نتایج جستجو برای: ethyl maltol
تعداد نتایج: 34589 فیلتر نتایج به سال:
nanocrystalline magnesium oxides were prepared by sol–gel method and were characterized by x-ray diffraction, n2-bet, sem and infrared spectroscopy techniques. the results confirmed the formation of nano- mgo materials with crystallite size in range of 5-20 nm and surface areas of 336-556m2/g. the product has been tested as destructive adsorbent for the decontamination of (2-chloroethyl) ethyl ...
abstract little information is available concerning morphological responses of lolium perenne cultivars (numan and speedy green) to salinity and trinexapac-ethyl treatment in initial growth. in order to evaluate the effect of salinity treatment (0, 2000, 4000 and 6000 mg/lit) and trinexapac-ethyl levels (0, 50, 100 gr/ha) on morphological responses of 'numan' and 'speedy green' in initial growt...
bermudagrass [cynodon dactylon (l.) pers.] is a perennial grass and has been long used as a medicinal herb in iranian traditional medicine to treat varied ailments. different parts of bermudagrass such as leaves, stolons, rhizomes and culms are rich sources of metabolites such as proteins, carbohydrates, mineral constituents, β-sitosterol, flavonoids, alkaloids, glycosides and triterpenoides. g...
از آنجا که دانه ی گیاه خرفه منبع غنی ای از اسید های چرب ضروری میباشد لذا نیازمند روشی کارامد جهت استخراج بهینه این اسیدهای چرب میباشیم.با توجه به مزایای روش استخراج با سیال فوق بحرانی شامل سرعت استخراج,گزینش پذیری و کنترل حلالیت,اثر پیش تغلیظ کنندگی, کمی بودن استخراج,تمیزی و ایمنی, دمای پایین ,سادگی ,صرفه جویی در هزینه و قابلیت ادغام با تکنیک های دیگراین روش جدید استخراج برای استخراج اسیدهای چر...
Syntheses of vanadium complexes using the naturally occurring ligands isomaltol (Hima) and allomaltol (Hama), as well as a newly synthesized, potentially tetradentate diaminodipyrone [H(2)(en(ama)(2)], are reported. Complete characterization of the resulting compounds [trans-VO(ima)(2)(H(2)O), VO(ama)(2), V(ima)(3), V(ama)(3) and VO(en(ama)(2))], including X-ray crystallography analyses for tra...
background: methotrexate (mtx) is an anti-metabolite drug widely used in treatment of neoplastic disorders, rheumatoid arthritis and psoriasis. the ester derivative, ethyl pyruvate (ep) is stable in solution and should function as an antioxidant and energy precursor. this study was conducted to evaluate the protective role of ep on sperm parameters, testosterone level and malondialdehyde (mda) ...
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