scholarly journals Salicylic Acid and Melatonin Alleviate the Effects of Heat Stress on Essential Oil Composition and Antioxidant Enzyme Activity in Mentha × Piperita and Mentha Arvensis L.

Antioxidants ◽  
2019 ◽  
Vol 8 (11) ◽  
pp. 547 ◽  
Author(s):  
Haydari ◽  
Maresca ◽  
Rigano ◽  
Taleei ◽  
Shahnejat Bushehri ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Heat Stress ◽  
Essential Oils ◽  
Essential Oil Composition ◽  
Mentha Piperita ◽  
Oil Composition ◽  
Mentha Arvensis ◽  
Physiological Processes ◽  
Glutathione S Transferases ◽  
Antioxidant Enzymatic Activity

The aim of this study was to evaluate changes in the chemical profile of essential oils and antioxidant enzymes activity (catalase CAT, superoxide dismutase SOD, Glutathione S-transferases GST, and Peroxidase POX) in Mentha × piperita L. (Mitcham variety) and Mentha arvensis L. (var. piperascens), in response to heat stress. In addition, we used salicylic acid (SA) and melatonin (M), two brassinosteroids that play an important role in regulating physiological processes, to assess their potential to mitigate heat stress. In both species, the heat stress caused a variation in the composition of the essential oils and in the antioxidant enzymatic activity. Furthermore both Salicylic acid (SA) and melatonin (M) alleviated the effect of heat stress.

Foliar application effects of salicylic acid and jasmonic acid on the essential oil composition of Salvia officinalis

2018 ◽  
Vol 43 (4) ◽  
pp. 417-424 ◽  
Author(s):  
Mehrab Yadegari
Keyword(s):  
Salicylic Acid ◽  
Jasmonic Acid ◽  
Essential Oils ◽  
Foliar Application ◽  
Essential Oil Composition ◽  
Research Field ◽  
Salvia Officinalis ◽  
Oil Composition ◽  
Average Temperature ◽  
And Control

Abstract Aim In this research, the effects of two elicitors [jasmonic acid (JA) and salicylic acid (SA)] on the accumulation of essential oils in the seed cultures of Sage (Salvia officinalis L.) were studied. Materials and methods This research was conducted at the research field of Islamic Azad University, Shahrekord branch located at 50°56/E longitude, 32°18/N latitude during 2015 and 2016. The study area was classified as semi cold with an average temperature of 11.5°C and semi-arid with 329.9 mm of average rainfall. Seeds of sage were planted under field conditions. The following treatments were applied after the plants had four leaves: water, acetone, JA (0.1051, 0.2102, 0.4204, 0.8408 g/L), SA (0.0138, 0.138, 0.276, 0.552 g/L) and control. Results Twenty-seven essential oils were obtained and the most notable were: α-pinene, limonene, β-pinene, camphor, thymol, camphene, thujone-trans, thujone-cis, 1,8-cineole, borneol, borneol acetate, carvacrol, α-humulene, caryophyllene. JA was more effective in stimulating the accumulation of α-pinene, limonene, β-pinene, camphor, thymol, camphene, thujone-trans, thujone-cis, 1,8-cineole, borneol, borneol acetate, carvacrol, α-humulene and caryophyllene. Conclusion JA and SA had increasing effects on essential oils. The best treatments were found to be JA 0.1051 g/L, JA 0.2102 g/L and SA 0.138 g/L.

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.

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 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.

scholarly journals Essential Oil Composition ofPinus peuceGriseb. Needles and Twigs from Two National Parks of Kosovo

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Avni Hajdari ◽  
Behxhet Mustafa ◽  
Dashnor Nebija ◽  
Hyrmete Selimi ◽  
Zeqir Veselaj ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
National Park ◽  
Essential Oil Composition ◽  
Gas Chromatography Mass Spectrometry ◽  
Oil Composition ◽  
Plant Materials ◽  
Geographical Variations

The principal aim of this study was to analyze the chemical composition and qualitative and quantitative variability of essential oils obtained from seven naturally grown populations of thePinus peuceGrisebach, Pinaceae in Kosovo. Plant materials were collected from three populations in the Sharri National Park and from four other populations in the Bjeshkët e Nemuna National Park, in Kosovo. Essential oils were obtained by steam distillation and analyzed by GC-FID (Gas Chromatography-Flame Ionization Detection) and GC-MS (Gas Chromatography-Mass Spectrometry). The results showed that the yield of essential oils (v/wdry weight) varied depending on the origin of population and the plant organs and ranged from 0.7 to 3.3%. In total, 51 compounds were identified. The main compounds wereα-pinene (needles: 21.6–34.9%; twigs: 11.0–24%),β-phellandrene (needles: 4.1–27.7; twigs: 29.0–49.8%), andβ-pinene (needles: 10.0–16.1; twigs: 6.9–20.7%). HCA (Hierarchical Cluster Analysis) and PCA (Principal Component Analyses) were used to assess geographical variations in essential oil composition. Statistical analysis showed that the analyzed populations are grouped in three main clusters which seem to reflect microclimatic conditions on the chemical composition of the essential oils.

scholarly journals Variation of essential oil composition of fruits of Zanthoxylum leprieurii Guill. et Perr (Rutaceae) from different sample locations and during their maturation period

2020 ◽  
Vol 14 (2) ◽  
pp. 626-637
Author(s):  
Yoro Tine ◽  
Alioune Diallo ◽  
William Diatta ◽  
Idrissa Ndoye ◽  
Rokhya Sylla Guèye ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Sickle Cell Anaemia ◽  
Essential Oil Composition ◽  
Maturity Stage ◽  
Oil Composition ◽  
Volatile Composition ◽  
Maturation Period ◽  
Chemical Variability

The fruits of Zanthoxylum leprieurii Guill. & Perr. (Rutaceae) are traditionally used in Africa, particularly in Cameroon, as a spice and in the treatment of sickle cell anaemia. The objective of this study was to investigate the fruit essential oils from different sample locations and during their maturation period by using GC and GC-MS. Except for one sample collected in Aniak which consisted mainly of oxygenated monoterpenes, the volatile composition of Z. leprieurii fruits exhibited relative high amounts of monoterpene hydrocarbons (61.1-90.9%) such as (E)-β-ocimene (13.4-75.2%) and a-pinene (1.1-40.7%). The influence of the maturity stage on the chemical composition of the essential oils has resulted in an increase of oil yield and variations in the content of volatile compounds (a-pinene 13.3-75.6; (E)-β-ocimene 2.9-64.0%). Keywords: Senegal, Zanthoxylum leprieurii fruits, essential oil, chemical variability, stage of maturity and GC-MS.

Effect of harvest date on the yield and quality of the essential oil of peppermint

1993 ◽  
Vol 73 (3) ◽  
pp. 815-824 ◽  
Author(s):  
William A. Court ◽  
Robert Pocs ◽  
Robert C. Roy
Keyword(s):  
Essential Oil ◽  
Plant Biomass ◽  
Essential Oil Composition ◽  
Harvest Date ◽  
Mentha Piperita ◽  
Oil Composition ◽  
Yield And Quality ◽  
Loamy Sand Soil ◽  
Physical And Chemical

A field experiment was conducted from 1989 to 1991 on a Fox loamy sand soil to study the effects of harvest date on selected agronomic, physical and chemical characteristics of peppermint (Mentha piperita L.). Plant biomass and essential oil yields increased throughout the season to a maximum in very late August to early September. Menthol, neomenthol, and menthyl acetate concentrations increased in the essential oil with plant development. The amount of menthone and isomenthone was highest in immature plants. The concentrations of menthofuran and pulegone in the essential oil corresponded to the amount of flower bloom in the peppermint. Changes during the season in the concentrations of piperitone, terpinene-4-ol, α-terpineol, 1,8-cineole, limonene, γ-terpinene, terpinolene, α-terpinene, α-pinene, β-pinene, 3-octanol, β-myrcene, Linalool, sabinene, caryophyllene and Germacrene-D were typically quite small. In general, these preliminary results indicate that peppermint can be grown successfully on the coarse-textured soils of Ontario. Key words: Mentha piperita L., peppermint, essential oil, essential oil composition, harvesting date

scholarly journals Inflorescence and leaves essential oil composition of hydroponically grown Ocimum basilicum L.

2010 ◽  
Vol 75 (10) ◽  
pp. 1361-1368 ◽  
Author(s):  
M.B. Hassanpouraghdam ◽  
G.R. Gohari ◽  
S.J. Tabatabaei ◽  
M.R. Dadpour
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Essential Oil Composition ◽  
Ocimum Basilicum ◽  
Oil Composition ◽  
Food Industries ◽  
Sesquiterpene Hydrocarbons ◽  
Germacrene D ◽  
Potential Applicability ◽  
Hydroponically Grown

In order to characterize the essential oils of leaves and inflorescences, water distilled volatile oils of hydroponically grown Ocimum basilicum L. were analyzed by GC/EI-MS. Fifty components were identified in the inflorescence and leaf essential oils of the basil plants, accounting for 98.8 % and 99.9 % of the total quantified components respectively. Phenylpropanoids (37.7 % for the inflorescence vs. 58.3 % for the leaves) were the predominant class of oil constituents, followed by sesquiterpenes (33.3 % vs. 19.4 %) and monoterpenes (27.7 % vs. 22.1 %). Of the monoterpenoid compounds, oxygenated monoterpenes (25.2 % vs. 18.9 %) were the main subclass. Sesquiterpene hydrocarbons (25 % vs. 15.9 %) possessed the main subclass of sesquiterpenoidal compounds as well. Methyl chavicol, a phenylpropane derivative, (37.2 % vs. 56.7 %) was the principle component of both organ oils, with up to 38 % and 57 % of the total identified components of the inflorescence and leaf essential oils, respectively. Linalool (21.1 % vs. 13.1 %) was the second common major component followed by ?-cadinol (6.1 % vs. 3 %), germacrene D (6.1 % vs. 2.7 %) and 1,8-cineole (2.4 % vs. 3.5 %). There were significant quantitative but very small qualitative differences between the two oils. In total, considering the previous reports, it seems that essential oil composition of hydroponically grown O. basilicum L. had volatile constituents comparable with field grown counterparts, probably with potential applicability in the pharmaceutical and food industries.

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