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Prikaz rezultata 31-40 od 164
Synthesis and characterization of a new type of levan-graft-polystyrene copolymer
(Elsevier Sci Ltd, Oxford, 2016)
Novel macromolecular graft copolymers were synthesized by reaction of the hydroxyl groups of the microbial polysaccharide levan, produced using Bacillus licheniformis, with polystyrene (Lev-g-PS). Synthesis was performed ...
The iron(III)-modified natural zeolitic tuff as an adsorbent and carrier for selenium oxyanions
(Elsevier, Amsterdam, 2014)
Se(IV) and Se(VI) anions are the dominant species of Se existing in aqueous systems. In this study, the iron(III)-modified natural zeolitic tuff (Fe-CLI) from the Serbian deposit Zlatokop has been investigated as an adsorbent ...
Environmental impacts of the meat chain - Current status and future perspectives
(Elsevier Science London, London, 2016)
BACKGROUND: The meat chain sector is recognized as one of the leading polluters in the food industry. Research on environmental performance in the meat industry has been analyzed in terms of the meat product(s), the ...
Protein-reinforced and chitosan-pectin coated alginate microparticles for delivery of flavan-3-ol antioxidants and caffeine from green tea extract
(Elsevier Sci Ltd, Oxford, 2015)
In this study, potential interactions of alginate-proteins and proteins-polyphenols were utilized for the formulation of microparticles encapsulating green tea flavan-3-ols and caffeine. Electrostatic assisted extrusion ...
Hierarchical ZSM-5, Beta and USY zeolites: Acidity assessment by gas and aqueous phase calorimetry and catalytic activity in fructose dehydration reaction
(Elsevier Science Bv, Amsterdam, 2014)
The acidity of hierarchical USY, Beta and ZSM-5 zeolites obtained by alkaline treatment was investigated. Samples were characterized by low temperature nitrogen adsorption, X ray diffraction and solid-state (27)AI MAS NMR. ...
Weeds shift from generalist to specialist: narrowing of ecological niches along a north-south gradient
(Czech Botanical Soc, Praha 2, 2014)
There are changes in the realized niches of species along environmental gradients, especially at the edge of their distribution where they become more specialized. A classical case is weeds of the Caucalidion alliance that ...
Analysis and characterisation of phytochemicals in mulberry (Morus alba L.) fruits grown in Vojvodina, North Serbia
(Elsevier Sci Ltd, Oxford, 2015)
In this study, the polyphenolic profile of 11 Morus alba fruits grown in the Vojvodina region was investigated. Ultra high performance liquid chromatography (UHPLC) coupled with Linear Trap Quadrupole and OrbiTrap mass ...
Optimization of bentonite clay mechano-chemical activation using artificial neural network modeling
(Elsevier Sci Ltd, Oxford, 2017)
The properties of seven montmorillonite-rich bentonites of different geological origin were investigated prior and subsequent to mechano-chemical processing in an ultra-centrifugal mill. The objective of the experiment was ...
Effects of mechanical activation and two-step sintering on the structure and electrical properties of cordierite-based ceramics
(Elsevier Sci Ltd, Oxford, 2016)
The mechanical activation can help reduce production costs and modify cordierite-based materials. In this study, the structure and electrical properties of the mechanically activated MgO-Al2O3-SiO2 system have been analyzed. ...
The influence of concentration and temperature on the viscoelastic properties of tomato pomace dispersions
(Elsevier Sci Ltd, Oxford, 2016)
The influence of concentration and temperature on the rheological properties of tomato pomace dispersions obtained by rehydration of lyophilized and grinded tomato pomace was investigated in this paper. Examined systems ...