Packaging materials and articles for food: legislation and codes of good manufacturing practice
The basic objectives of food packaging materials are to provide safety and to pre- vent physical damage of the product, to retain or improve sensory characteristics, to offer a pleasing appearance, to be functional, to facilitate distribution, to give dimensional stability, but also to be compatible with the requirements regulated by the law. Consu...
By Aleksandra Porjazoska Kujundziski, Dragica Chamovska
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
Assessing the possibility of solidification and stabilization of pyrite cinder by using quicklime and fly ash
The aim of this study was to determine the possibility of using two low-cost binders, quicklime and fly ash for the solidification/stabilization (S/S) of pyrite cinder. Pyrite cinder, used in this study, represents a remnant from sulfuric acid production in fertilizer factory IHP “Prahovo” A.D. (Serbia), and has a very high toxic metal ...
By Djurdja Kerkez, Dragana Tomašević Pilipović, Milena Bečelić‐Tomin, Nataša Slijepčević, Dunja Rađenović, Anita Leovac Maćerak, Božo Dalmacija
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
Determination and Application of Improved Kinetic Parameters for Simulation of Maleic Anhydride Synthesis in Industrial Fixed- Bed Reactor
The aims of this study were to determine improved kineticparameters in five kinetic models for oxidation of n-butane intomaleic anhydride in an industrial fixed-bed reactor, and tosimulate the reactor performance. On the basis of the measuredprocess parameters, inlet and outlet concentrations of n-butanewere calculated and then used to fit the kine...
By Ervin Karić, Ivan Petric, Vladan Mićić