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María J. Manzanos - One of the best experts on this subject based on the ideXlab platform.
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Study of the composition of the different parts of a Spanish Thymus Vulgaris L. plant
Food Chemistry, 1998Co-Authors: María D. Guillén, María J. ManzanosAbstract:Abstract The yield and composition of the dichloromethane extracts of leaves, flowers and stems of Thymus Vulgaris L. growing in northeastern Spain have been studied. The yield obtained from leaves and flowers is much higher than that obtained from stems. This plant has a chemotype different from those previously known for Thymus Vulgaris L. The fraction of the dichloromethane extract from leaves and flowers, studied by gas chromatography/mass spectrometry, shows that these tissues have higher concentrations of terpene hydrocarbons, oxygen terpene derivatives, sesquiterpene hydrocarbons, oxygen sesquiterpene derivatives, saturated aliphatic hydrocarbons and phytosterol derivatives than the stems. However, aldehydes with large number of carbon atoms have been found in higher concentrations in stems than in flowers and leaves. These extracts from different parts of Thymus Vulgaris L. also show the presence of a large number of flavonoids and vitamin E, compounds of great interest in food industry for their antioxidant activity. Leaves and flowers of this plant are of interest as flavourings, as well as being natural antioxidants for the food industry.
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Composition of the extract in dichloromethane of the aerial parts of a Spanish wild growing plant Thymus Vulgaris L.
Flavour and Fragrance Journal, 1998Co-Authors: María D. Guillén, María J. ManzanosAbstract:The yield and composition of the volatile fraction of the dichloromethane extract of the aerial parts of a Spanish wild growing plant, Thymus Vulgaris L., have been studied. The main components are 1,8-cineole and linalool, a chemotype not described before in Thymus Vulgaris L. Oxygenated terpene derivatives constitute 42% of the total components; saturated hydrocarbons of high molecular weight, 25%; oxygenated sesquiterpene derivatives, monoterpene and sesquiterpene hydrocarbons, 4%, 3% and 1.6% respectively. In addition, some fatty acids, aldehydes, phytosterols, flavanones, vitamin E and other compounds have also been detected. © 1998 John Wiley & Sons, Ltd.
María D. Guillén - One of the best experts on this subject based on the ideXlab platform.
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Study of the composition of the different parts of a Spanish Thymus Vulgaris L. plant
Food Chemistry, 1998Co-Authors: María D. Guillén, María J. ManzanosAbstract:Abstract The yield and composition of the dichloromethane extracts of leaves, flowers and stems of Thymus Vulgaris L. growing in northeastern Spain have been studied. The yield obtained from leaves and flowers is much higher than that obtained from stems. This plant has a chemotype different from those previously known for Thymus Vulgaris L. The fraction of the dichloromethane extract from leaves and flowers, studied by gas chromatography/mass spectrometry, shows that these tissues have higher concentrations of terpene hydrocarbons, oxygen terpene derivatives, sesquiterpene hydrocarbons, oxygen sesquiterpene derivatives, saturated aliphatic hydrocarbons and phytosterol derivatives than the stems. However, aldehydes with large number of carbon atoms have been found in higher concentrations in stems than in flowers and leaves. These extracts from different parts of Thymus Vulgaris L. also show the presence of a large number of flavonoids and vitamin E, compounds of great interest in food industry for their antioxidant activity. Leaves and flowers of this plant are of interest as flavourings, as well as being natural antioxidants for the food industry.
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Composition of the extract in dichloromethane of the aerial parts of a Spanish wild growing plant Thymus Vulgaris L.
Flavour and Fragrance Journal, 1998Co-Authors: María D. Guillén, María J. ManzanosAbstract:The yield and composition of the volatile fraction of the dichloromethane extract of the aerial parts of a Spanish wild growing plant, Thymus Vulgaris L., have been studied. The main components are 1,8-cineole and linalool, a chemotype not described before in Thymus Vulgaris L. Oxygenated terpene derivatives constitute 42% of the total components; saturated hydrocarbons of high molecular weight, 25%; oxygenated sesquiterpene derivatives, monoterpene and sesquiterpene hydrocarbons, 4%, 3% and 1.6% respectively. In addition, some fatty acids, aldehydes, phytosterols, flavanones, vitamin E and other compounds have also been detected. © 1998 John Wiley & Sons, Ltd.
Mauro Marotti - One of the best experts on this subject based on the ideXlab platform.
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composition of the essential oil of an italian Thymus Vulgaris l ecotype
Flavour and Fragrance Journal, 1991Co-Authors: Roberta Piccaglia, Mauro MarottiAbstract:The composition of the essential oil from a Thymus Vulgaris L. type growing wild in northern Italy was determined by GC and GC-MS. Forty-four components of the oil were identified, monoterpenes being the most abundant (about 80%). The biogenetic sequence γ-terpinene p-cymene thymol probably defines the chemotype. The effect of environmental conditions over the two consecutive trial years was evaluated with respect to the quali-quantitative composition of the essential oils and some agronomic parameters.
Roberta Piccaglia - One of the best experts on this subject based on the ideXlab platform.
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composition of the essential oil of an italian Thymus Vulgaris l ecotype
Flavour and Fragrance Journal, 1991Co-Authors: Roberta Piccaglia, Mauro MarottiAbstract:The composition of the essential oil from a Thymus Vulgaris L. type growing wild in northern Italy was determined by GC and GC-MS. Forty-four components of the oil were identified, monoterpenes being the most abundant (about 80%). The biogenetic sequence γ-terpinene p-cymene thymol probably defines the chemotype. The effect of environmental conditions over the two consecutive trial years was evaluated with respect to the quali-quantitative composition of the essential oils and some agronomic parameters.
Bahram Ramezanzadeh - One of the best experts on this subject based on the ideXlab platform.
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Detailed theoretical DFT computation/molecular simulation and electrochemical explorations of Thymus Vulgaris leave extract for effective mild-steel corrosion retardation in HCl solution
Journal of Molecular Liquids, 2021Co-Authors: Seyed Mohammad Lashgari, Ghasem Bahlakeh, Bahram RamezanzadehAbstract:Abstract Due to the toxic nature of chromatic and phosphatic-based inhibitors, green/non-hazardous inhibitor synthesis has become an interesting topic for researchers in recent days. In the present work, the Thymus Vulgaris leaves aqueous extract inhibitory was explored by experimental and molecular modeling computations. The Tafel and EIS examinations were conducted aiming at inhibition behavior and effectiveness of Thymus Vulgaris leave extract respectively. Achievements confirmed that 1000 ppm Thymus Vulgaris leaves extract controlled about 95% of acidic solution aggressive attacks via mixed-form of inhibition ability after 24 h steel exposure in 25 °C temperature. Besides, the weight loss measurement results demonstrated that the presence of 1000 ppm of Thymus Vulgaris leaves extract in 1 M HCl caused 95% aggression retardation after 5 h sample exposure at room temperature. The detailed surface analyses were employed for analyzing the surface structure. The field emission scanning electron microscope (FE-SEM) images displayed that the metal substrate was covered with a highly compact smooth protective layer and the atomic force microscope (AFM) roughness computations disclosed that the surface heterogeneity sufficiently decreased after surface protection. After adsorption of Thymus Vulgaris leaves extract phytochemicals, the contact angle calculations confirmed that the surface hydrophobicity index was improved. High compliance of experimental results via Langmuir isotherm confirmed a monolayer of the Thymus Vulgaris leaves extracts controlled the chloride corrosive attacks. Besides, the theoretical computations supported the adsorption of Thymus Vulgaris leaves extract compounds on the metal-based adsorbent.