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Tytuł:
Dietary acrylamide exposure from traditional food products in Lesser Poland and associated risk assessment
Autorzy:
Cieślik, I.
Cieslik, E.
Topolska, K.
Surma, M.
Powiązania:
https://bibliotekanauki.pl/articles/2085562.pdf
Data publikacji:
2020
Wydawca:
Instytut Medycyny Wsi
Tematy:
acrylamide (AA)
traditional food
GC-MS
dietary exposure
risk assessment
Opis:
Introduction and objective. Acrylamide (AA) is a carcinogenic and genotoxic food contaminant occurring in carbohydrate-rich foods produced at high cooking temperatures. The aim of the study was to determine the importance of AA exposure with respect to traditional food and to assess the associated risks. Materials and method. 165 food samples were collected from local markets in Lesser Poland. The participants enrolled in the study were 500 residents: (males – 179, females – 321) who had purchased food from local markets. Exposure of the participants to AA was assessed by combining the analytical AA results with data on the individual consumption of traditional foods. Risk assessment of AA exposure from traditional foods was estimated and the margin of exposure (MOE) values were calculated. Results. The highest mean AA level was measured in pretzels (92 µg kg−1), followed by bagels (74.81 µg kg−1) and pork paté (59.56 µg kg−1). The average and 95th percentile values of AA exposure were 0.213 and 0.458 [µg kg−1 body weight (BW) day−1]. The calculated values of MOE for the average [798 and 2,019 for both benchmark dose lower confidence limit (BMDL) 0.17 and 0.43 mg kg−1 BW day−1] and 95th percentile AA exposure values (371 and 939 for both BMDL 0.17and 0.43 mg kg−1 BW day−1) suggest that there is a health concern with respect to adult residents. Conclusions. The results of the study confirm the general recommendation to the consumers, especially certain population groups, to eat a balanced healthy diet and to limit the amount of baked cereal products and fried products.
Źródło:
Annals of Agricultural and Environmental Medicine; 2020, 27, 2; 225-230
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of energy management strategies for hybrid electric vehicles in urban driving conditions
Autorzy:
Pielecha, I.
Cieślik, W.
Fluder, K.
Powiązania:
https://bibliotekanauki.pl/articles/134210.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
hybrid electric vehicles
energy management
electric range
real driving conditions
samochody hybrydowe
zarządzanie energią
zasięg elektryczny
rzeczywiste warunki jazdy
Opis:
The pursuit of fuel consumption reduction by vehicles leads to a sudden increase in the share of hybrid and electric drives in the vehicle market. Replacing hybrid vehicles with electric vehicles requires long-term technological solutions, both for the infrastructure and the vehicles themselves. Therefore, one of the leading types of passenger car drives is currently the hybrid drive. The generated work share of electric drives used to power hybrid vehicles is a determinant of the viability of using electric drives. The article estimates the operating time share of electric and hybrid modes operation in real driving conditions (RDC) based on the latest Toyota hybrid model. The research object was a vehicle from the crossover group equipped with a fourth generation hybrid drive. Analysis of the drive's operation allowed to determine the conditions of energy flow and determine the work share of the electric drive in the total driving time.
Źródło:
Combustion Engines; 2018, 57, 2; 14-18
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Changes in the content of heavy metals (Pb, Cd, Hg, As, Ni, Cr) in freshwater fish after processing – the consumers exposure
Autorzy:
Cieslik, I.
Migdal, W.
Topolska, K.
Gambus, F.
Cieslik, E.
Powiązania:
https://bibliotekanauki.pl/articles/14157.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Źródło:
Journal of Elementology; 2018, 23, 1
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of mixture swirl in the cylinder chamber in a conceptual system with combustion surrounded by inactive gases
Autorzy:
Cieślik, W.
Pielecha, I.
