نتایج جستجو برای: essential oils

تعداد نتایج: 375278  

ژورنال: Medical Laboratory Journal 2016
Hashemi , Maryam , Hosseini , Masoud , Mohammadi , Ali ,

Background and Objective: Considering the increasing tendency of public towards green consumption and the dangers of artificial additives, this study aimed to assess antibacterial activity of essential oils of Cinnamomum zeylanicum, Mentha piperita L., Zataria multiflora Boiss and Thymus vulgaris against three important pathogenic and spoilage bacteria (Pseudomonas fluorescens, Erwin...

2017
Sonam Chouhan Kanika Sharma Sanjay Guleria

Extensive documentation on the antimicrobial properties of essential oils and their constituents has been carried out by several workers. Although the mechanism of action of a few essential oil components has been elucidated in many pioneering works in the past, detailed knowledge of most of the compounds and their mechanism of action is still lacking. This knowledge is particularly important f...

Background and Objectives: The chemical composition and antimicrobial activity of bitter orange (Citrus aurantium) leaf, ripe and unripe peel essential oils, cultivated in southwest of Iran, were investigated. Materials and Methods: The analysis of chemical composition of hydro-distilled essential oils was carried out by GC-MS. The disc diffusion and broth micro-dilution were used to assay t...

Mansor Esmaeili, Zahra, Mohammadi Motamed, Saeed, Qomi, Mahnaz,

Background: Hydrodistillation is a current method to extract plant essential oils which is time consuming. It has been proposed that use of microwaves instead of direct heat could decrease the time of distillation. In this study, the effect of microwaves on chemical profile and antioxidant activity of Zatariam multiflora and Syzygium aromaticum essential oils in comparison to current hydrodisti...

Journal: :Journal of Clinical Biochemistry and Nutrition 2008
Yoko Ao Kazue Satoh Katsushige Shibano Yukari Kawahito Seiji Shioda

Since we have been exposed to excessive amounts of stressors, aromatherapy for the relaxation has recently become very popular recently. However, there is a problem which responds to light with the essential oil used by aromatherapy. It is generally believed that singlet oxygen is implicated in the pathogenesis of various diseases such as light-induced skin disorders and inflammatory responses....

Journal: :iranian journal of pharmaceutical research 0
taghreed a ibrahim king saud university atef ahmed el-hela al – azhar university hala el-hefnawy cairo university areej m al-taweel king saud university shagufta pervin king saud university

family cupressaceae is the largest coniferous plant family. essential oils of many species belonging to family cupressaceae are known to have several biological activities specially antimicrobial activity. the essential oils from aerial parts of calocedrus decurrens torr., cupressus sempervirens stricta l. and tetraclinis articulata (vahl) mast. were prepared by hydrodistillation. the chemical ...

2014
Shahin Gavanji Elmira Mohammadi Behrouz Larki Azizollah Bakhtari

BACKGROUND Since ancient times, various infectious diseases have been treated using herbal drugs. Today, efforts regarding the discovery of the effectual components of plants possessing antimicrobial properties are advanced. Herbal essential oils are widely used for treatment of various diseases, and they play an important role in health care considerations. METHODS The antibacterial activity...

2016
Mallappa Kumara Swamy Mohd Sayeed Akhtar Uma Rani Sinniah

A wide range of medicinal and aromatic plants (MAPs) have been explored for their essential oils in the past few decades. Essential oils are complex volatile compounds, synthesized naturally in different plant parts during the process of secondary metabolism. Essential oils have great potential in the field of biomedicine as they effectively destroy several bacterial, fungal, and viral pathogen...

Journal: :iranian journal of pharmaceutical research 0
zhengwen yu bioengineering college of chongqing university, chongqing, 400044, p.r.china. life science college of guizhou normal university, guiyang, guizhou, 550001, p.r.china fumei yang drug screening lab, key laboratory of chemistry for natural products of guizhou province and chinese academy of science, 550001, p.r.china qianyun sunc drug screening lab, key laboratory of chemistry for natural products of guizhou province and chinese academy of science, 550001, p.r.china bochu wang bioengineering college of chongqing university, chongqing, 400044, p.r.china zhannan yang zhannan yang guizhou provincial laboratory for mountainous environment (gle), guizhou normal university, guiyang, guizhou 550001, p.r.china. liancai zhu bioengineering college of chongqing university, chongqing, 400044, p.r.china

the chemical composition of the essential oils of flower at the pre-flowering, full-flowering and post-flowering stage of a. annua was analyzed by gc and gc/ms and sixty-two components were identified. the main compounds in the pre-flowering oil were β-myrcene (37.71%), 1, 8-cineole (16.11%) and camphor (14.97%). the full-flowering oil contained predominantly caryophyllene (19.4%), germacrene d...

Journal: :modares journal of medical sciences: pathobiology 2010
tolouollah ghadri seyed latif mousavi gargari seyede maryam sharafi shakiba darvish alipour astaneh mohammad bagher rezaee

objective: profound consumption of medicinal plants products worldwide and public misconception of the products safety puts the urgent need forward as to evaluation of their safe and harmful aspects. in the present study the lavandula angustifolia essential oil was studied with a view to the foregoing criteria. materials and methods: the antimicrobial, antioxidative, hematologic and cytotoxic ...

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