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1

CHEMICAL COMPOSITION OF THE ESSENTIAL OIL AND FLAVONOIDS OF THYMUS SERPYLLUM L., GROWING ON TERRITORY OF THE EAST KAZAKHSTAN

100%

Tazabayeva K. A., Sylibaeva B.

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2018

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vol. 75

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issue 6

1329-1337

EN

Thymus serpyllum L. (T.serpyllum) has a great interest as a potential plant component, which is used in the production of fermented milk products with anticancer effect. The plant material was collected at the flowering stage. Chemical composition of essential oil and flavonoids from the aerial parts of the T. serpyllum, grown in the Southern Altai of the East Kazakhstan region, has been investigated for the first time. Output of the essential oil received from the aerial part of the plant in the flowering stage was on average 0,2%. Forty-one compounds were identified in T. serpyllum essential oil, which accounts for 96, 1% of the total oil. The main components of the oil were thymol (41,8%), γ-terpinene (15,3%), o-cymene (10,9%). Apart from the composition of essential oils, there were shown some flavonoids, such asapigenin 7 glucoside (0.24 % of dried plant material), luteolin (0,039 %), quercetin (0,006 %), which demonstrated a cytotoxic effect on cancer cells. In our experiments, luteolin had greater cytotoxic effect on cancer cells HCT-15 than quercetin. IC50 value of quercetin (100 μM) was higher than that of luteolin (50 μM).

2

Hydrophobic properties of Candida spp. under the influence of selected essential oils

100%

Rajkowska K., Kunicka-Styczyńska A., Pęczek M.

Acta Biochimica Polonica

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2015

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vol. 62

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issue 4

663-668

EN

Processes of colonization of biotic and abiotic surfaces and biofilm formation depend inter alia on hydrophobic properties of Candida spp. The aim of this research was to determine the effect of tea tree, thyme and clove essential oils on hydrophobic properties of environmental and clinical Candida isolates. The relative cell surface hydrophobicity of strains tested was high, and ranged from 68.7% to 91.2%, with the highest value for a C. rugosa food-borne strain. The effectiveness of essential oils was diversified and depended on the type of essential oil, concentration and yeast strain. Statistically significant decrease of hydrophobicity indexes was observed after application of tea tree oil for C. krusei, clove oil for C. albicans reference strain, and all essential oils tested for C. rugosa. Only in the case of C. famata food-borne strain and C. albicans clinical isolate, solely used essential oils did not affect their hydrophobic properties. To determine the interactions of essential oils, their mixtures (1 MIC:1 MIC, 1 MIC:2 MIC and 2 MIC:1 MIC) were applied. Generally, essential oils used in combinations influenced yeast's hydrophobic properties much more than applied separately. The essential oils' mixtures reduced hydrophobicity of Candida yeasts in the range of 8.2 to 45.1%, depending on combination and strain. The interaction indexes of essential oils used in combinations predominantly indicate their additive effect. The application of tea tree, thyme and clove essential oils, especially in combinations, decreases hydrophobicity of the tested Candida isolates with implications of a probable advantageous limitation of their ability to colonize the food production industry environment.

3

The inhibition of methicillin-resistant Staphylococcus aureus by essential oils isolated from leaves and fruits of Schinus areira depending on their chemical compositions

100%

Celaya L., Alabrudzińska M., Molina A., Viturro C., Moreno S.

Acta Biochimica Polonica

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2014

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vol. 61

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issue 1

41-46

EN

Schinus areira L. is a native plant from South America used for centuries in traditional medicine. Here, we investigate the antimicrobial activity of four essential oils extracted from leaves and fruits of S. areira exhibiting different chemical profiles. The antibacterial activity against the human pathogenic bacteria Staphylococcus aureus susceptible as well as methicillin resistant strain was assessed by the broth microdilution assay. The results showed that the limonene-rich oil extracted from the leaves and fruits have potent antibacterial effect on S. aureus ATCC 25923, while the α-phellandrene-rich fruit oil having a lower content of limonene showed the lowest antibacterial efficacy. In this work, for the first time, we demonstrated the bactericidal activity of essential oils isolated from fruits and leaves of S. areira against susceptible and methicillin resistant S. aureus strains. All results point out the potential use of the S. areira oils as antimicrobial agents to be used, at least against Staphylococcal infections.

4

Antifungal activity of PLA foils covered with ethylocelulose containing essential oils

100%

Łopusiewicz Ł., Mizielińska M.

World News of Natural Sciences

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2017

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vol. 12

27-32

EN

The purpose of the research work was to examine the antifungal properties of cumin, rosemary and fennel essential oils. The goal of the study was also to determine antifungal activity of coatings containing the essential oils. The results of the study demonstrated that cumin, rosemary and fennel essential oils exhibited antifungal properties. The most sensitive strains were Botrytis cinerea and Mucor circinelloides. The cumin oil was found to be the most active. The growth of Botrytis cinerea and Mucor circinelloides was not observed even on medium containing 0.1% of cumin oil. The growth of Aspergillus niger, Aspergillus clavatus and Rhizopus oryzae was not noticed on mediums containig 0.5% of the oil. The similar results were obtained for fennel essential oil. 0.5% concentration of the oil in medium inhibited the growth of Botrytis cinerea, Mucor circinelloides, Aspergillus clavatus, Rhizopus oryzae. The rosemary oil did not inhibited the growth of fungi strains in concentration of 0,1%.

5

Spin trapping studies of essential oils in lipid systems

100%

Makarova K., Drązikowska K., Suska B., Zawada K., Wawer I.

Nukleonika

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2015

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vol. 60

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issue 3

461-468

EN

In the present work, we report the results of a spin trapping ESR study of four essential oils widely used for skin care products such as creams and bath salts. The studied essential oils are Rosmarini aetheroleum (rosemary), Menthae piperitae aetheroleum (mint), Lavandulae aetheroleum (lavender), and Thymi aetheroleum (thyme). Fenton reaction in the presence of ethanol was used to generate free radicals. The N-tert-butyl-α-phenylnitrone (PBN) was used as a spin trap. In the Fenton reaction, the rosemary oil had the lowest effect on radical adduct formation as compared to the reference Fenton system. Since essential oils are known to be lipid soluble, we also conducted studies of essential oils in Fenton reaction in the presence of lipids. Two model lipids were used, namely 1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC) and 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC). The obtained results suggested that in the presence of DOPC lipids, the •OH and PBN/•CHCH3(OH) radicals are formed in both phases, that is, water and lipids, and all the studied essential oils affected the Fenton reaction in a similar way. Whereas, in the DPPC system, the additional type of PBN/X (aN = 16.1 G, aH = 2.9 G) radical adduct was generated. DFT calculations of hyperfine splittings were performed at B3LYP/6-311+G(d,p)/EPR-II level of theory for the set of c-centered PBN adducts in order to identify PBN/X radical.

6

The influence of water on the estimation of antioxidant properties of essential oils

100%

Olszowy M.

Annales Universitatis Mariae Curie-Skłodowska, sectio AA – Chemia

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2015

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vol. 70

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issue 2

EN

This study discusses the influence of water content in measuring system on the estimation of antioxidant activity of essential oils. The presented data show that the antioxidant activity of thyme, clove, summer savory and basil essential oils strongly depends on water concentration what has important impact on the estimation of correct and reliable antioxidant activity of examined essential oils.

7

Tea tree and wintergreen essential oils in the management of the invasive species Cortaderia selloana and Nicotiana glauca

75%

Ibáñez M. D., Blázquez M. A.

Journal of Plant Protection Research

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2019

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vol. 59

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issue 2

8

GC-MS Analysis and Biological activity of Essential Oil of Fruits, Needles and Bark of Pinus pinea grown wildly in Jordan

75%

Halloum B., Shakya A. K., Elagbar Z. A., Naik R. R.

