Diurnal Variation Effects in Essential Oils of Wild Thyme (<i>Thymbra spicata</i>var.<i>spicata</i>L.) Under Cultivation Conditions

Tonçer, Özlem; Karaman, Şengül; Dıraz, Emel; Sogut, Tahsin; Kızıl, Süleyman

doi:10.1080/0972060x.2016.1252694

Cited by 8 publications

(5 citation statements)

References 18 publications

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“…The amount of cis-linalool oxides (furanoid and pyranoid), trans-linalool oxide (pyranoid), and p-vinyl guaiacol were higher in the morning than JMAPS 42(3-4) 2020 Singh et al, a Retention Index determined on BP-5 gas chromatography column (30 m × 0.25 mm) using n-alkanes; b retention index from literature; c mean of two samples; t: trace (<0.05%). the evening times in the aromatic plants (Toncer et al, 2016;Karik et al, 2019). It is reported that the decrease of essential oil content of flowers had a relationship with the increase in atmospheric temperature.…”

Section: Resultsmentioning

confidence: 98%

Chemical composition and antibacterial activity of floral volatile oil of Alstonia scholaris (L.) R. Br. from India

SINGH,

YADAV

et al. 2020

JMAPS

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Alstonia scholaris (L.) R. Br, commonly known as saptaparna is an evergreen tropical tree of medicinal value. In this study, the floral volatile oil composition and antibacterial activity of A. scholaris collected in the morning and evening times were investigated. A total of thirty-six constituents, forming 81.1-83.7 % of total composition were identified. The oil was characterised by the presence of a higher amount of oxygenated monoterpenes (60.3-66.7 %), followed by benzenoids (9.2-9.9 %). Major components of the oil were linalool (13.6-14.3%), cis-linalool oxide (furanoid) (7.3-12.2 %), trans-linalool oxide (furanoid) (7.0-7.5 %), cis-linalool oxide (pyranoid) (3.3-7.2 %), trans-linalool oxide (pyranoid) (3.8-4.7 %), terpinen-4-ol (7.9-10.6 %), and α-terpineol (6.3-6.6 %). The oil showed moderate to good activity against Salmonella typhimurium (MTCC 98), while it showed moderate activity against Escherichia coli (MTCC 739). It can be concluded that the collection time influenced the yield and chemical composition of A. scholaris floral volatiles.

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Section: Resultsmentioning

confidence: 98%

Chemical composition and antibacterial activity of floral volatile oil of Alstonia scholaris (L.) R. Br. from India

SINGH,

YADAV

et al. 2020

JMAPS

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“…Similar results were obtained in Italy (Martino et al, 2009), where 3 chemotypes of plants were identified: with a predominance of carvacrol and thymol; thymol and α-terpineol; linalyl acetate and linalool. In Turkey, of the 62 constituent elements of essential oil, caryophyllene and spatulenol were the main ones (Şahin et al, 2004), other researchers point to carvacrol as the main component (Başer et al, 1997;Toncer et al, 2010), trans-sabine hydrate is the main component of plants from Jordan (Al-Kalaldeh et al, 2010) and Argentina (Asensio et al, 2015). In O. vulgare L. from Lithuania, the main component is sabinene (Radušienė et al, 2005), α-terpineol -in plants from Israel (Danin et al, 1997) and Ukraine (Kryvtsova et al, 2020), γterpinene -in plants from India (Chishti et al, 2016), and E-citronellol and citronellol acetate -in plants from China and Pakistan (Gong et al, 2014).…”

Section: Chemical Composition Of the Essential Oilmentioning

confidence: 99%

Сultivation experiment of Origanum vulgare L. in Northern Kazakhstan using nitrogen fertilizer

