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Tytuł:
Various ionic substitutions in hydroxyapatites - physicochemical studies
Autorzy:
Kolmas, J.
Laskus, A.
Szurkowska, K.
Pajor, K.
Pajchel, Ł.
Powiązania:
https://bibliotekanauki.pl/articles/285828.pdf
Data publikacji:
2018
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
hydroxyapatite
ions
physicochemical analysis
Źródło:
Engineering of Biomaterials; 2018, 21, 148; 45
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
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:
Physico-chemical properties of Rhododendron honey produced in Turkey
Właściwości fizykochemiczne miodu rododendronowego produkowanego w Turcji
Autorzy:
Rasgele, P.G.
Kekecoglu, M.
Powiązania:
https://bibliotekanauki.pl/articles/71672.pdf
Data publikacji:
2013
Wydawca:
Instytut Włókien Naturalnych i Roślin Zielarskich
Tematy:
physicochemical property
Rhododendron
honey
physicochemical analysis
chestnut
flower
Turkey [geogr.]
Opis:
Rhododendron honey is a monofloral honey and it is collected from the flowers of Rhododendron species widely spreading over many countries, mainly in America, Turkey, Indonesia, Australia. It is belived that Rhododendron honey treats several disorders and is used traditionally as an alternative medicine. The determination of the chemical characteristics of the Rhododendron honey is essential for public health. In this research, the physicochemical characteristics of Rhododendron, chestnut and flower honey samples collected from beekeepers in Turkey were determined and compared. Physico-chemical parameters such as moisture, acidity, sucrose, invert sugar, fructose/glucose, conductivity, diastase and hydroxymethylfurfural were analysed in each honey sample. According to the results obtained, no differences were found in physico-chemical properties of Rhododendron, honey samples, except from moisture and acidity compared with those of chestnut and flower honeys. In order to differentiate Rhododendron honeys, new methods should be developed. This honey should be reintroduced to medicine and used in pharmaceutical industry.
Miód rododendronowy jest miodem jednokwiatowym zbieranym z kwiatów roślin z rodzaju Rhododendron. Jest rozpowszechniony w wielu krajach Ameryki, a także w Turcji, Indonezji i Australii. Uważa się, że miód rododendronowy leczy niektóre zaburzenia i jest używany w medycynie alternatywnej, zatem określenie składu chemicznego miodu rododendronowego jest ważne dla zdrowia społeczeństwa. W pracy określono i porównano cechy fizykochemiczne próbek miodu rododendronowego, kasztanowego i kwiatowego otrzymanego z pasiek w Turcji. W każdej próbce oznaczano cechy fizykochemiczne takie jak wilgotność, kwasowość, poziom sacharozy i cukru inwertowanego, stosunek fruktozy/glukozy, przewodność elektryczna, diastaza i hydroksymetylofurfural. Zgodnie z otrzymanymi wynikami, nie znaleziono różnic w cechach fizykochemicznych próbek miodu z rododendronu, za wyjątkiem wilgotności i kwasowości w porównaniu z miodem z kasztanowca i kwiatowym. W celu wychwycenia cech charakteryzujących tylko miód rododendronowy potrzeba zastosowania nowych metod. Miód ten powinien zostać ponownie wprowadzony do użycia w medycynie i przemyśle farmaceutycznym.
Źródło:
Herba Polonica; 2013, 59, 3
0018-0599
Pojawia się w:
Herba Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Physicochemical characteristics of land waters in the Bellsund region (Spitsbergen)
Autorzy:
Chmiel, S.
Bartoszewski, S.
Gluza, A.
Siwek, K.
Zagórski, P.
Powiązania:
https://bibliotekanauki.pl/articles/294579.pdf
Data publikacji:
2007
Wydawca:
Stowarzyszenie Geomorfologów Polskich
Tematy:
physicochemical characteristics
Spitsbergen
land waters
Źródło:
Landform Analysis; 2007, 5; 13-15
1429-799X
Pojawia się w:
Landform Analysis
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:
Physicochemical Properties of Soils derived from Sandstone Parent Materials under Selected Land use types at Agoi-Ibami in Central Cross River State, Nigeria
Autorzy:
Eyong, M. O.
Akpa, E. A.
Powiązania:
https://bibliotekanauki.pl/articles/1076791.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Physicochemical properties
Sandstone
land use types
Opis:
Three profiles were sited on the major landscape elements of crest, middle slope and lower slope on three land uses; Forest (FS), Rubber (RS) and arable cropping (AS) at Agoi-Ibami in Central Cross River State, Nigeria. For study purposes, soil samples were collected from the morphogenetic horizons for the analysis of physical and chemical properties. Results showed that the surface horizon textures were mostly sandy loams with little sandy clay loam, while subsurface textures were mostly sandy clay loams with few silt clay loams and clays. The bulk densities were below the ranges of 1.46 to 1.63 g cm-3 for silts and clays and 1.75 g cm-3 for sands. This imposes stresses such as mechanical resistance to root penetration, decrease in cultivation and organic matter. The surface and subsurface pH values vary from 4.9–4.5 in FS, 4.9-4.6 in RS and 4.9 in AS, indicating that the soils are very strongly acidic. The Organic carbon contents was low with mean values of 4.33 and 0.6 % in surface and subsurface for FS, 2.10 and 0.50 % for surface and subsurface for RS, while surface and subsurface values proved to be 0.57 and 0.31 % for AS. The nitrogen contents was also low, mean values of 0.16 and 0.06 % for surface and subsurface for FS, 0.23 and 0.08 % for surface and subsurface for RS, and 0.19 and 0.10 % for surface and subsurface for AS. The content and available phosphorus are equally low, except for AS, with surface mean values ranging from 11.52 mg kg-1 to 13.87 mg kg-1. The exchangeable cations, Ca, Mg, K, and Na were very low, while exchangeable H+ and Al3+ were high. Base saturation was also low in FS and AS (< 50%) in surface soils, but higher in AS in the surface and in RS in the subsurface soils. The mean values of organic matter were 4.33 and 0.16 %. The land use should, therefore, be adjusted by application of recommended inorganic fertilizers and organic matter so as to support growth of crops such as maize, yams, cassava etc.
Źródło:
World News of Natural Sciences; 2019, 23; 1-12
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Suitability Assessment of Groundwater for Irrigation Purpose in Veppanthattai Block, Perambalur District, Tamil Nadu
Autorzy:
Ibraheem, A. Mohamed
Mazhar Nazeeb Khan, S. M.
Powiązania:
https://bibliotekanauki.pl/articles/1178314.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Groundwater
Irrigation
Physicochemical parameters
Season
Veppanthattai
Opis:
Groundwater is a major water source for agricultural irrigation in Veppanthattai block. Forty-five groundwater samples were collected at various standard locations from the study area in the year of 2015 at pre-monsoon, post monsoon and monsoon seasons periodically. The concentrations of physicochemical parameters like pH, Electrical Conductivity (EC), total dissolved solid (TDS), Total Hardness (TH), Ca2+, Mg2+, Na+, K+, HCO3ˉ, SO42-, Clˉ, NO3ˉ and PO43- were analyzed. The results of the concentrations were interpreted and compared with different irrigation standards namely EC, Percent Sodium (%Na), Sodium Adsorption Ratio (SAR), Residual Sodium Carbonate (RSC), Permeability Index (PI), Kelly’s Ratio (KR), Ion Exchange as chloro-alkaline indices (CAI-I and CAI-II), Chloride classification and Magnesium ratio.
Źródło:
World Scientific News; 2017, 81, 2; 81-93
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hydroxyapatite as a support in protease immobilization process
Autorzy:
Zdarta, J.
Budzinska, K.
Kolodziejczak-Radzimska, A.
Klapiszewski, Ł.
