149-32-6 Archives - Alcohols-buliding-blocks

Santana, Naienne da S. et al. published their research in Journal of Thermal Analysis and Calorimetry | CAS: 149-32-6

(2R,3S)-rel-Butane-1,2,3,4-tetraol (cas: 149-32-6) belongs to alcohols. Because alcohols are easily synthesized and easily transformed into other compounds, they serve as important intermediates in organic synthesis. Secondary alcohols are easily oxidized without breaking carbon-carbon bonds only as far as the ketone stage. No further oxidation is seen except under very stringent conditions.Formula: C4H10O4

An investigation by thermal analysis of glycosidic natural sweeteners was written by Santana, Naienne da S.;Mothe, Cheila G.;de Souza, Marcio Nele;Mothe, Michelle G.. And the article was included in Journal of Thermal Analysis and Calorimetry.Formula: C4H10O4 This article mentions the following:

The demand for non-nutritive sweeteners of natural origin has increased in recent years, mainly driven by health concerns and the quest for a healthier lifestyle. This work aimed to investigate the content of steviol glycosides from Stevia rebaudiana Bertoni and cucurbitane glycosides from monk fruit in com. samples of sweeteners using thermal anal. techniques (TG/DTG, DTA, and DSC), FTIR, EDS. Four com. samples were analyzed based on steviol glycosides (E, E2, E3, E4) and one sample based on cucurbitane glycosides (M1). The thermogravimetry (TG) results showed that the thermal stability order of the samples till 200 掳C was equal to E4 > M1 鈮?E2 > E > E3. Despite being marketed based on different natural glycosides, thermal anal. techniques showed similar thermal profiles between E2 and M1 samples. The DSC curves of these samples showed clear erythritol melting events, and the FTIR spectra confirmed the presence of this polyol in E2 and M1 samples. On the other hand, the DSC curve and the FTIR spectrum confirmed the presence of xylitol in the composition of the E4 sample. In the experiment, the researchers used many compounds, for example, (2R,3S)-rel-Butane-1,2,3,4-tetraol (cas: 149-32-6Formula: C4H10O4).

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Sampaolesi, Sofia et al. published their research in Food Chemistry: X in 2022 | CAS: 149-32-6

(2R,3S)-rel-Butane-1,2,3,4-tetraol (cas: 149-32-6) belongs to alcohols. Alkyl halides are often synthesized from alcohols, in effect substituting a halogen atom for the hydroxyl group. Tertiary alcohols cannot be oxidized at all without breaking carbon-carbon bonds, whereas primary alcohols can be oxidized to aldehydes or further oxidized to carboxylic acids.Synthetic Route of C4H10O4

The synthesis of soluble and volatile bioactive compounds by selected brewer鈥瞫 yeasts: Antagonistic effect against enteropathogenic bacteria and food spoiler – toxigenic Aspergillus sp. was written by Sampaolesi, Sofia;Briand, Laura E.;De Antoni, Graciela;Leon Pelaez, Angela. And the article was included in Food Chemistry: X in 2022.Synthetic Route of C4H10O4 This article mentions the following:

Contamination by Aspergillus sp. and the accumulation of its mycotoxins in food and beverages have a high impact on human health and food safety. This investigation inquires the ability of brewer鈥瞫 yeasts discarded after fermentation (brewing fermentation residue, BFR) to synthesize bioactive compounds and to biocontrol Aspergillus sp. BFRs of Saccharomyces cerevisiae MBELGA62 and Pichia kudriavzevii MBELGA61 proved to have bacteriostatic properties and to be efficient in fungal growth reduction, decreasing the growth rate of Aspergillus flavus and Aspergillus parasiticus up to 37.8% and 42.5%, resp. Fungal mycelium degradation along with absentia of conidia was detected near the yeast inoculum. Moreover, the yeasts synthesize volatile bioactive compounds that extend Aspergillus sp. lag phase above 100% and decrease fungal growth rates from 20% towards 44%, along with the complete inhibition of conidia synthesis. These results indicate the potential of this residue to be used in biocontrol applications in the food industry. In the experiment, the researchers used many compounds, for example, (2R,3S)-rel-Butane-1,2,3,4-tetraol (cas: 149-32-6Synthetic Route of C4H10O4).

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Jiang, Jikang et al. published their research in LWT–Food Science and Technology in 2022 | CAS: 149-32-6

(2R,3S)-rel-Butane-1,2,3,4-tetraol (cas: 149-32-6) belongs to alcohols. Under appropriate conditions, inorganic acids also react with alcohols to form esters. To form these esters, a wide variety of specialized reagents and conditions can be used. Under carefully controlled conditions, simple alcohols can undergo intermolecular dehydration to give ethers. This reaction is effective only with methanol, ethanol, and other simple primary alcohols.SDS of cas: 149-32-6

The effect of inoculation Leuconostoc mesenteroides and Lactiplantibacillus plantarum on the quality of Pleurotus eryngii Jiaosu was written by Jiang, Jikang;Li, Wenxiang;Yu, Shuping. And the article was included in LWT–Food Science and Technology in 2022.SDS of cas: 149-32-6 This article mentions the following:

To investigate the effects of inoculating Leuconostoc mesenteroides or Lactiplantibacillus plantarum on the changes in metabolites in Pleurotus eryngii Jiaosu, a fermented plant extract rich in nutrients and bioactive compounds, the physicochem. and metabolite features of the treated Jiaosu were compared to those of spontaneously-fermented Jiaosu. The physicochem. features of Jiaosu fermented with Leuconostoc mesenteroides or Lactiplantibacillus plantarum were superior to spontaneously-fermented Jiaosu. An Partial Least Squares Discrimination Anal. (PLS-DA) score plot showed a clear difference in metabolites between spontaneous fermentation group (SFG) and inoculated Lactiplantibacillus plantarum group (LPG). Metabolites were remarkably different between LPG and SFG on the first day of fermentation The differential metabolites included sugars, acids and alcs. This study highlights the applicability of GC-MS based metabolomics as a tool to monitor Jiaosu fermentation In the experiment, the researchers used many compounds, for example, (2R,3S)-rel-Butane-1,2,3,4-tetraol (cas: 149-32-6SDS of cas: 149-32-6).

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Baratange, Clement et al. published their research in Environmental Pollution (Oxford, United Kingdom) in 2022 | CAS: 149-32-6

(2R,3S)-rel-Butane-1,2,3,4-tetraol (cas: 149-32-6) belongs to alcohols. The oxygen atom of the strongly polarized O鈥旽 bond of an alcohol pulls electron density away from the hydrogen atom. This polarized hydrogen, which bears a partial positive charge, can form a hydrogen bond with a pair of nonbonding electrons on another oxygen atom. Grignard and organolithium reagents are powerful tools for organic synthesis, and the most common products of their reactions are alcohols.Category: alcohols-buliding-blocks

Metabolic, cellular and defense responses to single and co-exposure to carbamazepine and methylmercury in Dreissena polymorpha was written by Baratange, Clement;Paris-Palacios, Severine;Bonnard, Isabelle;Delahaut, Laurence;Grandjean, Dominique;Wortham, Laurence;Sayen, Stephanie;Gallorini, Andrea;Michel, Jean;Renault, David;Breider, Florian;Loizeau, Jean-Luc;Cosio, Claudia. And the article was included in Environmental Pollution (Oxford, United Kingdom) in 2022.Category: alcohols-buliding-blocks This article mentions the following:

Carbamazepine (CBZ) and Hg are widespread and persistent micropollutants in aquatic environments. Both pollutants are known to trigger similar toxicity mechanisms, e.g. reactive oxygen species (ROS) production Here, their effects were assessed in the zebra mussel Dreissena polymorpha, frequently used as a freshwater model in ecotoxicol. and biomonitoring. Single and co-exposures to CBZ (3.9 渭g L-1) and MeHg (280 ng L-1) were performed for 1 and 7 days. Metabolomics analyses evidenced that the co-exposure was the most disturbing after 7 days, reducing the amount of 25 metabolites involved in protein synthesis, energy metabolism, antioxidant response and osmoregulation, and significantly altering cells and organelles structure supporting a reduction of functions of gills and digestive glands. CBZ alone after 7 days decreased the amount of 伪-aminobutyric acid and had a moderate effect on the structure of mitochondria in digestive glands. MeHg alone had no effect on mussels metabolome, but caused a significant alteration of cells and organelles structure in gills and digestive glands. Single exposures and the co-exposure increased antioxidant responses vs control in gills and digestive glands, without resulting in lipid peroxidation, suggesting an increased ROS production caused by both pollutants. Data globally supported that a higher number of hyperactive cells compensated cellular alterations in the digestive gland of mussels exposed to CBZ or MeHg alone, while CBZ + MeHg co-exposure overwhelmed this compensation after 7 days. Those effects were unpredictable based on cellular responses to CBZ and MeHg alone, highlighting the need to consider mol. toxicity pathways for a better anticipation of effects of pollutants in biota in complex environmental conditions. In the experiment, the researchers used many compounds, for example, (2R,3S)-rel-Butane-1,2,3,4-tetraol (cas: 149-32-6Category: alcohols-buliding-blocks).

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Zhang, Ting et al. published their research in Journal of Membrane Science in 2022 | CAS: 149-32-6

Effect of synthesis conditions on the non-uniformity of nanofiltration membrane pore size distribution was written by Zhang, Ting;Fu, Ruo-Yu;Wang, Kun-Peng;Gao, Ya-Wei;Li, Hong-Rui;Wang, Xiao-Mao;Xie, Yuefeng F.;Hou, Li’an. And the article was included in Journal of Membrane Science in 2022.SDS of cas: 149-32-6 This article mentions the following:

The uniformity of membrane pore sizes, which is essentially determined by the membrane synthesis conditions, significantly affects the rejection performance of nanofiltration (NF) membranes. In this study, we applied two modeling methods, i.e., the DSPM (Donnan Steric Pore Model) and the log-normal distribution methods, for the determination of the average membrane pore size and pore size uniformity of lab-made NF membranes. The synthesis conditions included concentration of monomers (e.g., piperazine and trimesoyl chloride), (thermal) curing temperature and time, and activation solvent type and duration. Results showed that both high piperazine (PIP) concentration (鈮?.5 wt%) and curing temperature (鈮?0掳C) could enhance the membrane pore size uniformity. Although the average membrane pore size calculated by the DSPM method was higher than that by the log-normal distribution method, they significantly correlated. It appears that the log-normal distribution method could more directly characterize membrane pore size uniformity. Obviously, the pore uniformity of NF membranes affected the rejection of small mols., such as trace organic compounds These insights provided a theor. foundation for the characterization of membrane pore size distribution with more accuracy and the fabrication of membranes with higher pore size uniformity. In the experiment, the researchers used many compounds, for example, (2R,3S)-rel-Butane-1,2,3,4-tetraol (cas: 149-32-6SDS of cas: 149-32-6).

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Lu, Zhifang et al. published their research in International Journal of Molecular Sciences in 2022 | CAS: 149-32-6

(2R,3S)-rel-Butane-1,2,3,4-tetraol (cas: 149-32-6) belongs to alcohols. Alcohols are among the most common organic compounds. They are used as sweeteners and in making perfumes, are valuable intermediates in the synthesis of other compounds, and are among the most abundantly produced organic chemicals in industry. Converting an alcohol to an alkene requires removal of the hydroxyl group and a hydrogen atom on the neighbouring carbon atom. Dehydrations are most commonly carried out by warming the alcohol in the presence of a strong dehydrating acid, such as concentrated sulfuric acid.Quality Control of (2R,3S)-rel-Butane-1,2,3,4-tetraol

YdfD, a Lysis Protein of the Qin Prophage, Is a Specific Inhibitor of the IspG-Catalyzed Step in the MEP Pathway of Escherichia coli was written by Lu, Zhifang;Wang, Biying;Qiu, Zhiyu;Zhang, Ruiling;Zheng, Jimin;Jia, Zongchao. And the article was included in International Journal of Molecular Sciences in 2022.Quality Control of (2R,3S)-rel-Butane-1,2,3,4-tetraol This article mentions the following:

Bacterial cryptic prophage (defective prophage) genes are known to drastically influence host physiol., such as causing cell growth arrest or lysis, upon expression. Many phages encode lytic proteins to destroy the cell envelope. As natural antibiotics, only a few lysis target proteins were identified. ydfD is a lytic gene from the Qin cryptic prophage that encodes a 63-amino-acid protein, the ectopic expression of which in Escherichia coli can cause nearly complete cell lysis rapidly. The bacterial 2-C-methyl-D-erythritol 4-phosphate (MEP) pathway is responsible for synthesizing the isoprenoids uniquely required for sustaining bacterial growth. In this study, we provide evidence that YdfD can interact with IspG, a key enzyme involved in the MEP pathway, both in vivo and in vitro. We show that intact YdfD is required for the interaction with IspG to perform its lysis function and that the mRNA levels of ydfD increase significantly under certain stress conditions. Crucially, the cell lysis induced by YdfD can be abolished by the overexpression of ispG or the complementation of the IspG enzyme catalysis product methylerythritol 2,4-cyclodiphosphate. We propose that YdfD from the Qin cryptic prophage inhibits IspG to block the MEP pathway, leading to a compromised cell membrane and cell wall biosynthesis and eventual cell lysis. In the experiment, the researchers used many compounds, for example, (2R,3S)-rel-Butane-1,2,3,4-tetraol (cas: 149-32-6Quality Control of (2R,3S)-rel-Butane-1,2,3,4-tetraol).

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Sampaolesi, Sofia et al. published their research in Food Chemistry: X in 2022 | CAS: 149-32-6

The synthesis of soluble and volatile bioactive compounds by selected brewer′s yeasts: Antagonistic effect against enteropathogenic bacteria and food spoiler – toxigenic Aspergillus sp. was written by Sampaolesi, Sofia;Briand, Laura E.;De Antoni, Graciela;Leon Pelaez, Angela. And the article was included in Food Chemistry: X in 2022.Synthetic Route of C4H10O4 This article mentions the following:

Contamination by Aspergillus sp. and the accumulation of its mycotoxins in food and beverages have a high impact on human health and food safety. This investigation inquires the ability of brewer′s yeasts discarded after fermentation (brewing fermentation residue, BFR) to synthesize bioactive compounds and to biocontrol Aspergillus sp. BFRs of Saccharomyces cerevisiae MBELGA62 and Pichia kudriavzevii MBELGA61 proved to have bacteriostatic properties and to be efficient in fungal growth reduction, decreasing the growth rate of Aspergillus flavus and Aspergillus parasiticus up to 37.8% and 42.5%, resp. Fungal mycelium degradation along with absentia of conidia was detected near the yeast inoculum. Moreover, the yeasts synthesize volatile bioactive compounds that extend Aspergillus sp. lag phase above 100% and decrease fungal growth rates from 20% towards 44%, along with the complete inhibition of conidia synthesis. These results indicate the potential of this residue to be used in biocontrol applications in the food industry. In the experiment, the researchers used many compounds, for example, (2R,3S)-rel-Butane-1,2,3,4-tetraol (cas: 149-32-6Synthetic Route of C4H10O4).

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Jiang, Jikang et al. published their research in LWT–Food Science and Technology in 2022 | CAS: 149-32-6

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Baratange, Clement et al. published their research in Environmental Pollution (Oxford, United Kingdom) in 2022 | CAS: 149-32-6

(2R,3S)-rel-Butane-1,2,3,4-tetraol (cas: 149-32-6) belongs to alcohols. The oxygen atom of the strongly polarized O―H bond of an alcohol pulls electron density away from the hydrogen atom. This polarized hydrogen, which bears a partial positive charge, can form a hydrogen bond with a pair of nonbonding electrons on another oxygen atom. Grignard and organolithium reagents are powerful tools for organic synthesis, and the most common products of their reactions are alcohols.Category: alcohols-buliding-blocks

Carbamazepine (CBZ) and Hg are widespread and persistent micropollutants in aquatic environments. Both pollutants are known to trigger similar toxicity mechanisms, e.g. reactive oxygen species (ROS) production Here, their effects were assessed in the zebra mussel Dreissena polymorpha, frequently used as a freshwater model in ecotoxicol. and biomonitoring. Single and co-exposures to CBZ (3.9 μg L-1) and MeHg (280 ng L-1) were performed for 1 and 7 days. Metabolomics analyses evidenced that the co-exposure was the most disturbing after 7 days, reducing the amount of 25 metabolites involved in protein synthesis, energy metabolism, antioxidant response and osmoregulation, and significantly altering cells and organelles structure supporting a reduction of functions of gills and digestive glands. CBZ alone after 7 days decreased the amount of α-aminobutyric acid and had a moderate effect on the structure of mitochondria in digestive glands. MeHg alone had no effect on mussels metabolome, but caused a significant alteration of cells and organelles structure in gills and digestive glands. Single exposures and the co-exposure increased antioxidant responses vs control in gills and digestive glands, without resulting in lipid peroxidation, suggesting an increased ROS production caused by both pollutants. Data globally supported that a higher number of hyperactive cells compensated cellular alterations in the digestive gland of mussels exposed to CBZ or MeHg alone, while CBZ + MeHg co-exposure overwhelmed this compensation after 7 days. Those effects were unpredictable based on cellular responses to CBZ and MeHg alone, highlighting the need to consider mol. toxicity pathways for a better anticipation of effects of pollutants in biota in complex environmental conditions. In the experiment, the researchers used many compounds, for example, (2R,3S)-rel-Butane-1,2,3,4-tetraol (cas: 149-32-6Category: alcohols-buliding-blocks).

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Zhang, Ting et al. published their research in Journal of Membrane Science in 2022 | CAS: 149-32-6

The uniformity of membrane pore sizes, which is essentially determined by the membrane synthesis conditions, significantly affects the rejection performance of nanofiltration (NF) membranes. In this study, we applied two modeling methods, i.e., the DSPM (Donnan Steric Pore Model) and the log-normal distribution methods, for the determination of the average membrane pore size and pore size uniformity of lab-made NF membranes. The synthesis conditions included concentration of monomers (e.g., piperazine and trimesoyl chloride), (thermal) curing temperature and time, and activation solvent type and duration. Results showed that both high piperazine (PIP) concentration (≥0.5 wt%) and curing temperature (≥40°C) could enhance the membrane pore size uniformity. Although the average membrane pore size calculated by the DSPM method was higher than that by the log-normal distribution method, they significantly correlated. It appears that the log-normal distribution method could more directly characterize membrane pore size uniformity. Obviously, the pore uniformity of NF membranes affected the rejection of small mols., such as trace organic compounds These insights provided a theor. foundation for the characterization of membrane pore size distribution with more accuracy and the fabrication of membranes with higher pore size uniformity. In the experiment, the researchers used many compounds, for example, (2R,3S)-rel-Butane-1,2,3,4-tetraol (cas: 149-32-6SDS of cas: 149-32-6).

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts