Recovery of Yttrium Oxide from Titanium-Aluminium based wastes
Yttrium belongs to the rare earth elements and critical metals.Yttrium oxide is mostly used in fluoroscent lamps, production ofelectrodes, in electronic filters, lasers, superconductors and asadditives in various titanium-aluminium materials to improve theirproperties. Recovery of yttrium oxide from secondary sourcessuch as red mud, coatings from c...
By Srećko Stopić, Sebastian Kallabis, Bernd Friedrich
Mathematical aspects of analysis of maximal pressure-volume work function
The paper presents relation for maximal pressure-volume work for closed systems by using principles of I and II law of thermodynamics, used in reversible processes in which mechanical and thermal balance has been achieved. For full interpretation of this problem for two characteristic cases, graphical review in p-v diagram is given, where in an obv...
By Branko Pejović, Mitar Perušić, Duško Kostić, Miladin Gligorić
Sinteza, karakterizacija i ispitivanje antioksidativne aktivnosti estarskih i amidnih derivata 2,6-dimetil-4-supstituisane-1,4-dihidropiridin-3,5-dikarboksilne kiseline
U ovom radu je izvršena sinteza šest estarskih derivata 2,6 dimetil-4-supstituisane-1,4-dihidropiridin-3,5-dikarboksilne kiseline: dietil-2,6-dimetil-4-fenil-1,4-dihidropiridin-3,5 dikarboksilata, dietil-2,6-dimetil-4-(3’-nitrofenil)-1,4 dihidropiridin-3,5-dikarboksilata, dietil-2,6-dimetil-4-(4’ nitrofenil)-1,4-dihidropir...
By Tamara Mijatović, Milica Perić, Luka Matović, Marija Ristović, Saša Drmanić
Reducing Packaging Waste – Mechanical Characteristics and Network Parameters of the Gelatin-Based Thin Film for Cruciferous Vegetables Packaging
The role of the materials used for packaging is to protect innercontent from external, mostly negative, factors. Besides beingsafe, and with good mechanical properties, these materials needto align with other consumers’ needs and demands, being bothattractive and authentic, while at the same time meetingecological requirements. Gelatin-based ...
By Filip Babić, Bojana Balanč, Nikola Milašinović
Pigmented maize - a potential source of β-carotene and α-tocopherol
Among cereals, maize has the highest content of bioavailable micronutrients in grain, particularly β-carotene and α-tocopherol, which makes this crop the most appropriate for biofortification. Great genetic variability is a valuable source of micronutrients, and genotypes with enhanced grain content could be used for improvement of comme...
By Violeta Anđelković, Jelena Masarović, Mirjana Srebrić, Snežana Mladenović Drinić
Effect of black sesame (Sesamum indicum) and flaxseed flour (Linum usitatissimum) on bread quality using surface response methodology
The study aimed to evaluate the effect of black sesame andflaxseed flour addition in different proportions on bread quality.The bread formulations were developed through the RotationalCentral Composite Design (RCCD). The independent variableswere: black sesame and flaxseed flour which incorporated inamounts from 25.85% to 54.15%. The effect of the ...
By Rafael Audino Zambelli, Luan Ícaro Freitas Pinto, Edilberto Cordeiro dos Santos Junior, Ana Carolina Viana de Lima, Mayara Lima Goiana, Luciana Gama de Mendonça, Bárbara Guerra Rodrigues
Characterisation and antimicrobial activity of silver nanoparticles derived from Vascellum pratense polysaccharide extract and sodium citrate
Silver nanoparticles (AgNPs) were synthesized by “green”, cheap hydrothermal method in an autoclave using sodium citrate and Vascellum pratense polysaccharide extract as reducing and stabilizing agents. Presence of spherical AgNPs was confirmed by UV-VIS spectrophotometry and scanning electron microscopy; particle size was determined as...
By Predrag Petrović, Danijela Kostić, Anita Klaus, Jovana Vunduk, Miomir Nikšić, Đorđe Veljović, Leo van Griensven
Physical and chemical modification of lignocellulosic waste biomass-tool for improving sorption capacity
The main constituents of ligno-cellulosic (LC) biomass are lignin, celluloses and hemicelluloses, complex polymers with many functional groups, which can be modified with the purpose to improve the sorption properties&...
By Zorica Lopičić, Tatjana Šoštarić, Jelena Milojković, Marija Mihajlović, Jelena Petrović, Ivan Antanasković, Mirjana Stojanović
Review of electrospray observations and theory
While a liquid is dripping out of a capillary tube, there is a possibility to affect the characteristics of the exiting flow in certain ways. One of the ways already used is by introducing an electric field that can be used to change the average droplet diameter and the droplet size distribution. This process is called electrospraying, while the th...
By Stefan Bošković, Branko Bugarski
Determination of some physical-chemical properties of biofortification soft wheat and flour of the varieties “Treska”
Cereal crops as a basic food for humans, little is used as a grain, but with millingthey are processed in the milling products: flour, meal, flakes and bran.Determining the content of some ingredients, such as protein, ash, wet gluten,fat, etc. in food products is important because they are present in the rawmaterials and final products. The import...
By Marija Menkinoska, Vinko Stanoev, Valentina Pavlova, Tatijana Blazevska, Victorija Stamatovska, Natasa Gjorgovska