Siwinska-Stefanska, K.
Bartczak, P.
Piasecki, A.
Maciejewski, H.
Jesionowski, T.
Powiązania:
https://bibliotekanauki.pl/articles/110452.pdf
Data publikacji:
2015
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
hydroxyapatite
enzyme immobilization
protease
physicochemical characteristic
Opis:
Hydroxyapatite is used as a matrix for immobilization of protease from Aspergillus oryzae by a process of adsorption. The matrix obtained has the surface area of 26 m2/g and particles in the shape of flakes of diameters no greater than 650 nm. The efficiency of the proposed method was confirmed by the Fourier transform infrared spectroscopy, elemental analysis and by analysis of parameters of the pore structure of matrix and products after immobilization. On the basis of the Bradford method it was found that the greatest amount of enzyme (132 mg/g) was immobilized from a solution of initial enzyme concentration of 7 mg/cm3 after 24 h of the process.
Źródło:
Physicochemical Problems of Mineral Processing; 2015, 51, 2; 633-646
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Leachate Monitoring and an Assessment of Groundwater Pollution from the Tangier Landfill
Autorzy:
Elmaghnougi, Ikram
Tribak, Abdelghani Afailal
Maatouk, Mustapha
Powiązania:
https://bibliotekanauki.pl/articles/2105516.pdf
Data publikacji:
2022
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
leachate
pollution
groundwater
physicochemical
heavy metals
Opis:
Leachate from public landfill in the city of Tangier, which is neither collected nor treated, could constitute a probable source of pollution of the groundwater table and of those of the Mlalah and Khandak Bou Hajjar wadis in the east, and the Mghogha and Ghir Boudra wadis to the south. This work aims to analyze the level of contamination at Tangier’s municipal waste disposal. The leachate samples were collected and analyzed during the period from 2016 to 2019 and the physicochemical parameters (humidity, pH, organic matter, etc.) were determined on these samples as well as the contents of five heavy metals (lead, cadmium, iron, chrome and zinc). Analysis of the well water shows the presence of polluting elements in the leachate water and a high concentration of metals (especially iron) that exceeds standards. This makes the effluent extremely toxic and thus presents a permanent threat to the health of the local population and the surrounding environment.
Źródło:
Geomatics and Environmental Engineering; 2022, 16, 3; 111--130
1898-1135
Pojawia się w:
Geomatics and Environmental Engineering
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:
Quality assessment of vegetable oil industry effluents in Port Harcourt, Rivers State, Nigeria
Autorzy:
Verla, A. W.
Verla, E. N.
Adowei, P.
Briggs, A.
Horsfall Jnr, M.
Powiązania:
https://bibliotekanauki.pl/articles/412234.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
physicochemical
wastewater
biodegradability
pollutants
indices
Opis:
Five composite samples of waste water were collected from waste water tank of a vegetable oil refining company and were analyzed for physiochemical characteristics, heavy metal and organic pollutants. Physicochemical determinations were done according to standard methods; heavy metals were determined by use of Atomic Absorption Spectrophotometer method while organic pollutants were determined by Gas chromatography system HP 6890 series. Sulphate was determined by vanadomolybdophosphoric acid method while phosphates and chlorides were determined by argentometric method. Results reveal that effluent pH (4.67 ±0.015), salinity (125 ±4.50 %) and BOD5 (17.83 ±1.70 mg/l) were bellow WHO standard whereas TDS (127.7 ±5.77 mg/l), TSS (563.6 ±3.15 mg/l) and COD (3959 ±3.8 mg/l) were above WHO standards. Heavy metal pollution index (0.31) showed no multi-element contamination arising from effluent. The degree of contamination (1.84) showed that the effluent has a moderate polluting potential. Lower molecular weight PAHs showed a significant difference even though most of the organic compounds in vegetable oil refinery wastewater showed good biodegradability that varied weekly. Therefore there is either no treatment or an in effective treatment of the effluents. This could result to serious environmental problems in the near future.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2014, 14, 2; 179-189
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Contribution to the Treatment of Urban Wastewater in the City of Fez by Coagulation and Flocculation Using a Biodegradable Reagent
Autorzy:
Elmansouri, Ibtissame
Lahkimi, Amal
Benaabou, Mohamed
Chaouch, Mehdi
Eloutassi, Noureddine
Bekkari, Hicham
Powiązania:
https://bibliotekanauki.pl/articles/2027813.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
treatment
physicochemical
microbiological
urban water
Opis:
This study includes two parts; the first one, concerns evaluation of the physicochemical and microbiological quality of the urban wastewater of the city of Fez, through a space-time dynamics. In turn, the second part deals with the contribution to the treatment of these effluents, by a new biodegradable reagent in the process of physicochemical treatment (coagulation flocculation). For this purpose, the sampling of urban wastewater was carried out 4 months (September, December, February and June 2019), at a rate of two samplings per period on 4 specific sites along the river Fez, the degree of contamination of which differs from one site to another, according to space and time. The diagnostic of these stations showed a high level of pollution that is difficult to biodegrade. Indeed, this pollution can cause negative effects not only on the environment but also on human’s health. In order to take long-term action against the low quality of water and to replace certain inorganic coagulants, alternative processes for water treatment using cactus powder were set up. The characterization of results showed that the urban effluent has a high load in terms of electrical conductivity (EC), dissolved oxygen, chemical oxygen demand (COD), as well as concentrations of faecal coliforms, streptococci and staphylococci. In addition, the purifying power revealed that the removal rate of COD reaches maximum values of 38% and 58% forlimeand the mixture of lime with cactus powder, respectively.
Źródło:
Journal of Ecological Engineering; 2022, 23, 2; 77-85
2299-8993
Pojawia się w:
Journal of Ecological Engineering
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:
Coupling mineralogy with physicochemical parameters in view copper flotation efficiency improvement
Autorzy:
Naumov, Dejan
Stamenov, Lachezar
Gaydardzhiev, Stoyan
Bouzahzah, Hassan
Powiązania:
https://bibliotekanauki.pl/articles/109556.pdf
Data publikacji:
2019
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
copper ore
flotation
quantitative mineralogy
physicochemical factors
Opis:
The Chelopech epithermal arsenic bearing high-sulphidation, copper-gold deposit located in Bulgaria is often considered as the richest European gold deposit. Selected physicochemical parameters have been measured at key flotation streams inside the processing plant. Sampling campaign has followed with samples being submitted to chemical and mineral liberation analyses. A quantitative analysis has enabled to link copper flotation response to the type of copper bearing minerals and physiochemical parameters such as redox potential (Eh), dissolved oxygen (DO), EDTA extractable Cu and Fe. Data from the mineral liberation analysis (MLA) have highlighted an important process- relevant information explaining the variable floatability in different particle size ranges. A low chalcopyrite recovery can be linked to the non-sufficient amount of dissolved oxygen inside the copper selective flotation. Given the finely-disseminated copper bearing minerals, copper losses due to particle locking could be suggested as well.
Źródło:
Physicochemical Problems of Mineral Processing; 2019, 55, 3; 701-710
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
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:
Content of the Label Paper and the Variation of Physico-Chemical Parameters in Bottled Water in Kosovo
Autorzy:
Çadraku, Hazir
Powiązania:
https://bibliotekanauki.pl/articles/2202226.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
water quality
bottled water
physicochemical parameter
Kosovo
Opis:
Water is a vital resource for the existence of mankind and all ecosystems on Earth. Before using it, it must be ensured that water is of good quality, within the hygienic-sanitary norms for human consumption. In recent decades, the supply of drinking water has been supplemented with the water bottled in glass and plastic bottles, which is found everywhere in the market of the Republic of Kosovo. This paper deals with the content of the label paper and the variation of physico-chemical parameters of bottled water which is extracted, analyzed, processed, filled, packaged and distributed on the market of the Republic of Kosovo and beyond as a product for consumption. i.e. In this paper 20 brands of groundwater (types of water) produced and packaged in the territory of Kosovo.
Źródło:
Journal of Ecological Engineering; 2022, 23, 11; 122--131
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Concentration of heavy metals in the soil and translocation with phytoremediation potential by plant species in military shooting range
Autorzy:
Magaji, Y.
Ajibade, G. A.
Yilwa, V. M. Y.
Appah, J.
Haroun, A. A.
Alhaji, I.
Namadi, M. M.
Sodimu, A. I.
Powiązania:
https://bibliotekanauki.pl/articles/1157708.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Heavy metals
Physicochemical parameters
Phytoremediation
Translocation
Opis:
Concentration of seven (7) metals (Pb, Cu, Zn, Mu, Ni, Cr, and Cd) in the samples of soil and some plant species collected from Kachia military shooting range were determined. The mineral ions were assayed using the acid digestion method and atomic absorption spectrophotometry (AAS). Physicochemical parameters (pH, EC, Bulk density, water holding capacity and Total Nitrogen) of the soil samples were also determined. Of the 7 metals determined in the soils samples, the concentration of Pb (14.85 ± 6.78 mg/kg-1) was the highest compared to the concentrations of other metals. Physicochemical parameters were within the range that allows effective phytoremediation. Cu showed the lowest concentration (0.55 ± 1.68 mg/kg-1). Ni was below the detectable limit in most of the samples. Similarly, concentrations of Pb (12.30 mg/kg-1) in the shoot of Albizia zygia among other metals were higher than those of the other metals in the plant tissues. Concentration of Cd (0.07 mg/kg-1) in the root of Eragotis tremula was the lowest. Generally, metal ion concentration in the soil and plant samples of the shooting range (polluted site) significantly) differed from those of the non-polluted site (P<0.05). Combretum hispidium among the plant species had the highest translocation factor (TF = 2.91). Although the TF was higher in the plant of the polluted site TF >1), reasonable amount of them were retained within the underground tissues (roots).
Źródło:
World Scientific News; 2018, 92, 2; 260-271
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of physicochemical properties of triticale starch on selected indices of bread quality
Wpływ fizykochemicznych właściwości skrobi z pszenżyta na wybrane wskaźniki jakości chleba
Autorzy:
Gambus, H.
Lewczuk, J.
Nowotna, A.
Fortuna, T.
Powiązania:
https://bibliotekanauki.pl/articles/1399134.pdf
Data publikacji:
1988
Wydawca:
Instytut Rozrodu Zwierząt i Badań Żywności Polskiej Akademii Nauk w Olsztynie
Tematy:
triticale starch
physicochemical characteristics
bread volume
Opis:
Starches were isolated from 28 Polish triticale lines by the laboratory method, and their fundamental physicochemical properties determined. Next, pup loaves were baced in the starch - gluten system (by the direct method) and the volume of the loaves was measured. The results were subjected to statistical analysis which showed a positive correlation between bread volume and viscosity of starch pastes.
Skrobie wyizolowane metodą laboratoryjną z 28 polskich rodów pszenżyta przebadano pod względem ich właściwości fizykochemicznych. Używając tego samego glutenu i różnych próbek skrobi z pszenżyta wypiekano chlebki metodą bezpośrednią w systemie skrobia-gluten. Oznaczano: upiek, stratę wypiekową całkowitą, wydajność oraz barwę skórki i elastyczność miękiszu chlebków. Fizykochemiczne właściwości skrobi oraz objętość otrzymanych chlebków poddano analizie statystycznej. Wykazała ona korelacje pomiędzy objętością otrzymanych chlebków a: lepkością kleików w temp. 50°C (r = + 0,45), wielkością ziarenek skrobiowych (% ziarenek o wielkości 21,9-30,9 um: r = + 0,44 ), temperatura kleikowania (r = - 0,66) oraz zawartością białka (r = - 0,54 ). Wydaje się więc, że te właściwości fizykochemiczne skrobi w sposób istotny wpływały na objętość chlebków. Nie wykazano istotnej zależności pomiędzy objętością chlebków a: stopniem wiązania wody i rozpuszczalności skrobi pszenżytnej w wodzie, zawartością amylozy oraz zawartością tłuszczu i fosforu w skrobi z pszenżyta.
Źródło:
Acta Alimentaria Polonica; 1988, 14(38), 3-4; 131-138
0137-1495
Pojawia się w:
Acta Alimentaria Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Water Quality Index and Human Health Risk Assessment of Class B Swimming Pools in Owerri Municipal, Nigeria
Autorzy:
Ngozi, Verla Evelyn
Nwachukwu, Joseph Ikechukwu
Lydia, Ugwoke Chidera
Wirnkor, Verla Andrew
Powiązania:
https://bibliotekanauki.pl/articles/1839872.pdf
Data publikacji:
2021
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Contaminants
Model
Index
Permissible limit
Physicochemical
Opis:
Assessments of public swimming pools in Owerri municipal, Imo state, Nigeria was carried out for the purpose of determining the suitability of water for swimming in this fun loving town of Nigeria. Five public pools were selected by purposive sampling from more than 30 pools in the area. Water samples were collected in the morning and evening from pools and analyzed in triplicates for physicochemical properties and heavy metals content by using standard method for water analysis and Atomic Absorption Spectrometer. Data obtained were compared with WHO and EPA standards for drinking and recreational water and modeled on the Water Quality Index (WQI). Results revealed that pH ranged from 7.10±0.02 to 8.1±1.27 pH units, EC ranged from 40 ±3.11 µS/cm to 80±3.44 µS/cm, COD value ranged from 0.08±0.07 to 1.02 ±0.91, BOD value ranged from 0.03±0.02 to 3.14±0.13, dissolved oxygen (DO) ranged 3.9±1.77 mg/kg to 9.3±2.41 mg/kg, suspended solids ranged from 6.43±8.21 mg/l to 42.44±7.00 mg/l, total dissolved solids (TDS) ranged from 22±2.90 mg/l to 97.98±8.79 mg/l. The major cations were below the standard. Nitrate ranged from 0.91±0.02 mg/l to 0.96 mg/l, sulphate ranged from 2.34±0.10 mg/l to 2.81±0.11mg/l, phosphate ranged from 0.34±0.02 mg/l to 0.65±0.02 mg/l while chloride ranged from 12.75±1.89 mg/l to 31.89±2.04 mg/l with mean 24.23 mg/l. Except for chloride, all other studied anions were lower than the permissible limit set by WHO/EPA. Concentration of lead (Pb), iron (Fe), Copper (Cu) were also below the permissible limit. The individual WQ indexes showed A (3.32), B (5.44), C (10.08), D (12.40) and E (9.77) with average WQI of 8.20 suggesting that the swimming pools are of “Excellent water quality”, thereby suggesting safe swimming pools for recreational activities in the study area. Values of exposure pathways for all metals at all swimming pools were less than one. Therefore there were no risks of heavy metals from the swimming pools.
Źródło:
World News of Natural Sciences; 2021, 38; 60-82
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characteristics of selected physicochemical indices of upland carbonate stream water with coarse-grained substrate
Autorzy:
Policht-Latawiec, A.
Kanownik, W
Grubka, K
Powiązania:
https://bibliotekanauki.pl/articles/124481.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
Sztoła river
water quality
physicochemical indices
Opis:
Hydrochemical research was conducted in 2011 at three measurement-control points on the Sztoła river, a left-bank tributary to the Biała Przemsza river. Water temperature and pH, dissolved oxygen concentration, oxygen saturation and electrolytic conductivity were measured directly in the field. 11 selected physicochemical indices of the Sztoła surface water were assessed in the laboratory. The analysis of the research results revealed that the water of the Sztoła along the analyzed river reach was first class quality. The analysis of water usable qualities proved that at point 1 it can be used for water supply after high-performance physical and chemical treatment, whereas at other points after a typical physical and chemical treatment, due to high manganese concentrations. Water does not meet the requirements of natural habitat for the Salmonoid fish only at point 1 because of exceeded standard values for nitrites. The Cyprinid fish have the proper habitat conditions along the examined river reach. Among 15 analysed physiochemical indices of water, 7 were statistically higher in the lower course, but they did not affect worsening of the Sztoła river water quality. Greater water pollution in the central and lower river reach is caused by the anthropogenic pressure connected mainly with the operations of extraction industry in the catchment.
Źródło:
Journal of Ecological Engineering; 2014, 15, 4; 23-28
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Quality traits and physicochemical characteristics of pork from crossbreds depending on age
Cechy jakościowe tusz i właściwości fizykochemiczne mięsa mieszańców świń w zależności od wieku
Autorzy:
Rudy, M.
Zin, J.
Powiązania:
https://bibliotekanauki.pl/articles/2197636.pdf
Data publikacji:
2007
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
pig
crossbred pig
pork quality
pig meat
physicochemical characteristics
animal age
carcass
fattener
chemical composition
physicochemical property
sensory property
Źródło:
Annales Universitatis Mariae Curie-Skłodowska. Sectio EE: Zootechnica; 2007, 25, 1; 101-107
0239-4243
2083-7399
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska. Sectio EE: Zootechnica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cyanobacterial species Biodiversity in Mahasamund district of Chhattisgarh region, India
Autorzy:
Sharma, Sangita Devi
Sahu, Kaushilya
Jain, Pankaj Kumar
Powiązania:
https://bibliotekanauki.pl/articles/1118876.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Cyanobacterial screening
Rice fields
physicochemical properties of soil
Opis:
Rice is the principal crop of the Chhattisgarh State. It covers 66% of all cultivable land and is mostly grown within the kharif cropping season. To increase sustained productivity without decreasing soil quality, algal bio fertilizers are widely used in the State. Hence, the culture of cyanobacterial bio fertilizers has been started on a regional basis. This includes survey, isolation and screening of stress-tolerant cyanobacteria. Thus, this study concerns the characterization of physical and chemical properties of soil collected from Mahasamund districts of Chhattisgarh state with respect to the biodiversity of cyanobacteria.
Źródło:
World News of Natural Sciences; 2017, 7; 1-15
2543-5426
Pojawia się w:
World News of Natural Sciences
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:
Advanced biocomposites based on silica and lignin precursors
Autorzy:
Klapiszewski, Ł.
Nowacka, M.
Szwarc-Rzepka, K.
Jesionowski, T.
Powiązania:
https://bibliotekanauki.pl/articles/110719.pdf
Data publikacji:
2013
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
biocomposites
silica
lignin
physicochemical and structural properties
Opis:
A new method is proposed for obtaining biocomposites based on a combination of silica and lignin precursors. Amorphous silica was produced by two methods: one based on hydrolysis and condensation of tetraethoxysilane (sol–gel method) and the other involving precipitation in a polar medium. Additionally, the commercial silica known under the name of Syloid®244 was used. The silica surface was modified to ensure better affinity of the support to activated lignin. The biocomposites obtained were carefully characterised by determination of their physicochemical and dispersive–morphological properties. Electrokinetic stability of the biocomposites was evaluated on the basis of zeta potential dependence on pH. Thermal stability of the biocomposites and their porous structure parameters (surface area, pore diameter and pore volume) were established. The results indicate that silica/lignin biocomposites are much promising for application in many areas of science and industry.
Źródło:
Physicochemical Problems of Mineral Processing; 2013, 49, 2; 497-509
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-25 z 329

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