scholarly journals The effect of hydrodistillation techniques on yield, kinetics, composition and antimicrobial activity of essential oils from flowers of Lavandula officinalis L.

2011 ◽  
Vol 65 (4) ◽  
pp. 455-463 ◽  
Author(s):  
Ljiljana Stanojevic ◽  
Mihajlo Stankovic ◽  
Milorad Cakic ◽  
Vesna Nikolic ◽  
Ljubisa Nikolic ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Essential Oil ◽  
Essential Oils ◽  
Salmonella Enteritidis ◽  
Standard Technique ◽  
Essential Oil Composition ◽  
Chemical Compositions ◽  
Oil Composition ◽  
Modified Technique ◽  
Lavandula Officinalis

The essential oils from flowers of Lavandula officinalis L. (L. officinalis L. = L. angustifolia Mill.) were obtained by two hydrodistillation techniques: standard (technique I) and modified (technique II) Clevenger hydrodistillation. The yield, hydrodistillation kinetics, composition and antimicrobial activity of essential oils were investigated. The higher yield of oil was obtained by hydrodistillation technique II. The new analytical hydrodistillation kinetics model of essential oil from Lavandulae flowers was defined. The essential oil composition was analyzed by gas chromatography-mass spectroscopy (GC-MS). There are differences in chemical compositions of the oils obtained by different techniques. Antimicrobial activity of essential oil obtained by technique I and II against Salmonella enteritidis, Klebsiella pneumoniae, Staphylococcus aureus, Enterococcus faecalis, Candida albicans and Aspergillus niger is the same, while the activity against Escherichia coli and Pseudomonas aeruginosa is slightly different.

Evaluation of antioxidant and antimicrobial activity of Ziziphora ‎clinopodiodes essential oil eluted at different times

2020 ◽  
Vol 16 ◽  
Author(s):  
Mojgan Alizadeh ◽  
Akram Arianfar ◽  
Ameneh Mohammadi
Keyword(s):  
Antimicrobial Activity ◽  
Antioxidant Activity ◽  
Essential Oil ◽  
Essential Oils ◽  
Antioxidant Activities ◽  
Positive Control ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Citronellic Acid ◽  
Antimicrobial And Antioxidant Activity

Objective: Ziziphora clinopodioides is an edible medicinal plant belongs to the Labiatae family that widespread all over Iran. It used as culinary and also in cold and cough treatments in Iran. The aim of present work was to evaluate the effect of different timeframes during the hydrodistillation on essential oil composition, antimicrobial and antioxidant activity. Materials and Methods: The essential oil of Z. clinopodiodes was extracted via hydrodistillation with Clevenger apparatus. The fractions of essential oil were captured at 6 times from the beginning of the distillation: (10, 20, 60, 120, 180 and 240 min). The fractions of essential oil were analyzed by GC/MS and their antibacterial, antifungal and antioxidant activities were studied by Disk - well diffusion and DPPH methods respectively. Results: Six distillation times and whole essential oil were captured during the hydrodistillation. Essential oil yield dropped off significantly during distillation progressed (1.0% for 10 min and 0.025 for 240 min). 1,8 Cineol, Isomenthone, Pulegone, Piperitenone and Citronellic acid were major compounds in fractions and they were affected by distillation times. Pulegone was major compound in all of essential oils. In antioxidant activity assay, whole essential oil was stronger than was stronger than positive control and fractions of essential oil, because of higher levels of Isomenthone, Piperitenone and Citronellic acid. Strongest antimicrobial activity against S. aureus, E. coli and C. albicans was observed from 10 min fraction. Conclusion: Our results indicated that distillation time can create essential oils with specific properties and we can achieve to more efficient essential oil in short times.

scholarly journals Chemical characterization of Lavandula dentata L. essential oils grown in Uberaba-MG

2019 ◽  
Vol 49 (8) ◽  
Author(s):  
Rhéltheer de Paula Martins ◽  
Roseli Aparecida da Silva Gomes ◽  
Ana Claudia Granato Malpass ◽  
Mônica Hitomi Okura
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Chemical Characterization ◽  
Minas Gerais ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Varied Chemical ◽  
Lavandula Officinalis ◽  
Promising Perspective

ABSTRACT: The essential oils of the different parts of Lavandula dentata L. (inflorescences and aerial part without inflorescences) collected in the city of Uberaba (minas Gerais State)were obtained by hydro distillation, and their chemical composition was determined by gas chromatography coupled to mass spectrometry and compared to the chemical composition of essential oil of Lavandula hybrida and Lavandula officinalis. It was observed that the essential oils of the studied species have varied chemical composition and are composed mainly of monoterpenes. The essential oils of L. hybrida and L. officinalis showed a higher concentration of linalool and linaline acetate, while L. dentata L. presented higher concentration of fenchone, eucalyptol and camphor. Results indicate that the essential oil composition of L. dentata L. grown in Uberaba is similar to those produced in Curitiba - PR, providing a promising perspective for the cultivation and extraction of essential oils of this species in Minas Gerais.

scholarly journals Cedrus libani ve Pinus nigra subsp. pallasiana’nın Uçucu Yağlarının Kimyasal Bileşimi, Antimikrobiyal Aktivitesi ve Flavonoid İçeriklerinin Belirlenmesi

2020 ◽  
Vol 8 (8) ◽  
pp. 1747-1754
Author(s):  
Ayşe Nur Demirci ◽  
Nazan Çömlekçioğlu ◽  
Ashabil Aygan
Keyword(s):  
Antimicrobial Activity ◽  
Essential Oil ◽  
Essential Oils ◽  
Pinus Nigra ◽  
Essential Oil Composition ◽  
Diffusion Method ◽  
Oil Composition ◽  
Disc Diffusion Method ◽  
Cedrus Libani ◽  
Germacrene D

Essential oil composition, antimicrobial activity and flavonoid contents of leaf-fruits of Cedrus libani and Pinus nigra subsp. pallasiana were determined with GC-MS, disc diffusion method and HPLC in three different period. When the essential oil composition of leaf and fruits of P. nigra ssp pallasiana collected in April, July and September, major components were α-pinene, β-pinene, limonene, β-caryophyllene ve germacrene-D. On the other hand, additionally to these contents, myrcene and α–terpineol were also detected in C. libani. According to HPLC analysis, rutin, quercetin, kaempferol, naringin and resveratrol flavonoids were detected in different proportions. While rutin (154.33 µg g-) and resveratrol (20.02 µg g-) has the highest ratio in C. libani, quercetin (9.65 µg g-) and naringin (9.31 µg g-) were detected in P. nigra subsp. pallasiana along with rutin (39.66 µg g-). According to the antimicrobial activity results the essential oils of C. libani obtained in April has produced higher activity than that of July and September. On the contrary, the essential oils from P. nigra subsp. pallasina have produced the best antimicrobial activity on September compared to April and July. As a result, C. libani and P. nigra subsp. pallasiana essential oils have a composition showing antimicrobial activity and their harvesting season should be determined for the best and effective content.

scholarly journals Short Communication: Infraspecific variations in essential oil compositions of Nepeta fissa from Iran

2017 ◽  
Vol 9 (3) ◽  
pp. 318-321 ◽  
Author(s):  
SEYED MEHDI TALEBI ◽  
MAJID GHORBANI NOHOOJI ◽  
MAHBOOBEH YARMOHAMMADI
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Environmental Conditions ◽  
Short Communication ◽  
Ecological Factors ◽  
Quality Criterion ◽  
Essential Oil Composition ◽  
Chemical Compositions ◽  
Oil Composition ◽  
Two Populations

Talebi SM, Nohooji MG,Yarmohammadi M. 2017. Short Communication: Infraspecific variations in essential oil compositions of Nepeta fissa from Iran. Nusantara Bioscience 9: 318-321. Nepeta fissa C.A. Mey. is a member of Mint family (Lamiaceae) and distributed naturally in different regions of Iran. The aim of this investigation was to provide more information about the influence of environmental conditions on the essential oil composition of two populations, Polor and Dizin, of this species. The dry plant samples were submitted to hydrodistillation for 2.5 h, using a Clevenger-type apparatus. The highest amount of essential oil yields (0.2%) were obtained for Dizin population. Forty-nine compounds, representing 85.9 to 97.80% of the total essential oils, were separated and identified. In Dizin and Polor populations, the essential oils were characterized by the very high percentage of oxygenated monoterpenes (79.1%), oxygenated diterpenes (20.01%) that constituted the predominant classes, respectively. From the analyzed populations, the major compounds in Dizin population were 1, 8-Cineole, 4 a-α, 7-α, 7 a-α-Nepetalactone and 2E, 4E-nonadienal. While, phytol, caryophyllene oxide, E-caryophyllene, and thymol were the core compounds of essential in Polor population. The obtained results showed that environmental conditions are the important factors influencing the yield and also the chemical compositions of essential oils in N. fissa. Knowledge of the essential oil chemical composition in relation to ecological factors is a most prominent quality criterion for its marketing and contributes to its valorization as a functional ingredient in food industry.

scholarly journals Essential Oil Composition, Antioxidant, Anticholinesterase and Anti-tyrosinase Activities of Two Turkish Plant Species: Ferula elaeochytris and Sideritis stricta

2018 ◽  
Vol 13 (1) ◽  
pp. 1934578X1801300 ◽  
Author(s):  
Ebru Deveci ◽  
Gülsen Tel-Çayan ◽  
Mehmet Emin Duru
Keyword(s):  
Antioxidant Activity ◽  
Essential Oil ◽  
Essential Oils ◽  
Radical Scavenging ◽  
Cation Radical ◽  
Essential Oil Composition ◽  
Chemical Compositions ◽  
Oil Composition ◽  
Metal Chelating ◽  
Β Carotene

The aim of the present study is to characterize chemical compositions and antioxidant, anticholinesterase and anti-tyrosinase activities of Ferula elaeochytris and Sideritis stricta essential oils. The hydrodistilled essential oils were analyzed by GC/FID and GC/MS. A total of thirty-three and twenty-seven compounds representing 99.6 % and 99.4 % were identified in F. elaeochytris and S. stricta, respectively. The main compounds of essential oil of F. elaeochytris were β-cubebene (21.3 %), caryophyllene oxide (17.5 %) and β-caryophyllene (14.9 %), while the major compounds of S. stricta essential oil were δ-cadinene (18.3 %), cubenol (17.6 %) and β-caryophyllene (14.4 %). The antioxidant activity was tested by β-carotene-linoleic acid, DPPH free radical scavenging, ABTS cation radical scavenging, CUPRAC and metal chelating assays. The essential oil of F. elaeochytris showed the highest antioxidant activity in all assays. Also, the anticholinesterase and anti-tyrosinase activities of essential oils were performed against acetylcholinesterase (AChE), butyrylcholinesterase (BChE) and tyrosinase enzymes. F. elaeochytris essential oil indicated the highest anticholinesterase and anti-tyrosinase activities as well. This is the first report describing antioxidant, anticholinesterase and anti-tyrosinase activities of essential oils of F. elaeochytris and S. stricta.

scholarly journals Comparison of Antibacterial Activity of Natural and Hydroformylated Essential Oil of Thymus capitatus Growing Wild in North Sardinia with Commercial Thymus Essential Oils

2010 ◽  
Vol 5 (12) ◽  
pp. 1934578X1000501 ◽  
Author(s):  
Marianna Usai ◽  
Marzia Foddai ◽  
Barbara Sechi ◽  
Claudia Juliano ◽  
Mauro Marchetti
Keyword(s):  
Antimicrobial Activity ◽  
Antibacterial Activity ◽  
Essential Oil ◽  
Essential Oils ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Thymus Capitatus ◽  
Terpenoid Aldehydes

Thymus capitatus growing wild in Sardinia showed different essential oil composition if grown surrounding Cagliari than in north Sardinia. Here we verify the composition and antimicrobial activity of the oil to make it suitable for the cosmetic and confectionery industries. With the aim of improving the scent and the antimicrobical activity of T. capitatus essential oil, a hydroformylation reaction was carried out to transform the unsaturated components of the oil into the corresponding aldehydes. The essential oil of T. capitatus exhibited a significant antibacterial activity (MIC 0.125-0.5 mg/mL), and was also found effective on C. albicans (MIC 0.125 mg/mL). After hydroformylation, several new irregular terpenoid aldehydes were detected. The perfume of the new terpenic-like aldehydes is very agreeable and, therefore, the acceptability of the aroma is remarkably improved, but the antimicrobial activity was not increased.

Essential Oil Composition and Antimicrobial Activity of Diplotaenia damavandica

2005 ◽  
Vol 60 (11-12) ◽  
pp. 821-825 ◽  
Author(s):  
Fereshteh Eftekhar ◽  
Morteza Yousefzadi ◽  
Dina Azizian ◽  
Ali Sonboli ◽  
Peyman Salehi
Keyword(s):  
Escherichia Coli ◽  
Antimicrobial Activity ◽  
Essential Oil ◽  
Essential Oils ◽  
Staphylococcus Epidermidis ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Endemic Plant ◽  
Main Components ◽  
Disk Susceptibility

Antimicrobial activity of the essential oils obtained from leaves, root and the seeds of Diplotaenia damavandica Mozaffarian, Hedge & Lamond, an endemic plant to Iran, was determined against 10 microorganisms using the disk susceptibility test as well as measuring minimum inhibitory concentrations. The results showed that all three oils had antibacterial activity against Bacillus subtilis, Staphylococcus aureus, Staphylococcus epidermidis and Escherichia coli. The essential oil from the leaves had the highest antimicrobial activity against all test microorganisms including the fungal strains. The essential oils compositions were analyzed and determined by GC and GC-MS. The oils analyses resulted in the identification of 16, 17 and 20 compounds representing 94.2%, 96.4% and 95.1% of the total oils, respectively. The main components of the leaf essential oils were (Z)-β-ocimene (21.6%), α-phellandrene (21.3%) and terpinolene (20%). Dill apiol (30.1%) and γ-terpinene (16.2%) were the main components of the root and seed essential oils, respectively.

Review of the Essential Oil Composition of Iranian Endemic and Native Taxa of Apiaceae (Umbelliferae)

2020 ◽  
Vol 24 (9) ◽  
pp. 909-1009
Author(s):  
Maryam Akaberi ◽  
Zahra Tayarani-Najaran ◽  
Iraj Mehregan ◽  
Javad Asili ◽  
Amirhossein Sahebkar ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Essential Oil Composition ◽  
Present Review ◽  
Aromatic Plants ◽  
Oil Composition

One of the most important families of Iranian flora is Apiaceae (Umbelliferae). Most of the species of this family are aromatic plants and rich in essential oils with diverse structures. In the present review, the essential oil composition of 63 genera comprising 141 Apiaceae (66.4% native 33.6% endemic) is summarized.

scholarly journals Chemical Compositions, Mosquito Larvicidal and Antimicrobial Activities of Essential Oils from Five Species of Cinnamomum Growing Wild in North Central Vietnam

Molecules ◽  
2020 ◽  
Vol 25 (6) ◽  
pp. 1303 ◽  
Author(s):  
Do N. Dai ◽  
Nguyen T. Chung ◽  
Le T. Huong ◽  
Nguyen H. Hung ◽  
Dao T.M. Chau ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Essential Oil ◽  
Essential Oils ◽  
Larvicidal Activity ◽  
Antimicrobial Agents ◽  
Chemical Compositions ◽  
North Central ◽  
Mosquito Larvicidal Activity ◽  
Central Vietnam ◽  
Leaf Essential Oil

Members of the genus Cinnamomum (Lauraceae) have aromatic volatiles in their leaves and bark and some species are commercially important herbs and spices. In this work, the essential oils from five species of Cinnamomum (C. damhaensis, C. longipetiolatum, C. ovatum, C. polyadelphum and C. tonkinense) growing wild in north central Vietnam were obtained by hydrodistillation, analyzed by gas chromatography and screened for antimicrobial and mosquito larvicidal activity. The leaf essential oil of C. tonkinense, rich in β-phellandrene (23.1%) and linalool (32.2%), showed excellent antimicrobial activity (MIC of 32 μg/mL against Enterococcus faecalis and Candida albicans) and larvicidal activity (24 h LC50 of 17.4 μg/mL on Aedes aegypti and 14.1 μg/mL against Culex quinquefasciatus). Cinnamomum polyadelphum leaf essential oil also showed notable antimicrobial activity against Gram-positive bacteria and mosquito larvicidal activity, attributable to relatively high concentrations of neral (11.7%) and geranial (16.6%). Thus, members of the genus Cinnamomum from Vietnam have shown promise as antimicrobial agents and as potential vector control agents for mosquitoes.

scholarly journals Compositional Analysis and Aroma Evaluation of Feijoa Essential Oils from New Zealand Grown Cultivars

Molecules ◽  
2019 ◽  
Vol 24 (11) ◽  
pp. 2053 ◽  
Author(s):  
Yaoyao Peng ◽  
Karen Suzanne Bishop ◽  
Siew Young Quek
Keyword(s):  
New Zealand ◽  
Essential Oil ◽  
Essential Oils ◽  
Extraction Method ◽  
Compositional Analysis ◽  
Extraction Methods ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Active Compounds ◽  
Initial Comparison

Feijoa is an aromatic fruit and the essential oil from feijoa peel could be a valuable by-product in the juicing industry. An initial comparison of the essential oil extraction methods, steam-distillation and hydro-distillation, was conducted. The volatile compounds in the essential oils from four feijoa cultivars were identified and semi-quantified by GC-MS and the aroma active compounds in each essential oil were characterized using SPME-GC-O-MS. Hydro-distillation, with a material to water ratio of 1:4 and an extraction time of 90 min, was the optimized extraction method for feijoa essential oil. The Wiki Tu cultivar produced the highest essential oil yield among the four selected cultivars. A total of 160 compounds were detected, among which 90 compounds were reported for the first time in feijoa essential oils. Terpenes and esters were dominant compounds in feijoa essential oil composition and were also major contributors to feijoa essential oil aroma. Key aroma active compounds in feijoa essential oils were α-terpineol, ethyl benzoate, (Z)-3-hexenyl hexanoate, linalool, (E)-geraniol, 2-undecanone, 3-octanone, α-cubebene, and germacrene D. This is the first report on the optimization of the extraction method and the establishment of the aroma profile of feijoa essential oils, with a comparison of four New Zealand grown cultivars.

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