Powiązania:
https://bibliotekanauki.pl/articles/133497.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
rapid compression machine
schlieren photography
advance combustion management
particle image velocimetry
maszyny pojedynczego cyklu
zaawansowane zarządzanie spalaniem
Opis:
Internal combustion engines have seen a reduction of the dynamics of their efficiency growth in recent years. All kinds of new modifications and changes introduced in this field can only manage changes of engine efficiency at the level of a fraction of a percent. Considering the concept of unification of SI and CI internal combustion engine structures, one can expect to see their efficiency increase by the reduction of losses, whose causes and occurrence is commonly known. The improvement of the combustion system is mainly related to the reduction of thermal losses generated in this process. Therefore, the current issue is the advanced analysis of any possibilities of improving the combustion conditions and more fully understanding the processes that accompany them. The authors of the article see such a possibility in the conceptual control of the combustion process, which aims to obtain a combustible mixture surrounded by nonflammable gases. This way the flame contact with the cylinder walls is limited, which should in turn contribute to reducing the heat exchange with the walls. This research is a continuation of previous research work; current work focuses on determining the actual distribution of gases in the combustion chamber using the advanced shadow photography method. The article specifies the effect of nonflammable gas injection pressure increase on the area of the boundary layer formed between the non-flammable gases and cylinder walls.
Źródło:
Combustion Engines; 2018, 57, 4; 40-47
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Knowledge of neurologists and gynaecologists regarding reproductive and maternity issues in women with epilepsy
Autorzy:
Janos, I.
Cieslik, A.
Wanot, J.
Sejboth, J.
Szurlej, D.
Gurowiec, P.
Powiązania:
https://bibliotekanauki.pl/articles/1802.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Opolski. Instytut Nauk o Zdrowiu
Opis:
Background: Epilepsy is one of the most common neurological disorders, with more than 400,000 individuals in Poland (about 1% of the population) affected. Epilepsy complicates approximately 0.5% of pregnancies. Aim of the study: To determine the level of knowledge that neurologists and gynaecologists have about reproductive and maternity issues for women with epilepsy. Material and methods: This study included 141 neurologists and physicians undergoing specialist training in neurology as well as 72 gynaecologists and physicians undergoing specialist training in gynaecology. A validated questionnaire was used to survey these neurologists and gynaecologists, who worked in Silesia Province. Results: In the group of physicians advising on contraception, significantly (p = 0.003) more gynaecologists than neurologists recommended hormonal birth control. Significantly more (p = 0.031) neurologists than gynaecologists believed that monotherapy with antiepileptic medications should be aimed for before a planned pregnancy in women with epilepsy. More than a half of the surveyed physicians (56.8%) believed that pregnant women with epilepsy can have a natural delivery. Conclusions: On the basis of these results, we have concluded that gynaecologists and, to a lesser extent, neurologists should have more extensive knowledge regarding reproductive and maternity issues for women with epilepsy. We further propose that close collaboration between neurologists and gynaecologists in the care of epileptic women is necessary.
Źródło:
Medical Science Pulse; 2018, 12, 3
2544-1558
2544-1620
Pojawia się w:
Medical Science Pulse
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Microbiological analysis of bioaerosols collected from Hospital Emergency Departments and ambulances
Autorzy:
Bielawska-Drózd, A.
Cieślik, P.
Bohacz, J.
Kornillowicz-Kowalska, T.
Żakowska, D.
Bartoszcze, M.
Wlizło-Skowronek, B.
Winnicka, I.
Brytan, M.
Kubiak, L.
Skopińska-Różewska, E.
Kocik, J.
Powiązania:
https://bibliotekanauki.pl/articles/2081735.pdf
Data publikacji:
2018
Wydawca:
Instytut Medycyny Wsi
Tematy:
Button Sampler
bioaerosol
Hospital Emergency Departments
ambulances
bacteria
fungi
Opis:
Introduction and objective. The goal of the study was a microbiological, qualitative and quantitative analysis of bioaerosol at the workplace of medical personnel (Health Emergency Departments (HEDs), ambulances), and comparative administration offices with an expected neutral occupational exposure to biological agents measured with individual Button Sampler. Materials and method. Personal sampling was performed with Button Sampler instrument loaded with gelatine filters in 10 HEDs, in 9 ambulances and in 9 offices to assess the occupational biological agents’ exposure in air. Sampling was conducted from March until April 2016. Samples were quantitatively assessed for viable and total number of bacteria and fungi. Routine procedures for microbiological diagnostics were implemented. Data were analysed using Kruskal–Wallis and Mann-Whitney statistical tests with α=0.05. P value less than 0.05 were considered significant. Results. At the workplaces assessed, the concentrations of viable microorganisms in HEDs were 1.3 × 102 – 4.2 × 103 CFU/m3 for bacteria, 3.4 × 100 – 8.1 × 101 CFU/m3 for fungi; in ambulances 1.3 × 102 – 1.4 × 103 CFU/m3 (bacteria), 6.7 × 100 – 6.5 × 102 CFU/m3 (fungi) and in offices 4.2 × 101 – 5.0 × 103 CFU/m3 (bacteria), 0 – 7.9 × 102 CFU/m3 (fungi). In outdoor air, the number of microorganisms reached the level: 1.0 × 102 – 5.9 × 102 CFU/m3 for bacteria and 1.5 × 102 – 8.2 × 102 CFU/m3 for fungi. The predominant isolated bacteria were Gram-positive cocci. The prevalent fungi species belonged to the genus Aspergillus and Penicillium. Conclusions. The quantitative assessment of examined indoor air was similar to control outdoor air, and were relatively low. The level of microbiological contamination did not exceed 5 × 103 CFU/m3 which is recommended as an admissible level in public spaces in Poland.
Źródło:
Annals of Agricultural and Environmental Medicine; 2018, 25, 2; 274-279
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena spożycia owoców i warzyw przez dzieci uczęszczające do żłobków na terenie Zakopanego
Assessment of fruit and vegetables consumption by children in créches in Zakopane
Autorzy:
Mentel, I.
Cieslik, E.
Cieslik, I.
König, I.
Powiązania:
https://bibliotekanauki.pl/articles/827567.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Technologów Żywności
Tematy:
Zakopane
zywienie czlowieka
zywienie zbiorowe
zywienie racjonalne
dzieci
okres poniemowlecy
zlobki
racje pokarmowe
spozycie owocow
spozycie warzyw
czestotliwosc spozycia
badania ankietowe
Opis:
Celem pracy była ocena częstotliwości spożycia owoców i warzyw przez dzieci w wieku 1 - 3 lat na podstawie wyników badań ankietowych przeprowadzonych wśród matek tych dzieci. W kwestionariuszu zawarto pytania dotyczące częstotliwości spożycia owoców i warzyw, a także wiedzy na temat właściwego odżywienia małych dzieci pod względem podawania im tych produktów. Badania ankietowe przeprowadzono wśród 300 matek chłopców i dziewczynek w wieku 1 - 3 lat w kilku żłobkach na terenie Zakopanego. Uzyskane wyniki poddano analizie statystycznej testem χ² (Pearsona). Jak wskazały respondentki, aż 93 % matek biorących udział w badaniu interesowało się zasadami zdrowego żywienia dotyczącymi spożycia owoców i warzyw przez dzieci. Spośród dzieci uczęszczających do żłobków na terenie Zakopanego (zgodnie z deklaracją ankietowanych) 85 % chętnie spożywało owoce i warzywa, a do ulubionych należały: jabłka, banany, truskawki oraz pomidory, marchew i ogórki. Według niespełna 30 % respondentek dzieci spożywały owoce i warzywa 2 - 3 razy dziennie, natomiast ok. 20 % ankietowanych zadeklarowało, że ich dzieci konsumują tego typu produkty tylko raz dziennie. Zdecydowana większość matek podawała owoce zamiast słodyczy. Zaobserwowano, że wraz ze wzrostem poziomu wykształcenia tendencja ta miała charakter rosnący. Mamy zachęcały dzieci do jedzenia owoców i warzyw najczęściej przez wspólną konsumpcję oraz zabawę. Jak deklarowały ankietowane, ponad połowa dzieci spożywała głównie owoce i warzywa w stanie surowym, rzadziej gotowane i smażone. Ponadto kobiety serwowały dzieciom różnego typu soki owocowe i warzywne.
The objective of the research study was to assess the consumption frequency of fruit and vegetables by children aged 1-3 on the basis of the results of questionnaire survey conducted amongst the mothers of those children. The questionnaire comprised the questions on the consumption frequency of fruit and vegetables as well as on the knowledge of how to properly feed small children in terms of providing them with fruit and vegetables. The questionnaire survey was conducted amongst 300 mothers of the boys and girls aged 1 - 3 in several crèches in Zakopane. The results obtained were statistically analysed using χ2 Pearson test. It was found that 93 % of the responding mothers were interested in the principles of healthy eating in terms of fruit and vegetable consumption by children. Of all the children attending crèches in Zakopane (according to the statements made by the surveyed) 85 % eagerly ate fruit and vegetables; apples, bananas, raspberries, and tomatoes, carrots, and cucumbers were their favourite fruits. Almost 30 % of the respondents declared that their children ate fruit and vegetables 2 - 3 times a day, whereas 20 % of the mothers surveyed declared that their children ate that type of products only once a day. The vast majority of the mothers provided their kids with fruit instead of sweets. It was found that this tendency increased with the increasing level of mothers’ education. The mothers encouraged their children to eat fruits and vegetables through games or eating in the company of other kids. As declared by the mothers, over half of the children consumed mainly raw fruit and vegetables and rarely the cooked and/or fried fruits and vegetables. Also, the women surveyed provided their children with different types of fruit and vegetable juices.
Źródło:
Żywność Nauka Technologia Jakość; 2018, 25, 2
1425-6959
Pojawia się w:
Żywność Nauka Technologia Jakość
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Operation of electric hybrid drive systems in varied driving conditions
Eksploatacja elektrycznych układów napędowych pojazdów hybrydowych w zróżnicowanych warunkach ruchu
Autorzy:
Pielecha, I.
Cieślik, W.
Szałek, A.
Powiązania:
https://bibliotekanauki.pl/articles/1365373.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:
electric motor
current generator
hybrid drive
voltage boost
energy flow
high voltage battery
silnik elektryczny
generator prądu
napęd hybrydowy
wzmocnienie napięcia
przepływ energii
akumulator wysokonapięciowy
Opis:
Hybrid vehicles allow an increase in the powertrain efficiency thanks to their design. One such factor is the use of increased voltage supplying electric motors to the voltage supplying the high voltage battery. The battery voltage is increased several times in the inverter (boost) system to increase the final electric power supplied to the electric motor. The article presents the possibilities of using such a voltage boost in urban and non-urban driving conditions. The tests were performed on the latest generations of parallel hybrid drive systems in Lexus NX 300h and Toyota RAV4 hybrid vehicles. It has been shown that the boost system is used in about 30–40% of the urban drive distance (up to 20% of the driving time). The power supply voltage boost of the electric motors of both vehicles is used throughout the entire engine speed range of these machines at high torque values. Research has shown that the maximum voltage gain – approximately three times (up to 650 V) – is within the maximum torque range of the electric motors and allows for doubling the torque generated by the drive.
Pojazdy z napędem hybrydowym dzięki swojej konstrukcji, pozwalają na zwiększenie sprawności układu napędowego. Jednym z takich czynników jest stosowanie zwiększonego napięcia zasilającego silniki elektryczne w stosunku do napięcia zasilającego akumulator wysokonapięciowy. Napięcie akumulatora zostaje zwiększone kilkukrotnie w układzie inwertera (boost) w celu zwiększenia końcowej mocy elektrycznej doprowadzonej do silnika elektrycznego. W artykule przedstawiono możliwości wykorzystania takiego wzmocnienia napięcia w warunkach jazdy miejskiej i pozamiejskiej. W badaniach wykorzystano najnowsze generacje układów napędu hybrydowego równoległego w pojazdach Lexus NX 300h oraz Toyota RAV4 hybrid. Wykazano, że układ wzmocnienia napięcia w warunkach miejskich wykorzystany jest w około 30–40% dystansu (do 20% czasu jazdy). Wzmocnienie napięcia zasilającego maszyny elektryczne obu pojazdów wykorzystane jest w całym zakresie prędkości obrotowej tych maszyn przy dużych wartościach momentu obrotowego. Badania wykazały, że maksymalne wzmocnienie napięcia – około trzykrotne (do wartości 650 V) – występuje w zakresie maksymalnego momentu obrotowego silników elektrycznych i pozwala na ponad 2-krotne zwiększenie generowanego momentu obrotowego układu napędowego.
Źródło:
Eksploatacja i Niezawodność; 2018, 20, 1; 16-23
1507-2711
Pojawia się w:
Eksploatacja i Niezawodność
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The impact of drive mode of a hybrid drive system on the energy flow indicators in the RDE test
Autorzy:
Fluder, K.
Pielecha, I.
Cieślik, W.
Powiązania:
https://bibliotekanauki.pl/articles/133194.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
hybrid electric vehicles
energy management
electric range
real driving conditions
real driving emissions test
samochody hybrydowe
zarządzanie energią
zasięg elektryczny
rzeczywiste warunki jazdy
test rzeczywistej emisji cząstek
Opis:
The drive to reduce fuel consumption of vehicles equipped with internal combustion engines leads to an increasing share of hybrid drives used in various means of transport. Such hybrid vehicles, thanks to the use of diesel-electric drive systems, allow for a fuel consumption reduction, and thus to reduce the carbon dioxide emissions. This fuel consumption reduction results from a specifically selected energy flow strategy in hybrid systems. This strategy was the focus of the research performed in order to identify the energy flow conditions in a hybrid drive system in driving conditions corresponding to the RDE test. A Lexus LS 500h vehicle was tested in two drive modes, while determining the related energy flow conditions, including the operating conditions of: electric motors, internal combustion engine and battery. Energy balance was determined taking into account the high voltage battery discharge and charging energy as well as the energy recovered during regenerative braking. It was found that in the RDE test conditions the vehicle is in electric mode for over 30% of the distance and 35% of the drive time, with the energy balance of the vehicle being positive (SOCend > SOCstart). Additionally, it was pointed out that the time spent in the electric mode when driving in urban conditions is about 50% and decreases to about 15% for highway conditions.
Źródło:
Combustion Engines; 2018, 57, 4; 18-25
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The use of electric drive in urban driving conditions using a hydrogen powered vehicle - Toyota Mirai
Autorzy:
Pielecha, I.
Cieślik, W.
Szałek, A.
Powiązania:
https://bibliotekanauki.pl/articles/132950.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
fuel cell
HEV vehicle
hybrid electric vehicle
hydrogen fuel
ogniwo paliwowe
napęd hybrydowy
paliwo wodorowe
Opis:
Vehicles with electric propulsion systems are increasingly more often equipped with solutions that improve their drive system’s efficiency. The latest vehicle model with a fuel cell hybrid system – Toyota Mirai was used in this experiment. The design of this vehicle is similar to that of hybrid vehicles in many aspects. However, new fuel cell technologies are being developed for automotive use, including compressed hydrogen tanks and control systems. The article presents an analysis of a fuel cell operation during vehicle start-up and driving, with particular emphasis on the hydrogen injection strategy of the three fuel injectors used in the fuel cell. The fuel cell interaction with the high-voltage battery has also been characterized. It has been shown that increase in the electrical supply voltage of the vehicle’s electric motor can be observed at high torque values of the electric motor. The maximum voltage gain – approximately three times (up to about 650 V) – allows for double the torque of the drive system compared to the standard value.
Źródło:
Combustion Engines; 2018, 57, 1; 51-58
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of the possibilities to achieve adiabatization process of combustion surrounded by inactive gases in Rapid Compression Machine
Autorzy:
Cieślik, W.
Pielecha, I.
Powiązania:
https://bibliotekanauki.pl/articles/134132.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
exhaust gas recirculation
inactive gases
combustion fuels
recyrkulacja spalin
nieaktywne gazy
spalanie paliw
Opis:
In this work non-combustible gases impact on combustion processes studies is performed. Research was performed in a optically accessible rapid compression machine (RCM) under spark ignition engine conditions. The distribution of the swirl charge in the relation to adopted for analysis sequence of gas delivery to the chamber was varied with regard to the main injection. Authors investigate the influence of these sequence on the combustion and the ignition delay of the main injection and the overall combustion characteristics. The aim of this work is the experimental recognition of possibilities of creating combustible mixtures of light hydrocarbon fuels surrounded by non-combustible gases affecting the function of the inhibitor. Specifying the ability of preparation and combustion of mixtures in such systems enables the scientifl analysis of adiabatization of the combustion process of fuel-air mixtures in the operating chambers. Theoretical analysis of the issues indicates possibility of obtaining such a stratification of the charge, that the inactive exhaust gases creating the outer ring surround the combustible mixture inside in such a way as to reduce the amount of heat exchanged between the working medium and the walls of the cylinder.
Źródło:
Combustion Engines; 2017, 56, 1; 27-31
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Changes in macro- and microelements in freshwater fish during food processing
Autorzy:
Cieślik, I.
Migdał, W.
Topolska, K.
Gambuś, F.
Szczurowska, K.
Cieślik, E.
Powiązania:
https://bibliotekanauki.pl/articles/961455.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:
Fish meat is a valuable dietary component owing its exceptionally high nutritional value, as it contains high quality protein, fat (including n-3 acids) and a variety of vitamins and minerals. The aim of this study was to determine the content of ash and minerals (macro- and microelements) in three freshwater fish species, and quantitative changes in smoked and marinated products. The research material originated from three species, i.e. common carp (Cyprinus carpio), rainbow trout (Oncorhynchus mykkis) and northern pike (Esox lucius). The following parameters were determined in samples of raw as well as processed fish meat: ash (using the gravimetric method, according to PN-ISO 936:2000) and the minerals Na, K, Ca, Mg, P, Fe, Zn, Mn, Cu (using inductively coupled plasma optical emission spectrometry ICP-OES). The statistical analysis of the results did not show significant differences in the ash content in meat of the three fish species. The ash content in processed fish meat differed significantly from that in raw fish, thus indicating changes in concentrations of the minerals. The differences depended on the applied processing technology. As for the mineral content, the examined fish species achieved high nutritional quality, with the highest content of magnesium, iron and zinc in common carp, potassium and phosphorus in rainbow trout and calcium in pike. The levels of the minerals in processed fish meat differed significantly from those in the raw material, especially in carp products (higher amounts of almost all the determined elements). Smoking as well as marinating resulted in a considerable increase in the sodium contet, and the highest values were obtained for marinated rainbow trout. Monitoring the content of macro- and microelements in fish meat is important for the consumer.
Źródło:
Journal of Elementology; 2017, 22, 2
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Charakterystyka właściwości prozdrowotnych glukozynolanów
Characterisctics of healthy properties of glucosilates
Autorzy:
Cieslik, E.
Cieslik, I.
Borowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/809912.pdf
Data publikacji:
2017
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Opis:
Warzywa kapustowate ze względu na właściwości antykancerogenne zawartych w nich glukozynolanów stały się przedmiotem wielu badań. W pracy przedstawiono informacje na temat występowania, budowy i właściwości prozdrowotnych glukozynolanów oraz ich roli w żywieniu i prewencji chorób nowotworowych. Scharakteryzowano zawartości tych bioaktywnych związków w różnych warzywach kapustowatych oraz ich pobieranie z dietą przeciętnego Polaka. Zaprezentowano strukturę i charakterystykę chemiczną oraz metabolizm glukozynolanów i ich pochodnych. Ponadto przybliżono działania prozdrowotne tych wtórnych metabolitów roślin z rodziny krzyżowych, zwracając szczególną uwagę na ich właściwości przeciwutleniające i przeciwnowotworowe. Glukozynolany zawarte w roślinach jadalnych, dostarczone do organizmu człowieka zarówno jako składnik diety, jak i wyizolowane związki chemiczne mogą zmniejszać ryzyko rozwoju nowotworów. Spożywanie ich może być więc jednym ze sposobów profilaktyki nowotworowej, a dobór odpowiedniej strategii profilaktycznej powinien zależeć od typu nowotworu, rodzaju organu i uwarunkowań genetycznych.
The aim of the paper was to display the occurance, structure and pro-health properties of glucosinolates and their derivatives as well as their role in cancer prevention. The focus was made on the content of the biologically active compounds in cruciferous vegetables and their intake from Brassica in Poland. Subsequently the structure and chemical characteristics of glucosinolates were presented. Most consumed Brassica species in human nutrition are cabbage, red cabbage, savoy cabbage, cauliflower, broccoli, brussels sprouts, radish and rapeseed. The most important biologically active substances present in these plants are glucosinolates. Their concentration and relative proportions depend on the environmental conditions of cultivation and storage of plants which are soil fertility, temperature, hydration level, and the presence of pathogens and insects. There are more than 300 different compounds belonging to the glucosinolate known. They are characterized by similarities in structure, which is based on a β-D-tioglucose group, sulfonated oxime group and the side chain derived from one of the seven amino acid. The authors paid special attention to the antioxidant and anticancer properties of these compounds. These properties result from the presence of glucosinolates and associated enzyme – myrosinase. When the contact of these compounds occurs, it comes to the formation of isothiocyanates, indoles and other derivatives with high biological activity, which are essential in the prevention of cancer. Current research on the impact of purified or partially purified derivatives of glucosinolates show the impact of these substances on the development of cancer, and giving hope for the creation of effective chemopreventive measures. Given these data the sufficient consumption of brassica vegetables is important. In Poland, by far the most consumed is cabbage, although for many years the trend is downward. The share of other Brassica vegetables in the diet of Poles are much smaller. The total consumption of cruciferous plants decreases, which, due to their functional properties is not a good fenomenon. The substantions present in vegatables and other edible plants can reduce the risk of cancer. They exert its function as both taken with the diet as well as an isolated chemical compounds. Therefore, its consumption may be one of the ways of preventing cancer. The selection of appropriate treatment strategies should depend on tumor type, body type and genetics.
Źródło:
Zeszyty Problemowe Postępów Nauk Rolniczych; 2017, 588
0084-5477
Pojawia się w:
Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Changes in macro- and microelements in freshwater fish during food processing
Autorzy:
Cieślik, I.
Migdał, W.
Topolska, K.
Gambuś, F.
Szczurowska, K.
Cieślik, E.
Powiązania:
https://bibliotekanauki.pl/articles/1189834.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:
freshwater fish
smoking
marinating
macroelements
microelements
Opis:
Fish meat is a valuable dietary component owing its exceptionally high nutritional value, as it contains high quality protein, fat (including n-3 acids) and a variety of vitamins and minerals. The aim of this study was to determine the content of ash and minerals (macro- and microelements) in three freshwater fish species, and quantitative changes in smoked and marinated products. The research material originated from three species, i.e. common carp (Cyprinus carpio), rainbow trout (Oncorhynchus mykkis) and northern pike (Esox lucius). The following parameters were determined in samples of raw as well as processed fish meat: ash (using the gravimetric method, according to PN-ISO 936:2000) and the minerals Na, K, Ca, Mg, P, Fe, Zn, Mn, Cu (using inductively coupled plasma optical emission spectrometry ICP-OES). The statistical analysis of the results did not show significant differences in the ash content in meat of the three fish species. The ash content in processed fish meat differed significantly from that in raw fish, thus indicating changes in concentrations of the minerals. The differences depended on the applied processing technology. As for the mineral content, the examined fish species achieved high nutritional quality, with the highest content of magnesium, iron and zinc in common carp, potassium and phosphorus in rainbow trout and calcium in pike. The levels of the minerals in processed fish meat differed significantly from those in the raw material, especially in carp products (higher amounts of almost all the determined elements). Smoking as well as marinating resulted in a considerable increase in the sodium contet, and the highest values were obtained for marinated rainbow trout. Monitoring the content of macro- and microelements in fish meat is important for the consumer.
Źródło:
Journal of Elementology; 2017, 22, 2; 453-462
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of the impact of atmospheric pressure in different seasons on blood pressure in patients with arterial hypertension
Autorzy:
Kamiński, Marek
Cieślik-Guerra, Urszula I.
Kotas, Rafał
Mazur, Piotr
Marańda, Witold
Piotrowicz, Maciej
Sakowicz, Bartosz
Napieralski, Andrzej
Trzos, Ewa
Uznańska-Loch, Barbara
Rechciński, Tomasz
Kurpesa, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/2168335.pdf
Data publikacji:
2016-07-22
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
arterial hypertension
atmospheric pressure
Ambulatory blood pressure monitoring
ABPM
impact of weather on health
weather
Opis:
Objectives Atmospheric pressure is the most objective weather factor because regardless of if outdoors or indoors it affects all objects in the same way. The majority of previous studies have used the average daily values of atmospheric pressure in a bioclimatic analysis and have found no correlation with blood pressure changes. The main objective of our research was to assess the relationship between atmospheric pressure recorded with a frequency of 1 measurement per minute and the results of 24-h blood pressure monitoring in patients with treated hypertension in different seasons in the moderate climate of the City of Łódź (Poland). Material and Methods The study group consisted of 1662 patients, divided into 2 equal groups (due to a lower and higher average value of atmospheric pressure). Comparisons between blood pressure values in the 2 groups were performed using the Mann-Whitney U test. Results We observed a significant difference in blood pressure recorded during the lower and higher range of atmospheric pressure: on the days of the spring months systolic (p = 0.043) and diastolic (p = 0.005) blood pressure, and at nights of the winter months systolic blood pressure (p = 0.013). Conclusions A significant inverse relationship between atmospheric pressure and blood pressure during the spring days and, only for systolic blood pressure, during winter nights was observed. Int J Occup Med Environ Health 2016;29(5):783–792
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2016, 29, 5; 783-792
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
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