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the aim of this research was optimization of refining of raw sugarcane juice using bentonite for production of natural liquid sugar or cane honey. non-sugar substances of raw sugarcan juice contains: colorants, polysaccharides, gums, proteins, etc that affect on efficiency and quality of the final product and should remove from raw sugarcane juice. gelatin is a protein which is used as an aid c...

recent scientific evidence indicates that distinct patterns of susceptibility in balb/c mice to leishmania major infection are attributable to the differential expansion of distinct cd4+ t-cell subsets and their cytokines production. production of the th1 cytokine ifn-g is associated with resistance, whereas production of the th2 cytokines il-4 and il-10 are associated with extreme susceptibili...

background and objectives: the linear epitopes of gp46-i, gp46-ii, gp21 and p19 are used in diagnosis of htlv-i/-ii infections. the aims of this study was to obtain high-level expression and purification of recombinant antigen (ra) containing these epitopes. large-scale preparation of such antigen probably worths for diagnostic purpose. materials and methods: the synthetic dna encoding ra was s...

the histone-like protein hu is the most-abundant dna-binding protein in bacteria. the hu protein non-specifically binds and bends dna as a hetero- or homodimer, and can participate in dna supercoiling and dna condensation. it also takes part in dna functions such as replication, recombination, and repair. hu does not recognize any specific sequences but shows a certain degree of specificity to ...

Purification of soluble guanylate cyclase from rat liver resulted in an apparent loss of enzyme activation by nitric oxide that could be restored by dithiothreitol. methemoglobin, bovine serum albumin, or sucrose. Although hemoglobin also permitted some activation with nitric oxide, the effect of other agents to restore enzyme activation was prevented with hemoglobin. As a result of enzyme puri...

Natural biopolymers from plant sources contain many impurities (e.g., fat, protein, fiber, natural pigment and endogenous enzymes), therefore, an efficient purification process is recommended to minimize these impurities and consequently improve the functional properties of the biopolymer. The main objective of the present study was to investigate the effect of different purification techniques...

The paper investigates and recommends the multicomponent composition of cottonseed oil subjected to adsorption purification, divided into macro-and micro-impurities, according qualitative composition: substances that have an acidic, coloring unsaponifiable nature. authors come conclusion it is necessary develop a combined thermally differentiated capable purification on local activated sorbents.

INTRODUCTION........................................... 60 ADENYLATE CYCLASE FROM B. PERTUSSIS ........................................... 60 CALMODULIN REGULATION ........................................... 61 PATHOGENICITY AND CELL INVASION ........................................... 61 PURIFICATION AND CHARACTERIZATION ........................................... 62 ADENYLATE CYCLASE FROM BAC...

This paper describes the basics of photocatalysis on semiconductors, mainly on TiO2 and the application of photocatalytic processes to water purification from organic matter. The second chapter is devoted to metal cocatalysts introduced in order to improve the photocatalytic action of titania. Finally, a short review of more interesting practical applications of the processes is presented.