scholarly journals Elemental content profiles in propolis from several cities of Turkey

2017 ◽  
Vol 7 (8) ◽  
pp. 661 ◽  
Author(s):  
Canan Aksoy ◽  
Meltem Maras Atabay ◽  
Engin Tirasoglu ◽  
Ezgi Taylan Koparan ◽  
Aysel Kekillioglu
Keyword(s):  
Folk Medicine ◽  
Calcium Content ◽  
Energy Dispersive ◽  
Elemental Content ◽  
Good Resolution ◽  
Element Analysis ◽  
X Ray ◽  
Geological Origin ◽  
Macro Element

Background: Macro-element content profiles in propolis that have been previously used in traditional folk medicine have provided enough information to develop a classification of the geological origin of propolis. Within this study, we aim to contribute our research to existing literatüre, particularly through our use of EDXRF spectroscopy, which has not been used to study propolis before. The results of the study led us to conclude that the residues of heavy metals were a limited concentration in Turkish propolis samples.Objective: The purpose of this study was to investigate the macro-element profiles in Turkish propolis from 18 different cities of Turkey.  Methods: The macro-element of 22 raw propolis samples were investigated using Energy-Dispersive X-ray fluorescence spectrometry.Results: Turkish Propolis was discovered to be rich with minerals of potassium, sodium which could be more beneficial in human nutrition. Potassium content was at a relatively higher level than other elements in these samples, while calcium content was at  alower level in those samples from various regions of Turkey.Conclusion: The elements of propolis that we studied were distinctive enough to make the discrimination of propolis from different locations in Turkey possible. The quantification by energy-dispersive X-ray fluorescence spectrometry procedures provided good resolution of multi-element analysis in propolis samples.Keywords: Propolis; element analysis; energy-dispersive X-ray fluorescence spectrometre 

Thin-section, freeze-fracture, and energy dispersive x-ray analysis studies of the protein bodies of tomato seeds

1980 ◽  
Vol 58 (6) ◽  
pp. 699-711 ◽  
Author(s):  
Ernest Spitzer ◽  
John N. A. Lott
Keyword(s):  
Freeze Fracture ◽  
Protein Body ◽  
Cell Types ◽  
Energy Dispersive ◽  
Protein Bodies ◽  
Elemental Content ◽  
Tomato Seed ◽  
Endosperm Tissue ◽  
X Ray ◽  
Edx Analysis

Protein bodies of dry seeds of tomato (Lycopersicon esculentum) from radicle, hypocotyl, cotyledon, and endosperm tissue were extensively studied using thin-sectioning, freeze-fracturing and energy dispersive x-ray (EDX) analysis. Protein bodies varied in size, were oval to circular in section, and generally consisted of a proteinaceous matrix, globoid crystal, and protein crystalloid components. Size, shape, and arrangements of globoid crystals and protein crystalloids varied even within the same cell. Globoid crystals were generally oval to circular in section. They were always surrounded by a proteinaceous matrix. In a given protein body the number present ranged from a few to numerous. A protein body generally contained only one protein crystalloid. In section, protein crystalloids were irregular or angular in shape. They were composed of substructural particles which formed lattice planes. EDX analysis of tomato seed globoid crystals revealed the presence of P, K, and Mg in all cases, a fact that is consistent with globoid crystals being phytin-rich. Rarely, small amounts of calcium were found along with P, K, and Mg in globoid crystals of each of the tissue regions considered. The distribution pattern of cells with Ca containing globoid crystals was random. Small amounts of Fe and Mn were also found in the globoid crystals of protein bodies from certain cell types. These two elements, unlike calcium, were specific in terms of their distribution. Globoid crystals from the protodermal cells often contained Mn and Fe. The globoid crystals from provascular tissue of radicle, hypocotyl, and cotyledon regions often contained Fe while globoid crystals in the first layer of large cells surrounding these provascular areas always contained Fe. Results from EDX analysis of the proteinaceous material from the protein bodies are presented and discussed as are variations in elemental content due to different fixations.

Otospongiosis: Morphologic and Microchemical Investigation after Naf-Treatment

1981 ◽  
Vol 89 (4) ◽  
pp. 646-650 ◽  
Author(s):  
Paul Bretlau ◽  
Hans Jørgen Hansen ◽  
Jean Causse ◽  
Jean-Bernard Causse
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Sodium Fluoride ◽  
Energy Dispersive ◽  
Blind Study ◽  
Element Analysis ◽  
X Ray ◽  
Scanning Electron

Element analysis of microareas of otospongiotic specimens is described. A total of 36 otospongiotic stapes are ultrasectioned without decalcification and examined using a transmission and a scanning electron microscope (STEM-mode). The latter was equipped with an energy dispersive x-ray analyzer. Twenty of the stapes came from patients who have had sodium fluoride (NaF) treatment (15 to 45 mg/day) for a minimum of 12 months. The otospongiotic stapes are classified as spongiotic and sclerotic according to their pathologic characteristics and state of mineralization. Using the Ca/P ratio as criterion—measured by the characteristic x-ray fluorescence—it was shown in a blind study that the NaF-treated otospongiotic stapes had a statistically higher Ca/P ratio, indicating that the fluoride may stabilize otospongiotic lesions, particularly the spongiotic type with unstable mineralization.

Protein bodies in Datura stramonium seeds: structure and mineral nutrient composition

1991 ◽  
Vol 69 (11) ◽  
pp. 2545-2554 ◽  
Author(s):  
Sara Maldonado ◽  
John N. A. Lott
Keyword(s):  
Distribution Patterns ◽  
Cell Types ◽  
Datura Stramonium ◽  
Energy Dispersive ◽  
Protein Bodies ◽  
Mineral Nutrient ◽  
Electron Microscopic ◽  
Element Analysis ◽  
X Ray ◽  
Endosperm Protein

The structure of protein bodies in the endosperm and embryo of Datura stramonium was studied with a variety of light-and electron-microscopic techniques. Protein bodies had one to several globoid crystals and one or two protein crystalloids in the proteinaceous matrix. Although the embryo protein bodies rarely had more than two globoid crystals, the endosperm protein bodies had varying sizes and numbers of globoid crystals, even within the same cell. Energy-dispersive X-ray analysis of globoid crystals revealed the presence of P, K, and Mg in all cases. Traces of Fe, Mn, and Zn were also found in globoid crystals of protein bodies from certain cell types. The distribution patterns of these three elements were quite specific; for example, Mn traces were found only in the globoid crystals of the protoderm. Neutron-activation analysis of endosperm and embryo tissues was used to quantitatively measure the concentration of Ca, Cl, Cu, I, K, Mg, Mn, Na, and S. The results from structural studies and the element analysis studies are discussed in the context of solanaceous seeds in particular but also with relation to seeds in general. Key words: protein bodies, Datura stramonium, seed, globoid crystals, energy-dispersive X-ray analysis, Solanaceae.

Classification of mineral particles by non-linear mapping of electron microprobe energy dispersive X-ray spectra

The Analyst ◽  
1994 ◽  
Vol 119 (5) ◽  
pp. 971 ◽  
Author(s):  
Boris Treiger ◽  
Igor Bondarenko ◽  
Piet Van Espen ◽  
Ren� Van Grieken ◽  
Fred Adams
Keyword(s):  
Electron Microprobe ◽  
Linear Mapping ◽  
Energy Dispersive ◽  
X Ray ◽  
Mineral Particles ◽  
Non Linear

scholarly journals Elemental content of PM<sub>2.5</sub> aerosol particles collected in Göteborg during the Göte-2005 campaign in February 2005

2009 ◽  
Vol 9 (7) ◽  
pp. 2597-2606 ◽  
Author(s):  
J. Boman ◽  
M. J. Gatari ◽  
S. Janhäll ◽  
A. S. Shannigrahi ◽  
A. Wagner
Keyword(s):  
Aerosol Particles ◽  
Urban Air Pollution ◽  
Trace Element Analysis ◽  
Rural Site ◽  
Elemental Content ◽  
Local Wind ◽  
Element Analysis ◽  
Air Masses ◽  
X Ray ◽  
Urban Sites

Abstract. The Göte–2005 measurement campaign aimed at studying the influence of the winter thermal inversions on urban air pollution. Elemental speciation of PM2.5 aerosol particles, collected on Teflon filters at three urban sites and one rural site in the Göteborg region, was a major part of the study. Trace element analysis was done by Energy Dispersive X-Ray Fluorescence (EDXRF) spectrometry and the concentrations of S, Cl, K, Ca, Ti, V, Mn, Fe, Ni, Cu, Zn, Br and Pb were determined. The elemental content of the particles, local wind speed and direction, and backward trajectories were used to investigate possible sources for the pollutants. We concluded that S, V, Ni, Br, and Pb had their main sources outside the central Göteborg area, since elevated concentrations of these elements were not observed during an inversion episode. Sea traffic and harbour activities were identified, primarily by the S and V content of the particles. This study showed that the elemental analysis by EDXRF presents valuable information for tracing the origin of air masses arriving at a measurement site.

Energy dispersive X-ray fluorescence spectrometry for the direct multi-element analysis of dried blood spots

2018 ◽  
Vol 139 ◽  
pp. 13-19 ◽  
Author(s):  
E. Marguí ◽  
I. Queralt ◽  
E. García-Ruiz ◽  
E. García-González ◽  
L. Rello ◽  
...  
Keyword(s):  
Dried Blood Spots ◽  
Energy Dispersive ◽  
Fluorescence Spectrometry ◽  
Element Analysis ◽  
X Ray ◽  
Blood Spots ◽  
Multi Element Analysis
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