نتایج جستجو برای: thymol derivatives

تعداد نتایج: 106418  

Journal: :Molecules 2016
Tao Gao Hao Zhou Wei Zhou Liangbin Hu Jian Chen Zhiqi Shi

Thymol is a natural plant-derived compound that has been widely used in pharmaceutical and food preservation applications. However, the antifungal mechanism for thymol against phytopathogens remains unclear. In this study, we identified the antifungal action of thymol against Fusarium graminearum, an economically important phytopathogen showing severe resistance to traditional chemical fungicid...

Journal: :Planta medica 2010
Frank Begrow Jonas Engelbertz Björn Feistel Romanus Lehnfeld Katrin Bauer Eugen J Verspohl

Thyme is a herb with broncholytic und secretomotoric effects. Its activity on beta (2) receptors as a possible mechanism of action was demonstrated. Major components are thymol and carvacrol which are claimed to be responsible for its effects and, therefore, used for standardization in the German pharmacopoeia (0.03 % phenols calculated as thymol). Our aim was to investigate the impact of thymo...

Journal: :Photochem 2022

The conformational space of the natural product thymol (2-isopropyl-5-methylphenol) was investigated using quantum chemical calculations at B3LYP and MP2 levels, which revealed existence four types conformers differing in orientation isopropyl hydroxyl groups. Thymol monomers were isolated noble gas (Ar Xe) matrices (at 15 K) characterized by IR spectroscopy. With support harmonic vibrational c...

Journal: :Molecules 2016
Celia Bustos-Brito Valeria J Vázquez-Heredia Fernando Calzada Lilian Yépez-Mulia José S Calderón Simón Hernández-Ortega Baldomero Esquivel Normand García-Hernández Leovigildo Quijano

Chemical investigation of the leaves from Ageratina glabrata yielded four new thymol derivatives, namely: 10-benzoyloxy-8,9-dehydro-6-hydroxythymol isobutyrate (4), 10-benzoyloxy-8,9-dehydrothymol (5), 10-benzoyloxythymol (6) and 10-benzoyloxy-6,8-dihydroxy-9-isobutyryl-oxythymol (7). In addition, (8S)-10-benzoyloxy-8,9-epoxy-6-hydroxythymol isobutyrate (1), together with other two already know...

Journal: :Molecules 2011
Raquel O S Fontenelle Selene M Morais Erika H S Brito Raimunda S N Brilhante Rossana A Cordeiro Ynayara C Lima Nilce V G P S Brasil André J Monteiro José J C Sidrim Marcos F G Rocha

In recent years there has been an increasing search for new antifungal compounds due to the side effects of conventional antifungal drugs and fungal resistance. The aims of this study were to test in vitro the activity of thymol, eugenol, estragole and anethole and some O-methyl-derivatives (methylthymol and methyleugenol) against Candida spp. and Microsporum canis. The broth microdilution meth...

Journal: :Molecules 2016
Xiefeng Ye Tianxiao Ling Yanfeng Xue Cunfa Xu Wei Zhou Liangbin Hu Jian Chen Zhiqi Shi

Thymol is a famous plant-derived compound that has been widely used in pharmacy due to its antioxidant and antimicrobial properties. However, the modulation of intrinsic plant physiology by thymol remains unclear. It is a significant challenge to confer plant tolerance to Cd (cadmium) stress. In the present study physiological, histochemical, and biochemical methods were applied to investigate ...

Journal: :The Chinese journal of physiology 2017
Jeng-Hsien Yeh Chiang-Ting Chou I-Shu Chen Ti Lu Ko-Long Lin Chia-Cheng Yu Wei-Zhe Liang Hong-Tai Chang Chun-Chi Kuo Chin-Man Ho Wen-Teng Chang Pochuen Shieh Chung-Ren Jan

Thymol is a phenolic compound that affects physiology in different cell models. However, whether thymol affects Ca²⁺ homeostasis in prostate cancer cells is unknown. The action of this compound on cytosolic Ca²⁺ concentrations ([Ca²⁺]i) and viability in PC3 human prostate cancer cells was explored. The results show that thymol at concentrations of 100-1500 μM caused [Ca²⁺]i rises in a concentra...

Journal: :Journal of the science of food and agriculture 2015
David Villanueva Bermejo Ivan Angelov Gonzalo Vicente Roumiana P Stateva Mónica Rodriguez García-Risco Guillermo Reglero Elena Ibañez Tiziana Fornari

BACKGROUND Thymol (2-isopropyl-5-methylphenol) is the main monoterpene phenol found in thyme essential oil. This compound has revealed several biological properties, including antibacterial, anti-inflammatory and antioxidant activities. In this work, a comparison was made between the performance of different green solvents (ethanol, limonene and ethyl lactate), by pressurized liquid extraction ...

Journal: :Journal of agricultural and food chemistry 2013
Branko T Petrujkić Ivana Sedej Ross C Beier Robin C Anderson Roger B Harvey Sharon V R Epps Robert D Stipanovic Nathan A Krueger David J Nisbet

Food-producing animals are reservoirs of Campylobacter, a leading bacterial cause of human foodborne illness. The natural product thymol can reduce the survivability of Campylobacter, but its rapid absorption in the proximal gastrointestinal tract may preclude its use as a feed additive to reduce intestinal colonization of these pathogens. This work examined the ex vivo absorption of thymol and...

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