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Wyświetlanie 1-14 z 14
Tytuł:
Content of Na, K, Ca and Mg in complementary infant food
Zawartość Na, K, Ca i Mg w uzupełniających produktach spożywczych przeznaczonych dla niemowląt i małych dzieci
Autorzy:
Winiarska-Mieczan, A.
Powiązania:
https://bibliotekanauki.pl/articles/15077.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:
The aim of the study was to determine the content of selected mineral elements (sodium, potassium, calcium, magnesium) in fruit and vegetable desserts and dinner meals available on the Polish market designed for the nutrition of infants. The research material consisted of commercial desserts and dinner meals for infants, purchased in Lublin and Warsaw (Poland) before their use-by date. Fifteen different types of desserts (in glass jars) and seventeen types of dinner meals (in glass jarshe t) from ten different manufacturers were tested. The tested baby foodstuffs were made in Poland, Germany, Slovakia, the Czech Republic and Switzerland. The content of Na, K, Ca and Mg was determined by means of the AAS flame technique on a Unicam 939 (AA Spectrometer Unicam) apparatus. The concentrations of Na, Ca and Mg in the analyzed baby foods did not exceed the norms. Assuming that a baby aged 9-12 months consumes one jar of dessert and one jar of dinner meal daily, he/she takes in 94 mg of Na (21% of the AI), more than 342 mg of K (45% of the AI), about 35 mg of Ca (7% of the AI) and above 41 mg of Mg (33% of the AI) which are included in the product.
Źródło:
Journal of Elementology; 2014, 19, 2
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Content of zn, cu, fe and mn in processed fruit and mixed fruit and vegetable foodstuffs for infants
Zawartość zn, cu, fe i mn w gotowych produktach owocowych i owocowo-warzywnych przeznaczonych dla niemowląt
Autorzy:
Winiarska-Mieczan, A.
Powiązania:
https://bibliotekanauki.pl/articles/15802.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:
A baby’s diet can be greatly varied by offering new tastes. Children tend to consume willingly fruit such as apples or bananas. The first fruit tastes may be recognized by children by enriching their menu with dessert products containing pressed fruit, delicate in taste and smooth in texture so that they are easy to swallow. The research material consisted of fruit and vegetable desserts for infants and young children. Fifteen different types of desserts (in jars) from eight different manufacturers were tested. The content of Zn, Cu, Fe and Mn was determined by means of the AAS flame technique in a Unicam 939 (AA Spectrometer Unicam) apparatus. Although the permissible levels of Zn, Fe and Mn (Journal of Law 2007) were not exceeded in the dessert products, nearly all the products contained too much copper. The analyzed products contained the average of 282.2 mg of Zn per 100 kcal, 648.9 mg of Fe, 129.5 mg of Cu and 195.4 mg of Mn. Assuming that a baby aged 9-12 months consumes one jar of dessert daily, she/he ingests almost 0.27 mg of Zn (9% of the RDA), ca 0.63 mg of Fe (5.7% of the RDA), 0.12 mg of Cu (40% of the AI) and 0.21 mg of Mn from the product. Fruit and vegetable products are an important source of mineral elements in the baby’s diet. Because they usually contain less Zn and Mn in reference than demanded, they are a supplementary product rather than a staple one in infant nutrition.
Bardzo istotną rolą urozmaicania diety jest poznawanie nowych smaków. Dzieci zazwyczaj chętnie jadają owoce o łagodnym smaku, np. jabłka lub banany. Pierwsze owocowe smaki w jadłospisie dziecko może poznać dzięki delikatnym deserkom, które zawierają przetarte owoce, mają łagodny smak i gładką konsystencję ułatwiającą przełykanie. Materiał do badań stanowiły owocowo-warzywne desery przeznaczone dla niemowląt i małych dzieci. Badano 15 różnych typów deserów (w słoikach), wyprodukowanych przez ośmiu producentów. Zawartość Zn, Cu, Mn oraz Fe oznaczono za pomocą płomieniowej techniki AAS w aparacie Unicam 939 (AA Spektrometr Unicam). W badanych deserach dopuszczalny w polskiej normie (PN 2007) poziom Zn, Fe oraz Mn nie został przekroczony, natomiast zawartość Cu była zbyt wysoka. Badane produkty zawierały średnio 282.2 mg Zn 100 kcal–1, 648.9 mg Fe, 129.5 mg Cu oraz 195.4 mg Mn. Przyjmując, że dziecko w wieku 9-12 miesięcy spożywa dziennie jeden słoik deseru, wraz z tym posiłkiem przyjmuje ok. 0.27 mg Zn (9% RDA), 0.63 mg Fe (5.7% RDA), 0.12 mg Cu (40% AI) oraz 0.21 mg Mn. Produkty owocowo-warzywne są ważnym źródłem składników mineralnych w diecie dziecka. Ponieważ zawierają zwykle zbyt mało Zn i Mn w stosunku do zapotrzebowania, nie są produktem podstawowym w żywieniu niemowląt, a jedynie uzupełniającym.
Źródło:
Journal of Elementology; 2011, 16, 2
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of addition of herbs on body weight and assessment of physical and chemical alterations in the tibia bones of broiler chickens
Wpływ dodatku ziół do paszy na masę ciała oraz cechy fizyczne i chemiczne kości piszczelowych kurcząt brojlerów
Autorzy:
Kwiecien, M.
Winiarska-Mieczan, A.
Powiązania:
https://bibliotekanauki.pl/articles/16157.pdf
Data publikacji:
2009
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:
animal feeding
body weight
bone
broiler chicken
chemical property
feed additive
physical property
tibia
herb
addition
mineral component
Opis:
Bones, even after their growth has been completed, react to both external and internal factors which include feeding. The process of bone mineralization, including limb bones, is a very important index of the effectiveness and quality of feeding procedures, aswell as a measure of the organism’s health status. Antibiotics, which used to be very popular growth stimulators in feeding, have recently been replaced with natural feed additives, namely herbs. Although the usefulness of herbs has been known for a long time, little information has been found so far concerning their use in animal feeding and effect on the physical parameters and the chemical composition of the bones chickens. The aim of the present work was to determine a potential influence of herbs added to chickens’ diets on the body weight, chosen physical parameters of tibia bones: their weight, length and the content of the basic mineral components of the bone. The experiment was conducted on 210 broiler chickens of the Ross 308 line, divided into seven feeding groups: the control group (I – a mixture containing an antibiotic) and six experimental ones (II – hops, III – lime, IV – lemon balm, V – pansy, VI – peppermint, VII – nettle). In the bone samples, their weight, length, and the chemical composition of ash: Ca, Mg and P were determined. The results obtained in the present study reveal that an addition of nettle or lemon balm to the mixtures led to an increase in the body weight of broiler chickens. An addition of hops (II) to the mixtures led to a decrease in the length of the bones. An addition of lemon balm, pansy, peppermint or nettle to the mixtures had a negative effect on the level of Mg in the bones.
Kości, nawet po zakończeniu swego wzrostu, reagują na czynniki wewnętrzne i zewnętrzne, do których należy również żywienie. Proces mineralizacji tkanki kostnej, w tym kości kończyn, jest bardzo ważnym wskaźnikiem efektywności i jakości stosowanego żywienia, ale również i miernikiem stanu zdrowotnego organizmu. Antybiotyki, do niedawna popularne w żywieniu stymulatory wzrostu, zaczęto zastępować naturalnymi dodatkami paszowymi, np. ziołami. Mimo że przydatność ziół jest znana od dawna, to w żywieniu zwierząt, jak dotąd, nie ma jednoznacznych informacji na temat ich wpływu na organizm kurcząt oraz parametry fizyczne i skład chemiczny kości. Celem pracy było określenie potencjalnego wpływu dodatku ziół do mieszanek paszowych na masę ciała, wybrane parametry fizyczne kości piszczelowych: masę i długość oraz zawartość podstawowych mineralnych składników koścca. Doświadczenie przeprowadzono na 210 kurczętach brojlerach Ross 308, podzielonych na 7 grup: kontrolną (I – antybiotyk) i 6 doświadczalnych (II – chmiel, III – lipa, IV – melisa, V – bratek, VI – mięta, VII – pokrzywa). Określono masę powietrznie suchą kości piszczelowych, długość całkowitą, a po mineralizacji – zawartość podstawowych składników mineralnych: Ca, Mg i P. Stwierdzono, że wprowadzenie do mieszanek pokrzywy i melisy istotnie zwiększyło masę ciała kurcząt, a dodatek chmielu spowodował skrócenie kości. Zastosowanie dodatku melisy, bratka, mięty i pokrzywy wpłynęło na zmniejszenie koncentracji Mg w kościach.
Źródło:
Journal of Elementology; 2009, 14, 4
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Milk slices as a source of macroelements and microelements in the diet of pre-schoolers
Autorzy:
Jachimowicz-Rogowska, K.
Winiarska-Mieczan, A.
Kwiecień, M.
Powiązania:
https://bibliotekanauki.pl/articles/53851080.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:
Sponge cake bars with milk filling, commonly referred to as milk slices, are a very frequent choice among children. These products are considered convenience foods consumed for breakfast and snacks during the day. They owe their popularity to commercials promoting these sweets as products that, in terms of calcium content, can successfully replace a glass of milk. Unfortunately, due to such associations, young consumers habitually choose highly sweetened products of low nutritional value. Since milk slices are very popular components of children’s diets, they should be a source of essential nutrients, including mineral elements. This paper aimed to assay the level of selected macroelements (Ca, Mg, K, and Na) and microelements (Fe, Cu, and Zn) in sponge cake bars of milk slice type (n=15). The mean content of macroelements in the analysed products can be represented as K (3724 mg kg-1 ± 502.0) > Na (2703 mg kg-1 ± 2366) > Ca (1393 mg kg-1 ± 646.7) > Mg (489.4 mg kg-1 ± 211.9). The mean content of microelements in the analysed products can be represented as Fe (24.53 mg kg-1 ± 13.19) > Zn (8.946 mg kg-1 ± 2.444) > Cu (2.188 mg kg-1 ± 0832.7). When considering the daily requirement of pre-schoolers (aged 4-6) for the analysed minerals, it was established that, on average, one serving of a milk slice (31.7 g) supplies 17.9% RDA Cu, 12.5% RDA Mg, 10.7% AI K, 9.2% AI Na, 8.0% RDA Fe, 5.8% RDA Zn, and 4.1% RDA Ca. Our findings imply that milk slices are not a good source of minerals in pre-schoolers’ diets.
Źródło:
Journal of Elementology; 2023, 28, 2; 349-361
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Breakfast cereal as a source of sodium, potassium, calcium and magnesium for school-age children
Autorzy:
Winiarska-Mieczan, A.
Kwiecien, M.
Kwiatkowska, K.
Krusinski, R.
Powiązania:
https://bibliotekanauki.pl/articles/13894.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:
human nutrition
child
school child
breakfast cereal
sodium source
potassium source
calcium source
magnesium source
macroelement
cereal
Opis:
Breakfast cereal is a regular component of daily diets in Poland and in other countries. Since these products are very popular components of diets, they should be a source of key nutrients, including minerals. The objective of the study was: 1) to determine how popular cereals were among young and preteen school children; 2) to verify whether cereals could be a source of sodium (Na), potassium (K), calcium (Ca) and magnesium (Mg). 232 ready-to-eat products were tested. The content of Na, K, Ca and Mg was determined using flame atomic absorption spectrometry in a Varian SpectrAA 280 FS. Daily intake of Na, K, Ca and Mg by children (aged 7 - 12 years) from 1 serving of breakfast cereals (1 serving size = 30g cereal + 125 ml milk) was compared with AI (for Na and K) or RDA (for Ca and Mg). The highest content of Na was recorded in cornflakes (approx. 500 mg/100 g), K in bran (more than 250 mg/100 g), Ca in bran and wholegrain cereals (approx. 57 mg/100 g), Mg in bran (nearly 180 mg/100 g). It was found that although cereals were not a rich source of Na, K, Ca and Mg for the studied group of consumers, when prepared with milk their nutritional value was significantly enhanced. One serving of breakfast cereals with milk per day would cover 5 – 17% of AI for Na, 5 - 7% of AI for K , 12 – 17% of RDA for Ca and 10 – 57% of RDA for Mg. Cornflakes, which turned out to be the richest source of Na, were the least valuable in terms of the content of the macroelements, in which they resembled rice flakes. All breakfast cereals, while not being particularly rich in Na, K, Ca and Mg, when prepared with milk have a considerably better value for school-age children and ensure a higher consumption of milk.
Źródło:
Journal of Elementology; 2016, 21, 2
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ chelatu glicynowego miedzi na parametry fizykochemiczne, morfometryczne i wytrzymałościowe kości piszczelowych kurcząt
The effect of copper glycine chelate on physicochemical, morphometric and strength parameters of tibia bones in broiler chickens
Autorzy:
Kwiatkowska, K.
Kwiecień, M.
Winiarska-Mieczan, A.
Bąkowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/2196782.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
drob
kurczeta
kosci
kosc piszczelowa
wlasciwosci fizyczne
wlasciwosci morfometryczne
wytrzymalosc kosci
czynniki zywieniowe
chelaty glicynowe
chelat miedzi z glicyna
Źródło:
Annales Universitatis Mariae Curie-Skłodowska. Sectio EE: Zootechnica; 2016, 34, 1; 1-14
0239-4243
2083-7399
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska. Sectio EE: Zootechnica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ procesów termicznych na zmiany podstawowego składu chemicznego ziarna pszenicy
Effect of thermal processes on changes in basic chemical composition of wheat grain
Autorzy:
Kiczorowska, B.
Andrejko, D.
Winiarska-Mieczan, A.
Samolinska, W.
Prystupa-Rusinek, E.
Powiązania:
https://bibliotekanauki.pl/articles/827112.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Technologów Żywności
Opis:
Celem pracy było określenie zmian składu chemicznego ziarna pszenicy odmian: ‘Finezja’, ‘Retro’ i ‘Nikol’ zachodzących pod wpływem ekstruzji i naświetlania promieniami podczerwonymi. Ziarno nawilżano do 15 i 25 % wilgotności i ekstrudowano w temp. 110/135/175/180/124 ºC oraz naświetlano promieniami podczerwonymi w 100 i 130 ºC przez 30 i 90 s. W materiale doświadczalnym oznaczono zawartość: suchej masy, popiołu surowego, tłuszczu surowego, białka ogólnego, włókna surowego, BAW, frakcji włókna (ADF, NDF, CEL, HCEL i ADL) oraz skrobi. W ziarnie pszenicy naświetlanej w temp. 130 ºC przez 90 s stwierdzono istotne zmniejszenie (p ≤ 0,05) zawartości białka ogólnego (o 7 % w ziarnie ‘Finezja’ i o 5 % w ziarnie ‘Retro’) oraz tłuszczu surowego (o 4 % w odmianie ‘Finezja’). W analizowanym materiale procesy termiczne spowodowały zmniejszenie zawartości włókna surowego, najwięcej w ekstrudowanym ziarnie ‘Finezja’, ‘Retro’ i ‘Nikol’, odpowiednio o: 38, 26 i 39 %. Zmniejszeniu uległa także zawartość skrobi w ekstrudowanym i w naświetlanym ziarnie ‘Finezja’ (odpowiednio o: 18,5 i 10 %). Zjawisko to obserwowano również w przypadku frakcji włókna pokarmowego. Największe ubytki dotyczyły: ADF (24 % – ‘Nikol’), NDF (12 % – ‘Retro’ i 9 % – ‘Nikol’), CEL (17 % – ‘Nikol’) oraz HCEL (16 % – ‘Retro’ i 10 % – ‘Nikol’). Niekorzystnym efektem zastosowanych procesów był wzrost zawartości ADL (o 7 % w naświetlanym ziarnie pszenicy ‘Finezja’ i o 11 % – w ekstrudowanym ziarnie ‘Retro’). Najlepszą modyfikację składu chemicznego ziarna w wyniku ekstruzji uzyskano w pszenicy ‘Finezja’ i ‘Nikol’, nawilżanej przed procesem do 25 % wilgotności, a w efekcie naświetlania – w odmianie ‘Nikol’.
The objective of the research study was to determine the changes in the chemical composition of grains of the ‘Finezja’, ‘Retr’ and ‘Nikol’ wheat cultivars resulting from the processes of extrusion and infrared radiation. The grains were moisturized to obtain 15 and 15 % of moisture therein and extruded at a temperature of 110/135/175/180/124 ℃ as well as irradiated by infrared radiation at 100 and 130 ℃ for 30 and 90 s. In the material analyzed, the following was determined: dry matter, crude ash, ether extract (crude fat), total protein, crude fibre, NFE, fibre fractions (ADF, NDF, CEL, HCEL and ADL), and starch. In the wheat grains irradiated at a temperature of 130 ℃ for 90, a significant (p ≤ 0.05) decrease in the content of crude protein was reported (about 7 % in the ‘Finezja’ grains and 5 % in the ‘Retro’ grains) and in the content of crude fat (4 % in the ‘Finezja’ grains). In the analyzed material, the thermal processes performed caused the content of crude fibre to decrease (the highest decrease was in the extruded ‘Finezja’, ‘Retro’, and ‘Niko’ grains, respectively: 38, 26, and 39 %). Additionally, the content of starch decreased in the extruded and irradiated ‘Finezja’ grains (respectively: 18.5 % and 10 %). The same phenomenon was also found in the case of dietary fibre fraction. The highest losses referred to the following: ADF (24 % - ‘Nikol’); NDF (12 % - ‘Retro’ and 9 % - ‘Nikol’); CEL (17 % - ‘Nikol’); and HCEL (16 % -and 10 % ‘Retro’ – ‘Nikol’). An unfavourable effect of the processes applied was the increase in ADL (7 % in the irradiated ‘Finezja’ wheat grains and 11 % in the extruded ‘Retro’ grains). The best modification of the chemical composition was achieved by the process of extruding the 'Finezja’ and ‘Nikol’ wheat grains that were moisturized to 25 % prior to the process; the infrared irradiation process resulted in the best modification of the chemical composition of the ‘Nikol’ wheat grains.
Źródło:
Żywność Nauka Technologia Jakość; 2015, 22, 1
1425-6959
Pojawia się w:
Żywność Nauka Technologia Jakość
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The most commonly used diet supplements for hair, skin and nails in the opinion of pharmacy employees from different cities in Poland
Najczęściej stosowane suplementy diety na włosy, skórę i paznokcie w opinii pracowników aptek z różnych miast na terenie Polski
Autorzy:
Jachimowicz-Rogowska, K.
Sowińska, L.
Winiarska-Mieczan, A.
Kolasa, K.
Fabjanowska, J.
