Esters-buliding-blocks

Guimaraes, Jonas T. published the artcileEffect of high-intensity ultrasound on the nutritional profile and volatile compounds of a prebiotic soursop whey beverage, Safety of Methyl octanoate, the main research area is prebiotics soursop whey beverage nutritional profile; volatile compound high intensity ultrasound; Anti-hypertensive activity; Bioactive compounds; Emerging technology; Functional food; Non-thermal processing.

This study evaluated the nutritional profile and volatile compounds present in a novel prebiotic (inulin) soursop whey beverage, due to the effects of high-intensity ultrasound (HIUS). The prebiotic soursop whey beverage was produced and processed by non-thermal high-intensity ultrasound varying the power (0, 200, 400 and 600 W) and by high-temperature short time (72 °C for 15 s) thermal treatment. Total acidity, pH, ascorbic acid content, total phenolics compounds content, antioxidant activity, hypertensive activity, fatty acid profile, volatile organic compounds, macro and micro minerals, as well as the heavy metals in these products, were analyzed. Overall, the HIUS technol. induced some pos. changes in the nutritional profile of the soursop whey beverage including beneficial effects, e.g., increase of phenolic content, improvement of the antioxidant and anti-hypertensive activity and reduction of undesired minerals. Although some neg. changes, such as degradation of the ascorbic acid, decrease of some minerals and production of certain volatile compounds were found, the beneficial effects were prominent, thus, opening new opportunities to develop healthy functional beverages.

Ultrasonics Sonochemistry published new progress about Beverages. 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Safety of Methyl octanoate.

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

Ichikawa, Eri published the artcileEffect of koji starter on metabolites in Japanese alcoholic beverage sake made from the sake rice Koshitanrei, Synthetic Route of 5405-41-4, the main research area is metabolite koji starter alc beverage sake rice Koshitanrei; Koshitanrei ; koji starter; metabolite; metabolome analysis; sake.

In sake brewing, the steamed rice is used in 2 ways, added to sake-mash and making rice-koji. Rice-koji is made from the steamed rice by using koji starter, and its quality is an important determinant of the aroma/taste of sake. The sake rice Koshitanrei (KOS) was developed in Niigata Prefecture by crossing 2 sake rice varieties, Gohyakumangoku and Yamadanishiki. Recently, we reported the characteristic components/metabolites in sake made from KOS by conducting metabolome anal. using UPLC-QTOF-MS. In this study, to investigate the effect of koji starter and sake rice cultivars on the sake metabolites, we performed small-scale sake-making tests using the above 3 rice cultivars and 3 koji starters. Finally, we demonstrated that some of the characteristic components/metabolites of sake from KOS are affected by the koji starter. Thus, in addition to rice cultivar, koji starter plays an important role for establishment/maintenance of the quality of the final product.

Bioscience, Biotechnology, and Biochemistry published new progress about Beverages. 5405-41-4 belongs to class esters-buliding-blocks, name is Ethyl 3-hydroxybutanoate, and the molecular formula is C6H12O3, Synthetic Route of 5405-41-4.

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

Roozitalab, Atefeh published the artcileA comparative study on pomegranate juice concentration by osmotic distillation and thermal evaporation processes, Related Products of esters-buliding-blocks, the main research area is Punica juice concentration osmotic distillation thermal evaporation process.

A comparative study was performed on the concentration of pomegranate juice by the osmotic distillation (OD) and thermal evaporation processes. Nanofibrous polyether-block-amid (PEBA) membrane was prepared by the electrospinning technique, and the influence of operating parameters on the performance of the OD process was studied. The exptl. results indicated that an increase in the temperature difference led to higher water flux, while a higher feed temperature resulted in undesirable color changes in the concentrate product. A comparison between the OD and evaporation processes revealed that the OD concentrate product had better quality than the evaporation product in terms of aroma and phenolic compounds retention. Furthermore, an economic anal. was performed by COMFAR III software to compare the OD and evaporation processes for the concentration of the pomegranate juice. It was also found that both OD and evaporation processes were feasible, although the evaporation process was more favorable in terms of the economic efficiency.

Korean Journal of Chemical Engineering published new progress about Beverages. 123-29-5 belongs to class esters-buliding-blocks, name is Ethyl nonanoate, and the molecular formula is C11H22O2, Related Products of esters-buliding-blocks.

