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Chemical Composition of The Essential Oil of Carduncellus Helenioides (Desf.)Hanelt from Algeria

F. Meratate1*, A. Lalaoui2, K. Rebbas3, O. K. Belhadad1, N. I. Hammadou4, H. Meratate5, I. Demirtas7, S. Akkal6and H. Laouer 8

1 Department of chemistry, University of M’sila, Algeria.

2 University of Algiers, Algeria.

3 Department of Natural and Life Sciences, University of M’sila, Algeria.

4 Faculty of medicine, University of Algiers, Algeria.

5 Department of pharmacy, Algeria.

6 Department of Chemistry, Çankırı Karatekin University, Çankırı, Türkiye.

7 Department of chemistry, University of Constantine , Algeria.

8 Department of Natural and Life Sciences, University of setif 1, Algeria .

Corresponding Author E-mail : faizachimie@hotmail.fr

DOI : http://dx.doi.org/10.13005/ojc/320304

Article Publishing History
Article Received on : April 23, 2016
Article Accepted on : May 30, 2016
Article Metrics
ABSTRACT:

The essential oil extracted from Carduncellus helenioides was analyzed using GC/EIMS. It was characterized by diepicedrene-1-oxide (10.6%), isoaromadendrene epoxide (7.1 %), caryophyllene oxide (6.20 %) , eudesmol (6.17 %) and aromadendrene oxide (1.3 %) as major constituents. The antibacterial activity of the essential oil of this plant were carrying out by disc diffusion method against four bacterial strains and the oil was only active against Staphylococcus aureus ATCC 25923.

KEYWORDS:

Carduncellus helenioides; essential oil; caryophyllene oxide; isoaromadendrene epoxide; antibacterial activity

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Meratate F, Lalaoui A, Rebbas K, Belhadad O. K, Hammadou N. I, Meratate H, Demirtas I, Akkal S, Laouer H. Chemical Composition of The Essential Oil of Carduncellus Helenioides (Desf.)Hanelt from Algeria. Orient J Chem 2016;32(3).


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Meratate F, Lalaoui A, Rebbas K, Belhadad O. K, Hammadou N. I, Meratate H, Demirtas I, Akkal S, Laouer H. Chemical Composition of The Essential Oil of Carduncellus Helenioides (Desf.)Hanelt from Algeria. Orient J Chem 2016;32(3). Available from: http://www.orientjchem.org/?p=18148


Introduction

The term of medicinal plants include a various types of plants used in herbalism and some of these plants have a medicinal activities. These medicinal plants consider as a rich resources of ingredients which can be used in drug development and synthesis 1. Essential oils are concentrated liquids of complex mixtures of volatile compounds and can be extracted from several plant organs. Essential oils are a good source of several bioactive compounds, which possess antioxidative and antimicrobial properties 2. Asteraceae (Compositae) is the richest vascular plant family in the world, with 1600 to 1700 genera and 24,000 to 30,000 species. They are  easily distinguished by the florets grouped in capitula, and the fruit, a cypsela often with a pappus 3.

The genus Carthamus includes 18 species of which C.tinctorius L. is the only cultivated species 4. Carthamus species probably originate from Southern Asia and is known to have been cultivated in China, India, Iran and Egypt 5.

Carduncellus helenioides (syn.Carthamus helenioides Desf.) is a high powerful plant (30-100 cm). Stem erect, simple or rower, firm and ridged. Yellow flowers. hairless, leathery leaves, ovate-lanceolate with great ribs, whole or scarcely denticulate, except sometimes the latest; stalked the lower and upper amplexicaul. Big heads of 4-5 cm in diameter, inverted and worn by a thickened stem.Involucre extra large, oval-lanceolatefoliaceus and finely serrated bracts. Involucre itself to ciliated bracts, entire last ending in Appendix ciliated and scarious. This is a clay Asteraceae places; Algerian-Moroccan 6.

In this study we sought to characterize the essential oils extracted from C.helenioides, as well as to evaluate their antibacterial activities. As far as we know, there is no report on volatile constituents of C.helenioides and this is the first study on the chemical composition and antibacterial effects of essential oils from this plant.

 Material and Methods

 Plant material

The Aerial parts (leaves, stems and flowers) of Carduncellus helenioides were collected during their flowering stage from M’sila in May 2015 (Figure 1). The plant was identified by Dr  khellaf Rebbas (university of M’sila).

 

Fig. 1.  Carduncellus helenioides Figure 1: Carduncellus helenioides

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Essential oil isolation

Isolation  of  essential  oils was  performed using hydrodistillation of aerial parts of Carduncellus helenioides using a Clevenger-type apparatus over 3 hours. The oils were dried over sodium sulphate7.

Qualitative and Quantitative analyses

Gas Chromatography with Electron Impact Mass Spectrometry (GC/EIMS) was performed using a Agilent technologies gas chromatograph equipped with a HP-5ms capillary column (30 m×0.25 mm; coating thickness 0.25 μm) and a 5975Cinert MSD, with Triple-Axis detector (Agilent Technology). The analytical conditions were as follows: injector temperature, 250; oven temperature, programmed from 60°C to 240°C at 4°C/min; carrier gas helium at 1 ml/min; injection of 1 μl (10% hexane solution); and split ratio, 1:20. Constituents were identified retention index (RT) and by matching their recorded mass spectra with the Standard mass spectra from the NIST05, Wiley and flavor2 libraries data provided by the software of the GC–MS system`.

Antimicrobial assay

Microbial strains

The antimicrobial activities of essential oil were tested against four bacteria species, selected as representative of the class of Gram-positive: S. aureus (ATCC 25923), Entecococcus faecalis. Gram-negative: Escherichia coli (ATCC 25922), Pseudomonas aeruginosa (ATCC 27853). The inhibition effect on microbe growth was determined by the disc diffusion method using suspension containing colony of bacteria spread on Muller-Hinton agar (MHA) medium. Sterile 6 mm diameter filter paper discs were impregnated with 10µl of essential oil was deposited at equal distances on the surface of the inoculated agar (MHA for antibacterial assay). Cultures were then incubated at 37 °C for 24h. The diameter of inhibition zones was measured. Standard reference antibiotics (Gentamicin and Amoxicillin) were used as positive control. We used as a negative control disc impregnated with solvent (Diethyl ether) without essential oil.

The inhibition zone was measured using ruler and recorded for statistical analysis8.

Results and Discussion

The yield of volatile oil tended to increase before flowering 0.9 % and decrease once flowering 1,16 % [(w/w) based on the dry weight of the plant] of a yellow and perfumery odor oil. Forty-four constituents were characterized and listed in order of their elution in Table 1 which indicates the percentage and retention time (RT) of each component. The compounds represent 85.57% of the total oil. The major constituents were diepicedrene-1-oxide (10.6%), isoaromadendrene epoxide (7.1%), caryophyllene oxide (6.20 %) and β-eudesmol (6.17%), aromadendrene oxide (1.3 %).

The oil contains low proportion of monoterpenes (0.4 %), oxygenated monoterpenes (0.63 %), sesquiterpene (3.2 %) and high proportion of oxygenated sesquiterpenes (25.97 %)in which diepicedrene-1-oxide (10.6 %) and isoaromadendrene epoxide (7.1 %),caryophyllene oxide (6.20 %),eudesmol (6.17 %),aromadendrene oxide (1.3 %) were the major constituents. Besides there are esters (6.6 %) and fatty acid (7.80%).caryophyllene oxide is the main oxygenated sesquiterpene together with eudesmol and isoaromadendrene epoxide.

Compared to other carduncellus species such as C. tinctorius, the major constituents  of the oil of flower were 1-hydroxy-3-propyl-5-(4-methyl-penten)-2-methylbenzene  (25.2%),  2,5,5 trimethyl-3-propyl,tetra  hydro  1-naphtol  (19.8%), benzaldehyde  (8.0%),  caryophyllene  oxide  (6.5%)  and lauric  acid  (5.1%) 9. We observed that the chemical compositions of the two oils do not show much similarity, although the plant species belong to the same genus. Of all the identified components, only caryophyllene oxide occurs inappreciable amounts in both species.

Fig. 2. GC/EIMS of the essential oil of Carduncellus helenioides Figure 2: GC/EIMS of the essential oil of Carduncellus helenioides

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Table 1: Essential oil composition of Carduncellus helenioides.

Constituents

RT

%

Monoterpene
  Limonene 15.725 0.4
 
  Total   0.4
Oxygenated Monoterpenes 
  Linalool 18.023 0.4
  1,6-Dihydrocarveol 21.458 0.2
 
  Total   0.6
Sesquiterpene
  Caryophyllene 29.354 0.4
  α-Cedrene 29.205 1.0
  β-Cedrene 29.51 0.7
  β-Guaiene 31.45 0.6
  3α,4β-Dihydroxy-1,5,7α(H),6β(H)-guai-10(15),11(13)-dien-6,12-olide 38.887 0.5
       
  Total   3.2
Oxygenated Sesquiterpenes
β-Nootkatol 28.903 0.9
Caryophyllene oxide 34.456 6.2
Aromadendrene oxide 34.69 1.3
Isoaromadendrene epoxide 34.171 7.1
Alloaromadendrene oxide 39.439 0.2
β-Eudesmol 36.33 6.17
Hexahydrofarnesyl acetone 40.831 3.8
Hexa-hydro-farnesol 37.931 0.3
       
  Total   25.97
Esters
  Methyl (E,Z)-2,4-decadienoate 28.02 5.4
  2,4-Decadienoic acid, ethyl ester 30.262 0.7
  7-Methyl-Z-tetradecen-1-ol acetate 42.226 0.5
       
  Total   6.6
Fatty acid
  Dodecanoic acid 33.129 1.0
  Tetradecanoic acid 38.688 2.7
  Hexadecanoic acid 43.802 4.1
       
  Total   7.8
Others
Epoxycyclooctane 14.404 0.6
6-Nonenal 17.904 0.5
Nonanal 18.151 0.3
7′-Oxaspiro[cyclopropane-1,4′-tricyclo[3.3.1.0(6,8)]nonan-2′-one] 20.973 0.2
Decanal 21.695 0.5
5-Cyclodecene, 1,2-epoxy- 23.458 0.6
Falcarinol 23.692 0.3
3-Methyl-2-pent-2-enyl-cyclopent-2-enone 27.056 0.8
alfa-Copaene 27.841 0.7
Tetracyclo[6.3.2.0(2,5).0(1,8)]tridecan-9-ol, 4,4-dimethyl- 35.911 6.2
2,13-Octadecadien-1-ol 36.201 5.0
7R,8R-8-Hydroxy-4-isopropylidene-7-methylbicyclo[5.3.1]undec-1-ene 37.253 0.7
2-Methyl-Z,Z-3,13-octadecadienol 37.392 0.7
9-Isopropyl-1-methyl-2-methylene-5-oxatricyclo[5.4.0.0(3,8)]undecane 37.603 0.7
Dihydropseudoionone 29.866 0.1
β-bisabolol 30.925 0.9
β-Ionone 31.14 1.2
Myristicine 32.237 2.0
1,7-Octadiene, 2,5-bis-(cis)-(2,2-dimethyl-3-carboxycyclopropyl)- 41.086 1.5
  Ethanol, 2-(9,12-octadecadienyloxy) 41.437 3.3
  Neocurdione 42.673 3.0
       
  Total   29.8

 

Figure 3: The main constituents of Carduncellus helenioides essential oil Figure 3: The main constituents of Carduncellus helenioides essential oil
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Table 2: Antibacterial activity of Carduncellus helenioides essential oil.

 

 

Inhibition zone (mm)

 

Enterococcusfaecalis

Escherichia coliATCC 25922

Staphylococcus aureus

ATCC 25923

Pseudomonas aeruginosaATCC 27853.

 

 

 

 

 

 

 

 

 

 

 

 

Essential oil

10µl

/

/

11

/

 

 

 

 

 

 

Gentamicin

(10µg/disk)

/

28

27

22

 

 

 

 

 

 

Amoxicillin

(10µg/disk)

32

/

/

/

 

 

 

 

 

 

 

Considering the large number of different groups of chemical compounds present in essential oil, it is most likely that their antibacterial activity is not attributable to one specific mechanism but that there are several targets in the cell10,11. The locations or mechanisms in the bacterial cell thought to be sites of action for EO components are indicated in Figure (4) 12.

Fig. 4. Sites of action for essential oils components Figure 4: Sites of action for essential oils components 

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The results regarding the antibacterial activity of the essential oil of Carduncellus helenioides are indicated in Table 2. The results obtained from disc diffusion method indicated that Staphylococcus aureus ATCC 25923 was sensitive microorganisms with diameters of inhibition of 11 mm lower than the standard Gentamicin 27mm . On the other hand, The essential oil did not display any antibacterial against Enterococcus faecalis , Escherichia coli ATCC 25922, Pseudomonas aeruginosa ATCC 27853.It is remarkable that the oil exhibited a specific activity against the gram positive bacteria S.aureus .These results are consistent with previous reports in the literature indicating that Gram-positive bacteria are more susceptible to essential oil than Gram-negative bacteria 13, 14.

This antimicrobial activity is suspected to be associated with the high percentage of caryophyllene oxide and the presence of caryophyllene, dodecanoic acid, limonene and linalool. The synergistic effects of the diverse major and minor components of the essential oil should be taken into consideration to account for the oil biological activity 15

Bougatsosa and their collaborators (2004) were tested the antibacterial activity of caryophyllene oxide,β-caryophylleneand linalool against many bacteria and they concluded that the antibacterial activity of the oil may in part be associated with the high percentage of caryophyllene oxide and linalool. Besides, the antibacterial properties of caryophyllene oxide have been reported previously 16, 17, 18.

Conclusion

The present study demonstrate that the most abundant constiutants of Carduncellus helenioides essential oil (EO) from M’sila are diepicedrene-1-oxide (10.6 %) and isoaromadendrene epoxide (7.1 %),caryophyllene oxide (6.20 %), eudesmol (6.17 %),aromadendrene epoxide (1.3 %).Our results demonstrated that EO of Carduncellus helenioides present antibacterial activity  against Staphylococcus aureus ATCC 25923 and any  antibacterial activity against Entecococcus faecalis, Escherichia coli ATCC 25922 and Pseudomonas aeruginosa ATCC 27853. However, further studies about the safety and toxicity of this oil are needed, in order to evaluate possible clinical application in therapy of infectious diseases.

Acknowledgements

The authors thank  Dr. Lakhdar Djarri from Constantine University to extract the essential oil of our plant and we thank pasteur institute (m‘sila) for their kind support.

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