scholarly journals Volatile Constituents of Two Rare Subspecies of Thymus praecox

2010 ◽  
Vol 5 (7) ◽  
pp. 1934578X1000500 ◽  
Author(s):  
Danijela Vidic ◽  
Sanja Ćavar ◽  
Marija Edita Šolić ◽  
Milka Maksimović
Keyword(s):  
Essential Oil ◽  
Monoterpene Hydrocarbon ◽  
Oil Analysis ◽  
Capillary Gc ◽  
Headspace Volatiles ◽  
Linalyl Acetate ◽  
Volatile Constituents ◽  
First Report ◽  
Oxygenated Monoterpenes ◽  
Ms Analysis

Hydrodistilled essential oil and the corresponding headspace volatiles of Bosnian wild growing Thymus praecox ssp. polytrichus (A. Kern. Ex Borbàs) Jalas and Thymus praecox ssp. skorpilii (Velen.) Jalas were subjected to capillary GC-MS analysis. This work presents a detailed essential oil analysis of these two rare Thymus subspecies from Bosnia, as well as the very first report on their headspace composition. Eighty-seven volatile constituents were identified in four samples. Two alcohols were the major constituents in the essential oil of T. praecox ssp. polytrichus, a monoterpene, linalool (13.9%), and a sesquiterpene, ( E)-nerolidol (10.4%), while linalyl acetate (36.7%) and linalool (22.7%) were the most abundant volatiles in the corresponding headspace sample. Oxygenated monoterpenes (57.5%) predominate in the essential oil of T. praecox ssp. skorpilii with linalyl acetate (28.7%) and linalool (14.4%) as the main representatives. Headspace sample of this subspecies also showed richness in linalyl acetate (52.4%), while the second most abundant compound was α-pinene (14.5%), a monoterpene hydrocarbon.

scholarly journals Volatiles of Tanacetum macrophyllum Obtained by Different Extraction Methods

2018 ◽  
Vol 13 (7) ◽  
pp. 1934578X1801300
Author(s):  
Biljana Nikolić ◽  
Milić Matović ◽  
Marina Todosijević ◽  
Jovana Stanković ◽  
Mirjana Cvetković ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Extraction Methods ◽  
Static Headspace ◽  
Oxygenated Monoterpenes ◽  
Ms Analysis ◽  
Sesquiterpene Hydrocarbons ◽  
Germacrene D ◽  
Headspace Gc

Terpene compounds of Tanacetum macrophyllum as 1) essential oils, obtained by hydrodistillation (HD), 2) essential oil extracts, obtained by simultaneous hydrodistillation and extraction (SDE) and 3) volatiles, obtained by Static Headspace GC-MS analysis (HS) were processed. Monoterpenes were the most dominant (49.2%, 49.5% and 90.4%, respectively). Profiles of essential oils obtained by HD and SD were quite similar, with oxygenated monoterpenes (39.3% and 39.4%) being the most abundant. In HS volatiles oxygenated monoterpenes also dominated (57.4%). Total sesquiterpenes were abundant in HD and SDE volatiles (38.2% and 39.2%, resp.), where sesquiterpene hydrocarbons were prevalent (27.3% and 28.7%, resp.). Germacrene D was dominant in HD and SDE oils (22.0% and 23.3%, resp.) and 1,8-cineole in HS volatiles (34.3%). To our knowledge, this is the first use of Headspace technique on T. macrophyllum. Furthermore, this is the first comparison of different techniques of volatile extraction in T. macrophyllum.

scholarly journals Volatile Constituents of Calamintha origanifolia Boiss. Growing Wild in Lebanon

2007 ◽  
Vol 2 (12) ◽  
pp. 1934578X0700201 ◽  
Author(s):  
Carmen Formisano ◽  
Daniela Rigano ◽  
Francesco Napolitano ◽  
Felice Senatore ◽  
Nelly Apostolides Arnold ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Essential Oil ◽  
Bacterial Strains ◽  
Volatile Constituents ◽  
Oxygenated Monoterpenes ◽  
Aerial Parts

The essential oil of aerial parts of Calamintha origanifolia Boiss. (Lamiaceae), growing wild in Lebanon, was obtained by hydrodistillation and was analysed by GC and GC-MS. 49 compounds, representing 92.2% of the oil, were identified. The major components, belonging to the class of oxygenated monoterpenes, were pulegone (22.5%), isomenthone (12.2%) and piperitenone (9.6%). The oil showed a slight antimicrobial activity against three bacterial strains.

scholarly journals Essential Oil Constituents ofTanacetum cilicicum: Antimicrobial and Phytotoxic Activities

2017 ◽  
Vol 2017 ◽  
pp. 1-11 ◽  
Author(s):  
Zeynep Ulukanli ◽  
Salih Demirci ◽  
Murat Yilmaztekin
Keyword(s):  
Essential Oil ◽  
Mediterranean Region ◽  
Industrial Applications ◽  
Caryophyllene Oxide ◽  
East Mediterranean ◽  
First Report ◽  
Oxygenated Monoterpenes ◽  
Aerial Parts ◽  
Antimicrobial Assay ◽  
East Mediterranean Region

Aerial parts ofTanacetum cilicicumwere hydrodistillated for 3 h using Clevenger. Essential oil (EO) yield was 0.4% (v/w). According to the GC/MS analyses, EO ofT. cilicicumconsisted of monoterpenes [α-pinene (2.95 ± 0.19%), sabinene (2.32 ± 0.11%), and limonene (3.17 ± 0.25)], oxygenated monoterpenes [eucalyptol (5.08 ± 0.32%), camphor (3.53 ± 0.27%), linalool (7.01 ± 0.32%),α-terpineol (3.13 ± 0.23%), and borneol (4.21 ± 0.17%)], and sesquiterpenes [sesquisabinene hydrate (6.88 ± 0.41%), nerolidol (4.90 ± 0.33%),α-muurolol (4.57%  ± 0.35), spathulanol (2.98 ± 0.12%), juniper camphor (2.68 ± 0.19%), (-)-caryophyllene oxide (2.64 ± 0.19%), 8-hydroxylinalool (2.62 ± 0.15%), andΔ-cadinene (2.48 ± 0.16%)]. In the antimicrobial assay, MIC/MBC values of the EO were the most significant onB. subtilis(0.39/0.78 µL/mL) andB. cereus(0.78/1.56 µL/mL).The most prominent phytotoxic activities of the EO were observed onL. sativa,L. sativum, andP. oleracea. The results of the present study indicated that EO ofT. cilicicumincludes various medicinally and industrially crucial phytoconstituents that could be in use for industrial applications. The finding of this study is the first report on this species from the East Mediterranean region.

scholarly journals Composition of Headspace Volatiles and Essential Oils of Three Thymus Species

2014 ◽  
Vol 9 (11) ◽  
pp. 1934578X1400901
Author(s):  
Gordana Stojanović ◽  
Olga Jovanović ◽  
Goran Petrović ◽  
Violeta Mitić ◽  
Vesna Stankov Jovanović ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oils ◽  
Headspace Volatiles ◽  
Linalyl Acetate ◽  
Total Peak Area ◽  
First Report ◽  
Head Space ◽  
Main Components ◽  
Volatiles Composition

Analysis of head space volatiles (HSV) and hydrodistilled essential oils (EO) of the above-ground parts of Thymus glabrescens Willd., T. praecox Opiz subsp. jankae (Celak.) Jalas (from two localities) and T. pulegoides L. was made by GC-FID and GC-MS. This is the first report on the headspace volatiles composition of T. glabrescens and T. pulegoides. The most abundant compound of T. glabrescens HSV was p-cymene (27.8%) followed by γ-terpinene (18.4%), while thymol (55.4%) and geraniol (10.5%) were the most abundant in the corresponding EO. T. praecox subsp. jankae EO from Serbia was characterized by ( E)-caryophyllene (14.6%) and thymol (10.7%), which is substantially different from that of Bulgarian T. praecox subsp. jankae, which contained α-terpinyl acetate (20.1%) and linalool (17.7%) as its main components. The dominating components of the Serbian and Bulgarian T. praecox subsp. jankae HSV were α-pinene (29.4% and 18.6%, respectively), myrcene (12.1% and 23.2%, respectively), limonene (7.5% and 17.8%, respectively) and β-pinene (11.7% and 7.6%, respectively). Linalyl acetate predominated in T. pulegoides EO and HSV, representing 40.0% and 42.4% (respectively) of the total peak area. The chemical composition of the essential oils of the examined Thymus species could not be attributed to any particular recorded chemotype of T. glabrescens, T praecox and T. pulegoides.

Bergamot Oil: Botany, Production, Pharmacology

Encyclopedia ◽  
2021 ◽  
Vol 1 (1) ◽  
pp. 152-176
Author(s):  
Marco Valussi ◽  
Davide Donelli ◽  
Fabio Firenzuoli ◽  
Michele Antonelli
Keyword(s):  
Essential Oil ◽  
Heterocyclic Compounds ◽  
Linalyl Acetate ◽  
Cold Pressing ◽  
Oxygenated Monoterpenes ◽  
Monoterpene Hydrocarbons ◽  
Mechanical Manipulation ◽  
Bergamot Oil ◽  
Citrus Bergamia

Bergamot essential oil (BEO) is the result of the mechanical manipulation (cold pressing) of the exocarp (flavedo) of the hesperidium of Citruslimon (L.) Osbeck Bergamot Group (synonym Citrus × bergamia Risso & Poit.), resulting in the bursting of the oil cavities embedded in the flavedo and the release of their contents. It is chemically dominated by monoterpene hydrocarbons (i.e., limonene), but with significant percentages of oxygenated monoterpenes (i.e., linalyl acetate) and of non-volatile oxygen heterocyclic compounds (i.e., bergapten).

scholarly journals Essential oil composition of Lavandula angustifolia Mill. cultivated in the mid hills of Uttarakhand, India

2010 ◽  
Vol 75 (3) ◽  
pp. 343-348 ◽  
Author(s):  
Ram Verma ◽  
Laiq Rahman ◽  
Chandan Chanotiya ◽  
Rajesh Verma ◽  
Amit Chauhan ◽  
...  
Keyword(s):  
Essential Oil ◽  
Oil Content ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Capillary Gc ◽  
Fresh Weight ◽  
Linalyl Acetate ◽  
Lavandula Angustifolia ◽  
The Usa

The essential oil content in the inflorescence of lavender (Lavandula angustifolia Mill.) cultivated in the mid hills of Uttarakhand was found to be 2.8 % based on the fresh weight. The oil was analysed by capillary GC and GC- MS. Thirty seven constituents, representing 97.81 % of the oil were identified. The major components of the oil were linalyl acetate (47.56 %), linalool (28.06 %), lavandulyl acetate (4.34 %) and ?-terpineol (3.75 %). The quality of lavender oil produced in India was found to be comparable to that produced in Hungary, France, China, Bulgaria, Russia and the USA.

scholarly journals Composition of essential oils and headspace constituents of Artemisia annua L. and A. scoparia Waldst. et Kit.

2020 ◽  
pp. 61-61
Author(s):  
Jovana Ickovski ◽  
Katarina Stepic ◽  
Gordana Stojanovic
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Artemisia Annua ◽  
The Other ◽  
Static Headspace ◽  
Main Constituent ◽  
Headspace Volatiles ◽  
First Report ◽  
Artemisia Annua L ◽  
Aerial Parts

Headspace volatiles (HS) and hydrodistilled essential oils (EO) of fresh aerial parts of Artemisia annua L. and A. scoparia Waldst. et Kit., were analyzed by GC-MS/FID. Artemisia ketone was found to be the most abundant component among the EO volatiles (55.8 %), as well as among HS (52.1 %) of A. annua. Additionally, in both A. annua samples, EO and HS, ?-pinene (12.7 and 24.2 %, respectively) was found in high percentage. On the other hand, it has been determined that the dominant components of A. scoparia EO and HS were different; in the essential oil capillene (63.8 %) was found as the main constituent, while ?-pinene (26.1 %), (Z)-?-ocimene (23.8 %) and limonene (10.7 %) were the major components among the HS. This is the first report on the composition of HS volatiles of the A. annua and A. scoparia obtained by direct static headspace.

Compositional Variability in Essential Oil from Different Parts of Alpinia speciosa from India

2010 ◽  
Vol 5 (2) ◽  
pp. 1934578X1000500 ◽  
Author(s):  
Rajendra C. Padalia ◽  
Chandan S. Chanotiya ◽  
V. Sundaresan
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Bornyl Acetate ◽  
Quantitative Composition ◽  
Monoterpene Hydrocarbon ◽  
Capillary Gc ◽  
Leaf Oil ◽  
Compositional Variability ◽  
Different Parts

The essential oils from the leaves, flowers and roots of cultivated Alpinia speciosa K. Schum. were examined by capillary GC and GC-MS. Monoterpenoids composed 89.6% of the total identified constituents of the leaf oil, out of which 59.3% were oxygenated, represented mainly by terpinen-4-ol (28.4%) and 1,8-cineole (19.2%). The flower and leaf oils had a uniform qualitative, but different quantitative composition. However, the flowers oil was also dominated by oxygenated monoterpenoids (68.9%) viz., terpinen-4-ol (26.0%), 1,8-cineole (24.4%) and linalool (6.1%), along with the monoterpene hydrocarbon, sabinene (11.3%). On the contrary, the root oil had an entirely different composition and was characterized by endo-fenchyl acetate (40.1%), 1,8-cineole (11.8%), camphene (7.8%), bornyl acetate (6.9%) and borneol (5.8%). Moreover, endo-fenchyl acetate, exo-fenchyl acetate and endo-fenchol were characteristic of only the A. speciosa root oil.

scholarly journals The Essential Oil of Thymus Aureopunctatus (Beck) K. Malý

2009 ◽  
Vol 4 (3) ◽  
pp. 1934578X0900400 ◽  
Author(s):  
Sanja Ćavar ◽  
Milka Maksimović ◽  
Danijela Vidic
Keyword(s):  
Essential Oil ◽  
Bosnia And Herzegovina ◽  
Headspace Analysis ◽  
Phytochemical Analysis ◽  
Main Constituent ◽  
Capillary Gc ◽  
Volatile Composition ◽  
First Report ◽  
Thymus Serpyllum ◽  
Very High

Essential oil of Thymus aureopunctatus (Beck) K. Malý, obtained by hydrodistillation and headspace technique, was subjected to capillary GC-MS analysis, and its volatile composition was compared with essential oil profile of Thymus serpyllum L. and a botanically undetermined thyme species, Thymus spp., all growing wild in the same habitat in Bosnia and Herzegovina. This paper presents the first report on phytochemical analysis of the rare T. aureopunctatus species, and also the first report on headspace analysis of plants belonging to the genus Thymus. One hundred and two volatile constituents were identified. The investigated Thymus species of Bosnian origin clearly belong to the thymol-chemotype with relatively abundant level of this main constituent varying from 30.5% for T. serpyllum, and 34.5% for T. aureopunctatus, to 44.2% for Thymus spp., while their corresponding headspace samples contain very high percentage of p-cymene, thymol biosynthesis precursor, in the range from 29.1% to 68.1%.

scholarly journals Antimicrobial Activity and Volatile Constituents of the Essential Oil of Pulsatilla Albana from Iran

2010 ◽  
Vol 5 (8) ◽  
pp. 1934578X1000500
Author(s):  
Ali Shafaghat
Keyword(s):  
Antimicrobial Activity ◽  
Essential Oil ◽  
Moderate Activity ◽  
Gram Negative Bacteria ◽  
Gram Positive ◽  
Volatile Constituents ◽  
Gram Negative ◽  
Oxygenated Monoterpenes ◽  
Antibacterial Screening ◽  
Monoterpene Hydrocarbons

The essential oil obtained by hydrodistillation of the aerial flowering parts of Pulsatilla albana (Stev.) Bercht. & Presl. was analyzed by GC and GC/MS. Twenty-five compounds representing 97.5% of oil were identified, among them pulegone (39.1%), piperitenone (17.2%), menthone (16.1%), 1, 8-cineole (8.9%) and p-mentha-3,8-diene (4.2%). In this essential oil oxygenated monoterpenes (87.9%) predominated over monoterpene hydrocarbons (8.3%) and sesquiterpenes (1.3%). Nonterpene hydrocarbons were not found among the identified components. Antibacterial screening of the oil showed moderate activity against certain strains of Gram-positive and Gram-negative bacteria.

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