Category: 492-62-6

Li, Qi; Gu, Peng; Zhang, Hao; Luo, Xin; Zhang, Jibiao; Zheng, Zheng published the artcile< Response of submerged macrophytes and leaf biofilms to the decline phase of Microcystis aeruginosa: Antioxidant response, ultrastructure, microbial properties, and potential mechanism>, Product Details of C6H12O6, the main research area is Microcystis leaf biofilm submerged macrophyte; Cyanobacterial exudates and extracts; Decline phase; Microbial properties; N-acylated-L-homoserine lactones; Submerged macrophyte.

Decaying cyanobacterial blooms carry a potential risk for submerged macrophyte and periphyton biofilms in aquatic environments. This study comprehensively studied the responses in growth, oxidative response, detoxification pathway, and ultrastructure characteristics of aquatic plants to Microcystis aeruginosa (M. aeruginosa) exudates and extracts released during the decline phase. Particular emphasis was placed on the variation of extracellular polymeric substances (EPS) and quorum-sensing signaling mols. The results showed that superoxide dismutase, peroxidase, and glutathione S-transferase were significantly induced as antioxidant response, and the malondialdehyde content increased. Increased content of MC-LR (1.129 μg L-1) and NH+4-N (1.35 mg L-1) were found in the decline phase of M. aeruginosa, which played a vital role in the damage to submerged plants. In addition, a change in the amount of osmophilic granules and a variation of organelles and membranes was observed A broad distribution of α-D-glucopyranose polysaccharides was dominant and aggregated into clusters in biofilm EPS in response to exposure to decaying M. aeruginosa. Furthermore, exposure to exudates and extracts changed the abundance and structure of the microbial biofilm community. Increased contents of N-acylated-L-homoserine lactone signal mol. might result in a variation of biofilm EPS production in response to decaying M. aeruginosa. These results expand the understanding of how submerged macrophyte and periphyton biofilms respond to environmental stress caused by exudates and extracts of decaying M. aeruginosa.

Science of the Total Environment published new progress about Allelochemicals Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 492-62-6 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H12O6, Product Details of C6H12O6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Duan, Xiaohui; Zhang, Mina; Du, Huan; Gu, Xiu; Bai, Caihong; Zhang, Liuqiang; Chen, Kaixian; Hu, Kaifeng; Li, Yiming published the artcile< Effect of Different Processing Methods on the Chemical Constituents of Scrophulariae Radix as Revealed by 2D NMR-Based Metabolomics>, Name: (2S,3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol, the main research area is Scrophularia metabolomics steaming chem markers; 2D NMR; Scrophulariae Radix; chemical markers; processing methods; “sweating” processing.

Scrophulariae Radix (SR) is one of the oldest and most frequently used Chinese herbs for oriental medicine in China. Before clin. use, the SR should be processed using different methods after harvest, such as steaming, “”sweating””, and traditional fire-drying. In order to investigate the difference in chem. constituents using different processing methods, the two-dimensional (2D) 1H-13C heteronuclear single quantum correlation (1H-13C HSQC)-based metabolomics approach was applied to extensively characterize the difference in the chem. components in the extracts of SR processed using different processing methods. In total, 20 compounds were identified as potential chem. markers that changed significantly with different steaming durations. Seven compounds can be used as potential chem. markers to differentiate processing by sweating, hot-air drying, and steaming for 4 h. These findings could elucidate the change of chem. constituents of the processed SR and provide a guide for the processing. In addition, our protocol may represent a general approach to characterizing chem. compounds of traditional Chinese medicine (TCM) and therefore might be considered as a promising approach to exploring the scientific basis of traditional processing of TCM.

Molecules published new progress about Amino acids Role: ANT (Analyte), BSU (Biological Study, Unclassified), PUR (Purification or Recovery), THU (Therapeutic Use), ANST (Analytical Study), BIOL (Biological Study), PREP (Preparation), USES (Uses). 492-62-6 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H12O6, Name: (2S,3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Fakhfakh, Jawhar; Athmouni, Khaled; Mallek-Fakhfakh, Hanen; Ayedi, Habib; Allouche, Noureddine published the artcile< Polysaccharide from Lycium arabicum: Structural Features, in Vitro Antioxidant Activities and Protective Effect against Oxidative Damage in Human Erythrocytes>, Product Details of C6H12O6, the main research area is Lycium polysaccharide antioxidant erythrocyte; Lycium arabicum; antioxidant potential; human erythrocytes; polysaccharide.

