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RISS 인기검색어
- 검색키워드
- 저자 : Konopka, Eduard (검색결과 6 건)
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Iwona Konopka,Małgorzata Tańska,Alicja Faron,Sylwester Czaplicki 한국식품과학회 2014 Food Science and Biotechnology Vol.23 No.3
Changes in the free ferulic acid (FFA) contentsand antioxidant properties during bread making processeswere determined. Experimental breads were produced fromwhole meal and white wheat and rye flours, and fermentedusing either baker’s yeast or sourdough starter. Sourdoughfermented bread contained the highest content of FFA. Release of occurred mainly during dough fermentation. Afurther increase in the ferulic acid content in the breadcrumb and a decrease in the crust was observed. Totalantioxidant properties of sourdough bread, defined as thesum of lipophilic and hydrophilic compound activities,were significantly (p<0.05) higher than for yeast bread. Sourdough bread contained more methanol soluble phenoliccompounds, proteins, tocochromanols, and oxidized productsof fatty acids than yeast bread. The equilibrium betweenthe anti- and pro-oxidative compound contents resulted insimilar antioxidant properties for bread using both types offermentation, and to results observed for the flour used forbaking.
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Jan Jozefczuk,Ewa Konopka,Joanna Beata Bier1a,Ilona Trojanowska,Agnieszka Sowin´ska,Rafa1 Czarnecki,Lucjan Sobol,Pawe1 Jo´zefczuk,Weronika Surd,Bo_zena Cukrowska 한국식품영양과학회 2018 Journal of medicinal food Vol.21 No.2
There is evidence that children with autism spectrum disorders (ASDs) display an increased immune reactivity against gluten, which is supposed to be the effect of intestinal barrier abnormalities. The aim of study was to evaluate the relation of antibody induced by gluten to zonulin and intestinal fatty acid binding proteins (I-FABP), that is, serological markers of an impaired gut barrier. The study included 77 patients with ASDs. Zonulin, I-FABP, celiac-specific antibodies, anti-gliadin antibodies (AGA), and antibodies against neural transglutaminase 6 (TG6) of immunoglobulin (Ig) A and IgG classes were detected in sera. Celiac-specific antibodies were negative in all ASD children, four children (5.2%) had positive anti-TG6 antibodies, and increased AGA-IgG production was found in 21 patients (27.3%). Mean levels of zonulin and I-FABP in ASD patients were similar to those found in healthy controls and revealed a negative correlation with age, whereas regression analysis revealed a significant positive relationship between antibody production and the age. Serum concentrations of zonulin and I-FABP showed no statistically significant association with antibody positivity. An increased production of antibodies related to gliadin and neural TG6 in ASD children is not related to serological markers of an impaired intestinal barrier.
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Grzegorz Da˛browski,Iwona Konopka,Sylwester Czaplicki 한국식품과학회 2018 Food Science and Biotechnology Vol.27 No.3
This study was conducted to show impact of supercritical fluid extraction using pure SC-CO2 or SCCO2 enriched by 2, 6, and 10% of acetone, simultaneously varied by the extraction time (1 vs. 5 h), on the quality of chia seed oils. Obtained oils were relatively similar in the fatty acid composition, but they differed in total content of phytochemicals (from 4956 to 6391 mg/kg of oil). Among them, three oils were the most different: oil extracted 1 h with pure SC-CO2 (the most abundant in squalene, sterols, and tocopherols), oil extracted 5 h with pure SC-CO2 (the poorest in squalene, polyphenols, and carotenoids, with medium level of sterols and tocopherols) and oil extracted 1 h with SC-CO2 enriched by 10% acetone (the most abundant in polyphenols and carotenoids). Such unique chia oils can be valuable for special market needs, such as cosmetics, pharmaceuticals, functional food or diet supplement production.
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Monitoring of tall slender structures by GPS measurements
Chmielewski, Tadeusz,Breuer, Peter,Gorski, Piotr,Konopka, Eduard Techno-Press 2009 Wind and Structures, An International Journal (WAS Vol.12 No.5
A method is applied for the estimation of structural damage of tall slender structures using natural frequency and displacements measurements by GPS. The relationship between the variation in the global stiffness matrix (or in the stiffness of each finite element) and the change in the natural frequencies of the structure is given. In engineering practice the number of frequencies which can be derived by GPS measurement of long-period structures will be equal to one, two or three first natural frequencies. This allows us in initial studies to detect damage with frequency changes based on forward methods in which the measured frequencies are compared with the predicted analytical data. This idea, of health monitoring from possible changes to natural frequencies, or from a statement of excessive displacements is applied to the Stuttgart TV Tower.
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Monitoring of tall slender structures by GPS measurements
Tadeusz Chmielewski,Peter Breuer,Piotr Górski,Eduard Konopka 한국풍공학회 2009 Wind and Structures, An International Journal (WAS Vol.12 No.5
A method is applied for the estimation of structural damage of tall slender structures using natural frequency and displacements measurements by GPS. The relationship between the variation in the global stiffness matrix (or in the stiffness of each finite element) and the change in the natural frequencies of the structure is given. In engineering practice the number of frequencies which can be derived by GPS measurement of longperiod structures will be equal to one, two or three first natural frequencies. This allows us in initial studies to detect damage with frequency changes based on forward methods in which the measured frequencies are compared with the predicted analytical data. This idea, of health monitoring from possible changes to natural frequencies, or from a statement of excessive displacements is applied to the Stuttgart TV Tower.
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Plasma membrane organization promotes virulence of the human fungal pathogen Candida albicans
Lois M. Douglas,James B. Konopka 한국미생물학회 2016 The journal of microbiology Vol.54 No.3
Candida albicans is a human fungal pathogen capable of causing lethal systemic infections. The plasma membrane plays key roles in virulence because it not only functions as a protective barrier, it also mediates dynamic functions including secretion of virulence factors, cell wall synthesis, invasive hyphal morphogenesis, endocytosis, and nutrient uptake. Consistent with this functional complexity, the plasma membrane is composed of a wide array of lipids and proteins. These components are organized into distinct domains that will be the topic of this review. Some of the plasma membrane domains that will be described are known to act as scaffolds or barriers to diffusion, such as MCC/eisosomes, septins, and sites of contact with the endoplasmic reticulum. Other zones mediate dynamic processes, including secretion, endocytosis, and a special region at hyphal tips that facilitates rapid growth. The highly organized architecture of the plasma membrane facilitates the coordination of diverse functions and promotes the pathogenesis of C. albicans.
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