scholarly journals Comparative study the essential oil composition of flowers and leaves of Crataegus monogyna L.

Author(s):  
Natalia Sydora ◽  
Olena Konovalova ◽  
Svetlana Zuikina ◽  
Kateryna Semchenko ◽  
Anna Rudnyk ◽  
...  

The aim of the work was to obtain essential oil from the leaves and flowers of the genus Hawthorn Crataegus monogyna L. and study its component composition to justify the possibility of expanding the use of this herbal drugs in medicine. Materials and methods. The leaves and flowers of Сrataegus monogyna L., which were used to obtain essential oil, were harvested in the western region of Ukraine in 2019. The quantitative content of essential oil in the herbal drugs was determined by hydrodistillation. By used chromato-mass spectrometry method determined the component composition of essential oil of leaves and flowers of Сrataegus monogyna L. The obtained spectra were compared with the library of mass spectra NIST05 and WILEY 2007 with a total number of spectra over 470000 in combination with programs for identification AMDIS and NIST.Results. The essential oil of leaves and flowers of Сrataegus monogyna L. was obtained and its quantitative content was determined, which was 0.15±0.02 % for flowers and 0.11±0.03 % for leaves. By used chromato-mass spectrometric method in the essential oil of flowers of Сrataegus monogyna L. revealed 37 compounds, leaves – 33. In the essential oil of flowers found monoterpenoids, the content of which was 0.44 % of the total, triterpenoids 7.17 %, aromatic compounds 12.61 %. In the essential oil of leaves were found monoterpenoids 37.8 %, aromatic compounds 10.25 %, norterpenoids 3.62 %, sesquiterpenoids 4.02 %, diterpenoids 2.17 %, triterpenoids 5.08 %.Conclusions. Due to the defined component composition of the essential oil of flowers and leaves of Сrataegus monogyna L., we consider its use to create drugs of external action for the treatment of skin diseases of various etiologies caused by staphylococcal and fungal microflora.

2017 ◽  
Author(s):  
Xueming Dong

Catalytic deoxygenation of coal enhances the stability and combustion performance of coal-derived liquids. However, determination of the selectivity of removal of oxygen atoms incorporated in or residing outside of aromatic rings is challenging. This limits the ability to evaluate the success of catalytic deoxygenation processes. A mass spectrometric method, in-source collision-activated dissociation (ISCAD), combined with high resolution product ion detection, is demonstrated to allow the determination of whether the oxygen atoms in aromatic compounds reside outside of aromatic rings or are part of the aromatic system, because alkyl chains can be removed from aromatic cores via ISCAD. Application of this method for the analysis of a subbituminous coal treated using a supported catalyst revealed that the catalytic treatment reduced the number of oxygen-containing heteroaromatic rings but not the number of oxygen atoms residing outside the aromatic rings.<br>


2017 ◽  
Author(s):  
Xueming Dong

Catalytic deoxygenation of coal enhances the stability and combustion performance of coal-derived liquids. However, determination of the selectivity of removal of oxygen atoms incorporated in or residing outside of aromatic rings is challenging. This limits the ability to evaluate the success of catalytic deoxygenation processes. A mass spectrometric method, in-source collision-activated dissociation (ISCAD), combined with high resolution product ion detection, is demonstrated to allow the determination of whether the oxygen atoms in aromatic compounds reside outside of aromatic rings or are part of the aromatic system, because alkyl chains can be removed from aromatic cores via ISCAD. Application of this method for the analysis of a subbituminous coal treated using a supported catalyst revealed that the catalytic treatment reduced the number of oxygen-containing heteroaromatic rings but not the number of oxygen atoms residing outside the aromatic rings.<br>


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.


Author(s):  
M. S. Yaremenko ◽  
T. M. Gontova ◽  
L. M. Sira

Introduction. Acoruscalamus L. is a perspective medical plant for complex use in medicine.The aim of the study – comparison of the quantitative content of essential oil and its component composition in the rhizomes and leaves of calamus, establishing the prospects for using leaves, revealing the morphological and anatomical diagnostic features of leaves as a new raw material.Research Methods. The content and composition of the essential oil were studied using the CMS method, the microscopic characteristics of the raw material – generally accepted analytical methods.Results and Discussion. A comparative analysis of the quantitative content and qualitative composition of the essential oil components of the acoruscalamus were conducted. The established diagnostic morphological and anatomical signs of the leaves will be used in the development of normative documentation – quality control methods (QCM) for additional raw materials.Conclusion. The results of the studies indicate the prospect of further pharmacognostic study of the leaves of the calamus as an additional and accessible raw material.


2009 ◽  
Vol 4 (3) ◽  
pp. 1934578X0900400 ◽  
Author(s):  
Patrícia Natália B. de Lira ◽  
Joyce Kelly R. da Silva ◽  
Eloisa Helena A. Andrade ◽  
Pergentino José C. Sousa ◽  
Nayla N. S. Silva ◽  
...  