In this research work, a water-soluble polysaccharide (LAP) isolated from the fruits of Lycium arabicum was investigated. LAP contains carbohydrates (82.45±1.23%), protein (1.56±0.21%), and uronic acids (3.56±0.34%). The anal. of the monosaccharide composition revealed the presence of rhamnose, arabinose, galactose, glucose and mannose in a molar ratio of 4.7 : 1.5 : 1 : 8.7 : 16.4 : 5.6. The extracted polysaccharide (PS) was considered as heterogeneous and highly branched by interpreting its GC/MS, FT-IR and NMR data. Crystallinity of LAP was inferred from its X-ray diffractometry (XRD) and SEM (SEM) anal. LAP exhibited an interesting stability at high temperatures (∼254°C) and in a wide range of pH (3-9) deduced, resp., from its DSC and zeta potential anal. LAP displayed a strong antioxidant activity at low concentrations evaluated by the 2,2-diphenyl-1-picrylhydrazyl (DPPH)-radical scavenging, ferric reducing activity power (FRAP), free radical scavenging ability, superoxide radical-scavenging and hydroxyl radical-scavenging abilities. Inhibition of erythrocyte hemolysis and lipid peroxidation was also assessed. In 5 h, LAP treatment allowed the protection of the damaged erythrocytes caused by AAPH (2,2-azobis(2-amidinopropane) dihydrochloride), to reduce the level of malondialdehyde (MDA) as well as to increase the reduced glutathione (GSH) level.

Chemistry & Biodiversity published new progress about Antioxidants. 492-62-6 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H12O6, Product Details of C6H12O6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Liu, Chun-Ping; Li, Xiong; Lai, Ge-Na; Li, Jin-Hua; Jia, Wen-Yu; Cao, Ying-Ying; Xu, Wen-Xing; Tan, Qing-Long; Zhou, Chang-Yuan; Luo, Min; Zhang, Xue-Ying; Yuan, Dao-Qing; Tian, Jin-Ying; Zhang, Xian; Zeng, Xing published the artcile< Mechanisms of macrophage immunomodulatory activity induced by a new polysaccharide isolated from Polyporus umbellatus (Pers.) Fries>, Related Products of 492-62-6, the main research area is Polyporus extract polysaccharide anticancer immunomodulator NFkB NLRP3 bladder cancer; NF-κB pathway; NLR P3 inflammasome; Polyporus umbellatus; immunomodulatory activity; polysaccharide.

Bladder cancer is one of the most malignant tumors closely associated with macrophage immune dysfunction. The Chinese medicine polyporus has shown excellent efficacy in treating bladder cancer, with minimal side effects. However, its material basis and mechanism of action remain unclear. A new water-soluble polysaccharide (HPP) with strong immunomodulatory activity was isolated from the fungus Polyporus umbellatus (Pers.) Fries. HPP had an average mol. weight of 6.88 kDa and was composed mainly of an <-(1→ 4)-linked D-galactan backbone. The immunomodulatory activity of HPP was determined in vitro, and the results revealed that it could obviously increase the secretion of immune factors by IFN-γ-stimulated macrophages, including nitric oxide (NO), interleukin-6 (IL-6), interleukin-1β (IL-1β), RANTES and interleukin-23 (IL-23), and the expression of the cell membrane mol. CD80. In addition, HPP was recognized by Toll-like receptor 2 (TLR2) and activated the signaling pathways of NF-κB and NLRP3 in a bladder cancer microenvironment model, indicating that HPP could enhance host immune system function. These findings demonstrated that HPP may be a potential immune modulator in the treatment of immunol. diseases or bladder cancer therapy. Frontiers in Chemistry (Lausanne, Switzerland) published new progress about Antitumor agents. 492-62-6 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H12O6, Related Products of 492-62-6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Kajiki, Takahito; Komba, Shiro; Iwaura, Rika published the artcile< Supramolecular Organogelation Directed by Weak Noncovalent Interactions in Palmitoylated 1,5-Anhydro-D-Glucitol Derivatives>, COA of Formula: C6H12O6, the main research area is palmitoylated anhydro glucitol supramol organogelation noncovalent interaction; carbohydrates; gelators; hydrogen bonding; nanofibers; self-assembly.

We synthesized a series of novel alicyclic compounds by modifying 1,5-anhydro-D-glucitol with two to four palmitoyl chains, and we explored their self-assembly and gelation behaviors in paraffin. The obtained organogels were studied by field emission SEM, at. force microscopy, variable-temperature Fourier transform IR spectroscopy, X-ray diffraction anal., polarized optical microscopy, and transmission spectroscopy. While all the palmitoylated derivatives spontaneously formed fibrous networks and gelated the paraffin, an acetylated derivative of 1,5-anhydro-D-glucitol did not gelatinize the solvent, thus indicating the importance of aliphatic chains for gelation. Interestingly, α- and β- D-glucopyranose with five palmitoyl chains neither gelatinized the solvent nor formed fibrous networks, thus suggesting that the absence of C-1 substitution in 1,5-anhydro-D-glucitol is important for gelation. Fourier transform IR spectroscopy suggested that the formation of weak hydrogen bonds between the carbonyl groups and the C-H groups was the driving force for formation of the supramol. fibers and for gelation of the solvent.

ChemPlusChem published new progress about Gelation. 492-62-6 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H12O6, COA of Formula: C6H12O6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Wang, Wen-yan; Wang, Ru; Abbas, Ghulam; Wang, Gang; Zhao, Zhi-guo; Deng, Liang-wei; Wang, Lan published the artcile< Aggregation enhances the activity and growth rate of anammox bacteria and its mechanisms>, Recommanded Product: (2S,3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol, the main research area is anammox bacteria aggregation growth biol wastewater treatment; Aggregation; Anammox bacteria; Extracellular polymeric substances; Glucopyranose polysaccharides; Norspermidine; PVA-SA gel immobilization.

The aggregation of anaerobic ammonium oxidation (anammox) bacteria is important for the start-up and biomass retention of anammox processes. However, it is unclear whether it is beneficial to the activity, growth and reproduction of anammox bacteria. In this study, four reactor systems were developed to explore the effects of aggregation on anammox activity, growth and reproduction, after excluding the contribution of aggregation to sludge settling and retention. Results demonstrated that (i) compared with free-living planktonic bacteria, the aggregated bacteria had a higher volumetric nitrogen removal rate (0.75 kg-N/(m3·d)) and specific nitrogen removal activity (1.097 kg-N/VSS/d). And after 67 days cultivation, it had the higher sludge concentration and relative abundance (92.4%); (ii) compared with acidic polysaccharides and α-D-glucopyranose polysaccharides, β-D-glucopyranose polysaccharide play more essential roles of anammox aggregation; (iii) norspermidine triggered the secretion of α-D-glucopyranose polysaccharides to combat the toxicity, and inhibited biomass growth rate; (iv) immobilization in polyvinyl alc. (10%) or sodium alginate (2%) gel beads was better than sodium alginate-chitosan gel beads and norspermidine (biofilm inhibitor) for the cultivation of free-living planktonic anammox bacteria. This is the first comparative study of three methods for cultivating free-living anammox bacteria. In conclusion, we found that the aggregation of anammox sludge not only facilitates biomass retention but also enhances the bioactivity, relative abundance, growth, and reproduction rate of anammox bacteria. The work is helpful to understand the formation of anammox granular sludge and contribute to the fast start-up and stable operation in anammox application.

Chemosphere published new progress about Acidic polysaccharides Role: NUU (Other Use, Unclassified), USES (Uses). 492-62-6 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H12O6, Recommanded Product: (2S,3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Dong, Yue; Sui, Mingrui; Jiang, Yiying; Wu, Jianyu; Wang, Xin published the artcile< Dibutyl phthalate weakens the role of electroactive biofilm as an efficient wastewater handler and related mechanism>, Reference of 492-62-6, the main research area is dibutyl phthalate electroactive biofilm wastewater handler related mechanism; Bacterial activity; Dibutyl phthalate exposure; Electroactive biofilm; Electron exchange capacity; Pollutant degradation.

Plasticizer plays an imperceptible role in interfering with the structure and function of wastewater biofilms, but the inherent influence mechanism still remains unknown. Here, the responses in electrochem., structural, microbial properties of electroactive biofilm (EAB) to plasticizer (di-Bu phthalate, DBP) were comprehensively elucidated, especially for the property variation of extracellular polymeric substances (EPS). The biofilm-0 in DBP-absent environment contributed to 22.9% and 63.9% higher current, compared to those in 1 mg/L and 10 mg/L DBP environment (biofilm-1 and biofilm-10). Chronic exposure to high-concentration DBP significantly boosted the content and distribution width of polysaccharide in EPS, but the electron exchange capacity of EPS decreased 76.6% to 0.146μmol e-/mg EPS for biofilm-10. The bacteria were subjected to metabolic function loss, in terms of esterase activity and membrane integrity, by using flow cytometry. The DBP exposure also imposed selective pressure on enrich EPS-secretion-related bacteria, while the Geobacter species decreased from 71.2% (biofilm-0) to 55.8% (biofilm-10). Consequently, the DBP exposure suppressed the pollutant degradation rate, which provided new insights into the EAB role as a promising core for wastewater treatment in plasticizer-existing environments.

Science of the Total Environment published new progress about Acinetobacter. 492-62-6 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H12O6, Reference of 492-62-6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Esquivel-Fajardo, Edgar A.; Martinez-Ascencio, Eduardo U.; Oseguera-Toledo, Miguel E.; Londono-Restrepo, Sandra M.; Rodriguez-Garcia, Mario E. published the artcile< Influence of physicochemical changes of the avocado starch throughout its pasting profile: Combined extraction>, Reference of 492-62-6, the main research area is Na calcium amylopectin potassium avocado behavior; C-type starch; Hexagonal and orthorhombic structures; Isolation process; Lamellae; Mineral composition.

This work focused on studying the effect of lamellae presence on the pasting profile of isolated avocado starch (C-type) obtained by a combined mech. and ultrasonic process. Inductively Couple Plasma indicates that this starch is rich in P, K, Na, and Ca. This starch exhibits the most cryst structure reported so far. The correlation between the morphol. and structural properties throughout its pasting profile explains its apparent viscosity behavior. Granules exhibit a non-conventional irregular morphol. with sizes ranging from 35 to 40μm in their long side. DSC reveals endothermal transitions at 68°C and 119°C associated with the nanocrystals solvation and amylose-lipid complex, respectivley. After gelatinization, the presence of lamellae originated from the partial fragmentation of the crystals. The pasting end exhibited a combined behavior between custard and hydrogel. This correlation could be considered a new methodol. to understand the pasting behaviors in any starch.

Carbohydrate Polymers published new progress about Avocado. 492-62-6 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H12O6, Reference of 492-62-6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Ghosh, Soumen; Herink, Georg; Perri, Antonio; Preda, Fabrizio; Manzoni, Cristian; Polli, Dario; Cerullo, Giulio published the artcile< Broadband Optical Activity Spectroscopy with Interferometric Fourier-Transform Balanced Detection>, Name: (2S,3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol, the main research area is broadband optical activity spectroscopy interferometric fourier transform balanced detection.

Spectrally resolved measurements of optical activity, such as CD (CD) and ORD (ORD), are powerful tools to study chiroptical properties of (bio)mol. and nanoplasmonic systems. The wider utilization of these techniques, however, has been impeded by the bulky and slow design of conventional spectropolarimeters, which have been limited to a narrowband scanning approach for more than 50 years. In this work, we demonstrate broadband measurements of optical activity by combining a balanced detection scheme with interferometric Fourier-transform spectroscopy. The setup utilizes a linearly polarized light field that creates an orthogonally polarized weak chiral free-induction-decay field, along with a phase-locked achiral transmitted signal, which serves as the local oscillator for heterodyne amplification. By scanning the delay between the two fields with a birefringent common-path interferometer and recording their interferogram with a balanced detector that measures polarization rotation, broadband CD and ORD spectra are retrieved simultaneously with a Fourier transform. Using an incoherent thermal light source, we achieve state-of-the-art sensitivity for CD and ORD across a broad wavelength range in a remarkably simple setup. We further demonstrate the potential of our technique for highly sensitive measurements of glucose concentration and the real-time monitoring of ground-state chem. reactions. The setup also accepts broadband pulses and will be suitable for broadband transient optical activity spectroscopy and broadband optical activity imaging.

ACS Photonics published new progress about Birefringence. 492-62-6 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H12O6, Name: (2S,3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Diacci, Chiara; Abedi, Tayebeh; Lee, Jee Woong; Gabrielsson, Erik O.; Berggren, Magnus; Simon, Daniel T.; Niittylae, Totte; Stavrinidou, Eleni published the artcile< Diurnal in vivo xylem sap glucose and sucrose monitoring using implantable organic electrochemical transistor sensors>, Category: alcohols-buliding-blocks, the main research area is Populus xylem glucose sucrose organic electrochem transistor sensor homeostasis; Bioelectronics; Biotechnology; Plant Physiology.

Bioelectronic devices that convert biochem. signals to electronic readout enable biosensing with high spatiotemporal resolution These technologies have been primarily applied in biomedicine while in plants sensing is mainly based on invasive methods that require tissue sampling, hindering in-vivo detection and having poor spatiotemporal resolution Here, we developed enzymic biosensors based on organic electrochem. transistors (OECTs) for in-vivo and real-time monitoring of sugar fluctuations in the vascular tissue of trees. The glucose and sucrose OECT-biosensors were implanted into the vascular tissue of trees and were operated through a low-cost portable unit for 48h. Our work consists a proof-of-concept study where implantable OECT-biosensors not only allow real-time monitoring of metabolites in plants but also reveal new insights into diurnal sugar homeostasis. We anticipate that this work will contribute to establishing bioelectronic technologies as powerful minimally invasive tools in plant science, agriculture and forestry.

iScience published new progress about Biosensors. 492-62-6 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H12O6, Category: alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts