Essential Oils from the Aerial Part and Rhizome of Amomummuricarpum Elmer and Their Antimicrobial Activity

Chemical compositions in essential oils of Amomum muricarpum Elmer were determined using GC-MS/GC-FID. In the hydro-distilled oils of aerial part and rhizome, twenty-eight and thirty-three constituents were identified, accounting for 98.73 and 97.88%, respectively. A. muricarpum essential oils were associated with the presence of monoterpenes, sesquiterpenes, and their oxygenated types. Monoterpenes (> 80.00%) were major compounds, in which the main compound α-pinene reached the highest percentage of 62.94-74.97%. A. muricarpum essential oils showed antimicrobial activity against the positive Gram bacterium Staphylococcus aureus and filamentous fungus Aspergillus niger with the respective MIC values of 400 and 100 µg/mL. This study provides new information that Vietnamese medicinal plant A. muricarpum are a rich resource of monoterpene α-pinene.

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Antimicrobial activity of oregan and clove essential oils against some foodborne pathogens

Semina Ciências Biológicas e da Saúde ◽

10.5433/1679-0367.2020v41n1p3 ◽

2020 ◽

Vol 41 (1) ◽

pp. 3

Author(s):

Flavia Debiagi ◽

Renata K.T. Kobayashi ◽

Gerson Nakazato ◽

Luciano Aparecido Panagio ◽

Suzana Mali

Keyword(s):

Staphylococcus Aureus ◽

Antimicrobial Activity ◽

Candida Albicans ◽

Aspergillus Niger ◽

Essential Oils ◽

Bacillus Cereus ◽

Streptococcus Mutans ◽

Enterococcus Faecalis ◽

Foodborne Pathogens ◽

Penicillium Citrinum

A preferência mundial para alimentos mais saudáveis e livres de aditivos químicos pelos consumidores, associada ao aumento da resistência bacteriana, resultaram na necessidade de medidas alternativas no setor de alimentos. Os óleos correspondem a antimicrobianos naturais e constituem uma classe emergente como substitutos dos produtos químicos sintéticos na conservação de alimentos. O objetivo deste trabalho foi avaliar a atividade antimicrobiana de óleos essenciais de orégano (OEO) e cravo (CEO ) frente a bactérias, fungos e leveduras de importância no setor de alimentos. OEO e CEO foram avaliados in natura (IN) e após processamento térmico (TP) a 120 o C por 5 minutos. Para avaliar a atividade antimicrobiana frente a cada microrganismo empregou-se o método de discodifusão e o teste de microdiluição em caldo (MIC). Tanto o OEO quanto o CEO apresentaram zonas de inibição semelhantes para amostras IN e TP, indicando que a atividade antimicrobiana desses óleos são resistentes a altas temperaturas. Os microrganismos mais sensíveis para ambos os óleos essenciais foram os fungos (Aspergillus niger, Penicillium citrinum e Candida albicans), seguidos por Staphylococcus aureus, Bacillus cereus e Staphylococcus aureus resistente à meticilina (MRSA). Já as cepas Streptococcus mutans e Enterococcus faecalis apresentaram uma maior resistência frente à atividade antimicrobiana dos óleos essenciais. Em geral, os maiores halos de inibição e menores valores de MIC foram obtidos quando empregado o OEO, sugerindo uma maior atividade microbiana do mesmo quando comparado ao CEO

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Chemical Composition and Biological Activity of Essential Oils of Dracocephalum heterophyllum and Hyssopus officinalis from Western Himalaya

Natural Product Communications ◽

10.1177/1934578x1501000131 ◽

2015 ◽

Vol 10 (1) ◽

pp. 1934578X1501000 ◽

Cited By ~ 4

Author(s):

Iris Stappen ◽

Jürgen Wanner ◽

Nurhayat Tabanca ◽

David E. Wedge ◽

Abbas Ali ◽

...

Keyword(s):

Staphylococcus Aureus ◽

Essential Oil ◽

Essential Oils ◽

Western Himalaya ◽

Chemical Compositions ◽

Main Compound ◽

Dilution Assay ◽

Agar Dilution ◽

Main Components ◽

Hyssopus Officinalis

The essential oils of two representatives of the Lamiaceae, Dracocephalum heterophyllum Benth. and Hyssopus officinalis L., are described for their antifungal, antibacterial, larvicidal and inect biting deterrent activities. Additionally, the chemical compositions of the essential oils, analyzed by simultaneous GC-MS and GC-FID, and odor descriptions are given. The main components of H. officinalis oil were pinocarvone, cis-pinocamphone, and β-pinene. Citronellol was found as the main compound of D. heterophyllum essential oil. Antibacterial testing by agar dilution assay revealed greater activity of D. heterophyllum against Staphylococcus aureus compared with H. officinalis. D. heterophyllum essential oil also showed promising antifungal activity against Colletotrichum species and was more toxic to Aedes aegypti larvae in a larvicial bioassay. Both essential oils showed high activity in the biting deterrent bioassay.

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Antioxidant and Cytotoxic Activities of Myrtaceae Essential Oils Rich in Terpenoids From Brazil

Natural Product Communications ◽

10.1177/1934578x21996156 ◽

2021 ◽

Vol 16 (2) ◽

pp. 1934578X2199615

Author(s):

Lucas Botelho Jerônimo ◽

Jamile S. da Costa ◽

Laine C. Pinto ◽

Raquel C. Montenegro ◽

William N. Setzer ◽

...

Keyword(s):

Essential Oils ◽

Cancer Cells ◽

Antioxidant Activities ◽

Human Cancer ◽

Psidium Guajava ◽

Cytotoxic Activities ◽

Chemical Compositions ◽

Main Compound ◽

Human Cancer Cells ◽

High Concentrations

This work analyzed the chemical compositions and evaluated the antioxidant and cytotoxic activities of essential oils (EO) of Eugenia patrisii (Epat), Eugenia stipitata (Esti), Myrcia splendens (Mspl), Myrcia sylvatica (Msyl), Psidium guajava (Pgua), and Psidium guineense (Pgui-1 and Pgui-2) from the Brazilian Amazon. Sesquiterpenoids were found in high concentrations in the oils of E. patrisii and M. splendens, which were rich in E-caryophyllene (32.0% and 45.8%); E. stipitata and M. sylvatica, which displayed germacrene D (11.8%) and germacrene B (24.5%); and P. guajava that showed epi-β-bisabolol (16.1%) as the main compound. However, P. guineense samples (Pgui-1 and Pgui-2) were rich in monoterpenoids such as limonene (Pgui-1: 30.2%; Pgui-2 30.4%) and α-pinene (Pgui-1: 22.5%; Pgui-2: 17.7%). The samples showed a weak and moderate antioxidant activities in the DPPH assay, displaying inhibition rates from 11.5% to 38.6% (at 10 mg/mL). All samples were cytotoxic against human cancer cells by the MTT method. Epat oil showed higher activity against melanoma (SKMEL-19, IC505.8 µg/mL), gastric (AGP01, IC503.2 µg/mL), and colon (HCT116, IC506.7 µg/mL). Meanwhile, the samples Pgua and Pgui were more active against breast cancer cells (MCF7, IC5012.4 µg/mL and 11.6 µg/mL, respectively).

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Chemical Compositions, Mosquito Larvicidal and Antimicrobial Activities of Essential Oils from Five Species of Cinnamomum Growing Wild in North Central Vietnam

Molecules ◽

10.3390/molecules25061303 ◽

2020 ◽

Vol 25 (6) ◽

pp. 1303 ◽

Cited By ~ 7

Author(s):

Do N. Dai ◽

Nguyen T. Chung ◽

Le T. Huong ◽

Nguyen H. Hung ◽

Dao T.M. Chau ◽

...

Keyword(s):

Antimicrobial Activity ◽

Essential Oil ◽

Essential Oils ◽

Larvicidal Activity ◽

Antimicrobial Agents ◽

Chemical Compositions ◽

North Central ◽

Mosquito Larvicidal Activity ◽

Central Vietnam ◽

Leaf Essential Oil

Members of the genus Cinnamomum (Lauraceae) have aromatic volatiles in their leaves and bark and some species are commercially important herbs and spices. In this work, the essential oils from five species of Cinnamomum (C. damhaensis, C. longipetiolatum, C. ovatum, C. polyadelphum and C. tonkinense) growing wild in north central Vietnam were obtained by hydrodistillation, analyzed by gas chromatography and screened for antimicrobial and mosquito larvicidal activity. The leaf essential oil of C. tonkinense, rich in β-phellandrene (23.1%) and linalool (32.2%), showed excellent antimicrobial activity (MIC of 32 μg/mL against Enterococcus faecalis and Candida albicans) and larvicidal activity (24 h LC50 of 17.4 μg/mL on Aedes aegypti and 14.1 μg/mL against Culex quinquefasciatus). Cinnamomum polyadelphum leaf essential oil also showed notable antimicrobial activity against Gram-positive bacteria and mosquito larvicidal activity, attributable to relatively high concentrations of neral (11.7%) and geranial (16.6%). Thus, members of the genus Cinnamomum from Vietnam have shown promise as antimicrobial agents and as potential vector control agents for mosquitoes.

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Synthesis of Silver Nano Particles from Adansonia digitata Leaf Extract and Its Antimicrobial Properties

Annual Research & Review in Biology ◽

10.9734/arrb/2020/v35i730243 ◽

2020 ◽

pp. 10-22

Author(s):

A. O. Akintola ◽

A. M. Azeez ◽

B. D. Kehinde ◽

I. C. Oladipo

Keyword(s):

Staphylococcus Aureus ◽

Antimicrobial Activity ◽

Aspergillus Niger ◽

Pathogenic Bacteria ◽

Leaf Extract ◽

Biomedical Application ◽

Nano Particles ◽

Diffusion Method ◽

Adansonia Digitata ◽

Inhibition Zones

Silver nano particles (AgNPs) were green synthesized using Adansonia digitata leaf extract. The synthesized silver nano particles were characterized in terms of synthesis, size, shape, morphology and capping functionalities by UV-Visible Spectroscopy, Scanning Electron Microscopy (SEM) and Fourier Transform Infrared Spectroscopy (FTIR). Antimicrobial activity of the synthesized silver nano particles was investigated by well diffusion method. The antibacterial activity of the nano particle was studied against Staphylococcus aureus, Escherichia coli, Bacillus subtilis, Pseudomonas aeurigunosa, Salmonella typhi and Klebsiella pneumonae while the antifungal activity was studied against Candida albicans, Aspergillus niger, Penicillum notatum and Rhizopus stolomifer. The synthesized AgNPs was active against all the studied microorganisms. Staphylococcus aureus was the most susceptible bacterium (inhibition zones ranging from 12.00 to 28.00 mm, MIC: 30 µl, MBC: 50 µl) while Aspergillus niger was the most susceptible fungi (inhibition zones ranging from 10.00 to 18.00 mm, MIC: 90 µl, MFC: 120 µl. In conclusion the synthesized silver nanoparticles was found to have antimicrobial activity against the pathogenic bacteria and fungi tested and hence has a great potential in biomedical application for the treatment of microbial infections.

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Chemical Compositions, Phytotoxicity, and Biological Activities of Acorus Calamus Essential Oils from Nepal

Natural Product Communications ◽

10.1177/1934578x1300800839 ◽

2013 ◽

Vol 8 (8) ◽

pp. 1934578X1300800 ◽

Cited By ~ 2

Author(s):

Prabodh Satyal ◽

Prajwal Paudel ◽

Ambika Poudel ◽

Noura S. Dosoky ◽

Debra M. Moriarity ◽

...

Keyword(s):

Antifungal Activity ◽

Aspergillus Niger ◽

Seed Germination ◽

Essential Oils ◽

Brine Shrimp ◽

Biological Activities ◽

Acorus Calamus ◽

Chemical Compositions ◽

Seedling Growth Inhibition ◽

Mcf 7

Four essential oils from the leaf (P23) and rhizomes (P19, P22, P24) of Acorus calamus L., collected from various parts of Nepal, were obtained by hydrodistillation and analyzed by GC-MS. From a total of 61 peaks, 57 compounds were identified among the four essential oils accounting for 94.3%, 96.2%, 97.6%, and 94.1% of the oils, respectively. All of the essential oils were dominated by ( Z)-asarone (78.1%–86.9%). The essential oils also contained ( E)-asarone (1.9%–9.9%) and small amounts of γ-asarone (2.0–2.3%), ( Z)-methyl isoeugenol (1.5–2.0%), and linalool (0.2–4.3%). Allelopathic testing of the rhizome oil showed inhibition of seed germination of Lactuca sativa and Lolium perenne with IC50 values of 450 and 737 μg/mL, respectively. The rhizome essential oil demonstrated stronger seedling growth inhibition of L. perenne than of L. sativa, however. The rhizome oil also showed notable brine shrimp lethality ( LC50 = 9.48 μg/mL), cytotoxic activity (92.2% kill on MCF-7 cells at 100 μg/mL), and antifungal activity against Aspergillus niger (MIC = 19.5 μg/mL).

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Chemical Compositions and Antimicrobial Activity of the Essential Oils of Piper abbreviatum, P. erecticaule and P. lanatum (Piperaceae)

Natural Product Communications ◽

10.1177/1934578x1400901235 ◽

2014 ◽

Vol 9 (12) ◽

pp. 1934578X1400901 ◽

Cited By ~ 1

Author(s):

Wan Mohd Nuzul Hakimi Wan Salleh ◽

Farediah Ahmad ◽

Khong Heng Yen

Keyword(s):

Antimicrobial Activity ◽

Essential Oils ◽

Antimicrobial Agents ◽

Antimicrobial Activities ◽

Dilution Method ◽

Chemical Compositions ◽

Gram Positive Bacteria ◽

Aerial Parts ◽

Ms Analysis ◽

Weak Activity

The study was designed to examine the chemical composition and antimicrobial activities of essential oils extracted from the aerial parts of three Piper species: Piper abbreviatum, P. erecticaule and P. lanatum, all from Malaysia. GC and GC/MS analysis showed qualitative and quantitative differences between these oils. GC and GC-MS analysis of P. abbreviatum, P. erecticaule and P. lanatum oils resulted in the identification of 33, 35 and 39 components, representing 70.5%, 63.4% and 78.2% of the components, respectively. The major components of P. abbreviatum oil were spathulenol (11.2%), ( E)-nerolidol (8.5%) and β-caryophyllene (7.8%), whereas P. erecticaule oil mainly contained β-caryophyllene (5.7%) and spathulenol (5.1%). Borneol (7.5%), β-caryophyllene (6.6%) and α-amorphene (5.6%) were the most abundant components in P. lanatum oil. Antimicrobial activity was carried out using disc diffusion and broth micro-dilution method against nine microorganisms. All of the essential oils displayed weak activity towards Gram-positive bacteria with MIC values in the range 250–500 μg/mL. P. erecticaule oil showed the best activity on Aspergillus niger (MIC 31.3 μg/mL), followed by P. lanatum oil (MIC 62.5 μg/mL). This study demonstrated that the essential oils have potential as antimicrobial agents and may be useful in the pharmaceutical and cosmetics industries.

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ANTIMICROBIAL PROPERTIES OF SEVEN BROWN ALGAE HARVESTED FROM THE COAST OF SIDI BOUZID (EL JADIDA-MOROCCO)

International Journal of Pharmacy and Pharmaceutical Sciences ◽

10.22159/ijpps.2020v12i12.39362 ◽

2020 ◽

pp. 57-62

Author(s):

NAZHA SAMRI ◽

LAILA HSAINE ◽

SOUKAINA ELKAFHI ◽

SAMIRA KHLIFI ◽

SAMIRA ETAHIRI

Keyword(s):

Staphylococcus Aureus ◽

Antimicrobial Activity ◽

Minimum Inhibitory Concentration ◽

Aspergillus Niger ◽

Marine Algae ◽

Inhibitory Concentration ◽

Water Extract ◽

Sidi Bouzid ◽

El Jadida ◽

Algal Extracts

Objective: This work aims at the screening of the antimicrobial activity of the seven brown marine algae of theCoast of Sidi Bouzid (El Jadida-Morocco). Methods: The aim of this study was to evaluate the antimicrobial activity of seven brown marine algae against three Gram-positive bacteria (Staphylococcus epidermidis, Staphylococcus aureus and Streptococcus pyogenes). Three Gram-negative bacteria (Escherichia coli, Pseudomonas aeruginosa and Klebsiella pneumonia) and two fungi (Aspergillus Niger and Candida tropicalis). Thus, 35 algal extracts were prepared with five organic solvents methanol/water, methanol, dichloromethane/methanol, dichloromethane and ethyl acetate. The antibacterial activity was evaluated through the disk diffusion method. Results: Data revealed that the Staphylococcus aureus bacteria was the most sensitive pathogen by showing the highest zone of inhibitions of 20 mm with the lowest Minimum Inhibitory Concentration (MIC) of 2 μgmL⁻¹ methanol/water extract of Cystoseira tamariscifolia. Whereas, antifungal activity, the highest zone of inhibitions of 21 mm and 22 mm with the lowest Minimum Inhibitory Concentration (MIC) of 5 μgmL-¹ was respectively shown in the methanol/water extract of Laminaria ochroleuca against Candida tropicalis and in the dichloromethanolic extract of Sargassum vulgare against Aspergillus niger. Conclusion: The results indicate that these algal extracts can further be analyzed and purified for relevant antibacterial and antifungal compounds which can be used in therapeutics and other applications.

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Antimicrobial activity of bioactive component from flower of linum capitatum kit

Facta universitatis - series Physics Chemistry and Technology ◽

10.2298/fupct0401073i ◽

2004 ◽

Vol 3 (1) ◽

pp. 73-77 ◽

Cited By ~ 1

Author(s):

Slavica Ilic ◽

Sandra Konstantinovic ◽

Zoran Todorovic

Keyword(s):

Escherichia Coli ◽

Staphylococcus Aureus ◽

Pseudomonas Aeruginosa ◽

Antimicrobial Activity ◽

Candida Albicans ◽

Aspergillus Niger ◽

Bioactive Components ◽

Bioactive Component ◽

Bacillus Subtilus ◽

Simplex Virus

Different extracts containing bioactive components and etheric oil of the flowers of Linum capitation kit. (Linacea) of Serbian origin were tested for an Antimicrobial activity against four bacteria (Staphylococcus aureus Escherichia coli, Bacillus subtilus, Pseudomonas aeruginosa), one mold (Aspergillus niger) and one yeast (Candida albicans). The isolated Flavonoids were also tested against Staphylococcus aureus, Escherichia coli Bacillus anhtracis, Pseudomonas aeruginosa, Aspergillus niger, Candida albicans and Herpes simplex virus type.

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Antimicrobial Activity and Analysis of the Essential Oils of Selected Endemic Edible Apiaceae Plants Root from Caspian Hyrcanian Region (North of Iran)

Pharmaceutical Sciences ◽

10.15171/ps.2019.21 ◽

2019 ◽

Vol 25 (2) ◽

pp. 138-144

Author(s):

Azadeh Hamedi ◽

Ardalan Pasdaran ◽

Arsalan Pasdaran

Keyword(s):

Gas Chromatography ◽

Antimicrobial Activity ◽

Essential Oil ◽

Essential Oils ◽

Fatty Acid Esters ◽

Herbal Remedies ◽

Gas Chromatography Mass Spectrometry ◽

Diffusion Method ◽

Chemical Compositions ◽

Root Essential Oil

Background: Different endemic species of Apiaceae that widely grow in Hyrcanian region have long been used as spices and herbal remedies. Chemical compositions and bioactivity of many of these plants have not been studied scientifically. The volatile constituents and antimicrobial activity of four edible Apiaceae plants—Elaeosticta glaucescens Boiss, Malabaila secacul (Mill.) Boiss, Caucalis platycarpos L., and Eryngium caucasicum Trautv—roots were investigated. Methods: Gas chromatography/mass spectrometry (GC–MS) and gas chromatography/flame ionization detection (GC–FID) methods were used for chemical investigation. Antimicrobial potential of the volatile compositions of these roots were investigated using the disc diffusion method on four microorganisms including Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, and Bacillus subtilis. Results: The best minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of these species were revealed for B. subtilis and S. aureus (500 µg/mL for MIC and MBC) followed by E. caucasicum and C. platycarpus, respectively. The main compounds of E. caucasicum root essential oil were hexyl isovalerate (11.0%) and hexyl valerate (10.1%). E. glaucescens root essential oil was mainly composed of 3(10)-caren-4-ol, acetoacetic acid ester (9.8%), octyl isovalerate (8.9%), and octyl acetate (5.7%). In C. platycarpos root, hexyl isovalerate (9.2%) and n-octyl isobutyrate (8.5%) were constituted the major compositions of the essential oil while n-hexyl isobutyrate (8.5%) and hexyl hexanoate (7.8%) were predominant compounds in M. secacul. Conclusion: The essential oils of E. caucasicum and C. platycarpus roots were contained high amount of short chain fatty acid esters (SCFAE) and trans- pinocarvyl acetate. They exhibited moderate antibacterial activity.

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