using hplc, the seasonal changes in the phenolic compound content of the leaves ofthe gemlik olive cultivar (olea europaea l) has been investigated with respect to theeffects on the alternate bearing of the cultivar. for this purpose, the leaf concentrations ofoleuropein, chlorogenic acid, caffeic acid, 3-hydroxycinnamic acid, scopolin and pcoumaricacid were analyzed at 10 day intervals around ...

the photocatalytic degradation of nonionic surfactant triton x-100 was studied by a batch process using znocommercial powders as the catalyst on irradiation with uv light and its behaviour comparatively with respect tozno nanoparticles with diameter size 20 nm. the effects of different conditions such as catalyst type, amount ofthe photocatalyst, ph of the system, initial concentration and elec...

conclusions according to achieved results, it was defined that swcnts is a quite effective adsorbent in removal of 2, 4-d from aqueous environments. results maximum adsorption capacity of the swcnts was 979.6 mg/g at ph5, contact time 45 min, initial concentration of 5000 µg/l, and 23 ± 2 ◦c temperatures, when 97.96% of 2, 4-d herbicide were removed. the adsorption equilibriums were analyzed by...

electrochemical oxidation of iodide has been studied in the presence of 2-thioborbituric acid using cyclic voltammetry and controlled-potential coulometry. the results indicate that, the resulting iodine takes part in halogenations reaction with 2-thiobarbituric acid. in addition, the present data are indicative of the suitability of iodide as a quasi mediator for determination of 2-thiobarbitu...

background and objectives: secreted aspartyl proteinase (sap) is one of the main virulence factors in the pathogenesis of candida. this enzyme is encoded by a family of at least ten genes. among these genes, the role of sap1-3 in mucosal infections is evident. this study aimed to investigate the expression of sap1-3 genes of candida albicans isolates after treatmentwith echinophora platyloba ex...

the dried plant was extracted with dichloromethane and after defatting with hexane, transferred repeatedly on silica columns using dichloromethane-hexane and ethyl acetate-hexane as mobile phases. finally the fractions were purified by high performance liquid chromatography using a pack-sil column and hexane: ethyl acetate as mobile phase. the structures of the isolated compounds included: cycl...

introduction: the clinical outcome of patients with squamous cell carcinoma (scc) located in the head and neck has remained poor despite ongoing advances in diagnosis and management. interleukin-6(il-6) is a multi-functional cytokine that plays an important role in the process of cell differentiation and is increased in several malignancies. the aim of this study was to investigate the serum le...