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Acetic Acid - Europe PMC

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Last Updated: 10 December 2022

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Dark-purple rice extract modulates gut microbiota composition in acetic acid- and indomethacin-induced inflammatory bowel disease in rats.

Ulcerative colitis and Crohn's disease are two common conditions of inflammatory bowel disease. Accumulating evidence has shown that treatment with biologically active chemicals can alter gut microbiota composition in animal models. We have also shown the anti-inflammatory properties of Luem Pua rice extract, which is high in anthocyanins, in our previous research. We investigated fecal microbiota of acetic acid-induced UC and indomethacin-induced CD rats models with and without pretreatment with LP rice extract by 16S rRNA gene sequencing. Both AA-induced UC and ID-induced CD altered gut microbiota populations of rats, according to the study. The indomethacin treatment with LP left a wealth of these beneficial bacteria and other SCFA-producing bacteria unaffected. Overall, our report found several benefits of AA-induced UC and ID-induced CD on community composition shifts, as well as suggestions for how LP can protect against UC by changing the gut microbiota.

Source link: https://europepmc.org/article/MED/36484910


Acetic Acid Ion Pairing Additive for Reversed-Phase HPLC Improves Detection Sensitivity in Bottom-up Proteomics Compared to Formic Acid.

Despite widespread use of formic acid as the additive of choice for peptide reversed-phase LC-MS/MS applications, some scientists maintain that choosing acetic acid is the safer alternative. We find an overall increase in MS signal and a small decrease in RP LC retention for acetic acid conditions, according to the relationship. Although these two features have conflicting effects on peptide detection, we find that acetic acid has a 60 percent higher peptide ID value depending on the type of sample. With peptide net charge at acidic pH, the decrease in RPLC retention increases.

Source link: https://europepmc.org/article/MED/36480176


Cobalt-based metalloporphyrins as efficient electro-catalysts for hydrogen evolution from acetic acid and water

Meso -tetra-X-phenylporphin reacetate was converted into electrolytic proton or water reduction by reaction with cobalt acetate by reaction with cobalt acetate, which was produced by a CoTPP based molecular electrocatalyst. The turn-over frequencies per hour for catalyst control were 42. 4, 38. 5, 55. 5, and 70. 1 mol H 2 with an overpotential of 941. 6 mv in the acetic acid solution containing catalyst, according to a controlled potential electrolysis study. For seven h of consecutive decline on a glassy carbon electrode, respectively, the Faraday efficiencies of complexes 1–u20134 were 99. 1, 99. 6, 100. 4, and 99. 0% at a 72 percent rate. These results show that the electronic properties of the ligands play a significant role in determining the catalytic activity of the cobalt complex, which is consistent with the finding that the benzene porphyrins' catalytic activity is significantly enhanced in the presence of electron-drawing groups is significantly elevated, and that the CoTPP is the most active catalyst.

Source link: https://europepmc.org/article/PPR/PPR581089


SUMO E3 ligase AtMMS21-dependent SUMOylation of AUXIN/INDOLE-3-ACETIC ACID 17 regulates auxin signaling.

Plant auxin changes can be detected and converted into cellular responses by auxin signal transduction. The AUXIN/INDOLE-3-ACETIC ACID proteins are auxin transcriptional inhibitors that play a crucial role in regulating auxin signal transduction. transcription startup and downstream auxin-related gene expression are dependent on the stability of Aux/IAA proteins. In plants overexpressing IAA17, root length was reduced, but the roots of K41-mutated IAA17 transgenic plants were not significantly different from wild-type roots. According to biological results, K41-mutated IAA17 or IAA17 in the AtMMS21 knock-out mutant was more likely to be degraded than non-mutated IAA17 in wild-type plants.

Source link: https://europepmc.org/article/MED/36464768


Liver-spleen contrast standardization of gadolinium-ethoxybenzyl-diethylenetriamine penta-acetic acid-enhanced magnetic resonance imaging based on cross-calibration.

Background The hepatobiliary phase's resembles the liver function testing equipment used. Using the regression line of phantom comparisons, this study sought to develop and validate a method to convert liver-spleen contrast results obtained with another instrument to refer liver-spleen comparison results. Although logarithmic comparisons with phantom comparisons were 0. 0105 lower than those with liver-spleen comparison, no significant difference was found between the two lines between the two lines by analysis of covariance. In the case of different coils, there was a significant difference between liver-spleen and reference liver-spleen comparisons, but there was no significant difference between converted liver-spleen and reference liver-spleen comparisons. In the two cases of different magnetic resonance imaging scanners, there was a significant difference between liver-spleen and reference liver-spleen comparison, but there was no significant difference between converted liver-spleen and reference liver-spleen contrast, but there was no significant difference between converted liver-spleen and reference liver-spleen comparison.

Source link: https://europepmc.org/article/MED/36465824


Thermo-sensitive self-assembly of poly(ethylene imine)/(phenylthio) acetic acid ion pair in surfactant solutions.

Both poly/acetic acid ion pairs had an elevated critical solution temperature behavior in an aqueous solution, with the UCST rising as the PTA content was higher. TEM microscopy revealed that BS 100 markedly reduced the size of PEI/PTA ion pair self-assembly, according to CPC and SLS, having no effect on the number and stability of IPSAM, although CPC and SLS had no effect on the size and stability of IPSAM. It also demonstrated the hydrophobic interaction between BS 100 and PTA, as well as the electrostatic interaction between CPC and PTA and between SLS and PEI. The PTA of PEI/PTA IPSAM of PTA could be readily oxidized by H 2 O 2 even at low levels, according to an X-ray photoelectron spectroscopy. Although H2 O 2 concentration was higher, IPSAM updated its content more widely as H2O2 levels were higher. The ionic surfactants had no effect on the oxidation-induced release degree, but the nonionic surfactant markedly reduced the release degree.

Source link: https://europepmc.org/article/MED/35815674


Selection of solvents based on Hansen solubility parameters for calix[4]arene acetic-acid derivatives as extractants of metal ions

The relationship between solubility of calix[4]arene acetic-acid derivatives in various organic solvents and Hansen solubility parameters of the solvents was investigated in this study. b4 D = 17. 24, u03b4 H = 4. 45, indicating that this extractant is less polar than a tert-acetic-acid derivative determined from its solubility in 50 different solvents. T Oct[4] CH2 COOH in diethylene glycol dibutyl ether and 2-nonanone were 92. 6 mM and 91. 1 mM, respectively, as solubilities, as a result of their solubilities. Pb's extractability was determined by different solvents in a study. In 2-NON, the order of metal selectivity of t Oct[4]CH 2 COOH was similar to that in chloroform.

Source link: https://europepmc.org/article/PPR/PPR578489


Cost Reduction in the Production of Spirulina Biomass and Biomolecules from Indole-3-Acetic Acid Supplementation in Different Growth Phases.

Hence, it is crucial to find more effective cultivation methods for biomass cultivation and economic viability. This work was intended to save biomass and biomolecules produced by using phytohormone indole-3-acetic acid in several phases of Spirulina sp. In this sense, this research sought to minimize the production costs of biomass and biomolecules using phytohormone indole-3-acetic acid. LEB 18 cultivation. Biomas, proteins, and carbohydrates were reduced by 27%, 34%, and 75%, respectively, after supplementation of indole-3-acetic acid on half of the microalga's growth deceleration phase. This report is the beginning of a phytohormone supplementation program in industrial microalgal cultures.

Source link: https://europepmc.org/article/MED/36441405


Indole acetic acid/auxin-responsive gene TrIAA27 of white clover improves growth and enhances drought and salt tolerance in Arabidopsis

However, in white clover, regulatory functions of Aux/IAA family genes have not been disclosed. In the current research, we successfully isolated and cloned TrIAA27 Aux/IAA family genes from white clover cDNA. Compared to wild, TrIAA27's overexpression in transgenic Arabidopsis increased plant size, leaf area, and biomass and roots growth. In addition, TrIAA27 improved drought and salt tolerance in transgenic lines by lowering wilting rate, relative electrical conductivity, and increasing relative water content RWC, chlorophyll contents, and photochemical efficiency compared to wild.

Source link: https://europepmc.org/article/PPR/PPR574556

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions