Autor: Staszowska, A. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Photodegradation of Lower Polybrominated Diphenyl Ether Congeners in Indoor Air – Model Studies
Autorzy:: Staszowska, A.
Powiązania:: https://bibliotekanauki.pl/articles/124336.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: PBDEs
indoor air quality
flame retardants
photolytic degradation
Opis:: Polybrominated diphenyl ethers (PBDEs) are additive flame retardants which have found applications in polymers for many consumer plastic and electronic goods. Wide use of these chemicals has led to their extremely high concentrations in the indor environments. This paper presents an exploratory study of the photodebromination of five individual lower polybrominated diphenyl ether congeners (BDE-28, BDE-47, BDE-99, BDE-100 and BDE-101) irradiated with white light and different UV (A, B, C) light ranges. The capability of photodegradation of lower PBDEs under room lights was proven by the debromination which occurred with various effectiveness for the selected PBDE congeners and depended of light source. Almost all PBDE congeners showed the greatest decay when exposed to UV-C, with the exception of BDE-100. The decay of irradiated congeners occurred rapidly during the first 5 min of experiment. The final degradation varied from 38% decay (BDE-28, UV-C) to 94% (BDE-47, UV-C). These findings can help in predicting PBDE behavior in indoors and also be useful in the design of PBDE remediation processes.
Źródło:: Journal of Ecological Engineering; 2017, 18, 3; 180-186
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

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: 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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