Tag: M.W=150-200

An, Qi published the artcileStructure analysis of polysaccharides purified from Cyclocarya paliurus with DEAE-Cellulose and its antioxidant activity in RAW264.7 cells, Application In Synthesis of 59-23-4, the main research area is Cyclocarya polysaccharide CPPD macrophage cell viability antioxidant; Antioxidant; Cyclocarya paliurus; Polysaccharide; Structural analysis.

CPP was isolated from Cyclocarya paliurus (C. paliurus) and CPP-D was purified from CPP with a further step by DEAE-Cellulose. In this study, the structure and antioxidant activities of these two polysaccharides were investigated. The mol. weight of CPP was determined as 1.15 × 105 Da and the monosaccharides of it were Rha, Ara, Xyl, Man, Glc, Gal in a molar ratio of 0.021:0.237:0.020:0.036:0.454:0.231, while the mol. weight of CPP-D was 9.1 × 103 Da and the monosaccharides of it were Man, Glc, Gal in a molar ratio of 0.235:0.677:0.088. CPP-D consisted of three structural residues â†?- β-D-Glc-(1â†? â†?,6)- β-D-Man-(1â†?and â†?)- β-D-Gal. These structures were characterized by SEM, FT-IR, GC-MS, HPGPC, and NMR. The antioxidant assay in RAW264.7 cell showed that both CPP and CPP-D promoted cell viability and antioxidant activity, which decreased the content of MDA and increased the activity of SOD, T-AOC, CAT (P < .05). As a result, CPP-D isolated by DEAE-Cellulose didn't reduce the antioxidant activity of C. paliurus polysaccharide and could enhance the cell viability. International Journal of Biological Macromolecules published new progress about Antioxidants. 59-23-4 belongs to class alcohols-buliding-blocks, name is (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, and the molecular formula is C6H12O6, Application In Synthesis of 59-23-4.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Chen, Yue published the artcileUltrasound-assisted modified pectin from unripe fruit pomace of raspberry (Rubus chingii Hu): Structural characterization and antioxidant activities, Name: (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, the main research area is Rubus antioxidant pectin fruit pomace.

With the aim of making full use of the resource of Rubus Chingii Hu, this work comparatively investigated the structural characterization and antioxidant activities of pectin (RP) from unripe fruit pomaces of Rubus chingii Hu and ultrasonic-modified pectin (URP) from unripe fruit pomaces of Rubus Chingii Hu. Compared with the original RP, ultrasound treated RP (URP) significantly changed the chem. composition The SEM (SEM) results suggested that the conformation of RP was filiform, smooth and slim and a large number of spherical pectins were produced by ultrasonic modification. Both RP and URP exhibited the potential antioxidant activity and α-glucosidase inhibitory activity. Moreover, RP and URP effectively attenuated the oxidative damage induced by H2O2 and reduced intracellular reactive oxygen species (ROS) levels in human hepatic L02 cells and URP showed higher activity than RP. These results suggested that the unripe fruit pomace of Rubus chingii Hu could be used as a potential resource to obtain the antioxidant pectin and the ultrasound-assisted modification could significantly change the phys. structure of pectin and effectively improve its antioxidant activities.

LWT–Food Science and Technology published new progress about Antioxidants. 59-23-4 belongs to class alcohols-buliding-blocks, name is (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, and the molecular formula is C6H12O6, Name: (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Duan, Guo-Liang published the artcileIsolation, purification, characterization, and antioxidant activity of low-molecular-weight polysaccharides from Sparassis latifolia, Computed Properties of 59-23-4, the main research area is Sparassis low mol weight polysaccharide antioxidant; Antioxidant activity; Isolation; Polysaccharide; Sparassis latifolia; Structure-function relationship.

Six polysaccharides (SF-FB11, SF-HW21, SF-CA31, SF-HA41, SF-FF51, and SF-FR61) of similar mol. weights (MW) (30-50 kDa) were extracted from the fermentation liquor, mycelia, and basidiomata of Sparassis latifolia by different methods. Structural analyses of these purified polysaccharides indicated that they were all branched, with a degree of branching (DB) ranging from 0.2 to 0.4. The polysaccharides exhibited strong scavenging activities for 2,2-diphenyl-1-picrylhydrazyl and hydroxyl radicals. Their antioxidant activities were correlated to some extent with their composition but significantly with the DB. The polysaccharides with a low 1,3-D-glucose content and glucose: galactose ratio, or a low DB (0.2-0.3) had higher antioxidant activities. Addnl., the correlation between the extraction yield and antioxidant activities of the polysaccharides was assessed. The low-MW polysaccharides extracted by alkali treatments had both high yield and antioxidant activities. Addnl., both the yield and antioxidant activities were found to be influenced by the size, extraction method, and source (fermentation liquor, mycelia, or basidiomata) of the polysaccharides. These results indicate that polysaccharides isolated from S. latifolia have strong antioxidant activities closely associated with the polysaccharide structure and extraction method, thus providing a scientific basis for further use of these polysaccharides.

International Journal of Biological Macromolecules published new progress about Antioxidants. 59-23-4 belongs to class alcohols-buliding-blocks, name is (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, and the molecular formula is C6H12O6, Computed Properties of 59-23-4.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Mohammed, Jalaleldeen Khaleel published the artcilePreparation, deproteinization, characterization, and antioxidant activity of polysaccharide from Medemia argun fruit, Application In Synthesis of 59-23-4, the main research area is Medemia fruit polysaccharide deproteinization antioxidant; Antioxidant activity; Deproteinization; Structural characterization.

In this study, the crude polysaccharide from argun palm (Medemia argun) fruit was extracted with hot water and deproteinized by four different methods. Its structure characterization, thermal property and antioxidant activity were investigated by FT-IR spectroscopy, Scanning electron microscope, Congo-red, I2-KI, DPPHâ€?assay, ABTSâ€? assay, TGA and DSC anal. It indicated that the NaCl method was the best method in deproteinization. The argun fruit polysaccharide linked by the β-glycosidic bonds. The mol. weight of polysaccharide deproteinized with NaCl was 4.46 × 105 Da. It showed that the polysaccharide from argun palm fruit consisted of fructose, arabinose, rhamnose, galactose, glucose, xylose, and galacturonic acid. The result of TGA and DSC assay indicated that argun fruit polysaccharide has a favorable thermal stability. It was proved that, the argun fruit polysaccharide possessed high antioxidant activity and would be a new natural antioxidant.

International Journal of Biological Macromolecules published new progress about Antioxidants. 59-23-4 belongs to class alcohols-buliding-blocks, name is (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, and the molecular formula is C6H12O6, Application In Synthesis of 59-23-4.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Li, Yang published the artcileExtraction and biological activity of exopolysaccharide produced by Leuconostoc mesenteroides SN-8, COA of Formula: C6H12O6, the main research area is exopolysaccharide Leuconostoc antioxidant activity; Bioactivity; Extracellular polysaccharide; Leuconostoc mesenteroides; Structure.

An exopolysaccharide (EPS)-producing strain SN-8 isolated from Dajiang was identified as Leuconostoc mesenteroides. When sucrose was used as the carbon source for fermentation, the output of EPS was 2.42 g/L. High performance liquid chromatog. anal. confirmed the presence of monomers such as glucan and mannose. The mol. weight detection value is 2.0 x 105 Da. Fourier transform IR spectroscopy displayed the EPS had the basic skeleton and functional groups of a typical polysaccharide structure. SEM showed smooth surfaces and compact structure. Thermal performance anal. showed that the highest heat resistance temperature of the EPS was 80°C. Compared with vitamin C, its hydroxyl radical scavenging rate was as high as 32% and 1,1-diphenyl-2-picrylhydrazyl scavenging rate was as high as 40% under the same concentration The peanut oil was the most emulsifiable at a concentration of 1.5 mg/mL, and the emulsification index was 0.55. These results might show that the EPS had high application value.

International Journal of Biological Macromolecules published new progress about Antioxidants. 59-23-4 belongs to class alcohols-buliding-blocks, name is (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, and the molecular formula is C6H12O6, COA of Formula: C6H12O6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Vergine, Marzia published the artcilePhytochemical profiles and antioxidant activity of Salvia species from Southern Italy, Computed Properties of 124-76-5, the main research area is Salvia phytochem antioxidant Southern Italy.

The purpose of this research was to investigate phytochem. profiles and antioxidant activity in four Salvia species growing in Salento (Southern Italy). The hydrodistillation products obtained from the aerial parts of Salvia clandestina, Salvia fruticosa, Salvia officinalis and Salvia sclarea were characterized by GC-MS and 50 compounds were detected. With the exception of S. clandestina, that did not produce essential oils, the other species shared different amounts of monoterpenes oxygenated (camphor 2.13%-9.16%) and sesquiterpenes hydrocarbons (caryophyllene 4.65%-18.33%; humulene 1.87%-12.39%). The phenolic profiling, analyzed by HPLC ESI/MS-TOF, highlights that S. clandestina is a rich source of danshensu (4.76 mg/g DW) while S. sclarea of rosmarinic acid (15.57 mg/g DW). Mutivariate statistical anal. (PCA) of hitherto studied Salvia phenols have shown similarities in profiles between S. fruticosa and S. officinalis, while S. clandestina and S. sclarea showed distinctive profiles. Otherwise, essential oil profiles analyzed by PCA are clearly different among the three productive species. The extracts from collected plants were found to be effective antioxidant in three different in vitro assays (DPPH, ABTS, FRAP and Superoxide anion scavenging activity). Thus, they can be proposed as natural ingredients in functional foods, herbal medicines or as sources of bioactive mols.

Records of Natural Products published new progress about Antioxidants. 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, Computed Properties of 124-76-5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Lu, Jike published the artcileExtraction 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. 59-23-4 belongs to class alcohols-buliding-blocks, name is (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, and the molecular formula is C6H12O6, Category: alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Amamou, Sawsen published the artcileEffect of extraction condition on the antioxidant, antiglycation and α-amylase inhibitory activities of Opuntia macrorhiza fruit peels polysaccharides, Synthetic Route of 59-23-4, the main research area is Opuntia fruit peel polysaccharide antioxidant antiglycation alpha amylase.

In this study, the effect of acidic, neutral and alk. medium extraction of polysaccharides from Opuntia macrorhiza fruit peels was evaluated. The extraction yields ranged from 6.8 to 13.7%, and the highest content in uronic acid was observed in the acidic extract (50.5%). Likewise, Fourier transform IR (FT-IR) spectroscopy showed the presence of uronic acids in the Me ester and free forms, with a degree of esterification of 46.9, 39.3 and 48.3% for the acidic, neutral and alk. extracts Monosaccharide composition showed that the extracted polysaccharides were principally composed of arabinose, rhamnose, galactose and glucose, with an average mol. weight of 208,000, 1460,000 and 1380,000 g/mol, resp. Therefore, this finding indicates that extracts are a low methoxyl pectic polysaccharides. Finally, all polysaccharides exhibited good antioxidant activity, especially acid extract significantly inhibits lipid peroxidation and in vitro protein glycation in BSA-glucose glycation model and alk. extract inhibits α-amylase with a competitive type.

LWT–Food Science and Technology published new progress about Antioxidants. 59-23-4 belongs to class alcohols-buliding-blocks, name is (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, and the molecular formula is C6H12O6, Synthetic Route of 59-23-4.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Jia, Yanan published the artcileCharacterization, antioxidant activities, and inhibition on α-glucosidase activity of corn silk polysaccharides obtained by different extraction methods, Related Products of alcohols-buliding-blocks, the main research area is review alpha glucosidase antioxidant polysaccharides extraction; Corn silk; Extraction method; Polysaccharide.

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. 59-23-4 belongs to class alcohols-buliding-blocks, name is (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, and the molecular formula is C6H12O6, Related Products of alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Yuan, Biao published the artcileIdentification and characterization of antioxidant and immune-stimulatory polysaccharides in flaxseed hull, Formula: C6H12O6, the main research area is antioxidant polysaccharide flaxseed; Flaxseed; Immune-enhancing; MAPK; Polysaccharide.

Flaxseeds are widely consumed for their desirable sensory attributes and health benefits. We focused on enhancing the sustainability and economic potential of flaxseeds by characterizing functional attributes of polysaccharides isolated from flaxseed hull residues. In particular, antioxidant and immune-stimulatory polysaccharides were isolated and purified from flaxseed hull. IR spectroscopy was used to identify the key functional groups. The polysaccharides were composed of mannose, rhamnose, galactose, glucose, galactose, xylose, arabinose, and fucose. In vitro studies showed certain flaxseed hull polysaccharide fractions exhibited strong antioxidant activities, increased nitric oxide levels, and enhanced the production of cytokines (TNF-α and IL-6). In the presence of 200μg/mL of one of these fractions, the levels of p-ERK, p-JNK, and p-p38 increased significantly by 1.8-, 9.0-, and 6.7-fold. These polysaccharide fractions may exhibit their immune-regulatory properties partly by modulating the MAPK pathway. The flaxseed hull polysaccharides identified have potential application as natural antioxidants and immune-enhancing nutraceuticals.

Food Chemistry published new progress about Antioxidants. 59-23-4 belongs to class alcohols-buliding-blocks, name is (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, and the molecular formula is C6H12O6, Formula: C6H12O6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts