The demand for ready-to-use functional foods is high, which encourages manufacturers to develop new, nutritionally valuable products. As an excellent source of biologically active compounds, beetroot (Beta vulgaris L.) considered have highly beneficial effects on health. This research aimed evaluate the impact replacing spelt flour (SF) with 15%, 20% and 25% powder (BP). physicochemical properties biscuits baked at different temperatures (150 170 °C) were followed beginning, after 3 6 months...

In environmental analysis, the detection of water-soluble synthetic polymers (WSSP) presents considerable challenges. Thus, a precise and reproducible analytical method was developed using continuous-flow off-line pyrolysis with gas chromatography/mass spectrometry (GC/MS) to simultaneously identify multiple from single sample. WSSP are widely used in industries as hydrogels due their hydrophilic character potential biocompatibility. This adaptability is reflected ability provide customized...

Abstract Novel polyurethane copolymers derived from 4,4′‐methylenediphenyl diisocyanate (MDI), 1,4‐butanediol (BD) and α,ω‐dihydroxy‐[poly(caprolactone)‐poly (dimethylsiloxane)‐poly(caprolactone)] (α,ω‐dihydroxy‐(PCL‐PDMS‐PCL); $ \overline M _{\rm{n}} = 6100 g mol −1 ) were synthesized by a two‐step polyaddition reaction in solution. In the synthesis of polyurethanes, PCL blocks served as compatibilizer between nonpolar PDMS polar comonomers, MDI BD. The thermoplastic polyurethanes (TPU)...

Abstract The goal of this work was to investigate the relationship between antioxidants’ content and oxidative stabilities grape seed oils obtained from Cabernet Sauvignon variety. samples were by ultrasound assisted extraction. time extraction varied, while other relevant parameters: temperature, solvent solid ratio sonication power kept constant. For sake comparison, also done using conventional Soxhlet method. all oil obtained, contents total phenolic compounds (TPC), α‐tocopherol fatty...

Abstract High production rates and wide areas of application water-soluble polymers indicate their potential occurrence in wastewater. Poly(N-vinylcaprolactam) (PNVCL) is such a poorly biodegradable polymer with non-ionic, non-sticky, non-toxic thermosensitive properties. Its field applications covers being constituent aerosol sprays, pump lotions as well its usage flocculant wastewater treatment plants. However, although discharged into sewage plants at high amounts, analytical methods for...

Arsenic concentration in seafood could potentially reach very high levels and represent a significant health risk for humans. In this study, the of arsenic various seafood: crabs (shrimp, prawns), molluscs (mussels), cephalopods (squid) available both fresh on market frozen supermarkets Sarajevo, Bosnia Herzegovina were determined by electrothermal atomic absorption spectrometry (ETAAS). The results obtained using different matrix modifiers: Mg(NO3)2, Ni(NO3)2, Pd(NO3)2, mixture Pd(NO3)2 +...

This study aimed to evaluate the potential of beetroot powder (BP) as a functional ingredient in biscuits by investigating its effects on nutritional composition, sensory properties, and glycemic response. The primary goal was determine whether BP could serve natural alternative synthetic additives while maintaining product stability consumer acceptability. Biscuits were formulated replacing spelt flour with 15, 20, 25% BP. impact assessed based betaine content, macro- microelements, index...

Abstract Novel polyurethane co-polymers (TPUs), based on poly(ϵ-caprolactone)-block-poly(dimethylsiloxane)-block-poly(ϵ-caprolactone) (PCL-PDMS-PCL) as soft segment and 4,4'-methylenediphenyl diisocyanate (MDI) 1,4-butanediol (BD) hard segment, were synthesized evaluated for biomedical applications. The content of segments (HS) in the polymer chains was varied from 9 to 63 wt%. influence length HS thermal, surface, mechanical properties biocompatibility investigated. structure, composition...

Poly-(1-naphthylamine) films were synthesized potentiodinamically and potentiostatically from 1-naphthylamine in neutral acetonitrile medium using a platinum electrode. These polymer investigated by infrared spectroscopy. Contrary to earlier published results neglecting the stereochemistry of poly-(1-naphthylamine), we predict on basis quantum stereochemical analysis possible structural subunits polymer, that ordinary N?C(4) coupled product is not predominant because it far removed expected...

Abstract The aim of this work was to assume the amount BPA that can migrate food packed into cans coated by epoxy‐phenolic lacquer. assumption made determining which migrates from inner coating different simulants: 3% acetic acid, 10% ethanol, their mixture (3% acid +10% ethanol), and 50% ethanol. examined tinplate were special requirements Serbian Armed Forces. Further, effect sterilization process very initial time storage (15–105 days), on level in canned meatballs tomato sauce, are...

A series of novel thermoplastic urethane-siloxane copolymers (TPUSs) based on a ?,?-dihydroxy-[poly(?-caprolactone)-bpoly( dimethylsiloxane)-b-poly(?-caprolactone)] (?,?-dihydroxy-PCLPDMS- PCL) triblock copolymer, 4,4?-methylenediphenyl diisocyanate (MDI) and 1,4-butanediol (BD) was synthesized. The effects the content (9-63 wt. %) hard urethane segments their degree polymerization properties segmented TPUSs were investigated. structure, composition segment examined using 1H- quantitative...

A series of ?,?-telechelic polydimethylsiloxanes (PDMS), with predetermined molecular weights about 2500 g mol-1, was synthesized by siloxane equilibration reaction. Syntheses were performed using octamethylcyclotetrasiloxane (D4) and various disiloxanes: hexamethyldisiloxane (HMDS), 1,1,3,3-tetramethyldisiloxane (TMDS), 1,3-divinyltetramethyldisiloxane (DVTMDS), 1,3-bis(3-carboxypropyl)tetramethyldisiloxane (DCPTMDS) 1,3-bis(3-aminopropyl)tetramethyldisiloxane (DAPTMDS). The role the...

Abstract A series of thermoplastic elastomers based on soft polydimethylsiloxane (PDMS) and hard poly(butylene terephthalate) (PBT) segments was synthesized using a two‐step transesterification reaction in the melt. The molar mass PDMS component constant (M̄ nPDMS = 1056 g mol −1 ) while starting mixture compositions were varied to obtained copolymers with ratio range from 70/30 40/60. structure composition verified by 1 H NMR spectroscopy. It appeared that there pronounced maximum when PBT...

Abstract The kinetics of the formation poly(carbosiloxane), as well alkyl‐substituted poly(siloxane), by Karstedt's catalyst catalyzed hydrosilylation were investigated. Linear poly[(1,1,3,3‐tetramethyldisiloxanyl)ethylene], (PTMDSE), was obtained 1,3‐divinyltetramethyldisiloxane (DVTMDS) and 1,1,3,3‐tetramethyldisiloxane (TMDS), while poly(methyldecylsiloxane), (PMDS), synthesized poly(methylhydrosiloxane) (PMHS) 1‐decene. To investigate PTMDSE formation, two series experiments performed at...

In this study, the synthesis, structure and physical properties of two series thermoplastic polyurethanes based on hydroxypropyl terminated poly(dimethylsiloxane) (HP-PDMS) or hydroxyethoxy propyl (EO-PDMS) as a soft segment, 4,4?-methylenediphenyl diisocyanate 1,4-butanediol hard segment were investigated. Each is composed samples prepared with different segment. The synthesized by two-step polyaddition in solution. effects type content PDMS segments structure, thermal surface copolymers...

The migration of bisphenol A (BPA) from epoxy-phenolic can coating into canned meat products, produced for the needs Serbian Armed Forces, was investigated in this work. tinplate cans were made according to special military demands, filled with beef goulash or meatballs tomato sauce, and preserved by sterilization. structure internal analyzed FTIR spectroscopy. BPA content after storage under regular conditions typical facilities. samples (BG) 2010-2016, sauce (MB) 2014?2017 tested presence...

Polyurethane copolymers based on α,ω-dihydroxypropyl poly(dimethylsiloxane) (PDMS) with a range of soft segment contents were prepared by two-stage polymerization, and their microstructures, thermal, thermomechanical, surface properties, as well in vitro hemo- cytocompatibility evaluated. All utilized characterization methods confirmed the existence moderately microphase separated structures appearance some mixing between segments PDMS (i.e., segment) content increased. Copolymers showed...

Abstract A series of novel thermoplastic elastomers, based on poly(dimethylsiloxane) (PDMS) as the soft segment and poly(butylene terephthalate) (PBT) hard segment, were synthesized by catalyzed two‐step, melt transesterification reactions dimethyl terephthalate methyl esters carboxypropyl‐terminated poly(dimethylsiloxane)s ( M̄ n = 550–2170 g mol −1 ) with 1,4‐butanediol. The lengths both segments varied while weight ratio to in reaction mixture was maintained constant (57/43). molecular...

Abstract A series of novel thermoplastic elastomers based on ABA‐type triblock prepolymers, poly[(propylene oxide)–(dimethylsiloxane)–(propylene oxide)] (PPO‐PDMS‐PPO), as the soft segments, and poly(butylene terephthalate) (PBT), hard was synthesized by catalyzed two‐step melt transesterification dimethyl terephthalate (DMT) with 1,4‐butanediol (BD) α,ω‐dihydroxy‐(PPO‐PDMS‐PPO) ( M̄ n = 2930 g mol −1 ). Several copolymers a content PBT segments between 40 60 mass% constant length...