agents, resulting in 2610 scientific publications from which 141 articles were selected. Data analysis confirmed that Vitex species are used in traditional medicine for symptoms of possible infectious diseases. Conducted studies showed that these medicinal plants exhibited in vitro antimicrobial activity against Bacillus subtilis, Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, and Staphylococcus aureus. Vitex agnus-castus L. and Vitex negundo L. have been the most studied species, not only against bacterial strains but also against fungi such as Aspergillus niger and Candida albicans, viruses such as HIV-1, and parasites such as Plasmodium falciparum. Natural products like agnucastoside, negundol, negundoside, and vitegnoside have been identified in Vitex extracts and their antimicrobial activity against a wide range of microbial strains has been determined. Negundoside showed significant antimicrobial activity against Staphylococcus aureus (MIC 12.5 µg/mL). Our results show that Vitex species are potential sources of new natural antimicrobial agents. However, further experimental studies need to be conducted.
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Affiliation(s)
- Zohorul Islam
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, University of Lisbon, 1649-003 Lisbon, Portugal; (Z.I.); (G.I.C.)
| | - Gonçalo I. Caldeira
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, University of Lisbon, 1649-003 Lisbon, Portugal; (Z.I.); (G.I.C.)
| | - Manuela Caniça
- National Reference for Laboratory of Antibiotic Research and Healthcare-Associated Infections, Department of Infectious Diseases, National Institute of Health Dr. Ricardo Jorge, 1649-016 Lisbon, Portugal;
| | - Nurul Islam
- Department of Zoology, Faculty of Biological Sciences, University of Rajshahi, Rajshahi 6250, Bangladesh;
| | - Olga Silva
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, University of Lisbon, 1649-003 Lisbon, Portugal; (Z.I.); (G.I.C.)
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Zhao Y, Wang ZJ, Wang CB, Tan BY, Luo XD. New and Antifungal Diterpenoids of Sunflower against Gray Mold. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:16647-16656. [PMID: 37877578 DOI: 10.1021/acs.jafc.3c05553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2023]
Abstract
Sunflower (Helianthus annuus L.) is cultivated around the world as an oil crop, and its receptacle is the byproduct and is usually deemed to be an agro-industrial waste. Then, phytochemical constituents and antifungal bioactivity of the sunflower receptacle against phytopathogenic fungi were investigated. As a result, 17 diterpenoids including 4 new compounds were isolated, and most of them showed potential antifungal activity against Botrytis cinerea, in which compounds 1, 3, 5, and 15 exhibited better inhibitory effect with the minimum inhibitory concentration values of 0.05-0.1 mg/mL. Meanwhile, four antifungal diterpenoids destructed plasma membrane integrity, suspended the biofilm formation ability, and increased the extravasation of cellular contents of B. cinerea. Moreover, the EtOAc extract of sunflower receptacle could keep 42.9% of blueberries from the invasion of B. cinerea at 1.6 mg/mL. The finding suggested that sunflower receptacle might be a biocontrol agent for preventing fruit from postharvest diseases.
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Affiliation(s)
- Yun Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Zi-Jiao Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Chang-Bin Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Bang-Yin Tan
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, Yunnan Characteristic Plant Extraction Laboratory, School of Chemical Science and Technology, Yunnan University, Kunming 650500, P. R. China
| | - Xiao-Dong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, Yunnan Characteristic Plant Extraction Laboratory, School of Chemical Science and Technology, Yunnan University, Kunming 650500, P. R. China
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Silva E, Teixeira JA, Pereira MO, Rocha CMR, Sousa AM. Evolving biofilm inhibition and eradication in clinical settings through plant-based antibiofilm agents. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 119:154973. [PMID: 37499434 DOI: 10.1016/j.phymed.2023.154973] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 07/05/2023] [Accepted: 07/15/2023] [Indexed: 07/29/2023]
Abstract
BACKGROUND After almost 100 years since evidence of biofilm mode of growth and decades of intensive investigation about their formation, regulatory pathways and mechanisms of antimicrobial tolerance, nowadays there are still no therapeutic solutions to eradicate bacterial biofilms and their biomedical related issues. PURPOSE This review intends to provide a comprehensive summary of the recent and most relevant published studies on plant-based products, or their isolated compounds with antibiofilm activity mechanisms of action or identified molecular targets against bacterial biofilms. The objective is to offer a new perspective of most recent data for clinical researchers aiming to prevent or eliminate biofilm-associated infections caused by bacterial pathogens. METHODS The search was performed considering original research articles published on PubMed, Web of Science and Scopus from 2015 to April 2023, using keywords such as "antibiofilm", "antivirulence", "phytochemicals" and "plant extracts". RESULTS Over 180 articles were considered for this review with a focus on the priority human pathogens listed by World Health Organization, including Pseudomonas aeruginosa, Staphylococcus aureus, Klebsiella pneumoniae and Escherichia coli. Inhibition and detachment or dismantling of biofilms formed by these pathogens were found using plant-based extract/products or derivative compounds. Although combination of plant-based products and antibiotics were recorded and discussed, this topic is currently poorly explored and only for a reduced number of bacterial species. CONCLUSIONS This review clearly demonstrates that plant-based products or derivative compounds may be a promising therapeutic strategy to eliminate bacterial biofilms and their associated infections. After thoroughly reviewing the vast amount of research carried out over years, it was concluded that plant-based products are mostly able to prevent biofilm formation through inhibition of quorum sensing signals, but also to disrupt mature biofilms developed by multidrug resistant bacteria targeting the biofilm extracellular polymeric substance. Flavonoids and phenolic compounds seemed the most effective against bacterial biofilms.
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Affiliation(s)
- Eduarda Silva
- Centre of Biological Engineering, LIBRO - Laboratório de Investigação em Biofilmes Rosário Oliveira, University of Minho, Campus de Gualtar, Braga 4710-057, Portugal
| | - José A Teixeira
- Centre of Biological Engineering, LIBRO - Laboratório de Investigação em Biofilmes Rosário Oliveira, University of Minho, Campus de Gualtar, Braga 4710-057, Portugal; LABBELS - Associate Laboratory, Guimarães, Braga, Portugal
| | - Maria Olivia Pereira
- Centre of Biological Engineering, LIBRO - Laboratório de Investigação em Biofilmes Rosário Oliveira, University of Minho, Campus de Gualtar, Braga 4710-057, Portugal; LABBELS - Associate Laboratory, Guimarães, Braga, Portugal
| | - Cristina M R Rocha
- Centre of Biological Engineering, LIBRO - Laboratório de Investigação em Biofilmes Rosário Oliveira, University of Minho, Campus de Gualtar, Braga 4710-057, Portugal; LABBELS - Associate Laboratory, Guimarães, Braga, Portugal
| | - Ana Margarida Sousa
- Centre of Biological Engineering, LIBRO - Laboratório de Investigação em Biofilmes Rosário Oliveira, University of Minho, Campus de Gualtar, Braga 4710-057, Portugal; LABBELS - Associate Laboratory, Guimarães, Braga, Portugal.
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Bakó C, Balázs VL, Kerekes E, Kocsis B, Nagy DU, Szabó P, Micalizzi G, Mondello L, Krisch J, Pethő D, Horváth G. Flowering phenophases influence the antibacterial and anti-biofilm effects of Thymus vulgaris L. essential oil. BMC Complement Med Ther 2023; 23:168. [PMID: 37226152 DOI: 10.1186/s12906-023-03966-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 04/19/2023] [Indexed: 05/26/2023] Open
Abstract
BACKGROUND Essential oils are becoming increasingly popular in medicinal applications because of their antimicrobial effect. Thymus vulgaris L. (Lamiaceae) is a well-known and widely cultivated medicinal plant, which is used as a remedy for cold, cough and gastrointestinal symptoms. Essential oil content of thyme is responsible for its antimicrobial activity, however, it has been reported that the chemical composition of essential oils influences its biological activity. In order to explore flowering phenophases influence on the chemical composition of thyme essential oil and its antibacterial and anti-biofilm activity, plant materials were collected at the beginning of flowering, in full bloom and at the end of flowering periods in 2019. METHODS Essential oils from fresh and dried plant materials were distilled and analyzed with gas chromatography-mass spectrometry (GC-MS) and gas chromatography-flame ionization detection (GC-FID). The antibacterial activity was performed by broth microdilution and thin layer chromatography-direct bioautography (TLC-DB) assays and the anti-biofilm effect by crystal violet assay, respectively. Scanning electron microscopy was applied to illustrate the cellular changes of bacterial cells after essential oil treatment. RESULTS Thymol (52.33-62.46%) was the main component in the thyme essential oils. Thyme oil distilled from fresh plant material and collected at the beginning of flowering period exerted the highest antibacterial and anti-biofilm activity against Haemophilus influenzae, H. parainfluenzae and Pseudomonas aeruginosa. CONCLUSION The different flowering periods of Thymus vulgaris influence the antibacterial and anti-biofilm activity of its essential oils, therefore, the collection time has to be taken into consideration and not only the full bloom, but the beginning of flowering period may provide biological active thyme essential oil.
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Affiliation(s)
- Csongor Bakó
- Department of Pharmacognosy, Faculty of Pharmacy, University of Pécs, Pécs, H-7624, Hungary
| | - Viktória Lilla Balázs
- Department of Pharmacognosy, Faculty of Pharmacy, University of Pécs, Pécs, H-7624, Hungary
| | - Erika Kerekes
- Department of Microbiology, Faculty of Science and Informatics, University of Szeged, Szeged, H-6726, Hungary
| | - Béla Kocsis
- Department of Medical Microbiology and Immunology, Medical School, University of Pécs, Pécs, H-7624, Hungary
| | - Dávid U Nagy
- Institute of Geobotany and Plant Ecology, Martin-Luther University, D-06108, Halle, Germany
| | - Péter Szabó
- Institute of Geography and Earth Sciences, Faculty of Sciences, University of Pécs, Pécs, H-7624, Hungary
| | - Giuseppe Micalizzi
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, 98168, Italy
| | - Luigi Mondello
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, 98168, Italy
- Chromaleont s.r.l., c/o Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, 98168, Italy
- Unit of Food Science and Nutrition, Department of Medicine, University Campus Bio-Medico of Rome, Rome, 00128, Italy
| | - Judit Krisch
- Department of Food Engineering, Faculty of Engineering, University of Szeged, Szeged, H-6724, Hungary
| | - Dóra Pethő
- Department of MOL Hydrocarbon and Coal Processing, University of Pannonia, Veszprém, H-8200, Hungary
| | - Györgyi Horváth
- Department of Pharmacognosy, Faculty of Pharmacy, University of Pécs, Pécs, H-7624, Hungary.
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Loaiza-Oliva M, Arias-Durango L, Martínez-Pabón MC. The Cytotoxic and Inhibitory Effects of Plant Derivatives on Candida albicans Biofilms: A Scoping Review. MOLECULES (BASEL, SWITZERLAND) 2022; 28:molecules28010130. [PMID: 36615324 PMCID: PMC9822484 DOI: 10.3390/molecules28010130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 12/12/2022] [Accepted: 12/19/2022] [Indexed: 12/29/2022]
Abstract
Candida albicans infections are related to biofilm formation. The increase in antifungal resistance and their adverse effects have led to the search for therapeutic options as plant derivatives. This scoping review aims to identify the current status of in vitro research on the cytotoxicity and inhibitory effects of plant derivatives on C. albicans biofilms. In this study, PRISMA items were followed. After recognition of the inclusion criteria, full texts were read and disagreements were resolved with a third party. A risk of bias assessment was performed, and information was summarized using Microsoft Office Excel. Thirty-nine papers fulfilling the selection criteria were included. The risk of bias analysis identified most of the studies as low risk. Studies evaluated plant derivatives such as extracts, essential oils, terpenes, alkaloids, flavonoids and polyphenols. Some studies evaluated the inhibition of C. albicans biofilm formation, inhibition on preformed biofilms or both. The derivatives at concentrations greater than or equal to those that have an inhibitory effect on C. albicans biofilms, without showing cytotoxicity, include magnoflorin, ellagic acid, myricetin and eucarobustol from Eucalyptus robusta and, as the works in which these derivatives were studied are of good quality, it is desirable to carry out study in other experimental phases, with methodologies that generate comparable information.
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Malveira EA, Souza PFN, Neto NAS, Aguiar TKB, Rodrigues NS, Henrique CWB, Silva AFB, Lima LB, Albuquerque CC, Freitas CDT. Essential Oil from Croton blanchetianus Leaves: Anticandidal Potential and Mechanisms of Action. J Fungi (Basel) 2022; 8:1147. [PMID: 36354914 PMCID: PMC9693873 DOI: 10.3390/jof8111147] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 10/26/2022] [Accepted: 10/27/2022] [Indexed: 07/29/2023] Open
Abstract
Antimicrobial drugs are becoming ineffective given the resistance acquired by microorganisms. As such, it is imperative to seek new antimicrobial molecules that could provide a basis for the development of new drugs. Therefore, this work aimed to evaluate the antimicrobial potential and the mechanisms of action of the essential oil extracted from leaves of Croton blanchetianus (named CbEO) on different fungi and bacteria of clinical importance in both planktonic and biofilm lifestyles. GC-MS/MS analysis revealed the presence of twenty-two different compounds in the CbEO, which were identified using the Kovats retention index. Among these, the most abundant were amorphene (20.03%), spathulenol (5%), bicyclogermacrene (1.49%), caryophyllene oxide (4.55%), and eucalyptol (5.62%). CbOE (50 µg mL-1) barely inhibited the growth of Bacillus subtilis (23%), Pseudomonas aeruginosa (27%), and Salmonella enterica (28%), and no inhibition was obtained against Enterobacter aerogenes and Klebsiella pneumoniae. Additionally, no activity against bacterial biofilm was detected. In contrast, CbEO was active against Candida species. C. albicans and C. parapsilosis were inhibited by 78 and 75%, respectively. The antibiofilm potential also was favorable against C. albicans and C. parapsilosis, inhibiting 44 and 74% of biofilm formation and reducing around 41 and 27% of the preformed biofilm, respectively. CbOE caused membrane damage and pore formation, overproduction of ROS, and apoptosis on C. albicans and C. parapsilosis cells, as well as not inducing hemolysis in human red cells. The results obtained in this work raise the possibility of using the essential oil of C. blanchetianus leaves as an alternative to fight infections caused by C. albicans and C. parapsilosis.
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Affiliation(s)
- Ellen A. Malveira
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza 60020-181, Brazil
| | - Pedro F. N. Souza
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza 60020-181, Brazil
- Drug Research and Development Center, Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza 60430-160, Brazil
| | - Nilton A. S. Neto
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza 60020-181, Brazil
| | - Tawanny K. B. Aguiar
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza 60020-181, Brazil
| | - Natanael S. Rodrigues
- Department of Biological Sciences, Faculty of Exact and Natural Sciences, State University of Rio Grande do Norte, Mossoró 59650-000, Brazil
| | - Carlos W. B. Henrique
- Department of Biological Sciences, Faculty of Exact and Natural Sciences, State University of Rio Grande do Norte, Mossoró 59650-000, Brazil
| | - Ayrles F. B. Silva
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza 60020-181, Brazil
| | - Leandro B. Lima
- Department of Chemistry, Faculty of Exact and Natural Sciences, State University of Rio Grande do Norte, Mossoró 59650-000, Brazil
| | - Cynthia C. Albuquerque
- Department of Biological Sciences, Faculty of Exact and Natural Sciences, State University of Rio Grande do Norte, Mossoró 59650-000, Brazil
| | - Cleverson D. T. Freitas
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza 60020-181, Brazil
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Investigation of the Composition, Antimicrobial, Antioxidant, and Cytotoxicity Properties of Salvia abrotanoides Essential Oil. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:9304977. [PMID: 36276862 PMCID: PMC9586739 DOI: 10.1155/2022/9304977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 09/01/2022] [Accepted: 09/25/2022] [Indexed: 11/06/2022]
Abstract
Medicinal plants present promising attributes in traditional medicine based on earlier published documents. Most of the essential oils derived from vascular plants display a significant role in dealing with microbial and inflammation infections. This research aimed to provide informative knowledge about the composition, antimicrobial, and anticytotoxicity of Salvia abrotanoides essential oil. In this study, the chemical composition of S. abrotanoides was determined using FTIR and GC-MS analysis which demonstrated the significant number of monoterpenes in the constitutes. The antimicrobial activity of EO demonstrated a dose-related effect on several pathogenic bacteria and fungi; among bacteria, Gram-positive bacteria exhibited more sensitivity to the essential oil antimicrobial compounds. On the other hand, S. abrotanoides essential oil did not present antifungal activity as high as Fluconazole on Aspergillus niger and Candida albicans. The total phenolic and flavonoid content of essential oil were determined as 14.70 ± 1.4 mg·GA/g essential oil and 2.93 ± 0.41 mg Q/g essential oil, respectively. The antioxidant activity of essential oils was investigated, and it was not as high as positive controls. Moreover, the microscopic changes of S. aureus and E. coli were investigated using SEM images. The cytotoxicity potential of essential oil was evaluated on L929 and A459 cell lines and also it was estimated to be stronger on A459 cell line than that of L929.
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Arya S, Kumar R, Prakash O, Kumar S, Mahawer SK, Chamoli S, Kumar P, Srivastava RM, de Oliveira MS. Chemical Composition and Biological Activities of Hedychium coccineum Buch.-Ham. ex Sm. Essential Oils from Kumaun Hills of Uttarakhand. Molecules 2022; 27:molecules27154833. [PMID: 35956784 PMCID: PMC9369524 DOI: 10.3390/molecules27154833] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 07/20/2022] [Accepted: 07/25/2022] [Indexed: 01/06/2023] Open
Abstract
Hedychium coccineum Buch. Ham. ex Sm. is a perennial rhizomatous herb belonging to the family Zingiberaceae. The aim of the present study was to compare the chemical composition and biological activities of H. coccineum rhizome essential oil (HCCRO) and H. coccineum aerial part essential oil (HCCAO). The plant material was subjected to hydro-distillation using Clevenger’s apparatus in order to obtain volatile oil and analyzed for its chemical constituents using GC-MS. The comparative study of the rhizome and aerial part essential oils of H. coccineum displayed that (E)-nerolidol (15.9%), bornyl acetate (13.95%), davanone B (10.9%), spathulenol (8.9%), and 1, 8-cineol (8.5%) contributed majorly to the HCCRO, while 7-hydroxyfarnesen (15.5%), α-farnesene (11.1%), α-pinene (10.9%), spathulenol (7.7%), and β-pinene (6.8%) were present as major constituents in the HCCAO. Both the essential oils were studied for their biological activities, such as nematicidal, insecticidal, herbicidal, antifungal, and antibacterial activities. The essential oils exhibited significant nematicidal activity against Meloidogyne incognita, insecticidal activity against Spodoptera litura, and moderate herbicidal activity against R. raphanistrum sub sp. sativus, and good antifungal activity against Fusarium oxysporum and Curvularialunata. Essential oils were also tested for antibacterial activity against Staphylococcus aureus and Salmonella enterica serotype Typhi. Both oils showed good to moderate activity against the tested pathogens. The significant nematicidal, insecticidal, herbicidal, antifungal, and antibacterial activities of both the essential oils might be helpful for the development of environmentally friendly pesticides that could be an alternative to synthetic pesticides in the future.
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Affiliation(s)
- Sushila Arya
- Department of Chemistry, College of Basic Science and Humanities, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar 263145, Udham Singh Nagar, Uttarakhand, India; (S.A.); (O.P.); (S.K.M.)
| | - Ravendra Kumar
- Department of Chemistry, College of Basic Science and Humanities, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar 263145, Udham Singh Nagar, Uttarakhand, India; (S.A.); (O.P.); (S.K.M.)
- Correspondence: (R.K.); (M.S.d.O.)
| | - Om Prakash
- Department of Chemistry, College of Basic Science and Humanities, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar 263145, Udham Singh Nagar, Uttarakhand, India; (S.A.); (O.P.); (S.K.M.)
| | - Satya Kumar
- Department of Plant Pathology, College of Agriculture, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar 263145, Udham Singh Nagar, Uttarakhand, India;
| | - Sonu Kumar Mahawer
- Department of Chemistry, College of Basic Science and Humanities, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar 263145, Udham Singh Nagar, Uttarakhand, India; (S.A.); (O.P.); (S.K.M.)
| | - Shivangi Chamoli
- Department of Biomedical Sciences, Vocational Studies and Skill Development, Central University of Haryana, Jant-Pali 123031, Mahendergarh, Haryana, India;
| | - Piyush Kumar
- School of Health Sciences and Technology, University of Petroleum and Energy Studies, Bidholi 248007, Dehradun, Uttarakhand, India;
| | - Ravi Mohan Srivastava
- Department of Entomology, College of Agriculture, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar 263145, Udham Singh Nagar, Uttarakhand, India;
| | - Mozaniel Santana de Oliveira
- Campus de Pesquisa-Museu Paraense Emilio Goeldi-Botany Coordination, Av. Perimetral, 19001-Terra Firme, 66077-830 Belem-PA, Brazil
- Correspondence: (R.K.); (M.S.d.O.)
