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Phytochemical Profile, Preliminary Toxicity, and Antioxidant Capacity of the Essential Oils of Myrciaria floribunda (H. West ex Willd.) O. Berg. and Myrcia sylvatica (G. Mey) DC. (Myrtaceae). Antioxidants (Basel) 2022; 11:antiox11102076. [PMID: 36290799 PMCID: PMC9658195 DOI: 10.3390/antiox11102076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 10/11/2022] [Accepted: 10/18/2022] [Indexed: 11/17/2022] Open
Abstract
The essential oils (EOs) of Myrciaria floribunda (Mflo) and Myrcia sylvatica (Msyl) (Myrtaceae) were obtained by hydrodistillation. The analysis of volatile constituents was performed by GC/MS. Preliminary toxicity was assessed on Artemia salina Leach. The antioxidant capacity was measured by the ABTS•+ and DPPH• radical inhibitory activities. The results indicate that the Mflo EO had the highest yield (1.02%), and its chemical profile was characterized by high levels of hydrocarbon (65.83%) and oxygenated (25.74%) monoterpenes, especially 1,8-cineole (23.30%), terpinolene (22.23%) and α-phellandrene (22.19%). Regarding the Msyl EO, only hydrocarbon (51.60%) and oxygenated (46.52%) sesquiterpenes were identified in the sample, with (Z)-α-trans-bergamotene (24.57%), α-sinensal (13.44%), and (Z)-α-bisabolene (8.33%) at higher levels. The EO of Mflo exhibited moderate toxicity against A. salina (LC50 = 82.96 ± 5.20 µg.mL−1), while the EO of Msyl was classified as highly toxic (LC50 = 2.74 ± 0.50 µg.mL−1). In addition, relative to Trolox, the EOs of Mflo and Msyl showed significant inhibitory effects (p < 0.0001) against the DPPH• radical. This study contributes to the expansion of chemical and biological knowledge on the EOs of Myrtaceae species from the Amazon region.
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Gribner C, Barbosa V, Monteiro LM, Swiech JND, Raman V, Manfron J, Miguel OG, Montrucchio DP, de Fátima Gaspari Dias J. Microscopic investigations of Ocotea paranaensis-A Brazilian endemic and endangered species. Microsc Res Tech 2022; 85:3316-3324. [PMID: 35751588 DOI: 10.1002/jemt.24186] [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: 02/05/2022] [Revised: 05/28/2022] [Accepted: 06/06/2022] [Indexed: 11/06/2022]
Abstract
This article describes the morpho-anatomies of the leaves and stems of Ocotea paranaensis Brotto, Baitello, Cervi & Santos (Lauraceae) using light and scanning electron microscopy. The main anatomical features characterizing the species are the presence of simple non-glandular trichomes in the leaves and stems, large secretory cells in the leaves, flat-convex petioles with two small lateral ribs, brachysclereids in the stem cortex and pith, and the presence of starch grains and various types of calcium oxalate crystals in the pith. Histochemical tests indicated the presence of lignin in stone cells, fibers, and xylem. Lipophilic contents were found in the secretory cells. Phenolic compounds were detected in the epidermis, hypodermis, phloem, and xylem. The present study's findings can contribute to the taxonomy and authentication of O. paranaensis.
