Geographic location and seasonality affect the chemical composition of essential oils of Lippia alba accessions

Filho, José Carlos Freitas de Sá; Nizio, Daniela Aparecida de Castro; Oliveira, Alisson Marcel Souza de; Alves, Mércia; Oliveira, Roberta Camargos de; Luz, José Magno Queiróz; Nogueira, Paulo César de Lima; Arrigoni-Blank, Maria de Fátima; Blank, Arie Fitzgerald

doi:10.1016/j.indcrop.2022.115602

Cited by 7 publications

(5 citation statements)

References 28 publications

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“…The absence of antimicrobial activity of the ethanolic extract of C. citratus observed in this study is also in disagreement with several other studies that have also investigated the antibacterial effect of lemongrass [75][76][77][78]. This difference between the results of the present study and those observed in others could be explained by several factors, such as the geographical area of origin of the extracted plants [79], the extraction procedure [80][81][82], and the phenotype and genotypic differences of the strains tested [83]. De Sá Filho et al [79] recently reported that factors such as the physicochemical characteristics of soils, different dynamics of the action of climatic factors, and the consequent diversity of biological interactions in biomes greatly affect the chemical composition of plants.…”

Section: Inhibition Zone (Iz)contrasting

confidence: 99%

“…This difference between the results of the present study and those observed in others could be explained by several factors, such as the geographical area of origin of the extracted plants [79], the extraction procedure [80][81][82], and the phenotype and genotypic differences of the strains tested [83]. De Sá Filho et al [79] recently reported that factors such as the physicochemical characteristics of soils, different dynamics of the action of climatic factors, and the consequent diversity of biological interactions in biomes greatly affect the chemical composition of plants. In addition, the previous studies have revealed that the types of extraction, the extraction parameters such as the nature of solvents used and their concentration, the m/v ratio, the temperature, and the extraction time can lead to very significant differences in the chemical composition of the extracts and therefore of the antimicrobial activity [80,81].…”

Section: Inhibition Zone (Iz)contrasting

confidence: 99%

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Synthesis of green-engineered silver nanoparticles using Cymbopogon citratus (lemongrass) and its antibacterial activity against clinical Pseudomonas aeruginosa

Arsene,

Davares,

Goriainov

et al. 2024

Int J One Health

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Background and Aim: The use of bioengineered nanocomposites as antimicrobials has increased in recent years, but very few investigations have been conducted to test their effectiveness against Pseudomonas aeruginosa, a pathogen presenting public health risks that can impact both humans and animals. The aim of this study was to assess the antimicrobial potential of phytofabricated silver nanoparticles synthesized using lemongrass extract against clinical isolates of P. aeruginosa. Materials and Methods: The extraction of active compounds from the leaves of Cymbopogon citratus was performed using ethanol (80%) as a solvent, high-performance liquid chromatography-mass spectrometry was used to analyze the chemical composition of the extract, the synthesis of silver nanoparticles (AgNPs) was done using silver nitrate (AgNO3) as a precursor, and the antimicrobial and antibiofilm activity of the extract and the AgNPs phytofabricated was assessed against 10 clinical strains of P. aeruginosa. Results: Lemongrass extract was found to consist of the following main compounds: Caffeic acid (445.21 ± 32.77 μg/g), p-coumaric acid (393.32 ± 39.56 μg/g), chlorogenic acid (377.65 ± 4.26 μg/g), quinic acid (161.52 ± 17.62 μg/g), and quercetin-3-glucoside (151.35 ± 11.34 μg/g). AgNPs were successfully phytofabricated using 2.5 mM AgNO3. The ultraviolet (UV)-visible absorption spectra of the AgNPs showed a localized surface plasmon resonance at 464 nm with an absorbance of 0.32 A. The 50x hydrodynamic diameter was 50.29 nm with a surface area value of 120.10 m2/ cm3, and the volume mean diameter and Sauter mean diameter were 50.63 nm and 49.96 nm, respectively. Despite the compound found in lemongrass extract, no antimicrobial activity was observed with the extract, while AgNPs exhibited noteworthy dose-dependent antimicrobial activity with inhibition diameters up to 24 mm and minimum inhibitory concentration (MIC) and minimum bactericidal concentration ranging from 2 to 16 and 4–64 µg/mL, respectively. AgNPs also demonstrated significant antibiofilm activity by inhibiting biofilms up to 99% between MIC/2 and 2MIC. Conclusion: The present study suggests that lemongrass is a good candidate for the synthesis of AgNPs with good physicochemical characteristics and having a strong anti-pseudomonas activity. Further research is needed to assess the stability and safety of these AgNPs. Keywords: antibiofilm capacity, antimicrobial activity, green synthesis, lemongrass, Pseudomonas aeruginosa, silver nanoparticles.

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Section: Inhibition Zone (Iz)contrasting

confidence: 99%

Section: Inhibition Zone (Iz)contrasting

confidence: 99%

Synthesis of green-engineered silver nanoparticles using Cymbopogon citratus (lemongrass) and its antibacterial activity against clinical Pseudomonas aeruginosa

Arsene,

Davares,

Goriainov

et al. 2024

Int J One Health

View full text Add to dashboard Cite

show abstract

“…It should be taken into account that environmental factors can be decisive for the chemical composition of the metabolites produced by the plant, where it produces compounds according to its need ( Sá Filho et al, 2022 ). The plant from which the essential oil was extracted for this work was obtained in the northern region of Brazil, a humid tropical forest region.…”

Section: Discussionmentioning

confidence: 99%

Chemical profile and biological properties of the Piper corcovadense C.DC. essential oil

Henrique Fontoura,

Cristina Perin,

Paula Buratto

et al. 2024

Saudi Pharmaceutical Journal

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“…The maturity of plant parts and their growth stages are important in the morphological development and physiological mechanisms of numerous plant species [17,48,49]. Studies have reported signi cant variations in the concentrations of the primary constituents of the essential oils of L. alba in both different harvests of monthly leaf regrowth within the same areas of study, as well as in harvests conducted in diverse regions [24].…”

Section: Discussionmentioning

confidence: 99%

“…In Colombia, traditional medicine relies on L. origanoides to cure respiratory and gastrointestinal disorders [22]. Furthermore, some species exhibit antimalarial, antihypertensive, and antiviral activities [23][24]. In most instances, the parts of the plant employed are the aerial parts including the leaves and owers.…”

Section: Introductionmentioning

confidence: 99%

Antifungal and antibacterial activities of Lippia callicarpifolia Kunth essential oils and influence of phenological stage on chemical composition

Villagómez-Guzmán,

García-Bores,

López-Perez

et al. 2023

Preprint

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Background: Lippia callicarpifolia Kunth (Verbenaceae) is an aromatic perennial shrub popularly known as “flor de aire”, “mostranzo”, and “rosa de castilla” in the community of Tonatico, State of Mexico, Mexico. This study examined the influence of phenological stage on the chemical composition of essential oils (EOs) obtained from aerial parts collected at three different developmental periods and the impact on their antimicrobial activity against bacteria and yeasts of medical importance, including microorganisms isolated from clinical cases. Methods: GC‒MS, retention indices, and standard compounds were employed to identify 38 constituents. The antimicrobial activity of the EOs was evaluated following the Clinical and Laboratory Standard Institute M100 guidelines (2018). Results: During the pre-flowering stage (September), the essential oil of fresh leaves/stems (LSEP) was composed mainly of β-caryophyllene. In contrast, β-phellandrene, β-caryophyllene, and α-pinene were the major compounds in the EOs of leaves/stems and flowers collected during full bloom in November (LNOV and FNOV, respectively) and at the end the flowering stage in February (LFEB and FFEB, respectively). All EOs studied exhibited antibacterial and anticandidal activities. Determination of minimal inhibitory concentrations (MICs) and bactericidal or fungicidal concentrations (MBCs or MFCs) revealed that the most significant antimicrobial activity was observed for the essential oils LNOV and FNOV. LNOV showed the highest level of antifungal activity, significantly inhibiting the growth of Candida glabrata (with an MIC value of 0.5 mg/mL). In addition, the essential oil of flowers FNOV exhibited a broader antibacterial spectrum, effectively inhibiting the development of all gram-negative and gram-positive bacteria studied, including multidrug-resistant strains isolated from clinical cases. The LSEP, LNOV, and FNOV EOs inhibited C. glabrata biofilm formation. Conclusions: The EOs of L. callicarpifolia Kunth may be a viable alternative source of naturally occurring antimicrobial agents for effectively combating infectious diseases that offer an affordable approach to treatment. This study examines for the first time the chemical composition of L. callicarpifolia EOs during different growth stages, including vegetative and flowering stages, along with their antimicrobial activity.

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Geographic location and seasonality affect the chemical composition of essential oils of Lippia alba accessions

Cited by 7 publications

References 28 publications

Synthesis of green-engineered silver nanoparticles using Cymbopogon citratus (lemongrass) and its antibacterial activity against clinical Pseudomonas aeruginosa

Synthesis of green-engineered silver nanoparticles using Cymbopogon citratus (lemongrass) and its antibacterial activity against clinical Pseudomonas aeruginosa

Chemical profile and biological properties of the Piper corcovadense C.DC. essential oil

Antifungal and antibacterial activities of Lippia callicarpifolia Kunth essential oils and influence of phenological stage on chemical composition

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