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Приказ резултата 11-20 од 46
Partitioning and purification of cellulases in aqueous two-phase system
(Tatranské Matliare : Slovak Society of Chemical Engineering, 2012)
Aqueous two-phase systems can be formed by mixing the solutions of two mutually incompatible polymers or polymer and salt above critical concentrations and represent media that are very well suited for the separation and ...
Study of lipase-catalyzed synthesis of ascorbyl oleate using response surface methodology
(6th Central European Congress on Food, CEFood 2012, 2012)
L-ascorbic acid has good antioxidative properties but its efficiency in stabilizing fats and oils in products with high lipid content is negligible due to its hydrophilic characteristics. On the other hand, fatty acid ...
Investigation of probiotic potential of Leuconostoc sp. and Lactobacillus sp. natural isolates from non-commercial milk and water kefir
(6th Central European Congress on Food, CEFood 2012, 2012)
Non-commercial milk and water kefir grains (from a household in Belgrade, Serbia) were used for isolation of lactic acid bacteria on TSA, MRS and M17 agar. Preliminary identification has been performed according to ...
Comparative Microhardness Analysis of Various Thin Metallic Multilayer Composite Films
(IEEE, New York, 2012)
Different composite systems of electrodeposited monolayered and multilayered thin metal films of Ni and Cu on cold-rolled copper substrates were made. Thin metal layers were deposited at narrow spacing of 300 nm and 150 ...
The failures of a supporting structure of a coal-reloading bridge and methodological approach to recovery of the damages
(University of Novi Sad, Fac Tech Sci, Adeko, Novi Sad, 2012)
In present paper, methodological approach to the analysis of the failures and recovery of the damages has been presented on an example of fracture and damage of a structure of the reloading bridge. The approach presented ...
Mechanochemically synthesized CaO·ZnO catalyst for biodiesel production
(20th International Congress of Chemical and Process Engineering, CHISA 2012 and 15th Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction, PRES 2012, 2012)
The transesterification of triglycerides (vegetable oil) with methanol using CaO·ZnO mixed oxides catalyst were conducted to produce Fatty Acid Methyl Esters (FAME), i.e. biodiesel. The catalysts were used in the methanolysis ...
Enzymatic Synthesis of Aliphatic Esters of Phenolic Acids and Evaluation of Their Antioxidant Properties
(Tatranské Matliare : Slovak Society of Chemical Engineering, 2012)
The esterification activity of the commercial immobilized lipase CALB towards cinnamic acids and its derivative has been studied. Using cinnamic acid as substrate, the reaction rate constants (1.95 h-1 mM-1 for ethanol and ...
The effect of Ni content on passivation of copper anodes with non-standard chemical composition
(Tatranské Matliare : Slovak Society of Chemical Engineering, 2012)
In this paper are presented the results of the first appearance of full pasivation during the treatment of the waste sulphuric-acid solution generated in the conventional copper electrorefining process. The copper anodes ...
Delimično topljenje i centrifugiranje kao nova metoda pred-tretmana metaličnog granulata e-otpada: Preliminarni laboratorijski test
(Bor : Tehnički fakultet, 2012)
Ogromne količine otpada od električnih i elektronskih proizvoda (e-otpad) koje se u svetu
svakodnevno generišu ne prerađuju se na adekvatan način. Rast cena metala koji se beleži
poslednjih godina, glavni je razlog što ...
Stabilizacija imobilisane lipaze iz Candida rugosa tretmanom imobilizata aminokiselinama / Stabilization of immobilized lipase from Candida rugosa by amino acid treatment
(Beograd : Srpsko hemijsko društvo, 2012)
Lipaze su enzimi koji imaju široku primenu u prehrambenoj, kozmetičkoj i farmaceutskoj industriji. U
industrijskoj praksi primenjuju se imobilisane lipaze, s obzirom da se imobilizacijom povećava stabilnost samog
enzima, ...