Powiązania:
https://bibliotekanauki.pl/articles/29433481.pdf
Data publikacji:
2022
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Źródło:
Nauki Inżynierskie i Technologie; 2022, 1(38); 6074
2449-9773
2080-5985
Pojawia się w:
Nauki Inżynierskie i Technologie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The content of magnesium, calcium, sodium and potassium in infant formulas
Autorzy:
Kwiecień, M.
Winiarska-Mieczan, A.
Samolińska, W.
Kiczorowska, B.
Rusinek-Prystupa, E.
Powiązania:
https://bibliotekanauki.pl/articles/960258.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:
Mother’s milk is the basic food for infants. Sometimes women for various reasons cannot continue or are not willing to continue breastfeeding their babies and then infant formula provides an alternative. Although breast milk substitutes for infants are produced using high technology methods, their composition is to some extent different than that of breast milk. Breast milk does not contain a high amount of minerals on the overall (ash accounts for circa 0.2 %) but they are characterised by a very high level of assimilability. On the other hand, cow’s milk contains much higher amounts of minerals – ca. 0.7%. Cow’s milk contains 3 to 4 times more Ca, Mg, Na and K than breast milk. The study aimed to analyse infant and baby formulas in terms of the content of Ca, Mg, Na and K. The study covered 11 infant formulas. All the formulas were annotated as “food for particular nutritional uses”. The powdered milk formulas were purchased from retailers in Lublin Voivodeship in August 2014, prior to their best-before dates. The content of Ca, Mg, Na and K was determined by means of flame atomic absorption spectrometry in a Varian SpectrAA 280 FS apparatus. It was found that starter infant formulas contained less of minerals covered by the study than had been declared. It was demonstrated that the content of Ca, Mg, Na and K in the analysed milk samples calculated per 100 kcal was generally comparable to their standard content.
Źródło:
Journal of Elementology; 2017, 22, 1
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The content of lead and cadmium in fruit-flavoured yoghurts and cream cheeses
Autorzy:
Winiarska-Mieczan, A.
Kiczorowska, B.
Krusiński, R.
Kwiecień, M.
Kwiatkowska, K.
Klebaniuk, R.
Powiązania:
https://bibliotekanauki.pl/articles/962697.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:
Flavoured yoghurts and cream cheeses are usually promoted by the manufacturers as snacks for children and young people. An undeniable advantage of such products is the fact that they can be treated as convenience food because they have long expiry dates, they are ready to eat and available in packaging of various sizes. However, both milk and dairies can be a source of toxic metals, in particular Pb and Cd, for children. The research aimed to measure the level of Pb and Cd in fruit-flavoured yoghurts and cream cheeses. The analyses involved 83 products: 42 yoghurts and 41 cream cheeses. The products were split into 11 groups, depending on the used flavouring. The content of Cd and Pb was determined using the GF AAS method. In addition, the safety of fruit-flavoured yoghurts and cream cheeses was estimated for consumers aged 5 and 10. The analysed yoghurts contained on average 0.028 mg Pb and 0.008 mg Cd kg-1, whereas the cream cheeses – on average 0.02 mg Pb and 0.017 mg kg-1 Cd. The values were lower than acceptable. The highest (P < 0.05) content of Pb was recorded in mixed flavour yoghurts, whereas as regards cream cheeses – in stone fruit flavoured products. The highest (P < 0.05) content of Cd was recorded in vanilla-flavoured yoghurts and in mixed flavour and strawberry-flavoured cream cheeses. For a child, having one cup of fruit-flavoured yoghurt is equivalent to a daily intake of max. 7% BMDL01 Pb and max. 18.3% TWI Cd, whereas one cup of cream cheese – max. 28.5% BMDL01 Pb and max. 33.5% TWI Cd. The presented results indicated that one cup of fruit-flavoured yoghurt and cream cheese was safe for consumers in terms of Cd and Pb content. However, it should be noted that products most eagerly chosen by children (strawberry, peach) had the highest content of Pb and/or Cd per 1 cup, which means that their frequent consumption can be associated with a risk of increased intake of such toxic metals.
Źródło:
Journal of Elementology; 2017, 22, 4
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of cadmium and lead on living organisms – transport, accumulation, metabolism
Autorzy:
Bąkowski, M.
Winiarska-Mieczan, A.
Kwiecień, M.
Krusiński, R.
Jachimowicz-Rogowska, K.
Twarużek, M.
Grobelska, D.
Powiązania:
https://bibliotekanauki.pl/articles/53376672.pdf
Data publikacji:
2024
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:
Heavy metals are metals and non-metals with molecular weights exceeding 20 and specific gravity above 5. The heavy metal cycle in the environment is linked to the food chain: soil – plant – animal – human. The transfer of metals to the higher link results in a cumulative increase in their content. Pollution with heavy metals has become a severe threat to the environment and food safety due to the rapid development of agriculture and industry and disturbances in the natural ecosystem induced by the enormous growth of the global population. Major sources of heavy metals in soil are bedrock, industrial and transport emissions, municipal management, and agriculture. Three main reasons for the toxicity of metals were found to be: participation of metals in enhancing the production of ROS (Reactive Oxygen Species) and modification of the activity of the antioxidant system, ability to react directly with proteins, resulting from the affinity between metals and thiol, histidine and carboxyl groups and leading to the attachment of metal ions to active sites of enzymes, structural elements of cells and proteins involved in cell transport, and replacement of elements necessary for metabolism, e.g. calcium in bones or iron in erythrocytes with metals, which leads to damage and changes in their structure and metabolism. The key solution towards decreasing the content of Cd and Pb in food is to limit or prevent their initial absorption by plants used for food or animal feed. However, due to the complexity of interactions between soil chemistry, varieties and species of plants and agronomic practices, additional research is needed.
Źródło:
Journal of Elementology; 2024, 29, 1; 311-328
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Content of Na, K, Ca, Mg, Zn, Cu and Fe in flavoured honeys
Autorzy:
Winiarska-Mieczan, A.
Kwiecień, M.
Chmielowiec-Korzeniowska, A.
Jachimowicz-Rogowska, K.
Tymczyna, L.
Żebracka, A.
Bielak, A.
Powiązania:
https://bibliotekanauki.pl/articles/54162099.pdf
Data publikacji:
2022
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:
The honey market is characterised by a wide variety of products. Honey producers also introduce modifications, e.g. flavoured honeys, with the addition of fruit, herbs and/or spices. The main purpose of adding this type of substance to honey is to enrich it with biologically active substances, which enhance the product’s health-promoting properties. Honey plays both a nutritional and a medicinal role, as it contains many valuable substances, including macroand microelements. The content of minerals depends on the type of honey, when it is harvested, and its region of origin. The aim of the study was to evaluate the mineral composition (Na, K, Ca, Mg, Zn, Cu, Fe) of flavoured honeys. Twenty-eight types of honey were studied, including 8 multifloral honey and 20 flavoured multifloral honeys enriched with herbs, marshmallow root, seaberry, elderberry, cranberry, hops, cloves, ginger, vanilla, black cumin, lemon, blackberry, strawberry, orange, raspberry, European blueberry, as well as three creamed honeys with ginger and lemon grass, lemon and peppermint, and strawberry. The study showed that honey containing fruit and/or herb juice or extracts generally had higher mineral content than multifloral honey without flavourings. Only the content of Na was lower, probably due to the component composition of flavoured honeys. Although flavoured honey is not a significant source of minerals in human nutrition (supplying less than 1% of the Reference Daily Intake), the minerals present in the highest quantities are commonly deficient in a human diet, and therefore the role of flavoured honeys in rational nutrition should not be overlooked.
Źródło:
Journal of Elementology; 2022, 27, 4; 917-927
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nutritional value and the content of minerals in eggs produced in large-scale, courtyard and organic systems
Autorzy:
Kiczorowska, B.
Samolinska, W.
Kwiecien, M.
Winiarska-Mieczan, A.
Rusinek-Prystupa, E.
Al-Yasiry, A.R.M.
Powiązania:
https://bibliotekanauki.pl/articles/14352.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:
nutritional value
mineral content
mineral element
egg
egg laying
poultry keeping system
courtyard
organic system
Opis:
The aim of this study was to determine the content of basic nutrients as well as selected macroand micro-elements in the albumen and yolk of eggs produced at large-scale, commercial poultry production farms (10) as well as in organic (8) and courtyard farms (12). Ten eggs were randomly collected 3 times on each farm. For chemical analyses, the eggs were hard-boiled for 15 min and then stored at a temp. of 4°C until analyzed. The albumen and yolk of hard-boiled eggs were assessed for the content of dry matter, total protein, crude fat and crude ash, and for their energy value (net Atwater equivalents) as well as the concentrations of K, Na, Ca, Mg, P, Fe, Zn, Cu, Se and Mn. No differences were observed in the content of dry matter, total protein and crude ash. However, differences were demonstrated for the crude fat content, the highest (P < 0.05) level of which was found in eggs from the organic system (higher by 60% in albumen and by 17% in yolk than in the other eggs), which was accompanied by an increased energy value of these eggs. In all the analyzed eggs, similar concentrations were noted for Mg (egg white) and P (egg albumen and yolk). The albumen of eggs from the organic system was characterized by the highest (P < 0.05) content of K, Na, Ca, Zn, Se and Mn. In turn, the albumen of eggs from large-scale commercial poultry production farms contained the highest (P < 0.05) levels of Fe, Cu and Se. Yolks of the eggs from the organic system accumulated the highest (P < 0.05) levels of K, Na, Ca, Mg and Fe. In turn, the highest (P < 0.05) concentrations of Zn, Se and Mn were determined in yolks of the eggs produced in the homestead system, and that of Cu – in yolks of the eggs from large-scale commercial production. A highly positive correlation between concentrations of minerals in the albumen and yolk of the analyzed eggs was reported for the following pairs: K-Na, Se (0.998, 0.93); Na-Na (0.949); Ca-Mg, Mn (0.994, 0.951); Mg-Ca, Mn (0.986, 0.982); P-Ca, Mn (0.997, 0.961); Fe-K, Mg, P, Zn (0.999, 0.937, 0.988, 0.999); Zn-Ca, Mn (0.999, 0.945); Se-Cu (0.971) and Mn-Ca (0.902), whereas a negative correlation for: Ca-Fe, Cu (-0.974, -0.994); Mg-Cu (-0.921); P-Fe (-0.933); Zn-Fe (-0.912); Cu-Na (-0.951); Se-K, P, Zn (-0.960, -0.910, -0.962) and Mn-Se (-0.979).
Źródło:
Journal of Elementology; 2015, 20, 4
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The efficiency of dairy cattle nutrition on chosen farms of central-eastern Poland
Efektywność żywienia krów mlecznych w wybranych gospodarstwach środkowo-wschodniej Polski
Autorzy:
Kiczorowska, B.
Klebaniuk, R.
Kowalczuk-Vasilev, E.
Bakowski, W.
Samolinska, M.
Jarzyna, P.
Zasadna, Z.
Olcha, M.
Kwiecien, M.
Winiarska-Mieczan, A.
Zajac, M.
Al-Yasiry, A.R.M.
Danek-Majewska, A.
Powiązania:
https://bibliotekanauki.pl/articles/2771.pdf
Data publikacji:
2018
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Źródło:
Annals of Warsaw University of Life Sciences - SGGW. Animal Science; 2018, 57[4]
1898-8830
Pojawia się w:
Annals of Warsaw University of Life Sciences - SGGW. Animal Science
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-14 z 14

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