Energy Dispersive X-Ray Microanalysis of Elemental Distribution in Raw and Germinated Brown Rice Varieties

2014 ◽  
Vol 17 (7) ◽  
pp. 1449-1459 ◽  
Author(s):  
Maznah Ismail ◽  
Nordiana Abdul Hadi ◽  
Rafiuz-Zaman Haroun ◽  
Siti Nor Asma Musa ◽  
Mustapha Umar Imam
Keyword(s):  
Brown Rice ◽  
Energy Dispersive ◽  
Elemental Distribution ◽  
Germinated Brown Rice ◽  
Rice Varieties ◽  
X Ray

scholarly journals Deep learning-based denoising for improved dose efficiency in EDX tomography of nanoparticles

Nanoscale ◽  
2021 ◽  
Author(s):  
Alexander Skorikov ◽  
Wouter Heyvaert ◽  
Wiebke Albrecht ◽  
Daan Pelt ◽  
Sara Bals
Keyword(s):  
Deep Learning ◽  
Electron Tomography ◽  
Energy Dispersive ◽  
Elemental Distribution ◽  
X Ray ◽  
Powerful Approach ◽  
Dose Efficiency

The combination of energy-dispersive X-ray spectroscopy (EDX) and electron tomography is a powerful approach to retrieve the 3D elemental distribution in nanomaterials, providing an unprecedented level of information for complex,...

scholarly journals Microanalysis of individual silver halide microcrystals

1992 ◽  
Vol 50 (2) ◽  
pp. 1612-1613
Author(s):  
S. Wu ◽  
A. Van Daele ◽  
W. Jacob ◽  
R. Gijbels ◽  
A. Verbeeck ◽  
...  
Keyword(s):  
Image Processing ◽  
Electron Microscope ◽  
Silver Halide ◽  
Processing System ◽  
Energy Dispersive ◽  
Elemental Distribution ◽  
X Ray ◽  
Scanning Transmission ◽  
Carbon Coated ◽  
Electron Imaging

There is a considerable interest for the study of the elemental distribution and composition in silver halide photographic emulsions, particularly for the microanalysis of individual microcrystals. In this work, elemental distributions and contents of tabular and cubic silver halide microcrystals were obtained by backscattered electron imaging (BSEI), scanning transmission electron imaging (STEI), x-ray mapping and x-ray microanalysis in a scanning electron microscope (STEM) combined with energy-dispersive x-ray analysis (EDX).Several kinds of silver halide microcrystals were prepared, After removing the gelatin, repeated centrifugation and washing in distilled water, the grains were resuspended and dispersed onto carbon coated 50 mesh copper grids. All analyses were carried out on a JEOL 1200 EX electron microscope equipped with detectors for backscattered, secondary and transmitted electrons and an energy dispersive x-ray analysis system. An image processing system was used for acquiring and processing BSE images, STE images and x-ray maps. The role of the image processing computer system (IBAS Kontron) is twofold: it allows to optimize the acquisition conditions and to process the images afterwards.

scholarly journals Analysis of Ionic-Exchange of Selected Elements between Novel Nano-Hydroxyapatite-Silica Added Glass Ionomer Cement and Natural Teeth

Polymers ◽  
2021 ◽  
Vol 13 (20) ◽  
pp. 3504
Author(s):  
Imran Alam Moheet ◽  
Norhayati Luddin ◽  
Ismail Ab Rahman ◽  
Sam’an Malik Masudi ◽  
Thirumulu Ponnuraj Kannan ◽  
...  
Keyword(s):  
Sol Gel ◽  
Glass Ionomer Cement ◽  
Energy Dispersive ◽  
Elemental Distribution ◽  
Ionic Exchange ◽  
One Pot ◽  
X Ray ◽  
Tooth Structure ◽  
Edx Analysis ◽  
Natural Teeth

One of the foremost missions in restorative dentistry is to discover a suitable material that can substitute lost and damaged tooth structure. To this date, most of the restorative materials utilized in dentistry are bio-inert. It is predicted that the addition of nano-HA-SiO2 to GIC matrix could produce a material with better ion-exchange between the restorative material and natural teeth. Therefore, the aim of the current study was to synthesize and investigate the transfer of specific elements (calcium, phosphorus, fluoride, silica, strontium, and alumina) between nano-hydroxyapatite-silica added GIC (nano-HA-SiO2-GIC) and human enamel and dentine. The novel nano-hydroxyapatite-silica (nano-HA-SiO2) was synthesized using one-pot sol-gel method and added to cGIC. Semi-quantitative energy dispersive X-ray (EDX) analysis was carried out to determine the elemental distribution of fluorine, silicon, phosphorus, calcium, strontium, and aluminum. Semi-quantitative energy dispersive X-ray (EDX) analysis was performed by collecting line-scans and dot-scans. The results of the current study seem to confirm the ionic exchange between nano-HA-SiO2-GIC and natural teeth, leading to the conclusion that increased remineralization may be possible with nano-HA-SiO2-GIC as compared to cGIC (Fuji IX).

scholarly journals Effect of germination on yield, physico-chemical properties, nutritional composition and GABA content in germinated brown rice

2021 ◽  
Vol 58 (4) ◽  
pp. 496-505
Author(s):  
Naseerunnisa Mohmmed ◽  
Aparna Kuna ◽  
Supta Sarkar ◽  
MM Azam ◽  
Lakshmi prasanna K ◽  
...  
Keyword(s):  
Energy Content ◽  
Pearson Correlation ◽  
Brown Rice ◽  
Chemical Properties ◽  
Nutritional Composition ◽  
Health Food ◽  
Germinated Brown Rice ◽  
Rice Varieties ◽  
Physico Chemical ◽  
Gaba Content

Germinated brown rice (GBR) is an emerging health food that has received attention due to its nutritional composition, especially Gamma Amino Butyric Acid (GABA). The objective of this research was to germinate two brown rice varieties MTU 1010 and KNM 118 at various germination hours (0, 12, 24, 36, 48, 72 hours) to determine the best yield and correlate with the nutritional composition and GABA content. Brown rice soaked in water for 12 hours at 28 ± 2ºC followed by 24 to 36 hours germination was found to have optimum yield (85%) with good nutritional and GABA content. Protein, fat, crude fiber, carbohydrate content and energy content among all samples were highest at 24 hours and 36 hours of germination. Pearson correlation coefficient performed between yield, germination hours and nutritional parameters of both varieties, indicated a positive correlation between germination hours and GABA content in both varieties.

scholarly journals Germination of Six Indonesian Brown Rice: Evaluation of Antioxidant, Bioactive Compounds, Fatty Acids and Pasting Properties

2020 ◽  
Author(s):  
Hadi Munarko ◽  
Azis Boing Sitanggang ◽  
Feri Kusnandar ◽  
Slamet Budijanto
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Bioactive Compounds ◽  
Phenolic Content ◽  
Brown Rice ◽  
Pasting Properties ◽  
Germinated Brown Rice ◽  
Rice Varieties ◽  
Gaba Content ◽  
Fatty Acid Compositions

Abstract BackgroundGermination can improve the palatability and alter physicochemical, nutritional, and nutraceutical value of brown rice. This study aimed to evaluate the antioxidant, bioactive compounds, fatty acids, and pasting profiles from six Indonesian brown rice varieties during germination. The germination was carried out through a complete soaking method for up to 120 h, and the samples were taken every 24 h germination. ResultsThe results showed that germination increased GABA content in brown rice. The highest level of GABA, up to 126.55 mg/100g, obtained in rice var. Inpari 43, after 120 h. Germination also affected the phenolic content, antioxidant capacity, and γ-oryzanol content, but no consistent trends were observed among the varieties. Fatty acid compositions of germinated brown rice showed no changes during germination. The pasting properties of samples changed significantly after germination, especially in peak viscosity, final viscosity, breakdown, and setback value. ConclusionIn conclusion, the changes in brown rice characteristics during germination, especially for increased GABA content and shifting of pasting properties, are valuable information for developing functional rice-based food products.

scholarly journals The Physical and Chemical Characteristic of 3 Varietas of Germination Brown Rice (Mentik susu, Ciherang, and Pandan wangi)

2021 ◽  
Vol 5 (2) ◽  
pp. 63
Author(s):  
Dwi Eva Nirmagustina
Keyword(s):  
Brown Rice ◽  
Chemical Characteristic ◽  
Chemical Characteristics ◽  
Germinated Brown Rice ◽  
Rice Varieties ◽  
Germination Time ◽  
Physical And Chemical Characteristics ◽  
Germination Process ◽  
The Difference ◽  
Physical And Chemical

Brown rice has physical and sensory characteristics that are less favorable despite its high content of nutrition and phytochemical. The germination process is one way to improve and increase the acceptance of brown rice. The objective research was to determine germination time and varieties of brown rice on the physical and chemical characteristics of germinated brown rice. The research was conducted in RAL with 2 factors, germination time (24, 48, and 72 hours) and rice varieties (Mentik susu, Ciherang, and Pandan wangi). The data obtained were processed with analysis of variance to determine the effect of treatment on the parameters tested. If the effect is significant, then to determine the difference between treatments, a Tukey test is performed. Germination time of 24, 48, and 72 hours affected the color, germination, weight, dimensions of lenght, width, and thickness, bulk density, hydration capacity and swelling of germinated brown rice var. Mentik susu, Ciherang, and Pandan wangi. Germination time of 24, 48, 72 hours affected the chemical composition of BCG var. Mentik susu, Ciherang, and Pandan wangi. Based on observations of the physical and chemical characteristics of BCG var. Mentik susu, Ciherang, and Pandan wangi, germination time of 48 hours is recommended to do the germination with germination time of 48 hours compared to germination time of 24 and 72 hours.

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