Кабанова

SHAKHMATOV

BORTSOV

et al. 2023

Not Bot Horti Agrobo

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The purpose of the research is to determine the effect of ammonium nitrate fertilizer on the growth and yield of Origanum vulgare L. essential oil grown in Northern Kazakhstan. One-factor analysis proved that the introduction of ammonium nitrate positively affected the growth and yield of O. vulgare L., the yield of essential oil and the content of its individual components. Plant height increased by 19.3%, bush size – by 17.4%, yield – by 11.8%. Essential oil output of O. vulgare L. at the experimental site, compared to the control site, increased by 20% and the yield of extraction reached 0.60% and 0.48%, respectively. The largest number of components was related to monoterpenes (52.57% in the experimental section, -50.10% in the control section), the most common were γ-Terpinene, β-Sabinene, Carvacrol and trans-β-Ocimene. Sesquiterpene content in the experimental sample was 37.19%, compared to 38.5250% in the control sample, in which Germacrene D and Caryophyllene were the most common components. Cluster analysis showed that the essential oil composition of O. vulgare L. from Kazakhstan is similar to the composition of the essential oil of plants from Moldova, Poland, Turkey (Anatolia), Latvia and Russia. Germacrene D, Carvacrol and β-Sabinene were the binding components of plants from Kazakhstan and Moldova. The similarity between plants from Kazakhstan and other countries in the same cluster was due to the Germacrene D content (cluster’s average value was 10.1%) and the content of Spathulenol (4.9%).

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“…The observed differences in volatile oil profile of investigated species confirm the influence of various factors (harvest season, collection site, environmental factors, preparation and extraction method and growth process). [22][23] Further, the reason for the difference between Thymus genotypes in terms of essential oil ratio and essential oil components can attributed to ecological conditions, [24] harvest times, [25] ripening stages, [26] different plant parts [27] and species and genetic differences. [28][29] In our case, we can state that ecological conditions and the potential genetic difference between investigated genotypes has led to the obtained variation.…”

Section: Volatile Oil Compositionmentioning

confidence: 99%

Volatile Oil Yield and Composition, Total Phenolic Content, Antioxidant Activity and Secondary Metabolite Content of Collected Thymus praecox Species in Rize

Yurteri

2023

Chemistry & Biodiversity

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In this study, the volatile oil yield (Clevenger), volatile oil (VO) composition (Gas Chromatography), phenolic contents (UV-VIS Spectrophotometer), antioxidant activities (UV-VIS Spectrophotometer) and secondary metabolite content (High Pressure Liquid Chromatography) of 11 Thymus praecox subspecies were evaluated. The most detected chemical class were oxygenated monoterpenes (55.18-86.1 %) in investigated samples.In the present study rosmarinic acid, isoquercitrin, gallocatechin and thymol could be detected in high amounts. The min. and max. content values of Flora/Field Samples were 1543.241 and 890.3-1425.3 for rosmarinic acid, 139. 44-287.894 and 129.9-312.2 for thymol, 38.619-121.424 and 26.3-112.9 for gallocatechin as mg/g DW. Principal Component Analysis was used to differentiate Thymus praecox species regarding volatile oil composition and secondary metabolite content. The results demonstrated that T. praecox collected from the Rize flora and cultivated afterwards showed variability based on investigated characteristics. Finally, the Thymus praecox samples displaying high bioactive compounds present useful information for further investigations and applications.

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Diurnal Variation Effects in Essential Oils of Wild Thyme (Thymbra spicatavar.spicataL.) Under Cultivation Conditions

Cited by 8 publications

References 18 publications

Chemical composition and antibacterial activity of floral volatile oil of Alstonia scholaris (L.) R. Br. from India

Chemical composition and antibacterial activity of floral volatile oil of Alstonia scholaris (L.) R. Br. from India

Сultivation experiment of Origanum vulgare L. in Northern Kazakhstan using nitrogen fertilizer

Volatile Oil Yield and Composition, Total Phenolic Content, Antioxidant Activity and Secondary Metabolite Content of Collected Thymus praecox Species in Rize

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