Category: alcohols-buliding-blocks

Lee, Jic-Hyun published the artcileProduction of γ-Aminobutyric Acid and Its Supplementary Role in the TCA Cycle in Rice (Oryza sativa L.) Seedlings., Related Products of alcohols-buliding-blocks, the main research area is Oryza seed germination gamma aminobutyric acid TCA cycle.

In this study, we analyzed GABA shunt-related amino acids [glutamate (Glu), alanine (Ala), and GABA] and tricarboxylic acid (TCA)-cycle-related organic acids (pyruvate, citrate, α-ketoglutarate, succinate, fumarate, and malate) in rice, under dark and anaerobic conditions, to investigate the role of GABA in rice germination. The change in the GABA content before and after germination was compared using 2 cultivars selected from 18 varieties of Korean rice. Correlation anal. indicated that the metabolism of GABA in germinating rice might be related to Ala metabolism In a two-way stress study, GABA content was found to be pos. related to TCA-cycle organic acid contents (α-ketoglutarate, succinate, fumarate, and malate) but show a neg. relation with GABA shunt-related amino acid contents (Glu, Ala). In the dark, accumulation of TCA-cycle organic acids was observed, but Glu and Ala levels were reduced. GABA treatment (1 mM) in dark conditions produced TCA-cycle organic acids at levels similar to those in light conditions. In anaerobic conditions, TCA-cycle-related compounds accumulated at a high level, but Glu and Ala were remarkably reduced compared with normal conditions. As a result, GABA shunt is connected with TCA-cycle organic acids, but not amino acids. In conclusion, the present research suggests that GABA, accumulated in certain stress conditions, supplies organic acids such as succinate to the TCA cycle.

Journal of Plant Growth Regulation published new progress about Germination. 97-67-6 belongs to class alcohols-buliding-blocks, name is (S)-2-hydroxysuccinic acid, and the molecular formula is C4H6O5, Related Products of alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Tapki, Ibrahim published the artcileEffects of oregano essential oil on reduction of weaning age and increasing economic efficiency in Holstein Friesian calves, Recommanded Product: rel-(1R,2R,4R)-1,7,7-Trimethylbicyclo[2.2.1]heptan-2-ol, the main research area is oregano essential oil fed milk diarrhea growth weaning.

This study examined the potential use of oregano essentail oil as a milk additive for purposes of reducing weaning age; increasing economic efficiency; promoting calf growth as well as for improving blood parameters and general health status of Holstein Friesian calves. Twenty-eight Holstein Friesian calves were allocated into three groups: (a) Control calves were fed with whole milk (n=10), (b) OreganoLow (n=9), and (c) OreganoHigh (n=9) calves were fed with whole milk, plus 100 and 150 mg/l oregano essential oil per kg milk resp. The amount of the milk offered on daily basis was calculated as 10% of each calf live weight and was given in two meal times. All calves were kept in individual pens during exptl. period. Calves got weaned following the consumption of daily 900 g of concentrate feed over three consecutive days. Results demonstrated that OreganoLow calves marked improved growth performance, earlier weaning age and lower farm costs (P < 0.05) compared to Control and OreganoHigh calves. To conclude, dietary oregano essential oil seems to be a potential liquid feed additive that improves feed efficiency, health status, growth performance, and that reduces diarrhea incidents, hastens weaning age and minimizes dairy farm costs when used at the level of 100 mg/l. Pakistan Journal of Zoology published new progress about Body weight. 124-76-5 belongs to class alcohols-buliding-blocks, name is rel-(1R,2R,4R)-1,7,7-Trimethylbicyclo[2.2.1]heptan-2-ol, and the molecular formula is C10H18O, Recommanded Product: rel-(1R,2R,4R)-1,7,7-Trimethylbicyclo[2.2.1]heptan-2-ol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Sacligil, Ipek published the artcileBond strength regime dictates stress relaxation behavior, Application In Synthesis of 7575-23-7, the main research area is insitu crosslinked metal terpyridine norbornene polymer network bond strength.

Reconfigurable polymer networks are gaining interest for their potential applications as self-healing, recyclable, and stimuli-responsive smart materials. Relating the bond strength of dynamic interactions to material properties including stress relaxation time and modulus is crucial for smart material design. In this work, in situ crosslinked transition metal-terpyridine reconfigurable networks were utilized to modulate the characteristic network stress relaxation time, τR. The use of stress relaxation experiments rather than oscillatory frequency sweeps allowed for the measurement of network bond dynamics across a wider dynamic range than has been previously reported. The stress relaxation time was shown to be tunable by metal center, counterion, and crosslink d. Remarkably, the network crosslinked with covalent-like ruthenium chloride-terpyridine interaction, while having a longer τR, was qual. similar to the other metal-ligand networks. Furthermore, the relaxation time was independent of crosslink d. in strongly bonded networks, allowing for independent tunability of modulus and τR. In contrast, increasing crosslink d. reduced τR in networks crosslinked with weaker interactions.

Soft Matter published new progress about Bond energy. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, Application In Synthesis of 7575-23-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Saric, Ankica published the artcileSolvothermal synthesis of zinc oxide nanoparticles: A combined experimental and theoretical study, Safety of n-Octanol, the main research area is zinc oxide nanoparticle solvothermal synthesis.

Zinc oxide particles were synthesized from zinc acetylacetonate in the presence of triethanolamine (TEA) and various alc. solvent, ethanol or octanol, at 170°. The structural, optical, and morphol. characteristics of ZnO particles were monitored using X-ray powder diffraction (XRD), UV-Vis and FT-IR spectroscopies, and field emission SEM (FE-SEM). The exptl. findings were confirmed by means of DFT calculations which were obtained in nonpolar alc. 1-octanol, as a follow up to our previous study in polar ethanol. The nucleation and formation mechanism of ZnO nanoparticles is proposed considering the results obtained from a computational study of Gibbs free energies of ZnO-TEA mol. interactions (ΔG*INT) in various solvent system. The calculations revealed different binding affinities which initiated the nucleation processes of ZnO nanoparticles in the presence of alcs. of different size and polarity. The high chelating efficiency of TEA towards zinc with tetrahedral geometry is observed The results of X-ray diffraction size-strain anal. indicate the presence of size anisotropy as well as a reduction in the ZnO crystallite size with the change of solvent from ethanol to 1-octanol (<10 nm). Journal of Molecular Structure published new progress about Bond length. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Safety of n-Octanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Liu, Shengnan published the artcileStructural characterization of a novel polysaccharide from Panax notoginseng residue and its immunomodulatory activity on bone marrow dendritic cells, Quality Control of 59-23-4, the main research area is Panax polysaccharide bone marrow dendritic cell immunomodulation; Bone marrow dendritic cells; Immunomodulatory adjuvant; Panax notoginseng (Burk.) F. H. Chen; Polysaccharide; Structural characterization.

This study isolated and characterized a novel polysaccharide (PNPS-0.3) from the residue of Panax notoginseng by gradient elution. PNPS-0.3 mainly consisted of a backbone of →4)- α-D-GalAp-(1 → 4-β-L-Rhap-1 → 4)-β-D-Galp-(1 → residues, with an α-L-Araf-1 → 5)-α-L-Araf-(1 → branch connecting to the backbone at O-3 of →4-β-L-Rhap-1 → and a mol. weight of 76,655 Da. Furthermore, the adjuvant potential of PNPS-0.3 with bone marrow dendritic cells (BMDCs) was investigated. The results suggested that PNPS-0.3 could induce maturation of BMDCs by reshaping the morphol., upregulating the CD40, CD80, CD86 and MHC II membrane phenotypic markers, and by promoting the secretion of TNF-α and IL-12 proinflammatory cytokines. Moreover, PNPS-0.3 can trigger the DC-induced T-cell immune response, as indicated by the higher expressions of CD4, CD8, CD69, and MHC II in T cells with increased secretion of INF-β. PNPS-0.3 also upregulated the expressions of Myd88, IKKβ, P-P65, T-P65, and NF-κB, suggesting that the TLR4/TLR2-NF-κB signaling pathway was involved in the immunomodulatory mechanism. In conclusion, the immunoadjuvant potential of novel PNPS-0.3 was characterized, which is beneficial for the future utilization and development of P. notoginseng.

International Journal of Biological Macromolecules published new progress about Bone marrow. 59-23-4 belongs to class alcohols-buliding-blocks, name is (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, and the molecular formula is C6H12O6, Quality Control of 59-23-4.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Cilloni, Daniela published the artcileIron overload alters the energy metabolism in patients with myelodysplastic syndromes: results from the multicenter FISM BIOFER study, Recommanded Product: (S)-2-hydroxysuccinic acid, the main research area is myelodysplastic syndrome iron metabolism.

Abstract: Myelodysplastic syndromes (MDS) are hematol. malignancies characterized by ineffective hematopoiesis and increased apoptosis in the bone marrow, which cause peripheral cytopenia. Although the energy metabolism could represent an attractive therapeutic target, it was poorly investigated in MDS. The purpose of the study was to analyze how the presence of myelodysplastic hematopoiesis, iron overload and chelation impact on mitochondrial metabolism We compared energy balance, OxPhos activity and efficiency, lactic dehydrogenase activity and lipid peroxidation in mononuclear cells (MNCs), isolated from 38 MDS patients and 79 healthy controls. Our data show that ATP/AMP ratio is reduced during aging and even more in MDS due to a decreased OxPhos activity associated with an increment of lipid peroxidation Moreover, the lactate fermentation enhancement was observed in MDS and elderly subjects, probably as an attempt to restore the energy balance. The biochem. alterations of MNCs from MDS patients have been partially restored by the in vitro iron chelation, while only slight effects were observed in the age-matched control samples. By contrast, the addition of iron chelators on MNCs from young healthy subjects determined a decrement in the OxPhos efficiency and an increment of lactate fermentation and lipid peroxidation In summary, MDS-MNCs display an altered energy metabolism associated with increased oxidative stress, due to iron accumulation. This condition could be partially restored by iron chelation.

Scientific Reports published new progress about Bone marrow. 97-67-6 belongs to class alcohols-buliding-blocks, name is (S)-2-hydroxysuccinic acid, and the molecular formula is C4H6O5, Recommanded Product: (S)-2-hydroxysuccinic acid.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

OReilly, Matthew C. published the artcileDiscovery-Based Bromination of Alcohols: An Organic Chemistry Experiment Supporting Spectroscopic Analysis and Mechanistic Reasoning, Quality Control of 584-02-1, the main research area is isomeric alc bromination laboratory experiment.

The bromination of six isomeric alcs. is adapted to a discovery-based organic chem. laboratory experiment, whereby students are provided an alc. starting material and are charged with determining the product or product mixture produced using relevant spectroscopic data. The experiment solidifies NMR anal. skills while reinforcing the mechanistic reasoning that supports the study of organic reactions. The laboratory is highly customizable and can be adapted to align with available instrumentation to best meet the needs of students, and it has been successfully implemented at three sep. universities.

Journal of Chemical Education published new progress about Bromination. 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, Quality Control of 584-02-1.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Sa’adiyah, Devy Setiorini published the artcileSpatial Evolution of CO2-Contaminated Water Bubble Flows in a Vertical Pipe, COA of Formula: C8H18O, the main research area is carbon dioxide contaminated water bubble flow vertical pipe.

Experiments on CO2-water bubble flows in a vertical pipe were carried out for clean water, an aqueous NaCl solution, and an aqueous NaCl solution with 1-octanol to obtain databases of spatial evolutions of the flows with the impurities. Mass transfer correlations for bubbles in these liquids were implemented into a one-way bubble tracking method. Numerical predictions of the spatial evolution, e.g., transition from a bubbly to a slug flow, depending on the impurities agreed well with the experiments

Chemie Ingenieur Technik published new progress about Bubble flow. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, COA of Formula: C8H18O.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Zhao, Xiang-Sheng published the artcileGas chromatography-mass spectrometry for quantitative and qualitative analysis of essential oil from Curcuma wenyujin rhizomes, Name: rel-(1R,2R,4R)-1,7,7-Trimethylbicyclo[2.2.1]heptan-2-ol, the main research area is Curcuma wenyujin rhizome essential oil GCMS.

A rapid and sensitive gas chromatog.-mass spectrometry (GC-MS) method for quant. and qual. anal. of essential oil from Curcuma wenyujin rhizomes was established. The essential oil of C. wenyujin rhizomes was extracted by supercritical CO2 extraction (SFE). Six main bioactive compounds (eucalyptol, β-elemene, curzerene, germacrone, curdione, and curcumol) were analyzed in selected ion monitoring mode (SIM). Curzerene is not originally present in C. wenyujin rhizomes, but is a product of the transformation of furanodiene at high temperature The six target components demonstrated good linearity (R2 > 0.9979) over a relatively wide concentration range. The interday and intraday variations had relative standard deviation values less than 5% and the average recovery ranged from 96.95% to 100.04%. The limit of quantitation ranged from 0.032 to 0.235 μg/mL. The developed method was successfully used to analyze the six compounds in 17 samples collected from different origins. Significant variation was observed for the concentrations of the six compounds In addition, 51 constituents were identified in C. wenyujin rhizome essential oil, consisting of 87.66% of the total essential oil, including curdione, curzerene, dehydrocurdione, germacrone, 1,4-bis(2-benzimidazoyl)benzene, neocurdione, curcumenone, and β-elemene. The proposed method will be useful in the quality control of C. wenyujin rhizome essential oil production

World Journal of Traditional Chinese Medicine published new progress about Calibration. 124-76-5 belongs to class alcohols-buliding-blocks, name is rel-(1R,2R,4R)-1,7,7-Trimethylbicyclo[2.2.1]heptan-2-ol, and the molecular formula is C10H18O, Name: rel-(1R,2R,4R)-1,7,7-Trimethylbicyclo[2.2.1]heptan-2-ol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Matsuo, Teruko published the artcileIntegrated Strategy for Unknown EI-MS Identification Using Quality Control Calibration Curve, Multivariate Analysis, EI-MS Spectral Database, and Retention Index Prediction, HPLC of Formula: 64519-82-0, the main research area is EI mass spectra identification.

Compound identification using unknown electron ionization (EI) mass spectra in gas chromatog. coupled with mass spectrometry (GC-MS) is challenging in untargeted metabolomics, natural product chem., or exposome research. While the total count of EI-MS records included in publicly or com. available databases is over 900 000, efficient use of this huge database has not been achieved in metabolomics. Therefore, we proposed a “”four-step”” strategy for the identification of biol. significant metabolites using an integrated cheminformatics approach: (i) quality control calibration curve to reduce background noise, (ii) variable selection by hypothesis testing in principal component anal. for the efficient selection of target peaks, (iii) searching the EI-MS spectral database, and (iv) retention index (RI) filtering in combination with RI predictions. In this study, the new MS-FINDER spectral search engine was developed and utilized for searching EI-MS databases using mass spectral similarity with the evaluation of false discovery rate. Moreover, in silico derivatization software, MetaboloDerivatizer, was developed to calculate the chem. properties of derivative compounds, and all retention indexes in EI-MS databases were predicted using a simple math. model. The strategy was showcased in the identification of three novel metabolites (butane-1,2,3-triol, 3-deoxyglucosone, and palatinitol) in Chinese medicine Senkyu for quality assessment, as validated using authentic standard compounds All tools and curated public EI-MS databases are freely available in the ‘Computational MS-based metabolomics’ section of the RIKEN PRIMe Web site (http://prime.psc.riken.jp).

Analytical Chemistry (Washington, DC, United States) published new progress about Calibration. 64519-82-0 belongs to class alcohols-buliding-blocks, name is (3R,4R,5R)-6-(((2S,3R,4S,5S,6R)-3,4,5-Trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)hexane-1,2,3,4,5-pentaol, and the molecular formula is C12H24O11, HPLC of Formula: 64519-82-0.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts