Category: alcohols-buliding-blocks

Kucharska, Jarmila published the artcileTreatment with coenzyme Q10, ω-3-polyunsaturated fatty acids and their combination improved bioenergetics and levels of coenzyme Q9 and Q10 in skeletal muscle mitochondria in experimental model of arthritis, SDS of cas: 97-67-6, the main research area is COQ10 omega3PUFA antiarthritic agent mitochondrial bioenergetics adjuvant arthritis.

Rheumatoid arthritis (RA) and its animal model adjuvant arthritis (AA) are inflammatory diseases characterized by chronic inflammation, systemic oxidative stress and disturbed mitochondrial bioenergetics of skeletal muscle. The present study aimed to evaluate the effects of coenzyme Q10 – CoQ10 (100 mg/kg b.w.), omega-3-polyunsaturated fatty acids – ω-3-PUFA (400 mg/kg b.w.) and their combined treatment in AA on impaired skeletal muscle mitochondrial bioenergetics, inflammation and changes in levels CoQ9 and CoQ10 in plasma. Markers of inflammation (C-reactive protein, monocytechemotactic protein-1), antioxidant capacity of plasma, respiratory chain parameters of skeletal muscle mitochondria and concentrations of CoQ9 and CoQ10 in plasma and in muscle tissue were estimated Treatment of the arthritic rats with CoQ10, ω-3-PUFA alone and in combination partially reduced markers of inflammation and increased antioxidant capacity of plasma, significantly increased concentrations of coenzyme Q in mitochondria and improved mitochondrial function in the skeletal muscle. Combined treatment has similar effect on the mitochondrial function as monotherapies; however, it has affected inflammation and antioxidant status more intensively than monotherapies. Long-term supplementary administration of coenzyme Q10 and ω-3-PUFA and especially their combination is able to restore the impaired mitochondrial bioenergetics and antioxidant status in AA.

Physiological Research (Prague, Czech Republic) published new progress about Adjuvant arthritis. 97-67-6 belongs to class alcohols-buliding-blocks, name is (S)-2-hydroxysuccinic acid, and the molecular formula is C4H6O5, SDS of cas: 97-67-6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Acosta Ortiz, Ricardo published the artcileTensile strength and fracture mode I toughness of photocurable carbon fiber/polyether-polythioether composites, Computed Properties of 7575-23-7, the main research area is carbon fiber polyether polythioether composite tensile strength fracture toughness.

This paper reports the development of a novel photocurable carbon fiber/polyether-polythioether (TF CFEC) composite and the comparison of its mech. performance with that of a conventional thermally cured carbon fiber-epoxi composite (CTC CFEC). Unidirectional carbon fiber (CF) was used as the reinforcement agent in both composites. In the case of the TF CFEC, the CF employed was surface-functionalized with thiol groups to promote chem. bonding to the polyether-polythioether matrix derived from the epoxy/thiol-ene system. This was achieved by means of a transesterification reaction of (3-mercaptopropyl) trimethoxysilane (MPTS) with the hydroxyl groups produced on the surface of the CF after an oxidative plasma treatment. Mech. testing revealed that although TF CFEC displayed slightly lower mech. properties than CTC CFEC, it exhibited 50% higher fracture toughness. This difference in behavior was explained by the difference in the chem. nature of both polymeric matrixes, where a highly crosslinked poly(hydroxyl-amine) is produced in the case of CTC CFEC, while a polyether-polythioether matrix with inherent toughness due to the flexibility of polythioethers, is obtained during the photo-thermal treatment to obtain TF CFEC. Considering that TF CFEC was cured in only 1h at 40 mW/cm2 of UV intensity and 85°C, and the CTC CFEC was cured at room temperature for 4h, followed by heating at 100°C for 4h, there is considerable energy savings in the production of the photocurable composite. The result is a cost-effective process that could have potential applications in the automotive and aerospace industries.

Journal of Polymer Research published new progress about Aerospace industry. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, Computed Properties of 7575-23-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Borde, B. published the artcileA DSC study of hydrated sugar alcohols: isomalt, SDS of cas: 64519-82-0, the main research area is isomalt dehydration melting structural relaxation glass transition.

A DSC study was carried out on isomalt, a com. sugar alc. derived from sucrose and widely used as a sweetener in the food industry. Isomalt is a mixture of two isomers: α-D-glucopyranosyl-1-6-mannitol and α-D-glucopyranosyl-1-6-sorbitol. Release of the water of crystallization (around 100°C) and melting (around 150°C) were phenomenol. characterized using different scanning rates and heat treatments. The effect of dehydration/re-hydration on the melting was investigated. The isomalt glass transition, at about 60°C, was studied on samples cooled after melting. The dynamic aspect of structural relaxation of isomalt was quantified by its fragility parameter. Glassy state stability was evaluated by performing ageing experiments at sub-Tg temperatures During ageing, apart from the expected enthalpy relaxation effects, isomalt showed a peculiar behavior, due to its isomeric composition These preliminary and phenomenol. results were interpreted in terms of isomer structure and of carbohydrate-water interactions in the mixture

Journal of Thermal Analysis and Calorimetry published new progress about Aging of materials. 64519-82-0 belongs to class alcohols-buliding-blocks, name is (3R,4R,5R)-6-(((2S,3R,4S,5S,6R)-3,4,5-Trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)hexane-1,2,3,4,5-pentaol, and the molecular formula is C12H24O11, SDS of cas: 64519-82-0.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Tu, Xinghao published the artcileEffects of four drying methods on Amomum villosum Lour. ′Guiyan1′ volatile organic compounds analyzed via headspace solid phase microextraction and gas chromatography-mass spectrometry coupled with OPLS-DA, Name: rel-(1R,2R,4R)-1,7,7-Trimethylbicyclo[2.2.1]heptan-2-ol, the main research area is Amomum volatile organic compound drying solid phase microextraction GCMS.

This paper analyzed the effects of four drying methods (heat pump drying, hot air drying, sun drying, and freeze drying) on the volatile organic compounds (VOCs) in fresh Guiyan1 Amomum villosum Lour. Via separation, component differentiation, and overall variance anal. via HS-SPME-GC/MS coupled with OPLS-DA, 133 kinds of VOCs, mainly composed of hydrocarbons, esters, and alcs., were identified. The differences in Guiyan1 processed by freeze-drying and the other three drying methods were the most significant and easily distinguishable. The main VOCs in the dried samples were bornyl acetate and 2-bornanone, with the largest increase in 2-bornanone and the largest decrease in bicyclogermacrene. The obtained data provided guidance for optimizing the processing and storage of Guiyan1.

RSC Advances published new progress about Air drying process. 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, Name: rel-(1R,2R,4R)-1,7,7-Trimethylbicyclo[2.2.1]heptan-2-ol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Yan, Jing-Kun published the artcileEffect of different drying methods on the product quality and bioactive polysaccharides of bitter gourd (Momordica charantia L.) slices, Category: alcohols-buliding-blocks, the main research area is drying polysaccharide bitter gourd antioxidant antidiabetic; Bioactivity; Bitter gourd (Momordica charantia L.); Drying method; Physicochemical property; Polysaccharide.

In this study, three drying methods, namely, hot-air drying, freeze drying (FD), and IR radiation drying (ID), were applied to dry bitter gourd (Momordica charantia L.) slices. Results showed that the drying methods had significant influences on appearance, color, rehydration ratio, and microstructure of dried bitter gourd. FD provided high-quality dried bitter gourd products due to the uniform honeycomb network and less collapsed structure. Three water-soluble bitter gourd polysaccharides (BPS-H, BPS-F, and BPS-I) were obtained from the bitter gourd dried using the three drying methods. The three polysaccharides exhibited similar preliminary structural characteristics with different monosaccharide compositions and mol. weights BPS-I obtained from ID-dried bitter gourd had higher sugar and uronic acid contents than BPS-H and BPS-F. BPS-I exhibited stronger antioxidant activities and bile acid-binding capacity in vitro than BPS-H and BPS-F. Moreover, BPS-F and BPS-I showed significant α-amylase inhibitory activities in vitro.

Food Chemistry published new progress about Air drying process. 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

Xu, Lei published the artcileEffects of high-temperature pre-drying on the quality of air-dried shiitake mushrooms (Lentinula edodes), Quality Control of 505-10-2, the main research area is Lentinula drying ketone aldehyde; Formaldehyde; High-temperature pre-drying; Shiitake mushroom.

We investigated the relationship between the pre-drying temperature and overall quality of dried shiitake mushrooms (Lentinula edodes). Results showed that high-temperature pre-drying significantly increased the rehydration ratio and hardness of dried shiitake mushrooms, but decreased the degree of shrinkage, degree of browning, and formaldehyde content. The levels of enzyme activity were high throughout the pre-drying process and benefitted the formation of flavoured substances. Furthermore, high-temperatures pre-drying also resulted in a higher content of sulfur compounds These results indicated that the pre-drying processing had significant impacts on the overall quality of dried shiitake mushrooms. This may pave the way for increasing the economic value of dried shiitake mushrooms.

Food Chemistry published new progress about Air drying process. 505-10-2 belongs to class alcohols-buliding-blocks, name is 3-(Methylthio)propan-1-ol, and the molecular formula is C4H10OS, Quality Control of 505-10-2.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Kazmierczak, Kamila published the artcileActivity of heterogeneous supported Cu and Ru catalysts in acceptor-less alcohol dehydrogenation, Application In Synthesis of 111-87-5, the main research area is copper ruthenium alc dehydrogenation catalyst.

Acceptor-less alc. dehydrogenation reaction allows the co-production of added-value carbonyl compounds and H2 from alcs. Focusing on supported Ru and Cu catalysts, we evaluated the support effect on the dehydrogenation of 2-octanol and 1-octanol and identified the side products as resulting from aldolisation coupling. The most active and selective catalysts were then tested on the aliphatic vicinal-diol octan-1,2-diol and the highest conversion was reached using Cu/ZrO2 (60%) with a high selectivity (94%) towards 1-hydroxy-2-octanone.

Catalysis Communications published new progress about Aldol condensation. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Application In Synthesis of 111-87-5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Kazmierczak, Kamila published the artcileSupported Cobalt Catalysts for Acceptorless Alcohol Dehydrogenation, Related Products of alcohols-buliding-blocks, the main research area is cobalt catalyst acceptorless alc dehydrogenation; TiO2; acceptorless alcohol dehydrogenation; cobalt; heterogeneous catalysis; supported catalysts.

The acceptor-less dehydrogenation of 2-octanol was tested over cobalt supported on Al2O3, C, ZnO, ZrO2 and various TiO2 substrates. The catalysts were characterized by ICP, XRD and TGA-H2. For Co/TiO2 P25, the effects of passivation, aging (storage at room temperature), and in situ activation under H2 were investigated. The catalysts must be tested shortly after synthesis in order to prevent deactivation. Cobalt supported on TiO2 P25 was the most active and 69% yield of 2-octanone was obtained, using decane as a solvent. Selectivities for 2-octanone were observed in the range of 90% to 99.9%. Small amounts of C16 compounds were also formed due to aldol condensation/dehydration reactions. The catalysts exhibited higher conversion in the dehydrogenation of secondary alcs. (65-69%), in comparison to primary alcs. (2-10%). The dehydrogenation of 1,2-octanediol led to 1-hydroxy-2-octanone, with a selectivity of 90% and 69% for Co/TiO2 P25 and Co/TiO2 P90, resp.

ChemPlusChem published new progress about Aldol condensation. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Related Products of alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Rozwalka, Luciane Cristina published the artcileChemical components of essential oils as a base to control two grape pathogens: Sphaceloma ampelinum and Pseudocercopora vitis, COA of Formula: C10H18O, the main research area is chem component essential oil Sphaceloma ampelinum Pseudocercopora vitis.

Anthracnose and grapevine leaf spot are the most important fungal diseases of fox grape in Brazil caused by Sphaceloma ampelinum and Pseudocercospora vitis, resp. Severe attacks of either diseases can affect the yield in the current and subsequent years. Synthetic fungicides are recommended to control these pathogens in the field but may be harmful to the environment and human health over time and select for fungicide-resistant pathogen populations. Among the new strategies for safe food production, free of pesticide residues, essential oils represent a promising tool to control plant pathogens. The objectives of this study were to evaluate the antifungal activity of the volatile compounds of 26 essential oils on germination of P. vitis and S. ampelinum and of their principal active compounds as bases for development of new technol. products. The essential oils of Cinnamomum zeylanicum and Cymbopogon citratus were fungitoxic to P. vitis and S. ampelinum, in vapor and liquid phases, completely inhibiting spore germination. The main compounds found in the essential oils studied were citral, geraniol, eugenol and isoeugenol. All of these, in vapor and liquid phases, were toxic to P. vitis, completely inhibiting spore germination. Citral, in the vapor phase, and citral, eugenol and isoeugenol in the liquid phase, were toxic to S. ampelinum, completely inhibiting spore germination.

Journal of Phytopathology published new progress about Aloysia citriodora. 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, COA of Formula: C10H18O.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Weisany, Weria published the artcileNano silver-encapsulation of Thymus daenensis and Anethum graveolens essential oils enhances antifungal potential against strawberry anthracnose, HPLC of Formula: 124-76-5, the main research area is Thymus Anethum Colletotrichum nanosilver essential oil antifungal.

Nanotechnol. is an eco-friendly strategy in managing plant diseases. In combination with existing practices nanotechnol. can enhance the protection of agricultural products and food. For example, essential oils (EOs) of thyme (Thymus daenensis L.) and dill (Anethum graveolens L.) have an antimicrobial potential and this potential may be enhanced by certain nanoparticle systems. Here we demonstrate that encapsulating EOs of thyme and dill in silver nanoparticles increases their fungicidal activity against Colletotrichum nymphaeae, causing anthracnose in many horticultural crops. Using GC-MS anal., we identified p-cymene, thymol, carvacrol and (E)-caryophyllene as the main EOs of thyme and limonene, cis-dihydrocarvone, cyclohexanon, and carvone as the main EOs of dill. When the EOs of the two sources were encapsulated in silver nanoparticles, synergistic effects against C. nymphaeae were observed, resulting in more than 80% inhibition of mycelium growth of C. nymphaeae. Moreover, conidia germination was suppressed by nano-encapsulated EOs. We also observed considerable morphol. changes in the fungal hyphae when nano-encapsulated EOs were applied. Our study demonstrates the potential of encapsulated EOs in controlling pathogens that can be very applicable as antifungal agents.

Industrial Crops and Products published new progress about Anethum graveolens. 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, HPLC of Formula: 124-76-5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts