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Acta Alimentaria
Authors:
P. Penksza
,
R. sárosi
,
R. Juhász
,
K. Manninger-kóczán
,
B. Szabó-Nótin
,
L. Szakács
, and
J. Barta

The aim of the present study was to investigate whether the Jerusalem artichoke powder produced by a simple drying method is suitable for replacing inulin in dairy products and in fat replacer mixtures. Rheological properties of milk drinks were tested by rotational method measuring the flow curve and fitting the Herschel-Bulkley model. The Jerusalem artichoke powder showed similar rheological behaviour as the commercially available inulin and proved to be a more effective thickener in milk drinks as indicated by the higher consistency values at the same concentration. Panelists found milk drinks prepared with Jerusalem artichoke powder to have similar sensorial quality as prepared with inulin. Fat replacer mixtures were tested by oscillatory tests using amplitude sweep method. The samples containing Jerusalem artichoke powder had lower complex viscosity and initial G’ and G” values indicating weaker gel forming properties compared to inulin. However, lower slope of G’ and G” indicated their better spreadability. The organoleptic texture properties of fat replacer prepared with Jerusalem artichoke powder proved to be slightly better than that of the inulin containing mixture. Based on our results, the Jerusalem artichoke powder seems to be suitable to replace inulin as a natural additive in certain food products.

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Acta Alimentaria
Authors:
R. Sárosi
,
K. Manninger-Kóczán
,
P. Penksza
,
R. Juhász
,
B. Szabó-Nótin
,
L. Szakács
, and
J. Barta

The aim of the present study was to investigate whether Jerusalem artichoke powder produced by a simple drying method is suitable for replacing inulin as a dietary fibre in bread. Baking probe was performed using 0, 5, and 10% Jerusalem artichoke (JA) powder and 2.5 and 5% inulin (IN) on wheat flour weight basis. Functional properties of bread loafs were tested by Stable Micro System TA TX2i Texture Analyser (SMS) after 0, 24, 48, and 72 h storage. It was concluded that using inulin as a dietary fibre did not deteriorate the baking quality of bread, however, shelflife slightly decreased. Jerusalem artichoke powder compared to inulin had similar effect on the baking properties of bread. Based on our results, JA powder proved to be a promising alternative for fibre enhancement in bread.

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Acta Archaeologica Academiae Scientiarum Hungaricae
Authors:
E. Bánffy
,
K. Jankovits
,
M. Szabó
,
T. Gesztelyi
,
A. Bugán
,
D. Gáspár
, and
I. Bóna

E. Lenneis-J. Lüning: Die altbandkeramischen Siedlungen von Neckenmarkt und Strögen. (UPA 82) Bonn 2001; M. Doneus: Die Keramik der mittelneolithischen Kreisgra-benanlage von Kamegg, Niederösterreich. Ein Beitrag zur Chronologie der Stufe MOG I der Lengyel-Kultur. (MPK 46) Wien 2001; S. Hansen: Studien zu den Metalldeponierungen während der älteren Urnenfelderzeit zwischen Rhônetal und Karpaten-becken. (UPA 21, I-II) Bonn 1994; R. Rolle-V. Ju. Murzin-A. Ju. Alekseev: Königskurgan Čertomlyk. Ein skythischer Grabhügel des 4. vorchristlichen Jahrhunderts. (Hamburger Forschungen zur Archäologie 1) Mainz 1998; B. Nardelli: I cammei del Museo Archeologico Nazionale di Venezia. Collezioni e Musei Archeologici des Veneto 43. Collana diretta da G. Travesari. Roma 1999; T. Cvjetićanin: Glazed Pottery from Upper Moesia. (Arheološke Monografije) Beograd 2001; Slowenien und die Nachbarländer zwischen Antike und karolingischer Epoche. Anfänge der slowenischen Ethnogenese I-II. Hrsg. von R. Bratož. Ljubljana 2000; P. Somogyi: Byzantinische Fundmünzen der Awarenzeit. (Monographien zur Frühgeschichte und Mittelalterarchäologie 5) Innsbruck 1997.