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Affiliation(s)
- Caroline Gribner
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Parana, Curitiba, Brazil
| | - Vanessa Barbosa
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Parana, Curitiba, Brazil
| | - Luciane Mendes Monteiro
- Postgraduate Program in Pharmaceutical Sciences, State University of Ponta Grossa, Ponta Grossa, Brazil
| | | | - Vijayasankar Raman
- National Center for Natural Products Research, School of Pharmacy, The University of Mississippi, University, Mississippi, USA
| | - Jane Manfron
- Postgraduate Program in Pharmaceutical Sciences, State University of Ponta Grossa, Ponta Grossa, Brazil
| | - Obdulio Gomes Miguel
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Parana, Curitiba, Brazil
| | - Deise Prehs Montrucchio
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Parana, Curitiba, Brazil
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Chemical Composition and Preliminary Toxicity Evaluation of the Essential Oil from Peperomia circinnata Link var. circinnata. ( Piperaceae) in Artemia salina Leach. Molecules 2021; 26:molecules26237359. [PMID: 34885940 PMCID: PMC8659193 DOI: 10.3390/molecules26237359] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 11/25/2021] [Accepted: 11/30/2021] [Indexed: 01/19/2023] Open
Abstract
Peperomia Ruiz and Pav, the second largest genus of the Piperaceae, has over the years shown potential biological activities. In this sense, the present work aimed to carry out a seasonal and circadian study on the chemical composition of Peperomia circinata essential oils and aromas, as well as to evaluate the preliminary toxicity in Artemia salina Leach and carry out an in silico study on the interaction mechanism. The chemical composition was characterized by gas chromatography (GC/MS and GC-FID). In the seasonal study the essential oil yields had a variation of 1.2–7.9%, and in the circadian study the variation was 1.5–5.6%. The major compounds in the seasonal study were β-phellandrene and elemicin, in the circadian they were β-phellandrene and myrcene, and the aroma was characterized by the presence of β-phellandrene. The multivariate analysis showed that the period and time of collection influenced the essential oil and aroma chemical composition. The highest toxicity value was observed for the essential oil obtained from the dry material, collected in July with a value of 14.45 ± 0.25 μg·mL−1, the in silico study showed that the major compounds may be related to potential biological activity demonstrated by the present study.
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Passos BG, de Albuquerque RDDG, Muñoz-Acevedo A, Echeverria J, Llaure-Mora AM, Ganoza-Yupanqui ML, Rocha L. Essential oils from Ocotea species: Chemical variety, biological activities and geographic availability. Fitoterapia 2021; 156:105065. [PMID: 34688821 DOI: 10.1016/j.fitote.2021.105065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 10/13/2021] [Accepted: 10/14/2021] [Indexed: 11/15/2022]
Abstract
This review describes the chemical composition and biological properties of essential oils from plants of the Ocotea genus, from different origin. This taxon belongs to the Laureaceae family, which in turn, is best known for medicinal use, often related to the essential oils. The text includes studies about Ocotea species distributed mainly on the South American continent, but also reporting species located in North America and Africa. Brazil, Colombia, Costa Rica and Ecuador are countries with highest number of species mentioned in the review. Also, the major components of each essential oil, its chemical structures, as well as the description and extent of biological activities related to essential oils are detailed in this review. Finally, the text discusses the chemical and biological aspects of these studies in a comparatively way, also informing additional data such as yield, biome of origin and pharmacobotanical location.
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Affiliation(s)
- Bruno Goulart Passos
- Laboratório de Tecnologia em Productos Naturais, Faculdade de Farmácia, Universidade Federal Fluminense, Niterói, Brazil
| | - Ricardo Diego Duarte Galhardo de Albuquerque
- Laboratório de Tecnologia em Productos Naturais, Faculdade de Farmácia, Universidade Federal Fluminense, Niterói, Brazil; Departamento de Farmacología, Facultad de Farmacia y Bioquímica, Universidad Nacional de Trujillo, Trujillo, Peru.
| | - Amner Muñoz-Acevedo
- Departamento de Química y Biología, Universidad del Norte, Barranquilla, Colombia.
| | - Javier Echeverria
- Departamento de Ciencias Ambientales, Facultad de Química y Biología, Universidad Santiago de Chile, Chile.
| | - Alejandrina M Llaure-Mora
- Departamento de Farmacología, Facultad de Farmacia y Bioquímica, Universidad Nacional de Trujillo, Trujillo, Peru.
| | - Mayar L Ganoza-Yupanqui
- Departamento de Farmacología, Facultad de Farmacia y Bioquímica, Universidad Nacional de Trujillo, Trujillo, Peru.
| | - Leandro Rocha
- Laboratório de Tecnologia em Productos Naturais, Faculdade de Farmácia, Universidade Federal Fluminense, Niterói, Brazil
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de Almeida RS, Ribeiro-Filho J, Freitas PR, de Araújo ACJ, Dos Santos EL, Tintino SR, Moura TF, Ferreira VA, Ferreira BA, Juno Alencar Fonseca V, Leite PIP, Albuquerque da Silva AC, Everson da Silva L, do Amaral W, Deschamps C, Siyadatpanah A, Wilairatana P, Coutinho HDM. Enhancement of the antibiotic activity mediated by the essential oil of Ocotea odorifera (VELL) ROWHER and safrole association. J Infect Public Health 2021; 15:373-377. [PMID: 34656506 DOI: 10.1016/j.jiph.2021.09.028] [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: 08/02/2021] [Revised: 09/09/2021] [Accepted: 09/27/2021] [Indexed: 11/18/2022] Open
Abstract
In a recent study, our research group demonstrated that the essential oil of Ocotea odorifera (EOOO) and its major compound safrole potentiated the action fluoroquinolones, modulating bacterial resistance possibly due to direct inhibition of efflux pumps. Thus, in the present study, we investigated whether these treatments could enhance the activity of gentamicin and erythromycin against multidrug-resistant (MDR) bacteria. The EOOO was extracted by hydrodistillation, and the phytochemical analysis was performed by gas chromatography coupled to mass spectrometry (GC-MS). The antibiotic-enhancing effect of the EOOO and safrole against MDR strains of Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa was analyzed by the broth microdilution method. The chemical analysis confirmed the presence of safrole as a major component among the 16 compounds identified in the EOOO. Both the essential oil and the isolated compound showed clinically relevant antibacterial activities against S. aureus. Regarding the modulation of antibiotic resistance, the EOOO was found to enhance the activity of erythromycin against the strains of P. aeruginosa and S. aureus, as well as improving the action of gentamicin against S. aureus. On the other hand, safrole potentiated the activity of gentamicin against the S. aureus strain alone. It is concluded, therefore, that the EOOO and safrole can enhance the activity of macrolides and aminoglycosides, and as such are useful in the development of therapeutic tools to combat bacterial resistance against these classes of antibiotics.
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Affiliation(s)
- Ray Silva de Almeida
- Laboratório de Microbiologia e Biologia Molecular - LMBM, Universidade Regional do Cariri, Crato, CE, Brazil.
| | | | - Priscilla Ramos Freitas
- Laboratório de Microbiologia e Biologia Molecular - LMBM, Universidade Regional do Cariri, Crato, CE, Brazil.
| | | | - Eduardo Lourenço Dos Santos
- Laboratório de Microbiologia e Biologia Molecular - LMBM, Universidade Regional do Cariri, Crato, CE, Brazil.
| | - Saulo Relison Tintino
- Laboratório de Microbiologia e Biologia Molecular - LMBM, Universidade Regional do Cariri, Crato, CE, Brazil.
| | - Talysson Felismino Moura
- Laboratório de Microbiologia e Biologia Molecular - LMBM, Universidade Regional do Cariri, Crato, CE, Brazil.
| | | | | | - Victor Juno Alencar Fonseca
- Laboratório de Microbiologia e Biologia Molecular - LMBM, Universidade Regional do Cariri, Crato, CE, Brazil
| | - Pedro Ivo Palacio Leite
- Laboratório de Microbiologia e Biologia Molecular - LMBM, Universidade Regional do Cariri, Crato, CE, Brazil
| | | | - Luiz Everson da Silva
- Post Graduate Programme in Sustainable Territorial Development, Federal University of Paraná - UFPR, Matinhos, Brazil.
| | - Wanderlei do Amaral
- Post Graduate Programme in Sustainable Territorial Development, Federal University of Paraná - UFPR, Matinhos, Brazil.
| | - Cícero Deschamps
- Post Graduate Programme in Agronomy, Federal University of Paraná - UFPR, Curitiba, Brazil.
| | - Abolghasem Siyadatpanah
- Ferdows School of Paramedical and Health, Birjand University of Medical Sciences, Birjand, Iran.
| | - Polrat Wilairatana
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand.
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Betim FCM, Oliveira CFD, Rech KS, Souza AM, Miguel OG, Miguel MD, Montrucchio DP, Maurer JBB, Dias JDFG. Ocotea nutans (Nees) Mez: structural elucidation of C-hetorosides flavonoids and evaluation of their antioxidant and antibacterial properties from ethyl acetate extract. Nat Prod Res 2021; 36:2902-2906. [PMID: 34039181 DOI: 10.1080/14786419.2021.1931184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The Ocotea genus exhibits a variety of pharmacological, antibacterial and antioxidant effects. The aim of the present study was to evaluate the antioxidant potential and antibacterial properties of the ethyl acetate fraction of Ocotea nutans leaves. Isolation and identification of the phenolic compounds from the fraction was also carried out. The isolated compounds were characterised by one- and two-dimensional nuclear magnetic resonance analysis and identified as vitexin (1) and isovitexin (2). The ethyl acetate fraction of Ocotea nutans leaves demonstrated considerable antioxidant potential. The observed minimum inhibitory concentration of 250 µg.mL-1 was classified as a moderate antibacterial activity against Enterococcus faecalis. Findings from this study demonstrate the utility of this plant as a potential source of antioxidant and antibacterial agents.
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Affiliation(s)
- Fernando Cesar Martins Betim
- Postgraduate Program in Pharmaceutical Sciences, Department of Pharmacy, Federal University of Paraná (UFPR), Curitiba, Paraná, Brazil
| | - Camila Freitas de Oliveira
- Postgraduate Program in Pharmaceutical Sciences, Department of Pharmacy, Federal University of Paraná (UFPR), Curitiba, Paraná, Brazil
| | - Katlin Suellen Rech
- Postgraduate Program in Pharmaceutical Sciences, Department of Pharmacy, Federal University of Paraná (UFPR), Curitiba, Paraná, Brazil
| | - Angela Maria Souza
- Postgraduate Program in Pharmaceutical Sciences, Department of Pharmacy, Federal University of Paraná (UFPR), Curitiba, Paraná, Brazil
| | - Obdulio Gomes Miguel
- Postgraduate Program in Pharmaceutical Sciences, Department of Pharmacy, Federal University of Paraná (UFPR), Curitiba, Paraná, Brazil
| | - Marilis Dallarmi Miguel
- Postgraduate Program in Pharmaceutical Sciences, Department of Pharmacy, Federal University of Paraná (UFPR), Curitiba, Paraná, Brazil
| | - Deise Prehs Montrucchio
- Postgraduate Program in Pharmaceutical Sciences, Department of Pharmacy, Federal University of Paraná (UFPR), Curitiba, Paraná, Brazil
| | - Juliana Bello Baron Maurer
- Department of Biochemistry and Molecular Biology, Federal University of Paraná (UFPR), Curitiba, Paraná, Brazil
| | - Josiane de Fátima Gaspari Dias
- Postgraduate Program in Pharmaceutical Sciences, Department of Pharmacy, Federal University of Paraná (UFPR), Curitiba, Paraná, Brazil
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de Souza MA, da Silva L, Dos Santos MAC, Macêdo MJF, Lacerda-Neto LJ, Coutinho HDM, de Oliveira LCC, Cunha FAB. Larvicidal Activity of Essential Oils Against Aedes aegypti (Diptera: Culicidae). Curr Pharm Des 2020; 26:4092-4111. [PMID: 32767924 DOI: 10.2174/1381612826666200806100500] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 07/20/2020] [Indexed: 12/23/2022]
Abstract
The Aedes aegypti is responsible for the transmission of arboviruses, which compromise public health. In the search for synthetic product alternatives, essential oils (OEs) have been highlighted by many researchers as natural insecticides. This systematic review (SR) was performed according to PRISMA guidelines (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) and its objective was to evaluate studies addressing OEs with larvicidal properties against Ae. aegypti, through electronic database searches (Pubmed, Science Direct and Scielo), covering an overview of the plant sources OEs, which plant parts were used, the extraction methods, analytical techniques, major and/or secondary constituents with greater percentages, as well as the LC50s responsible for larval mortality. Following study analysis, plants distributed across 32 families, 90 genera and 175 species were identified. The Lamiaceae, Myrtaceae, Piperaceae, Asteraceae, Rutaceae, Euphorbiaceae and Lauraceae families obtained the highest number of species with toxic properties against larvae from this vector. Practically all plant parts were found to be used for OE extraction. Hydrodistillation and steam distillation were the main extraction methods identified, with GC-MS/GC-FID representing the main analytical techniques used to reveal their chemical composition, especially of terpene compounds. In this context, OEs are promising alternatives for the investigation of natural, ecologically correct and biodegradable insecticides with the potential to be used in Ae. aegypti control programs.
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Affiliation(s)
- Mikael A de Souza
- Department of Biological Chemistry, Regional University of Cariri, Crato (CE), Brazil
| | - Larissa da Silva
- Department of Biological Chemistry, Regional University of Cariri, Crato (CE), Brazil
| | - Maria A C Dos Santos
- Department of Biological Chemistry, Regional University of Cariri, Crato (CE), Brazil
| | - Márcia J F Macêdo
- Department of Biological Chemistry, Regional University of Cariri, Crato (CE), Brazil
| | - Luiz J Lacerda-Neto
- Department of Biological Chemistry, Regional University of Cariri, Crato (CE), Brazil
| | - Henrique D M Coutinho
- Department of Biological Chemistry, Regional University of Cariri, Crato (CE), Brazil
| | - Lígia C C de Oliveira
- Department of Biological Chemistry, Regional University of Cariri, Crato (CE), Brazil
| | - Francisco A B Cunha
- Department of Biological Chemistry, Regional University of Cariri, Crato (CE), Brazil
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GC-MS Profile and Enhancement of Antibiotic Activity by the Essential Oil of Ocotea odorífera and Safrole: Inhibition of Staphylococcus aureus Efflux Pumps. Antibiotics (Basel) 2020; 9:antibiotics9050247. [PMID: 32408576 PMCID: PMC7277935 DOI: 10.3390/antibiotics9050247] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 05/01/2020] [Accepted: 05/05/2020] [Indexed: 11/17/2022] Open
Abstract
Considering the evidence that essential oils, as well as safrole, could modulate bacterial growth in different resistant strains, this study aims to characterize the phytochemical profile and evaluate the antibacterial and antibiotic-modulating properties of the essential oil Ocotea odorífera (EOOO) and safrole against efflux pump (EP)-carrying strains. The EOOO was extracted by hydrodistillation, and the phytochemical analysis was performed by gas chromatography coupled to mass spectrometry (GC-MS). The antibacterial and antibiotic-modulating activities of the EOOO and safrole against resistant strains of Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa were analyzed through the broth microdilution method. The EP-inhibiting potential of safrole in association with ethidium bromide or antibiotics was evaluated using the S. aureus 1199B and K2068 strains, which carry genes encoding efflux proteins associated with antibiotic resistance to norfloxacin and ciprofloxacin, respectively. A reduction in the MIC of ethidium bromide or antibiotics was used as a parameter of EP inhibition. The phytochemical analysis identified 16 different compounds in the EOOO including safrole as the principal constituent. While the EOOO and safrole exerted clinically relevant antibacterial effects against S. aureus only, they potentiated the antibacterial activity of norfloxacin against all strains evaluated by our study. The ethidium bromide and antibiotic assays using the strains of S. aureus SA1119B and K2068, as well as molecular docking analysis, indicated that safrole inhibits the NorA and MepA efflux pumps in S. aureus. In conclusion, Ocotea odorifera and safrole presented promising antibacterial and antibiotic-enhancing properties, which should be explored in the development of drugs to combat antibacterial resistance, especially in strains bearing genes encoding efflux proteins.
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