Acta Poloniae Pharmaceutica - Drug Research

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2019

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vol. 76

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issue 5

825-831

EN

Essential oils from needles, fruits and bark was extracted from Pinus pinea L. (stone pine) grown wildly in Jordan. The chemical composition, antibacterial activity, antioxidant activity of essential oils was evaluated. The chemical compositions were identified using Gas-Chromatography-Mass spectrometry (GC-MS) and retention Indices (Van den Dool & Kratz). The results show that the essential oil obtained from needles composed mainly of Guaiol (12.7%), limonene (11.42%), and β-caryophyllene (7.61%), while fruit contains limonene (32.56%), and α-pinene (6.78%). The essential oils from barks were rich in β-caryophyllene (16.51%), limonene (14.83%), caryophyllene oxide (11.83%), and longifolene (7.51%). In vitro, antibacterial activity of the essential oil samples was evaluated using agar-well diffusion method against three different strains of bacteria (Gram¬-positive bacteria: Staphylococcus aureus and Gram-negative bacteria: Klebsiella pneumoniae and Escherichia coli). The results showed that essential oil showed appreciable antibacterial activity against S. aureus. The essential oil from fruit exhibited weak antibacterial activity against E. coli and K. pneumoniae. Essential oils of P. pinea showed appreciable antioxidant activity in-vitro.

9

Characterization by GC/MS-FID and GC/MS-HS-SPME and insecticidal activity against Callosobruchus maculatus (Fabricius, 1775) of essential oils and powder of Xylopia aethiopica (Dunal) A. Rich from Senegal

75%

Thiam A., Guèye M. T., Sangharé C. H., Cissokho P. S., Ndiaye E. B., Diop S. M., Diop M. B., Ndiaye I., Fauconnier M. L., Thiam A., Guèye M. T., Sangharé C. H., Cissokho P. S., Ndiaye E. B., Diop S. M., Diop M. B., Ndiaye I., Fauconnier M. L.

Journal of Plant Protection Research

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2021

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vol. 61

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issue 3

10

The effect of thyme and tea tree oils on morphology and metabolism of Candida albicans

75%

Rajkowska K., Kunicka-Styczyńska A., Maroszyńska M., Dąbrowska M.

Acta Biochimica Polonica

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2014

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vol. 61

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issue 2

305-310

EN

Members of Candida species cause significant problems in medicine and in many industrial branches also. In order to prevent from Candida sp. development, essential oils are more and more frequently applied as natural, non-toxic, non-pollutive and biodegradable agents with a broad spectrum of antimicrobial activity. The aim of the research was to determine changes in morphology and metabolic properties of Candida albicans in the presence of thyme and tea tree oils. Changes of enzymatic activity of isolates were observed in the presence of both tested essential oils, and they were primarily associated with loss or decrease of activity of all enzymes detected for control. Furthermore, only for 3 out of 11 isolates additional activity of N-acetyl-β-glucosaminidase, α-mannosidase, α-fucosidase and trypsin was detected. Vivid changes in biochemical profiles were found after treatment with tea tree oil and they were related to loss of ability to assimilate d-xylose, d-sorbitol and d-trehalose. The main differences in morphology of isolates compared to the control strain concerned formation of pseudohyphae structures. Both examined essential oils caused changes in cell and colony morphology, as well as in the metabolism of Candida albicans. However, the extent of differences depends on the type and concentration of an essential oil. The most important finding is the broad spectrum of changes in yeast enzymatic profiles induced by thyme and tea tree oils. It can be supposed that these changes, together with loss of ability to assimilate saccharides could significantly impact Candida albicans pathogenicity.

11

Analiza olejku eterycznego z Galium aparine.

75%

Antoniak K., Dudek-Makuch M., Bylka W.

Farmacja Polska

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2019

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vol. 75

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issue 10

536-541

EN

Summary Galium aparine L. (clivers, goosegrass) (Rubiaceae) is used in folk medicine as diuretic and medicinal plant alleviating different dermatoses as psoriasis, seborrheic dermatitis, eczema, and improves the immune system. So far, scientific studies have shown as a main constituents: iridoids (mainly asperuloside), flavonoids (luteolin, chrysoeriol, apigenin and quercetin derivatives), numerous of phenolic acids and phytosterols. Previous studies confirmed antimicrobial, antioxidant and cytotoxic activity of clivers. The aim of this work was to investigate the chemical profile of essential oil isolated from G. aparine collected in Poland. The essential oil was extracted from the herb of G. aparine by hydrodistillation in Deryng-type apparatus and the volatile constituents were identified by gas chromatography coupled with mass spectrometry (GC-MS). 0,1 ml of essential oil (3,33 ml/kg) was obtained from the of G. aparine herb, in which 74 volatile ingredients were identified (100%). According to GC/MS analysis 9-diazo-9H-fluorene (31,93%), palmitic acid and dihomo-γ-linolenic acid (8,89%) were as major constituents. 9-diazo-9H-fluorene is very rare in the plant world, previously identified only in Bidens pilosa. Terpene compounds represented 22,31% of essential oil, including 15 sesquiterpenes (18,23%), 6 monoterpenes (2,00%) and 1 diterpene (3,08%). The other active ingredients of the oil include: phytol, β-ionone, anethole, spatulenol, α-cadinol, phenylethyl alcohol, eugenol, methyleugenol, α-carvacrol, α-caryophyllene, α-terpineol, isoaromadendren epoxide, carvone, linalool, santalol, β-farnesene and eucalyptole. The ingredients of the essential oil are multi-directional activity - anti-inflammatory, antimicrobial, anti-cancer, antiproliferative, effect on angiogenesis, and also have occlusive properties. Quantify and a number of ingredients of the essential oil have proven that it may be one of the bioactive important fractions of the clivers herb and partly justify the traditional use of G. aparine.

PL

Streszczenie Galium aparine L. (przytulia czepna) (Rubiaceae) jest stosowana w medycynie ludowej jako diuretyk i środek łagodzący różne schorzenia skóry. W wyniku dotychczasowych badań stwierdzono, że głównymi związkami ziela są irydoidy, flawonoidy, kwasy fenolowe i fitosterole. Badania naukowe potwierdziły aktywność przeciwdrobnoustrojową, antyoksydacyjną i cytotoksyczną surowca. Celem naszych badań była analiza składników olejku lotnego otrzymanego z rosnącego w Polsce G. aparine. Olejek otrzymano metodą hydrodestylacji w aparacie Derynga, a jego skład analizowano metodą GC-MS. W efekcie otrzymano 0,1 ml olejku (3,33 ml/kg), w którym zidentyfikowano 74 składniki (100%). Dominującymi związkami były: 9-diazo-9H-fluoren (31,93%), który dotąd został wykryty jedynie w Bidens pilosa oraz kwasy palmitynowy i dihomo-γ-linolenowy (8,89%). Związki terpenowe, które stanowiły 22,31% olejku, reprezentowane były przez 15 seskwiterpenów (18,23%), 6 monoterpenów (2,00%) i 1 diterpen (3,08%). Ze względu na wykazaną w licznych pracach aktywność biologiczną, na uwagę zasługują takie składniki olejku, jak: fitol, β-jonon, anetol, spatulenol, α-kadinol, alkohol fenyloetylowy, eugenol, metyloeugenol, α-karwakrol, α-kariofilen, α-terpineol, epitlenek izoaromadendrenu, karwon, linalol, santalol, β-farnezen i eukaliptol. Zawartość oraz skład olejku otrzymanego z analizowanego przez nas surowca wskazuje, że może być jedną z istotnych frakcji czynnych surowca i częściowo uzasadniać tradycyjne zastosowanie G. aparine.

12

GC-MS fingerprints of mint essential oils

75%

Hawrył M. A., Skalicka-Woźniak K., Świeboda R., Niemiec M., Stępak K., Waksmundzka-Hajnos M., Hawrył A., Szymczak G.

Open Chemistry

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2015

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vol. 13

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issue 1

EN

Essential oils from eleven Mentha species were obtained by Deryng hydrodistillation and analysed by GC–MS: 44 compounds were identified. The most abundant were menthone, isomenthone, menthol, carvone, piperitone oxide, D-limonene and eucalyptol. Chemometric similarity measures and principal component analysis were calculated, allowing comparisons based on secondary metabolite content. The fingerprints may be helpful in chemotaxonomy.

13

Ocena składu i zastosowanie olejków eterycznych z rodzaju centaurea l.

63%

Józefczyk A., Kowalska J.

Kosmos

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2018

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vol. 67

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issue 2

319-334

PL

Centaurea L. jest jednym z liczniejszych (czwartym, co do wielkości) rodzajów rodziny Asteraceae, należącym do grupy roślin okrytonasiennych (kwiatowych). Morfologia i chemizm tego rodzaju, wciąż jeszcze nie są dobrze poznane. Obejmuje on najczęściej wieloletnie, ale również roczne i dwuletnie gatunki roślin trawiastych i krzewinek. Rośliny z rodzaju Centaurea L. występują głównie w obszarze Morza Śródziemnego i Zachodniej Azji. Rodzaj ten jest jednym z najbogatszych pod względem występowania gatunków endemicznych. Szczególnie dużą liczbę gatunków Centaurea L. spotkać możemy w Turcji, głównie w południowo-zachodniej, centralnej i wschodniej części kraju. Badania etnofarmakologiczne tego rodzaju wykazały, że duża liczba tych roślin jest w wielu krajach używana w medycynie ludowej do leczenia różnych dolegliwości. W niniejszej pracy przedstawiono przegląd olejków eterycznych pozyskiwanych z wybranych 50 gatunków roślin rodzaju Centaurea L., ze szczególnym uwzględnieniem ich składu i związków dominujących. Opisano właściwości olejków, na podstawie których wnioskować można potencjalne ich wykorzystanie w lecznictwie, przemyśle kosmetycznym czy spożywczym.

EN

Centaurea L. is one of a more numerous genus of the Asteraceae family, ranked among the group of Angiosperm plants (flowering plants), morphology and chemical composition of which are still not well known. Most often it includes long-term plant species, but also annual and two-year species of Graminaceous plants and shrubs. Plants from the Centaurea L. genus are found mainly in an area of the Mediterranean Sea and Western Asia. This genus is one of the richest in terms of occurrence of endemic species. Particularly large amounts of Centaurea L. species live in Turkey, mainly in south-west, central and of eastern part of the country. Ethnopharmacological examinations of the genus showed that a substantial amount of these plants in many countries is being used in the folk medicine for curing various ailments. In this paper essential oils acquired from 50 chosen species of the Centaurea L. plants are described, with particular reference to their chemical composition and properties important from the point of view of their possible application in health care, cosmetics and food industries.

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CHEMICAL COMPOSITION OF THE ESSENTIAL OIL AND FLAVONOIDS OF THYMUS SERPYLLUM L., GROWING ON TERRITORY OF THE EAST KAZAKHSTAN

Hydrophobic properties of Candida spp. under the influence of selected essential oils

The inhibition of methicillin-resistant Staphylococcus aureus by essential oils isolated from leaves and fruits of Schinus areira depending on their chemical compositions

Antifungal activity of PLA foils covered with ethylocelulose containing essential oils

Spin trapping studies of essential oils in lipid systems

The influence of water on the estimation of antioxidant properties of essential oils

Tea tree and wintergreen essential oils in the management of the invasive species Cortaderia selloana and Nicotiana glauca

GC-MS Analysis and Biological activity of Essential Oil of Fruits, Needles and Bark of Pinus pinea grown wildly in Jordan

Characterization by GC/MS-FID and GC/MS-HS-SPME and insecticidal activity against Callosobruchus maculatus (Fabricius, 1775) of essential oils and powder of Xylopia aethiopica (Dunal) A. Rich from Senegal

The effect of thyme and tea tree oils on morphology and metabolism of Candida albicans

Analiza olejku eterycznego z Galium aparine.

GC-MS fingerprints of mint essential oils

Ocena składu i zastosowanie olejków eterycznych z rodzaju centaurea l.