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Mojoodi M, Nourani M. Mung bean protein films incorporated with cumin essential oil: development and characterization. INT POLYM PROC 2022. [DOI: 10.1515/ipp-2021-4213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Biodegradable films based on mung bean protein (1, 3 and 5%) incorporated with cumin essential oil (EO) (0, 0.25 and 0.5 ml/g protein) were developed. Adding cumin oil and increasing the protein content enhanced the thickness, tensile strength and yellowness. Films incorporated with EO exhibited less water vapor permeability and water solubility, as compared to the control films. A higher antioxidant activity was also obtained by increasing the EO and protein ratios. Films with higher levels of protein displayed lower thermal stability with a lower degradation temperature, as suggested by thermo-gravimetric analyses. In addition, the incorporation of EO reduced thermal stability, as confirmed by the higher weight loss and lower degradation temperature. Furthermore, mung bean protein films containing 0.5 ml cumin oil/g protein had suitable physical characteristics, antioxidant activities, water barrier properties and thermal stability; thus, they can be used as appropriate biodegradable packaging materials for food preservation.
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Affiliation(s)
- Majid Mojoodi
- Department of Food Science and Technology , Isfahan (Khorasgan) Branch, Islamic Azad University , Isfahan , Iran
| | - Moloud Nourani
- Department of Food Science and Technology , Isfahan (Khorasgan) Branch, Islamic Azad University , Isfahan , Iran
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de Souza WFC, de Lucena FA, de Castro RJS, de Oliveira CP, Quirino MR, Martins LP. Exploiting the chemical composition of essential oils from Psidium cattleianum and Psidium guajava and its antimicrobial and antioxidant properties. J Food Sci 2021; 86:4637-4649. [PMID: 34486118 DOI: 10.1111/1750-3841.15889] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 07/02/2021] [Accepted: 07/27/2021] [Indexed: 11/26/2022]
Abstract
The genus Psidium comprises several native Brazilian plants, such as the araçá and guava trees. They are interesting sources of essential oils (EOs) that can be used as natural preservatives in foods due to their bioactive properties. This work aimed to evaluate and correlate the biological properties of the EOs from araçá and guava leaves with their chemical compounds. The gas chromatography-mass spectrometry (GC/MS) was used to determine the chemical composition of EOs. The antimicrobial activity was tested against 16 foodborne pathogens and the antioxidant capacity was determined by ABTS, DPPH, and FRAP assays. The major compounds identified in the essential oil of araçá (EOA) were β-caryophyllene and β-elemene, representing 38.69% and 7.47%, respectively, whereas β-selinene (13.83%), α-humulene (10.90%), and β-caryophyllene (7.61%) were the major compounds identified in the essential oil of guava (EOG). Both EOs showed activity against Salmonella Enteritidis, with MIC being 1.41 µg/ml for the EOA and 1.37 µg/ml for the EOG. The EOA was more effective than the EOG against strains of Listeria monocytogenes and Pseudomonas aeruginosa, with the MIC being 1.41 µg/ml. The EOA showed 10.43, 12.35, and 3.92 µmol TE/ml at 90 µg/ml whereas the EOG showed 4.54, 8.94, and 3.43 µmol TE/ml at 88 µg/ml for ABTS, DPPH, and FRAP, respectively. Thus, the EOs demonstrated an effective action against foodborne pathogens and free radicals, indicative of their potential use as natural preservatives for foods. PRACTICAL APPLICATION: Guava and araçá are native Brazilian plants producers of essential oils, natural compounds with antimicrobial and antioxidant potential. The chemical composition of essential oils is responsible for its beneficial properties. The results demonstrated that the essential oils studied are rich in β-caryophyllene and has excellent activity against malefic microorganisms and free radicals, and can also be used as natural preservatives in foods.
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Affiliation(s)
| | - Fernando Azevedo de Lucena
- Department of Agroindustrial Management and Technology, Federal University of Paraíba, Bananeiras, Paraíba, Brazil
| | | | - Cybelle Pereira de Oliveira
- Department of Agroindustrial Management and Technology, Federal University of Paraíba, Bananeiras, Paraíba, Brazil
| | - Max Rocha Quirino
- Department of Basic and Social Sciences, Federal University of Paraíba, Bananeiras, Paraíba, Brazil
| | - Laésio Pereira Martins
- Department of Agroindustrial Management and Technology, Federal University of Paraíba, Bananeiras, Paraíba, Brazil
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11
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do Vale JPC, Vasconcelos MA, Arruda FVS, Firmino NCS, Pereira AL, Andrade AL, Saker-Sampaio S, Sampaio AH, Marinho ES, Teixeira AMR, Marinho MM, Rodrigues THS, Teixeira EH, Dos Santos HS. Evaluation of Antimicrobial and Antioxidant Potential of Essential Oil from Croton piauhiensis Müll. Arg. Curr Microbiol 2021; 78:1926-1938. [PMID: 33782740 DOI: 10.1007/s00284-021-02449-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Accepted: 03/10/2021] [Indexed: 01/19/2023]
Abstract
A large number of infections are caused by Gram-positive and Gram-negative multi-resistant bacteria worldwide, adding up to a figure of around 700,000 deaths per year. The indiscriminate uses of antibiotics, as well as their misuse, resulted in the selection of bacteria resistant to known antibiotics, for which it has little or no treatment. In this way, the strategies to combat the resistance of microorganisms are extremely important and, essential oils of Croton species have been extensively studied for this purpose. The aim of this study was to carry the evaluation of antibacterial, antibiofilm, antioxidant activities, and spectroscopic investigation of essential oil from Croton piauhiensis (EOCp). The EOCp exhibited antimicrobial activity against Gram-positive and Gram-negative bacteria with required MICs ranging from 0.15 to 5% (v/v). In addition, the MBC of the EOCp for Staphylococcus aureus ATCC 25923 and ATCC 700698, were 0.15 and 1.25%, respectively. Moreover, the EOCp significantly reduced significantly the biofilm production and the number of viable cells from the biofilm of all bacterial strains tested. The antioxidant potential of the EOCp showed EC50 values ranging from 171.21 to 4623.83 μg/mL. The EOCp caused hemolysis (>45%) at the higher concentrations tested (1.25 to 5%), and minor hemolysis (17.6%) at a concentration of 0.07%. In addition, docking studies indicated D-limonene as a phytochemical with potential for antimicrobial activity. This study indicated that the EOCp may be a potential agent against infections caused by bacterial biofilms, and act as a protective agent against ROS and oxidative stress.
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Affiliation(s)
- Jean Parcelli Costa do Vale
- Laboratório Integrado de Biomoléculas (LIBS), Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil.,Centro de Ciências Exatas e Tecnologia, Universidade Estadual Vale do Acaraú, Sobral, Ceará, Brazil.,Programa de Pós-Graduação Ciências NaturaisCentro de Ciências E Tecnologia, Universidade Estadual Do Ceará, Fortaleza, Ceará, Brazil
| | - Mayron Alves Vasconcelos
- Laboratório Integrado de Biomoléculas (LIBS), Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil.,Universidade do Estado de Minas Gerais, Unidade de Divinópolis, Divinópolis, Minas Gerais, Brazil.,Departamento de Ciências Biológicas, Faculdade de Ciências Exatas e Naturais, Universidade do Estado do Rio Grande do Norte, Rio Grande do Norte, Mossoró, Brasil
| | - Francisco Vassiliepe Sousa Arruda
- Laboratório Integrado de Biomoléculas (LIBS), Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil.,Centro Universitário Inta - Uninta, Sobral, Ceará, Brazil
| | - Nairley Cardoso Sá Firmino
- Laboratório Integrado de Biomoléculas (LIBS), Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil.,Centro Universitário Inta - Uninta, Sobral, Ceará, Brazil
| | - Anna Luísa Pereira
- Laboratório Integrado de Biomoléculas (LIBS), Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | - Alexandre Lopes Andrade
- Laboratório Integrado de Biomoléculas (LIBS), Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | - Silvana Saker-Sampaio
- Laboratório de Produtos Naturais Marinhos, Departamento de Engenharia de Pesca, Marine Natural, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | - Alexandre Holanda Sampaio
- Laboratório de Biotecnologia Marinha, Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | - Emmanuel Silva Marinho
- Faculdade de Filosofia Dom Aureliano Matos, Universidade Estadual do Ceará, Limoeiro do Norte, Ceará, Brazil
| | | | - Márcia Machado Marinho
- Faculdade de Educação, Ciência E Letras de Iguatu, Universidade Estadual do Ceará, Iguatu, Ceará, Brazil
| | | | - Edson Holanda Teixeira
- Laboratório Integrado de Biomoléculas (LIBS), Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | - Hélcio Silva Dos Santos
- Laboratório Integrado de Biomoléculas (LIBS), Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil. .,Centro de Ciências Exatas e Tecnologia, Universidade Estadual Vale do Acaraú, Sobral, Ceará, Brazil. .,Programa de Pós-Graduação Ciências NaturaisCentro de Ciências E Tecnologia, Universidade Estadual Do Ceará, Fortaleza, Ceará, Brazil.
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12
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Souza AG, Ferreira RR, Paula LC, Mitra SK, Rosa DS. Starch-based films enriched with nanocellulose-stabilized Pickering emulsions containing different essential oils for possible applications in food packaging. Food Packag Shelf Life 2021. [DOI: 10.1016/j.fpsl.2020.100615] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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13
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Bai X, Liu L, Zhang J, Chen L, Wu T, Aisa HA, Maiwulanjiang M. Spectrum-effect relationship between GC-QTOF-MS fingerprint and antioxidant, anti-inflammatory activities of Schizonepeta tenuifolia essential oil. Biomed Chromatogr 2021; 35:e5106. [PMID: 33638568 DOI: 10.1002/bmc.5106] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 02/18/2021] [Accepted: 02/22/2021] [Indexed: 12/13/2022]
Abstract
Schizonepeta tenuifolia (Benth.) Briq, a traditional Chinese medicine, is an annual herbaceous plant that is widely distributed in China, Japan, and Korea. The essential oil (EO) of S. tenuifolia has antioxidant and anti-inflammatory properties. However, the components contributing to its antioxidant and anti-inflammatory activities remain unclear. This study was aimed at investigating the spectrum-effect relationship between GC-MS fingerprint and the antioxidant and anti-inflammatory effects of S. tenuifolia EO. Here, the fingerprints of EO from 10 batches of S. tenuifolia from various sources were established using GC-MS, and the antioxidant and anti-inflammatory bioactivities were evaluated using 2,2-diphenyl-1-picrylhydrazyl and nitric oxide inhibitory assays, respectively. Finally, 13 common peaks were identified from 10 batches of S. tenuifolia by searching against the standard mass spectra in NIST 14 and comparing the literature retention index. The different sources of S. tenuifolia EO exhibit mild antioxidant activities and significant anti-inflammatory effects. In particular, menthone (peak 3), isomenthone (peak 4), pulegone (peak 7), piperitone (peak 8), and β-caryophyllene (peak 11) might be the dominant constituents responsible for the antioxidant and anti-inflammatory activities of S. tenuifolia EO. This method may provide a time-saving, convenient way to screen the potential effective components of S. tenuifolia EO.
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Affiliation(s)
- Xi Bai
- State Key Laboratory Basis of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi, China.,School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, China.,College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi, China
| | - Liu Liu
- State Key Laboratory Basis of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi, China
| | - Junping Zhang
- State Key Laboratory Basis of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi, China
| | - Li Chen
- State Key Laboratory Basis of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi, China
| | - Tao Wu
- State Key Laboratory Basis of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi, China
| | - Haji Akber Aisa
- State Key Laboratory Basis of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi, China
| | - Maitinuer Maiwulanjiang
- State Key Laboratory Basis of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi, China
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14
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Jang YS, Mosolygó T. Inhibition of Bacterial Biofilm Formation by Phytotherapeutics with Focus on Overcoming Antimicrobial Resistance. Curr Pharm Des 2021; 26:2807-2816. [PMID: 32048958 DOI: 10.2174/1381612826666200212121710] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 11/29/2019] [Indexed: 12/17/2022]
Abstract
Bacteria within biofilms are more resistant to antibiotics and chemical agents than planktonic bacteria in suspension. Treatment of biofilm-associated infections inevitably involves high dosages and prolonged courses of antimicrobial agents; therefore, there is a potential risk of the development of antimicrobial resistance (AMR). Due to the high prevalence of AMR and its association with biofilm formation, investigation of more effective anti-biofilm agents is required. From ancient times, herbs and spices have been used to preserve foods, and their antimicrobial, anti-biofilm and anti-quorum sensing properties are well known. Moreover, phytochemicals exert their anti-biofilm properties at sub-inhibitory concentrations without providing the opportunity for the emergence of resistant bacteria or harming the host microbiota. With increasing scientific attention to natural phytotherapeutic agents, numerous experimental investigations have been conducted in recent years. The present paper aims to review the articles published in the last decade in order to summarize a) our current understanding of AMR in correlation with biofilm formation and b) the evidence of phytotherapeutic agents against bacterial biofilms and their mechanisms of action. The main focus has been put on herbal anti-biofilm compounds tested to date in association with Staphylococcus aureus, Pseudomonas aeruginosa and food-borne pathogens (Salmonella spp., Campylobacter spp., Listeria monocytogenes and Escherichia coli).
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Affiliation(s)
- Yun Su Jang
- Department of Medical Microbiology and Immunobiology, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Tímea Mosolygó
- Department of Medical Microbiology and Immunobiology, Faculty of Medicine, University of Szeged, Szeged, Hungary
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15
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Pereira RLS, Freitas TSD, Freitas PR, Araújo ACJD, Campina FF, Fidelis KR, Vale JPCD, Barreto ACH, Coutinho HDM, Bandeira PN, Teixeira AMR, Santos HSD. Seasonality Effects on Antibacterial and Antibiotic Potentiating Activity against Multidrug-Resistant Strains of Escherichia coli and Staphylococcus aureus and ATR-FTIR Spectra of Essential Oils from Vitex gardneriana Leaves. Curr Microbiol 2020; 77:3969-3977. [PMID: 33025183 DOI: 10.1007/s00284-020-02226-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 09/23/2020] [Indexed: 01/02/2023]
Abstract
Plants are natural sources of several bioactive substances, which have been found in extracts, secondary metabolites, and essential oils. Several biological activities have been attributed to essential oils as antiviral, insecticidal, antiparasitic, antioxidant, and antimicrobial. The indiscriminate use of antibiotics has increased the development of resistance mechanisms of microorganisms. Thus, search for efficient natural compounds with antimicrobial activity and low toxicity has increased, so essential oils have been a promising alternative for combating microbial infections. This study was carried out to investigate the seasonality effects on the infrared absorbance spectra, antibacterial activity, and antibiotic potentiating activity of essential oils from Vitex gardneriana leaves. Essential oils were extracted from V. gardneriana Schauer leaves the seasonal period from January to December 2016 and characterized by attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy. The antibacterial effect of these oils and antibiotic potentiating activity, both determined by the minimum inhibitory concentration, were assessed using microtiter plates. For the first time, we present the use of infrared absorbance spectra of these essential oils and show the influence of seasonality on them. Synergistic effects were observed for the essential oils associated with the antibiotics tested (gentamicin, ampicillin, and ofloxacin). The main influence of seasonality on the infrared absorbance spectra of the essential oils of the V. gardneriana occurred in the June month (last month of the rainy season). In regard to antibacterial activity test, the essential oils of the V. gardneriana leaves did not show a direct effect on the strains tested. However, the essential oils when associated with the antibiotics showed variations in the minimum inhibitory concentration with the months of the seasonal period, indicating synergistic effects against Escherichia coli and Staphylococcus aureus bacterial resistance.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Paulo Nogueira Bandeira
- Science and Technology Centre, Chemistry Course, State University Vale do Acaraú, Sobral, CE, Brazil
| | | | - Hélcio Silva Dos Santos
- Department of Biological Chemistry, Regional University of Cariri, Crato, CE, Brazil. .,Science and Technology Centre, Chemistry Course, State University Vale do Acaraú, Sobral, CE, Brazil.
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16
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Oliveira TNS, Silva-Filho CMS, Malveira EA, Aguiar TKB, Santos HS, Albuquerque CC, Morais MB, Teixeira EH, Vasconcelos MA. Antifungal and antibiofilm activities of the essential oil of leaves from Lippia gracilis Schauer against phytopathogenic fungi. J Appl Microbiol 2020; 130:1117-1129. [PMID: 32961612 DOI: 10.1111/jam.14857] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 09/02/2020] [Accepted: 09/13/2020] [Indexed: 01/04/2023]
Abstract
AIMS This study aimed to evaluate the antifungal and antibiofilm effects of essential oil (EO) from leaves of Lippia gracilis and its major constituents, thymol and carvacrol, against phytopathogenic fungi. METHODS AND RESULTS The leaves of L. gracilis were hydrodistilled to obtain the EO and the chemical composition was determined by GC/MS analysis. The antifungal activity of EO of L. gracilis was evaluated on the vegetative and mycelial growth of Colletotrichum gloeosporioides, Colletotrichum lindemuthianum, Fusarium oxysporum and Fusarium solani. In addition, the ability of the oil to inhibit fungal biofilm formation was assessed by total biomass quantification using crystal violet staining, analysis of metabolic activity, and scanning electron microscopy (SEM). Moreover the antifungal and antibiofilm activities of the monoterpenes, thymol and carvacrol, present in EO of L. gracilis were evaluated against F. oxysporum. The analysis of the chemical composition of EO extracted from L. gracilis, revealed the presence of monoterpenes (94·13%), which included carvacrol (48·57%) and thymol (7·78%), and 4 sesquiterpenes (3·74%). In general, EO showed significant antifungal activity and inhibited the formation of fungal biofilms. Furthermore, thymol and carvacrol showed significant antifungal and antibiofilm activities against F. oxysporum. SEM images showed structural changes in fungal morphology upon treatment with EO of L. gracilis. CONCLUSION The results presented in this study showed promising antifungal and antibiofilm effects of EO of L. gracilis and its major components, carvacrol and thymol. SIGNIFICANCE AND IMPACT OF THE STUDY These findings indicate that the EO extracted from L. gracilis, and the monoterpenes, carvacrol and thymol have a great potential as antifungal and antibiofilm agents. Furthermore, this is the first report of the antibiofilm activity of the EO of L. gracilis and its major components against phytopathogenic fungi.
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Affiliation(s)
- T N S Oliveira
- Programa de Pós-graduação em Ciências Naturais, Universidade do Estado do Rio Grande do Norte, Mossoró, RN, Brazil
| | - C M S Silva-Filho
- Departamento de Ciências Biológicas, Faculdade de Ciências Exatas e Naturais, Universidade do Estado do Rio Grande do Norte, Mossoró, RN, Brazil
| | - E A Malveira
- Departamento de Ciências Biológicas, Faculdade de Ciências Exatas e Naturais, Universidade do Estado do Rio Grande do Norte, Mossoró, RN, Brazil
| | - T K B Aguiar
- Departamento de Ciências Biológicas, Faculdade de Ciências Exatas e Naturais, Universidade do Estado do Rio Grande do Norte, Mossoró, RN, Brazil
| | - H S Santos
- Centro de Ciências Exatas e Tecnologia, Universidade Estadual Vale do Acaraú, Sobral, CE, Brazil.,Departamento de Química Biológica, Universidade Regional do Cariri, Crato, CE, Brazil.,Centro de Ciências e Tecnologia, Programa de Pós-graduação em Ciências Naturais, Universidade Estadual do Ceará, Fortaleza, CE, Brazil
| | - C C Albuquerque
- Programa de Pós-graduação em Ciências Naturais, Universidade do Estado do Rio Grande do Norte, Mossoró, RN, Brazil.,Departamento de Ciências Biológicas, Faculdade de Ciências Exatas e Naturais, Universidade do Estado do Rio Grande do Norte, Mossoró, RN, Brazil
| | - M B Morais
- Programa de Pós-graduação em Ciências Naturais, Universidade do Estado do Rio Grande do Norte, Mossoró, RN, Brazil
| | - E H Teixeira
- Laboratório Integrado de Biomoléculas, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - M A Vasconcelos
- Programa de Pós-graduação em Ciências Naturais, Universidade do Estado do Rio Grande do Norte, Mossoró, RN, Brazil.,Laboratório Integrado de Biomoléculas, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, Fortaleza, CE, Brazil.,Universidade do Estado de Minas Gerais, Unidade de Divinópolis, Minas Gerais, Brazil
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