Effect of emulsifier and droplet size on the antibacterial properties of emulsions and emulsions‐based films containing essential oil compounds

2021 ◽  
Author(s):  
Liao Wei ◽  
Emilie Dumas ◽  
Ghnimi Sami ◽  
Elaissari Abdelhamid ◽  
Adem Gharsallaoui
Keyword(s):  
Essential Oil ◽  
Droplet Size ◽  
Antibacterial Properties ◽  
Essential Oil Compounds

Medicinal Plants: Antibacterial Effects and Chemical Composition of Essential Oil of Foeniculum vulgare

2017 ◽  
Vol 8 (01) ◽  
Author(s):  
Azadeh Foroughi ◽  
Pouya Pournaghi ◽  
Fariba Najafi ◽  
Akram Zangeneh ◽  
Mohammad Mahdi Zangeneh ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Medicinal Plants ◽  
Essential Oil ◽  
Antibacterial Properties ◽  
Screen Test ◽  
Antibacterial Activities ◽  
Gas Chromatography Mass Spectrometry ◽  
Resistant Bacteria ◽  
Antibacterial Effects ◽  
Foeniculum Vulgare

Medicinal plants are considered modern resources for producing agents that could act as alternatives to antibiotics in demeanor of antibiotic-resistant bacteria. The aim of the study was to evaluate the chemical composition and antibacterial activities of essential oil of Foeniculum vulgare (FV) against Pseudomonas aeruginosa and Bacillus subtilis. Gas chromatography mass spectrometry was done to specify chemical composion. As a screen test to detect antibacterial properties of the essential oil, agar disk and agar well diffusion methods were employed. Macrobroth tube test was performed to determinate MIC. The results indicated that the most substance found in FV essential oil was Trans-anethole (47.41 %), also the essential oil of FV with 0.007 g/ml concentration has prevented P. aeruginosa and with 0.002 g/ml concentration has prevented B. subtilis from the growth. Thus, the research represents the antibacterial effects of the medical herb on test P. aeruginosa and B. subtilis. We believe that the article provide support to the antibacterial properties of the essential oil. The results indicate the fact that the essential oil from the plant can be useful as medicinal or preservatives composition.

scholarly journals Edible Films from Carrageenan/Orange Essential Oil/Trehalose—Structure, Optical Properties, and Antimicrobial Activity

Polymers ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 332
Author(s):  
Jancikova Simona ◽  
Dordevic Dani ◽  
Sedlacek Petr ◽  
Nejezchlebova Marcela ◽  
Treml Jakub ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Essential Oil ◽  
Antibacterial Properties ◽  
Edible Films ◽  
Attenuated Total Reflectance ◽  
Practical Application ◽  
Film Properties ◽  
Gram Positive Bacteria ◽  
Edible Packaging ◽  
Orange Essential Oil

The research aim was to use orange essential oil and trehalose in a carrageenan matrix to form edible packaging. The edible packaging experimentally produced by casting from an aqueous solution were evaluated by the following analysis: UV-Vis spectrum, transparency value, transmittance, attenuated total reflectance Fourier-Transform spectroscopy (FTIR), scanning electron microscopy (SEM) and antimicrobial activity. The obtained results showed that the combination of orange essential oil with trehalose decreases the transmittance value in the UV and Vis regions (up to 0.14% ± 0.02% at 356 nm), meaning that produced films can act as a UV protector. Most produced films in the research were resistant to Gram-positive bacteria (Staphylococcus aureus subsp. aureus), though most films did not show antibacterial properties against Gram-negative bacteria and yeasts. FTIR and SEM confirmed that both the amount of carrageenan used and the combination with orange essential oil influenced the compatibility of trehalose with the film matrix. The research showed how different combinations of trehalose, orange essential oils and carrageenan can affect edible film properties. These changes represent important information for further research and the possible practical application of these edible matrices.

scholarly journals The Biological Activity of Monarda didyma L. Essential Oil and Its Effect as a Diet Supplement in Mice and Broiler Chicken

Molecules ◽  
2021 ◽  
Vol 26 (11) ◽  
pp. 3368
Author(s):  
Héloïse Côté ◽  
André Pichette ◽  
Alexis St-Gelais ◽  
Jean Legault
Keyword(s):  
Body Weight ◽  
Essential Oil ◽  
Feed Efficiency ◽  
Body Weight Gain ◽  
Antibacterial Properties ◽  
Resistant Bacteria ◽  
Growth Promoters ◽  
Antibiotic Growth Promoters ◽  
Monarda Didyma

The use of growth-promoting antibiotics in livestock faces increasing scrutiny and opposition due to concerns about the increased occurrence of antibiotic-resistant bacteria. Alternative solutions are being sought, and plants of Lamiaceae may provide an alternative to synthetic antibiotics in animal nutrition. In this study, we extracted essential oil from Monarda didyma, a member of the Lamiaceae family. We examined the chemical composition of the essential oil and then evaluated the antibacterial, antioxidant, and anti-inflammatory activities of M. didyma essential oil and its main compounds in vitro. We then evaluated the effectiveness of M. didyma essential oil in regard to growth performance, feed efficiency, and mortality in both mice and broilers. Carvacrol (49.03%) was the dominant compound in the essential oil extracts. M. didyma essential oil demonstrated antibacterial properties against Escherichia coli (MIC = 87 µg·mL−1), Staphylococcus aureus (MIC = 47 µg·mL−1), and Clostridium perfringens (MIC = 35 µg·mL−1). Supplementing the diet of mice with essential oil at a concentration of 0.1% significantly increased body weight (+5.4%) and feed efficiency (+18.85%). In broilers, M. didyma essential oil significantly improved body weight gain (2.64%). Our results suggest that adding M. didyma essential oil to the diet of broilers offers a potential substitute for antibiotic growth promoters.

scholarly journals Antibacterial and antibiofilm activities of cinnamon essential oil nanoemulsion against multi-species oral biofilms

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yeo-Jin Jeong ◽  
Hee-Eun Kim ◽  
Su-Jin Han ◽  
Jun-Seon Choi
Keyword(s):  
Essential Oil ◽  
Repeated Measures ◽  
Antibacterial Properties ◽  
Three Solutions ◽  
Bacterial Colony ◽  
Biofilm Model ◽  
Oral Biofilms ◽  
Cinnamon Essential Oil ◽  
Cocamidopropyl Betaine ◽  
Bovine Enamel

AbstractCinnamon essential oil (CEO) has antibacterial properties, but its ability to suppress the formation of multi-species oral biofilms has not been fully elucidated. This study evaluated the antibacterial and antibiofilm activities of cinnamon essential oil nanoemulsion (CEON) against oral biofilms formed using a microcosm biofilm model. The biofilms were formed on bovine enamel specimens over a 7-day period, during which all specimens were treated with one of three solutions: 5% CEON (n = 35), 0.5% cocamidopropyl betaine (n = 35), or 0.12% chlorhexidine gluconate (CHX; n = 35). Antibacterial and antibiofilm activities were determined by the red/green ratios (R/G values) of 7-day-old mature biofilms photographed with quantitative light-induced fluorescence-digital, the number of aciduric bacterial colony-forming units (CFUs) within each biofilm, and the absorbance of bacterial suspensions. One-way and repeated-measures analysis of variance were performed to compare differences among the three solutions. R/G values were lowest in the 0.12% CHX group, but not significantly differ from the 5% CEON group. The number of CFUs and absorbance were lowest in the 5% CEON group. This study showed that nanoemulsified CEO inhibited the maturation of multi-species oral biofilms and the growth of oral microorganisms in biofilms, including aciduric bacteria that cause dental caries.

scholarly journals Anti-biofilm and Virulence Factor-Reducing Activities of Essential Oils and Oil Components as a Possible Option for Bacterial Infection Control

Planta Medica ◽  
2020 ◽  
Vol 86 (08) ◽  
pp. 520-537 ◽  
Author(s):  
Jürgen Reichling
Keyword(s):  
Quorum Sensing ◽  
Essential Oil ◽  
Essential Oils ◽  
Virulence Factor ◽  
Model Organisms ◽  
Regulation System ◽  
Expression Of Genes ◽  
Reporter Strains ◽  
Violacein Production ◽  
Essential Oil Compounds

AbstractPathogenic biofilm-associated bacteria that adhere to biological or nonbiological surfaces are a big challenge to the healthcare and food industries. Antibiotics or disinfectants often fail in an attempt to eliminate biofilms from those surfaces. Based on selected experimental research, this review deals with the potential biofilm-inhibiting, virulence factor-reducing, and biofilm-eradicating activities of essential oils and single essential oil compounds using Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, and Chromobacterium violaceum as model organisms. In addition, for the bacteria reviewed in this overview, different essential oils and essential oil compounds were reported to be able to modulate the expression of genes that are involved in the formation of autoinducer molecules, biofilms, and virulence factors. The anti-quorum sensing activity of some essential oils and single essential oil compounds was demonstrated using the gram-negative bacterium C. violaceum. Reporter strains of this bacterium produce the violet-colored compound violacein whose synthesis is regulated by quorum sensing autoinducer molecules called acylhomeserinlactones. Of great interest was the discovery that enantiomeric monoterpenes affected the quorum sensing regulation system in different ways. While the (+)-enantiomers of carvone, limonene, and borneol increased violacein formation, their (−)-analogues inhibited violacein production.For the successful eradication of biofilms and the bacteria living inside them, it is absolutely necessary that the lipophilic volatile substances can penetrate into the aqueous channels of biofilms. As shown in recent work, hydrophilic nano-delivery systems encapsulating essential oils/essential oil compounds with antibacterial effects may contribute to overcome this problem.

Effects of Foeniculum vulgare essential oil compounds, fenchone and limonene, on experimental wound healing

2017 ◽  
Vol 92 (4) ◽  
pp. 274-282 ◽  
Author(s):  
I Keskin ◽  
Y Gunal ◽  
S Ayla ◽  
B Kolbasi ◽  
A Sakul ◽  
...  
Keyword(s):  
Wound Healing ◽  
Essential Oil ◽  
Foeniculum Vulgare ◽  
Essential Oil Compounds

Essential oil compounds in a historical sample of marjoram (Origanum majorana L., Lamiaceae)

2002 ◽  
Vol 17 (3) ◽  
pp. 175-180 ◽  
Author(s):  
Johannes Novak ◽  
Jan Langbehn ◽  
Friedrich Pank ◽  
Chlodwig M. Franz
Keyword(s):  
Essential Oil ◽  
Historical Sample ◽  
Origanum Majorana ◽  
Essential Oil Compounds

Chemotaxonomic value of the essential oil compounds in species of Teucrium pumilum aggregate

2000 ◽  
Vol 55 (5) ◽  
pp. 397-401 ◽  
Author(s):  
Isabel Pérez ◽  
Maria Amparo Blázquez ◽  
Herminio Boira
Keyword(s):  
Essential Oil ◽  
Essential Oil Compounds

Effect of Plant Essential Oils and Their Major Constituents on Cypermethrin Tolerance Associated Detoxification Enzyme Activities in Spodoptera litura (Lepidoptera: Noctuidae)

2019 ◽  
Vol 112 (5) ◽  
pp. 2167-2176 ◽  
Author(s):  
Torranis Ruttanaphan ◽  
Wanchai Pluempanupat ◽  
Chutikan Aungsirisawat ◽  
Polnarong Boonyarit ◽  
Gaelle Le Goff ◽  
...  
Keyword(s):  
Essential Oil ◽  
Synergistic Effect ◽  
Essential Oils ◽  
Spodoptera Litura ◽  
Cytochromes P450 ◽  
Detoxification Enzymes ◽  
Plant Essential Oils ◽  
Activity Measurements ◽  
Lepidoptera Noctuidae ◽  
Essential Oil Compounds

Abstract Essential oils are well known to act as biopesticides. This research evaluated the acute toxicity and synergistic effect of essential oil compounds in combination with cypermethrin against Spodoptera litura Fabricius (Lepidoptera: Noctuidae). The effects of distillation extracts of essential oils from Alpinia galanga Zingiberaceae (Zingiberales) rhizomes and Ocimum basilicum Lamiaceae (Lamiales) leaves; one of their primary essential oil compounds 1,8-cineole; and linalool were studied on second-instar S. litura by topical application under laboratory conditions. The results showed that A. galanga had the highest control efficiency, whereas1,8-cineole provided a moderate efficacy. The mixtures of linalool, 1,8-cineole, O. basilicum, or A. galanga with cypermethrin were synergistic on mortality. Activity measurements of the main detoxification enzymes show that linalool and 1,8-cineole inhibit the activity of cytochromes P450 and carboxylesterases, which could explain their synergistic effect. Based on our results, the use of these mixtures represents an ideal eco-friendly approach, helping to manage cypermethrin resistance of S. litura.

scholarly journals Chemical composition and antibacterial activities of essential oils from fruits of Melicope pteleifolia (Champ. Ex Benth.) T.G. Hartley grown in Lam Dong Province, Vietnam

2020 ◽  
Vol 42 (3) ◽  
Author(s):  
Hoang Thi Binh ◽  
Tran Thi Bao Tram ◽  
Do Ngoc Dai ◽  
Vuong Thuy Tien ◽  
Le Minh Tam ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Chemical Composition ◽  
Essential Oil ◽  
Streptococcus Pyogenes ◽  
Antibacterial Properties ◽  
Antibacterial Activities ◽  
Gas Chromatography Mass Spectrometry ◽  
Diffusion Method ◽  
Aerial Parts ◽  
Agar Well Diffusion Method

In the present study, chemical composition and antibacterial properties of essential oil obtained from the aerial parts of the Melicope pteleifolia (Champ. ex Benth.) T.G Hartley in Dalat were evaluated. Essential oil was isolated through hydro-distillation. Twenty-nine constituents comprising 100% of the essential oil were characterized by gas chromatography/mass spectrometry (GC-MS) techniques. The major compounds in the essential oil were (+)-Sabinene (34.73%), Cis-α-bergamotene (13.15%), Z-α-trans-bergamotol (5.28%), β-mycrene (4.98%), and 1,3,6-octatriene, 3,7-dimethyl-(4.71%). Antibacterial activities of Melicope pteleifolia essential oil were investigated against Gram-positive and-negative bacteria. Results showed significant activities against Streptococcus pyogenes and Escherichia coli using an agar well diffusion method. The application of this essential oil in preventing and eliminating bacteria could be useful in fields as medicine and cosmetics. 

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