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Endalew SA, Taddese MG, Muhammed M. Evaluation of antioxidant and antibacterial properties of dehydrocostus lactone isolated from Echinops kebericho root. Health Sci Rep 2024; 7:e1990. [PMID: 38515542 PMCID: PMC10955224 DOI: 10.1002/hsr2.1990] [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: 12/16/2023] [Revised: 02/26/2024] [Accepted: 02/27/2024] [Indexed: 03/23/2024] Open
Abstract
Background and Aim Echinops kebericho, an endemic plant to Ethiopia, traditionally used to treat infectious as well as noninfectious diseases. The primary objective of this study was isolating dehydrocostus lactone (DHCL) from E. kebericho and evaluating antibacterial activities on selected human pathogenic bacteria. Methods Extraction method used in this study was maceration. Based on the bioassay information methanol extract of the root of E. kebericho was subjected to column chromatography on silica gel by increasing solvent gradients to isolate DHCL. Optimized amount isolation of DHCL was done by dissolving methanol crude extract by hexane followed by recrystallization at room temperature in the dark place. Different concentrations of the extract were subjected by disc diffusion method against tested bacterial species and antioxidant activity test. Results The phytochemical analysis of E. kebericho revealed a high presence of terpenoids, which are diverse natural compounds known for their antimicrobial and antioxidant properties. This suggests that terpenoids contribute significantly to the pharmacological effects of E. kebericho. In antibacterial testing, Escherichia coli was the most sensitive bacterium among all extracts and concentrations. The methanol extract displayed higher antioxidant activity compared to ethyl acetate and hexane extracts, indicating a higher concentration of antioxidant compounds. Notably, the isolated compound DHCL showed promising activity against tested pathogens and significant antioxidant activity. The higher activity of DHCL compared to the crude extracts suggests its responsibility for the observed effects, indicating that the isolation and purification process may have concentrated its beneficial properties. These findings highlight the potential of E. kebericho and DHCL as sources of bioactive compounds for therapeutic applications. Conclusion All tested extracts and pure compound showed higher inhibition than positive controls in both bioassay. DHCL the principal bioactive component in the root extract of the plant and it displayed potent antibacterial and antioxidant activity.
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Affiliation(s)
- Sisay Awoke Endalew
- Chemistry Department, College of Natural SciencesWollo UniversityDessieEthiopia
| | - Minbale Gashu Taddese
- Chemistry Department, College of Natural and Computational SciencesDebre Berhan UniversityDebre BerhanEthiopia
| | - Meseret Muhammed
- Chemistry Department, College of Natural SciencesWollo UniversityDessieEthiopia
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Gilardoni G, Enríquez AA, Maldonado YE, Cumbicus N, Malagón O. A New Essential Oil from the Native Andean Species Nectandra laurel Klotzsch ex Nees of Southern Ecuador: Chemical and Enantioselective Analyses. PLANTS (BASEL, SWITZERLAND) 2023; 12:3331. [PMID: 37765496 PMCID: PMC10536180 DOI: 10.3390/plants12183331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 08/23/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023]
Abstract
The leaves of Nectandra laurel Klotzsch ex Nees, belonging to the family, Lauraceae, were collected in the province of Loja (Ecuador), dried, and analytically steam-distilled. An unprecedented essential oil was obtained, with a 0.03% yield by weight of dry plant material. The volatile fraction was submitted to qualitative (GC-MS) and quantitative (GC-FID) chemical analysis, on two orthogonal stationary phases. Seventy-eight compounds were detected and quantified on at least one column. The essential oil was dominated by sesquiterpene hydrocarbons (53.0-53.8% on the non-polar and polar stationary phase, respectively), followed by oxygenated sesquiterpenoids (18.9-19.0%). A third group was constituted by metabolites of other origins, mainly aliphatic compounds, apparently derived from the acetate pathway (11.7-8.5%). The major components of the EO (≥3.0% with at least one column) were δ-selinene (30.5-28.8%), δ-cadinene (5.4-6.4%), epi-α-cadinol (4.9-5.2%), an undetermined compound with a molecular weight of 204 (3.4-4.2%), α-pinene (3.3-2.9%), and α-cadinol (2.9-3.0%). Finally, the essential oil was submitted to enantioselective analysis, on two β-cyclodextrin-based chiral selectors, determining the enantiomeric distribution of seven chiral terpenes. Among them, (1R,5R)-(+)-α-pinene, (1R,5R)-(+)-β-pinene, and (R)-(-)-α-phellandrene were enantiomerically pure, whereas camphene, borneol, α-copaene, and α-terpineol were present as scalemic mixtures.
