Category: alcohols-buliding-blocks

Bilz, Florian published the artcileVisualization of a Distributed Synaptic Memory Code in the Drosophila Brain, Recommanded Product: n-Octanol, the main research area is GCaMP calcium learning memory synaptic plasticity Drosophila animal behavior; Drosophila melanogaster; Kenyon cell; insect brain; learning and memory; mushroom body; neuronal assemblies; odor representation; olfactory coding; optical calcium imaging; synaptic plasticity.

During associative conditioning, animals learn which sensory cues are predictive for pos. or neg. conditions. Because sensory cues are encoded by distributed neurons, one has to monitor plasticity across many synapses to capture how learned information is encoded. We analyzed synaptic boutons of Kenyon cells of the Drosophila mushroom body γ lobe, a brain structure that mediates olfactory learning. A fluorescent Ca2+ sensor was expressed in single Kenyon cells so that axonal boutons could be assigned to distinct cells and Ca2+ could be measured across many animals. Learning induced directed synaptic plasticity in specific compartments along the axons. Moreover, we show that odor-evoked Ca2+ dynamics across boutons decorrelate as a result of associative learning. Information theory indicates that learning renders the stimulus representation more distinct compared with naive stimuli. These data reveal that synaptic boutons rather than cells act as individually modifiable units, and coherence among them is a memory-encoding parameter.

Neuron published new progress about Behavior Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Recommanded Product: n-Octanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Sun, Shuang-Feng published the artcileMolecular Screening of Behaviorally Active Compounds with CmedOBP14 from the Rice Leaf Folder Cnaphalocrocis medinalis, Application of 3-Pentanol, the main research area is behaviorally active compound OBP14 mol screening Cnaphalocrocis; Behaviorally active compounds; EAG response; Odorant binding proteins; Plant volatiles; RNA interference; Reverse chemical ecology.

Odorant binding proteins (OBPs) play a key role in chemoreception in insects. In an earlier study, we identified CmedOBP14 from the rice leaf folder, Cnaphalocrocis medinalis, with potential physiol. functions in olfaction. Here, we performed a competitive binding assay under different pH conditions as well as knockdown via RNA interference to determine the specific role of CmedOBP14 in C. medinalis. CmedOBP14 displayed broad binding affinities to many host-related compounds, with higher affinities at pH 7.4 compared with pH 5.0. After treatment with CmedOBP14-dsRNA, the transcript level of OBP14 was significantly decreased at 72 h compared with controls, and the electroantennogram response evoked by nerolidol, L-limonene and beta-ionone was reduced. Furthermore, behavioral assays revealed consistent patterns among these compounds, especially for nerolidol, with adults could no longer able to differentiate 0.1% nerolidol from controls. RNAi experiments suggest that at least in part, CmedOBP14 mediates the ability to smell nerolidol and beta-ionone.

Journal of Chemical Ecology published new progress about Behavior Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 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

Pungente, Michael D. published the artcileAntibody-catalyzed formation of a 14-membered ring lactone, Formula: C13H19NO3, the main research area is macrocyclic phosphonate lactone preparation monoclonal antibody catalyst.

Monoclonal antibody (MAb) F123, raised against a macrocyclic phosphonate transition-state analog, catalyzed an intramol. transesterification of the corresponding hydroxy ester to give a 14-membered ring lactone. The MAB reaction displayed enzyme-like Michaelis-Menten kinetics with a Km of 255 μM and a kcat of 0.01 min-1 based on p-nitrophenol release and calculated on an active-site basis. Substrate specificity and competitive inhibition by a transition state analog (Ki = 3 μM) demonstrated that the catalytic activity was associated with binding in the antibody-combining site. The lactone product was isolated from a large-scale catalytic experiment through ether extraction and identified by gas chromatog. – mass spectroscopy.

Canadian Journal of Chemistry published new progress about Catalytic monoclonal antibodies Role: CAT (Catalyst Use), USES (Uses) (F123). 87905-98-4 belongs to class alcohols-buliding-blocks, name is Benzyl (5-hydroxypentyl)carbamate, and the molecular formula is C13H19NO3, Formula: C13H19NO3.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Yan, Xinlei published the artcileEffect of collagen casing on the quality characteristics of fermented sausage, Category: alcohols-buliding-blocks, the main research area is fermented sausage collagen casing.

Fermented sausage is popular all over the world for its rich nutrition and unique flavor. Sausage casing is one of the key factors affecting the quality of fermented sausage. However, there is little information involved in this field. In this study, collagen casings were used as a wrapping material, and natural casings (pig casings) were used as a control. The effects of the two types of casings on biogenic amine content and other quality characteristics of fermented sausage were analyzed with increasing the storage time. The results showed that with storage time increasing, the hardness and gumminess of fermented sausage in collagen casing (CC) group were higher than those in pig casing (PC) group (P<0.05), while the elasticity in CC group was lower than that in PC group (P<0.05). In the processing and storage period, there was no significant difference in the type and content of flavor substances between the two groups. More importantly, the contents of tryptamine, putrescine, cadaverine, histamine, tyramine and phenyethylamine in fermented sausage of CC group were lower than those in PC group (P<0.05). In conclusion, this study revealed that CC could improve the quality characteristics of fermented sausage and reduce the content of biogenic amines in fermented sausage, which provides a theor. basis for the choice of casings in industrial production in the future. PLoS One published new progress about Collagens Role: FFD (Food or Feed Use), BIOL (Biological Study), USES (Uses). 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, Category: alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Zhang, Xinfu published the artcileRatiometric fluorescent probes for capturing endogenous hypochlorous acid in the lungs of mice, Computed Properties of 2212-32-0, the main research area is ratiometric fluorescent hypochlorous acid.

Hypochlorous acid (HClO) is a promising diagnostic marker for inflammation and relevant diseases. Although many probes were previously developed for HClO imaging, the development of organ targeting probes is still lacking. Herein, we designed and synthesized a series of cyanine derivatives as ratiometric fluorescent probes to detect endogenous HClO in the lungs with inflammation. By installing diverse lipid chains and amino groups on cyanine, we identified that ClO1, with one n-octadecane chain and two 2-[[2-(dimethylamino)ethyl]methylamino]-Et groups, is a superior probe to target the lungs over other major organs in mice. ClO1 was able to sense both exogenous and endogenous HClO in A549 (human lung epithelial) cells through fluorescence ratiometric imaging. In a lipopolysaccharide (LPS)-induced lung inflammation mouse model, ClO1 effectively captured endogenous HClO in the lungs after i.v. administration. Overall, these cyanine-derived probes merit further development as organ targeting HClO sensors.

Chemical Science published new progress about Cyanines Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 2212-32-0 belongs to class alcohols-buliding-blocks, name is N2-(2-Hydroxyethyl)-N1,N1,N2-trimethyl-1,2-ethylenediamine, and the molecular formula is C7H18N2O, Computed Properties of 2212-32-0.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Alamo-Sanza, Maria del published the artcileImpact of long bottle aging (10 years) on volatile composition of red wines micro-oxygenated with oak alternatives, Application of 3-(Methylthio)propan-1-ol, the main research area is oak red wine long bottle aging oxygen.

The adding of wood pieces together with small amounts of oxygen to simulate the processes for aging red wine in barrels is the most common alternative to oak barrels. The evolution of these wines aged with alternatives in bottle has not been examined in depth as they are considered to be for rapid consumption. This paper presents for the first time the evolution in bottle for 10 years of the same wine aged in oak barrels and subjected to diverse alternative aging processes using different woods. Wines subjected to this alternative have evolved after 10 years in the bottle in a similar way to those aged in barrels. Wines aged in barrels retain significantly higher levels of blue tonalities than those treated with chips + FMOX and the loss of compounds responsible for red is almost double in wines treated with alternatives than in those aged in barrels. Wines aged in barrels showed higher concentrations of cis- and trans-whiskylactones than those treated with alternative products. In both the cis/trans whisky lactone ratio has been around 2 in wines aged in French oak, and over 5 in wines aged in American oak. Adequate oxygen management during treatment with oak alternatives provides long-life wines.

LWT–Food Science and Technology published new progress about Lactones Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 505-10-2 belongs to class alcohols-buliding-blocks, name is 3-(Methylthio)propan-1-ol, and the molecular formula is C4H10OS, Application of 3-(Methylthio)propan-1-ol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Liu, Zhibin published the artcileThe dynamics of volatile compounds and their correlation with the microbial succession during the traditional solid-state fermentation of Gutian Hong Qu glutinous rice wine, Formula: C10H18O, the main research area is rice wine volatile compoundmicrobial succession solid state fermentation; Bacterial community; Fungal community; Gutian Hong Qu glutinous rice wine; High throughput sequencing; Traditional solid-state fermentation; Volatile components.

Gutian Hong Qu glutinous rice wine (GHQW) is a representative alc. beverage in China. During its traditional brewing process, multiple strains are involved. However, the roles of these microorganisms, particularly their contributions to aroma formation, are poorly understood. Therefore, in this study, the dynamics of volatile components and microbial succession during the traditional fermentation process of GHQW were monitored, by using HS-SPME-GC/MS and high throughput 16 S rRNA and ITS sequencing techniques. Following a 32-day semi-open solid-state fermentation, massive changes in volatile profile and microbial communities were observed Based on these, the potential correlations between volatile components and microorganisms during the fermentation were explored by using Pearson correlation anal. It was revealed that 3 bacterial taxa, including Lactococcus lactis, Burkholderia gladioli and Cronobacter helveticus, and 5 fungal taxa, including Wickerhamomyces anomalus, Saccharomyces cerevisiae, Aspergillus vitricola, Aspergillus penicillioides and Monascus purpureus, showed strong connections with various volatile components. Thus these bacteria and fungi might play crucial roles in volatile components biosynthesis, and thus were preliminary considered as core functional microorganisms for GHQW brewing. The detailed information on the dynamic changes of volatile components and microbial communities throughout GHQW brewing can further expand our understanding of the formation mechanisms of GHQW aroma.

Food Microbiology published new progress about 16S rRNA Role: FFD (Food or Feed Use), BIOL (Biological Study), USES (Uses). 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, Formula: C10H18O.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Liu, Zhibin published the artcileThe dynamics of volatile compounds and their correlation with the microbial succession during the traditional solid-state fermentation of Gutian Hong Qu glutinous rice wine, Name: 3-(Methylthio)propan-1-ol, the main research area is rice wine volatile compoundmicrobial succession solid state fermentation; Bacterial community; Fungal community; Gutian Hong Qu glutinous rice wine; High throughput sequencing; Traditional solid-state fermentation; Volatile components.

Gutian Hong Qu glutinous rice wine (GHQW) is a representative alc. beverage in China. During its traditional brewing process, multiple strains are involved. However, the roles of these microorganisms, particularly their contributions to aroma formation, are poorly understood. Therefore, in this study, the dynamics of volatile components and microbial succession during the traditional fermentation process of GHQW were monitored, by using HS-SPME-GC/MS and high throughput 16 S rRNA and ITS sequencing techniques. Following a 32-day semi-open solid-state fermentation, massive changes in volatile profile and microbial communities were observed Based on these, the potential correlations between volatile components and microorganisms during the fermentation were explored by using Pearson correlation anal. It was revealed that 3 bacterial taxa, including Lactococcus lactis, Burkholderia gladioli and Cronobacter helveticus, and 5 fungal taxa, including Wickerhamomyces anomalus, Saccharomyces cerevisiae, Aspergillus vitricola, Aspergillus penicillioides and Monascus purpureus, showed strong connections with various volatile components. Thus these bacteria and fungi might play crucial roles in volatile components biosynthesis, and thus were preliminary considered as core functional microorganisms for GHQW brewing. The detailed information on the dynamic changes of volatile components and microbial communities throughout GHQW brewing can further expand our understanding of the formation mechanisms of GHQW aroma.

Food Microbiology published new progress about 16S rRNA Role: FFD (Food or Feed Use), BIOL (Biological Study), USES (Uses). 505-10-2 belongs to class alcohols-buliding-blocks, name is 3-(Methylthio)propan-1-ol, and the molecular formula is C4H10OS, Name: 3-(Methylthio)propan-1-ol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Waris, Muhammad Irfan published the artcileExpression Profiles and Biochemical Analysis of Chemosensory Protein 3 from Nilaparvata lugens (Hemiptera: Delphacidae), Computed Properties of 584-02-1, the main research area is CSP3 biomarker terpinene eicosane hexadecane mol docking Nilaparvata; Behavioral response; Chemosensory protein; Fluorescence binding assay; Molecular docking; Nilaparvata lugens; Sex-biased expression.

Abstract: Insects have evolved highly sensitive olfactory sensory systems to detect plant hosts and mates, with plant volatiles playing an important role in informing insect behavior. Chemosensory proteins (CSPs) are thought to play a key role in this process, but in this respect, there is limited information on brown planthopper Nilaparvata lugens, one of the most destructive pests of rice. To expand our understanding of CSP function in N. lugens we explored expression profiles and binding characteristics of NlugCSP3. The ligands with higher binding affinity were also validated by mol. docking and behavioral assays. NlugCSP3 mRNA was expressed at relatively higher levels in antennae and abdomen of 3-day-old unmated macropterous males as well as in antennae of 3-day mated macropterous and brachypterous females. Fluorescence competitive binding assays revealed that 5 out of 25 candidate volatiles are strong binders (Ki < 10 μM). Behavioral assays revealed that nonadecane and 2-tridecanone, which have high binding affinities in fluorescence competition-binding assays, displayed strong attractiveness to N. lugens. Pursuing this further, mol. docking anal. identified key amino acid residues involved in binding volatile compounds Overall, our data provide a base for further investigation of the potential physiol. functions of CSP3 in Nilaparvata lugens, and extend the function of NlugCSP3 in chemoreception of N. lugens. Journal of Chemical Ecology published new progress about Abdomen Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, Computed Properties of 584-02-1.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Liu, Shuxun published the artcileVolatile composition of bilberry wines fermented with non-Saccharomyces and Saccharomyces yeasts in pure, sequential and simultaneous inoculations, SDS of cas: 111-87-5, the main research area is alc ester aldehyde acetal bilberry wine Saccharomyces; Bilberry wine; Non-Saccharomyces yeast; Saccharomyces cerevisiae; Schizosaccharomyces pombe; Torulaspora delbrueckii; volatile composition.

Bilberry (Vaccinium myrtillus L.) juice was fermented with Torulaspora delbrueckii (TD291 and TD70526) and Schizosaccharomyces pombe (SP3796 and SP70572) in pure fermentation as well as in sequential and simultaneous inoculations with Saccharomyces cerevisiae 1116 (SC1116). Altogether, 56 volatile compounds were identified and semi-quantified with HS-SPME-GC/MS in bilberry products. Yeast fermentation prominently enhanced the aroma complexity of bilberry with a sharp increase in alcs., esters, aldehydes, and acetals. Compared to S. cerevisiae, T. delbrueckii produced less ethanol but more fusel alcs. that potentially enhance “”alc.”” and “”nail polish”” odors in TD70526 and less “”fruity”” esters in TD291. SP70572 resulted in high productions of undesirable compounds of acetoin and acetaldehyde but a low content of higher alcs. and esters, SP3796 produced a high content of fatty acid Et esters and acetoin. In comparison with monoculture of non-Saccharomyces yeast, sequential and simultaneous cultures of S. pombe and S. cerevisiae significantly decreased the content of acetoin while increased the relative level of esters; sequential cultures of T. delbrueckii and S. cerevisiae remarkably increased the concentration of acetaldehyde; simultaneous inoculations of S. cerevisiae with TD70526 and TD291 significantly decreased the content of fusel alcs. and increased the content of esters, resp. The findings suggested that non-Saccharomyces yeasts possess the potential to affect and modulate the aromatic profile of fermented bilberry products. Sequential and simultaneous inoculations with S. pombe strains and S. cerevisiae as well as simultaneous fermentation using T. delbrueckii strains and S. cerevisiae are optimal strategies to pos. influence the aroma profile of bilberry wines.

Food Microbiology published new progress about Acetals Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, SDS of cas: 111-87-5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts