Cloud Point Extraction as a Method for Preconcentration of Metal Ions
Cloud point extraction (CPE) is an attractive technique that reduces solvent con- sumption and exposure, disposal costs, and process time. This method has an im- portant practical application and is used to separate and concentrate the analyte as a step before its determination, and after the formation of a poorly water-soluble complex. Use of noni...
By Nusreta Hasic, Emir Horozic
An exploration of the effects of low-pressure plasma discharge on the physico-chemical properties of chia (Salvia hispanica L.) flour
This work explores the preliminary feasibility of employing low-pressure cold plasma technology for the modification of the properties of chia flour. Chia flour was exposed to low-pressure plasma in the air for 5 min, 10 min, and 15 min, at two different power levels (40 W and 60 W). The oils extracted from untreated and treated chia flour were exh...
By Rohit Upadhyay, Rohit Thirumdas, Rajendra R. Deshmukh, Uday Annapure, Nrusimha N. Misra
β-sitosterol and gentisic acid loaded 1,2-dipalmitoyl-sn-glicero-3-phosphocholine liposomal particles
The aim of the present study was the examination of the impact of β-sitosterol and gentisic acid on characteristics of 1,2-dipalmitoyl-sn-glicero-3-phosphocholine (DPPC) liposomal particles: (a) bilayer permeability (fluorescence spectroscopy), (b) particle size, polydispersity index (PDI) and zeta potential (photon correlation spectroscopy) a...
By Aleksandra A. Jovanović, Bojana D. Balanč, Ajda Ota, Verica B. Djordjević, Katarina P. Šavikin, Viktor A. Nedović, Nataša Poklar Ulrih
Influence of coffee blends and roasting process on the antioxidant activity of coffee
The aim of this paper is to develop specification for the production of roasted coffee with improved nutritional quality. In this sense, the influence of different coffee blends and temperatures of roasting on the antioxidant activity of coffee was examined. Also, the composition of some bioactive components in the analyzed samples was determined. ...
By Božana Odžaković, Natalija Džinić, Zoran Kukrić, Slavica Grujić
Synthesis, characterization and in vitro biological evaluation of the Schiff base derived from Benzidine and 1,3-Diphenyl-1,3-propanedione
Schiff bases are organic compounds formed by the reaction of the primary amine with carbonyl compounds (aldehydes or ketones). These are mainly bi- or tridentate ligands capable of forming very stable complexes with transitional metals. They are used as catalysts in oxygenation, hydrolysis, electro-reduction and decomposition reactions. Many Shiff ...
By Emir Horozić, Jasmin Suljagić, Darja Husejnagić, Nusreta Hasić, Amra Bratovčić
Biochemical changes in myofibrillar and sarcoplasmatic meat proteins at different freezing rates
Freezing rate significantly affects the quality of frozen meat and its biochemical changes. The loss of water from the cellular structure, which, under normal conditions, acts as a mechanical barrier between protein chains, causes spontaneous interactions of proteins that result in their denaturation. In order to determine the content of myofibrill...
By Biljana Bodiroga, Ljubica Vasiljević, Dragan Vujadinović, Danica Savanović, Vladimir Tomović
HOW DOES CRYOGENIC FREEZING AFFECT THE CALORIMETRIC PROPERTIES OF LIQUID EGG PRODUCTS?
Eggs are widely utilized because of their high nutrient value, coagulating, foaming, emulsifying and sometimes even colouring or flavouring facilities in food manufacturing. Production of processed egg products shows an increasing trend. Frozen products belong to first processing, their shelf life can increase up to 1 year. By freezing, a large red...
By Hidas Karina Ilona, Ildikó Csilla Nyulas-Zeke, László Friedrich, Anna Visy, Judit Csonka, Csaba Németh
Removing Products of Thermal Degradation from Edible Oils by Zeolite and by Clinoptilolite - Comparison of Results
When edible oils are heated above 150°C, they undergo thermo-oxidative changes depending on a variety of factors, such as temperature, heating time, type of oil, etc. These changes cause a series of chemical reactions (hydrolysis, oxidation, polymerization, etc.) resulting in the formation of free fatty acids, an increase in the peroxide number...
By Sanja Dobrnjac, Ljubica Vasiljević, Stevan Blagojević, Miladin Gligorić, Zoran Obrenović, Vesna Cvijetinović, Dragan Tošković
MINERAL CONTENTS IN PORK AND EDIBLE OFFAL FROM INDIGENOUS PIGS
Meat is one of the most nutritious foods that humans can consume, and is defined as the flesh (skeletal muscles) of animals used as food. In addition to protein and fat, meat is a significant source of several micronutrients (minerals and vitamins). Edible offal is also a form of meat which is used as food, but which is not skeletal muscles, and in...
By Vladimir Tomović, Branislav Šojić, Marija Jokanović, Snežana Škaljac, Maja Ivić, Mila Tomović, Igor Tomašević, Slaviša Stajić, Aleksandra Martinović
Adsorption of phenol on polycrystalline gold from aqueous solutions
The presence of phenolic compounds as one of the most common organic pollutants in natural water (surface and ground waters) has been detected as a worldwide problem. Very small concentrations of phenols affect the quality of both environmental and household waters, and directly or indirectly impact lives in aquatic systems and humans, as well. Mos...
By Dragica Chamovska, Aleksandra Porjazoska Kujundziski