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Affiliation(s)
- Gianluca Gilardoni
- Departamento de Química, Universidad Técnica Particular de Loja (UTPL), Calle Marcelino Champagnat s/n, Loja 110107, Ecuador or (G.G.); (A.A.E.); (Y.E.M.)
| | - Aníbal A. Enríquez
- Departamento de Química, Universidad Técnica Particular de Loja (UTPL), Calle Marcelino Champagnat s/n, Loja 110107, Ecuador or (G.G.); (A.A.E.); (Y.E.M.)
| | - Yessenia E. Maldonado
- Departamento de Química, Universidad Técnica Particular de Loja (UTPL), Calle Marcelino Champagnat s/n, Loja 110107, Ecuador or (G.G.); (A.A.E.); (Y.E.M.)
- Facultad de Medicina, Universidad Católica de Cuenca (UCACUE), Av. las Américas y Humboldt, Cuenca 010105, Ecuador
| | - Nixon Cumbicus
- Departamento de Ciencias Biológicas y Agropecuarias, Universidad Técnica Particular de Loja (UTPL), Calle Marcelino Champagnat s/n, Loja 110107, Ecuador;
| | - Omar Malagón
- Departamento de Química, Universidad Técnica Particular de Loja (UTPL), Calle Marcelino Champagnat s/n, Loja 110107, Ecuador or (G.G.); (A.A.E.); (Y.E.M.)
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Barros DB, Nascimento NS, Sousa AP, Barros AV, Borges YWB, Silva WMN, Motta ABS, Pinto JEL, Sampaio MGV, Barbosa MFS, Fonseca MC, Silva LA, Lima LO, Borges MGSA, Oliveira MBM, Correia MTS, Castellano LRC, Guerra FQS, Silva MV. Antifungal activity of terpenes isolated from the Brazilian Caatinga: a review. BRAZ J BIOL 2023; 83:e270966. [PMID: 37283336 DOI: 10.1590/1519-6984.270966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Accepted: 05/10/2023] [Indexed: 06/08/2023] Open
Abstract
Terpenoids, also named terpenes or isoprenoids, are a family of natural products found in all living organisms. Many plants produce terpenoids as secondary metabolites, and these make up a large part of essential oils. One of most important characteristic is that the compounds are volatile, have odor and can be used in a variety of applications in different industrial segments and traditional medicine. Brazil has a rich and diverse flora that can be used as a source of research for obtaining new molecules. Within the Brazilian flora, it is worth mentioning the Caatinga as an exclusively Brazilian biome where plants adapt to a specific series of weather conditions and therefore become a great storehouse of the terpenoid compounds to be described herein. Fungal infections have become increasingly common, and a great demand for new agents with low toxicity and side effects has thus emerged. Scientists must search for new molecules exhibiting antifungal activity to develop new drugs. This review aims to analyze scientific data from the principal published studies describing the use of terpenes and their biological applications as antifungals.
