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Wyszukujesz frazę "Cygan-Szczegielniak, D." wg kryterium: Autor


Wyświetlanie 1-5 z 5
Tytuł:
Wpływ wieku i płci saren na kruchość oraz inne cechy jakości mięśnia Longissimus lumborum
Effect of age and sex of roe deer on tenderness and other quality characteristics of Longissimus lumborum muscle
Autorzy:
Cygan-Szczegielniak, D.
Janicki, B.
Powiązania:
https://bibliotekanauki.pl/articles/827833.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Technologów Żywności
Opis:
Kruchość jest jedną z najważniejszych cech jakości mięsa, a jej wartość zależy od rodzaju włókien mięśniowych, ilości i typu tkanki łącznej oraz od innych czynników, takich jak: wiek i płeć zwierząt. Celem pracy była ocena wpływu wieku i płci saren na kruchość oraz inne cechy jakości ich mięsa. Badania przeprowadzono na mięśniu longissimus lumborum (LL). Najwyższą kruchością, a zarazem najniższą wartością siły cięcia (20,37 N/cm) charakteryzowało się mięso 2 ÷ 3-letnich kóz. Najniższą zaś kruchością charakteryzowało się mięso 2 ÷ 3-letnich kozłów (38,2 N/cm). Kwasowość mięsa osiągnęła zbliżone wartości we wszystkich badanych grupach: pH₂₄ wynosiło od 5,53 do 5,57, a pH₄₈ od 5,40 do 5,46. Wodochłonność mięsa kóz była większa, a równocześnie mniejsza była w nim zawartość wody wolnej tj. od 18,96 % w mięsie 2 ÷ 3-letnich zwierząt do 19,54 % w mięsie osobników 4 ÷ 5-letnich. W przypadku kozłów zawartość wody wolnej w mięsie 2 ÷ 3-letnich samców wynosiła 20,74 %, a w mięsie osobników najstarszych (6 ÷ 7-letnich) 22,43 %. Uzyskane wyniki wskazują na zróżnicowanie wartości niektórych cech pomiędzy rozpatrywanymi grupami. Ponadto stwierdzono dodatnią zależność pomiędzy wodochłonnością a kruchością mięsa (r = 0,54; p < 0,05).
Tenderness is one of the most important characteristics of meat quality and its value depends on the muscle fibre types, amount and type of connective tissue, as well as many on other factors, such as age and sex of animals. The objective of the research study was to assess the effect of age and sex of roe deer on tenderness and other quality characteristics of their meat. The research was conducted on a m. longissimus lumborum muscle (LL). The meat of 2 to 3-year-old does was characterized by the highest level of tenderness, and, at the same time, by the lowest cutting force value (20.37 [N/ cm]. The meat of 2 to 3-year-old bucks was characterized by the lowest tenderness level (38.2 [N/cm]. The acidity of meat reached similar values in all groups analyzed: pH₂₄ was between 5.53 to 5.57, and pH₄₈ between 5.4 and 5.46. The water holding capacity of does’ meet was higher, and, at the same time, the free water content therein was lower, i.e. from 18.96 % in the meat of 2–to–3 year old animals to 19.54 % in 4-to-5-year-old specimens. As for the bucks, the free water content in the meat of 2-to-3-year old male deer was 20.74 % and 22.43 % in the meat of the oldest specimens (6-to-7-year old). The results obtained prove that variations exist in the values of some characteristics in the groups under research. Moreover, a positive dependence was found between the water holding capacity and tenderness of meat (r = 0.54; p < 0.05).
Źródło:
Żywność Nauka Technologia Jakość; 2012, 19, 6
1425-6959
Pojawia się w:
Żywność Nauka Technologia Jakość
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Amino acids content and basic chemical composition of roe deer (Capreolus capreolus L.) meat
Autorzy:
Cygan-Szczegielniak, D.
Janicki, B.
Powiązania:
https://bibliotekanauki.pl/articles/31855.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
The aim of this study was to determine the chemical composition of roe deer meat considering the animals’ sex and age and to estimate the content of amino acids in the meat from two selected groups of the animals, i.e. 2-3-year-old males and females. A further goal was to assess the biological value of proteins as compared to the FAO standard. The study has revealed that in proteins from the roe deer muscle tissue the content of exogenous amino acids (in g/100g) is higher by 20-30% on average comparing to the level of amino acids, in the FAO/WHO (1973) standard protein. Among the endogenous amino acids, the highest (in g/100 g of protein) and the lowest concentrations were found for glutamic acid and proline, respectively. The research has also shown that roe deer meat possesses a high content of protein and a relatively low content of fat.
Źródło:
Polish Journal of Veterinary Sciences; 2012, 15, 4
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The content of selected minerals determined in the liver, kidney and meat of pigs
Autorzy:
Stasiak, K.
Roślewska, A.
Stanek, M.
Cygan-Szczegielniak, D.
Janicki, B.
Powiązania:
https://bibliotekanauki.pl/articles/962645.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:
The aim of the study was to determine the chemical composition of pig meat, liver and kidney in terms of mineral elements, and to establish the relationships between selected macro- and microelements. Twenty organically raised pigs [Złotnicka Spotted and F1 (Polish Large White × Polish Landrace)] were investigated. At the end of fattening (100-108 kg of body weight), the animals were slaughtered and the following tissues and organs were sampled from each pig: muscle longissimus lumborum, liver, and kidney. The samples were freeze-dried and digested in an Ethos Plus microwave system. Mineral content of the prepared samples was determined by means of a Unicam Solar 969 atomic absorption spectrometer. Longissimus lumborum muscle proved to be rich in macroelements as 1 kg of fresh tissue was found to contain as much as 282.34 mg magnesium, 3 668.41 mg potassium and 329.35 sodium. Among the analysed microelements (Zn, Cu, Mn and Fe), the presence of only zinc and iron (16.13 and 0.02 mg kg-1 of fresh tissue, respectively) was detected in the muscles. Liver samples were characterised by the highest levels of Zn (64.09 mg kg-1), Mn (3.37 mg kg-1) and Fe (0.48 mg kg-1). The mean content of Cu in 1 kg of fresh tissue did not exceed 7.42 mg. The macroelements determined were Mg (180.89 mg kg-1), K (3 082.04 mg kg-1) and Na (744.25 mg kg-1). Kidneys were most abundant in Cu (9.52 mg kg-1) and Na (1 404.08 mg kg-1). In addition, they also contained zinc (24.62 mg kg-1), manganese (2.25 mg kg-1), iron (0.11 mg kg-1), magnesium (202.14 mg kg-1) and potassium (2 541.63 mg kg-1).
Źródło:
Journal of Elementology; 2017, 22, 4
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of the sex and age on the content of selected minerals in the meat of ruffe (Gymnocephalus cernua L.) from the Vistula River, Poland
Autorzy:
Stanek, M.
Dąbrowski, J.
Cygan-Szczegielniak, D.
Roślewska, A.
Stasiak, K.
Janicki, B.
Powiązania:
https://bibliotekanauki.pl/articles/962630.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:
The aim of this study was to determine concentrations of Na, K, Mg, Ca, P, Zn and Fe in the meat of ruffe (Gymnocephalus cernua L.) and to investigate the relationship between fish sex or age and the mineral content of fish meat. 90 individuals of ruffe were caught in autumn (from October 9 to November 6) from the Vistula River, near Toruń and he local wastewater treatment plant. The muscle tissues from the large side muscle in a fish body, above the lateral line, were taken for analyses. All frozen meat samples were freeze dried in a freeze dryer and then tissues were mineralized in a microwave mineralizer. Concentrations of minerals were determined by flame atomic absorption spectroscopy. As the analyses indicated, the concentrations of macroelements were arranged in the order: K > Ca > P > Na > Mg and the content of microelements was noted in the following decreasing sequence: Zn > Fe. The ranges of the mean concentrations of Na, K, Mg, Ca and P (g kg-1) were as follows: from 2.38 to 2.68, from 14.74 to 16.16, from 1.47 to 1.60, from 5.63 to 8.06, from 2.18 to 3.59, respectively. The ranges of the mean concentration of microelements (mg kg-1) were from 49 to 74 for Zn and from 26 to 29 for Fe. Statistically significant relationships between the age and the macro- and microelement concentrations were verified, and this tendency was comparable to the data obtained by other authors. Results of these studies showed that the sex of ruffe was not an important factor for the levels of macro- and microelements in this species.
Źródło:
Journal of Elementology; 2017, 22, 4
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of sex on the content of elements in meat from wild boars (Sus scrofa L.) originating from the Province of Podkarpacie (south-eastern Poland)
Autorzy:
Roslewska, A.
Stanek, M.
Janicki, B.
Cygan-Szczegielniak, D.
Stasiak, K.
Buzala, M.
Powiązania:
https://bibliotekanauki.pl/articles/14607.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:
The aim of the study was to determine concentrations of some elements, incluing minerals and heavy metals (Na, K, Mg, Zn, Fe, Cu, Cd, Pb), in the meat (musculus longissimus dorsi) of the wild boar (Sus scrofa L.) depending on the sex of the animals. The wild boars were shot during the hunting 2011-2012 season, in the Province of Podkarpacie (województwo podkarpackie), Poland. Podkarpacie, situated in south-eastern Poland, is known for its variety of wildlife living in natural habitat. The study involved 16 animals (8 of each sex) aged 2 years. Meat samples were freeze-dried (Lyovac GT2, Finn-Aqua) and then mineralised in a microwave mineraliser (Ethos Plus, Milestone). Samples prepared in this way were later analysed for the concentration of minerals, using various techniques. The content of heavy metals (Cd and Pb) was determined by atomic emission spectroscopy, while the levels of other elements (Na, K, Mg, Zn, Fe and Cu) were assayed using an atomic absorption spectrometer. The analyses indicated no significant statistical differences between males and females in the quantity of most metals in their bodies, except copper (Cu), whose average amount was higher in meat samples from females (7.5 mg kg-1) than from males (6.15 mg kg-1) (p ≤ 0.01). The determinations of heavy metals revealed that the average lead (Pb) concentration exceeded the acceptable limit only in meat samples from males (0.13 mg kg-1). When examining the levels of minerals in wild boar meat, a positive and statistically significant correlation was found only between the average quantities of K and Mg.
Źródło:
Journal of Elementology; 2016, 21, 3
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-5 z 5

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