Tag: M.W=150-200

Mamadalieva, N. Z. published the artcileChemical Composition and Biological Activity of Constituents of Otostegia bucharica, Name: rel-(1R,2R,4R)-1,7,7-Trimethylbicyclo[2.2.1]heptan-2-ol, the main research area is Otostegia essential oil camphene hexanal ethylbenzene verbenene limonene.

The genus Otostegia (Lamiaceae) comprises 15 species distributed mainly in Central Asia and eastern Africa. Volatile compounds, flavonoids, diterpenes, steroids, tanning agents, and triterpenoids were isolated from plants of this genus . Therefore, the phenol and flavonoid contents, the chem. composition of essential oil of O. bucharica, and the antioxidant and enzyme-inhibiting potential of the plant constituents were studied by us. The qual. and quant. chem. compositions of essential oil of O. bucharica wereanalyzed by GC-MS. A total of 62 compounds were identified and made up 95.7%of the mass (Table 1). Terpinen-4-ol (29.7%), pulegone (18.8%), verbenol (6.9%), α-terpineol (6.1%), and geranyl acetone(5.1%) were the major chem. constituents of the studied essential oil.

Chemistry of Natural Compounds published new progress about Diterpenes Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 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

Hojjati, Fatemeh published the artcileLeaf essential oils and their application in systematics of Juniperus excelsa complex in Iran, COA of Formula: C10H18O, the main research area is Juniperus leaf essential oil Iran.

The composition of the leaf essential oils of ten populations of Juniperus excelsa complex in Iran are reported and compared. Hydrodistillation yielded in 0.08%-3.78% dry weight (v/w) clear oils among populations studied. The oils are mostly dominated by α- Pinene, Limonene and β-Myrcene. The simplest oil was found in Qushchi (J. polycarpos var. polycarpos) with 25 components and the most complex oil was found in Lushan1 (J. polycarpos var. polycarpos) with 92 components. Quant. data is presented for 164 components were found. The southern populations, Fasa and Khabr, show differences in composition of essential oils compared with other populations so that Borneol and isopinocamphone are diagnostic for them. These populations have been identified as Juniperus seravschanica in southeast of Iran and hybrid samples between J. polycarpos and J. seravschanica in southwest of Iran whereas other populations, as is confirmed in this study, are J. polycarpos. It is confirmed by essential oils data that there is no J. excelsa in Iran.

Biochemical Systematics and Ecology published new progress about Aldehydes Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 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

Rosa, D. published the artcilePhytochemical characteristics of white turmeric rhizome (Curcuma zedoaria (Berg.) Roscoe) essential oil from Lembang, West Java, Indonesia, Product Details of C10H18O, the main research area is Curcuma zedoaria essential oil phytochem characteristic.

White turmeric (Curcuma zedoaria) rhizome is widely used as a cooking and medicinal ingredient. It is important to determine the essential oil standard that is abundant in white turmeric to prevent adulteration. The results showed that the yield concentration of essential oil from C. zedoaria was 0.66% v/w with the following characteristics: brownies color, spicy taste, as well as sharp and specific aroma. The phytochem. screening result indicated that the essential oil contained alkaloid, flavonoid, triterpenoid, sesquiterpenoid, and quinone. Other phytochem. characteristics included sp. gr. value, optical rotation, refractive index, and sapofinication value which were 0.989 g/cm3, (+)15.19, 1.501, and 28.05 resp. C. zedoaria essential oil was soluble in 80% and 90% ethanol but not soluble in 50%, 60%, and 70% ethanol. Using GC-MS, twenty-one compounds were identified in the essential oil, of which camphor was the marker compound

International Journal of Agricultural Technology published new progress about Alkaloids Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 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, Product Details of C10H18O.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Kassara, Stella published the artcilePectolytic enzyme reduces the concentration of colloidal particles in wine due to changes in polysaccharide structure and aggregation properties, Computed Properties of 59-23-4, the main research area is penzyme polysaccharide colloidal particle aggregation property.

To explore the effect of pectolytic enzyme application on polysaccharide size and colloidal interactions, rose wines were prepared from pressed Shiraz grape juice, and red wines were made from the same juice by the addition of skins and seeds from fresh pressings. A pectolytic enzyme preparation containing primarily polygalacturonase and side-activities of arabinase and pectin lyase was used. Enzyme treatment enhanced the contribution of high mol. weight (≈ 200 kDa) polysaccharides rich in mannose and glucose (mannoproteins) and removed arabinose-rich polysaccharides of intermediate (≈ 40 kDa) size. Enzyme application reduced the mol. weight average of a class of smaller polysaccharides of approx. 6 kDa (rhamnogalacturonan II). All wines had similar particle sizes, but enzyme treatment markedly reduced particle concentration in wines, particularly in rose wines. Wine polysaccharides were purified and when reconstituted in model wine, showed reduced particle concentration in response to enzyme treatment. Aggregation of polysaccharide in the presence of seed tannin was also markedly reduced by enzyme treatment. The results indicated that changes in structure introduced by the enzyme affected wine colloidal properties, potentially increasing polysaccharide solubility

International Journal of Biological Macromolecules published new progress about Anthocyanins Role: FFD (Food or Feed Use), BIOL (Biological Study), USES (Uses). 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

Motta, Marcus Vinicius Lisboa published the artcileStudy of the mechanical degradation mechanism of guar gum in turbulent flow by FTIR, Product Details of C6H12O6, the main research area is turbulent flow guar gum mech degradation mechanism; Degradation mechanism, FTIR; Drag reduction; Polymers.

Guar gum is used in low concentrations as a drag reducing agent in turbulent flows to significantly accelerate flow in oil pipelines, oil well operations and aqueous systems. Drag reduction also promotes a decrease in energy demand in pumping systems. However, the polymers undergo mech. degradation and lose the ability to promote drag reduction over time. In this paper, the drag reduction, the power required by the pumps and the degradation of the guar gum were evaluated during a turbulent flow of an aqueous solution containing the biopolymer. The results indicate the mechanism of degradation of guar gum by the hydrolysis of the bond α (1 → 6), liberating the galactose, which justice to the loss of efficiency throughout the process. An understanding of this mechanism should allow for the development of more mech. resistant polymers and the increase of drag reduction capacity over time.

International Journal of Biological Macromolecules published new progress about Biopolymers Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 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, Product Details of C6H12O6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Motta, Marcus Vinicius Lisboa published the artcileThermal and spectroscopic analyses of guar gum degradation submitted to turbulent flow, Synthetic Route of 59-23-4, the main research area is guar gum oxidative degradation turbulent flow thermal spectroscopy analysis; (13)C NMR; Drag reduction; Guar gum.

In this paper, a 400 ppm aqueous solution of guar gum polysaccharide was submitted to a turbulent flow regime in order to monitor mol. degradation and drag reduction Guar gum samples were isolated and analyzed by spectroscopic, thermoanal. and viscosimetric techniques. The drag reduction promoted by guar gum is compromised as the polysaccharide undergoes degradation Viscosimetric anal. of guar gum showed a reduction in viscous mol. mass. Mid-IR spectra and hydrogen NMR suggest that mech. degradation promotes hydrolysis of the glycosidic bond α(1→ 6) releasing (D)-galactose owing to the appearance of the carbonyl functional group. Thermal anal. revealed the reduction of the polysaccharide′s thermal stability by reduction of the polymer chain. A comprehensive anal. of these combined parameters affords a foundation for the development of more efficient biopolymers in the context of improved drag reduction

International Journal of Biological Macromolecules published new progress about Biopolymers Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 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

Niu, Jinzhong published the artcileFunctional characterization of galectin-3 from Nile tilapia (Oreochromis niloticus) and its regulatory role on monocytes/macrophages, Name: (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, the main research area is Oreochromis galectin monocyte macrophage functional characterization; Galectin-3; Inflammation; Monocytes/macrophages; Nile tilapia; Phagocytosis.

Galectin-3 is a kind of β-galactoside-binding lectin involved in host defense against pathogen infection. However, the immune functions of fish galectin-3 remain poorly understood. In this study, the roles of a fish galectin-3 (OnGal-3) from Nile tilapia (Oreochromis niloticus) on the binding activity on bacterial pathogens or PAMPs, the agglutinating activity on bacterial pathogens and the regulatory effects on monocytes/macrophages activity were investigated. After in vitro challenge of Streptococcus agalactiae and Aeromonas hydrophila, OnGal-3 expressions were significantly up-regulated in monocytes/macrophages. In addition, recombinant OnGal-3(rOnGal-3) protein showed strong binding activity on bacterial pathogens or PAMPs. Also, rOnGal-3 agglutinated Gram-pos. and Gram-neg. bacteria. Moreover, rOnGal-3 could induce the inflammatory factors expressions in monocytes/macrophages and enhance phagocytosis and respiratory burst activity of monocytes/macrophages. These results suggest that fish galectin-3 participates in anti-bacterial immune response through recognizing pathogens and modulating monocytes/macrophages activity.

Fish & Shellfish Immunology published new progress about A zeolites Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 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

Chen, Guangjing published the artcileComparison of different extraction methods for polysaccharides from bamboo shoots (Chimonobambusa quadrangularis) processing by-products, Name: (2R,3S,4S,5R)-2,3,4,5,6-Pentahydroxyhexanal, the main research area is Chimonobambusa shoot polysaccharide yield uronic acid antioxidant; Antioxidant activity; Chemical structure; Chimonobambusa quadrangularis polysaccharides; Extraction methods; Physicochemical property.

The aim of this study was to evaluate the influences of extraction methods on the yield, chem. structure and antioxidant activity of polysaccharides from bamboo shoots (Chimonobambusa quadrangularis) processing byproducts (CPS). CPSs were extracted by using five methods including hot water extraction (HWE), accelerated solvent extraction (ASE), ultrasonic-assisted extraction (UAE), microwave-assisted extraction (MAE) and enzyme-assisted extraction (EAE). The exptl. results showed that the uronic acid contents, monosaccharide contents, mol. weights and antioxidant activities of the five CPSs were significantly different. CPS extracted using ASE method (ASE-CPS) possessed the highest extraction yield (9.94%), the highest medium-high-mol.-weight value (136.07 kDa) and notable antioxidant ability. UAE-CPS had the highest uronic acid (9.42%) and the lowest medium-high-mol. weight value (117.49 kDa), and its antioxidant activity was the best. Based on the correlation anal., the higher uronic acid content, smaller mol. weight, and lower content of monosaccharide composition of glucose for the CPS-UAE might contribute to its higher antioxidant activity. From an industrial viewpoint, ASE technique could be a promising and alternative way to extract CPS due to its high yield, notable antioxidant activity, and convenient industrialization.

International Journal of Biological Macromolecules published new progress about Amino acids Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 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

Dimos, Nicole published the artcileCryoEM analysis of small plant biocatalysts at sub-2 Å resolution, COA of Formula: C10H18O, the main research area is Salvia borneol dehydrogenase BDH2 BDH1 cryo electron microscopy; borneol dehydrogenases; camphor; cryo-electron microscopy; green chemistry; high resolution; plant biocatalysts; terpenes.

Enzyme catalysis has emerged as a key technol. for developing efficient, sustainable processes in the chem., biotechnol. and pharmaceutical industries. Plants provide large and diverse pools of biosynthetic enzymes that facilitate complex reactions, such as the formation of intricate terpene carbon skeletons, with exquisite specificity. High-resolution structural anal. of these enzymes is crucial in order to understand their mechanisms and modulate their properties by targeted engineering. Although cryo-electron microscopy (cryoEM) has revolutionized structural biol., its applicability to high-resolution structural anal. of comparatively small enzymes has so far been largely unexplored. Here, it is shown that cryoEM can reveal the structures of plant borneol dehydrogenases of ∼120 kDa at or below 2 Å resolution, paving the way for the rapid development of new biocatalysts that can provide access to bioactive terpenes and terpenoids.

Acta Crystallographica, Section D: Structural Biology published new progress about Amino acids Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 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

Cautela, Domenico published the artcileThe ancient neapolitan sweet lime and the calabrian lemoncetta locrese belong to the same citrus species, HPLC of Formula: 124-76-5, the main research area is citrus flavonoid volatile organic compound; Mediterranean sweet lime; Neapolitan limmo; Neapolitan “four citrus fruits” liqueur; agrobiodiversity; lemoncetta Locrese; taxonomy.

“”Neapolitan limmo”” is an ancient and rare sweet Mediterranean lime, now almost extinct but used until a few decades ago for the production of a fragrant liqueur called the “”four citrus fruits””. The objective of this work was to compare, through the use of chem. (flavonoids, volatile organic compounds, and chiral compounds) and mol. (DNA fingerprint based on RAPD-PCR) markers, the residual population of Neapolitan limmo with other populations of sweet limes, identified in Calabria and known as “”lemoncetta Locrese””. We report for the first time specific botanical characteristics of the two fruits and unequivocally show that the ancient sweet Mediterranean limes Neapolitan limmo and lemoncetta Locrese are synonyms of the same Citrus species. Owing to the biodiversity conserved in their places of origin, it will now be possible to recover, enhance and implement the use of this ancient sweet lime for agro-industrial purposes.

Molecules published new progress about Anthocyanins Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 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