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Affiliation(s)
- D B Barros
- Universidade Federal de Pernambuco - UFPE, Biosciences Center, Post-graduation in Sciences, Recife, PB, Brasil
| | - N S Nascimento
- Universidade de São Paulo - USP, Department of Biochemistry and Pharmaceutical Technology, São Paulo, SP, Brasil
| | - A P Sousa
- Universidade Federal da Paraíba - UFPB, Department of Physiology and Pathology, João Pessoa, PB, Brasil
| | - A V Barros
- Universidade Federal de Pernambuco - UFPE, Department of Biochemistry, Recife, PB, Brasil
| | - Y W B Borges
- Universidade Federal de Pernambuco - UFPE, Department of Biochemistry, Recife, PB, Brasil
| | - W M N Silva
- Universidade Federal de Pernambuco - UFPE, Department of Biochemistry, Recife, PB, Brasil
| | - A B S Motta
- Universidade Federal da Paraíba - UFPB, Technical School of Health, Health Sciences Center, João Pessoa, PB, Brasil
| | - J E L Pinto
- Universidade de São Paulo - USP, Post-graduation in immunology, Institute of Biomedical Sciences, São Paulo, SP, Brasil
| | - M G V Sampaio
- Universidade Federal de Pernambuco - UFPE, Department of Biochemistry, Recife, PB, Brasil
| | - M F S Barbosa
- Universidade Federal de Pernambuco - UFPE, Department of Biochemistry, Recife, PB, Brasil
| | - M C Fonseca
- Universidade Federal da Paraíba - UFPB, Department of Pharmaceutical Sciences, João Pessoa, PB, Brasil
| | - L A Silva
- Universidade Federal da Paraíba - UFPB, Department of Pharmaceutical Sciences, João Pessoa, PB, Brasil
| | - L O Lima
- Universidade Federal da Paraíba - UFPB, Department of Pharmaceutical Sciences, João Pessoa, PB, Brasil
| | - M G S A Borges
- Universidade Federal de Pernambuco - UFPE, Biosciences Center, Post-graduation in Sciences, Recife, PB, Brasil
| | - M B M Oliveira
- Universidade Federal de Pernambuco - UFPE, Department of Biochemistry, Recife, PB, Brasil
| | - M T S Correia
- Universidade Federal de Pernambuco - UFPE, Department of Biochemistry, Recife, PB, Brasil
| | - L R C Castellano
- Universidade Federal da Paraíba - UFPB, Technical School of Health, Health Sciences Center, João Pessoa, PB, Brasil
| | - F Q S Guerra
- Universidade Federal da Paraíba - UFPB, Department of Pharmaceutical Sciences, João Pessoa, PB, Brasil
| | - M V Silva
- Universidade Federal de Pernambuco - UFPE, Department of Biochemistry, Recife, PB, Brasil
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Health Benefits, Pharmacological Effects, Molecular Mechanisms, and Therapeutic Potential of α-Bisabolol. Nutrients 2022; 14:nu14071370. [PMID: 35405982 PMCID: PMC9002489 DOI: 10.3390/nu14071370] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/14/2022] [Accepted: 03/15/2022] [Indexed: 12/04/2022] Open
Abstract
α-Bisabolol is one of the important monocyclic sesquiterpenes, derived naturally from essential oils of many edible and ornamental plants. It was first obtained from Matricaria chamomilla, commonly known as chamomile or German chamomile. The available literature indicates that this plant along with other α-Bisabolol containing plants is popularly used in traditional medicine for potential health benefits and general wellbeing. Nutritional studies are indicative of the health benefits of α-Bisabolol. Numerous experimental studies demonstrated pharmacological properties of α-Bisabolol including anticancer, antinociceptive, neuroprotective, cardioprotective, and antimicrobial. This review aims to collectively present different pharmacological activities based on both in vitro and in vivo studies. In the present review using synoptic tables and figures, we comprehensively present that α-Bisabolol possesses therapeutic and protective activities, therefore, it can be used for potential health benefits based on pharmacological effects, underlying molecular mechanism, and favorable pharmaceutical properties. Based on the studies mostly performed on cell lines or animal models, it is evident that α-Bisabolol may be a promising nutraceutical and phytomedicine to target aberrant biological mechanisms which result in altered physiological processes and various ailments. Given the polypharmacological effects and pleiotropic properties, along with favorable pharmacokinetics, and dietary availability and safety, α-Bisabolol can be used as a dietary agent, nutraceutical or phytopharmaceutical agent or as an adjuvant with currently available modern medicines. The regulatory approval of this molecule for use as food additives, and in cosmetics and fragrance industry is also supportive of its human usage. Moreover, further studies are necessary to address pharmaceutical, pharmacological, and toxicological aspects before clinical or nutritional usage in humans. The biological actions and health benefits open opportunities for pharmaceutical development with pharmacological basis of its use in future therapeutics.
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Dias ALB, Fernandes CC, Souza JHD, Martins CHG, Moreira FF, Crotti AEM, Miranda MLD. Antibacterial activity of essential oils from Brazilian plants and their major constituents against foodborne pathogens and spoilage bacteria. JOURNAL OF ESSENTIAL OIL RESEARCH 2022. [DOI: 10.1080/10412905.2022.2032424] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
| | | | | | | | - Felipe Fernandes Moreira
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Antônio Eduardo Miller Crotti
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
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