Tag: M.W=150-200

Su, Yue; Li, Liang published the artcile< Structural characterization and antioxidant activity of polysaccharide from four auriculariales>, Electric Literature of 3458-28-4, the main research area is Auricularia natural antioxidant fucose mannose galactose polysaccharide; Antioxidant activity; Auricularia polysaccharides; Structural characterization.

The structural characterization and antioxidant activity of four Auricularia polysaccharides (A. cornea (ACP), A. auricula (AAP), A. polytricha (APP) and M.fungus (MFP)) were studied in this paper. The results shown: polysaccharides of four Auricularia were mainly composed of mannose and galactose, all polysaccharides contained uronic acid and pyran ring structure with spectroscopy and NMR anal. There was a significant difference in the total antioxidant capacity and APP was significantly higher than the other polysaccharides. The ability of APP to scavenge DPPH radicals and hydroxyl radicals was significantly higher than that of other polysaccharides, resp. The mol. weight was significantly pos. correlated with DPPH radicals, superoxide anion radicals and hydroxyl radicals. Total antioxidant capacity was significantly neg. correlated with fucose and galactose. The result indicated that fucose and galactose jointly determine total antioxidant capacity. The polysaccharide from four Auricularia had good oxidation resistance and could be used as natural antioxidants.

Carbohydrate Polymers published new progress about Auricularia auricula-judae. 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

Hollander, Amit; Yaron, Sima published the artcile< Pore-forming treatments induce aggregation of Salmonella Senftenberg through protein leakage>, Computed Properties of 78-70-6, the main research area is Salmonella senftenberg protein pore treatment aggregation; Aggregation; Antimicrobials; Food safety; Membrane damage; Salmonella.

Fresh herbs are not commonly associated with foodborne pathogens, due to the production of essential oils with antimicrobial activity. Recalls of contaminated basil, and basil outbreaks caused by Salmonella motivated studies aimed to comprehend the antimicrobial activity of basil essential oils, and to explore the mechanisms in which Salmonella can overcome them. Linalool, a major constituent of basil oil, increases the permeability of Salmonella Senftenberg cells by damaging their membrane. Linalool also induces bacterial aggregation. We hypothesized that the membrane perforation effect triggers cell aggregation through leakage of intracellular substances from live and dead cells. By exposing S. Senftenberg to addnl. phys. (sonication) or chem. (eugenol, Triton-X-100) treatments, we showed that the aggregation is caused by various membrane-targeted treatments. Enzymic degradation of leaked proteins restricted the bacterial aggregation, and disassembled existing aggregates. Moreover, supplemented proteins such as bacterial intracellular proteins or BSA also caused aggregation, further supporting the hypothesis that non-specific proteins trigger the bacterial aggregation. This study provides a novel understanding of the role of protein leakage in promoting bacterial aggregation. Since aggregation has significant roles in food safety and microbial ecol., this finding may establish future studies about microbial resistance via formation of clusters similar to biofilm development.

Food Microbiology published new progress about Aggregation. 78-70-6 belongs to class alcohols-buliding-blocks, and the molecular formula is C10H18O, Computed Properties of 78-70-6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Safaiee, Maliheh; Moeinimehr, Mahtab; Zolfigol, Mohammad Ali published the artcile< Pyridiniumporphyrazinato oxo-vanadium tribromomethanide as a new source of Br+ catalyst for the chemo and homoselective oxidation of sulfides and benzylic alcohols>, SDS of cas: 699-12-7, the main research area is pyridiniumporphyrazinato oxo vanadium tribromomethanide preparation catalyst chemoselective homoselective oxidation; sulfide benzylic alc oxidation catalyst pyridiniumporphyrazinato oxo vanadium tribromomethanide; sulfoxide benzaldehyde preparation.

The present study describes the design and synthesis of novel nano N-bromo porphyrazin (N-bromo tetra-2,3-pyridiniumporphyrazinato oxo-vanadium tribromomethanide [VO(TPPABr)] CBr3) as an efficient, recyclable and thermal stable heterogeneous catalyst for chemo and homoselective oxidation of sulfides to sulfoxides and benzyl alcs. to benzaldehydes. This ecofriendly heterogeneous catalyst was fully characterized by FT-IR spectra, UV-Vis spectra, x-ray diffraction (XRD), SEM (SEM), transmission electron microscopy (TEM), and thermal gravimetric anal. (TGA), energy-dispersive x-ray spectroscopy (EDX) and elemental anal. (CHN). The synthesized catalyst exhibited a high-performance and considerable reusability.

Polyhedron published new progress about Aralkyl alcohols Role: RCT (Reactant), RACT (Reactant or Reagent). 699-12-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H10OS, SDS of cas: 699-12-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Huang, Fei; Liu, Huijun; Zhang, Ruifen; Dong, Lihong; Liu, Lei; Ma, Yongxuan; Jia, Xuchao; Wang, Guangjin; Zhang, Mingwei published the artcile< Physicochemical properties and prebiotic activities of polysaccharides from longan pulp based on different extraction techniques>, Product Details of C6H12O6, the main research area is prebiotic polysaccharide longan extraction sugar viscosity solubility; Different extraction methods; Glycosidic linkage; Longan polysaccharides; Probiotic proliferation.

Longan pulp polysaccharides were extracted with hot water (LP-H), superfine grinding (LP-S) and superfine grinding-assisted enzymic treatments (LP-SE). The yields, physicochem. properties and prebiotic activities of polysaccharides were investigated. Compared with LP-H and LP-S, the yield, sugar content, solubility, arabinose and mannose percentage of LP-SE increased while its apparent viscosity, particle size, Mw and glucose percentage declined. Three LPs contained similar glycosidic linkage of →3)-α-L-Araf-(1→, →3,6)-β-D-Galp-(1→ and α-L-Rhap(l→, while they each contained specific glycosidic linkage of →4)-β-D-Glcp(l→, →4)-β-D-Galp-(1→ and →5)-α-L-Araf-(1→ in LP-H, LP-S and LP-SE, resp. Moreover, LP-SE exhibited stronger stimulation than LP-H and LP-S on the proliferation of Lactobacillus plantarum, Lactobacillus bulgaricus, Lactobacillus fermentum and Leuconostoc mesenteroides. The results indicated three extraction methods had some effect on chem. composition and structure of polysaccharide. LP-SE extracted by superfine grinding-assisted enzymic treatment exhibited the highest prebiotic activities, which have a great potential in applying in functional food and medical industry.

Carbohydrate Polymers published new progress about Carbohydrates Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 3458-28-4 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H12O6, Product Details of C6H12O6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Hu, Zhengyu; Zhou, Hongli; Li, Yaping; Wu, Meifu; Yu, Ming; Sun, Xinshun published the artcile< Optimized purification process of polysaccharides from Carex meyeriana Kunth by macroporous resin, its characterization and immunomodulatory activity>, Electric Literature of 3458-28-4, the main research area is Carex polysaccharide macroporous resin purification immunomodulation; Carex meyeriana Kunth; Polysaccharides; Purification.

The anal. hierarchy process (AHP) combined with response surface methodol. (RSM) was used to optimize the purification conditions of crude polysaccharides from Carex meyeriana Kunth (CMKP) by macroporous resin. The optimal purification conditions as follows: elution volume of 2.74 BV, flow rate of 1.88 BV/h, and sample concentration of 2.10 mg/mL. Under the optimal conditions, the purification comprehensive score was 63.59 ± 1.56% (n = 3), which was agreed closely to the predicted value (64.02%). Two fractions of polysaccharides (CMKP-1 and CMKP-2) were obtained using a DEAE-52 column. Fourier Transform IR (FTIR) spectroscopy spectra revealed the general characteristic absorption peaks of CMKP-1 and CMKP-2. Congo-red test indicated that CMKP-1 and CMKP-2 have triple helix conformation. CMKP-1 and CMKP-2 were both composed of Man, Rib, Rha, GluA, GalA, Glu, Gal, Xyl, Ara and Fuc in a molar ratio of 8.93:1:4.62:1.41:1.78:10.7:24.69:4.51:15.92:1.27 and 7.85:1:5.05:1.99:3.15:12.47:15.41:1.54:6.91:3.15, resp. The major mol. weight of CMKP-1 and CMKP-2 was 22.30 kDa and 48.10 kDa, resp. Moreover, CMKP-1 and CMKP-2 had immunostimulatory effects on RAW264.7 cells in a certain concentration range. It could be used as potential immunomodulatory agents in medicine or functional food fields.

International Journal of Biological Macromolecules published new progress about Carex meyeriana. 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

Chen, Yueting; Weng, Yuanyuan; Zhou, Min; Meng, Yiyu; Liu, Jialu; Yang, Lin; Zuo, Zhaojiang published the artcile< Linalool- and α-terpineol-induced programmed cell death in Chlamydomonas reinhardtii>, SDS of cas: 78-70-6, the main research area is Chlamydomonas programmed cell death linalool alpha terpineol algaecide; Algaecide; Chlamydomonas reinhardtii; Linalool; Programmed cell death; α-Terpineol.

Plant allelochems. effectively inhibit and/ or control algal growth, and have potential to use as algaecide. To uncover the lethal mechanism of 2 anti-algal compounds linalool and α-terpineol identified from Cinnamomum camphora extracts, and promote their development as algaecide, the H2O2 production, photosynthetic abilities, H2O2 content burst in linalool treatment at 0.5 h and in α-terpineol treatment at 1 h, with increases of 2.7 folds and 1.3 folds, resp., compared to that at 0 h. The photosynthetic pigments gradually degraded, and Fv/Fm gradually declined to zero, indicating that the cell death was not a necrosis due to the gradual disappearance of physiol. process. In C. reinhardtii cells, the caspase-9-like and caspase-3-like were activated in the treatments with the 2 compounds for 1 h. With prolonging the treatment time, the fluorescent intensity of the cell nucleuses stained by DAPI gradually enhanced and then faded, and the genomic DNA isolated from the cells gradually degraded. These hallmarks indicated that the death of C. reinhardtii cells in linalool and α-terpineol treatments was a (PCD) triggered by the increased reactive oxygen species (ROS). Compared to α-terpineol treatment, linalool treatment showed stronger promoting effects on PCD at the same time point, which may be caused by the higher ROS content inducing higher caspase-9-like and caspase-3-like activities in a short time.

Ecotoxicology and Environmental Safety published new progress about Algicides. 78-70-6 belongs to class alcohols-buliding-blocks, and the molecular formula is C10H18O, SDS of cas: 78-70-6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Nikoorazm, Mohsen; Moradi, Parisa; Noori, Nourolah; Azadi, Gouhar published the artcile< L-Arginine complex of copper on modified core-shell magnetic nanoparticles as reusable and organic-inorganic hybrid nanocatalyst for the chemoselective oxidation of organosulfur compounds>, Synthetic Route of 699-12-7, the main research area is arginine copper complex magnetic nanocatalyst preparation crystallinity; organosulfur compound chemoselective oxidation; sulfoxide green preparation.

The fabrication and characterization of a stable heterogeneous nanostructure catalyst of copper immobilized on Fe3O4@SiO2@L-Arginine, for the oxidation of sulfides and oxidative coupling of thiols was reported. The prepared nanocatalyst was characterized by different techniques such as FTIR, XRD, SEM, TEM and TGA. These nanoparticles were the effective catalyst for selective oxidation of sulfides and oxidative coupling of thiols using 30% H2O2. The suggested method offered several prominent advantages such as mild condition, use of magnetically reusable catalyst, simple workup procedure, good to high yields of products and great selectivity.

Journal of the Iranian Chemical Society published new progress about Crystallinity. 699-12-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H10OS, Synthetic Route of 699-12-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Mirfakhraei, Saeideh; Hekmati, Malak; Eshbala, Fereshteh Hosseini; Veisi, Hojat published the artcile< Fe3O4/PEG-SO3H as a heterogeneous and magnetically-recyclable nanocatalyst for the oxidation of sulfides to sulfones or sulfoxides>, Electric Literature of 699-12-7, the main research area is sulfide oxidation; sulfoxide preparation; sulfone preparation; magnetite sulfonated oxidation nanocatalyst.

A sulfonated-polyethylene glycol-coated Fe3O4 nanocomposite (Fe3O4/PEG-SO3H) as a greatly effective and ecol. nanocatalyst for the selective oxidation of sulfides to sulfoxides or sulfones with high yields under solvent-free conditions by employing 30% hydrogen peroxide as the oxidant, is presented. A number of sulfides containing alc., ester, and aldehyde functional groups were effectively and selectively oxidized without altering the desired characteristics. The magnetic nanocatalyst (Fe3O4/PEG-SO3H) can be conveniently and swiftly retrieved through the utilization of an external magnetic tool and recycled for more than 10 reaction runs without significantly decreasing its catalytic behavior.

New Journal of Chemistry published new progress about Nanocatalysts. 699-12-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H10OS, Electric Literature of 699-12-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Tamoradi, Taiebeh; Ghadermazi, Mohammad; Ghorbani-Choghamarani, Arash; Molaei, Somayeh published the artcile< Synthesis and characterization of oxo-vanadium complex anchored onto SBA-15 as a green, novel and reusable nanocatalyst for the oxidation of sulfides and oxidative coupling of thiols>, Quality Control of 699-12-7, the main research area is SBA15 vanadium complex oxidation oxidative coupling catalyst.

The present work describes the synthesis of a new oxo-vanadium complex immobilized on SBA-15 nanostructure as an efficient catalyst for oxidation of sulfides and oxidative coupling of thiols. Characterization of the resultant AMPD@SBA-15 nanostructure was performed by various physico-chem. techniques such as Fourier transform IR spectroscopy, transmission and scanning electron microscopies, energy-dispersive X-ray spectroscopy, inductively coupled plasma optical emission spectroscopy, X-ray diffraction, thermal gravimetric anal., and N2 adsorption and desorption. The results of the developed procedure bring several benefits such as the use of com. available, ecol. benign, operational simplicity, and cheap and chem. inert reagents. It shows good reaction times, practicability and high efficiency, and is easily recovered from the reaction mixture by simple filtration and reused for several consecutive cycles without noticeable change in its catalytic activity. More importantly, high efficiency, simple and an inexpensive procedure, com. available materials, easy separation, and an eco-friendly procedure are the several advantages of the currently employed heterogeneous catalytic system. Graphical Abstract: [Figure not available: see fulltext.].

Research on Chemical Intermediates published new progress about Oxidation catalysts. 699-12-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H10OS, Quality Control of 699-12-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Chenavas, Sophie; Fiorini-Puybaret, Christel; Joulia, Philippe; Larrouquet, Camille; Waton, Hugues; Martinez, Agathe; Casabianca, Herve; Fabre, Bernard published the artcile< New formylated phloroglucinol compounds from Eucalyptus globulus foliage>, Related Products of 4396-13-8, the main research area is Eucalyptus formylated phloroglucinol compound acylphloroglucinol.

Two new acylphloroglucinols were isolated from the leaves of Eucalyptus globulus Labill and identified as macrocarpals P (1) and Q (2). Structural elucidations were carried out using conventional 1D and 2D NMR and mass spectrometry together with complementary techniques (UV and IR). Macrocarpal Q was a diastereoisomer of macrocarpal E (3), configuration of which was not precised. Simultaneous isolation of macrocarpals E and Q allowed to determine the configurations of both compounds The diformylphloroglucinol (4) was also isolated as well as already known compounds grandinol, macrocarpals D, I, L, N, O and am-1.

Phytochemistry Letters published new progress about Eucalyptus globulus. 4396-13-8 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H6O5, Related Products of 4396-13-8.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts