Temat: Essential oil - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Sea Fennel (Crithmum maritimum L.) Flowers as an Emerging Source of Bioactive Compounds
Autorzy:: Radman, Sanja
Mastelić, Linda
Ljubenkov, Ivica
Lazarevski, Sara
Politeo, Olivera
Podrug, Roko
Prga, Ivana
Čorić, Ivona
Popović, Marijana
Veršić Bratinčević, Maja
Skroza, Danijela
Brzović, Petra
Runjić, Marko
Urlić, Branimir
Generalić Mekinić, Ivana
Powiązania:: https://bibliotekanauki.pl/articles/48899271.pdf
Data publikacji:: 2024-08-13
Wydawca:: Instytut Rozrodu Zwierząt i Badań Żywności Polskiej Akademii Nauk w Olsztynie
Tematy:: essential oil
volatile organic compounds
phenolics
fatty acids
tocopherols
antioxidant capacity
Opis:: Sea fennel (Crithmum maritimum L.) is an edible halophytic species rich in various valuable phytochemicals, and has accordingly, been used in traditional medicine and nutrition since ancient times. The aim of this study was to investigate the chemical composition of sea fennel flowers from three regionally (ecologically) different locations on the Croatian Adriatic coast (Pag, Korčula, Cavtat). The profiles of essential oils (EOs), fatty acids (FAs), tocopherols, and phenolic compounds (total phenolics, flavonoids, and tannins) as well as associated antioxidant capacity were analysed. The flowers collected at the northernmost site had the lowest contents of total phenolic compounds, limonene in the EO and unsaturated FAs, but the highest content of α-tocopherol, one of the best-known plant lipophilic antioxidants. On the other hand, the flowers from Korčula and Cavtat contained high amounts of phenolics, especially chlorogenic acid (7.99 and 13.27 mg/g dry plant matter, respectively), resulting in high antioxidant activity of the samples. Despite these differences in composition, which may be related to the geographical location of the sampling site, sea fennel flowers from all locations can be considered a valuable source of important health-promoting phytochemicals.
Źródło:: Polish Journal of Food and Nutrition Sciences; 2024, 74, 3; 221-231
1230-0322
2083-6007
Pojawia się w:: Polish Journal of Food and Nutrition Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Impact of Water Stress and Temperature on Metabolites and Essential Oil of Rosmarinus officinalis (Phytochemical Screening, Extraction, and Gas Chromatography)
Autorzy:: Laftouhi, Abdelouahid
Eloutassi, Noureddine
Drioua, Soufiane
Ech-Chihbi, Elhachmia
Rais, Zakia
Abdellaoui, Abdelfattah
Taleb, Abdslam
Beniken, Mustapha
Taleb, Mustapha
Powiązania:: https://bibliotekanauki.pl/articles/24201782.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: climate change
primary metabolites
secondary metabolites
essential oil yield
Rosmarinus officinalis
Opis:: Currently, climate change is disrupting life on Earth by causing imbalances in the biosphere. This work aimed to evaluate the impact of climate change on the content of primary and secondary metabolites and the yield of essential oil of Rosmarinus officinalis. Thus, the results of the conducted experiment show that the content of primary metabolites decreased with increasing temperature and decreasing precipitation along the experiment(proteins from 7.61% to 7.14%, carbohydrates from 6.92% to 5.64%, fats from 1.48% to 1.29% and dietary fiber from 4.96% to 4.22% and mineral composition: Ca from 7.67% to 5.98%, Mg from 8.61% to 7.01%, Fe from 7.53% to 7.21% and Mn from 6.85% to 3.97%), and the content of secondary metabolites increased in the second year when increasing the temperature by 5 °C and water stress by 50% (coumarin from 6.59% to 10.99%, saponins from 7.15% to 8.46%, tannin from 3.92% to 5.95%, alkaloids from 6.69% to 15.62% and flavonoid from 8.02% to 15.75%),but in the fourth year when the temperature continued to increase and water stress was 75% the content of secondary metabolites decreased (coumarin from 10.99% to 8.27%, saponins from 8.46% to 7.87%, tannin from 5.95% to 4.85%, alkaloids from 15.62% to 10.68% and flavonoid from 15.75% to 11.36%)and the same results were obtained for the yield of essential oil which increased in the second year and decreased in the fourth year. This GC analysis of the three essential oil samples shows that the majority of compounds in the three essential oils studied are cineole (S1:45.98%, S2:55.36%, S3:43.08%) followed by camphor (S1:17.44%, S2:21.44%, S3:21.56%) and Alpha-pinene (S1:9.30%, S2:8.34%, S3: 9.17%) and other compounds in low percentage.
Źródło:: Journal of Ecological Engineering; 2023, 24, 5; 237--248
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Influence of distillation time and distillation apparatus on the chemical composition and quality of Lavandula angustifolia Mill. essential oil
Autorzy:: Wesołowska, Aneta
Jadczak, Dorota
Zyburtowicz, Karolina
Powiązania:: https://bibliotekanauki.pl/articles/27315651.pdf
Data publikacji:: 2023
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:: Lavandula angustifolia essential oil
distillation time
distillation apparatus
GC-MS
gas chromatography-mass spectrometry
quality of lavender essential oil
Opis:: In the study, the influence of distillation time as well as distillation apparatus on the chemical composition and quality of lavender (Lavandula angustifolia Mill.) essential oil were investigated. Two different types of distillation apparatuses: Deryng (popular in Poland) and Clevenger-type (recommended by European Pharmacopoeia) were used for the isolation of the essential oil from dried lavender flowers (Lavandulae flos). Moreover, different distillation times (2, 3 and 4 hours) were also applied. The chemical composition of the isolated oils, determined by gas chromatography coupled with mass spectrometry (GC-MS), revealed the dominance of linalool (11.55–17.19%) and linalyl acetate (12.84–16.78%) in the all analyzed samples. Other important constituents were: caryophyllene oxide (5.66–7.35%), lavandulyl acetate (4.64–5.40%) and borneol (4.62–5.51%). On the basis of the obtained data it was proved that the distillation time and distillation apparatus affect the amounts of some constituents in the lavender oil.
Źródło:: Polish Journal of Chemical Technology; 2023, 25, 4; 36--43
1509-8117
1899-4741
Pojawia się w:: Polish Journal of Chemical Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: The Needles of Aleppo Pine From the Province of Taza-Morocco – A Biomaterial of Great Potential
Autorzy:: Mahmoud, Rachid
Hjouji, Kaoutar
Mehdaoui, Imane
Saoudi Hassani, El Mokhtar
Ben Abbou, Mohamed
Majbar, Zineb
Taleb, Mustapha
Rais, Zakia
Powiązania:: https://bibliotekanauki.pl/articles/2202321.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: Aleppo pine
pine needle
physicochemical characterization
spectroscopic characterization
adsorbent
biomaterial
essential oil
Opis:: The needles of the Aleppo pine (Pinus halepensis) (PA) are very abundant in the forest of the National Park of Tazekka (Ta-za-Morocco) and are unexploitable. Moreover, they constitute a potential danger because they facilitate the outbreak of wildfires. To solve this problem, we have considered turning these needles into a biomaterial that could be used as raw material for different uses, such as wastewater treatment. The biomaterial of the Aleppo pine is obtained from its needles which are harvested in spring, dried, cut, crushed, and sieved. The powder obtained is analyzed before and after the extraction of essential oil. The physicochemical and spectroscopic analyses show that this biomaterial is porous, hygroscopic, slightly acidic, moderately moist, and not very conducive. Its average density in the anhydrous state is 0.6. It is rich in carbon (79.91%) and oxygen (18.91%) in the form of aromatic compounds and ketone imprints; thus, relating the presence of cellulose, pectin, lignin, and hemicellulose. Its composition in mineral elements (Na, Mg, Ca, K, Cl, S) is deficient. Gas chromatography-mass spectrometry (GC-MS) analysis of the oils extracted from the needle powder relates that it is a complex mixture of bioactive compounds such as mono-terpenoid α and β-pinene hydrocarbons. These results show that our biomaterial can be used as an adsorbent in wastewater treatment and the extracted essential oils can be used in the pharmacological, agro-food field.
Źródło:: Journal of Ecological Engineering; 2023, 24, 1; 41--50
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Antifungal Activity of Finished Chromium Tanned Leather Containing Thyme and Tea Tree Essential Oils
Autorzy:: Gendaszewska, Dorota
Wionczyk, Barbara
Bednarek, Agata
Boniecki, Paweł
Powiązania:: https://bibliotekanauki.pl/articles/2172003.pdf
Data publikacji:: 2022
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych
Tematy:: essential oil
antifungal activity
leather
microorganisms
Opis:: Leather products provide an ideal environment for microbial growth. In order to prevent the appearance and spread of various types of microorganisms, it is treated with selected biocides and even essential oils. The aim of this paper was to investigate the antifungal activity of selected essential oils applied to finished chromium tanned leather which is intended for leather fancy products. Antifungal activity was evaluated according to the PN-EN 14119: 2005 standard. Four finished chromium tanned leathers were tested, each of which was soaked in the following essential oils: tea tree essential oil at a concentration of 1, 2 and 5% and thyme essential oil at concentration of 1, 2 and 5%. The results obtained indicated that leather finishing with thyme essential oil showed the antimicrobial activity against Aspergillus niger, Chaetomium globosum and Candida albicans strains. The application of 5% thyme essential oil to leather samples inhibited the growth of all strains tested. Using tea tree essential oil on leather samples showed a antimicrobial effect only against Candida albicans. The application of essential oils in the leather finishing process may be an alternative to biocides used in the tanning industry.
Źródło:: Fibres & Textiles in Eastern Europe; 2022, 3 (151); 41--45
1230-3666
2300-7354
Pojawia się w:: Fibres & Textiles in Eastern Europe
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Chemical Composition and Antimicrobial Activity of Essential Oil of Wild and Cultivated Rosmarinus Officinalis from Two Moroccan Localities
Autorzy:: Elyemni, Majda
El Ouadrhiri, Faiçal
Lahkimi, Amal
Elkamli, Taha
Bouia, Abdelhak
Eloutassi, Noureddine
Powiązania:: https://bibliotekanauki.pl/articles/2068472.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: essential oil
Rosmarinus officinalis
antimicrobial activity
chemotype
Opis:: This research aimed to measure the impact of provenance on the yield, chemical profile and antimicrobial activity of Rosmarinus officinalis essential oil (EO) collected from cultivated and wild plants from two different regions in Morocco (Fez and Figuig). The chemical composition analysis was accomplished utilizing the GC-MS techniques. Sixteen compounds were identified in the EO of both samples, dominated by 1,8-cineole (32.18%), camphor (16.20%) and α-pinene (15.40%) in cultivated type. The α-pinene (51.19) presents the majority compound in the rosemary samples collected from the wild populations.The antimicrobial activity was investigated by using the broth dilution methods against yeast, four bacterial strains and two molds. Rosemary aerial part provided EO with the highest yield and comes from Figuig. The GC-MS analysis demonstrated the existence of two chemotypes of oils: α-pinene as well as 1,8-cineole/camphor/α-pinene. Both EOs showed good antimicrobial activity against all microbial strains. The essential oil produced by Fez plants was the most effective against the selected microorganisms having MIC values of 0.315–2.5 mg/L.
Źródło:: Journal of Ecological Engineering; 2022, 23, 3; 214--222
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Chemical composition, antioxidant and antimicrobial activities of Moroccan species of Psidium guajava extracts
Autorzy:: Lahlou, J.
Amraoui, B.E.
El-Wahidi, M.
Bamhaoud, T.
Powiązania:: https://bibliotekanauki.pl/articles/2082864.pdf
Data publikacji:: 2022
Wydawca:: Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
Tematy:: antibacterial activity
antifungal activity
polyphenol
medicinal plant
essential oil
Opis:: Background. During the recent years, appropriate attention has been paid to the oxidative stress which damages the body’s cells, proteins, and DNA. Therefore, the need of antioxidants becomes a therapeutic and preventive priority. In addition, microbial infections also constitute a public health problem. Objective. To find efficient, reliable and safe alternatives sources to synthetic antioxidants, antibiotics and antifungals drugs. Materials and methods. Extract and essential oil of Psidium guajava were screened for their antioxidant and antimicrobial activities against gram positive bacteria (Enterococcus faecalis and Staphylococcus aureus), gram negative bacteria (Citrobacter freundii, Escherichia coli and Pseudomonas sp) and fungi (Candida albicans,Candida tropicalis and Cryptococcus neoformans), as well as to determine the functional groups of phytochemicals present in the essential oil by Fourier transform infrared spectroscopy (FTIR). Results. The results indicate that P. guajava leaves extract demonstrated very high antioxidant activity and P.guajava essential oil showed the highest polyphenols content. The antioxidant capacity showed a significant negative linear correlation to total polyphenolic content (TPC) with Pearson’s correlation coefficients. P. guajava essential oil shows high antibacterial and antifungal activity against all the studied bacteria and fungi.The FTIR analysis of P. guajava essential oil showed the presence of several functional groups (ethers, esters, ketones, terpenes, alkanes, aldehydes, aromatic hydrocarbons, alcohols, and phenols). The relationship between the chemical composition and antimicrobial activity of P.guajava essential oil suggests that the attribution of its antimicrobial activity to a particular compound or a synergistic effects between its different constituents remains difficult. Conclusions. The present study demonstrated that Psidium guajava is a valuable source of active compounds with anti- oxidant and antimicrobial activities. This finding suggests the new use of the fruits and the leaves extracts of this plant in the treatment of bacterial and fungal infections, as well as for the extraction of new antioxidants. Therefore, it is necessary to be carried out in another study to identify the active(s) compound(s) in P.guajava essential oil with respect to their mechanisms and synergistic actions.
Źródło:: Roczniki Państwowego Zakładu Higieny; 2022, 73, 1; 65-77
0035-7715
Pojawia się w:: Roczniki Państwowego Zakładu Higieny
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Comparison of the effectiveness of selected essential oils with mineral oil and spinosad on Dermanyssus gallinae
Autorzy:: Roczeń-Karczmarz, M.
Demkowska-Kutrzepa, M.
Zdybel, J.
Szczepaniak, K.
Studzińska, M.
Tomczuk, K.
Powiązania:: https://bibliotekanauki.pl/articles/16539169.pdf
Data publikacji:: 2022
Wydawca:: Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:: Dermanyssus
mite
essential oil
mineral oil
spinosad
Opis:: It seems that essential oils can be a good ingredient in effective preparations against Dermanyssus gallinae. Dermanyssus affects animal health leading to financial losses and bird welfare issues. Collected mites were treated with various essential oils in four (20, 50, 80 and 100%) concentrations at a dose of 0.28 mg/cm2. The direct toxicity of the essential oils, mineral oil and spinosad to D. gallinae was tested in the laboratory. Eucalyptus oil was the most toxic essential oil in all concentrations to D. gallinae (87.6 - 97.6% mortality at all four concentrations), while geranium, pine and rosemary oils showed mortality rates of 14.2 - 68.2%. High mortality after 48 hours of contact was also recorded for the oil of cloves at 80% dilution (85.1% mortality), lavender 100% (94.2% mortality). Similarly, the thyme essential oil produced 83.5 - 93.2% mortality in three concentrations: 50, 80 and 100%. The mineral oil was the least effective oil against mites. Spinosad showed high effectiveness against D. gallinae.
Źródło:: Polish Journal of Veterinary Sciences; 2022, 25, 2; 261-268
1505-1773
Pojawia się w:: Polish Journal of Veterinary Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Evaluation of forced aerated and turned pile composting of rose oil processing wastes
Autorzy:: Ekinci, Kamil
Tosun, İsmail
Sülük, Kemal
Şevik, Fevzi
Kumbul, Barbaros Salih
Bitrak, Necati Berk
Powiązania:: https://bibliotekanauki.pl/articles/2057621.pdf
Data publikacji:: 2022
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: composting method
composting
solid waste
essential oil
aeration
metoda kompostowania
kompostowanie
odpad stały
olejek eteryczny
napowietrzanie
Opis:: Composting of rose oil processing solid wastes was experimented by two different aeration methods: forced aeration and mechanical turning. The objective of this study was to assess which aeration methods were the most convenient for the composting process. Assessment of aeration methods was performed based on the parameters such as temperature, O2, CO2, CH4 concentration profiles, and physical and chemical properties of the finished composts. The two aeration methods were also compared based on the energy consumed by aeration per unit organic matter loss (OML) of composting, which is a major proportion of operating costs. Although composting performance parameters of temperature and O2/CO2 in the function of time showed some differences, similar end-product quality in terms of moisture, pH, electrical conductivity, NH+4–N and NO-3–N and contents was obtained. These results suggested that both methods (forced aeration and mechanical turning) may be utilized for composting operation of rose oil processing solid wastes. However, in this study, energy consumed by aeration provided by mechanical turning per unit OML of composting was 1.24 times higher than that of forced aeration. Furthermore, mechanical turning created anaerobic conditions for the formation of CH4 concentration in the pile, which was higher than that of the forced aeration.
Źródło:: Environment Protection Engineering; 2022, 48, 1; 99--115
0324-8828
Pojawia się w:: Environment Protection Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Influence of enzymatic pretreatment on yield and chemical composition of Rosmarinus officinalis essential oil
Autorzy:: Dzięcioł, Małgorzata
Powiązania:: https://bibliotekanauki.pl/articles/2174831.pdf
Data publikacji:: 2022
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:: Rosmarinus officinalis essential oil
Rosmarinus officinalis hydrolate
modification of hydrodistillation
enzymatic pretreatment
total phenolic content (TPC)
Opis:: Effect of enzymatic pretreatment before hydrodistillation process on yield and composition of Rosmarinus officinalis essential oil was studied. Results obtained by using two selected commercial enzymes applied in food and beverage industry were compared. Control process with non-enzymatic pretreatment in analogous conditions was also performed for proper interpretation of results. Application of gas chromatography with mass selective detector (GC-MS) enabled analysis and comparison of essential oils composition. Moreover, total phenolic content (TPC) was determined spectrophotometrically in post-processing hydrolates, which are also valuable products e.g. for cosmetic applications. Modifications of isolation process by pretreatment with selected enzymes resulted in significant increase in essential oil yields in comparison to conventional hydrodistillation and control process with non-enzymatic pretreatment in analogous conditions. No substantial changes in the composition of obtained essential oils were observed. In post-processing hydrolates higher values of total phenolic content (TPC) were found both after enzymatic and non-enzymatic pretreatment.
Źródło:: Polish Journal of Chemical Technology; 2022, 24, 4; 61--66
1509-8117
1899-4741
Pojawia się w:: Polish Journal of Chemical Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Natural Sources in Preventive Conservation of Naturally Aged Textiles
Źródła naturalne w prewencyjnej konserwacji tekstyliów naturalnie starzejących się
Autorzy:: Wendt, Jan A.
Indrie, Liliana
Dejeu, Paula
Albu, Adina
Ilieș, Dorina Camelia
Costea, Monica
Caciora, Tudor
Ilieș, Gabriela
Hodor, Nicolaie
Josan, Ioana
Berdenov, Zharas
Grama, Vasile
Safarov, Bahodir
Powiązania:: https://bibliotekanauki.pl/articles/2056324.pdf
Data publikacji:: 2022
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych
Tematy:: essential oil
cotton
antibacterial agent
health
prevention
conservation
olejek eteryczny
bawełna
środek antybakteryjny
zdrowie
profilaktyka
konserwacja
Opis:: Natural antimicrobials can eliminate fungi and prevent the aging of cotton fabrics. While fungi can cause severe infections to the fabric user etc, natural antimicrobials have the advantage of not being toxic to humans. The present study showed that the essential oils of lemon (Citrus limon), lavender (Lavandula angustifolia) and mint (Mentha piperita) have inhibitory effects on yeast and mould spores on a piece of textile from Romanian cultural heritage, "ie", stored in a space within an ethnographic museum., inhibitory action against Botrytis sp., the inhibitory effect of lemon essential oil on Cladosporium sp. and that of peppermint essential oil on yeast species Rhododtorula mucilaginosa were demonstrated, respectively. Being environmentally friendly, these sources, can be tested on a large scale.
Naturalne środki przeciwdrobnoustrojowe mogą eliminować grzyby i zapobiegać starzeniu się tkanin bawełnianych. Chociaż grzyby mogą powodować poważne infekcje u użytkowników wyrobów, naturalne środki przeciwdrobnoustrojowe mają tę zaletę, że nie są toksyczne dla ludzi. Przeprowadzone badanie wykazało, że olejki eteryczne z cytryny (Citrus limon), lawendy (Lavandula angustifolia) i mięty (Mentha piperita) działają hamująco na zarodniki drożdży i pleśni na tkaninie z rumuńskiego dziedzictwa kulturowego, przechowywanej w przestrzeni muzeum etnograficznego. Przyjazne dla środowiska źródła mogą być rekomendowane do stosowania na dużą skalę.
Źródło:: Fibres & Textiles in Eastern Europe; 2021, 5 (149); 80--85
1230-3666
2300-7354
Pojawia się w:: Fibres & Textiles in Eastern Europe
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Additivity interactions between fluconazole and citrus essential oils to Aspergillus fumigatus
Autorzy:: Wroblewska-Luczka, P.
Luszczki, J.
Powiązania:: https://bibliotekanauki.pl/articles/2098525.pdf
Data publikacji:: 2021
Wydawca:: Instytut Medycyny Wsi
Tematy:: Aspergillus fumigatus
mycosis
mould
interaction
fluconazole
essential oil
antifungal property
antibacterial property
antiinflammatory property
isobolographic analysis
Opis:: Introduction. Aspergillus fumigatus is the most common pathogen causing allergic bronchopulmonary mycosis. The pathogenic capacity of Aspergillus fumigatus is related to its thermal tolerance and the small size of the spores which enables transfer to the respiratory tract. In the case of fungal diseases, their treatment is based on fungicidal antibiotics, such as fluconazole. Due to the growing problem of drug resistance, new therapeutic solutions are sought, especially of natural origin. Essential oils, due to their anti-bacterial, anti-fungal, anti-inflammatory and immunostimulatory properties, constitute interesting research material in the fight against mould. Objective. The aim of the study was to assess the type of pharmacodynamic interactions between fluconazole and selected essential oils: lemon, orange, tangerine, and grapefruit in an in vitro study against Aspergillus fumigatus. Isobolographic analysis of the results allowed determining the type of interactions between fluconazole and the tested essential oils. Results. According to the research results, a IC50 dose of fluconazole versus Aspergillus fumigatus IC50 = 1.87±0.88mg/ml. The most active essential oil was lemon oil, which at the concentration of 4% in medium completely inhibited the growth of Aspergillus fumigatus. Tangerine essential oil is the least active against A. fumigatus. Isobolographic analysis of the interactions between fluconazole and essential oils showed additive interactions for the combination of fluconazole with lemon, orange and grapefruit ols, and an additive interaction with a tendency to synergism for the combination of fluconazole with tangerine oil. Conclusions. Isobographic analysis can contribute to the introduction of natural substances into the therapy of many diseases.
Źródło:: Journal of Pre-Clinical and Clinical Research; 2021, 15, 3; 116-120
1898-2395
Pojawia się w:: Journal of Pre-Clinical and Clinical Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Anti-babesial potential and chemical composition of essential oil from yarrow Achillea millefolium
Autorzy:: Guz, L.
Wawrzykowski, J.
Adaszek, Ł.
Powiązania:: https://bibliotekanauki.pl/articles/2087200.pdf
Data publikacji:: 2021
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Achillea millefolium
anitbabesial activity
essential oil
Źródło:: Polish Journal of Veterinary Sciences; 2021, 24, 1; 79-84
1505-1773
Pojawia się w:: Polish Journal of Veterinary Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Biologically active plant-derived substances with antimicrobial properties
Substancje biologicznie czynne pochodzenia roślinnego o własnościach przeciwdrobnoustrojowych
Autorzy:: Tokarska-Rodak, M.
Powiązania:: https://bibliotekanauki.pl/articles/2048817.pdf
Data publikacji:: 2021
Wydawca:: Akademia Bialska Nauk Stosowanych im. Jana Pawła II w Białej Podlaskiej
Tematy:: anti-bacterial agents
antifungal agents
essential oil
Aloe
Chelidonium
Opis:: Modern medicine, as well as the pharmaceutical, cosmetic and food industries appreciate the value of plant raw materials for their antiseptic, analgesic, anti-inflammatory and soothing effects. Medicinal plants, often found endemically, are often treated as potential sources of new substances with antimicrobial and antifungal activity. The aim of this study was to analyze the significance of selected medicinal and spice plants in terms of their ability to inhibit the growth of microorganisms, including those pathogenic to humans. The significance of active substances contained in selected plant species with high antimicrobial potential including Aloe vera L. and Chelidonium majus L. was described. The antimicrobial activity of plant oils, including those extracted from citrus and spice plants, was also analyzed. Plants are a rich source of many substances with a broad spectrum of activity. This knowledge has often been used in folk medicine, but it was not until the development of modern research methods that the mechanisms underlying the therapeutic properties of many plant substances and their proper use could be understood. New substances present in plant materials are constantly being discovered that may be of medical interest because of their great potential to be used against microorganisms or because of their antioxidant and anti-cancer properties.
Współczesna medycyna, branża farmaceutyczna, kosmetyczna i spożywcza docenia wartości surowców roślinnych w zakresie działania antyseptycznego, przeciwbólowego, przeciwzapalnego i kojącego. Rośliny lecznicze, często występujące endemicznie, traktowane są niejednokrotnie jako potencjalne źródła nowych substancji o aktywności przeciwbakteryjnej i przeciwgrzybiczej. Celem pracy była analiza znaczenia wybranych roślin leczniczych i przyprawowych w zakresie ich działania hamującego na rozwój drobnoustrojów, w tym chorobotwórczych dla człowieka. Opisano znaczenie substancji czynnych zawartych wybranych gatunkach roślin o dużym potencjale przeciwdrobnoustrojowym w tym Aloe vera L. i Chelidonium majus L. Przeanalizowano także przeciwdrobnoustrojowe działanie olejków roślinnych, w tym pozyskiwanych z roślin cytrusowych i przyprawowych. Rośliny są bogatym źródłem wielu substancji o szerokim spektrum działania. Wiedzę tę niejednokrotnie wykorzystywano w medycynie ludowej, lecz dopiero rozwój współczesnych metod badawczych umożliwił poznanie mechanizmów leżących u podstaw własności leczniczych wielu substancji pochodzenia roślinnego i właściwego ich wykorzystania. Wciąż odkrywane są nowe substancje obecne w surowcach roślinnych, które mogą mieć znaczenie w medycynie ze względu na duży potencjał w niszczeniu drobnoustrojów lub ze względu na właściwości przeciwutleniające czy przeciwnowotworowe.
Źródło:: Health Problems of Civilization; 2021, 15, 2; 152-158
2353-6942
2354-0265
Pojawia się w:: Health Problems of Civilization
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Comparative Study of Carvones from Various Essential Oils and Their Ability to Increase the Stability of Fat-Containing Products
Autorzy:: Frolova, Nataliia
Yushchenko, Nataliia
Korablova, Olga
Voitsekhivskyi, Volodymyr
Ocheretna, Alona
Synenko, Tetiana
Powiązania:: https://bibliotekanauki.pl/articles/1839130.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: essential oil
preparative isolation
carvone isomer
oxidation processes
natural antioxidants
Opis:: Carvone is a key component of essential oils from the Anethum graveolens L. (dill) and Mentha spicata L. (mint) plants. It was obtained in pure form by preparative isolation from the Mentha spicata essential oils. It has been established that essential oils contain carvone in various optically active forms. The essential oil of dill contains d-(R)-carvone (right-rotating isomer form) with a specific rotation of the plane of polarization [α]D + 62.5 + 0.05; mint essential oil from Mentha spicata contains l-(S)-carvone (left-rotating isomer form) with a specific rotation of the plane of polarization [α]D – 63.2 + 0.05. An organoleptic analysis reliably determined the aromatic characteristics of carvone: (S)-carvone of dill essential oil has a spicy aroma of fresh dill, in turn (R)-carvone of mint essential oil from Mentha spicata – has the aroma of cumin with menthol tones. The research of the method of accelerated oxidation proved that the introduction of antioxidants in the form of optical isomers into sunflower oil leads to an increase in the concentration of fat-containing products by 2.4–3.0 times by the values of peroxide number and 1.5–1.7 times by the values of acid number, in comparison with control. Comparing the effect of carvone optical isomers among themselves by the oxidation dynamics of fat-containing products, it was found that in general their protection effect is similar. However, the leftward carvone shows a higher effect on the resistance of sunflower oil as compared with the rightward carvone. Except for the protection from oxidation, the optical isomers of carvone can have a physiological effect on a human body. Thus, the optical isomers of carvone can add certain aromas to foodstuffs, and when functional fat-containing products are created, it is possible to use both optical forms of carvone, depending on the orientation of a new functional product.
Źródło:: Journal of Ecological Engineering; 2021, 22, 3; 239-248
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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