Претраживање
Приказ резултата 21-30 од 161
Enzymatic spectrophotometric reaction rate determination of aspartame / Enzimatsko-spektrofotometrijski test za određivanje aspartama
(Association of Chemical Engineers of Serbia, 2015)
Aspartame is an artificial sweetener of low caloric value (approximately 200 times sweeter than sucrose). Aspartame is currently permitted for use in food and beverage production in more than 90 countries. The application ...
Electrostatic extrusion as a dispersion technique for encapsulation of cells and bioactive compounds / Elektrostatička ekstruzija kao disperziona tehnika za inkapsulaciju ćelija i biološki aktivnih supstanci
(Association of Chemical Engineers of Serbia, 2012)
Significant development of cells and bioactive compound encapsulation technologies is taking place due to an exceptional possibility of their application in various scientific disciplines, including biomedicine, pharmacy, ...
The influence of PET containers on antimony concentration in bottled drinking water / Uticaj PET ambalaže na sadržaj antimona u flaširanim vodama za piće
(Association of Chemical Engineers of Serbia, 2010)
Antimony trioxide (Sb2O3) is the most frequently used catalyst in the polyethylene terephthalate (PET) manufacture. As a result, antimony is incorporated into PET bottles at concentration level of 100-300 mg/kg. PET ...
Serbian heavy clays behavior: Application in rough ceramics
(Association of the Chemical Engineers of Serbia, 2013)
This study is focused on the behavior of five new deposits of heavy clays from Serbia, with the aim to evaluate their potential suitability as raw materials in rough ceramic applications. The Pfefferkorn plasticity coefficient ...
Investigation of the morphology and surface properties of crosslinked poly(urethane-ester-siloxane)s / Ispitivanje morfologije i površinskih svojstava umreženih poli(uretan-estar-siloksana)
(Association of Chemical Engineers of Serbia, 2012)
Two series of crosslinked poly(urethane-ester-siloxane)s were synthesized from α,ω-dihydroxy-(ethylene oxide-poly(dimethylsiloxane)-ethylene oxide) (EO-PDMS- -EO), 4,4'-methylenediphenyl diisocyanate and Boltorn® hyperbranched ...
Influence of starch origin on rheological properties of concentrated aqueous solutions / Uticaj porekla skroba na reološka svojstva koncentrovanih rastvora skroba u vodi
(Association of the Chemical Engineers of Serbia, 2011)
The rheological properties of corn and potato starch concentrated aqueous solutions were investigated at 25 °C. The starches were previously dispersed in water and the solutions were obtained by heating of dispersions at ...
Optimization of gradual hemolysis for isolation of hemoglobin from bovine erythrocytes / Optimizacija procesa izolovanja hemoglobina iz goveđih eritrocita kontrolisanom hemolizom
(Association of Chemical Engineers of Serbia, 2012)
In this work, we describe an optimized procedure based on gradual hemolysis for the isolation of hemoglobin derived from bovine slaughterhouse erythrocytes in a membrane bioreactor. The membrane bioreactor system provided ...
Synthesis and characterization of copolymer hydrogels of chitosan, itaconic acid and N-isopropylacrylamide / Sinteza i karakterizacija kopolimernih hidrogelova hitozana, itakonske kiseline i N-izopropilakrilamida
(Association of Chemical Engineers of Serbia, 2011)
This paper deals with the synthesis of copolymer hydrogels of N-isopropylacrylamide, itaconic acid and chitosan. During synthesis, pH of the reaction solution and temperature were varied. It was found that the reaction at ...
Immobilization of lipase from Candida rugosa into copolymer hydrogels of poly(N-isopropylacrylamide-co-itaconic acid) synthesized in the presence of surfactants / Imobilizacija lipaze iz Candida rugosa u kopolimerne hidrogelove poli(N-izopropilakrilamid-ko-itakonska kiselina) sintetisane u prisustvu površinski aktivnih materija
(Association of Chemical Engineers of Serbia, 2011)
To overcome the problems of free enzyme application as catalysts in chemical reactions, i.e., high costs of isolation and purification processes, high sensitivity to process conditions, insufficient enzyme stability etc., ...
Comparative analysis of oxidative synthesis of N-alkyl, N,N-dialkyl and N-cykloalkyl-O-isobutyl thioncarbamate / Uporedna analiza oksidativnih postupaka sinteze N-alkil, N,N-dialkil i N-cikloalkil-O-izobutil tionkarbamata
(Association of Chemical Engineers of Serbia, 2011)
An optimized synthesis of N-alkyl, N,N-dialkyl- and N-cycloalkyl-O-isobutyl thioncarbamates by aminolysis of sodium isobutylxanthogenic acid (NaiBXAc) and primary, secondary and cycloalkyl amines was developed at laboratory ...