نتایج جستجو برای: plant essential oils

تعداد نتایج: 748860  

D Omar , M Khani , R Muhamad Awang ,

 Background: The rice weevil, Sitophilus oryzae and rice moth, Corcyra cephalonica are major and cosmopolitan insect. Adults of S. oryzae (male and female) and both larvae are insatiable feeders on a great variety of grains. Objective: This study was conducted to estimate the insecticidal effect of essential oils from peppermint, Mentha piperita L. and black pepper, Piper nigrum L. ag...

2012
Morten Hyldgaard Tina Mygind Rikke Louise Meyer

Essential oils are aromatic and volatile liquids extracted from plants. The chemicals in essential oils are secondary metabolites, which play an important role in plant defense as they often possess antimicrobial properties. The interest in essential oils and their application in food preservation has been amplified in recent years by an increasingly negative consumer perception of synthetic pr...

Journal: :modares journal of medical sciences: pathobiology 2011
farnoosh haghighi shahla roudbar mohammadi neda soleimani morteza sattari

objective: nowadays notable increase in acquired resistance of candida species to antifungal drugs and necessity of using agents with antifungal properties is unavoidable. in some plants due to presence of components such as polyphenols have antimicrobial properties. in this study antifungal effects of essential oils of thymus vulgaris, petroselinum crispum, cuminum cyminum and bunium persicum ...

Journal: :applied food biotechnology 0
s.f. mazhar department of microbiology, azad islamic university, north tehran branch, tehran, iran. f. aliakbari department of medical biotechnology, semnan university of medical sciences, semnan, iran. r. karami-osboo department of industrial and environmental biotechnology, national institute of genetic engineering and biotechnology, tehran, iran. d. morshedi medicinal and natural products chemistry research center, shiraz university of medical sciences, shiraz, iran. p. shariati department of cellular and molecular biology, faculty of biological sciences, azarbaijan shahid madani university, tabriz, iran. d. farajzadeh department of genetic, biotechnology research center, research & development complex, tabriz university of medical sciences, tabriz, iran.

plant essential oils are natural products extracted from plants and because of their antimicrobial properties can be used as natural additives in foods. they are also useful for decontamination of food-borne pathogens and can be a safe additive in foods. the antimicrobial activities of essential oils belonging to saturiea hortensis, thymus vulgaris, mentha polegium, cuminum cyminum, lavandula o...

Journal: :journal of food biosciences and technology 0

abstract: essential oils are commonly used to treat minor health problems. in this study the chemical compositions of lavandula officinalis and thymus vulgaris were determined by gas chromatography and mass spectrometry. gc/ms analysis of t. vulgaris resulted in thymol as the major oil component where as methyl sulfony exhibited as the most abundant constituent of l. officinalis. the antibacter...

Journal: Journal of Herbal Drugs 2012
Abdollah Ghasemi Pirbalouti, Behzad Hamedi Maryam Mirlohi Mohammad Hojatolelsami Shohreh Dadfar

Background & Aim: Secondary metabolites with bioactive and functional properties in essence of aromatic plants can be useful for improvement of quality and persistence of food as natural preservative.  The aim of this study was to evaluate the in vitro antibacterial of essential oils of some of the medicinal plants collected from Chaharmahal va Bakhtiari Province, Iran. Experimental: ...

Zataria multiflora is one of the valuable medicinal plants belonging to the Lamiaceae family. The aromatic aerial parts of this species are traditionally used by endemic folks to flavor some native foods, also for numerous therapeutic functions. In the present study, different plant organs (leaf, flower, stalk and whole aerial organ) were collected from Fanuj region of Sistan & Balouchestan pro...

Journal: :Journal of vector borne diseases 2017
Norashiqin Misni Zurainee Mohamed Nor Rohani Ahmad

BACKGROUND & OBJECTIVES Many essential oils have been reported as natural sources of insect repellents; however, due to high volatility, they present low repellent effect. Formulation technique by using microencapsulation enables to control the volatility of essential oil and thereby extends the duration of repellency. In this study, the effectiveness of microencapsulated essential oils of Alpi...

2017
Lizzeth Torres Janne Rojas Maritza Rondón Antonio Morales Elsa Nieves

BACKGROUND Insects are mostly pathogens transmitters, thus the necessity of finding effective bioinsecticides to combat them. In the present investigation, the insecticide activity of Ageratina jahnii and Ageratina pichinchensis (Asteraceae) essential oils, methanol, and aqueous extracts was evaluated against Lutzomyia migonei (Diptera: Psychodidae) females, Leishmania transmitters, a wide dist...

2013
Romana Chovanová Mária Mikulášová Štefánia Vaverková

The crude extracts of plants from Asteraceae and Lamiaceae family and essential oils from Salvia officinalis and Salvia sclarea were studied for their antibacterial as well as antibiotic resistance modifying activity. Using disc diffusion and broth microdilution assays we determined higher antibacterial effect of three Salvia spp. and by evaluating the leakage of 260 nm absorbing material we de...

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