in current work, cds/black carbon nanocomposites were successfully synthesized with the aid of chestnut and cadmium nitrate as the starting reagents. besides, the effects of preparation parameters such as reaction time, and precursor concentration on the morphology of products and removal of heavy metals (hg+2, pb+2) were studied by scanning electron microscopy images and batch adsorption mode....

Stevia rebaudiana (Bert.) produces steviol glycoside sweeteners that are sweeter than sucrose. Stevioside and rebaudioside A important glycosides used in food production. This study was conducted to investigate the effect of different concentrations cadmium chloride (0, 20, 40, 60 80 mg/L) silver nitrate 15, 30, 45 sampling times on stevioside production Ent-kaurenoic acid 13-hydroxylase, uridi...

Heavy metal pollution in the biosphere has become a worldwide problem. Metal industry effluents, mining sites, municipal and agricultural waste are important sources of dispersion environment. imposed phytotoxicity affects seed germination, seedling growth, photosynthesis other physiological processes. Exposure seeds to cadmium (Cd) lead (Pb) deleterious effects resulting into inhibition delaye...

The development of anthropogenic activities such as industry, mining, agriculture, urban waste discard has been, the main actions that result in increased contamination by heavy metals soil, water and air. One most harmful made available these is cadmium, even at low concentrations it very toxic mainly plant structures. objective this work was to verify biochemical behavior nitrogen carbon meta...

background: the aim of the present study was the comparison of humoral and cell-mediated immunity in broilers fed with different levels of zinc during a coccidiosis challenge. methods: one hundred and forty- four one-day-old broiler chicks were used with three dietary zinc (40, 120 and 200 mg/kg). at 14 d of age, all birds were inoculated orally with 5×10 3 sporulated oocysts of e. tenella . at...