نتایج جستجو برای: tropolonic alkaloid
تعداد نتایج: 7128 فیلتر نتایج به سال:
Hairy root culture plays an important role in investigation of alkaloid production in culture in vitro. The complexity of scientific work and the production capacity limitations associated with whole plant systems and unorganized cells can be overcome using culture of hairy roots. This paper presents an example of a strategy to produce secondary metabolites from plants, in which we investigated...
Conopharyngine, the major alkaloid present in the leaves of Tabernaemontana (Conopharyngia) pachysiphon var. cumminsi (Stapf) H. Huber was isolated and identified by Thomas & Starmer (1963). The same alkaloid has also been found in the stem bark of a Nigerian variety of the same species by Patel & Poisson (1966) and in the stem bark of Conopharyngia durissima by Renner, Prins & Stoll (1959). Co...
We study the interaction of berberine and sanguinarine (plant alkaloids) with DNA in aqueous solutions, by using optical spectroscopy methods (absorption and fluorescence). The dependencies of alkaloid spectral characteristics on the concentration ratio N/c between the DNA base pairs and alkaloid molecules in the solutions are considered, and the manifestations of the alkaloid– DNA binding are ...
background: plants and fruits are an essential component of the universe. human beings have used those as medicine from the very beginning of time. according to holy quran, the fruits like grape, date, fig, olive and pomegranate are gifts and heavenly fruits of god. eighteen fruits and plants name have been mentioned in the holy book of moslem. a phytochemical screening of these fruits and plan...
a new alkaloid (1) and two known compounds (2 and 3) were isolated from the blue-greenalga arthrospira platensis. their structures were determined on the basis of spectroscopic data.according to the obtained data and values in the literature, the compounds were concluded to beeckol.
چکیده خشخاش ایرانی با نام علمی papaver bracteatum از گونه های بومی ایران، دارای بیش از 100 آلکالوئید بنزیل ایزوکوئینولین مختلف است که برخی از آنها نظیر مرفین و کدئین به عنوان ضد درد، پاپاورین به عنوان شل کننده عضلات، نوسکاپین به عنوان داروی ضد تومور، سانگواینارین به عنوان ترکیب ضد میکروبی و تبائین که به عنوان ماده خام برای تولید داروهایی چون اکسی کدون، نالتروکسان و نالوکسان به کار می رود، از ن...
ergovaline, the main ergopeptine alkaloid produced in tall fescue ( fescue arundinacea schreb.) infected with endophyte ( neotyphodium coenophialum morgan- jones & gams), is known to cause tall fescue toxicosis. this study was conducted to examine the presence of fungal endophytes in five populations of tall fescue collected from various regions of iran. the existence of neotyphodium mycelia in...
A fast, practical ambient extraction methodology followed by isocratic liquid chromatography (LC) analysis with UV detection was validated for the determination of berberine, hydrastine, and canadine in goldenseal (Hydrastis canadensis L.) root powder. The method was also validated for palmatine, a major alkaloid present in the possible bioadulterants Coptis, Oregon grape root, and barberry bar...
The opium poppy, Papaver somniferum, is one of mankind's oldest medicinal plants. Opium poppy today is the commercial source of the narcotic analgesics morphine and codeine. Along with these two morphinans, opium poppy produces approximately eighty alkaloids belonging to various tetrahydrobenzylisoquinoline-derived classes. It has been known for over a century that morphinan alkaloids accumulat...
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