Autor: Polak-Juszczak, L. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Zawartosc skladnikow mineralnych w rybach wedzonych
Mineral elements content in smoked fish
Autorzy:: Polak-Juszczak, L
Powiązania:: https://bibliotekanauki.pl/articles/876467.pdf
Data publikacji:: 2008
Wydawca:: Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
Tematy:: zywnosc
ryby wedzone
skladniki mineralne
zawartosc skladnikow mineralnych
oznaczanie
mikroelementy
makroelementy
wapn
fosfor
zelazo
cynk
miedz
mangan
jod
food
smoked fish
mineral component
mineral component content
determination
microelement
macroelement
calcium
phosphorus
iron
zinc
copper
manganese
iodine
Opis:: Zbadano zawartość makroelementów: wapnia, fosforu, potasu, sodu i magnezu, mikroelementów: miedzi, cynku, żelaza, manganu, chromu, selenu i jodu w następujących rybach wędzonych: szprot, makrela, pikling, łosoś bałtycki i norweski oraz pstrąg. Najwięcej wapnia, fosforu żelaza, cynku, miedzi i manganu zawierały wędzone szproty. Zawartość wapnia w pozostałych gatunkach ryb była znacznie niższa, a zawartość fosforu zbliżona do jego zawartości w szprocie. Selen i fluor stwierdzano na zbliżonym wysokim poziomie we wszystkich badanych rybach, natomiast zawartość jodu była wysoka, choć zróżnicowana. Najwięcej jodu zawierały wędzone łososie i pstrągi, natomiast najmniej pikling, szprot i makrela. Oszacowano udział ryb w zalecanym dziennym spożyciu składników mineralnych w odniesieniu do zalecanego dziennego pobrania.
The content of macroelements (phosphorus, calcium, magnesium potassium and sodium) and microelements (copper, zinc, iron, manganese, chromium, selenium, fluorine and iodine) in the following smoked fish: sprat, mackerel, salmon, smoked herring and trout were determined. The most of calcium, phosphorus, iron, zinc, copper and manganese contain smoked sprat. The amount of calcium in fish's remaining species is considerably lower, and phosphorus approximated to his content in sprat. The selenium and the fluorine occur on approximate level in all examined fish, however the amount of iodine was diverse but high. Smoked salmon and trout contain the most iodine, and the least smoked herring, sprat and mackerel. Contribution of fish in the recommended daily intake for mineral elements was estimated.
Źródło:: Roczniki Państwowego Zakładu Higieny; 2008, 59, 2; 187-196
0035-7715
Pojawia się w:: Roczniki Państwowego Zakładu Higieny
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Toxic metals (Cd, Pb) in flatfish, mollusc Macoma balthica, water and sediments from the southern Baltic Sea
Autorzy:: Polak-Juszczak, L.
Powiązania:: https://bibliotekanauki.pl/articles/961404.pdf
Data publikacji:: 2017
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:: Environmental pollution is a worldwide problem, with toxic metals being among the most noxious pollutants. Aquatic organisms can accumulate toxic elements from their environment through different pathways, including water, diet and sediments. The aim of the study was to determine the distribution of toxic metals (Cd and Pb) in tissues of three species of flatfish (Platichthys flesus, Pleuronectes platessa, Scophthalmus maximus), and in their environment (water, sediment and their prey mollusc Macoma balthica) in four regions of the southern Baltic Sea, in order to identify the most important pathways of metal uptake in these fish. The concentrations of toxic metal were measured in a graphite furnace by atomic absorption spectrometry. Toxic metal concentrations in flatfish liver were significantly higher than in the muscle tissue. The liver was the target organ for Cd and Pb accumulation. The flatfish liver, M. balthica, sediment, and water from the Gulf of Gdansk contained higher level of Pb than did the samples from the central Baltic Sea coast. The Pb concentrations in the liver of P. flesus and P. platessa showed positive correlations with Pb in the soft tissue of M. balthica, sediment and sea water. The high correlation coefficient values for Pb suggest that flatfish took up this metal through the food chain from molluscs. In turn, M. balthica took up Pb and Cd from sediment and water, which was confirmed by the high correlation coefficients for these metals between this mollusc and sediment and water. The positive correlations for concentrations Pb and Cd in sediment and in water indicate the next stage of the pathway along which the metals travel in the Baltic Sea environment.
