نتایج جستجو برای: bio guided assay

تعداد نتایج: 373347  

Abbas Hadjiakhoondi, Fatemeh Moradkhani, Mahdi Vazirian* mahdieh kalkhorani, Mohsen Amin, Narguss Yassa, Seyedeh Bahareh Damankash

Background and objectives: Centaurea bruguierana subsp. belangeriana (DC.) Bornm. is an annual herb widely distributed in the world. It is used in folk medicine of Iran as an anti-ulcer for gastrointestinal problems. Previous studies have revealed the anti-ulcer effects of the plant extract and in the present study the anti-Helicobacter p...

Journal: :caspian journal of environmental sciences 2006
m. f. baqual p. k. das

the co-inoculation of mulberry with phosphate solubilizing micro-organisms, nitrogen fixing bacteria and arbuscular mycorrhiza has influenced its macronutrient uptake through leaf. the data revealed that maximum nitrogen (484.12 kg /ha) , phosphorus (59.83 kg /ha) and potassium (244.61 kg/ha) uptake through leaf has taken place due to co-inoculation treatments as compared to the un inoculated t...

Journal: :jundishapur journal of microbiology 0
atousa aliahmadi department of biology, medicinal plants and drug research institute, shahid beheshti university, tehran, ir iran; department of biology, medicinal plants and drug research institute, shahid beheshti university, tehran, ir iran. tel/fax: +98-02122431783 fateme mirzajani department of biotechnology, faculty of renewable energies and new technologies engineering, shahid beheshti university, tehran, ir iran; department of nanobiotechnology, protein research institute, shahid beheshti university, tehran, ir iran alireza ghassempour department of phytochemistry, medicinal plants and drug research institute, shahid beheshti university, tehran, ir iran ali sonboli department of biology, medicinal plants and drug research institute, shahid beheshti university, tehran, ir iran

conclusions as a result of the full range uv-vis scanning of the responsible band in the hptlc experiments (200-700 nm), the flavonoid was the most imaginable natural compound. results through the bioassay guided fractionation method, the greatest antibacterial activities were related to the n-hexane extract. it was also revealed that the effective anti-mrsa agent of the assessed plant was a re...

Journal: :RADIOISOTOPES 2014

Journal: :The Annals of Mathematical Statistics 1964

Journal: :Phytotherapy research : PTR 2007
Li Yang Haofeng Han Norio Nakamura Masao Hattori Zhengtao Wang Luoshan Xu

Bio-guided fractionation of the stems of Dendrobium aurantiacum var. denneanum using a 1,1-diphenyl-2-picryl-hydrazyl (DPPH) radical scavenging assay, led to the isolation of three 2-glucosyloxycinnamic acid derivates, namely, cis-melilotoside, trans-melilotoside and dihydromelilotoside, respectively. Their structures were elucidated through the analysis of uni- and bi-dimensional NMR, UV, IR a...

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