scholarly journals Enantiomeric composition of essential oils Ocimum L. components

2019 ◽  
Vol 48 (1) ◽  
pp. 164-171 ◽  
Author(s):  
Татьяна Сачивко ◽  
Tatsiana Sachyuka ◽  
Наталья Коваленко ◽  
Nataliya Kovalenko ◽  
Галина Супиченко ◽  
...  

Basil Ocimum L. belongs to the perspective aromatic and essential-oil plants. Its green mass and essential oils can be successfully used in different sectors of economy including food industry. In 56 samples of basil Ocimum L. having different ecological and geographic origin the author determined the content and yield of essential oils. The study of the taken basil cultivars shows that the content of essential oils in different types of basil (sweet basil – Ocimum basilicum L., holy basil – Ocimum tenuiflorum L., camphor basil – Ocimum kilimandscharicum Willd., hoary basil – Ocimum canum Sims.) was 0.28–0.83% when its yield was 24.0–314.6 kg/ha and green mass yield during technological maturity phase (massive flowering) was 0.51–5.08 kg/m2. By means of gas liquid chromatography method the author performed compositional and anantiometric analysis of the composition of the essential oils obtained from the new basil varieties such as Ocimum L. (Magiya, Volodar, Nastena, Istochnik), bred in Belorussian State Agricultural Academy and catalogued in the National Register of Cultivars in the Republic of Belarus. As a result of the research the author determined that essential oil samples obtained from the new basil cultivars have up to 20 components. The main components are linalool, methyl chavicol, - and -pinenes, -terpineol, eugenol, geraniol, geranial, geranyl acetate, thymol, neral, carvone, carvacrol, limonene and 1.8-cineol. Enantiomers are present in essential oil components - and -pinenes, limonene and linalool.

2017 ◽  
pp. 63-70 ◽  
Author(s):  
Наталья (Natal'ja) Александровна (Aleksandrovna) Коваленко (Kovalenko) ◽  
Галина (Galina) Николаевна (Nikolaevna) Супиченко (Supichenko) ◽  
Татьяна (Tat'jana) Игоревна (Igorevna) Ахрамович (Ahramovich) ◽  
Анна (Anna) Геннадьевна (Gennad'evna) Шутова (Shutova) ◽  
Виктор (Viktor) Николаевич (Nikolaevich) Леонтьев (Leontiev)

The essential oil obtained by hydrodistillation method from plants of three varieties Agastache aurantiaca, cultivated on the Republic of Belarus were investigated. Some morphobiometric parameters of plants 'Tango', 'Apricot Sprite' and 'Fragrant Delight' and oil yields were determined. Using the technique of gas-liquid chromatography essential oil components were identified and determined. The main components of the essential oil from 'Tango' and 'Fragrant Delight' plants were menton (~ 53 and ~ 65 v/v % respectively) and pulegon (~ 36 and ~ 25 v/v % respectively). The samples of 'Apricot' Sprite' essential oil were rich in isomentone (~ 46 v/v %) and pulegon (~ 41 v/v %). All tested essential oils contained (+)-menton and (+)-pulegon enantiomeric forms only. The antibacterial activity of dimethylsulfoxide and ethanolic essential oil solutions against Staphylococcus aureus, Salmonella alony, Bacillus subtilis, Clostridium sp., Escherichia coli Hfr H, Pseudomonas aeruginosa was proved. Ethanol solutions of essential oils at the concentrations 0.001–0.1 v/v % had significant bactericidal activity. A correlation between the composition of the essential oil and their antibacterial properties was established.


2020 ◽  
pp. 165-170
Author(s):  
Ra"no Botirovna Karabaeva ◽  
Alidzhan Aminovich Ibragimov ◽  
Otabek Mamadaliyevich Nazarov

The article presents the results of determining the composition of essential oils of Prunus persica var. nectarina varieties "yellow nectarine" – "sariк luchchak (uzb.) ", growing in two regions of the Ferghana region of the Republic of Uzbekistan. The pale yellow essential oil was obtained by hydrodistillation from un-dried fresh leaves of plants. The oil composition was determined by chromatography-mass spectrometry on an Agilent 7890 AGC 6890 N gas chromotograph with a quadrupole mass spectrometer (Agilent 5975C inert MSD) as a detector on an HP-5 MS quartz capillary column. An essential oil of pale yellow color was isolated from the leaves of plants. In the composition of essential oils, 56 and 61 compounds were identified in the first and second samples, respectively, wich is 94.55 and 96.00% of the total components. The dominant components of the first saple are camphor bicyclic monoterpene ketones (24.21%), α-thujone (15.00%) and β-thujone (4.27%), aromatic aldehyde benzaldehyde (18.83%) and isobornoleol bicyclic monoterpene alcohol (6.17%). In the second sample, bicyclic monoterpenic ketones (camphor) (36.67%), α-thujone (21.81%) and β-thujone (7.06%) and bicyclic monoterpene alcohol isobornoleol (9.4%) predominate and monocyclic unsaturated monoterpene α-terpinene (2.18%). In both samples, (+)-2-bornanone (camphor) is predominant. The studied variety Prunus persica var. nectarina can serve as a raw material for the production of essential oil, the main components of which are camphor and isobornoleol.


2011 ◽  
Vol 20 (No. 6) ◽  
pp. 223-228 ◽  
Author(s):  
M. Özcan ◽  
J.-C. Chalchat

The constituents of essential oils isolated by hydrodistillation of the overground parts of Ocimum basilicum L. and Ocimum minimum L. from Turkey were examined by GC-MS. A total of 49 and 41 components, respectively, were identified accounting for 88.1% and 74.4% of the oils of O. basilicum and O. minimum, respectively. The oil of O. basilicum contained, as main components, methyl eugenol (78.02%), α-cubebene (6.17%), nerol (0.83%) and ε-muurolene (0.74%). Major compounds in the volatile oil of O. minimum were geranyl acetate (69.48%), terpinen-4-ol (2.35%) and octan-3-yl-acetate (0.72%). The essential oil of O. basilicum was characterised by its high content of methyl eugenol (78.02%), whereas the most important essential oil constituent of O. minimum was geranyl acetate (69.48%).    


2018 ◽  
pp. 99-104
Author(s):  
Adelya Sametovna Baimukhambetova ◽  
Lyudmila Timofeyevna Sukhenko ◽  
Anatoliy Valeriyevich Velikorodov ◽  
Mikhail Alekseyevich Egorov ◽  
Gabriele Capodaglio

Plants of Helichrysum genus belong to Asteraceae family and abound with species. The’re two species of plants of Helichrysum genus in the Astrakhan region – Helichrysum arenarium Moench and Hеlichrisum nogaicum Zvelev that was discovered later and isn’t studied well enough yet. Helichrysum arenarium is a well-known medical plant widely used in both academic and traditional medicine and included into the State Pharmacopoeia. Inflorescences of Helichrysum arenarium produce cholagogic, hemostatic, detoxicating, laxative, anti-inflammatory and diuretic effects, which is due to content of flavonoids, terpenoids and other components. This works shows results of studies of chemical composition of extracted essential oils of Hеlichrisum nogaicum and Helichrysum arenarium growing in the Astrakhan Region. Samples of essential oils of plants under studies have been obtained by steam distillation. Optimal steam distillation process duration has been determined by experiment taking studies of dynamics of essential oil yield change through time as a ground. Quantitative analysis of main components of Helichrysum arenarium and Hеlichrisum nogaicum essential oils has been carried out by gas-liquid chromatography. It has been identified that Helichrysum arenarium essential oil contains 21 substances. Its main components are camphor (14.59%) and carboxylic acids (37.02%), and 1,8-cineole (5.97%). The main components of the oil Helichrisum nogaicum are camphor (38.33%), borneol (14.21%), cineol-1.8 (11.37%) and terpene-4-ol (5.18%), sesquiterpene compounds (6.28%), and the content of carboxylic acids is insignificant and amounts to 6.58%.


2019 ◽  
pp. 191-199 ◽  
Author(s):  
Наталья (Natal'ya) Александровна (Aleksandrovna) Коваленко (Kovalenko) ◽  
Татьяна (Tat'yana) Игоревна (Igorevna) Ахрамович (Ahramovich) ◽  
Галина (Galina) Николаевна (Nikolaevna) Супиченко (Supichenko) ◽  
Татьяна (Tat'yana) Владимировна (Vladimirovna) Сачивко (Sachivko) ◽  
Виктор (Viktor) Николаевич (Nikolaevich) Босак (Bosak)

The steam distillation method was used to obtain samples of essential oil of plants of three varieties Hyssopus officinalis L., cultivated in the conditions of the Republic of Belarus. More than 20 components were identified and determined in the essential oils of plants of the varieties Lazurit, Rozotsvetkovy, Zaveya by gas-liquid chromatography. It has been established that the studied varieties of Hyssopus officinalis belong to the pinocamphone chemotype. The main components are pinocamphone (67.6–76.0%), β-pinene, eugenol, limonene, camphene, sabinene, linalool, 1,8-cineole, α-terpineol, α-pinene, γ-terpinene and pinocampheol. The distribution of the enantiomers of a-and b-pinenes, camphene, limonene and linalool was established in the studied samples. Antimicrobial activity of essential oils and optical isomers of pure β-pinene was investigated on Staphylococcus aureus, Salmonella alony, Bacillus subtilis, Clostridium sp., Escherichia coli Hfr H, Pseudomonas aeruosa by disc method. It is shown that (+)-β-pinene showed higher antibacterial activity to (-)-β-pinene. The increased content of (+)-β-pinene in the varieties of Hyssopus officinalis with pink (Rosacea variety) and white (Zaveya variety) aureoles of flowers caused a higher antibacterial activity of their essential oils against Gram-negative and Gram-positive bacteria.


Author(s):  
Beschasnyi S.P. ◽  
Lysenko E.M. ◽  
Hasiuk O.M. ◽  
Erlish О.О.

Carbon monoxide is a toxic gas that is colourless, odourless, and has the potential to cause momentaryhypoxia by bonding with heme-inspired proteins. Because of these properties, it causes the highest number of toxications. Due to its properties, this gas causes damage to the nervous and cardiovascular system. The development of anoxia is associated with the impact on the system of oxidative phosphorylation in mitochondria and the development of oxidative stress in the body. The body produces a small amount of carbon monoxide as a result of erythrocyte breakdown. Picomolar concentrations of carbon monoxide even have anti-inflammatory, antiapoptotic,cytoprotective and antiproliferative properties. Kidney is one of the first organs,that responds to the occurrence of hypoxia, are responsible for the removal of products of metabolism and toxicants, including ethanol. For the study, the blood and urine samples were taken from patients with acute intoxication. The amount of methemoglobin in the blood was determined by spectrophotometric method. The concentration of ethanol in blood and urine was measured by gas-liquid chromatography method. The correlation analysis showed that carbon monoxide affects the rate of excretion of ethanol from the body. Among individuals under 40 years of age, there was a correlation between the level of carbon monoxide and the amount of ethanol in the blood. Among older adults this correlation was not established. A direct correlation with the level of this gas in the blood and the level of ethanol in the urine among people under 40 years of age was found. Among older individuals, the opposite was observed –a high level of methemoglobin was responsible for the decreased level of ethanol. There were no correlations between methemoglobin level and age. Comparison of the studied indices did not show any sexual differences in ethanol excretion, but there were age specific features: ethanol excretion under the influence of carbon monoxide among people under 40 years old was more accelerated.Key words:hypoxia, CO intoxication, blood, methemoglobin, kidneys. Монооксид карбону являє собою токсичний газ, який не має кольору,без запаху та здатен спричиняти миттєву гіпоксію шляхом зв’язування з гем-вмісними білками. Через такі властивості він спричиняє найбільшу кількість отруєнь. Цей газ,завдяки своїм властивостям,спричиняє ураження нервової та серцево-судинної системи. Розвиток аноксії пов’язаний із впливом на систему окисного фосфорилювання у мітохондріях та розвиткомоксидативного стресу. В організмі продукується невелика кількість ендогенного монооксиду карбону внаслідок розпаду еритроцитів. Пікомолярні концентрації монооксиду карбону навіть володіють протизапальними, антиапоптичними, цитопротекторними та антипроліферативними властивостями. Нирки є одним із перших органів, який реагує на розвитокгіпоксії, вони відповідають за видалення продуктів метаболізму й токсикантів, зокрема етанолу.Зміни у функціонуванні нирок відображаються на загальному стані організму.Для дослідження отримували зразки крові та сечі від осіб із гострою інтоксикацією. У крові спектрофотометричним методом визначали вміст метгемоглобіну, який утворювався внаслідок вдихання монооксиду карбону та відповідного потрапляння до кровоносної системи. Методом газово-рідинної хроматографії вимірювали концентрацію етанолу у крові та сечі. Розрахунок кореляційних зв’язків показав, що монооксид карбону впливає на швидкість екскреції етанолу. У осіб до 40 років спостерігалася кореляція між показником рівня метгемоглобінута вмістом етанолу у крові. У осіб старшого віку цього зв’язку не встановлено. Виявлено прямий зв’язок із рівнем цього газу у крові та рівнем етанолу в сечі у осіб до 40 років. У осіб старшого віку спостерігалася зворотня реакція–високий рівень метгемоглобінуобумовлював зниження рівня етанолу. Кореляційні зв’язки між вмістом метгемоглобіну та віком не було виявлено. Порівняння досліджуваних показників не виявило статевих відмінностей у екскреції етанолу, проте виявлено вікові особливості: екскреція етанолу в умовах впливу монооксиду карбону в осіб до 40 років була більш пришвидшена.Таким чином, можна стверджувати, що монооксид карбону обумовлює зміни у функціональній активності нирок.Ключові слова:гіпоксія, інтоксикація СО, кров, метгемоглобін, нирки.


2021 ◽  
pp. 211-217
Author(s):  
Irina Dement'yevna Zykova ◽  
Aleksandr Alekseyevich Efremov

The antiradical properties of essential oils from the inflorescences of Filipendula ulmaria (L). Maxim, herbages Hypericum perforatum L. and Pulmonaria mollis Wulfen ex HORNEM., growing on the territory of the Krasnoyarsk territory were studied. For this purpose, the reaction of essential oil components with a stable free 2,2-diphenyl-1-picrylhydrazyl radical was used. Essential oil of the plants under study received comprehensive hydroponically. The component composition of the oils was determined by chromatography-mass spectrometry. The main components of essential oil of F. ulmaria inflorescences are methyl salicylate (28.2%), salicylic aldehyde (2.8 %) and linalool (4.9%), essential oil of H. perforatum – γ - amorphene (30.7%), δ-cadinen (7.1%), (E, E)-β-farnesene (5.5%), caryophyllene (5.0%), ledol (5.0%), essential oil of P. mollis – di-n-butyl phthalate (18.7%), docosan (13.4%), tetracosan (11.6 %). The results of the DPPH test showed that the essential oils of the inflorescences of F. ulmaria and the aboveground part of H. perforatum and P. mollis exhibit antiradical activity (ARA). According to the size of the ARA of essential oils, the studied plants can be arranged in the following row: P. mollis > F. ulmaria > H. perforatum.


Molecules ◽  
2021 ◽  
Vol 26 (20) ◽  
pp. 6311
Author(s):  
Paulina J. Cázares-Samaniego ◽  
Claudia G. Castillo ◽  
Miguel A. Ramos-López ◽  
Marco M. González-Chávez

Ulomoides dermestoides are used as a broad-spectrum medical insect in the alternative treatment of various diseases. Preliminary volatilome studies carried out to date have shown, as the main components, methyl-1,4-benzoquinone, ethyl-1,4-benzoquinone, 1-tridecene, 1-pentadecene, and limonene. This work focused on the production of metabolites and their metabolic variations in U. dermestoides under stress conditions to provide additional valuable information to help better understand the broad-spectrum medical uses. To this end, VOCs were characterized by HS-SPME with PEG and CAR/PDMS fibers, and the first reported insect essential oils were obtained. In HS-SMPE, we found 17 terpenes, six quinones, five alkenes, and four aromatic compounds; in the essential oils, 53 terpenes, 54 carboxylic acids and derivatives, three alkynes, 12 alkenes (1-Pentadecene, EOT1: 77.6% and EOT2: 57.9%), 28 alkanes, nine alkyl disulfides, three aromatic compounds, 19 alcohols, three quinones, and 12 aldehydes were identified. Between both study approaches, a total of 171 secondary metabolites were identified with no previous report for U. dermestoides. A considerable number of the identified metabolites showed previous studies of the activity of pharmacological interest. Therefore, considering the wide variety of activities reported for these metabolites, this work allows a broader vision of the therapeutic potential of U. dermestoides in traditional medicine.


2021 ◽  
Author(s):  
Li Liu ◽  
Gongxiu He ◽  
Xu Wang ◽  
Dangquan Zhang

Abstract Background: Phoebe bournei is a potential medicinal plant whose essential oil (EO) from leaves has potential inhibitory activities against some bacterium, tumor, and has a certain potential for hypoglycemic activity. Fertilization is a common and effective method to increase plant biomass, which can increase the raw material of essential oil, but has a certain impact on the composition and biological activity of plant essential oil. Results: The main components are sesquiterpenes in the essential oils from leaves and twigs. The yield of the essential oils and the content of their main components can be modulated by compost and compound fertilizer, to different degrees, and minor differences were registered among the categories of the components in essential oils. However, changes were strongly mirrored in some main components of essential oils. The content of the primary (+) - calarene in the leaf EO were strongly increased by compost, but the opposite happened by compound fertilizer. On the contrary, the effect of compound fertilizer was more significant on the main components of twig essential oil than compost. The transcriptome sequencing results of P. bournei showed that the total number of DEGs in twigs and leaves treated with compost were significantly more than that with compound fertilizer. No change was found in the expression of genes regulating principal components. However, the expression of several key genes regulating the upstream substrates for the synthesis of the sesquiterpenes was significantly changed: the expression of two key speed limiting enzymes genes (DXS and HMGR) and two important branch-point enzyme genes (FPPS and GGPPS) was significantly down regulated, while the expression of gene (HMGS) was significantly up-regulated.Conclusion: The expression levels of genes (DXS2, HMGR, FPPS and GGPPS) were significantly down regulated in leaves treated with compost, resulting in the changes of the yield and main components of the leaf essential oil. The effect of compost was more significant on the synthesis of the essential oil from P. bournei leaves than that of compound fertilizer.


2015 ◽  
Vol 43 (2) ◽  
pp. 432-438 ◽  
Author(s):  
Aneta WESOŁOWSKA ◽  
Monika GRZESZCZUK ◽  
Dorota JADCZAK ◽  
Paweł NAWROTEK ◽  
Magdalena STRUK

The chemical composition of the essential oils obtained by hydrodistillation from the aerial parts of Thymus serpyllum and Thymus serpyllum‘Aureus’ has been investigated by gas chromatography-mass spectrometry (GC-MS). Forty-seven compounds (99.67% of the total oil) wereidentified in the essential oil of T. serpyllum. The main components found in the oil were carvacrol (37.49%), -terpinene (10.79%), -caryophyllene (6.51%), p-cymene (6.06%), (E)--ocimene (4.63%) and -bisabolene (4.51%). Similarly, carvacrol (44.93%), -terpinene(10.08%), p-cymene (7.39%) and -caryophyllene (6.77%) dominated in the oil of T. serpyllum ‘Aureus’. A total of forty three compounds wereidentified in this oil, representing 99.49% of the total oil content. On the basis of the obtained data it was proved that the content of 1-octen-3-ol,eucalyptol, (Z)--ocimene, (E)--ocimene, -terpinene, carvacrol methyl ether, germacrene D and -bisabolene was significantly higher for T.serpyllum while T. serpyllum ‘Aureus’ was characterized by a significantly higher content of 3-octanone, 3-octanol, p-cymene, borneol andcarvacrol. The isolated essential oils were evaluated for their antimicrobial activity against nine reference strains (Escherichia coli, Staphylococcusaureus, Staphylococcus epidermidis, Streptococcus agalactiae, Enterococcus faecalis, Bacillus cereus, Micrococcus luteus, Proteus vulgaris and Candidaalbicans) by the microdilution technique. Based on this test, the minimum inhibitory concentrations (MIC) of essential oil were calculated. Thevolatile oil obtained from T. serpyllum showed the highest antimicrobial activity relative to the strain of E. coli (MIC=0.025 μL/mL) and to theyeast C. albicans (MIC=0.05 μL/mL). Similarly, a significant antimicrobial activity exhibited T. serpyllum ‘Aureus’ essential oil, although the MICvalues obtained in that case for E. coli and C. albicans strains were twice as high and were respectively 0.05 μL/mL and 0.1 μL/mL.


Sign in / Sign up

Export Citation Format

Share Document