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Wyświetlanie 1-15 z 85
Tytuł:
The effect of plasma treatment on surface physicochemical properties of chitosan/glucan/HA biomaterial
Autorzy:
Przekora, A.
Pawłat, J.
Terebun, P.
Kwiatkowski, M.
Ginalska, G.
Powiązania:
https://bibliotekanauki.pl/articles/283980.pdf
Data publikacji:
2018
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
plasma
biomaterials
physicochemical properties
Źródło:
Engineering of Biomaterials; 2018, 21, 148; 9
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Collagen - structure, properties and application
Autorzy:
Owczarzy, Aleksandra
Kurasiński, Robert
Kulig, Karolina
Rogóż, Wojciech
Szkudlarek, Agnieszka
Maciążek-Jurczyk, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/1844977.pdf
Data publikacji:
2020
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
collagen
collagen structure
physicochemical properties
biological properties
DDS
physicochemical techniques
atelocollagen
Opis:
Collagen is the dominant component of the extracellular matrix of mammals. It occurs almost in all animal tissues. Collagen is a highly heterogeneous protein. The collagen protein family is characterized by great diversity in terms of structure, occurrence, and function. Up till now, 29 types of collagens proteins have been classified. The representation of individual types of collagen has certain common features. The most important property is the above-average mechanical strength that results directly from the spatial structure. Collagen is a building material for most tissues and organs. It also plays an important role in the process of cell growth and differentiation, which results from the specific structure of collagen fibers as well as their ability to adhere. The development of research techniques allowed to study in detail the molecular structure and properties of collagen. Therefore, collagen has become a subject of interest in many branches of science. Synthetic recombinant collagen fibers were developed as the basis of collagen biomaterials for medical applications, including implantology or gynecology. The specific structure of collagen also makes it applicable as a protein carrier in drug delivery systems (DDS), particularly in the treatment of cancer and genetic diseases. The use of tissue regenerative abilities and an interdisciplinary look at the properties of collagen and collagen-based biomaterials may constitute the future of medical development.
Źródło:
Engineering of Biomaterials; 2020, 23, 156; 17-23
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study of some physicochemical and rheological properties of irradiated honey
Autorzy:
Bera, A
Almeida-Muradian, L. G.
Sabato, S. F.
Powiązania:
https://bibliotekanauki.pl/articles/147025.pdf
Data publikacji:
2008
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
gamma radiation
honey
rheology
physicochemical properties
Opis:
Honey is a sweet substance produced by bees, well appreciated in many places and its consumption has been increased either as raw material or as a food ingredient. Its use as food by the consumer, or even for exportation, implies safety inherent in its quality and processing control. Gamma radiation can be applied in food or ingredients for many objectives like pathogens microorganisms’ reduction, disinfestations, and sterilization. The aim of this work was to verify some physicochemical modifications, as well as rheological evaluation of honey submitted to irradiation at 10 kGy. The physicochemical parameters analyzed were: moisture, HMF, free acidity, pH, sugars and ash. The rheological behavior was measured at different temperatures. The results indicated that few changes occurred; the rheological behavior was not impaired and did not present any significant physicochemical alteration.
Źródło:
Nukleonika; 2008, 53, suppl. 2; 85-87
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of the differentiation of structural and physicochemical properties of orthodontic wires of AlSl 304 stainless steel
Autorzy:
Grygier, D.
Hoppe, V.
Zięty, A.
Rutkowska-Gorczyca, M.
Powiązania:
https://bibliotekanauki.pl/articles/284388.pdf
Data publikacji:
2018
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
wires
orthodontic arches
physicochemical properties
Źródło:
Engineering of Biomaterials; 2018, 21, 148; 14
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of chitosan nonwoven fabric modification on its physicochemical and biological properties
Autorzy:
Dzierzkowska, Ewa
Ścisłowska-Czarnecka, Anna
Kolesińska, Beata
Boguń, Maciej
Stodolak-Zych, Ewa
Powiązania:
https://bibliotekanauki.pl/articles/284448.pdf
Data publikacji:
2019
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
nonwoven fabric
modification
physicochemical properties
biological properties
Źródło:
Engineering of Biomaterials; 2019, 22, no.153; 108
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis and characterization of polymer biocomposites with lignin
Autorzy:
Goliszek, Marta
Podkościelna, Beata
Powiązania:
https://bibliotekanauki.pl/articles/110212.pdf
Data publikacji:
2019
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
lignin
biocomposites
physicochemical properties
eco-filler
photopolymerization
Opis:
A new method of synthesis of polymer biocomposites with lignin using the photopolymerization method has been proposed. Bisphenol A glycerolate (1 glycerol/phenol) diacrylate (BAGDA) was used as a main monomer and 2-ethylhexyl acrylate (EHA) as a reactive diluent. Lignin (L) was applied as an eco-filler. The influence of the increasing lignin content (0; 2.5; 5; 10; 20% w/w) on the properties of the obtained biocomposites was investigated. The chemical structure of biomaterials was investigated by the attenuated total reflectance Fourier transform infrared spectroscopy (ATR/FT-IR) method while the thermal properties were studied by the differential scanning calorimetry (DSC) and thermogravimetric analysis (TG/DTG). Their hardness was measured by the Shore D method. Incorporation of the biopolymer into the structure of polymer composites could be a promising alternative to synthetic materials and would contribute to better lignin utilization. The results of the study are of practical importance in prospective applications of biocomposites with lignin.
Źródło:
Physicochemical Problems of Mineral Processing; 2019, 55, 6; 1375-1381
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Recent studies of irradiated mangoes in Brazil : a trend towards commercial approach
Autorzy:
Sabato, S. F.
Silva, J. M.
Cruz, J. N.
Broisler, P. O.
Rela, P. R.
Salmieri, S.
Lacroix, M.
Powiązania:
https://bibliotekanauki.pl/articles/148822.pdf
Data publikacji:
2008
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
gamma radiation
mangoes
physicochemical properties
sensory evaluation
Opis:
Mango is an important commodity to our country as Brazil is a great producer and exporter of tropical fruits. Nowadays, Mexico and India are the main exporters of mango in the world and Brazil occupies the third position in this ranking. As these countries have adopted gamma radiation as a phytosanitary treatment and signed a bilateral agreement with the United States for exporting mango to this country, Brazil has to be up-to-dated with this trend. The Institute of Nuclear and Energy Researches together with field producers in the northeastern region and partners like the International Atomic Energy Agency, the Canadian Irradiation Center and Empresa Brasileira de Agropecuária joined to demonstrate this technology, its application and its commercial feasibility. The whole project was structured in two parts that involved around 1300 mangoes. The first step consisted mainly in studying the quality of irradiated mangoes within our territory, using a multipurpose semi-commercial cobalt facility, and comparing two harvesting points of the fruits. The second one was an international consignment of irradiated fruits from Brazil to Canada, where the control sample consisted of fruits treated with a hot water dip. The financial part of the feasibility study covers the scope of the investment, including the net working capital and production costs. In a summarized way to express, the results from physicochemical analysis and sensory evaluation were favorable, indicating that gamma radiation is a potential quarantine treatment.
Źródło:
Nukleonika; 2008, 53, suppl. 2; 77-79
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Some applications of barium titanate prepared by different methods
Autorzy:
Sydorchuk, Volodymyr
Khalameida, Svitlana
Skwarek, Ewa
Biedrzycka, Adrianna
Powiązania:
https://bibliotekanauki.pl/articles/2146894.pdf
Data publikacji:
2022
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
barium titanate
synthesis
physicochemical properties
photocatalytic properties
Opis:
The paper presents some application of barium titanate synthesized by different methods. Barium titanate samples were prepared by four procedures: solid state, mechanochemical as direct synthesis and modification as well as hydrothermal and microwave. The obtained samples were systematically studied using X-ray diffraction, nitrogen adsorption, Fourier transform infrared spectroscopy (FTIR), potentiometric titration, and quasi-elastic light scattering and zeta potential measurements. The values of pHpzc (point of zero charge) and pHIEP (isoelectric point) characteristic of the electrical double layer were determined. The prepared samples were tested as photocatalysts under visible light. As a result, relationship between the conditions of barium titanate synthesis, its physicochemical and electrokinetic parameters, as well as photocatalytic activity under visible light was first established.
Źródło:
Physicochemical Problems of Mineral Processing; 2022, 58, 2 (Special issue - selected papers conference: Physicochemistry of interfaces - instrumental methods); art. no. 147192
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of different methods of treatment of municipal sewage sludge on their physicochemical properties and their agricultural utilization
Autorzy:
Malinowska, E.
Jankowski, K.
Wiśniewska-Kadżajan, B.
Sosnowski, J.
Kolczarek, R.
Powiązania:
https://bibliotekanauki.pl/articles/123934.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
municipal sewage sludge
physicochemical properties
agricultural utilization
Opis:
In the study the physicochemical properties of selected municipal sewage sludge were compared using the reports on waste generation from the years 2007–2012 in the Mazovia voivodship. The selection was done on the basis of different methods of sludge processing and the number of equivalent inhabitants (NEJ) supported by sewage. Physical and chemical properties of municipal sewage sludge were significantly dependent on the method of purification and treatment methods. These sludges were characterized by a high content of organic matter and macronutrients. The amount of heavy metals (Pb, Cd, Cr, Cu, Ni, Hg and Zn) were within acceptable standards for municipal sewage sludge used in agriculture. Municipal sewage sludge treated by biological method with higher nutrients removal did not create bacteriological danger and were used in agriculture, generally to the cultivation of all agricultural products. Sewage sludge sanitized with lime and subjected to anaerobic digestion did not meet bacteriological standards, which eliminated their use in agriculture.
Źródło:
Journal of Ecological Engineering; 2015, 16, 2; 76-81
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of electron radiation on sugar content in inverted liquid sugar
Autorzy:
Podadera, P.
Sabato, S. F.
Powiązania:
https://bibliotekanauki.pl/articles/148037.pdf
Data publikacji:
2009
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
electron beam
ionizing radiation
inverted liquid sugar
physicochemical properties
Opis:
Inverted liquid sugar is a mixture of sucrose, glucose and fructose, which shows its relevant characteristic on high sweetness power. Ionizing radiation has been applied to different kind of food and ingredients for different reasons, such as pathogens reduction, disinfestations, quarantine purposes, ripening delay among others. Radiation from an electron beam can be utilized as a technique to treat this ingredient because it can process a great volume of material per unit of time. The main goal of this paper was to verify the effect of radiation on the properties of inverted liquid sugar. This ingredient was irradiated in an electron accelerator (Radiation Dynamics) at a dose ranging from 5 to 50 kGy. Sucrose content measurements were reduced by 23% at 30 kGy when compared to control and the reduced sugar content increased around 11%. Density and moisture values were not affected by radiation. The total soluble solids (Brix degrees) rose in function of the absorbed dose.
Źródło:
Nukleonika; 2009, 54, 2; 85-87
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Drying Kinetics, Physicochemical Properties and Sensory Quality of the Instant Foxtail Millet as Affected by Drying Methods
Autorzy:
Wang, Yingqiang
Zhao, Hongxia
Song, Xi
Zhang, Wenjie
Yang, Feng
Powiązania:
https://bibliotekanauki.pl/articles/2019405.pdf
Data publikacji:
2022-03-01
Wydawca:
Instytut Rozrodu Zwierząt i Badań Żywności Polskiej Akademii Nauk w Olsztynie
Tematy:
instant foxtail millet
drying kinetics
physicochemical properties
sensory quality
Opis:
The instant foxtail millet was prepared using microwave vacuum drying (MVD), microwave-hot air drying (MHAD), hot air drying (HAD) and traditional roasting (TR). Their effects on drying kinetics, physicochemical properties as well as sensory quality were evaluated and compared. Results showed that the total drying time varied with the drying method used and was about 160, 100, 260, and 45 min for MVD, MHAD, HAD and TR, respectively. The effective moisture diffusion coefficients (Deff) were 6.57×10-9 m2/s, 9.80×10-9 m2/s, 4.14×10-9 m2/s and 6.20×10-9 m2/s for MVD, MHAD, HAD and TR, respectively. Drying resulted in a significant decrease in L* and an increase in a* and b* of the color of products. MVD, MHAD and HAD products had a comparable rehydration ratio and cooking time. Scanning electron microscopy and rehydration process revealed that MHAD and MVD samples had a similar structure with the HAD sample. Drying caused a loss of 6.5–54.9% in the total phenolic content and a loss of 38.4–62.2% in total yellow pigment content. MVD millet displayed the highest total phenolic content (142.56 mg GAE/100 g dry matter) and yellow pigment content (9.56 mg CE/kg dry matter). In sensory evaluation, MHAD, HAD and MVD samples had comparable scores and were all accepted by the panelists, either in dry or rehydrated form. MHAD and MVD can be used as an alternative to hot air drying or traditional roasting in the production of the instant millet due to shorter drying time and better product quality.
Źródło:
Polish Journal of Food and Nutrition Sciences; 2022, 72, 1; 69-78
1230-0322
2083-6007
Pojawia się w:
Polish Journal of Food and Nutrition Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Physicochemical properties of chitin isolated from shell of industrial crabs of various species
Autorzy:
Sorokoumov, Ivan
Zagorskiy, Ivan
Zagorskaya, Darya
Uryash, Vladimir
Kokurina, Nadezhda
Larina, Vera
Nemtsev, Sergei
Powiązania:
https://bibliotekanauki.pl/articles/1035553.pdf
Data publikacji:
2010
Wydawca:
Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
Tematy:
chitin
industrial crabs of various species
physicochemical properties
shell
Opis:
Differential thermal analysis was carried out over the range of –190 ÷ 400 °С on six samples of chitin from shells of industrial crabs of various species. All samples of the chitin have several relaxation transitions of endothermal character (g1-, g2-, β- and γ-).
Źródło:
Progress on Chemistry and Application of Chitin and its Derivatives; 2010, 15; 5-10
1896-5644
Pojawia się w:
Progress on Chemistry and Application of Chitin and its Derivatives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fizykochemiczne właściwości miodów pszczelich jako kryteria ich autentyczności
Physicochemical properties of honey as criteria of their authenticity
Autorzy:
Majewska, E.
Delmanowicz, A.
Powiązania:
https://bibliotekanauki.pl/articles/2070111.pdf
Data publikacji:
2009
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
miód
właściwości fizykochemiczne
autentyczność
honey
physicochemical properties
authenticity
Opis:
Sprawdzono możliwości określania autentyczności miodów nektarowych przy zastosowaniu parametrów fizykochemicznych. Do badań wybrano siedem odmian miodów. Uzyskane wyniki pozwoliły stwierdzić, iż określenie niektórych parametrów fizykochemicznych, tj. zawartości cukrów redukujących. HMF. proliny, popiołu oraz przewodności elektrycznej właściwej, może być pomocne przy wykrywaniu zafałszowali.
The aim of this paper was to check the possibility of flural honey authenticity verification using physical and chemical parameters. Seven different floral honey variations were selected for tests. The outcomes confirmed the assumption that determination of some parameters, such as content of glucose and fructose. HMF, proline. ash or electrical conductivity can he helpful in adulteration finding.
Źródło:
Inżynieria i Aparatura Chemiczna; 2009, 1; 36-37
0368-0827
Pojawia się w:
Inżynieria i Aparatura Chemiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Właściwości fizyko-chemiczne tkanki mięśniowej po sonifikacji
Physicochemical properties of muscular tissue after sonification
Autorzy:
Dolatowski, Z. J.
Twarda, J.
Powiązania:
https://bibliotekanauki.pl/articles/291312.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Inżynierii Rolniczej
Tematy:
wołowina
właściwości fizykochemiczne
sonifikacja
beef
physicochemical properties
sonification
Opis:
Celem badań była ocena zjawisk o charakterze pierwotnym wywołanych sonifikacją wołowej tkanki mięśniowej bezpośrednio po uboju oraz po 24 godz. od uboju. Zakres badań obejmował oznaczenie wodochłonności, kwasowości mięsa i zdolności utrzymywania wody własnej. Otrzymane wyniki oznaczeń właściwości fizyko - chemicznych mięsa "ciepłego" przeprowadzonych bezpośrednio po zastosowaniu obróbki ultradźwiękowej wskazują na brak bezpośrednich efektów oddziaływania drgań na badane cechy. Aplikacja drgań w przypadku mięśni w stanie rigor mortis (tj. po 24 godz. od uboju) wpłynęła różnicująco na zdolność utrzymywania przez nie wody własnej.
It was the subject of this work to evaluate phenomena original in character generated by sonification of beef muscular tissue directly after slaughter and 24 hours after slaughter. The scope of investigation included the determination of water absorption, meat acidity, and moisture-holding capacity. It results from the determination of the physico-chemical properties of "warm" meat carried out directly after ultrasonic treatment that the features being tested were not directly affected by vibration. The application of the vibration in case of muscles in a state rigor mortis (i.e. 24 hours after slaughter) had a different effect on their moisture-holding capacity.
Źródło:
Inżynieria Rolnicza; 2005, R. 9, nr 9, 9; 77-83
1429-7264
Pojawia się w:
Inżynieria Rolnicza
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Badanie wybranych własności żeli pod prysznic i płynów do kąpieli w zależności od zastosowanych surfaktantów
The study of the selected properties of shower gels and bubble baths depending on a kind of a used surfactants
Autorzy:
Kowalik, P.
Szyrej, M.
Powiązania:
https://bibliotekanauki.pl/articles/410339.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Humanistyczno-Przyrodniczy im. Jana Długosza w Częstochowie. Wydawnictwo Uczelniane
Tematy:
kosmetyki
surfaktanty
właściwości fizykochemiczne
cosmetics
surfactants
physicochemical properties
Opis:
W pracy dokonano oceny jakości żeli pod prysznic i płynów do kąpieli o różnym składzie ZPC, na podstawie wybranych właściwości fizykochemicznych, samych kosmetyków lub ich roztworów, tj. pH, roztwarzalność, zdolność emulgowania tłuszczu, pianotwórczość, napięcie powierzchniowe. Wśród badanych żeli pod prysznic najskuteczniejsze okazały się trzy produkty tj. żel „Silver protect” (Nivea), „Magnolia mit Magnolien-Extrakt” (Dusch das) i żel „Senses Sensual Mystique” (Avon). Spośród wszystkich badanych płynów do kąpieli, najlepszymi własnościami myjącymi charakteryzuje się „Ziajka” (Ziaja), płyn przeznaczony do kąpieli dla dzieci po pierwszym roku życia. Preparaty te są bezpieczne dla skóry, bardzo dobrze roztwarzają się w wodzie, charakteryzują się bardzo dobrymi właściwościami pianotwórczymi, zdolnościami emulgacji tłuszczu i obniżania napięcia powierzchniowego.
Cosmetics are substances that have daily, direct contact with the human body, which is why it is extremely important to control their quality and safety. The group washing cosmetics includes shower gels and bubble baths, whose function is to clean the skin. Their main component, due to the utility properties, are surfactants. The quality of washing cosmetics is directly related to the type used surfactants, since some of them may cause skin dryness and skin irritation and even allergic reactions. The aim of study is estimation of the quality of shower gels and bubble baths of different surfactants composition, based on selected physicochemical properties as cosmetics or their solutions, i.e. pH, solubility, the ability to emulsify fat, foaming capacity, surface tension. Among the examined cosmetics, shower gels proved to be the most effective three products, i.e. gel “Silver protect” (Nivea), a gel “Magnolia myth Magnolien-Extrakt” (Dusch Das) and gel “Senses Sensual Mystique” (Avon). Of all the examined bubble baths, the best cleansing properties characterized by “Ziajka” (Ziaja), designed for children after the first year of life. These cosmetics are safe for the skin, very well soluble in water and has very good properties foaming, emulsification capacity of fat and lowering the surface tension.
Źródło:
Chemistry, Environment, Biotechnology; 2016, 19; 53-64
2083-7097
Pojawia się w:
Chemistry, Environment, Biotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
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