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Abstract  

Mössbauer spectroscopy was used to study phlogopites from ultramafic xenoliths derived from alkali mafic rocks of the Transdanubian Midmountains. On the basis of evaluation of the Mössbauer spectra the following iron sites were identified /using the nomenclature published by Dyar1/ in the samples:

\documentclass{aastex} \usepackage{amsbsy} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{bm} \usepackage{mathrsfs} \usepackage{pifont} \usepackage{stmaryrd} \usepackage{textcomp} \usepackage{upgreek} \usepackage{portland,xspace} \usepackage{amsmath,amsxtra} \pagestyle{empty} \DeclareMathSizes{10}{9}{7}{6} \begin{document} $$Fe_{M1}^{2 + } , Fe_{M2}^{2 + } , Fe_{M3}^{3 + } and Fe_{tet}^{3 + } .$$ \end{document}
Quantitative analysis of all of the iron sites was performed. The Fe2+/Fe3+ ratio was found to be 3.33 for the sample for phlogopite xenolith and 2.05 for the sample from clinopyroxene-phlogopitite xenolith. There are evidences, that Fe3+ can occupy tetrahedral positions in upper mantle phlogopite, even if Si+Al>8. Our data suggest MARID+ glimmerite origin of micas.

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In a recent study (Comp. Biochem. Physiol. B. (2010)155: 301–308) we reported that the fatty acids (FA) of the avian (7 species) total lung phospholipids (PL) (i.e. lung parenchyma and surfactant together) provide allometric properties. To test whether this allometric scaling also occurs in either of the above components, in six gallinaceous species, in a body weight range from 150 g (Japanese quail, Coturnix coturnix japonica) to 19 kg (turkey, Meleagris gallopavo) the PL FA composition (mol%) was determined in the pulmonary surfactant, in native and in thoroughly lavaged lungs (referred to as lung parenchyma). In all three components docosahexaenoic acid (DHA) showed significant and negative allometric scaling (B = −0.056, −0.17 and −0.1, respectively). Surfactant PLs provided further negative allometry for palmitic acid and the opposite was found for palmitoleate and arachidonate. In the lung parenchymal PLs increasing body weight was matched with shorter chain FAs (average FA chain length) and competing n6 and n3 end-product fatty acids (positive allometry for arachidonic acid and negative for DHA). Negative allometric scaling was found for the tissue malondialdehyde concentration in the native and lavaged lungs (B = −0.1582 and −0.1594, respectively). In these tissues strong correlation was found between the MDA concentration and DHA proportion (r = 0.439 and 0.679, respectively), denoting the role of DHA in shaping the allometric properties and influencing the extent of in vivo lipid peroxidation of membrane lipids in fowl lungs.

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In the case of a widely used spice — Origanum vulgare subsp. hirtum — the effect of different drying methods (natural, and by using dryers at temperatures of 30°C, 40 °C, 45°C) was investigated referring to the essential oil amount and composition in the final material. The sensory characteristics of olive oils flavoured by the oregano samples were also determined. The essential oil amount and the area percentage of its main component — carvacrol — were significantly influenced by the different drying temperatures. Compared to the natural way of drying in the case of the essential oil content the drying temperature of 40°C and 45°C was preferable for the higher amounts. Referring to the carvacrol area percentage the drying temperature of 30°C resulted in the highest amounts (89.74±0.28%), that was affirmed by the sensory analysis as well; based on the taste descriptions the consumers found it the most pungent one. According to our results sensory analysis data in most of the cases corresponds to the GC-MS measurements and give a much more complex characterisation of a spice.

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Abstract  

57Fe-conversion electron Mössbauer spectroscopy (CEMS) — a sensitive tool to analyze the phase composition of corrosion products on the surface of stainless steel — was applied to study real specimens from the Paks Nuclear Power Plant, Hungary. The primary circuit side of the heat exchanger tubes was studied on selected samples cut out from the steam generators during regular maintenance. Mostly Cr-and Ni-substituted magnetite, amorphous Fe-oxides/oxyhydroxides as well as the signal of bulk austenitic steel of the tubes were detected. The level of Cr-and Ni-substitution in the magnetite phase could be estimated from the Mössbauer spectra. It is suggested that Cr-Ni substitution occurs simultaneously so that the inverse spinel structure of magnetite is preserved up to a certain limit which appears to be roughly at [Fe3+]tet[Fe2+ 1/4Ni2+ 3/4Fe3+ 1/4Cr3+ 3/4]octO4. Further decrease of the iron content of this phase results in the formation of nickel chromite of regular spinel structure, with very low Fe content. This transformation may be responsible for the hybrid structure of the protective oxide layer, being substantially accelerated by previously performed, factory developed and proposed AP-CITROX decontamination cycles.

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Acta Physiologica Hungarica
Authors:
Krisztina Rusai
,
A. Prokai
,
C. Juanxing
,
K. Meszaros
,
B. Szalay
,
K. Pásti
,
V. Müller
,
U. Heemann
,
J. Lutz
,
T. Tulassay
, and
A. Szabo

Previous experimental data suggest that steroids might have protective effects during hypoxic/ischemic injury of various organs. In this study, the association between dexamethason (Dexa) treatment and the anti-apoptotic SGK-1 was tested in ischemic renal injury. In vitro, HK-2 cells were exposed to 24 h hypoxia, and the effect of Dexa incubation on SGK-1 expression / activation and on cell death was studied. In an in vivo rat model of unilateral renal IR, animals were treated with Dexa, and serum renal function parameters, tissue injury and SGK-1 expression and localization were examined after different reperfusion times (2 h, 4 h and 24 h). Dexa at a dose of 2 mg/L exerted a protective effect on cell survival assessed by LDH release and vital staining paralleled by marked up-regulation of SGK-1. In rats, 2 mg/kg Dexa treatment 24 h prior to ischemia resulted in less severe tissue injury and ameliorated urea nitrogen levels 24 h after reperfusion. Furthermore, SGK-1 expression and phosphorylation were higher in Dexa animals demonstrated by Western blot and immunofluorescence technique. Our results provide novel data on the signalling mechanism of Dexa under hypoxia / ischemia and further support that Dexa emerges as an attractive pharmacological agent for the prevention of ischemic injury.

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Physiology International
Authors:
P Szablics
,
K Orbán
,
S Szabó
,
M Dvorák
,
M Ungvári
,
S Béres
,
AH Molnár
,
Z Pintér
,
K Kupai
,
A Pósa
, and
Cs Varga

Introduction

The quality and function of movements undergo deterioration due to weight gain. Aerobic training normalizes body weight, improves the health status, and in addition, it is expected to improve the dynamics of movements. The aims of this study were to prove the beneficial effects of recreational physical activities on the movements.

Methods

Participants were divided into five different age categories: second childhood, adolescence, mature age I, mature age II, and aging. Squatting and vertical jumping of the participants were measured at the beginning and at the end of a 5-month training program. These movements simulated ordinary daily movements. Changes in the body were determined by InBody230. APAS 3D system was used for movement analysis.

Results

The results showed significant improvements in body weight, fat mass, muscle mass, fat mass–body weight ratio, muscle mass–body weight ratio, body mass index, body fat percentage, and waist–hip ratio. During jumping, the lifting and sinking of the center of gravity’s (CG) position and its velocity and acceleration were improved. In case of squatting, the results showed significant improvements in the velocity and acceleration of dynamical characteristics of the CG. Other correlations were observed between changes in body composition and the dynamics of movements.

Discussion

The research proved that recreational training optimized body composition and improved the characteristics of CG’s dynamics. The study suggests considerable connection between body composition and the characteristics of the movements’ dynamics. From this point of view, our training program was the most effective in the working age groups.

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Acta Alimentaria
Authors:
G. Rónaszéki
,
Q. D. Nguyen
,
J. M. Rezessy-Szabó
,
Á. Hoschke
,
M. K. Bhat
,
Q. D. Nyguen
, and
M. K. Bhat
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