Chemical composition, antioxidant, and antimicrobial activities of two essential oils from Algerian propolis

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Safia Boulechfar ◽  
Amar Zellagui ◽  
Meltem Asan-Ozusaglam ◽  
Chawki Bensouici ◽  
Ramazan Erenler ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oils ◽  
Pathogenic Bacteria ◽  
Antioxidant Properties ◽  
Antimicrobial Activities ◽  
Gas Chromatography Mass Spectrometry ◽  
Diffusion Method ◽  
Reducing Ability ◽  
Antioxidant And Antimicrobial Activity ◽  
Fungistatic Effect

Abstract This study aims to investigate the chemical composition, antioxidant, and antimicrobial activity of two essential oils (EOs) from Algerian propolis. The volatile constituents were analyzed by gas chromatography-mass spectrometry. Fifty components were identified from the oils. The major components were found to be: cedrol (17.0%), β-eudesmol (7.7%), and α-eudesmol (6.7%) in EO of propolis from Oum El Bouaghi (EOPO) whilst α-pinene (56.1%), cis-verbenol (6.0%), and cyclohexene,3-acetoxy-4-(1-hydroxy-1-methylethyl)-1-methyl (4.4%) in EO of propolis from Batna (EOPB). The antioxidant properties of EOPO and EOPB were determined using 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonate) (ABTS•+) and cupric reducing antioxidant capacity (CUPRAC assays), respectively. Both EOs had more cupric ion reducing ability than scavenging ABTS•+ radicals. The antimicrobial potential of the two EOs against eight pathogens was assayed by the agar diffusion method and the mode of action was determined by microdilution assay. The results revealed that EOPB was bactericidal for all tested pathogenic bacteria and fungicidal for Candida albicans ATCC 10231, whereas, EOPO showed bacteriostatic effect against Escherichia coli O157:H7 and Pseudomonas aeruginosa ATCC27853 and fungistatic effect against C. albicans ATCC 10231. Thus, the obtained results suggest the important use of propolis EOs as preservative agents.

scholarly journals Volatile Compounds and Antioxidant and Antimicrobial Activities of Selected Citrus Essential Oils Originated from Nepal

Molecules ◽  
2021 ◽  
Vol 26 (21) ◽  
pp. 6683
Author(s):  
Devi Prasad Bhandari ◽  
Darbin Kumar Poudel ◽  
Prabodh Satyal ◽  
Karan Khadayat ◽  
Sital Dhami ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Citrus Sinensis ◽  
Antioxidant Properties ◽  
Antimicrobial Activities ◽  
Gas Chromatography Mass Spectrometry ◽  
Diffusion Method ◽  
Citrus Species ◽  
Citrus Peel ◽  
Antioxidant And Antimicrobial Activities

Citrus species of plants are among the most commercially cultivated crops, mainly for their fruit. Besides, the generally consumed flesh inside the fruit, the peel is quite important too. Essential oils extracted from the peel have a history of being used by humankind for centuries. These essential oils are rich in antioxidants and antimicrobial agents. Comparative investigation of volatile constituents, and antioxidant and antimicrobial activities were undertaken. The essential oils were evaluated through gas chromatography-mass spectrometry (GC–MS), and enantiomeric composition by chiral GC–MS. Similarly, the antioxidant properties were evaluated by 2,2-diphenyl-1-picrylhydrazyl scavenging assay, and antimicrobial activities were assayed using the disk diffusion method. The highest extraction yield of 1.83% was observed in Citrus sinensis Osbeck. GC–MS analysis showed limonene (63.76–89.15%), γ-terpinene (0.24–6.43%), β-pinene (0.15–6.09%), linalool (0.35–3.5%), sabinene (0.77–2.17%), myrcene (0.74–1.75%), α-terpineol (0.28–1.15%), and α-pinene (0.2–0.58%) as the major constituents of the essential oil of the Citrus species studied. For the first time, through our study, chiral terpenoids have been observed from Citrus grandis Osbeck essential oil. The order of antioxidant activity is as follows: Citrus grandis Osbeck red flesh > Citrus reticulata Blanco > Citrus sinensis Osbeck > Citrus grandis Osbeck white flesh. Except for Citrus grandis Osbeck white flesh (52.34 µL/mL), all samples demonstrated stronger antioxidant activities than those of the positive control, quercetin (5.60 µL/mL). Therefore, these essential oils can be used as a safe natural antioxidant to prevent product oxidation. Likewise, citrus peel essential oil showed antimicrobial activity against tested bacterial strains, albeit marginal.

scholarly journals Chemical composition, antimicrobial and antioxidant activities of essential oils from the receptacle of sunflower (Helianthus annuus L.)