Źródło:: Journal of Elementology; 2017, 22, 2
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Toxic metals (Cd, Pb) in flatfish, mollusc Macoma balthica, water and sediments from the southern Baltic Sea
Autorzy:: Polak-Juszczak, L.
Powiązania:: https://bibliotekanauki.pl/articles/1190197.pdf
Data publikacji:: 2017
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:: Baltic Sea
toxic metals
flatfish
Macoma balthica
sediment
water
Opis:: Environmental pollution is a worldwide problem, with toxic metals being among the most noxious pollutants. Aquatic organisms can accumulate toxic elements from their environment through different pathways, including water, diet and sediments. The aim of the study was to determine the distribution of toxic metals (Cd and Pb) in tissues of three species of flatfish (Platichthys flesus, Pleuronectes platessa, Scophthalmus maximus), and in their environment (water, sediment and their prey mollusc Macoma balthica) in four regions of the southern Baltic Sea, in order to identify the most important pathways of metal uptake in these fish. The concentrations of toxic metal were measured in a graphite furnace by atomic absorption spectrometry. Toxic metal concentrations in flatfish liver were significantly higher than in the muscle tissue. The liver was the target organ for Cd and Pb accumulation. The flatfish liver, M. balthica, sediment, and water from the Gulf of Gdansk contained higher level of Pb than did the samples from the central Baltic Sea coast. The Pb concentrations in the liver of P. flesus and P. platessa showed positive correlations with Pb in the soft tissue of M. balthica, sediment and sea water. The high correlation coefficient values for Pb suggest that flatfish took up this metal through the food chain from molluscs. In turn, M. balthica took up Pb and Cd from sediment and water, which was confirmed by the high correlation coefficients for these metals between this mollusc and sediment and water. The positive correlations for concentrations Pb and Cd in sediment and in water indicate the next stage of the pathway along which the metals travel in the Baltic Sea environment.
Źródło:: Journal of Elementology; 2017, 22, 2; 487-496
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Effects of processing methods on the content of minerals in fish products
Autorzy:: Polak-Juszczak, L.
Powiązania:: https://bibliotekanauki.pl/articles/13995.pdf
Data publikacji:: 2016
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:: processing method
mineral content
fish product
salting
pickling
smoking
Opis:: Effects of salting, pickling and smoking processing methods on the mineral composition in fish products were investigated. The concentrations of Ca, P, Mg, K, Na, Cu, Fe, Zn, Mn and Se in fish products were determined during subsequent stages of processing in raw fish, semi-processed products and ready products. Fresh fish contained macro-elements in the following order: K > P > Na > Ca > Mg. The tendency was similar in semi-processed and ready products, except for the dominance of sodium. The sodium content in marinated products was three-fold higher than in fresh fish and twelve-fold higher in salted herring and cold-smoked fish. The sodium content in a 100 g portion of salted herring exceeded by six-fold the recommended daily allowance and by two-fold the tolerated amount. The content of K, Mg and P in marinated and salted herring tended to decrease throughout processing. No significant differences were observed in concentrations of Ca. The order of the concentrations of microelements was as follows: Zn > Fe > Cu > Se > Mn. The content of these elements in fish products was similar to their levels in fresh fish and corresponded to the following shares of the recommended allowances: Se up to 20%; Cu up to 11%; Zn up to 6%; Mn up to 1%; Fe up to 10%. Disadvantageous changes in the mineral composition in fish during processing result from water losses during technological processes, but the primary cause of mineral loss was leaching when the products were soaked in brine solutions with a high sodium content. Significant changes in the content of minerals in salted and pickled herring decreased the nutritional value of these products. Smaller mineral losses that occurred during smoking meant that these products were more valuable nutritionally in relation to minerals.
