Autor: Litwińczuk, A. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Content of selected elements in the muscle tissue of plaice (Pleuronectes platessa) and garfish (Belone belone) from the Baltic Sea
Zawartość wybranych pierwiastków w tkance mięśniowej gładzicy (Pleuronectes platessa) i belony (Belone belone) z Morza Bałtyckiego
Autorzy:: Staszowska, A.
Skalecki, P.
Florek, M.
Litwinczuk, A.
Powiązania:: https://bibliotekanauki.pl/articles/15705.pdf
Data publikacji:: 2013
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:: Fish are an important component of a balanced human diet. Marine fish are more popular than freshwater fish among Polish consumers. All fish are an excellent source of minerals, which the human body cannot synthesize. Hence, they should be provided with food in right amounts and proportions. However, fish can be contaminated by heavy metals. For this reason, it is very important to determine the levels of selected trace elements in fish. The aim of this study was to compare the content of mineral compounds in the muscle tissue of two species of fish from the Baltic Sea, i.e. plaice (Pleuronectes platessa) and garfish (Belone belone). Wet-digested fish muscle samples were used to analyze the content of macro- (K, Na, Ca, Mg), and micronutrients (Zn, Fe, Mn, Cu) determined with flame atomic absorption spectrometry (AAS), and the levels of heavy metals (Cd, Pb) using flameless AAS. No significant differences between the species in the concentrations of K, Mg, Ca, Cu and heavy metals appeared, while the Na, Mn, Zn and Fe concentrations were significantly different between the two fish. Higher levels of Na, Mg, Mn and heavy metals were determined in muscle tissue of European plaice, while concentrations of the other macroand micronutrients were higher in muscles of garfish. The muscles of both species showed equal levels of Cd and Pb, below the maximum allowable limits.
Źródło:: Journal of Elementology; 2013, 18, 3
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: The effect of selected factors on yield and protein and mineral retention in traditionally produced tvarog
Autorzy:: Krol, J.
Kedzierska-Matysek, M.
Brodziak, A.
Zaborska, A.
Litwinczuk, A.
Powiązania:: https://bibliotekanauki.pl/articles/13611.pdf
Data publikacji:: 2018
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Źródło:: Journal of Elementology; 2018, 23, 3
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Fulfilment of the requirements of adults and children for minerals by beef, taking into account the breed of cattle and muscle
Autorzy:: Domaradzki, P.
Florek, M.
Staszowska, A.
Litwińczuk, Z.
Powiązania:: https://bibliotekanauki.pl/articles/960095.pdf
Data publikacji:: 2017
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:: As well as having the information about the nutritional value of raw meat, today’s consumers expect to be informed to what extent cooked meat meals satisfy recommended nutrition standards. The aim of the study was to estimate the degree to which the demand for selected macrominerals (K, Na, Mg, Ca) and microminerals (Zn, Fe, Mn, Cu) by adults and children is met by a portion of 100 g of cooked beef. For calculations, the average cooking loss at 40% and retention factors between 0.85 and 1.0 were taken into consideration. The degree of satisfying Polish nutrition standards (Recommended Dietary Allowance – RDA and Adequate Intake – AI) was analysed depending on a muscle (longissimus lumborum – LL vs. semitendinosus – ST) and breed of young bulls (Polish Red – PR, Whitebacked – WB, Polish Black-and-White – PBW, Simmental – SIM and Polish Holstein-Fresian – PHF). Among the evaluated cattle breeds, the meat of PHF bulls met to the greatest degree the recommended dietary allowance (RDA) for Zn, Fe and Mn, and to the smallest degree the daily requirement for K and Mg. The LL and ST muscles satisfied the nutritional standards for major minerals to a similar degree, and were primarily (especially the LL muscle) a good source of Zn and Fe (for adults and children), as well as a source of K, Mg and Cu for children. Consumption of 100 g of cooked meat (depending on the breed) satisfied from 52% to 85% of the RDA for Zn for women, 38-62% for men and as much as 83-136% for children. For Fe, the percentages were 14-20% for women and 26-36% both for men and children. Cooked beef was an important source of Mg, particularly for children, as a portion of 100 g met from 27% to 35% of their RDA. However, the same portion met only 3-5% of the daily standard for Na for adults and 4-6% for children.
Źródło:: Journal of Elementology; 2017, 22, 1
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Physicochemical, mechanical and sensory properties of long-ripened Polish and Italian cheeses and their content of selected minerals
Autorzy:: Kedzierska-Matysek, M.
Barlowska, J.
Wolanciuk, A.
Litwinczuk, Z.
Powiązania:: https://bibliotekanauki.pl/articles/14044.pdf
Data publikacji:: 2018
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Źródło:: Journal of Elementology; 2018, 23, 3
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Content of selected essential and potentially toxic trace elements in milk of cows maintained in eastern Poland
Zawartość istotnych i potencjalnie toksycznych wybranych pierwiastków śladowych w mleku krów utrzymywanych na terenie wschodniej Polski
Autorzy:: Krol, J.
Litwinczuk, Z.
Brodziak, A.
Kedzierska-Matysek, M.
Powiązania:: https://bibliotekanauki.pl/articles/15472.pdf
Data publikacji:: 2012
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:: Concentration of toxic metals in milk, especially in industrial regions, may serve as a direct bioindicator of the quality of milk and its products. But it can also function as an indirect indicator of contamination of the environment where milk is produced. The aim of the present study was to evaluate the content of some trace elements, i.e. Fe, Cu, Zn and Mn, as well as toxic elements (Cd and Pb) in milk from cows maintained on farms in three regions of Poland, including the production season as another aspect of the investigations. In total, 446 milk samples were analyzed. Significant influence of the season and production region on all the analyzed elements except Fe was noticed. Milk collected in the Biebrza and Bieszczady regions proved to be a richer source of Cu and Mn. Regardless of the production region, a higher content of Zn and Cu were observed in the summer, while more Mn was found in the winter milk. In none of the analyzed milk samples, Pb or Cd exceeded the permissible threshold.
Źródło:: Journal of Elementology; 2012, 17, 4
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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