2020 ◽  
Author(s):  
Xinsheng Liu ◽  
Xinlu Li ◽  
Zian Qiao ◽  
Wannan Li ◽  
Bo Gao ◽  
...  
Keyword(s):  
Candida Albicans ◽  
Chemical Composition ◽  
Essential Oils ◽  
Helianthus Annuus ◽  
Antioxidant Activities ◽  
Antimicrobial Activities ◽  
Gas Chromatography Mass Spectrometry ◽  
E Coli ◽  
Reducing Ability ◽  
Antibacterial And Antifungal

AbstractSunflower (Helianthus annuus L.) contains active ingredients, such as flavonoids, alkaloids and tannins. However, few studies have focused on essential oils from the receptacle of sunflower (SEOs). The chemical composition, antimicrobial and antioxidant activities of SEOs were assessed whether SEOs could be used as nature preservatives and medicines. The extraction rate of SEOs was 0.4% by using hydro-distillation and solvent with petroleum ether, which is much higher than that by only using hydro-distillation (0.2%) in the previous study. A total of 81 volatile constituents of SEOs were identified by gas chromatography-mass spectrometry (GC-MS). The main constituents of SEOs were α-pinene (31.17%), calamenene (5.66%), α-terpineol (4.71%), verbenone (3.15%), kaur-16-ene (2.52%) and terpinolene (1.47%). The antimicrobial activities of SEOs were assessed against three bacteria (E. coli, P. aeruginosa, and S. aureus) and two fungi (S. cerevisiae and Candida albicans). The MIC of SEOs against P. aeruginosa and S. aureus was 0.2 mg/mL. The MIC of SEOs against S. cerevisiae was 3.2 mg/mL. The MIC of SEOs against E. coli and Candida albicans was 6.4 mg/mL. The results showed that SEOs had high antibacterial and antifungal actions. The antioxidant activity was determined with three different analytical assays (DPPH, ABTS and iron reducing ability). The results of antioxidant activities showed that SEOs had high antioxidant activities. The results proved that SEOs could be used as natural preservatives and medicines, due to its excellent antimicrobial and antioxidant activities.

Chemical composition and anti-microbial analysis of Mentha arvensis L. and Thymus linearis Benth. essential oils of leaves

2021 ◽  
Vol 26 (5) ◽  
pp. 2893-2900
Author(s):  
SAJIDA BIBI ◽  
◽  
SHAHAB ALI ◽  
SHAHI DIN ◽  
IKRAM ULLAH ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oils ◽  
Compositional Data ◽  
Antimicrobial Activities ◽  
Gas Chromatography Mass Spectrometry ◽  
Diffusion Method ◽  
Bacterial Strains ◽  
Mentha Arvensis ◽  
Microbial Analysis ◽  
First Time

This study was performed to evaluate the chemical composition of the essential oils of Mentha arvensis and Thymus linearis and their antimicrobial activities. The complexity of the essential oils is a basic challenge for determining their reliable and accurate compositional data. Rapid advances in spectroscopic and chromatographic techniques have resolved this challenge to a large extent by examining essential oils. Essential oils were analyzed through Gas Chromatography-Mass Spectrometry (GC-MS) following extraction through steam distillation from their leaves for the first time in Miandam, District Swat, KP, Pakistan. The GC-MS analysis revealed 26 and 25 components in the essential oil of Mentha arvensis and Thymus linearis respectively. The major components were carvone (23.53%), P-Cymen-2-ol (20.35%), and caryophyllene oxide (18.81%) in Mentha arvensis but Thymus linearis has Thymol (2-isopropyl-5-methyl phenol) (40%), O-Cymene (2-Isopropyltoluene) (14.95%) and beta-bisbolene (12.54%). The essential oils of both plants showed bactericidal activities against five different bacterial strains (i.e. Escherichia coli, Staphylococcus aureus, Klesiella pneumonia, Bacillus subtilis, and Pseudomonas aeruginosa) during disc diffusion method and therefore it is suggested that they may be used as a natural antiseptic and could play important roles in food and pharmaceutical industry.

Chemical composition and biological activities of leaf and fruit essential oils from Eucalyptus camaldulensis

2017 ◽  
Vol 72 (11-12) ◽  
pp. 483-489 ◽  
Author(s):  
Gulden Dogan ◽  
Nazan Kara ◽  
Eyup Bagci ◽  
Seher Gur
Keyword(s):  
Gas Chromatography ◽  
Chemical Composition ◽  
Essential Oils ◽  
Biological Activities ◽  
Eucalyptus Camaldulensis ◽  
Gas Chromatography Mass Spectrometry ◽  
Diffusion Method ◽  
Leaf Oil ◽  
Fruit Oil ◽  
Antibacterial And Antifungal

AbstractThe chemical composition of the essential oils from the leaves and fruit ofEucalyptus camaldulensisgrown in Mersin, Turkey was analyzed using gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS) techniques. The biological activities (antibacterial and antifungal) were examined using the agar well diffusion method. The main leaf oil constituents werep-cymene (42.1%), eucalyptol (1,8-cineole) (14.1%), α-pinene (12.7%) and α-terpinol (10.7%). The main constituents of the fruit oil were eucalyptol (1,8-cineole) (34.5%),p-cymene (30.0%), α-terpinol (15.1%) and α-pinene (9.0%). Our results showed that both types of oils are rich in terms of monoterpene hydrocarbons and oxygenated monoterpenes. The leaf and fruit essential oils ofE. camaldulensissignificantly inhibited the growth of Gram-positive (Staphylococcus aureusandBacillus subtilis) and Gram-negative (Escherichia coliandStreptococcussp.) bacteria (p<0.05). The oils also showed fungicidal activity againstCandida tropicalisandC. globrata. Leaf essential oils showed more activity than fruit essential oils, probably due to the higher p-cymene concentration in leaves.

scholarly journals Antimicrobial effect of essential oils of some Fijian medicinal plant leaves on pathogenic bacteria

2016 ◽  
Vol 34 (2) ◽  
pp. 35
Author(s):  
Prayna P. P. Maharaj ◽  
Riteshma Devi ◽  
Surendra Prasad
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Antimicrobial Agent ◽  
Essential Oils ◽  
Pathogenic Bacteria ◽  
Antibacterial Properties ◽  
Antimicrobial Activities ◽  
Diffusion Method ◽  
Gram Negative Bacteria ◽  
Gram Positive ◽  
Gram Negative

Fiji is highly populated with plants containing essential oils (EO). The essential oils extracted from the leaves of the selected Fijian leafy plants were screened against two Gram-negative bacteria (Salmonella typhimurium, Pseudomonas aeruginosa) and three Gram-positive bacteria (Staphylococcus aureus, Enterococcus faecalis and Bacillus subtilis). The agar diffusion method was used to examine the antimicrobial activities of the extracted EO. All the EO tested showed antibacterial properties against one or more strains while none of the EO was active against Pseudomonas aeruginosa. Viburnum lantana (Wayfaring tree), Annona muricata (Soursop), Coleus amboinicus (Spanish thyme) and Cinnamomum zeylancium (Cinnamon) showed good inhibition against both Gram-positive and Gram-negative bacteria and proved as worthy source of antimicrobial agent. These findings will help the Pacific population to use the studied plants leaves as antimicrobial agent.

scholarly journals Chemical composition, antioxidant effects and antimicrobial activities of some spices essential oils on food pathogenic bacteria

2016 ◽  
Vol 15 (16) ◽  
pp. 649-656 ◽  
Author(s):  
M C Ndoye Foe Florentine ◽  
A Nyegue Maximilienne ◽  
L S Kamdem Sylvain ◽  
H S Essama Riwom ◽  
Etoa Fran ccedil ois Xavier
Keyword(s):  
Chemical Composition ◽  
Essential Oils ◽  
Pathogenic Bacteria ◽  
Antimicrobial Activities ◽  
Antioxidant Effects

scholarly journals Chemical Composition and Antibacterial Activity of the Essential Oil Isolated From Flos Lonicerae (Flower Buds of Lonicera macranthoides Hand.-Mazz.)

2021 ◽  
Vol 16 (4) ◽  
pp. 1934578X2110083
Author(s):  
Sun Tao ◽  
Shi Yun ◽  
Mao Yinxue ◽  
Yang Xin ◽  
Qin Kunming
Keyword(s):  
Antibacterial Activity ◽  
Chemical Composition ◽  
Essential Oils ◽  
Antimicrobial Effect ◽  
Gas Chromatography Mass Spectrometry ◽  
Diffusion Method ◽  
Flower Buds ◽  
Chinese Medicinal Herb ◽  
Flos Lonicerae ◽  
Lonicera Macranthoides

Flos Lonicerae (FL, flower buds of Lonicera macranthoides Hand.-Mazz.) is a traditional Chinese medicinal herb that is officially listed in the Chinese Pharmacopoeia. The aim of this study was to screen the chemical composition and to study the antibacterial activity of essential oils of Flos Lonicerae. The chemical composition of the essential oils was investigated using gas chromatography-mass spectrometry (GC-MS). The antibacterial activity was evaluated by the disc diffusion method to determine minimum inhibitory concentration (MIC). The major compounds of Flos Lonicerae essential oils were linalool (10.4%), palmitic acid (8.0%), geraniol (6.9%), hexanal (2.5%), and α-terpineol (2.2%). Flos Lonicerae essential oils demonstrated antibacterial activity against Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa. The results of this study suggest that the essential oils of Flos Lonicerae have an interesting antimicrobial effect and may be a new potential source for a natural antimicrobial applied in the pharmaceutical field.

scholarly journals Phytochemical Analysis, Antimicrobial and Antioxidant Properties of Thymus zygis L. and Thymus willdenowii Boiss. Essential Oils

Plants ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 15
Author(s):  
Fatima zahrae Radi ◽  
Mohamed Bouhrim ◽  
Hamza Mechchate ◽  
Mohammed Al-zahrani ◽  
Ashraf Ahmed Qurtam ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oils ◽  
Antimicrobial Activities ◽  
Shigella Dysenteriae ◽  
Geranyl Acetate ◽  
Diffusion Method ◽  
Phytochemical Analysis ◽  
Moderate Activity ◽  
Antioxidant Power ◽  
Thymus Zygis

Essential oils (EOs) are chemical products produced by odoriferous glands from a variety of plants. These essential oils have many health benefits: antiseptic, anti-inflammatory and antimicrobial activities. So due to these medicinal properties, the present study was designed to analyze essential oils of Thymus zygis L. and Thymus willdenowii Boiss. for their chemical composition and biological activities. These two thyme species were collected from the region of Ifrane, Middle Atlas of Morocco. The EO was obtained by hydrodistillation, and the yields were 5.25% for T. zygis and 3.00% for T. willdenowii. The chemical composition of the EOs was analyzed by gas chromatography coupled with mass spectrometry (GC-MS), and the results showed that T. zygis EO is dominated by carvacrol (52.5%), o-cymene (23.14%), and thymol (9.68%), while the EO of T. willdenowii contains germacrene D (16.51%), carvacrol (16.19%), and geranyl acetate (8.35%) as major compounds. The antioxidant activity assessed by Diphenylpicrylhydrazyl (DPPH) and ferric reducing antioxidant power (FRAP) assays revealed that both EOs have excellent antioxidant activities; by DPPH it resulted in IC50 = 6.13 ± 0.11 for T. zygis and 6.78 ± 0.3 µg/mL for T. willdenowii, while the one by FRAP yielded EC50 = 2.46 ± 0.01 (T. zygis) and 5.17 ± 0.2 (T. willdenowii) µg/mL. The antimicrobial activity of the two essential oils was evaluated against six bacterial strains and five fungal strains by the disk diffusion method to determine the Minimum Inhibitory Concentration (MIC), Minimum Bactericidal Concentration (MBC) and Minimum Fungicidal Concentration (MFC). The EOs revealed variable antimicrobial activities against the different tested microbial strains and showed strong antimicrobial activities, even against strains known as multi-resistant to antibiotics (Acinetobacter baumannii) at low concentrations (2 µL/mL). T. zygis EO showed the most powerful activity against all the studied bacteria, while that of T. willdenowii recorded moderate activity when tested against Shigella dysenteriae and Salmonella Typhi. With inhibition diameters that vary between 75 mm and 84 mm for concentrations of 2 µL/mL up to 12 µL/mL, S. aureus was shown to be the most sensitive to T. zygis EO. For the antifungal activity test, T. zygis EO showed the best inhibition diameters compared to T. willdenowii EO. These results showed that T. zygis EO has more powerful antioxidant and antimicrobial activities than T. willdenowii EO, therefore, we deduce that thyme EOs are excellent antioxidants, they have strong antimicrobial properties, and may in the future represent new sources of natural antiseptics that can be used in pharmaceutical and food industry.

scholarly journals Characterization of the Volatile Components of Essential Oils of Selected Plants in Kenya

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Lydia G. Mugao ◽  
Bernard M. Gichimu ◽  
Phyllis W. Muturi ◽  
Simon T. Mukono
Keyword(s):  
Chemical Composition ◽  
Essential Oils ◽  
Antimicrobial Activities ◽  
Gas Chromatography Mass Spectrometry ◽  
Volatile Components ◽  
Food Industries ◽  
Extraction And Purification ◽  
Major Chemical ◽  
Scanty Information ◽  
Test Plants

Essential oils are secondary metabolites that plants produce for protection from pests and predators, attraction of pollinators, and seed dispersal. The oils are made up of a mixture of compounds that give a characteristic flavour and odour. Currently, essential oils are receiving great attention in research for their phytochemical and antimicrobial activities. However, there is scanty information on the chemical composition of many plants. This study provides a detailed analysis of the chemical composition of essential oils of ginger, garlic, tick berry, and Mexican marigold in Kenya. The essential oils were extracted by steam distillation and analysed by gas chromatography–mass spectrometry. The study identified a total of 52 different chemical classes from the essential oils of the four different plants that were analysed. Their percentage composition was also found to vary between the test plants. The essential oils of Mexican marigold constituted the highest composition of the identified chemical classes at 71.2%, followed by ginger at 55.8%, while both tick berry and garlic oils constituted 53.8% of the total classes identified. Terpenes constituted the highest composition in the essential oils of all the four test plants. Other major chemical classes included esters, ketones, organosulfurs, alkanes, cycloalkanes, steroids, aromatic hydrocarbons, and alkanols. Some of these chemical compounds have been shown to have a huge utility potential in biopesticides, pharmaceutical, and food industries, and hence, their industrial extraction and purification from the essential oils of these plants are recommended.

Antibacterial Activity of Rosmarinus officinalis and Lavandula angustifolia Essential Oils Against Selected Poultry Pathogenic Bacteria

2021 ◽  
Vol 1 (30) ◽  
pp. 49-57
Author(s):  
F.Moukhfi N.Chadli
Keyword(s):  
Antimicrobial Activity ◽  
Antibacterial Activity ◽  
Essential Oils ◽  
Pathogenic Bacteria ◽  
Antioxidant Properties ◽  
Rosmarinus Officinalis ◽  
Poultry Feed ◽  
Gas Chromatography Mass Spectrometry ◽  
Bacterial Strains ◽  
Lavandula Angustifolia

Abstract- Poultry is the host of many species of bacteria and the intestine is the privileged place of their colonization and their persistence. These bacteria are the cause of several cases of food poisoning in humans through the consumption of eggs or soiled chicken meat. In addition, these bacteria develop resistance to antibiotics that are adjusted to poultry feed as growth promoters. Essential oils are considered as important secondary metabolites for plant defense by their antimicrobial and antioxidant properties. These essential oils may be considered as a source of natural antimicrobials for the conservation of poultry food. The aim of our study is to isolate and identify bacterial strains isolated from poultry and to determine the antibacterial and antioxidant activities of Rosmarinus officinalis and Lavandula angustifolia essential oils on these bacterial strains.Essential oils of Moroccan Rosmarinus officinalis and Lavandula angustifolia were extracted by hydrodistillation. The identification of their chemical composition are performed by gas chromatography-mass spectrometry. Antimicrobial activity of extracted essential oils against Staphylococcus aureus, Clostridium perfringens, Escherichia coli and Salmonella entiritidis was evaluated by aromatogram test and Microdilution in a liquid medium. The identification of strains are performed by several test: Gram staining, Kligler test, Catalase test, test Mobility and Api Gallery 20E. The results show that essential oils tested have a considerable antibacterial activity against all isolated bacterial strains. Keywords: Poultry feed, Essential oils, Bacterial strains, Antibiotic resistance, Antimicrobial activity.

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