Źródło:: Journal of Elementology; 2016, 21, 2
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Składniki mineralne w przetworzonej żywności pochodzenia morskiego
The mineral elements in processed food of marine origin
Autorzy:: Polak-Juszczak, L.
Powiązania:: https://bibliotekanauki.pl/articles/287606.pdf
Data publikacji:: 2007
Wydawca:: Polskie Towarzystwo Inżynierii Rolniczej
Tematy:: składniki mineralne
konserwa rybna
metale ciężkie
tinned fish producs
mineral elements
heavy metals
Opis:: Praca przedstawia makro- i mikroelementy oraz metale toksyczne występujące w konserwach ze śledzi. Badaniami objęto konserwy ze śledzi i filetów śledziowych w oleju i w pomidorach. Wykonano analizy zawartości wapnia, fosforu, magnezu, potasu, miedzi, cynku, żelaza, manganu, chromu, selenu, fluoru, jodu, kadmu, ołowiu, rtęci i arsenu. Konserwy ze śledzi są źródłem wapnia, fosforu, selenu, fluoru i jodu, w mniejszych ilościach występuje w nich cynk i żelazo. Pozostałe mikroelementy (miedź, chrom, mangan) występują w badanych konserwach w niewielkich ilościach i nie wpływają znacząco na ich wartość odżywczą. Na podstawie średnich zawartości poszczególnych pierwiastków oszacowano, że jedna konserwa ze śledzi (o wadze 170 g) może dostarczyć do organizmu konsumenta ponad 50% dziennego zapotrzebowania na wapń i fosfor, 50% wymaganego jodu, do 40% potrzebnego selenu i całkowicie spełnia oczekiwania organizmu na fluor. Ponadto pokrywa w około 20% dzienne zapotrzebowanie na magnez, potas, cynk i żelazo. Metale toksyczne (kadm, ołów, rtęć i arsen) występują na niskim poziomie i nie stwarzają zagrożenia dla zdrowia ludzi.
The work discusses contents of macro- and microelements and toxic metals in tinned herrings. The tests covered tinned herring and herring fillets in oil and tomato sauce. The analyses of calcium, phosphorus, magnesium, potassium, copper, zinc, iron, manganese, chromium, selenium, fluorine, iodine, cadmium, lead, mercury and arsenic content were conducted. A technological processing did not free these products from mineral elements. The tinned herring the significant amount of calcium, phosphorus, selenium, fluorine and iodine, and zinc and iron in lesser amounts. Other microelements (copper, chromium, manganese) occur in the tested tinned food in little amounts and do not have any significant effect on their nutritive value. On the basis of average contents of individual elements it was estimated that one tinned herring (with a weight of 170g) could provide to the consumer's organism more than 50% of daily demand for calcium and phosphorus, 50% of required iodine, up to 40% of required selenium and fully meet the organism demand for fluorine. Furthermore it provides in approx. 20% of daily demand for magnesium, potassium, zinc and iron. It was found out that all analyzed tinned sprat products contained low level of cadmium, lead, mercury, and arsenic, and did not pose any threat to human health.
Źródło:: Inżynieria Rolnicza; 2007, R. 11, nr 5 (93), 5 (93); 331-337
1429-7264
Pojawia się w:: Inżynieria Rolnicza
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Jakość i skład aminokwasowy białka ryb z Zalewu Wiślanego
Quality and amino acid composition of protein of fish from the Vistula Lagoon
Autorzy:: Polak-Juszczak, L.
Adamczyk, M.
Powiązania:: https://bibliotekanauki.pl/articles/826716.pdf
Data publikacji:: 2009
Wydawca:: Polskie Towarzystwo Technologów Żywności
Tematy:: histydyna
Zalew Wislany
bialka zwierzece
bialko
cysteina
izoleucyna
jakosc
lizyna
metionina
mieso ryb
ryby
sklad aminokwasowy
sklad chemiczny
wartosc odzywcza
Opis:: Celem pracy była ocena ilości i jakości białka oraz aminokwasów zawartych w rybach z Zalewu Wiślanego. Badaniami objęto gatunki ryb (węgorz, śledź, leszcz, sandacz, płoć i okoń) najliczniej poławianych w tym akwenie. Określono podstawowy skład chemiczny mięsa ryb (zawartość białka, tłuszczu, wody), strawność białka i skład aminokwasów. Badane ryby były rybami chudymi i średnio tłustymi (z wyjątkiem węgorza) i zawierały od 14,4 do 19,5 g/100 g białka wysoko strawnego (98,3 – 98,8 %). Białko badanych ryb, a szczególnie sandacza zawierało dużo aminokwasów egzogennych. W 100 g mięśni znajdowało się od 5,79 do 8,85 g tych niezbędnych dla organizmu związków. Wyniki badań wskazują, że 100 g mięsa każdego gatunku ryb z Zalewu Wiślanego pokrywa z nadmiarem dzienne zapotrzebowanie dorosłego człowieka na białko. Zawartość aminokwasów egzogennych występujących w mięsie ryb z Zalewu Wiślanego przewyższa ich ilość w białku wzorcowym. Świadczy to o wysokiej jakość białka ryb. W białku dominują aminokwasy; metionina i cysteina, lizyna, izoleucyna oraz histydyna. Ich zawartość w stosunku do białka wzorcowego wynosiła od 145,2 do 239,5 %.
The objective of the research was to assess the quantity and quality of protein and amino acids contained in fish from the Vistula Lagoon. The research covered the fish species (eel, herring, bream, pike- perch, roach, and perch) most frequently caught in this water basin. The basic chemical composition of fish meat (content of protein, lipids, and water) was determined as were the digestibility of protein and the composition of amino acids. The fish examined were lean and medium-fat (except for eel) and contained 14.4 to 19.5 g/100 g of highly digestible proteins (98.3 - 98.8 %). The protein of the fish tested, especially that of pikeperch, contained high amounts of exogenous amino acids. In 100 g of meat, there was 5.79 to 8.85 g of those elements appearing essential for organism. The research results show that 100 g of meat of each fish species from the Vistula Lagoon covers with excess the daily protein demand of the adults. The content of exogenous amino acids in the meat of fish from the Vistula Lagoon exceeds their quantity in the standard protein. This proves the high quality of fish protein. The predominant amino acids in the protein are methionine and cysteine, lysine, isoleucine, as well as histidine. Their content ranged from 145.2 to 239.5 % compared to the standard protein.
Źródło:: Żywność Nauka Technologia Jakość; 2009, 16, 3
1425-6959
Pojawia się w:: Żywność Nauka Technologia Jakość
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Organotropism of organic and inorganic mercury in fish from the Vistula Lagoon, Poland
Autorzy:: Polak-Juszczak, L.
Gora, A.
Powiązania:: https://bibliotekanauki.pl/articles/14326.pdf
Data publikacji:: 2019
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Źródło:: Journal of Elementology; 2019, 24, 2
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Macro- and microelements in eel (Anguilla anguilla) from the northern regions of Poland
Autorzy:: Polak-Juszczak, L.
Robak, S.
Powiązania:: https://bibliotekanauki.pl/articles/13595.pdf
Data publikacji:: 2015
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:: macroelement
microelement
eel
Anguilla anguilla
Northern Poland
Polska
Opis:: The abundance of the eel (Anguilla anguilla) in Europe has been on the decline in recent years, to the extent that this fish species is now considered to be threatened with extinction. Hence, the current implementation of the Eel Management Plan in Poland, whose aim is to restore w stocks of this fish. The main natural habitats of eel are the transitional waters of the Vistula and Szczecin lagoons and lakes in northern Poland. The eel is highly valued by many consumers for the taste and texture of its meat. The aim of the study was to determine differences in concentrations of macro- and microelements and toxic metals in muscles of the eel as a function of each specimen’s length, mass and the origin. The results of the study also served an evaluation of the health benefits and risks to consumers of eel meat with regard to the content of macro- and microelements and toxic metals. Specimens of the eel (Anguilla anguilla) were caught in 2011-2013, in five regions of Poland: the southern Baltic, inland lakes in northeast Poland, the Vistula and Szczecin lagoons, and in the Vistula River. The concentrations of Ca, P, Mg, Na, K, Fe, Sr, Zn and As were determined with optical emission spectrometry. The flameless atomic absorption spectrometry method was used to measure concentrations of Cu, Cd and Pb. The content of Hg and Se were determined with atomic absorption, those of mercury with cold vapour, and of selenium with hydride generation. The concentrations of macro- and microelements in most instances, with the exception of P and Zn, were negatively correlated with the eel’s length and mass, which indicated that small fish contained more minerals than large specimens. The eel is a rich source of phosphorus, zinc, selenium and iron, and it can supply significant quantities of the daily requirements of human consumers for these minerals. The other minerals occurred in eel muscle at levels that ranged from 2 to 6% of human daily requirements. Among the toxic metals, mercury was the cause for concern, while cadmium and lead occurred at low levels in all of the specimens examined regardless of their size. The mean concentration of mercury ranged from 0.147 to 0.273 mg kg-1 and was positively correlated with specimen length and mass. The content of mercury in large eel exceeded 0.500 mg kg-1, while small eel (up to 70 cm) contained lower levels of mercury. Large eel exceeding 70 cm can pose a threat to the consumer’s health because of mercury, and especially its organic from of methylmercury. This is why consumers should limit long-term consumption of larger eel, while it is safe to consume smaller specimens since they contain less mercury and more minerals than do large eel.
Źródło:: Journal of Elementology; 2015, 20, 2
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Mineral content of muscle tissue of rainbow trout (Oncorhynchus mykiss Walbaum)
Autorzy:: Siemianowska, E.
Barszcz, A.A.
Skibniewska, K.A.
Markowska, A.
Polak-Juszczak, L.
Zakrzewski, J.
Wozniak, M.
Szarek, J.
Dzwolak, W.
Powiązania:: https://bibliotekanauki.pl/articles/13811.pdf
Data publikacji:: 2016
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:: Fish are most often considered as a rich source of valuable fat, although sometimes the high quality of fish meat protein is also emphasized, but there is comparably little information on the mineral composition of fish meat. Chemical composition, caloric value and health safety of fish as food depend on many factors, of which the rearing conditions are most influential. Aside from environmental conditions, production technology is a major determinant of the quality and nutritional value of trout. In this study, the influence of a farming technology on the content of minerals in the muscle tissue of rainbow trout (Oncorhynchus mykiss Walbaum) netted in various Polish regions has been assessed. Fish were caught in autumn 2010 and 2011 and spring 2011, at 3 farms with a water flow-through system and 3 farms with water recirculation. The trout muscle tissue contained: 188.4 - 518.4 mg kg-1 of calcium, 306.9 - 338.1 mg kg-1 of magnesium, 464.0 - 718.2 mg kg-1 of sodium, 4.5 - 6.9 mg kg-1 of zinc, 2485.7 - 2823.6 mg kg-1 of phosphorous, 4261.2 - 4615.4 mg kg-1 of potassium, 3.0 - 9.4 mg kg-1 of iron and 0.09 – 11.74 mg kg-1 of copper. The farming technology influenced the content of calcium, sodium, zinc, iron and copper but had no effect on the content of magnesium, phosphorous and potassium in rainbow trout muscle tissue. Trout farmed in water recirculation systems contained higher amounts of most elements than the fish reared in water flow-through systems. The season of sample collection (date of netting) also affected the content of sodium, zinc, phosphorus, iron and copper. The fish farming site (localization of the farm) determined the content of most of the minerals except magnesium. Rainbow trout is a good source of phosphorous and potassium in a human diet, significantly covering the daily demand for the elements.
Źródło:: Journal of Elementology; 2016, 21, 3
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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