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1

Anti-babesial potential and chemical composition of essential oil from yarrow Achillea millefolium

100%

Guz L., Wawrzykowski J., Adaszek Ł., Guz L., Wawrzykowski J., Adaszek Ł.

Polish Journal of Veterinary Sciences

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2021

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vol. 24

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issue 1

2

Essential oil composition and variability of Hypericum perforatum L. from wild population in Kosovo

100%

Hajdari A., Mustafa B., Nebija D., Kashtanjeva A., Widelski J., Glowniak K., Novak J.

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vol. 27

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issue 1

51-54

EN

Aerial parts of Hypericum perforatum L. (Hypericaceae) were collected from five wild populations in Kosovo, with aim to investigate the chemical composition and natural variation of essential oils between wild populations. This species could be considered of economic potential as it is widespread in Kosovo, on the other hand H. perforatum is one of the best-known medicinal herbs used in Kosovo folk medicine. Essential oils were obtained by steam distillation and analysed by GC-FID and GC-MS. Sixty-seven components were identified. The yields of essential oils differed depending on the population and ranged from 0.04 to 0.26% based on dry weight. The aerial parts of H. perforatum were characterized by the following main constituents: 2-methyl-octane (1.1-15.5%), α-pinene (3.7-36.5%), β-caryophyllene (1.2-12.4%), caryophyllene oxide (3.3-17.7%) and n-tetradecanol (3.6- 10.4%). Hierarchical cluster analysis revealed that the concentration of components depends on the origin of the plant populations, thus α-pinene and 2-methyl-octane were present in the highest concentration in population originating from Gjakove, Prizren and Ferizaj, whereas in the populations originating from Peje and Prishtine the most abundant constituents were caryophyllene oxide, β-caryophyllene and n-tetradecanol. Further investigation is needed to establish the natural variability and chemopolymorphism of this species in the territory of Kosovo, which should be supported by molecular level analyses.

3

Inhibitory activities of essential oils against Babesia canis

100%

Guz L., Ziętek J., Puk K., Adaszek Ł., Guz L., Ziętek J., Puk K., Adaszek Ł.

Polish Journal of Veterinary Sciences

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2020

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vol. 23

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issue 1

4

Antimicrobial Activity of the Essential oil of Thymus capitatus against Helicobacter pylori

100%

güvenir m., Hanoglu A., Hanoglu D., Suer K., Baser H. C., Ozkum Yavuz D., Sanlıdag T.

Acta Poloniae Pharmaceutica - Drug Research

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2020

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vol. 77

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issue 1

155-160

EN

Helicobacter pylori (H.pylori) is an infective agent and the main resourceful factor of chronic, active ot type B gastritis, peptic and duodenal ulcer, gastric carcinoma and mucosa-associated lymphoid tumors. Nowadays, pharmological treatment of H. pylori infections attract attention beside antibiotic treatment. The aim of this study is to analyse the chemical composition of the essential oils of Thymus capitatus and the antimicrobial activity against H. pylori. Aerial parts of wild growing plant materials were collected during flowering stage from three different locations. Essential oil composition analyses were performed simultaneously by GC-FID and GC-MS systems. The antimicrobial activity of the essential oil were tested by broth dilution method. The thymol percentage was determined as more than half of the essential oil composition of Thymus capitatus-Yedidalga (51.9%) and Thymus capitatus –Yıldırım (57.1%); however, the composition of thymol was 47.2% followed by 15.1% (p-cymene), 10.0% (-terpinene) and 5.7% (carvacrol) for Thymus capitatus-Boğaz/Girne.The essential oil from Thymus capitatus- Boğaz/Girne showed the lowest MIC and MBC values and the strongest bactericidal activity against H. pylori compared to the other tested essential oils. Bactericidal efficacy of essential oil of Thymus capitatus on H. pylori could have been affected due to the varied rates of major compounds. Thymus capitatus essential oil could be an alternative way for the treatment of H. pylori infections.

5

Interactions between Clotrimazole and selected essential oils against Malassezia pachydermatis clinical isolates

75%

Bohmova E., Conkova E., Harcarova M., Sihelska Z., Bohmova E., Conkova E., Harcarova M., Sihelska Z.

Polish Journal of Veterinary Sciences

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2019

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issue 1

6

Bio-insecticidal effects of essential oil nano-emulsion of Lippia multiflora Mold. on major cabbage pests

75%

Tia V. E., Gueu S., Cissé M., Tuo Y., Gnago A. J., Konan E., Tia V. E., Gueu S., Cissé M., Tuo Y., Gnago A. J., Konan E.

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2021

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vol. 61

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issue 1

7

First report of powdery mildew caused by Podosphaera xanthi ion Luffa cylindrica in Egypt and its control

75%

Elgamal N. G., Khalil M. S., Elgamal N. G., Khalil M. S.

Journal of Plant Protection Research

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2020

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vol. 60

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issue 3

8

Preparation, chemical components and biological activities of essential oil from Licorice seeds

75%

Qin X., Le L., Jiang F., Yong J., Tian D.

World News of Natural Sciences

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2024

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vol. 54

45-57

EN

The essential oil from licorice seeds was prepared and investigated using gas chromatography-mass spectrometry (GC-MS), resulting in the identification of 47 beneficial components. The oil was found to be abundant in fatty acids: including linoleic acid (43.87%), palmitic acid (10.43%), oleic acid (4.51%), stearic acid (1.83%), and palmitoleic acid (1.25%). The oil’s physicochemical properties revealed an acid value of 0.066 mg/g, a peroxide value of 7.267 g/100g, an iodine value of 37.231 g/100g, and a saponification value of 186.823 mg/g, indicating that it can be regarded as a premium edible oil. The antioxidant activity of this oil showed that it has a antioxidant capacity with a free radical scavenging rate of up to 38.53% at a concentration of 15 mg/mL. The in vitro anticancer activities against lung cancer A549 cell lines and cervical cancer Hela cell lines showed that it inhibited the cancer cell lines with cell viability of 61% and 56% at a concentration of 100 mg/mL, respectively with a dose-depedent manner. This results indicate that the oil can be considered to be used as edible oil or potential applications in the field of food and medicine.

9

Chemical profile and antibacterial activity of essential oils from leaves and fruits of Gaultheria procumbens L. cultivated in Poland

75%

Magiera A., Sienkiewicz M., Olszewska M., Kicel A., Michel P.

Acta Poloniae Pharmaceutica - Drug Research

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2019

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vol. 76

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issue 1

93-102

EN

Essential oils (EOs) of Gaultheria procumbens were obtained by hydrodistillation with the yield of 1.30% ± 0.05 (v/dw) for leaves and 2.68% ± 0.08 (v/dw) for fruits. The GC-FID/MS analysis led to the identification of 64 volatile components, among which 27 were found in leaf EO, 49 in fruit EO, and 59 analytes were detected for the first time in G. procumbens. Methyl salicylate, which is known as a potent anti-inflammatory agent, was the dominant component making up to 97.5% and 99.8% of the total fruit and leaf EOs, respectively. The remaining volatiles of the leaves included mainly monoterpenes (α-pinene, β-pinene, limonene), methyl-o-anisate, massoilactone, spiro[4,5]decane-1-one, and aliphatic alcohols (heptan-2-ol, octan-1-ol), while the fruit EO contained apart from the dominant aliphatic and aromatic alcohols (benzyl alcohol, heptan-2-ol, p-cymen-7-ol) also carboxylic acids (3-hydroxyphenylacetic acid, heptanoic acid, octanoic acid) and aldehydes (hexanal, furfural, pent-4-enal). The antibacterial activity of the EOs was evaluated using a microdilution broth method against twelve reference strains, as well as clinical and environmental isolates. Differences between activity parameters of both EOs were not statistically significant (p > 0.05) for most tested bacteria. On the other hand, both EOs were significantly more effective against Gram-negative (MIC, 8.2-10.0 mg/mL) than Gram-positive bacteria (MIC, 13.5-16.7 mg/mL). Leaves and especially fruits of G. procumbens cultivated in Poland were proved valuable sources of methyl salicylate-rich EOs of moderate antibacterial activity, which, therefore, could partly explain the traditional use of the plant materials and the EOs in the treatment of bacterial infections-related inflammatory disorders.

10

Rosemary essential oil nanoemulsion, formulation, characterization and acaricidal activity against the two-spotted spider mite Tetranychus urticae Koch (Acari: Tetranychidae)

75%

Mossa A.-T. H., Afia S. I., Mohafrash S. M. M., Abou-Awad B. A., Mossa A.-T. H., Afia S. I., Mohafrash S. M. M., Abou-Awad B. A.

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2019

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vol. 59

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issue 1

11

In vitro production of M. × piperita not containing pulegone and menthofuran

75%

Bertoli A., Leonardi M., Krzyzanowska J., Oleszek W., Pistelli L.

Acta Biochimica Polonica

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2012

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vol. 59

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issue 3

417-423

EN

The essential oils (EOs) and static headspaces (HSs) of in vitro plantlets and callus of Mentha x piperita were characterized by GC-MS analysis. Leaves were used as explants to induce in vitro plant material. The EO yields of the in vitro biomass were much lower (0.1% v/w) than those of the parent plants (2% v/w). Many typical mint volatiles were emitted by the in vitro production, but the callus and in vitro plantelet EOs were characterized by the lack of both pulegone and menthofuran. This was an important difference between in vitro and in vivo plant material as huge amounts of pulegone and menthofuran may jeopardise the safety of mint essential oil. Regarding the other characteristic volatiles, menthone was present in reduced amounts (2%) in the in vitro plantlets and was not detected in the callus, even if it represented the main constituent of the stem and leaf EOs obtained from the cultivated mint (26% leaves; 33% stems). The M. piperita callus was characterized by menthol (9%) and menthone (2%), while the in vitro plantlet EO showed lower amounts of both these compounds in favour of piperitenone oxide (45%). Therefore, the established callus and in vitro plantlets showed peculiar aromatic profiles characterized by the lack of pulegone and menthofuran which have to be monitored in the mint oil for their toxicity.

12

Mentha longifolia in vitro cultures as safe source of flavouring ingredients

75%

Bertoli A., Leonardi M., Krzyzanowska J., Oleszek W., Pistelli L.

Acta Biochimica Polonica

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2011

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vol. 58

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issue 4

581-587

EN

In vitro plantlets and callus of M. longifolia were established and their volatile constituents characterized by GC-MS analysis of their headspaces (HSs) and essential oils (EOs). Significant quali-quantitative differences were found in the aromatic fingerprints in comparison with the M. longifolia parent plants. In fact, limonene and carvone were the main constituents in the EOs of the mother plants, while the aroma of the in vitro plant material were especially enriched in oxygenated terpenes. In particular, huge amounts of piperitenone and piperitenone oxide (75 %) were found for in vitro plantlets, while trans-carvone oxide (19 %) and trans-piperitone epoxide (9 %) were found in callus EO. However, the established in vitro plant material showed lack of pulegone and menthofurane, thus preserving an important feature observed in the volatile fingerprint of the parent plants. In fact, because of their well-known toxicity significant amounts of pulegone and menthofurane may compromise the safety using of mint essential oil. Therefore the in vitro M. longifolia plantlets and callus may be regarded as a potential source of a safe flavouring agent.

13

Chemical composition, antimicrobial and cytotoxic activity of essential oils of Algerian Thymus vulgaris L.

75%

Abdelli W., Bahri F., Sysak A., Szumny A., Pawlak A., Obmińska-Mrukowicz B.

Acta Poloniae Pharmaceutica - Drug Research

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2019

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vol. 76

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issue 6

1051-1059

EN

This study analyzed chemical composition of the essential oils (EOs) of Thymus vulgaris L., harvested in two regions of northwest Algeria (Tlemcen and Mostaganem), and evaluated their antimicrobial and cytotoxic activity. Fifty one compounds representing 99.99% and 100% of total thyme oil of Mostaganem (EO.TM) and Tlemcen (EO.TT), respectively were identified by GC-FID and GC-MS. Carvacrol was a dominant compound in both oils (89.15 and 82.42%). The antimicrobial activity, demonstrated by disc diffusion and broth macrodilution methods, showed a strong inhibitory effect of the oils on seven reference strains tested and particularly on Bacillus cereus ATCC 10876 and Candida albicans ATCC 10231. A cytotoxicity assay for two normal and two cancer cell lines indicated the highest sensitivity of canine B-cell lymphoma cell line (CLBL-1) for which IC50 values were 35.39 ± 9.0 (EO.TT) and 84.51± 3.2 (EO.TM). Murine fibroblast cell line (3T3), with IC50 116.97 ± 2.7 for EO.TT and 146.29 ± 0.5 for EO.TM was the most resistant line.

Refine search results

Anti-babesial potential and chemical composition of essential oil from yarrow Achillea millefolium

Essential oil composition and variability of Hypericum perforatum L. from wild population in Kosovo

Inhibitory activities of essential oils against Babesia canis

Antimicrobial Activity of the Essential oil of Thymus capitatus against Helicobacter pylori

Interactions between Clotrimazole and selected essential oils against Malassezia pachydermatis clinical isolates

Bio-insecticidal effects of essential oil nano-emulsion of Lippia multiflora Mold. on major cabbage pests

First report of powdery mildew caused by Podosphaera xanthi ion Luffa cylindrica in Egypt and its control

Preparation, chemical components and biological activities of essential oil from Licorice seeds

Chemical profile and antibacterial activity of essential oils from leaves and fruits of Gaultheria procumbens L. cultivated in Poland

Rosemary essential oil nanoemulsion, formulation, characterization and acaricidal activity against the two-spotted spider mite Tetranychus urticae Koch (Acari: Tetranychidae)

In vitro production of M. × piperita not containing pulegone and menthofuran

Mentha longifolia in vitro cultures as safe source of flavouring ingredients

Chemical composition, antimicrobial and cytotoxic activity of essential oils of Algerian Thymus vulgaris L.