نتایج جستجو برای: aromatic plant
تعداد نتایج: 434528 فیلتر نتایج به سال:
in this project, some new polyaspartimides, (pas)s, have been synthesized form michael addition reaction between new synthetic bismaleimide (bmi) and some aromatic diamines. a characteristic property of this polyaspartimides is a pendent carboxylic group, which introduced to these polymers from new bismaleimide. bismaleimides (bmi) is one of the interesting compounds, which can be self-polymeri...
Aim of the Study: The study was aimed to assess the antioxidant properties of four plants native EO in comparison with synthetic antioxidants during storage of ghee as a food model. Materials and Methods: The essential oils (EOs) were prepared and analyzed to total phenol content, DPPH, reducing power assay and also their effect on the oxidative stability of ghee during the accelerated storage...
Background & Aim: Ziziphora clinopodioides Lam (Kakuty-e-Kohi) is an aromatic and medicinal plant belonging to the family Labiaceae. The essential from this species contains pulegune that having effects such as sedative, stomach tonic, to treat colds, depression, diarrhea, cough, migraine, fever, and antiseptic. This study aimed to identify the chemical composition of essential oil <em...
Phytoconstituents are chemical compounds that occur naturally in plants. Some are responsible for colour and other organoleptic properties. The term is generally refer to biologically significant chemicals, but not established as essential nutrients. Some Phytoconstituents with physiological properties may be elements rather than complex organic molecules. An assortment of different Phytoconsti...
Salvia reuterana Bioss. is an aromatic perennial plant traditionally used for its anxiolytic and sedative properties. In the present study, various fractions and essential oil of S. reuterana aerial parts were investigated to find its free radical scavenging principles. Hydroalcoholic fraction with IC50 value of 112.6 ±3.2 μg ml-1 in DPPH assay demonstrated the highest free radical scavenging a...
in this study, anti alternaria solani effects of essential oils of 11 medicinal and aromatic plant species belonging to four families collected from the west of iran were investigated based on agar dilution method with five replications at concentration of 1.0 µl/ml. the results showed that the highest inhibitory effect belonged to oliveria decumbens, cinnamomum zeylanicum, carum copticum and t...
in this thesis, a better reaction conditions for the synthesis of spirobarbiturates catalyzed by task-specific ionic liquid (2-hydroxy-n-(2-hydroxyethyl)-n,n-dimethylethanaminium formate), calcium hypochlorite ca(ocl)2 or n-bromosuccinimide (nbs) in the presence of water at room temperature by ultrasonic technique is provided. the design and synthesis of spirocycles is a challenging task becaus...
A COMMERCIALLY viable method of recovering polymer-grade ethylene from waste gas streams has been ded o p e d by TeMeCO Chemicals. Called the ESEP process, it is based on the cuprous aluminum tetrachloride technoIogy previously applied by Tenneco to the recovery of carbon monoxide from dilute gas streams, Cosorb. (ESEP and Cosorb are trademarks.) The ESEP effort, as described by Arthur P. Gutie...
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