A critical overview on Thymus daenensis Celak.: phytochemical and pharmacological investigations

Zarshenas, Mohammad M.; Krenn, Liselotte

doi:10.1016/s2095-4964(15)60166-2

Cited by 51 publications

(39 citation statements)

References 25 publications

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“…Antifungal activity of EOs cannot be easily attributed to a specific compound, but the combination of EO constituents is effective in this matter and interaction among different EO constituents plays an important role in the antimicrobial activity. For instance, thymol and carvacrol have synergistic effects (Didry, Dubreuil, & Pinkas, ), like synergism between carvacrol and its biological precursor p‐cymene on Bacillus cereus vegetative cells, that probably, p‐cymene provides an easily transportation of carvacrol into the cell (Ultee, Kets, Alberda, Hoekstra, & Smid, ) or existence of the hydroxyl group in the structures of the phenolic compounds has notable importance, like Thymus daenensis that due to considerable number of oxygenated monoterpenes, in particular thymol and carvacrol , has significant antimicrobial activities (Zarshenas & Krenn, ). Sivropoulou et al pointed out that the bacteriostatic and fungistatic properties of the EO are associated with the high carvacrol content (Sivropoulou et al, ).…”

Section: Discussionmentioning

confidence: 99%

“…Thymus daenensis that due to considerable number of oxygenated monoterpenes, in particular thymol and carvacrol, has significant antimicrobial activities (Zarshenas & Krenn, 2015). Sivropoulou et al pointed out that the bacteriostatic and fungistatic properties of the EO are associated with the high carvacrol content (Sivropoulou et al, 1996).…”

Section: Antifungal Activity In the Un-heat Treated Dooghmentioning

confidence: 99%

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Effects of Thymus daenensis and Satureja hortensis L. essential oils on quality properties of Iranian Doogh

Sasanian

Sari

Mortazavian

2018

Journal of Food Safety

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Antifungal activity of Thymus daenensis and Satureja hortensis essential oils (EOs) (0, 50, 100, and 150 ppm) were evaluated against Aspergillus fumigatus in vitro and in the Food model system (un‐heat and heat‐treated Doogh) during 21 days. In vitro results showed that minimum inhibitory concentration and minimum fungicidal concentration of T. daenensis and S. hortensis oils were 6.25 and 12.5%, respectively. In un‐heat treated samples, both EOs showed a significant inhibitory effects rather than the control group at 25 °C than 4 °C. Treatments containing 100 and 150 ppm of T. daenensis EO on the 21st day and treatment containing 50 ppm of S. hortensis EO on the 15th day had maximum inhibitory effect. No growth was observed in the heat‐treated samples and control group. The findings revealed that both EOs had noticeable antifungal activity and can be considered as a natural preservative in the food industry. Practical applications Doogh is a traditional Iranian dairy‐based drink which is the same as other dairy fermented products prone to fungal contamination. As a result, application of chemical and synthetic preservatives is common to control microbial growth and increase the shelf life. But, due to their harmful side effects, much research has been being conducted to find a suitable substitute like plant EOs, as natural preservatives in the food industry. This study assessed the antifungal activity of T. daenensis and S. hortensis EOs and their potential applications in food model system.

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Section: Discussionmentioning

confidence: 99%

Section: Antifungal Activity In the Un-heat Treated Dooghmentioning

confidence: 99%

Effects of Thymus daenensis and Satureja hortensis L. essential oils on quality properties of Iranian Doogh

Sasanian

Sari

Mortazavian

2018

Journal of Food Safety

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“…These indicate that the chemical constituents of the essential oil extracted from T. fedtschenkoi vary with geographical region. In addition, several factors including harvesting time, environmental settings, drying techniques, and essential oil extraction methods, genetic diversity and the developmental stage (Nouri, Baharvand, Raftari, & Deyhimi, 2005;Zarshenas & Krenn, 2015) can also drive such differences. Due to high concentrations of phenolic components such as carvacrol in the essential oils of the thymus genus and its intimate link to antimicrobial properties (Boskovica et al, 2015;Burt, 2004;Khan et al, in press), we envisioned that the essential oils extracted from all three parts of T. fedtschenkoi should demonstrate appreciable antibacterial properties.…”

Section: Re Sults and Discussionmentioning

confidence: 99%

Antimicrobial activities and chemical constituents of essential oil extracted from stem, leaf, and flower of Thymus fedtschenkoi from Khoy, Iran

Aminkhani

Sharifi

Ranjbar

et al. 2019

J Food Process Preserv

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Thymus species, and in particular Thymus fedtschenkoi, is commonly used as a medicinal herb to treat common colds and respiratory infections as well as a food flavor and preservative in Iran. Using hydrodistillation, we herein extracted the essential oil of aerial parts (i.e., stem, leaf, and flower) of the plant (collected from Khoy) and studied their chemical composition via GC and GC‐MS, along with their corresponding antibacterial properties. We showed that, while there was a substantial difference in the chemical composition of the extract from different segments of plant, they exhibited similar, yet significant antibacterial effects against gram‐positive and gram‐negative bacteria, as indicated by the disk method, minimum bactericidal concentration (MBC) and minimum inhibitory concentration (MIC) tests. This highlights the importance of T. fedtschenkoi plant and its essential oil in traditional medicine to treat various bacterial infections and justify its widespread application as a food flavor and preservative. Practical applications The significance of aromatic plants in the pharmaceutical and food industries propelled the scientific community to systematically investigate the essential oil, extracted from those plants and their biological functions. Thymus fedtschenkoi is one of those aromatic plants and has been well‐known for its biological characteristics including treating common colds and respiratory infections and is also being used as an additive and flavor in some traditional foods and herbal teas in Iran. Herein, we extracted the essential oil from T. fedtschenkoi, studied its chemical composition and antibacterial functions in order to justify its application in pharmaceutical and food industries. The significant antibacterial activities of essential oil extracted from T. fedtschenkoi along with the growing use of this plant by the local people strongly suggest the need for the large‐scale cultivation of this plant in rangelands area.

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“…Zarshenas and Krenn have posted a critical overview of the phytochemical and pharmacological investigations of T. daenensis Celak . And they mainly paid attention to EOs derived from the plant …”

Section: Introductionmentioning

confidence: 99%

“…And they mainly paid attention to EOs derived from the plant. [15] This review systematically evaluates current researches of Thymus genus plants, including traditional uses, chemical constituents, and biological activities. In particular, the review also comprehensively summa-rizes non-volatile secondary metabolites that were not adequately considered in current studies of Thymus genus.…”

Section: Introductionmentioning

confidence: 99%

Traditional Uses, Chemical Constituents and Biological Activities of Plants from the Genus Thymus

Wang

et al. 2019

Chemistry & Biodiversity

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The genus Thymus (Lamiaceae) comprises about 214 species throughout the world, mainly found in North Africa, Europe, and temperate Asia zone. They are traditionally used as food additives and folk medicines. This review comprehensively summarizes information about traditional uses, chemical constituents, and biological activities of this genus and provides recommendations for future investigations. All information was gathered from scientific databases including Google Scholar, Sci‐Finder, Web of Science, ScienceDirect, and CNKI. Volatile oils are the most concerned constituents of this genus. Flavonoids, phenylpropanoids, tannins, organic acids, terpenoids, and phytosterols were also summarized. This genus plants possessed a variety of activities including antimicrobial, antioxidant, anti‐inflammatory, cytotoxic, analgesic, and antidiabetic. In brief, this review will be helpful to provide valuable data for explorations and create more interests towards Thymus genus in the future.

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A critical overview on Thymus daenensis Celak.: phytochemical and pharmacological investigations

Cited by 51 publications

References 25 publications

Effects of Thymus daenensis and Satureja hortensis L. essential oils on quality properties of Iranian Doogh

Effects of Thymus daenensis and Satureja hortensis L. essential oils on quality properties of Iranian Doogh

Antimicrobial activities and chemical constituents of essential oil extracted from stem, leaf, and flower of Thymus fedtschenkoi from Khoy, Iran

Traditional Uses, Chemical Constituents and Biological Activities of Plants from the Genus Thymus

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