The essential oils of three species of Peperomia from the Amazon, Brazil, were hydrodistilled and their 96 volatile constituents identified by GC and GC-MS. The main constituents found in the oil of P. macrostachya were epi-α-bisabolol (15.9%), caryophyllene oxide (12.9%), myristicin (7.6%), an aromatic compound (6.6%) and limonene (5.4%). The oil of P. pellucida was dominated by dillapiole (55.3%), ( E)-caryophyllene (14.3%) and carotol (8.1%). The major volatile found in the oil of P. rotundifolia was decanal (43.3%), probably a fatty acid-derived compound, followed by dihydro-β-santalol (9.0%), ( E)-nerolidol (7.9%) and limonene (7.7%). The aromatic compounds elemicin, myristicin, apiole, dillapiole and safrole identified in these Peperomia species has been found also in Amazon Piper species. The oils and methanol extracts showed high brine shrimp larvicidal activities. The oil of P. rotundifolia (LC50 = 1.9 ± 0.1 μg/mL) was the more toxic, followed by the extract of P. pellucida (LC50 = 2.4 ± 0.5 μg/mL) and the oil of P. macrostachya (LC50 = 9.0 ± 0.4 μg/mL), therefore with important biological properties.


2021 ◽  
Vol 19 (3(75)) ◽  
pp. 47-52
Author(s):  
Irina Yu. Posohova ◽  
Olha P. Khvorost ◽  
Kateryna S. Skrebtsova ◽  
Yuliia A. Fedchenkova

Aim. To study the qualitative composition and the quantitative content of the essential oil components from Laurus nobilis L. unripe fruits.Results and discussion. In the essential oil from Laurus nobilis L. unripe fruits 31 compounds were determined; among them 28 substances were identified. A high content was characteristic for spatulenol (1947.1 mg/kg) and betulenol (925.3 mg/kg).Experimental part. The raw material for obtaining the essential oil (unripe fruits) of Laurus nobilis L. was harvested in November 2017 in Alushta and the village of Rybalskoe, Crimea. The component composition of the essential oil of the unripe fruits from Laurus nobilis L. was studied and the constituents of the essential oil were identified by chromato-mass spectrometry using an Agilent Technology 6890N chromatograph. The component composition of the essential oil was revealed by comparing the results obtained with data from the NIST 02 mass spectrum library (more than 174.000 substances).Conclusions. The component composition of the essential oil from Laurus nobilis L. unripe fruits harvested in Ukraine has been studied. Taking into account the set of the biologically active compounds found in the essential oil of Laurus nobilis L. it can be argued that further pharmacognostic studies of fruits of this plant as the medicinal raw material with the predicted pharmacological activity (e.g., antimicrobial and skin cleansing) are promising.


Author(s):  
А. І. Fedosov ◽  
V. S. Kyslychenko ◽  
О. М. Novosel

Introduction. There are over 12 000 medicinal plants encountered nowadays which are a biogenetically formed complex of biologically active compounds (BAC) and are extensively used in scientific as well as folk medicine. The plants which are used as food products and contain a large number of biologically active compounds are of great importance. Artichoke (Cynara scolymus L.) from Asteraceae family belongs to the group of plants which due to the presence of different groups of BAC is widely used as cholagogue, hepatoprotective, diuretic, antisclerotic, anti-inflammatory, analgesic, hypoglycaemic agent. BAC of artichoke is represented by carbohydrates, hydroxycinnamic acids, flavonoids, essential oil etc.The aim of the study – identification and determination of the quantitative content of inulin in the artichoke inflorescences collected inUkraine andFrance.Methods of the research. The presence of inulin in the studied plant material was confirmed using the Molisch’s test. The quantitative content of inulin in the artichoke inflorescences was determined spectrophotometrically (method 1) and by the means of GC chromato-mass-spectrometric method (method 2).Results and Discussion. The appearance of the dark-violet coloring confirmed the presence of inulin in both samples of the plant material studied. The content of fructosanes’ sum, determined spectrophotometrically, was found to be 2.31 % in the artichoke inflorescences collected inUkraine, and 2.77 % in those collected inFrance. The content of inulin determined by the means of GC chromato-mass-spectrometry comprised 119.30 mg/ml and 147.60 mg/ml respectively.Conclusions. The presence of inulin was confirmed using the Molisch’s test in both samples of artichoke inflorescences.The content of inulin in the artichoke inflorescence collected inUkraineandFrancewas determined by the means of spectrophotometric and GC chromato-mass-spectrometric methods of analysis, and comprised 2.31% and 119.30 mg/ml respectively in the artichoke inflorescences collected inUkraine, and 2.77% and 147.60 mg/ml respectively in the artichoke inflorescences collected inFrance. The results obtained allow considering the plant material of artichoke of Ukrainian and French origin interchangeable for the biologically active substances obtaining. 


2018 ◽  
Vol 54 (5) ◽  
pp. 995-997
Author(s):  
R. Kowalski ◽  
G. Kowalska ◽  
K. Kalwa ◽  
M. Sujka

Planta Medica ◽  
2009 ◽  
Vol 75 (09) ◽  
Author(s):  
C Grosso ◽  
G Teixeira ◽  
I Gomes ◽  
ES Martins ◽  
JG Barroso ◽  
...  

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