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

Chitarrini, Giulia published the artcileVolatile profile of mead fermenting blossom honey and honeydew honey with or without Ribes nigrum, Recommanded Product: Ethyl nonanoate, the main research area is Ribes nigrum mead fermenting blossom honeydew honey volatile profile; black currant; fermentation; gas chromatography-mass spectrometry; honey.

Mead is a not very diffused alc. beverage and is obtained by fermentation of honey and water. Despite its very long tradition, little information is available on the relation between the ingredient used during fermentation and the aromatic characteristics of the fermented beverage outcome. In order to provide further information, multi-floral blossom honey and a forest honeydew honey with and without the addition of black currant during fermentation were used to prepare four different honey wines to be compared for their volatile organic compound content. Fermentation was monitored, and the total phenolic content (Folin-Ciocalteu), volatile organic compounds (HS-SPME-GC-MS), together with a sensory evaluation on the overall quality (44 nontrained panelists) were measured for all products at the end of fermentation A higher total phenolic content resulted in honeydew honey meads, as well as the correspondent honey wine prepared with black currant. A total of 46 volatile organic compounds for pre-fermentation samples and 62 for post-fermentation samples were identified belonging to higher alcs., organic acids, esters, and terpenes. The sensory anal. showed that the difference in meads made from blossom honey and honeydew honey was perceptible by the panelists with a general greater appreciation for the traditional blossom honey mead. These results demonstrated the influences of different components in meads, in particular, the influence of honey quality. However, further studies are needed to establish the relationship between the chem. profile and mead flavor perception.

Molecules published new progress about Beverages. 123-29-5 belongs to class esters-buliding-blocks, name is Ethyl nonanoate, and the molecular formula is C11H22O2, Recommanded Product: Ethyl nonanoate.

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

Ochiai, Nobuo published the artcileFractionated stir bar sorptive extraction using conventional and solvent-assisted approaches for enhanced identification capabilities of aroma compounds in beverages, HPLC of Formula: 5405-41-4, the main research area is stir bar sorptive extraction aroma beverages green tea beer; Aroma compounds; Fractionated stir bar sorptive extraction (Fr-SBSE); Roasted green tea; Solvent-assisted stir bar sorptive extraction (SA-SBSE); Stout beer.

For successful profiling of aroma carriers in food samples, a highly efficient extraction method is mandatory. A two-step stir bar sorptive extraction (SBSE) approach, namely fractionated SBSE (Fr-SBSE), was developed to improve both the organoleptic and the chem. identification of aroma compounds in beverages. The first extraction consists of a conventional mSBSE using three polydimethylsiloxane (PDMS) stir bars (1stmSBSE). This is followed by a solvent-assisted mSBSE performed on the same sample using three solvent-swollen PDMS stir bars (2nd SA-mSBSE). The 1stmSBSE mainly extracts apolar/medium polar solutes with log Kow values >2, while the 2nd SA-mSBSE mainly extracts polar solutes with log Kow values <2. After this two-step fractionation procedure, either thermal desorption (TD) or liquid desorption - large volume injection (LD-LVI), followed by GC-MS is performed on each set of three stir bars. A real-life sample of roasted green tea was used for method development. The performance of the Fr-SBSE method is further illustrated with sensory evaluations and GC-MS anal. for a stout beer sample. Compared to an extraction procedure with SA-mSBSE only, Fr-SBSE including a 1stmSBSE and a 2nd SA-mSBSE reduced co-elution of aroma compounds in the chromatograms and was capable of providing improved mass spectral quality for identification of 17 addnl. compounds in roasted green tea, and 12 addnl. compounds in stout beer, resp. Moreover, odor description and characterization were clearly improved. Journal of Chromatography A published new progress about Beverages. 5405-41-4 belongs to class esters-buliding-blocks, name is Ethyl 3-hydroxybutanoate, and the molecular formula is C6H12O3, HPLC of Formula: 5405-41-4.

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

Chelladorai, Prabhu published the artcileThe potential impact of unsaturation degree of the biodiesels obtained from beverage and food processing biomass streams on the performance, combustion and emission characteristics in a single-cylinder CI engine, Application of Methyl octanoate, the main research area is biodiesel beverage food processing biomass combustion emission CI engine; Combustion and kinetics; Compression ignition engine; Grapeseed biodiesel; Unsaturation; Wheat germ biodiesel; Wheat milling by-product; Winery waste.

The purpose of this study is to exptl. investigate the effect of unsaturation of the biodiesels obtained from grapeseed oil, wheat germ oil and coconut oil (reference fuel) for compression ignition (CI) engine application. Fatty acid profile anal. and physio-chem. properties were determined by standard test procedures. Engine testing was carried out in a 5.2-kW single-cylinder CI engine and the combustion, performance and emission characteristics were analyzed. The effect of fuel property variation and the combustion reaction kinetics due to unsaturation difference have been discussed. The maximum brake thermal efficiency at full load for diesel was found to be 32.3% followed by 31.3%, 30.2% and 27.4%, resp., for coconut biodiesel (CBD), grapeseed biodiesel (GSBD) and wheat germ biodiesel (WGBD). Maximum heat release rate as observed for diesel, CBD, GSBD and WGBD are 63.2 J/°CA 60.7 J/°CA and 59 J/°CA and 43.4 J/°CA resp. The brake-specific NO emission at full load is higher for CBD followed by GSBD, WGBD and diesel having values of 9.23 g/kWh, 8.91 g/kWh, 8.21 g/kWh and 7.6 g/kWh resp. Conversely, the smoke emission is lower for CBD compared to the other tested fuels.

Environmental Science and Pollution Research published new progress about Beverages. 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Application of Methyl octanoate.

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

Chelladorai, Prabhu published the artcileThe potential impact of unsaturation degree of the biodiesels obtained from beverage and food processing biomass streams on the performance, combustion and emission characteristics in a single-cylinder CI engine, Quality Control of 110-42-9, the main research area is biodiesel beverage food processing biomass combustion emission CI engine; Combustion and kinetics; Compression ignition engine; Grapeseed biodiesel; Unsaturation; Wheat germ biodiesel; Wheat milling by-product; Winery waste.

The purpose of this study is to exptl. investigate the effect of unsaturation of the biodiesels obtained from grapeseed oil, wheat germ oil and coconut oil (reference fuel) for compression ignition (CI) engine application. Fatty acid profile anal. and physio-chem. properties were determined by standard test procedures. Engine testing was carried out in a 5.2-kW single-cylinder CI engine and the combustion, performance and emission characteristics were analyzed. The effect of fuel property variation and the combustion reaction kinetics due to unsaturation difference have been discussed. The maximum brake thermal efficiency at full load for diesel was found to be 32.3% followed by 31.3%, 30.2% and 27.4%, resp., for coconut biodiesel (CBD), grapeseed biodiesel (GSBD) and wheat germ biodiesel (WGBD). Maximum heat release rate as observed for diesel, CBD, GSBD and WGBD are 63.2 J/°CA 60.7 J/°CA and 59 J/°CA and 43.4 J/°CA resp. The brake-specific NO emission at full load is higher for CBD followed by GSBD, WGBD and diesel having values of 9.23 g/kWh, 8.91 g/kWh, 8.21 g/kWh and 7.6 g/kWh resp. Conversely, the smoke emission is lower for CBD compared to the other tested fuels.

Environmental Science and Pollution Research published new progress about Beverages. 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, Quality Control of 110-42-9.

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

Chen, Shuang published the artcileSynthesis of T-Type low-viscosity hydrocarbon bio-lubricant from fatty acid methyl esters and coconut oil, Recommanded Product: Methyl decanoate, the main research area is fatty acid methyl ester coconut oil viscosity hydrocarbon biolubricant.

Biomass-derived long-chain alkanes with highly sym. branches, which show comparable properties to traditional petrochem.-based poly-α-olefin (PAO), have great potential economic value for industrial application. In this work, we developed a new strategy to prepare T-type low-viscosity bio-lubricant base oil using inexpensive lipid-derived fatty acid Me esters (FAMEs) as raw materials with a total carbon yield of around 67.3%. The fatty acid Me ester compounds (R1-COOCH3) were converted to fatty alcs. using methanol as the solvent and hydrogen donor over the Cu/SiO2 catalyst. Subsequently, fatty alc. was further brominated to the Bromo-Grignard reagents (R1-CH2-MgBr). In the next step, a T-type synthetic bio-lubricant base oil (R1-C(R2)-R1) was formed by the hydrodeoxygenation of sym. tertiary alc. precursors over Pd/C, where sym. tertiary alc. precursors were obtained via the nucleophilic addition of Bromo-Grignard reagents with fatty acid Me ester (R2-COOCH3). The specific properties of the branched representative bio-lubricant C32 (12’10’10’) are comparable to those of the com. lubricant PAO 3.6. This strategy offered a new promising route for synthesizing high-quality bio-lubricant base oil.

Renewable Energy published new progress about Base oils. 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, Recommanded Product: Methyl decanoate.

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

Lopez-Arellano, Patricia published the artcilePerfluorooctanoic acid disrupts gap junction intercellular communication and induces reactive oxygen species formation and apoptosis in mouse ovaries, SDS of cas: 2044-85-1, the main research area is perfluorooctanoic acid gap junction intercellular communication ROS apoptosis; COCs; GJIC; PFOA; ROS; oocyte; ovary.

Perfluorooctanoic acid (PFOA) is a member of the perfluoroalkyl acid family of compounds Due to the presence of strong carbon-fluorine bonds, it is practically nonbiodegradable and highly persistent in the environment. PFOA has been detected in the follicular fluid of women, and pos. associated with reduced fecundability and infertility. However, there are no reports concerning the exptl. evaluation of PFOA on oocyte toxicity in mammals. The aim of the present study was to determine if PFOA is able to induce oxidative stress in fetal ovaries and cause apoptosis in oocytes in vitro. In addition, since inhibition of the gap junction intercellular communication (GJIC) by PFOA has been demonstrated in liver cells in vivo and in vitro, the effect of PFOA on the GJIC between the oocyte and its supportive cumulus cells was studied. Results show that PFOA induced oocyte apoptosis and necrosis in vitro (medium lethal concentration, LC50 = 112.8μM), as evaluated with Annexin-V-Alexa 508 in combination with BOBO-1 staining. Reactive oxygen species (ROS) levels, as assessed by DCFH-DA, increased significantly in fetal ovaries exposed to 1/4 LC50 (28.2μM, a noncytotoxic and relevant occupational exposure concentration) and LC50 PFOA ex vivo. This perfluorinated compound also caused the blockage of GJIC in cumulus cells-oocyte complexes (COCs) obtained from female mice exposed in vivo, as evaluated by calcein transfer from cumulus cells to the oocyte. The ability of PFOA of disrupting the GJIC in COCs, generating ROS in the fetal ovary and causing apoptosis and necrosis in mammals oocytes, might account for the reported association between increasing maternal plasma concentrations of PFOA with reduced fertility in women.

Environmental Toxicology published new progress about Apoptosis. 2044-85-1 belongs to class esters-buliding-blocks, name is 2′,7′-Dichloro-3-oxo-3H-spiro[isobenzofuran-1,9′-xanthene]-3′,6′-diyl diacetate, and the molecular formula is C24H14Cl2O7, SDS of cas: 2044-85-1.

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

Wu, Po-Ting published the artcileMethylene-blue-encapsulated liposomes as photodynamic therapy nano agents for breast cancer cells, COA of Formula: C24H14Cl2O7, the main research area is photodynamic therapy methylene blue liposome breast cancer cell; breast cancer cell; liposome; methylene blue; photodynamic therapy; zwitterion.

Methylene blue (MB) is a widely used dye and photodynamic therapy (PDT) agent that can produce reactive oxygen species (ROS) after light exposure, triggering apoptosis. However, it is hard for the dye to penetrate through the cell membrane, leading to poor cellular uptake; thus, drug carriers, which could enhance the cellular uptake, are a suitable solution In addition, the defective vessels resulting from fast vessel outgrowth leads to an enhanced permeability and retention (EPR) effect, which gives nanoscale drug carriers a promising potential. In this study, we applied poly(12-(methacryloyloxy)dodecyl phosphorylcholine), a zwitterionic polymer-lipid, to self-assemble into liposomes and encapsulate MB (MB-liposome). Its properties of high stability and fast intracellular uptake were confirmed, and the higher in vitro ROS generation ability of MB-liposomes than that of free MB was also verified. For in vivo tests, we examined the toxicity in mice via tail vein injection. With the features found, MB-liposome has the potential of being an effective PDT nano agent for cancer therapy.

Nanomaterials published new progress about Apoptosis. 2044-85-1 belongs to class esters-buliding-blocks, name is 2′,7′-Dichloro-3-oxo-3H-spiro[isobenzofuran-1,9′-xanthene]-3′,6′-diyl diacetate, and the molecular formula is C24H14Cl2O7, COA of Formula: C24H14Cl2O7.

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