Preparation and Characterization of Amorphous Ce1−xZrxW2O8Fine Particles for Environmental-friendly Yellow Pigments

2005 ◽  
Vol 34 (10) ◽  
pp. 1322-1323 ◽  
Author(s):  
Toshiyuki Masui ◽  
Shinya Furukawa ◽  
Nobuhito Imanaka
Keyword(s):  
Environmental Friendly ◽  
Yellow Pigments

Development and characterization of a thermoresponsive polysulfone membrane using an environmental friendly technology

2009 ◽  
Vol 11 (5) ◽  
pp. 638 ◽  
Author(s):  
Márcio Temtem ◽  
Daniel Pompeu ◽  
Telma Barroso ◽  
João Fernandes ◽  
Pedro C. Simões ◽  
...  
Keyword(s):  
Polysulfone Membrane ◽  
Environmental Friendly

ChemInform Abstract: Environmental-Friendly Yellow Pigments Based on Zr Doped Y4MoO9.

ChemInform ◽  
2016 ◽  
Vol 47 (50) ◽  
Author(s):  
Shuaifeng Chen ◽  
Mengjun Cai ◽  
Xinsheng Ma
Keyword(s):  
Environmental Friendly ◽  
Yellow Pigments

scholarly journals A Review on Characterization of Sediments for Green Bricks Production

2018 ◽  
Vol 7 (4.35) ◽  
pp. 41
Author(s):  
L. W. Ean ◽  
M. A. Malek ◽  
Bashar S. Mohammed ◽  
Chao-Wei Tang ◽  
P. X. H. Bong
Keyword(s):  
Heavy Metals ◽  
Particle Size ◽  
Environmental Concern ◽  
Leaching Test ◽  
Contaminated Sediment ◽  
Dredged Sediment ◽  
Environmental Friendly ◽  
Regulatory Limits ◽  
Viable Solution

Accumulation of dredged sediment has raised environmental concern in various countries. Recycling of sediment into bricks is a viable solution to the environmental pollution. Concerning to the utilization of sediment in bricks, this study reviews the needs of characterization on sediment and methods of producing sediment bricks. Particle size distribution was found to be the key criteria for characterization of sediment. Sizes of particles determined the function of the sediments in the bricks. In spite of that, leachability of heavy metals is another important aspect for contaminated sediment. Cementing bricks used cementing materials as the stabilization agent to the heavy metals. It is necessary to conduct leaching test for the end-product of the sediment to ensure the heavy metals leached are within the regulatory limits. In conclusion, method of producing sediment bricks may vary due to the various characteristics of sediment for a promising environmental friendly production.  

scholarly journals Improvement of Collapsible Soil Behavior of a Lateritic Soil Using Rice Husk Ash

2015 ◽  
Vol 668 ◽  
pp. 290-296 ◽  
Author(s):  
Luiza P. Fagundes ◽  
Jhaber D. Yacoub ◽  
Andrey C. Lima ◽  
Flávia R. Nakatsuchi ◽  
José A. Lollo ◽  
...  
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Combined Effect ◽  
Building Construction ◽  
Lateritic Soil ◽  
Soil Behavior ◽  
Collapsible Soil ◽  
Lateritic Soils ◽  
Environmental Friendly

Great areas of Brazil present lateritic soils, such as the northeast and the south. Some of these soils have, as main characteristic, instable structures that can present considerable volumetric deformation in the presence of water. This behavior, also named collapse, is responsible for several problems on the building construction such as cracks and fractures that can damage the safety of structures. The aim of this paper is to assess the possibility of improvement of collapsible behavior of a lateritic soil using rice husk ash (RHA). A previous characterization of soil and RHA was performed in order to assess the combined effect of soil/RHA. The results are so promising, showing a new alternative to reduce the collapsible behavior of soils using an environmental friendly technology.

Preparation and Characterization of Silica Nanotubes with Cellulose as Template

2016 ◽  
Vol 851 ◽  
pp. 61-65 ◽  
Author(s):  
Kun Li Cao ◽  
Yan Wu ◽  
Jun Wang ◽  
Xiao Yu Hui ◽  
Xiao Tang Wang
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Cellulose Nanocrystals ◽  
Thermal Field ◽  
Sol Gel ◽  
Silica Nanotubes ◽  
Environmental Friendly ◽  
Natural Cellulose ◽  
Scanning Electron

Cellulose is a kind of renewable biological template with complex microstructure. Surface sol-gel technology, a practical and environmental-friendly approach to produce silica nanotubes, was discussed in this paper. A series of characterization techniques, namely thermal field emission scanning electron microscopy (SEM), and Aztec X-act spectrometer were used to characterize these samples. The design of the nanotube structure was achieved by natural cellulose and cellulose nanocrystals (CNC), and this nanocopying methodology provided silica nanotubes of cellulose template in nanometer precision.

scholarly journals Characterization of Tambjamines Pigment from Marine Bacterium Pseudoalteromonas sp. PM2 Indigenous from Alor Island, Indonesia

2021 ◽  
Vol 3 (1) ◽  
pp. 16-23
Author(s):  
Edi Setiyono ◽  
Marcelinus Alfasisurya Setya Adhiwibawa ◽  
Matheus Randy Prabowo ◽  
Tatas H.P. Brotosudarmo
Keyword(s):  
16S Rrna ◽  
Marine Bacteria ◽  
Marine Bacterium ◽  
Rrna Gene ◽  
Accession Number ◽  
16S Rrna Gene Sequences ◽  
Different Types ◽  
New Finding ◽  
Yellow Pigments

Pigments from marine bacteria have attracted the attention for scientists because of their extensive applications and currently exploration of new pigment sources from marine bacteria is still ongoing. Recently, we have successfully isolated six new yellow-pigmented marine bacteria, strain PS2, PM2, SB11, SB13, SB21, and SB23, isolated from seawater from different sampling sites on Alor Island, Indonesia. The UV−Vis and FTIR spectra of the crude pigment extracts of the six strains showed the characteristics of tambjamines, a group of yellow pigments commonly found in nudibranchs and bryozoans. Moreover, separation and characterization of crude tambjamines extract resulted in five different types of tambjamine with maximum absorbance at the wavelength of 374−392 nm. Based on the analysis of 16S rRNA gene sequences, strain PM2 was closely related to several species in genus Pseudoalteromonas with a similarity of more than 99%. Strain PM2 was designed as Pseudoalteromonas sp. PM2 with accession number LC505058. So far, only two marine bacteria have been known to produce tambjamine and they are from genus Pseudoalteromonas. Our new finding indicated that in the group of marine bacteria, tambjamine might be only synthesized by members from genus Pseudoalteromonas. 

scholarly journals Phytoene synthase 1 (Psy-1) and lipoxygenase 1 (Lpx-1) Genes Influence on Semolina Yellowness in Wheat Mediterranean Germplasm

2020 ◽  
Vol 21 (13) ◽  
pp. 4669 ◽  
Author(s):  
Roberto Parada ◽  
Conxita Royo ◽  
Agata Gadaleta ◽  
Pasqualina Colasuonno ◽  
Ilaria Marcotuli ◽  
...  
Keyword(s):  
Grain Filling ◽  
Yellow Pigment ◽  
Phytoene Synthase ◽  
Carotenoid Content ◽  
Carotenoid Pigments ◽  
Grain Development ◽  
Yellow Pigment Content ◽  
Yellow Color ◽  
Yellow Pigments

Phytoene synthase 1 (Psy1) and lipoxygenase 1 (Lpx-1) are key genes involved in the synthesis and catalysis of carotenoid pigments in durum wheat, regulating the increase and decrease in these compounds, respectively, resulting in the distinct yellow color of semolina and pasta. Here, we reported new haplotype variants and/or allele combinations of these two genes significantly affecting yellow pigment content in grain and semolina through their effect on carotenoid pigments. To reach the purpose of this work, three complementary approaches were undertaken: the identification of QTLs associated to carotenoid content on a recombinant inbred line (RIL) population, the characterization of a Mediterranean panel of accessions for Psy1 and Lpx-1 genes, and monitoring the expression of Psy1 and Lpx-1 genes during grain filling on two genotypes with contrasting yellow pigments. Our data suggest that Psy1 plays a major role during grain development, contributing to semolina yellowness, and Lpx-1 appears to be more predominant at post-harvest stages and during pasta making.

Isolation and Structural Characterization of New Anthocyanin-Derived Yellow Pigments in Aged Red Wines

2006 ◽  
Vol 54 (25) ◽  
pp. 9598-9603 ◽  
Author(s):  
Jingren He ◽  
Celestino Santos-Buelga ◽  
Artur M. S. Silva ◽  
Nuno Mateus ◽  
Victor de Freitas
Keyword(s):  
Structural Characterization ◽  
Red Wines ◽  
Yellow Pigments
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