Tag: M.W=150-200

Yuan, Shuai; Xu, Chang-Yuan; Xia, Jie; Feng, Yan-Ni; Zhang, Xi-Feng; Yan, You-Yu published the artcile< Extraction of polysaccharides from Codonopsis pilosula by fermentation with response surface methodology>, Electric Literature of 3458-28-4, the main research area is Codonopsis polysaccharide antioxidant response surface methodol; antioxidation; codonopsis; polysaccharide; response surface method.

Codonopsis pilosula is a kind of traditional Chinese medicine used to treat weak spleens, stomach problems, anemia, and fatigue. Polysaccharide is one of main components of Codonopsis pilosula. In this study, response surface methodol. (RSM) was used to optimize the extraction parameters of Codonopsis pilosula polysaccharides (CPP) by fermentation The exaction temperature (°C), yeast liquid volume (2 mg/mL, ml), and time (h) were employed effects. Results indicated that the best extraction conditions were the following: extraction temperature 24.75°C, yeast liquid volume 2.96 mL (5.92 mg), and a fermentation time of 21.03 h. After purification with DE52 and Sephadex G-100, the mol. structure was determined by UV-visible (UV) spectroscopy, Fourier transform IR (FTIR) spectroscopy, and NMR (NMR) (1H and 13C). The monosaccharide composition of CPP1 was determined to be mannose (1.76%), glucose (97.38%), and arabinose (0.76%). CPP1 exhibited high antioxidant activities in scavenging ABTS radicals, ferreous ions, and superoxide ion radicals. Thus, CPP1 could be used as an antioxidant or functional food.

Food Science & Nutrition (Hoboken, NJ, United States) published new progress about Antioxidants. 3458-28-4 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H12O6, Electric Literature of 3458-28-4.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Brain, K. R.; Green, D. M.; Jones, A. C.; Walters, K. A.; Api, A. M.; Selechnik, D.; Joshi, K. published the artcile< In vitro human skin absorption of linalool: Effects of vehicle composition, evaporation and occlusion on permeation and distribution>, Synthetic Route of 78-70-6, the main research area is Linalool; Occlusion; Vehicle effects.

In vitro human skin permeation and distribution of the fragrance material linalool (3,7-dimethyl-1,6-octadien-3-ol, CAS Number 78-70-6) following application in a range of single and mixed vehicles was determined, under unoccluded and occluded conditions, using human epidermal membranes. Vehicles were (70/30 volume/volume) ethanol[EtOH]/water, dipropyleneglycol [DPG], di-Et phthalate [DEP], (25/75 volume/volume) EtOH/DEP, (25/75 volume/volume) EtOH/DPG and petrolatum. Worst case absorbed dose values (% applied dose) for linalool under unoccluded conditions varied from 1.84% (DPG) to 4.08% (EtOH/water) and under occluded conditions from 5.9% (DEP) to 14.7% (EtOH/water). Occlusion always increased absorption but the magnitude of the effect varied with the vehicle from 2 to 6-fold. This study demonstrated that in vitro human skin permeation of linalool varied quite widely between test vehicles and that the magnitude of the effect of occlusion was also vehicle dependent. This was particularly significant in view of the reported variations in biol. responses using different vehicles (Lalko et al., 2004; Politano et al., 2006).

International Journal of Pharmaceutics (Amsterdam, Netherlands) published new progress about 78-70-6. 78-70-6 belongs to class alcohols-buliding-blocks, and the molecular formula is C10H18O, Synthetic Route of 78-70-6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Meng, Manli; Liu, Shuyue; Wang, Xinhua published the artcile< Pressure retarded osmosis coupled with activated sludge process for wastewater treatment: Performance and fouling behaviors>, Formula: C6H12O6, the main research area is membrane wastewater treatment osmosis biofoulant activated sludge pore; Forward osmosis; Membrane fouling; Pressure retarded osmosis; Support layer; Wastewater treatment.

A novel hybrid technol. integrating pressure retarded osmosis with activated sludge process (denoted as PRO-MBR) was proposed in this study for wastewater treatment. Here, performance and fouling behaviors of PRO-MBR were investigated. Excellent contaminants removal and power production were simultaneously achieved in the PRO-MBR. A significant drop of water flux in the PRO-MBR was mainly due to the severe fouling of the support layer in forward osmosis (FO) membrane including internal fouling and external fouling. Although the external fouling was identified to be the major type of fouling, the internal fouling dominated the overall decline of water flux. In addition, organic foulants and biofoulants were the dominant foulants for the external fouling while inorganic foulants were equal to organic foulants and biofoulants for the internal fouling. According to the variations of water flux in the PRO-MBR, the development of support layer fouling was divided into three stages.

Bioresource Technology published new progress about Biopolymers Role: BSU (Biological Study, Unclassified), 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

Cvetko, Ana; Kifer, Domagoj; Gornik, Olga; Klaric, Lucija; Visser, Elizabeth; Lauc, Gordan; Wilson, James F.; Stambuk, Tamara published the artcile< Glycosylation alterations in multiple sclerosis show increased proinflammatory potential>, Category: alcohols-buliding-blocks, the main research area is glycosylation multiple sclerosis proinflammatory potential; N-glycosylation; biomarkers; immunoglobulin G in inflammation; multiple sclerosis; plasma glycoproteins.

Multiple sclerosis (MS) is an inflammatory autoimmune disorder affecting the central nervous system (CNS), with unresolved etiol. Previous studies have implicated N-glycosylation, a highly regulated enzymic attachment of complex sugars to targeted proteins, in MS pathogenesis. We investigated individual variation in N-glycosylation of the total plasma proteome and of IgG in MS. Both plasma protein and IgG N-glycans were chromatog. profiled and quantified in 83 MS cases and 88 age- and sex-matched controls. Comparing levels of glycosylation features between MS cases and controls revealed that core fucosylation (p = 6.96 x 10-3) and abundance of high-mannose structures (p = 1.48 x 10-2) were the most prominently altered IgG glycosylation traits. Significant changes in plasma protein N-glycome composition were observed for antennary fucosylated, tri- and tetrasialylated, tri- and tetragalactosylated, high-branched N-glycans (p-value range 1.66 x 10-2-4.28 x 10-2). Classification performance of N-glycans was examined by ROC curve anal., resulting in an AUC of 0.852 for the total plasma N-glycome and 0.798 for IgG N-glycome prediction models. Our results indicate that multiple aspects of protein glycosylation are altered in MS, showing increased proinflammatory potential. N-glycan alterations showed substantial value in classification of the disease status, nonetheless, addnl. studies are warranted to explore their exact role in MS development and utility as biomarkers.

Biomedicines published new progress about Autoimmune disease (inflammatory). 3458-28-4 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H12O6, Category: alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Lu, Jike; Li, Jingjing; Jin, Ruichong; Li, Shufang; Yi, Juanjuan; Huang, Jinyong published the artcile< Extraction and characterization of pectin from Premna microphylla Turcz leaves>, Category: alcohols-buliding-blocks, the main research area is Premna leaf pectin response surface methodol microwave pretreatment; Characterization; Pectin; Premna microphylla Turcz leaves.

N this work, response surface methodol. (RSM) and microwave pretreatment were used to extract pectin from Premna microphylla Turcz leaves (PMTL). The process variables were optimized by the isovariant central composite design to improve the pectin extraction yield. The optimum conditions obtained were as follows, extraction time 2 h, temperature 90 °C, pH 2 and liquid-solid (LS) ratio 50 mL/g. The extraction yield was 18.25% under these conditions, which was close to the predicted value (17.60%). Then the pectin was characterized by gas chromatog. (GC), spectrophotometric (UV-visible Spectroscopy) and spectroscopic (Fourier transform IR) methods. The galacturonic acid content was 82.75%, and on this basis, the other monosaccharide composition anal. illustrated that pectin from PMTL was also composed of rhamnose, arabinose, mannose, glucose and galactose in a ratio of 2.96:1.17:1.04:8.07:2.05. The pectin of PMTL had an esterification degree of 62.50% and it showed good antioxidant activity. Taken together, the pectin of PMTL could be used as potential additive in food industry.

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, Category: alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Molaei, Somayeh; Tamoradi, Taiebeh; Ghadermazi, Mohammad; Ghorbani-Choghamarani, Arash published the artcile< Highly Efficient Oxidative Coupling of Thiols and Oxidation of Sulfides in the Presence of MCM-41@Tryptophan-Cd and MCM-41@Tryptophan-Hg as Novel and Recoverable Nanocatalysts>, Application of C8H10OS, the main research area is thiol sulfide oxidative coupling silica tryptophan cadmium mercury nanocatalyst.

Abstract: Two heterogeneous catalysts, MCM-41@Tryptophan-Cd and MCM-41@Tryptophan-Hg, were synthesized by immobilization of Cd or Hg complexes on MCM-41 as novel, efficient, recoverable and stable nanocatalysts for Oxidation of sulfides to sulfoxides and oxidative coupling of thiols into their corresponding disulfides. These functionalized complexes were characterized by FT-IR spectroscopy, thermogravimetric anal. (TGA), powder X-ray diffraction (XRD) and N2 adsorption-desorption isotherms. The designed catalysts successfully oxidized a variety of sulfides and thiols with short reaction times in high to excellent yields at room temperature and recovered for several times without significant loss of their catalytic activity. Graphical Abstract: Synthesis of Cd and Hg tryptophan complexes immobilized on to surface of mesoporous MCM-41 under mild reaction conditions has been presented. After characterization of these catalysts, their catalytic activity has been investigated for the synthesis of sulfoxide and disulfides derivatives [Figure not available: see fulltext.].

Catalysis Letters published new progress about Adsorption. 699-12-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H10OS, Application of C8H10OS.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Dong, Yue; Sui, Mingrui; Wang, Xin; Zhang, Peng; Jiang, Yiying; Wu, Jianyu published the artcile< Responses of electroactive biofilms to chronic chlorine exposure: Insights from the composition and spatial structure of extracellular polymeric substances>, Product Details of C6H12O6, the main research area is chlorine extracellular polymeric substance disinfection electroactive biofilm; Chronic chlorine exposure; Electroactive biofilms (EABs); Electron exchange capacities; Extracellular polymeric substances (EPS); Pollutant degradation.

Extensive amounts of chlorine disinfectants have been applied to wastewater system since the outbreak of coronavirus disease 2019 (COVID-19), which inevitably affects the pollutant degradation via interfering with electron transfer mediated by electroactive bacteria. Herein, the response of electroactive biofilm (EAB) to chronic chlorine exposure was investigated. Results showed the EAB formed without exposure (EAB-0) exhibited a 53% and 123% higher current output than that formed with 0.1 mg L-1 (EAB-0.1) and 0.5 mg L-1 (EAB-0.5) chlorine, resp. The chronic chlorine exposure of EAB boosted the contents of extracellular polymeric substances (EPS) in EAB-0.1 and EAB-0.5 by over secretion of extracellular polysaccharides. The EAB-0.1 and EAB-0.5 also presented lower electron exchange capacities (EECs) of EPS, coincided with reduced relative abundance of Geobacter from 61% in EAB-0 to 52% in EAB-0.5. This study provided new insights into the application of engineered EAB for wastewater treatment in a disinfection environment.

Bioelectrochemistry published new progress about Acinetobacter. 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

Nikoorazm, Mohsen; Erfani, Zahra published the artcile< Fe3O4@MCM-41@Zn-Arg: as a novel, magnetically recoverable and ecofriendly nanocatalyst for the synthesis of disulfides, sulfoxides and 2,3-dihydroquinazolin-4(1H)-ones>, COA of Formula: C8H10OS, the main research area is disulfide sulfoxide dihydroquinazolinone green preparation zinc arginine complex catalyst.

The direct supporting of Zn-arginine complex on magnetic core-shell nanostructures (Fe3O4@MCM-41@Zn-Arg) was reported as a novel, heterogeneous and excellent nanocatalyst, which was applied for the oxidation reaction of sulfides to sulfoxides, oxidative coupling of thiols to their corresponding disulfides and the synthesis of 2,3-dihydroquinazolin-4(1H)-one derivatives under mild conditions. The simple exptl. procedure, very good catalytic activity, low cost, and excellent recycling are the noteworthy features of the currently employed heterogeneous catalytic system.

Inorganic and Nano-Metal Chemistry published new progress about Aryl aldehydes Role: RCT (Reactant), RACT (Reactant or Reagent). 699-12-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H10OS, COA of Formula: C8H10OS.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Kotena, Zahrabatoul Mosapour; Fattahi, Alireza published the artcile< Computational insight into networking H-bonds in open and cyclic forms of glucose>, Reference of 492-62-6, the main research area is glucose open cyclic form hydrogen bond acidity stabilization energy.

We have studied the intramol. H-bonds existing in cyclic and open forms of glucose using B3LYP/6-311++G(d,p) level, AIM, and NBO methods. The theor. results indicated that based on acidity values, (ΔHacid), glucose in the open form is more acidic than cyclic form. The acidity values for open and cyclic glucose (332 and 338 kcal/mol) exhibit significantly lower values (i.e., stronger acid) than the reported acidity values for α-/ss-anomers of D-glucopyranose and simple alcs. Because their conjugate bases are more stabilized through trifurcated and bifurcated intramol. H-bonds. AIM anal. showed normal H-bonds in the conjugate bases of open glucose (O-Glc), bifurcated, and normal H-bonds in the conjugate base of cyclic glucose. In the conjugate base of glucose, the O-H···O bonds are categorized as mostly electrostatic and strong, whereas multiple interactions including C-H···O, C-H···H-C (dihydrogen bonding), C-H···C-H, and C=O···H are categorized as weak H-bonds. The NBO results confirm that the O-H···O intramol. H-bonds should be the strongest among all H-bonds existing within glucose.

Journal of Physical Organic Chemistry published new progress about Acidity. 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

Xu, Yanqun; Tong, Zhichao; Zhang, Xing; Wang, Youyong; Fang, Weiguo; Li, Li; Luo, Zisheng published the artcile< Unveiling the Mechanisms for the Plant Volatile Organic Compound Linalool To Control Gray Mold on Strawberry Fruits>, Application of C10H18O, the main research area is linalool Botrytis gray mold strawberry volatile substance mitochondrial disfunction; ATP production; linalool; mitochondrial membranes; oxidative stress; strawberry; volatiles.

Fungal infections significantly alter the emissions of volatile organic compounds (VOCs) by plants, but the mechanisms for VOCs affecting fungal infections of plants remain largely unknown. Here, we found that infection by Botrytis cinerea upregulated linalool production by strawberries and fumigation with linalool was able to inhibit the infection of fruits by the fungus. Linalool treatment downregulated the expression of rate-limiting enzymes in the ergosterol biosynthesis pathway, and this reduced the ergosterol content in the fungi cell membrane and impaired membrane integrity. Linalool treatment also caused damage to mitochondrial membranes by collapsing mitochondrial membrane potential and also downregulated genes involved in ATP production, resulting in a significant decrease in the ATP content. Linalool treatment increased the levels of reactive oxygen species (ROS), in response to which the treated fungal cells produced more of the ROS scavenger pyruvate. RNA-Seq and proteomic anal. data showed that linalool treatment slowed the rates of transcription and translation.

Journal of Agricultural and Food Chemistry published new progress about Botrytis cinerea. 78-70-6 belongs to class alcohols-buliding-blocks, and the molecular formula is C10H18O, Application of C10H18O.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts