Month: December 2022

Tanideh, Nader published the artcileProtection by pure and genistein fortified extra virgin olive oil, canola oil, and rice bran oil against acetic acid-induced ulcerative colitis in rats, COA of Formula: C23H46O2, the main research area is ulcerative colitis genistein virgin olive canola rice bran oil.

Genistein is a major isoflavone with antioxidant and anti-inflammatory activities and hydrophobic features. To increase its bioavailability, researchers supplemented genistein with dietary oils. The present study aims to compare the effectiveness of genistein supplementation with water solution or oils and find the best possible dietary oil for fortification. A total of 135 male Sprague-Dawley rats were randomly assigned to nine groups, including one control group and eight acetic acid-induced colitis groups. The rats in the intervention groups were treated with 5 mL per kg body weight of oral pure and genistein fortified forms of extra virgin olive oil (EVOO), canola oil (CaO), and rice bran oil (RBO); the Genistein group (G) received 100 mg per kg body weight of genistein in aqueous solution orally. The colitis and control groups did not receive any treatment. The levels of colonic MDA (malondialdehyde), MPO (myeloperoxidase) activity, and IL-1β (interleukin-1β) were evaluated and a stereol. anal. of colonic tissues was performed. All of the dietary oils (EVOO, CaO, and RBO) were effective at ameliorating the rats’ oxidative and inflammatory status (p < 0.05); however, EVOO (with or without genistein) prescription resulted in slightly better results, especially with regard to the inflammatory profile. Addnl., delivering genistein via an oil vehicle was more efficient at reducing MDA formation, MPO activity, and IL-1β concentration than genistein in aqueous solution The quant. anal. of colonic tissue was consistent with the biochem. anal. Our findings suggest that the oral administration of EVOO, canola oil, and rice bran oil can attenuate the elevated IL-1β levels and oxidative damage in induced colitis. Moreover, genistein fortified oils, especially EVOO, showed more beneficial effects in decreasing these markers in comparison with the pure oils or genistein (aqueous solution). Food & Function published new progress about Canola oil Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, COA of Formula: C23H46O2.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Adabavazeh, Fatemeh published the artcileEvaluation of synthesized magnetic nanoparticles and salicylic acid effects on improvement of antioxidant properties and essential oils of Calotropis procera hairy roots and seedlings, Name: Benzyl acetate, the main research area is Calotropis hairy root seedling antioxidant essential oil; magnetic iron oxide nanoparticle salicylic acid.

Calotropis procera (Aiton) W.T. Aiton presents high levels of medicinally important terpenes and phenolics with antiinflammatory, antimicrobial, and antioxidant properties. The present study aimed to develop a suitable platform for mass production of pharmacol. metabolites and improvement of antioxidant activity of C. procera. Motivated by such aim, potential effects of Fe3O4 nanoparticles (Fe3O4 NPs) and salicylic acid (SA) on antioxidant defense response and essential oils in seedlings and hairy roots were investigated. 21-day-old seedlings were treated by five levels of Fe3O4 NPs (0, 50, 100, 150, and 200 mg L-1) and three SA concentrations (0.0, 0.05, 0.1 mM). Moreover, the hairy roots about 2 cm were transferred into MS liquid medium supplemented with the above-mentioned concentrations of Fe3O4 NPs and 0 and 0.01 mM SA. After treatment, total phenolics, flavonoids, flavonol, anthocyanin, activity of polyphenol oxidase and L-phenylalanine ammonia-lyase, ferric-reducing antioxidant power, 2, 2-diphenyl-1-picrylhydrazyl and production of essential oils were analyzed. Result demonstrated that hairy root culture is a powerful alternative for improving and inducing secondary metabolites of C. procera as compared to seedlings. Moreover, it was found that Fe3O4 NPs combined with SA have the more ability than all other treatments to improve antioxidant activity and essential oil in both seedlings and hairy roots. Here, 100 and 200 mg L-1 Fe3O4 NPs combined with 0.01 mM SA had more pronounced impact on induction of pharmacol. constituents and antioxidant activity. Results suggest that Fe3O4 NPs and SA in hairy root culture can bring great insights into development in vitro biosynthesis of valuable secondary metabolites.

Plant Cell, Tissue and Organ Culture published new progress about Anthocyanins Role: THU (Therapeutic Use), BIOL (Biological Study), USES (Uses). 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, Name: Benzyl acetate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Chen, Ruyu published the artcileSynthesis of N-(methoxycarbonyl or isopropylcarbamoylmethoxyphosphonyl)-α-amino acid ester and their stereomers, Safety of Methyl 2-aminopentanoate hydrochloride, the main research area is amino acid phosphonyl preparation.

N-(methoxycarbonylmethoxyphosphonyl)-α-amino acid esters (I) were synthesized via the reaction of MeO2CP(O)ClOMe with amino acid ester hydrochlorides in the presence of a base. Compound I was aminated to yield N-(isopropylcarbamoylmethoxyphosphonyl)-α-amino acid esters (II). With l-amino acids as starting materials, the isomers of products I and II were separated and their configurations were confirmed by single crystal X-ray diffraction of II.

Science in China, Series B: Chemistry published new progress about Amino acids Role: SPN (Synthetic Preparation), PREP (Preparation) (phosphonyl). 10047-10-6 belongs to class esters-buliding-blocks, name is Methyl 2-aminopentanoate hydrochloride, and the molecular formula is C6H14ClNO2, Safety of Methyl 2-aminopentanoate hydrochloride.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Nezi, Paola published the artcileMetabolomic and Proteomic Profile of Dried Hop Inflorescences (Humulus lupulus L. cv. Chinook and cv. Cascade) by SPME-GC-MS and UPLC-MS-MS, Related Products of esters-buliding-blocks, the main research area is Humulus lupulus metabolomic proteomic profile.

Hop (Humulus lupulus L.) is grown mainly for the production of beer. The flowers of the female plant give it the bitter taste and pungent aroma. There are a large number of hop varieties differing in their α-acid content, essential oil levels and odor profiles. Aside from their use in brewing, more recently, hops have been used for the pharmacol. properties of its derivatives that are of great importance to the pharmaceutical industry. Hop is known to have a fairly complex chem. characterized by the presence of a variety of sesquiterpenoids, diterpenoids and triterpenoids, phytoestrogens and flavonoids. Addnl., considering the countless applications in the pharmacol. sector in recent years, a chem. characterization of the different cultivars is essential to better identify the source of specific secondary metabolites. For this purpose, the dried inflorescences of two hop cultivars, Chinook and Cascade, were investigated using Solid-Phase Microextraction-Gas Chromatog.-Mass Spectrometry and Liquid Chromatog.-Tandem Mass Spectrometry (SPME-GC-MS and LC-MS-MS) to describe their metabolomic and proteomic profile. Furthermore, thanks to an in-depth statistical survey, it was possible to carry out a comparative study highlighting interesting implications deriving from this investigative study.

Separations published new progress about Amino acids Role: FFD (Food or Feed Use), BIOL (Biological Study), USES (Uses). 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Related Products of esters-buliding-blocks.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Nezi, Paola published the artcileMetabolomic and Proteomic Profile of Dried Hop Inflorescences (Humulus lupulus L. cv. Chinook and cv. Cascade) by SPME-GC-MS and UPLC-MS-MS, Category: esters-buliding-blocks, the main research area is Humulus lupulus metabolomic proteomic profile.

Hop (Humulus lupulus L.) is grown mainly for the production of beer. The flowers of the female plant give it the bitter taste and pungent aroma. There are a large number of hop varieties differing in their α-acid content, essential oil levels and odor profiles. Aside from their use in brewing, more recently, hops have been used for the pharmacol. properties of its derivatives that are of great importance to the pharmaceutical industry. Hop is known to have a fairly complex chem. characterized by the presence of a variety of sesquiterpenoids, diterpenoids and triterpenoids, phytoestrogens and flavonoids. Addnl., considering the countless applications in the pharmacol. sector in recent years, a chem. characterization of the different cultivars is essential to better identify the source of specific secondary metabolites. For this purpose, the dried inflorescences of two hop cultivars, Chinook and Cascade, were investigated using Solid-Phase Microextraction-Gas Chromatog.-Mass Spectrometry and Liquid Chromatog.-Tandem Mass Spectrometry (SPME-GC-MS and LC-MS-MS) to describe their metabolomic and proteomic profile. Furthermore, thanks to an in-depth statistical survey, it was possible to carry out a comparative study highlighting interesting implications deriving from this investigative study.

Separations published new progress about Amino acids Role: FFD (Food or Feed Use), BIOL (Biological Study), USES (Uses). 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, Category: esters-buliding-blocks.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Sun, Qingyang published the artcileRain-shelter cultivation affects the accumulation of volatiles in ‘shuijing’ grape berries during development, Recommanded Product: Ethyl 3-hydroxybutanoate, the main research area is volatile grape berry development rain shelter cultivation.

Rain-shelter cultivation could protect grape berries from many diseases and affect grape berry quality. However, there have been few studies of the effects of rain-shelter cultivation on the accumulation of volatiles in Shuijing grapes grown in Yunnan Province. Therefore, the goal of this research was to explore the effects of rain-shelter cultivation on the accumulation of volatiles in Shuijing grape berries during development. The Shuijing grapes used during this study were grown in the Yunnan Province of southwest China in two consecutive vintages (2018 and 2019). The results showed that rain-shelter cultivation promoted grape ripening and inhibited volatiles synthesis in Shuijing grape berries. However, the application of rain shelters did not affect the accumulation patterns of volatiles; instead, it affected the concentrations of volatiles in Shuijing grape berries, especially during the maturation phase [12-15 wk after flowering (WAF)]. The concentrations of isoprenoid-derived volatiles (2019), fatty acid-derived volatiles, and amino acid-derived benzenoids in Shuijing grape berries were decreased by rain-shelter cultivation during the maturation phase. The concentration of 2,5-dimethyl-4-methoxy-3(2H)-furanone (mesifurane) was also decreased by rain-shelter cultivation during the late maturation phase (14 and 15 WAF). A principal component anal. (PCA) indicated that the vintage had a much greater influence on the physicochem. parameters and volatiles of the Shuijing grape berries than the cultivation method. This work reveals the formation and accumulation patterns of volatiles of Shuijing grape berries under rain-shelter cultivation during development and has significance for exploring the potential of rain-shelter cultivation in grape-producing regions with excessive rainfall.

HortScience published new progress about Amino acids Role: FFD (Food or Feed Use), BIOL (Biological Study), USES (Uses). 5405-41-4 belongs to class esters-buliding-blocks, name is Ethyl 3-hydroxybutanoate, and the molecular formula is C6H12O3, Recommanded Product: Ethyl 3-hydroxybutanoate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

He, Zeyu published the artcileCooperation between an alcoholic proton and boryl species in the catalytic gem-hydrodiborylation of carboxylic esters to access 1,1-diborylalkanes, Synthetic Route of 111-11-5, the main research area is alc boryl reactivity hydrodiborylation carboxylic ester; diboryl alkane boronic ester preparation chemoselective.

Cooperation between an alc. proton and boryl species in the selective gem-hydrodiborylation of carboxylic esters is described. The simple iron salt FeBr2 was used as an effective catalyst. Exptl. evidence suggests that the ester is initially hydrogenated with the alc. proton as the hydride source to provide an intermediate aldehyde, followed by a gem-diborylation with B2pin2 (bis(pinacolato)diboron) to selectively achieve gem-hydrodiborylation. The structure of the alkoxide used is important for chemoselective transformation of the ester functional group. When tert-butoxide is used, protonation of the iron boryl species to form an iron hydride species is rate-limiting, making hydrodiborylation of the ester selectively occur. When ethoxide or methoxide is used, the protonation of the iron boryl species to form an iron hydride species is relatively facile, making hydrogenation of the ester to an alc. selectively occur with the alc. proton acting as the hydride source. With NaOtBu as the base and EtOH as the proton source, various aliphatic esters like Et acetate were selectively converted to 1,1-diborylalkanes in the presence of B2pin2. Diverse transformations of the obtained 1,1-diborylalkanes exhibit the advantages of this methodol. for hetero multi-functionalization of ester functional groups for the synthesis of various value-added mols.

Organic Chemistry Frontiers published new progress about Alkanes Role: SPN (Synthetic Preparation), PREP (Preparation) (diborylalkanes). 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Synthetic Route of 111-11-5.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Tang, Bo published the artcileChiral amorphous metal-organic polyhedra used as the stationary phase for high-resolution gas chromatography separations, Category: esters-buliding-blocks, the main research area is methyl caproate enanthate high resolution gas chromatog separation; amorphous metal-organic polyhedra; chiral recognition; chiral stationary phases; gas chromatography.

Herein, we describe a new chiral amorphous metal-organic polyhedra used as the stationary phase for high-resolution gas chromatog. (GC). The chiral stationary phase was coated onto a capillary column via a dynamic coating process and investigated for a variety of compounds The exptl. results showed that the chiral stationary phase exhibits good selectivity for linear alkanes, linear alcs., polycyclic aromatic hydrocarbons, isomers, and chiral compounds In addition, the column has the advantages of high column efficiency and short anal. time. The present work indicated that amorphous metal-organic polyhedra have great potential for application as a new type of stationary phase for GC.

Chirality published new progress about Alcohols Role: PEP (Physical, Engineering or Chemical Process), PROC (Process). 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Category: esters-buliding-blocks.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Tang, Bo published the artcileChiral amorphous metal-organic polyhedra used as the stationary phase for high-resolution gas chromatography separations, Related Products of esters-buliding-blocks, the main research area is methyl caproate enanthate high resolution gas chromatog separation; amorphous metal-organic polyhedra; chiral recognition; chiral stationary phases; gas chromatography.

Herein, we describe a new chiral amorphous metal-organic polyhedra used as the stationary phase for high-resolution gas chromatog. (GC). The chiral stationary phase was coated onto a capillary column via a dynamic coating process and investigated for a variety of compounds The exptl. results showed that the chiral stationary phase exhibits good selectivity for linear alkanes, linear alcs., polycyclic aromatic hydrocarbons, isomers, and chiral compounds In addition, the column has the advantages of high column efficiency and short anal. time. The present work indicated that amorphous metal-organic polyhedra have great potential for application as a new type of stationary phase for GC.

Chirality published new progress about Alcohols Role: PEP (Physical, Engineering or Chemical Process), PROC (Process). 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, Related Products of esters-buliding-blocks.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Ghazipour, H. published the artcileInsights on biodiesel blends with alkanol solvents, Related Products of esters-buliding-blocks, the main research area is biodiesel blend alkanol solvent radial distribution.

Thermophys. properties of mixtures of fatty acid esters with alkanols were measured in the whole composition range as a function of temperature for understanding features of biodiesel blends. Excess and mixing properties calculated from exptl. measurements allowed to quantify and analyze the intermol. forces in the considered systems. Likewise, mol. modeling studies using quantum chem. and classical mol. dynamics simulations led to a detailed characterization of these systems at the nanoscopic level. The nature of hydrogen bonding in these liquid mixtures was particularly analyzed from macroscopic properties and theor. modeling results. The reported exptl. and computational study allowed to infer the relationships between the intermol. forces and addnl. microscopic features and the mixtures macroscopic properties, which are relevant for the development and characterization of biodiesels. The non-ideality behavior of the studied systems shows relevant changes in hydrogen bonding structuring upon mixing, with the fatty acid esters largely disrupting the alcs. self-association, although ester – alc. hydrogen bonding is developed, this type of interactions is remarkably weaker than those for alcs. Therefore, the studied biodiesel blends macroscopic properties may be tuned and controlled through the amount of alcs. in the mixtures and rooted on its effect on hydrogen bonding.

Journal of Molecular Liquids published new progress about Alcohols Role: PEP (Physical, Engineering or Chemical Process), PROC (Process). 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, Related Products of esters-buliding-blocks.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics