Category: alcohols-buliding-blocks

Khorramzadeh, Dorreh published the artcileProduction of drinking powder containing soy milk powder and low calorie sweeteners, Name: (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, the main research area is drinking soy milk powder sweetener.

In recent decades, consuming low calorie foods containing sugar substitutes has enhanced to reduce energy intake, decline of blood sugar and body weight control. By increasing tendency to reduce food energy intake through consuming lower sucrose foods and increasing demand for healthy, functional and nutritious soft drinks in the shape of ready to drink beverages, squash and drinking powder; in this study, by removing sugar from some usual drinking powders and replacing it with three other sweeteners, Stevia rebaudioside-A, erythritol and isomalt, five formulations of a drinking powder containing different combinations of the three sweeteners along with soymilk powder and apple-juice powder were evaluated. In the samples, 80 percent of the required sweetness was coming from Stevia, and remaining 20 percent of the sweetness from 5 ratios of Erythritol: Isomalt (100:0, 75:25, 50:50, 25:75, 0:100). In all five samples, there was a constant measure of soymilk powder and apple-juice powder. The samples examined in terms of physicochem. and organoleptic characteristics.Results showed that all samples were physicochemicaly in standard range and they had acceptable organoleptic quality, but the one with a 75:25 erythritolisomalt ratio was more desirable.

Advances in Environmental Biology published new progress about Apple juice. 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, Name: (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.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Shishov, Andrey published the artcileIn-syringe dispersive liquid-liquid microextraction using deep eutectic solvent as disperser: Determination of chromium (VI) in beverages, Application of n-Octanol, the main research area is syringe dispersive liquid microextraction deep eutectic solvent chromium beverage; Beverages; Chromium (VI); Deep eutectic solvent; Disperser solvent; Dispersive liquid-liquid microextraction; In-syringe flow system.

A novel approach for dispersive liquid-liquid microextraction based on the use of deep eutectic solvent as a disperser was presented for the first time. The procedure was automated based on an in-syringe flow system coupled with UV-Vis detection and demonstrated by the determination of chromium (VI) in beverages. This anal. task was used as a proof-of-concept example. The automated extraction procedure involved the aspiration of aqueous sample into a syringe pump with homogeneous mixture of extraction solvent (1-octanol) and deep eutectic solvent (tetrabutylammonium bromide – formic acid) containing color-forming reagent (1,5-diphenylcarbazide). This led to decomposition of deep eutectic solvent in aqueous phase resulting in dispersion of extraction solvent, oxidation of 1,5-diphenylcarbazide to 1,5- diphenylcarbazone in the presence of chromium (VI), and formation of colored chromium (III) complex with 1,5-diphenylcarbazone and its fast extraction In this case composition of deep eutectic solvent played a key role for analyte extraction Tetrabutylammonium bromide promoted mass transfer between aqueous phase and the extraction solvent droplets as a salting out agent, bromide ion acted as an ion-pare agent for analyte complex extraction, formic acid provided required pH value for analyte complex formation. Under the optimal conditions the limit of detection, calculated from a blank test based on 3s, was 0.2 μg L-1. The automated dispersive liquid-liquid microextraction using deep eutectic solvent as disperser can be considered as an available, efficient, rapid and environmentally friendly sample pretreatment approach.

Talanta published new progress about Apple juice. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Application of n-Octanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Medina, Sonia published the artcileDifferential volatile organic compounds signatures of apple juices from Madeira Island according to variety and geographical origin, Formula: C4H10OS, the main research area is apple juice volatile organic compound Portugal.

One of the main food authenticity issues is related to products�false labeling concerning their variety or geog. origin. For this reason, the aim of this study was to establish distinctive characteristics for the discrimination of apple juices according to regional varieties (Rijo, Verde, Ribeiro and Azedo) and geog. origin (Prazeres and Santo da Serra (Madeira Island)) on the basis of their volatile pattern by headspace solid-phase microextraction combined with gas chromatog. mass spectrometry (HS-SPME/GC-MS) combined with chemometric tools. The results obtained revealed a perfect discrimination between the different apple varieties, with Rijo apple juices as samples with the major relative concentration of ethanol, Et butanoate, Et 2-methylbutanoate and Et hexanoate. Moreover, this study allowed a geog. origin-based classification of Azedo apple juices, highlighting Et acetate, 2-methyl-1-propanol, Et hexanoate, and toluene (described for the first time in apple juices) as discriminatory features. This study demonstrated that volatile organic compounds (VOCs) could serve as authenticity indicators to verify variety and geog. origin of apple juices, providing local producers multiple benefits and legal protection against misuse of the products.

Microchemical Journal published new progress about Apple juice. 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

Hao, Pengchao published the artcileAuxin-transporting ABC transporters are defined by a conserved D/E-P motif regulated by a prolylisomerase, Computed Properties of 97-67-6, the main research area is Arabidopsis ABCB1 mutation auxin proline malate prolylisomerase protoplast; ABC transporter; ABCB; FKBP; PPIase; Twisted Dwarf1; auxin; auxin transport; membrane transport; plant biochemistry; post-transcriptional regulation.

The plant hormone auxin must be transported throughout plants in a cell-to-cell manner to affect its various physiol. functions. ABCB transporters are critical for this polar auxin distribution, but the regulatory mechanisms controlling their function is not fully understood. The auxin transport activity of ABCB1 was suggested to be regulated by a phys. interaction with FKBP42/Twisted Dwarf1 (TWD1), a peptidylprolyl cistrans isomerase (PPIase), but all attempts to demonstrate such a PPIase activity byTWD1 have failed so far. By using a structurebased approach, we identified several surface-exposed proline residues in the nucleotide binding domain and linker of Arabidopsis ABCB1, mutations of which do not alter ABCB1 protein stability or location but do affect its transport activity. P1008 is part of a conserved signature D/E-P motif that seems to be specific for auxin-transporting ABCBs, which we now refer to as ATAs. Mutation of the acidic residue also abolishes auxin transport activity by ABCB1. All higher plant ABCBs for which auxin transport has been conclusively proven carry this conserved motif, underlining its predictive potential. Introduction of this D/E-P motif into malate importer, ABCB14, increases both its malate and its background auxin transport activity, suggesting that this motif has an impact on transport capacity. The D/EP1008 motif is also important for ABCB1-TWD1 interactions and activation of ABCB1-mediated auxin transport by TWD1. In summary, our data imply a new function for TWD1 acting as a putative activator of ABCB-mediated auxin transport by cistrans isomerization of peptidyl-prolyl bonds.

Journal of Biological Chemistry published new progress about Arabidopsis. 97-67-6 belongs to class alcohols-buliding-blocks, name is (S)-2-hydroxysuccinic acid, and the molecular formula is C4H6O5, Computed Properties of 97-67-6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Karl, Corinna M. published the artcileStructure-dependent effects of sweet and sweet taste affecting compounds on their sensorial properties, Recommanded Product: (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, the main research area is sweet taste affecting compound sensorial properties; Lingering; Molecular structure of tastants; Onset; Physicochemical descriptors; Side-tastes; Sweet taste; Temporal sensory profile.

A reduction in sugar consumption is desirable from a health point of view. However, the sensory profiles of alternative sweet tasting compounds differ from sucrose regarding their temporal profile and undesired side tastes, reducing consumers acceptance. The present study describes a sensory characterization of a variety of sweet and sweet taste affecting compounds followed by a comparison of similarity to sucrose and a multivariate regression anal. to investigate structural determinants and possible interactions for the temporal profile of the sweetness and side-tastes. The results of the present study suggest a pivotal role for the number of ketones, aromatic rings, double bonds and the M LogP in the temporal profile of sweet and sweet taste affecting compounds Furthermore, interactions between aggregated physicochem. descriptors demonstrate the complexity of the sensory response, which should be considered in future models to predict a comprehensive sensory profile of sweet and sweet taste affecting compounds

Food Chemistry: X published new progress about Astringents. 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, Recommanded Product: (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.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Gondas, Eduard published the artcileExpression of pyruvate carboxylase in cultured human astrocytoma, glioblastoma and neuroblastoma cells, Computed Properties of 97-67-6, the main research area is pyruvatecarboxylase expression cultured astrocytoma glioblastoma neuroblastoma.

Pyruvate carboxylase (PC) is an enzyme catalyzing the conversion of pyruvate to oxaloacetate, which possesses anaplerotic role in cellular metabolism The expression of PC was confirmed in cells of several cancer types, in which it ensures several cellular functions, such as growth and division. To investigate the expression of PC in human astrocytoma, glioblastoma and neuroblastoma cells we applied the immunodetection methods. The results of the Western blot anal. and immunocytochem. detection revealed the presence of PC in human astrocytoma, glioblastoma and neuroblastoma cells. Furthermore, application of PC inhibitor, 3-chloro-1,2-dihydroxypropane (CDP), neg. impacts the viability of astrocytoma cells. The cytotoxic effect of CDP could be partially reversed by application of citrate, 2-oxoglutarate and malate in incubation media. Our results revealed that astrocytoma, glioblastoma and neuroblastoma cells are equipped with PC, which might significantly contribute by its anaplerotic activity to sustain the metabolism of cancer cells.

General Physiology and Biophysics published new progress about Astrocytoma. 97-67-6 belongs to class alcohols-buliding-blocks, name is (S)-2-hydroxysuccinic acid, and the molecular formula is C4H6O5, Computed Properties of 97-67-6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Cruz-Esteban, Samuel published the artcileThe attractant, but not the trap design, affects the capture of Drosophila suzukii in berry crops, Recommanded Product: 3-(Methylthio)propan-1-ol, the main research area is attractant drosophila suzukii strawberry raspberry blueberry; Color; monitoring; olfaction; spotted-wing drosophila; volatile compounds.

Drosophila suzukii (Matsumura) (Diptera: Drosophilidae) is recognized as an invasive pest in Europe and North America. In Mexico, it is one of the main insect pests of soft-skinned fruits such as blueberries, strawberries, raspberries, blackberries, plums, and guava. Previous studies have shown that D. suzukii uses visual and chem. cues during host plant searching. This knowledge has been used to develop traps and attractants for monitoring D. suzukii. In this study, five trap designs were evaluated to monitor D. suzukii under field conditions. Traps were baited with SuzukiiTrap, Z-Kinol, an attractant based on acetoin and methionol, or apple cider vinegar (ACV) enriched with 10% ethanol (EtOH) with the synergistic action of carbon dioxide (CO2). Our results suggested that the attractant was the determining factor in capturing D. suzukii, while trap design seemed to play a modest role. We found that traps baited with Z-Kinol captured the highest number of D. suzukii compared to that caught by traps baited with SuzukiiTrap, or ACV + EtOH + CO2. The highest catch numbers occurred in blackberry, followed by strawberry, raspberry, and blueberry. Traps captured more females than males. The results obtained may be useful for monitoring D. suzukii populations in Mexico and elsewhere, particularly in states where soft fruit crops are a component of agricultural activities.

Bulletin of Entomological Research published new progress about Attractants. 505-10-2 belongs to class alcohols-buliding-blocks, name is 3-(Methylthio)propan-1-ol, and the molecular formula is C4H10OS, Recommanded Product: 3-(Methylthio)propan-1-ol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Fan, Xiaowei published the artcileEffects of manufacturing on the volatile composition of raw Pu-erh tea with a focus on de-enzyming and autoclaving-compressing treatments, Application of rel-(1R,2R,4R)-1,7,7-Trimethylbicyclo[2.2.1]heptan-2-ol, the main research area is raw Puerh tea volatile composition deenzyming autoclaving compressing treatment.

Volatile compounds largely contribute to the aroma of raw pu-erh tea (RPT). However, the changes of volatile composition during manufacturing are unclear. This work characterized 58 volatile compounds in the RPT samples collected from withering, de-enzyming, sun-drying, and autoclaving-compressing stages. Results show that de-enzyming and autoclaving-compressing have large effects on the volatile composition, with the total volatile contents sharply decreased by 76.68% and 35.77%, resp. After de-enzyming, the relative content of aldehydes increased by 4.68-fold, whereas that of alkenes decreased by 2.65-fold; thus, the attractive fatty aroma must be enhanced while weakening the unpleasant grassy aroma. The volatile composition would be greatly changed by autoclaving-compressing, which is a special step for RPT production but rarely studied before. These findings revealed the changes of the volatile composition of RPT during manufacturing, especially de-enzyming and autoclaving-compressing, which are important for the formation of the aroma characteristics of RPT.

LWT–Food Science and Technology published new progress about Autoclaving. 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, Application of rel-(1R,2R,4R)-1,7,7-Trimethylbicyclo[2.2.1]heptan-2-ol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Patnode, Michael L. published the artcileInterspecies competition impacts targeted manipulation of human gut bacteria by fiber-derived glycans, Name: (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, the main research area is human gut bacteria Bacteroides dietary fiber glycan; biosensors; community ecology; interspecies competition; microbiota-directed foods; polysaccharide utilization.

Development of microbiota-directed foods (MDFs) that selectively increase the abundance of beneficial human gut microbes, and their expressed functions, requires knowledge of both the bioactive components of MDFs and the mechanisms underlying microbe-microbe interactions. Here, gnotobiotic mice were colonized with a defined consortium of human-gut-derived bacterial strains and fed different combinations of 34 food-grade fibers added to a representative low-fiber diet consumed in the United States. Bioactive carbohydrates in fiber preparations targeting particular Bacteroides species were identified using community-wide quant. proteomic analyses of bacterial gene expression coupled with forward genetic screens. Deliberate manipulation of community membership combined with administration of retrievable artificial food particles, consisting of paramagnetic microscopic beads coated with dietary polysaccharides, disclosed the contributions of targeted species to fiber degradation Our approach, including the use of bead-based biosensors, defines nutrient-harvesting strategies that underlie, as well as alleviate, competition between Bacteroides and control the selectivity of MDF components.

Cell (Cambridge, MA, United States) published new progress about Bacteroides. 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, Name: (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Guo, Ciliang published the artcileIsolation and structure characterization of a polysaccharide from Crataegus pinnatifida and its bioactivity on gut microbiota, Name: (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, the main research area is Crataegus Bacteroides Bifidobacterium polysaccharide short chain fatty acid; Bacteria competition; Crataegus pinnatifida; Gut microbiota; Polysaccharide; Short chain fatty acid.

A glucose rich heteroglycan named HAW1-2 was isolated and purified from fruit of Crataegus pinnatifida by hot-water extraction, ethanol precipitation, DEAE-cellulose anion exchange and gel permeation chromatog. HAW1-2 was proved as a homogenous polysaccharide with a mol. weight (Mw) of 8.94 kDa. Monosaccharide composition results indicated that HAW1-2 was composed of arabinose, galactose and glucose. Methylation anal. and NMR spectrum showed that HAW1-2 contained â†?)-β-D-Glcp-(1â†? â†?)-β-D-Galp-(1â†? α-L-Araf-(1â†? â†?)-α-L-Araf-(1â†? β-D-Glcp-(1â†?and â†?,6)-β-D-Glcp-(1â†? Bioactivity test showed that HAW1-2 could significantly promote the growth of Bacteroides thetaiotamicron (BT), Bacteroides ovatus (BO) and Bifidobacterium longum (BL), which showed competition with the Bacteroides spp. under co-culture. Interestingly, Bacteroides spp. generated more acetic acids and propionic acids while BL only generated acetic acids. These results imply that polysaccharide HAW1-2 may be useful for human by modulating intestinal bacteria and producing short chain fatty acids.

International Journal of Biological Macromolecules published new progress about Bacteroides. 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, Name: (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts