Author: tianli

Hu, Yan published the artcileGossypium barbadense and Gossypium hirsutum genomes provide insights into the origin and evolution of allotetraploid cotton, Product Details of C4H6O5, the main research area is Gossypium allotetraploidy whole genome evolution.

Allotetraploid cotton is an economically important natural-fiber-producing crop worldwide. After polyploidization, Gossypium hirsutum L. evolved to produce a higher fiber yield and to better survive harsh environments than Gossypium barbadense, which produces superior-quality fibers. The global genetic and mol. bases for these interspecies divergences were unknown. Here we report high-quality de novo-assembled genomes for these two cultivated allotetraploid species with pronounced improvement in repetitive-DNA-enriched centromeric regions. Whole-genome comparative analyses revealed that species-specific alterations in gene expression, structural variations and expanded gene families were responsible for speciation and the evolutionary history of these species. These findings help to elucidate the evolution of cotton genomes and their domestication history. The information generated not only should enable breeders to improve fiber quality and resilience to ever-changing environmental conditions but also can be translated to other crops for better understanding of their domestication history and use in improvement.

Nature Genetics published new progress about Cell wall. 97-67-6 belongs to class alcohols-buliding-blocks, name is (S)-2-hydroxysuccinic acid, and the molecular formula is C4H6O5, Product Details of C4H6O5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Khorasani, Reza published the artcileHydrogen production from dairy wastewater using catalytic supercritical water gasification: Mechanism and reaction pathway, Formula: C4H10OS, the main research area is hydrogen production dairy wastewater catalytic supercritical water gasification.

The supercritical water gasification (SCWG) of real dairy wastewater (cheese-based or whey) was performed in a batch reactor in presence of two catalysts (MnO2, MgO) and one additive (formic acid). The operational conditions of this work were at a temperature range of 350-400 C and the residence time of 30-60 min. The catalysts and formic acid were applied in 1 wt%, 3 wt%, and 5 wt% to determine their effect on hydrogen production The concentrations of catalysts and formic acid were calculated based on the weight of feedstock without ash. The results showed that increased temperature and prolonged residence time contributed to the hydrogen production (HP) and gasification efficiency (GE). The gas yield of hydrogen in the optimum condition (400 C and 60 min) was achieved as 1.36 mmol/gr DAF (dry ash free). Formic acid addition was favored towards enhancing hydrogen content while the addition of metal oxides (MnO2 and MgO) had an apex in their hydrogen production and they reached the highest hydrogen in 1 wt% concentration then ebbed. Moreover, GE was increased by the addition of the catalysts and formic acid concentrations The highest hydrogen content (35.4%) was obtained in 1 wt% MnO2 and the highest GE (32.22%) was attained in the 5 wt% formic acid concentration A reaction pathway was proposed based on the GC-MS data of feedstock and produced liquid phase at different condition as well as similar studies.

International Journal of Hydrogen Energy published new progress about Catalysts. 505-10-2 belongs to class alcohols-buliding-blocks, name is 3-(Methylthio)propan-1-ol, and the molecular formula is C4H10OS, Formula: C4H10OS.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Karanjit, Sangita published the artcileA heterogeneous bifunctional silica-supported Ag2O/Im+Cl- catalyst for efficient CO2 conversion, Name: 3,5-Dimethylhex-1-yn-3-ol, the main research area is silica silver oxide imidazolium salt catalyst carbon dioxide conversion.

A silica-supported bifunctional heterogeneous catalytic system was developed based on imidazolium salt (Im+Cl-@SiO2) as an activator. The Im+Cl-@SiO2 activated both the Ag-catalyst and substrate for the carboxylative cyclization reaction of alcs. by the efficient utilization of CO2 under ambient conditions. The catalyst is quite stable and versatile and could be stored without the need of a protective atm. We also confirmed the reusability of the catalyst up to five cycles. Our catalytic system performed very well not only for the two-component reaction of propargyl alcs./amines with CO2, but also for the three-component reaction of propargyl alcs., CO2, and other alcs./amines with excellent yields of the corresponding carbonates and carbamates under mild reaction conditions. This system secures the advantages of both homogeneous and heterogeneous catalysis of ammonium salts with good activity, as well as easy isolation of the product and easy recovery of the catalyst.

Catalysis Science & Technology published new progress about Catalysts. 107-54-0 belongs to class alcohols-buliding-blocks, name is 3,5-Dimethylhex-1-yn-3-ol, and the molecular formula is C8H14O, Name: 3,5-Dimethylhex-1-yn-3-ol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Wu, Haijun published the artcilePromoting the conversion of poplar to bio-oil based on the synergistic effect of alkaline hydrogen peroxide, Application of 3-Pentanol, the main research area is bio oil conversion synergistic effect alk hydrogen peroxide.

The synergistic catalysis effect of NaOH and H2O2 on the hydrothermal liquefaction (HTL) of poplar was investigated and compared to the NaOH or H2O2 catalyzed HTL at different temperatures and 30 min residence time. GC-MS, GPC, FT-IR, HPLC and TGA were used to comprehensively characterize the phys. and chem. properties of liquefied products (bio-oil, lignin and solid residue). The results showed that the highest total bio-oil yield (70.65%) was obtained at 280°C with NaOH (35 g/L)/H2O2 (30 g/L) as catalysts. The average mol. weight and polydispersity index (PDI) were found to be lower compared to that from other conditions. As the NaOH concentration was increased, the bio-oil yield was improved. The concentration of H2O2 for the optimal synergistic effect was observed to be 30 g/L. GC-MS anal. showed that the bio-oil obtained by NaOH (35 g/L)/H2O2 (30 g/L) was characterized with the lowest N content. The synergistic effect promoted the higher production selectivity of o-xylene and p-xylene in the bio-oil.

Renewable Energy published new progress about Catalysis. 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, Application of 3-Pentanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Li, Zhengxin published the artcileGrowth Rates of Hydrogen Microbubbles in Reacting Femtoliter Droplets, Computed Properties of 111-87-5, the main research area is growth rate hydrogen microbubble reaction femtoliter droplet.

Chem. reactions in small droplets are extensively explored to accelerate the discovery of new materials and increase the efficiency and specificity in catalytic biphasic conversion and high-throughput analytics. In this work, we investigate the local rate of the gas-evolution reaction within femtoliter droplets immobilized on a solid surface. The growth rate of hydrogen microbubbles (�00 nm in radius) produced from the reaction was measured online with high-resolution confocal microscopic images. The growth rate of bubbles was faster in smaller droplets and near the droplet rim in the same droplet. The results were consistent for both pure and binary reacting droplets and on substrates of different wettability. Our theor. anal. based on diffusion, chem. reaction, and bubble growth predicted that the concentration of the reactant depended on the droplet size and the bubble location inside the droplet, in good agreement with exptl. results. Our results reveal that the reaction rate may be spatially nonuniform in the reacting microdroplets. The findings may have implications for formulating the chem. properties and uses of these droplets.

Langmuir published new progress about Catalysis. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Computed Properties of 111-87-5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Muralidharan, Archish published the artcileStereolithographic 3D Printing for Deterministic Control over Integration in Dual-Material Composites, SDS of cas: 7575-23-7, the main research area is resin polyethylene glycol hydrogel 3D printing tissue engineering; 3D printing; composites; hydrogels; integration; interface.

A rapid and facile approach to predictably control integration between two materials with divergent properties is introduced. Programmed integration between photopolymerizable soft and stiff hydrogels is investigated due to their promise in applications such as tissue engineering where heterogeneous properties are often desired. The spatial control afforded by grayscale 3D printing is leveraged to define regions at the interface that permit diffusive transport of a second material in-filled into the 3D printed part. The printing parameters (i.e., effective exposure dose) for the resin are correlated directly to mesh size to achieve controlled diffusion. Applying this information to grayscale exposures leads to a range of distances over which integration is achieved with high fidelity. A prescribed finite distance of integration between soft and stiff hydrogels leads to a 33% increase in strain to failure under tensile testing and eliminates failure at the interface. The feasibility of this approach is demonstrated in a layer-by-layer 3D printed part fabricated by stereolithog., which is subsequently infilled with a soft hydrogel containing osteoblastic cells. In summary, this approach holds promise for applications where integration of multiple materials and living cells is needed by allowing precise control over integration and reducing mech. failure at contrasting material interfaces.

Advanced Materials Technologies (Weinheim, Germany) published new progress about Cartilage. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, SDS of cas: 7575-23-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Pichon, Maeva M. published the artcileTight-binding inhibition of jack bean α-mannosidase by glycoimidazole clusters, Quality Control of 22483-09-6, the main research area is tight binding jack bean mannosidase glycoimidazole cluster inhibition.

The best multivalent effects observed in glycosidase inhibition have been achieved so far with jack bean α-mannosidase (JBα-man) using iminosugar clusters based on weakly binding mismatching active-site-directed inhibiting epitopes (inhitopes) in the D-gluco series. Here, we synthesize and evaluate as JBα-man inhibitors a series of mono- to 14-valent glycoimidazoles with inhitopes displaying inhibition values up to the range of hundreds of nMs to study the impact of inhitope affinity on the multivalent effect. The most potent inhibitor of the series, a 14-valent mannoimidazole derivative, inhibits JBα-man with a nanomolar Ki value (2 ± 0.5 nM) and binding enhancements observed are, at best, relatively small (up to 25-fold on a valency-corrected basis). The results of this study support the fact that JBα-man-inhitope affinity and the strength of the inhibitory multivalent effect evolve in the opposite direction. The major impact of the glycoimidazole-based inhitope is found on the binding scenario; most of the synthesized mannoimidazole clusters as well as a 14-valent glucoimidazole derivative prove to be tight binding inhibitors of JBα-man.

Organic & Biomolecular Chemistry published new progress about Canavalia. 22483-09-6 belongs to class alcohols-buliding-blocks, name is 2,2-Dimethoxyethanamine, and the molecular formula is C4H11NO2, Quality Control of 22483-09-6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Zhang, Xu published the artcileC4 photosynthetic enzymes play a key role in wheat spike bracts primary carbon metabolism response under water deficit, Synthetic Route of 97-67-6, the main research area is Triticum spike bract photosynthesis carbon metabolism water deficit; C4 photosynthetic enzymes; Carbon metabolism; Water deficit; Wheat spike bracts.

C4 photosynthetic enzymes are present in C3 plants and participate in non-photosynthetic metabolism Wheat spike bracts had a higher drought tolerance, photosynthesis and senesced later compared to the flag leaves under water deficit. This research was conducted to investigate the different response of primary carbon metabolism induced by C4 photosynthetic enzymes in wheat flag leaves and spike bracts including glumes and lemmas under water deficit. The activities of C4 photosynthetic enzymes and Ribulose bisphosphate carboxylase oxygenase (Rubisco), the expression of related genes and primary carbon metabolism contents were demonstrated in wheat flag leaves and spike bracts exposed to water deficit. Results showed that drought stress strongly inhibited wheat photosynthetic metabolism by decreasing Rubisco activity in flag leaves. The activities of phosphoenolpyruvate carboxylase (PEPC), NADP-malic enzyme (NADP-ME), phosphate dikinase (PPDK) and NADP- malic dehydrogenase (NADP-MDH) increased in wheat spike bracts under water deficit. Furthermore, the results indicated that drought stress induced changes in the contents of primary carbon metabolism including malate, oxaloacetic acid (OAA), citric, fumaric acid were organ-specific. In conclusion, the functions of C4 photosynthetic enzymes appear to be important for wheat spike bracts primary carbon metabolism and defense response under drought stress.

Plant Physiology and Biochemistry (Issy-les-Moulineaux, France) published new progress about C4 plants. 97-67-6 belongs to class alcohols-buliding-blocks, name is (S)-2-hydroxysuccinic acid, and the molecular formula is C4H6O5, Synthetic Route of 97-67-6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Mendes-Ferreira, Ana published the artcileProduction of blueberry wine and volatile characterization of young and bottle-aging beverages, Category: alcohols-buliding-blocks, the main research area is blueberry wine volatile compound; GC‐FID; GC‐MS; alcoholic fermentation; blueberry wine; bottle‐aging; volatile compounds.

The aim of this study was the production of blueberry wine and the characterization of the volatile compounds of fermented and aging in bottle products. Multivariate data anal. indicated similarity of volatile compounds released when fermentations were conducted at laboratory-scale and midscale, with the exception of one replicate creating a distinctive group characterized by low concentrations of acetaldehyde, methanol, 1-hexanol, and Et hexanoate, and the production of polyalcs. such as 2,3-butanediols. This experiment was the only one where no adjustments of YAN were performed. Some of the major volatile compounds (acetaldehyde, Et acetate, 2-methyl-1-butanol, 3-methyl-1-butanol, and 2-phenylethanol) were found above their perception thresholds. Esters and terpenic compounds were the groups of volatiles expressed the most in blueberry wines, followed by volatile fatty acids, alcs., and norisoprenoids (3-hydroxy-7,8-dihydro-β-ionone, 3-oxo-α-ionol, and 3-hydroxy-7,8-dihydro-β-ionol). The wines that experienced bottle-aging are characterized by high concentrations of Et esters, di-Et succinate, Et lactate, and di-Et malonate. The results contribute for deeper knowledge of the technol. procedure, anal. characteristics, and volatile compounds of blueberry wines, reinforcing the interest in this beverage and opening perspectives for further studies on the production of new blueberry-based products with differential characteristics that value its nutraceutical and functional properties.

Food Science & Nutrition (Hoboken, NJ, United States) published new progress about Blueberry. 505-10-2 belongs to class alcohols-buliding-blocks, name is 3-(Methylthio)propan-1-ol, and the molecular formula is C4H10OS, Category: alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Liu, Yaran published the artcileA high-resolution Orbitrap Mass spectral library for trace volatile compounds in fruit wines, Computed Properties of 505-10-2, the main research area is fruit wine blueberry gojiberry volatile compound odor HRMS library.

The overall aroma is an important factor of the sensory quality of fruit wines, which attributed to hundreds of volatile compounds However, the qual. determination of trace volatile compounds is considered to be very challenging work. GC-Orbitrap-MS with high resolution and high sensitivity provided more possibilities for the determination of volatile compounds, but without the high-resolution mass spectral library. For accuracy of qual. determination in fruit wines by GC-Orbitrap-MS, a high-resolution mass spectral library, including 76 volatile compounds, was developed in this study. Not only the HRMS spectrum but also the exact ion fragment, relative abundance, retention indexes (RI), CAS number, chem. structure diagram, aroma description and aroma threshold (ortho-nasally) were provided and were shown in a database website (Food Flavor Laboratory, http://foodflavorlab.cn/). HRMS library was used to successfully identify the volatile compounds mentioned above in 16 fruit wines (5 blueberry wines, 6 goji berry wines and 5 hawthorn wines). The library was developed as an important basis for further understanding of trace volatile compounds in fruit wines.

Scientific Data published new progress about Blueberry. 505-10-2 belongs to class alcohols-buliding-blocks, name is 3-(Methylthio)propan-1-ol, and the molecular formula is C4H10OS, Computed Properties of 505-10-2.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts