Seasonal Variation of Essential Oil Yield and Composition of<i>Thymus vulgaris</i>L. (Lamiaceae) from South Brazil

Atti-Santos, A. C.; Pansera, Márcia Regina; Paroul, Natália; Atti-Serafini, L.; Moyna, Patrick

doi:10.1080/10412905.2004.9698724

Cited by 44 publications

(27 citation statements)

References 2 publications

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“…It was observed that thymol and p-cymene presented an opposite behavior during all periods: an increase of concentration of thymol corresponded to a decrease of p-cymene and vice versa. These results agree with Hudaib et al (7) and Atti-Santos et al (8). At the initial flowering period, thymol reached its maximum value while p-cymene showed its minimum value.…”

Section: Resultssupporting

confidence: 93%

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Seasonal Variation of Essential Oil Yield and Composition of Thyme (Thymus vulgarisL.) Grown in Castilla—La Mancha (Central Spain)

Arraiza

Andrés

Arrabal

et al. 2009

Journal of Essential Oil Research

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Links between phenology, yield and composition of the essential oil of common thyme, Thymus vulgaris L., grown in Guadalajara (Central Spain) were determined in the different phases of the biological cycle during one year. Data showed an average yield of about 2%. The analysis of the oil components was carried out by GC-FID and GC/MS. The main oil constituents were thymol (36.3-47.5%), p-cymene (13.0-27.8%) and g-terpinene (5.3-16.2%), which is in accord with a thymol chemotype. The highest yield of oil was obtained in the period of full flowering and the highest concentration of thymol in the period of initial flowering.

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Section: Resultssupporting

confidence: 93%

“…It is composed mainly of monoterpene and sesquiterpene hydrocarbons and their oxygen derivates. Seasonal variation of oil of T. vulgaris has also been reported (7,8).…”

Section: Introductionmentioning

confidence: 91%

Seasonal Variation of Essential Oil Yield and Composition of Thyme (Thymus vulgarisL.) Grown in Castilla—La Mancha (Central Spain)

Arraiza

Andrés

Arrabal

et al. 2009

Journal of Essential Oil Research

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“…The key constituents of thyme include essential oils; such as the phenols thymol and carvacrol, glycosides, flavonoids, p-cymene, borneol, linalool, eugenol, alcohols, rosmarinic acid, saponins, tannins and terpenoid. [1,[5][6][7] Thymol and carvacrol have been reported to act as antioxidants, antimicrobial agents, antifungal agents, diuretic, urinary disinfectants, and they have been used in the treatment of respiratory tract diseases, healing wounds, treating gas in the digestive system, and regarded as substances that expel worms from bodies; in other words as antihelmintic. [1,14,15] Thyme is generally recognized as having a safe (GRAS) status when it is used in moderate amounts in foods.…”

Section: Discussionmentioning

confidence: 99%

“…It contains essential oils, such as phenols thymol and carvacrol, glycosides, flavonoids, p-cymene, borneol, linalool, eugenol, alcohols, rosmarinic acid, saponins, tannins and terpenoid. [1,[5][6][7] The American Association of Poison Control Centers (AAPCC) reported 8.466 telephone enquiries including 6.879 children and 967 adults, who were thought to have been poisoned with essential oils (0.32% of all poisonings) in 2007. Of the essential oil exposures, 7.790 (92.01%) were unintentional and 168 (1.98%) were intentional.…”

Section: Introductionmentioning

confidence: 99%

Acute Hepatitis Associated with Thymus Vulgaris Oil Ingestion; Case Report

et al. 2011

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SUMMARYMany plants traditionally used in folkloric medicine can cause poisoning. Typically known as "thyme", "Thymus Vulgaris" continues to be one of the most commonly used folkloric herbs in Turkey. Here, we report a case of toxic hepatitis due to the ingestion of concentrated thyme oil. The patient was reported to have ingested a total of 25 ml of thyme oil which was routinely sold in the local market. The total dose was taken in two consecutive days in different amount. The patient then developed nausea, vomiting and diarrhea, and he was subsequently admitted to the emergency unit, with high transaminase levels. He was placed on observation unit for two days. His elevated aminotransferase levels and symptoms gradually decreased during the observation period. Thyme, which is known to be a nonpoisonous plant, is one of the most commonly used herbs; however, plants similar to thyme are not necessarily as harmless as they seem to be.

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“…In some instances it is difficult to segregate these factors from each other, since many are interdependent and influence one each other. These factors include seasonal and maturity variation, geographical origin, genetic variation, growth stages, part of plant utilized and postharvest drying and storage 15,16,17 .…”

Section: Introductionmentioning

confidence: 99%

Chemical Composition and Antibacterial Activity of Essential Oils From Azorella Spinosa (Apiaceae) Against Wild Phytopathogenic Bacteria

Jara-Bermeo

Peñailillo

San-Martı́n

et al. 2016

J. Chil. Chem. Soc.

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The aim of the present investigation was to appraise variation in the chemical composition and antimicrobial activity against phytopatogenic bacterial of essential oils from Azorella spinosa. Three samples of A. spinosa were collected in different date in the same area. The essential oils were obtained for hydrodestillation using a Clevenger-type apparatus. The chemical composition of essential oils were analysed using Gas chromatography-mass spectrometry showed variation in the yield and composition, the main detected compounds were monoterpenes such as limonene (10.66-12.30%), tricyclene (10.81-16.99%) and sabinene (9.10-11.49%), the most abundant sesquiterpene was γ-gurjenene (5.48-8.47%). The biological activity of essential oils from A. spinosa against wild phytopatogenic microorganisms showed selectivity over Pseudomonas syringae. This is the first report of the essential oil composition of A. spinosa, and confirms that natural products obtained from aromatic plants represent an important source of bioactive molecules that could be used as new alternatives for the treatment of phytopatogenic bacteria infections.

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Seasonal Variation of Essential Oil Yield and Composition ofThymus vulgarisL. (Lamiaceae) from South Brazil

Cited by 44 publications

References 2 publications

Seasonal Variation of Essential Oil Yield and Composition of Thyme (Thymus vulgarisL.) Grown in Castilla—La Mancha (Central Spain)

Seasonal Variation of Essential Oil Yield and Composition of Thyme (Thymus vulgarisL.) Grown in Castilla—La Mancha (Central Spain)

Acute Hepatitis Associated with Thymus Vulgaris Oil Ingestion; Case Report

Chemical Composition and Antibacterial Activity of Essential Oils From Azorella Spinosa (Apiaceae) Against Wild Phytopathogenic Bacteria

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