Tag: M.W=150-200

Jia, Yanan; Gao, Xudong; Xue, Zihan; Wang, Yajie; Lu, Yangpeng; Zhang, Min; Panichayupakaranant, Pharkphoom; Chen, Haixia published the artcile< Characterization, antioxidant activities, and inhibition on α-glucosidase activity of corn silk polysaccharides obtained by different extraction methods>, HPLC of Formula: 3458-28-4, the main research area is review alpha glucosidase antioxidant polysaccharides extraction; Corn silk; Extraction method; Polysaccharide.

A review. The polysaccharides (CSPw, CSPc, CSPa, and CSPu) were prepared by hot water extraction, acid-assisted extraction, alk.-assisted extraction, and ultrasound-assisted extraction from corn silk, resp. High performance gel permeation chromatog. (HPGPC), fourier-transform IR (FT-IR) spectroscopy, and SEM (SEM) results indicated that the extraction methods had an obvious impact on the mol. weight, structure, and morphol. of the CSPs. Among the four polysaccharides, CSPu showed the highest inhibitory α-glucosidase activity, which might be related to its smaller mol. weight Furthermore, kinetics analyses revealed that CSPu had significant inhibition of α-glucosidase in a non-reversible and competitive manner. Fluorescence quenching anal. illustrated that the interaction mechanism of CSPu and α-glucosidase was claimed as a static quenching mechanism. Isothermal titration calorimetry (ITC) anal. showed that the main driving forces for the interaction of CSPu with α-glucosidase was hydrogen bonding and the binding interactions of them occurred spontaneously.

International Journal of Biological Macromolecules published new progress about Antioxidants. 3458-28-4 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H12O6, HPLC of Formula: 3458-28-4.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Ruschhaupt, Peter; Varzi, Alberto; Passerini, Stefano published the artcile< Natural Polymers as Green Binders for High-Loading Supercapacitor Electrodes>, Product Details of C6H12O6, the main research area is natural polymer green binder high loading supercapacitor electrode; binders; carbohydrates; flexible electrodes; high mass loading; supercapacitors.

The state-of-the-art aqueous binder for supercapacitors is CM-cellulose (CMC). However, it limits the mass loading of the coatings owing to shrinkage upon drying. In this work, natural polymers, i.e., guar gum (GG), wheat starch (WS), and potato starch (PS), were studied as alternatives. The flexibility and adhesion of the resulting coatings and electrochem. performance was tested. The combination of 75:25 (weight/weight) ratio PS/GG showed a promising performance. Electrodes were characterized by SEM, thermal, adhesion, and bending tests. Their electrochem. properties were determined by cyclic voltammetry, electrochem. impedance spectroscopy, and cycling experiments The PS/GG mixture conformed well to criteria for industrial production, enabling mass loadings higher than CMC (7.0 mg cm-2) while granting the same specific capacitance (26 F g-1) and power performance (20 F g-1 at 10 A g-1). Including the mass of the current collector, this represents a +45% increase in specific energy at the electrode level.

ChemSusChem published new progress about Binders. 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

Ji, Hai-yu; Chen, Pei; Yu, Juan; Feng, Ying-ying; Liu, An-jun published the artcile< Effects of Heat Treatment on the Structural Characteristics and Antitumor Activity of Polysaccharides from Grifola frondosa>, Recommanded Product: (2S,3S,4R,5R)-2,3,4,5,6-Pentahydroxyhexanal, the main research area is Grifola polysaccharide antitumor agent heat treatment hepatocellular carcinoma; Antitumor; Heat treatment; Polysaccharides from Grifola frondosa; Structure.

This study investigated the effects of heat treatment on structural characteristics and in vitro antitumor activity of polysaccharides from Grifola frondosa. GFP-4 (extracted at 4°C), GFP-4-80 (80°C treatment on GFP-4) and GFP-80 (extracted at 80°C) were prepared, and the chem. composition anal. showed that their total sugar contents were all higher than 90%, high-performance gel-permeation chromatog. (HPGPC), ion chromatog. (IC) and Fourier-transform IR spectroscopy (FTIR) results demonstrated that GFP-4 were degraded and denatured after 80°C heat treatment, MTT and JC-1 results showed that GFP-4 exhibited higher inhibitory effects on HepG2 cells in vitro than GFP-4-80 and GFP-80. Our study suggested that heat treatment at 80°C on polysaccharides from Grifola frondosa would destroy their structure and attenuate their antitumor effects.

Applied Biochemistry and Biotechnology published new progress about Antitumor agents. 3458-28-4 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H12O6, Recommanded Product: (2S,3S,4R,5R)-2,3,4,5,6-Pentahydroxyhexanal.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Yuan, Yiqiong; Li, Chuan; Zheng, Qianwen; Wu, Jixiang; Zhu, Kexue; Shen, Xuanri; Cao, Jun published the artcile< Effect of simulated gastrointestinal digestion in vitro on the antioxidant activity, molecular weight and microstructure of polysaccharides from a tropical sea cucumber (Holothuria leucospilota)>, Related Products of 3458-28-4, the main research area is Holothuria simulated gastrointestinal digestion polysaccharide antioxidant microstructure.

The physicochem. properties of Holothuria leucospilota polysaccharides (HLP) were measured, and the changes of mol. weight (Mw), antioxidant activity and microstructure in vitro were studied. The Mw of HLP was approx. 52.80 kDa, and the monosaccharide composition was primarily fucose, rhamnose and glucuronic acid. HLP showed good antioxidant activity at high concentration (≥2 mg/mL), and the DPPH (1,1-Diphenyl-2-picryl-hydrazil) free radical scavenging rate reached approx. 84%. It was observed that saliva did not have an effect on the Mw and antioxidant capability of HLP. Gastric and intestinal digestion significantly reduced the Mw of HLP (from 52.80 kDa to 14.67 kDa and 12.01 kDa) and maintained high antioxidant activity. In addition, the structure and surface morphol. were markedly altered. After simulated gastric digestion, the HLP changed from a smooth, irregular, and angular structure to a layered honeycomb with a large volume This result demonstrated that the decrease of Mw after gastric digestion was caused by the destruction of aggregates. Due to the decomposition of glycosidic bonds after digestion in intestine, HLP showed loose, small and blocky structures. Thus, HLP had antioxidant activity, and this activity was improved after gastric and intestinal digestion.

Food Hydrocolloids published new progress about Digestive juice. 3458-28-4 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H12O6, Related Products of 3458-28-4.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Wang, Yun; Wang, Shengxuan; Song, Rongzhen; Cai, Jingjing; Xu, Jingjing; Tang, Xiaozhen; Li, Ningyang published the artcile< Ginger polysaccharides induced cell cycle arrest and apoptosis in human hepatocellular carcinoma HepG2 cells>, Safety of (2S,3S,4R,5R)-2,3,4,5,6-Pentahydroxyhexanal, the main research area is hepatocellular carcinoma cell cycle arrest apoptosis polysaccharide; Apoptosis; Cell cycle arrest; Ginger polysaccharide.

In this study, ginger polysaccharide (GP) was obtained from ginger by enzymic method, its chem. properties and antitumor activity were investigated. The results indicated that the composition and proportion of GP were L-rhamnose, D-arabinose, D-mannose, D-glucose and D-galactose in a molar ratio of 3.64:5.37:3.04:61.03:26.91, GP had the characteristic absorption peak of polysaccharide. Congo red experiment showed that GP had a triple helix structure, which could have anti-tumor effect. Furthermore, MTT assay, cell morphol. observation, nuclear morphol. observation and reactive oxygen species observation demonstrated that GP had significant antitumor effect. Flow cytometry suggested that GP could promote apoptosis and arrest cells in G0-G1 phase. Real-time fluorescence quantification and Western blot revealed that GP could up-regulate the expression of Bax, Fas, FasL, caspase-3, p21 and p53, and down-regulate the expression of Bcl-2. These studies suggested that GP would be used as an antitumor drug in foods to promote the development of functional foods.

International Journal of Biological Macromolecules published new progress about Absorption. 3458-28-4 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H12O6, Safety of (2S,3S,4R,5R)-2,3,4,5,6-Pentahydroxyhexanal.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Martin-Gomez, Andres; Arroyo-Manzanares, Natalia; Rodriguez-Estevez, Vicente; Arce, Lourdes published the artcile< Use of a non-destructive sampling method for characterization of Iberian cured ham breed and feeding regime using GC-IMS>, HPLC of Formula: 78-70-6, the main research area is cured ham gas chromatog IMS food quality Iberian; Chemometrics; Classification; Needle; Non-destructive sampling; Volatile compounds.

Iberian cured ham from purebred pigs fattened on grazing acorns is a highly appreciated product. There are several anal. methods to avoid its labeling fraud; however, these require opening the ham. The aim of this work is testing a non-destructive sampling method which does not spoil the phys. integrity of the ham. It consists of a puncture with a needle imitating a traditional olfactory system. After removing the needle impregnated with fat, its volatiles are analyzed with a Gas Chromatog. (GC) coupled to Ion Mobility Spectrometry (IMS). The potential of this methodol. was studied analyzing 156 Iberian hams from pigs under two different feeding regimes (acorns vs. feed) and from different breed (Iberian vs. Duroc crossed). Intensity of GC-IMS plot features was extracted and chemometric differentiation models were obtained; one for feeding regime and another for breed, providing validated classification rates of 91.7% and 100%, resp. In addition, 29 features used for construction of both models were tentatively identified using chem. standards The suitability of the method for quality control anal. was characterized by means of a precision study. As a conclusion, GC-IMS becomes a useful tool to guarantee dry-cured Iberian ham authenticity and detect labeling fraud.

Meat Science published new progress about Ham. 78-70-6 belongs to class alcohols-buliding-blocks, and the molecular formula is C10H18O, HPLC of Formula: 78-70-6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Lou, Xiaowei; Zhai, Doudou; Yang, Hongshun published the artcile< Changes of metabolite profiles of fish models inoculated with Shewanella baltica during spoilage>, Formula: C6H12O6, the main research area is Shewanella baltica spoilage metabolite profile fish model.

Three Shewanella baltica strains (ABa4, ABe2, BBe1) were inoculated into sterile fish sticks and broths, and the metabolic changes during chilled storage were determined using NMR. Totally 39 metabolites in two fish models were identified, which were involved in four main metabolic pathways: peptide and amino acid, nitrogen, nucleotide, and carbohydrate pathways. In fish sticks, proteins were hydrolyzed to increase amino acids (up to 230%) by S. baltica, especially by strain ABa4. In both fish sticks and broths, S. baltica induced the formations of biogenic amines from amino acids and trimethylamine-N-oxide (TMAO), and the degradations of adenine nucleotides to form inosine and hypoxanthine (2- to 4-fold increment). In addition, sugars and lactate were consumed by S. baltica, accompanied with the productions of acetate and succinate. Strain BBe1 showed higher TVB-N and capability of biogenic amine production and nucleotide degradation The changes could be attributed to the enzymes of S. baltica during growth and respiration. These findings confirm that S. baltica has highly spoilage potential to decompose nutrients in fish, mainly via nitrogen and nucleotide pathways. This study provides insight on controlling seafood spoilage by intervening degradation pathways.

Food Control published new progress about Acetates Role: BUU (Biological Use, Unclassified), BIOL (Biological Study), USES (Uses). 492-62-6 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H12O6, Formula: C6H12O6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Ahmed, Kabirun; Saikia, Gangutri; Paul, Sivangi; Baruah, Satyajit Dey; Talukdar, Hiya; Sharma, Mitu; Islam, Nashreen S. published the artcile< Water-soluble polymer anchored peroxotitanates as environmentally clean and recyclable catalysts for mild and selective oxidation of sulfides with H2O2 in water>, Application In Synthesis of 699-12-7, the main research area is sulfoxide sulfone green preparation peroxotitanate polymer recyclable catalyst; sulfide selective oxidation.

Anchoring of peroxotitanium (pTi) species to linear water-soluble acrylic acid based polymers, poly(sodium acrylate) (PA) and poly(sodium methacrylate) (PMA) led to the successful synthesis of a pair of new, water-tolerant and recyclable catalysts of the type [Ti2(O2)2O2(OH)2]4–L (L = PA or PMA), highly effective in chemoselective sulfoxidation of organic sulfides I (R = C6H5, Me, 4-MeC6H4, etc.; R’ = Me, C6H5, Bn, etc.) with 30% H2O2 in aqueous medium at ambient temperature The catalytic protocol is high yielding (TOF up to 11,280 h-1), operationally simple as well as environmentally clean and safe, being free from halide, or any other toxic auxiliaries. The catalysts are sufficiently stable to afford easy recyclability for at least 10 consecutive reaction cycles of sulfoxidation with consistent activity selectivity profile. Oxidation of dibenzothiophene (DBT) to resp. high purity sulfoxide or sulfone could also be accomplished using the same catalysts by variation of reaction conditions.

Tetrahedron published new progress about Green chemistry. 699-12-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H10OS, Application In Synthesis of 699-12-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Bhanja, Piyali; Das, Sabuj K.; Bhunia, Kousik; Pradhan, Debabrata; Hayashi, Taku; Hijikata, Yuh; Irle, Stephan; Bhaumik, Asim published the artcile< A New Porous Polymer for Highly Efficient Capacitive Energy Storage>, Application In Synthesis of 4396-13-8, the main research area is porous polymer supercapacitor electrode capacitance triazine isophthalaldehyde.

The new porous polymer TPDA-1 has been synthesized via solvothermal Schiff base condensation reaction between two organic monomers, i.e., 2,4,6-trihydroxyisophthalaldehyde and 1,3,5-tris(4-aminophenyl)triazine. The TPDA-1 material showed a very high specific capacitance of 469.4 F g-1, at 2 mV s-1 scan rate, together with a high sp. surface area of 545 m2 g-1. It also exhibited excellent cyclic stability with 95% retention of its initial specific capacitance after 1000 cycles at 5 A g-1, suggesting its potential as a high performance supercapacitor. Extended π-conjugation and ion conduction inside the micropores throughout the whole polymeric matrix and high BET surface area could be responsible for this high supercapacitor performance in energy storage device. TPDA-1 has been characterized thoroughly by various electrochem. techniques such as cyclic voltammetry, galvanic charge-discharge, and electrochem. impedance spectroscopy. Our exptl. results suggested a high potential of this porous polymer in energy storage devices for future generation.

ACS Sustainable Chemistry & Engineering published new progress about Aminoplasts Role: PRP (Properties), SPN (Synthetic Preparation), TEM (Technical or Engineered Material Use), PREP (Preparation), USES (Uses). 4396-13-8 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H6O5, Application In Synthesis of 4396-13-8.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Xiong, Jiu-Qiang; Zhao, Chen-Yu; Qin, Jing-Yu; Cui, Pengfei; Zhong, Qiu-Lian; Ru, Shaoguo published the artcile< Metabolic perturbations of Lolium perenne L. by enrofloxacin: Bioaccumulation and multistage defense system>, Synthetic Route of 492-62-6, the main research area is glycolysis tricarboxylic acid metabolic perturbation bioaccumulation Lolium perenne; Defense systems; Ecotoxicological risks; Energy metabolism; Pasture grass; Pharmaceutical contaminants; Reclaimed water.

Plants are readily exposed to the antibiotics residues in reclaimed water indicating an urgent need to comprehensively analyze their ecotoxicol. effects and fate of these emerging contaminants. Here, we unraveled the dissemination of enrofloxacin (ENR) in a pasture grass, Lolium perenne L., and identified multistage defense systems as its adaptation mechanism. Uptaken concentrations of ENR ranged from 1.28 to 246.60μg g-1 with bioconcentration factors (BCF) upto 15.13, and translocation factors (TF) upto 0.332. The antioxidant enzymic activities such as superoxide dismutase, peroxidase, and catalase were increased by upto 115%. Further transcriptomics demonstrated that differentially expressed genes (DEGs) involved in glycolysis, tricarboxylic acid (TCA) cycle, oxidative phosphorylation, and glutathione metabolism were significantly up-regulated by 1.56-5.93, 3-7 and 1.04-6.42 times, resp.; while, the DEGs in nitrogen and sulfur metabolism pathways were significantly up-regulated by 1.06-5.64 and 2.64-3.54 folds. These processes can supply energy, signaling mols., and antioxidants for detoxification of ENR in ryegrass. Such results provide understanding into fasting grass adaptability to antibiotics by enhancing the key protective pathways under organic pollutant stresses in environments.

Journal of Hazardous Materials published new progress about Antibiotics. 492-62-6 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H12O6, Synthetic Route of 492-62-6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts