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71.
Tamer H Gamel Jozef P Linssen Ahmed S Mesallam Ahmed A Damir Lila A Shekib 《Journal of the science of food and agriculture》2006,86(1):82-89
The effects of seed treatments, including cooking, popping, germination and flour air classification on several components of Amaranthus caudatus and A. cruentus seeds, including oil, sugars, fibre, minerals and vitamins were studied. The lipid, crude and dietary fibre, ash, and sugar contents were 71, 43, 140, 30 and 18 g kg?1 in raw A. caudatus and 85, 39, 134, 40 and 22 g kg?1 in raw A. cruentus seeds, respectively. Sucrose was the dominant sugar in the raw and thermal treated seeds of both species, while glucose and galactose were the dominant ones in the high protein and the germinated seed flours. Phosphorus, potassium, magnesium and calcium were the dominant minerals in the raw seeds of both species. Air classification increased the content of minerals by more than 35% while thermal treatments did not affect their content and germination increased the calcium and zinc contents. The ascorbic acid contents were 0.030 and 0.023 g kg?1 sample in raw A. caudatus and A. cruentus seeds, respectively. All the treatments reduced the ascorbic acid content, with a high effect for the air classification and the germinated seeds dried at 90 °C. The levels of vitamin B complex, including niacin, niacinamide, pyridoxine and riboflavin were increased in the high protein flour fraction (protein contents of these fractions of A. caudatus and A. cruentus were 263.9 g kg?1 and 246.6 g kg?1, respectively) and decreased in the thermal treated flours. Germination mostly increased the amounts of those vitamins while drying reduced their amounts. Copyright © 2005 Society of Chemical Industry 相似文献
72.
Ana Belščak-Cvitanović Slaven Jurić Verica Đorđević Lidija Barišić Draženka Komes Damir Ježek 《International Journal of Food Properties》2017,20(9):1971-1986
In this study principal component analysis and artificial neural networks were used to evaluate the potential of using binary mixtures of sodium alginate and other polysaccharide biopolymers as the carriers for microencapsulation of green tea bioactive compounds. Using binary mixtures of alginate and adjunct biopolymers increased the particle size (from 722 to 1344 µm) and textural parameters of the microbeads. Chemometric techniques revealed the combination of biopolymers and their ratio as the main factors influencing the encapsulation performance. The combination of alginate with hydroxypropyl methylcellulose and locust bean gum enabled to retain the highest (-)-epigallocatechin gallate and caffeine contents, the highest total phenols encapsulation efficiency, and their most retarded release in water, confirming these as the best delivery systems of polyphenol-type active compounds and signifying their potent food applications. 相似文献
73.
Chemical analysis showed that sunflower halawa contained higher crude ether extract than sesame halawa, while the protein, ash and crude fiber were practically similar in both. The chemical analysis emphasized the high energy value of sunflower halawa (23.3 kJ/g). The in vitro digestibility of sunflower and sesame halawas amounted to 98.9% and 98.4%, being close to that of casein (99.6%). Oil separation in sunflower halawa was followed during storage at room temperature. Although the peroxide value of sunflower halawa oil increased with prolonged storage time, rancid taste was not detected. Sensory evaluation showed no significant difference between sunflower and sesame halawas, except that the former was dark in colour. The introduction of 50% of each of sunflower and sesame tahinas in halawa manufacture is suggested to improve the quality characteristics as a means of doubling its production and reduction of importation of sesame seeds. 相似文献
74.
Marinela M. D?rtu Yves Boland Damien Gillard Bernard Tinant Koen Robeyns Damir A. Safin Eamonn Devlin Yiannis Sanakis Yann Garcia 《International journal of molecular sciences》2013,14(12):23597-23613
The crystal structures of two mononuclear Cu(II) NH2trz complexes [Cu(NH2trz)4(H2O)](AsF6)2 (I) and [Cu(NH2trz)4(H2O)](PF6)2 (II) as well as two coordination polymers [Cu(μ2-NH2trz)2Cl]Cl·H2O (III) and [Cu(μ2-NH2trz)2Cl] (SiF6)0.5·1.5H2O (IV) are presented. Cationic 1D chains with bridging bis-monodentate μ2-coordinated NH2trz and bridging μ2-coordinated chloride ligands are present in III and IV. In these coordination polymers, the Cu(II) ions are strongly antiferromagnetically coupled with J = −128.4 cm−1 for III and J = −143 cm−1 for IV (H = −J∑SiSi+1), due to the nature of the bridges between spin centers. Inter-chain interactions present in the crystal structures were taken into consideration, as well as g factors, which were determined experimentally, for the quantitative modeling of their magnetic properties. 相似文献
75.
Mikael Eriksson Joakim Lilliesköld Narcisa Jonsson Damir Novosel 《Engineering Management Journal; EMJ》2013,25(2):53-60
AbstractThe globalization of markets, mergers of international companies, and integration of managerial and business processes in global corporations are changing project management fundamentals. A clearly recognizable trend in multinational companies since the mid-1980s has been globalization of R&D and competence portfolios.Applied development is usually conducted in the form of a distributed project organization. A project team is formed across geographical, organizational, and cultural boundaries, engaging in a project with a global focus. Although a multinational project organization has great potential in many dimensions, there is no doubt that the execution of a distributed high technological project is still a great challenge.This article identifies success factors in the management of distributed projects with global goals. The authors have focused on the practical experiences of the execution of complex multinational projects in the area of applied system development for power industry. 相似文献
76.
Damir Tagirov Elena Lashina Rustam Kaibyshev 《Metallurgical and Materials Transactions A》2013,44(5):2369-2381
The effect of liquid hot isostatic pressing (LHIP) on the structure and mechanical properties of an A356.02 alloy was examined. It was shown that LHIP provides a porosity decrease from ~0.9 to 0.2 pct due to the elimination of shrinkage voids. As a result, the yield stress (YS) increases from 200 to ~230 MPa, the ultimate tensile strength (UTS) increases from ~275 to 310 MPa, the total elongation increases from ~4 to ~7.5 pct, and the fatigue strength increases from ~88 to ~140 MPa. It was found that the sequence of LHIP and homogenization annealing highly affects the hardness and variability in fatigue strength. LHIP followed by homogenization annealing provides the lowest scattering of fatigue strength and, therefore, the fabrication of the most reliable casting components. 相似文献
77.
High‐pressure recovery of anthocyanins from grape skin pomace (Vitis vinifera cv. Teran) at moderate temperature
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Predrag Putnik Danijela Bursać Kovačević Damir Ježek Ivana Šustić Zoran Zorić Verica Dragović‐Uzelac 《Journal of Food Processing and Preservation》2018,42(1)
The objective was to evaluate the influences of the high hydrostatic pressure extraction parameters on the recovery of anthocyanins from the grape skin pomace extracts (Vitis vinifera cv. Teran) under moderate temperatures. Studied parameters were: solvents (methanol and ethanol); solvent concentrations (30, 50, and 70%); pressures (300, 400, and 500 MPa); times (3, 6.5, 10 min); and temperatures (22, 26, 30 °C). Predominant anthocyanins in all extracts were malvidins (malvidin‐3‐glucoside as the main compound) representing 55.77% of overall anthocyanin content. The type of solvent did not significantly influence anthocyanin extraction yield, while decreased solvent concentration (increased solvent‐to‐water ratio) significantly improved extraction of anthocyanins. Increase of pressure enhanced extraction yield of the anthocyanins but temperature showed stronger impact on the anthocyanins recovery. This investigation evidenced that the best conditions for HHPE of anthocyanins from grape pomace were extraction time 3.39 min, extraction temperature 29.48 °C, pressure 268.44 MPa and solvent concentration 70%.
Practical applications
Due to increased interest for the use of cheap winery byproducts as a source of expensive polyphenols for functional food production, skins from grape pomace became valuable raw material. Therefore, there is a need to evaluate the influence of HHPE innovative extraction technology on its nutritive value during processing. Optimizing parameters for polyphenolic recovery from grape pomace is directly related with nutritional value and economics of food engineering during industrial processing. Obtained results showed that the HHPE under lower temperatures is suitable for the extraction process of anthocyanins from grape skin pomace, but more research is needed to identify other food‐grade solvents with their corresponding concentrations that are useful for the extraction assisted with high hydrostatic pressure. 相似文献78.
This work is devoted to the problem of planning of freight railway transportation. We define a special conflict graph on the basis of a set of acceptable train routes. The investigation aims to solve the classical combinatorial optimization problem in relation to the maximum independent set of vertices in undirected graphs. The level representation of the graph and its tree are introduced. With use of these constructions, the lower and upper bounds for the number of vertices in the maximum independent set are obtained. 相似文献
79.
The thicknesses of the hydration layers on the surfaces of 2 silicate glasses have been assessed using a) a combination of focused ion beam milling and transmission electron microscopy and b) nanoindentation; the two approaches give consistent layer thicknesses. Lighter contrast of the hydrated layers in TEM suggests that the layers have reduced density when compared to the bulk glasses; this is consistent with the reduced near surface modulus and hardness of hydrated glasses observed in nanoindentation. 相似文献
80.
Artem V. Sharov Tatyana M. Burkhanova Tugba Taskn Tok Maria G. Babashkina Damir A. Safin 《International journal of molecular sciences》2022,23(3)
In this work, we report in-depth computational studies of three plausible tautomeric forms, generated through the migration of two acidic protons of the N4-hydroxylcytosine fragment, of molnupiravir, which is emerging as an efficient drug to treat COVID-19. The DFT calculations were performed to verify the structure of these tautomers, as well as their electronic and optical properties. Molecular docking was applied to examine the influence of the structures of the keto-oxime, keto-hydroxylamine and hydroxyl-oxime tautomers on a series of the SARS-CoV-2 proteins. These tautomers exhibited the best affinity behavior (−9.90, −7.90, and −9.30 kcal/mol, respectively) towards RdRp-RTR and Nonstructural protein 3 (nsp3_range 207–379-MES). 相似文献