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CHARACTERIZATION OF TEA AQUEOUS EXTRACTS AND THEIR UTILIZATION FOR DYEING AND FUNCTIONALIZING FABRICS OF DIFFERENT CHEMICAL COMPOSITIONS
(Society of Chemists and Technologists of Macedonia, 2023)
Green, black, rooibos, and hibiscus tea (GT, BT, RT, and HT) aqueous extracts were prepared and
characterized in terms of total flavonoids (TFC) and total phenolic (TPC) contents and antioxidant and antimicrobial activities. ...
The synthesis, characterization, antioxidant and antimicrobial activity of some novel amides of the esters of substituted 1,4-dihydropyridines / Синтеза, карактеризација, антиоксидативна и антимикробна активност некиx нових амида естара 1,4-дихидропиридина
(Serbian Chemical Society, 2024)
The esters of substituted 1,4-dihydropyirdines (1,4-DHP) are formed in the reaction of an appropriate aldehyde and ethyl acetoacetate in the presence of concentrated water solution of ammonia. The esters form the amides ...
Differences in attitudes of operators and managers on risk management of pressure equipment
(Taylor and Francis Ltd., 2022)
Objectives. Previous research indicates that models for risk assessment of pressure equipment have not sufficiently or adequately integrated indicators of human factors and organizational factors. Methods. The goal of this ...
Green corrosion inhibitors of steel based on peptides and their constituents: a combination of experimental and computational approach
(Springer Science and Business Media Deutschland GmbH, 2023)
In this work, six groups of non-toxic compounds were tested as inhibitors for mild steel in 1 M HCl solution: glycine (Gly), glutamic acid (Glu), cysteine (Cys), a mixture of three amino acids glycine, glutamic acid, and ...
Cellulases: From Lignocellulosic Biomass to Improved Production
(MDPI, 2023)
Cellulases are enzymes that are attracting worldwide attention because of their ability to degrade cellulose in the lignocellulosic biomass and transform it into highly demanded bioethanol. The enzymatic hydrolysis of ...
Thermo-mechanical analysis of linear welding stage in friction stir welding Influence of Welding Parameters
(VINČA Institute of Nuclear Sciences, 2022)
The influence of friction stir welding parameters on thermo-mechanical behavior of the material during welding is analyzed. An aluminum alloy is considered (Al 2024 T351), and different rotating and welding speeds are ...
Dispersive liquid–liquid microextraction and Monte Carlo simulation of margin of safety for octocrylene, EHMC, 2ES, and homosalate in sunscreens
(John Wiley and Sons Ltd., 2023)
Dispersive liquid–liquid microextraction (DLLME) using a floating organic drop has been optimized and used for the sample preparation of four commonly used ultraviolet filter (UVF) substances in sunscreens. Plackett–Burman ...
Xylanase Production by Solid-State Fermentation for the Extraction of Xylooligosaccharides from Soybean Hulls
(University of Zagreb, 2023)
Research background. The development of a novel process for the production of xy-looligosaccharides (XOS) based on the 4R concept is made possible by the integration of numerous techniques, especially enzymatic modification ...
Spatio-temporal distribution of the calanoid copepod genus Centropages in relation to environmental factors in the southern Adriatic Sea (NE Mediterranean)
(Station Biologique de Roscoff, 2024)
Spatial and temporal variability of Copepoda was studied at four stations in the Bay of Boka Kotorska and five stations in the open waters of the South Adriatic Sea in 2008. The research area included three sectors differing ...
Activity Coefficients of the System {yNaCl + (1 – y)Na2HPO4}(aq) at T = 298.15 K Determined by Electromotive Force Measurements
(Pleiades Publishing, 2023)
The mean ionic activity coefficients of NaCl in a ternary system {yNaCl + (1 – y)Na2HPO4}(aq) were determined from measurements of the electromotive force (EMF) where the NaCl ionic strength fraction was y = (0.3012; 0.4015; ...