Category: 111-11-5

Pino, J. A. published the artcileCharacterization of odour-active volatile compounds of acerola wine, Computed Properties of 111-11-5, the main research area is volatile compound acerola wine odor.

The volatile compounds of acerola wine were isolated by headspace-solid phase microextraction (HS-SPME) and analyzed by gas chromatog.-flame ionization detector (GC-FID), gas chromatog.-mass spectrometry (GC-MS), and gas chromatog.-olfactometry (GC-O). The composition of acerola wine included 38 esters, 19 alcs., 16 acids, 8 terpenes, 5 aldehydes, 5 ketones, 3 furans, and 8 miscellaneous compounds The odor-active compounds were screened by application of the aroma extract dilution anal. and odor activity values. Nineteen odorants were considered as odor-active volatiles, from which Me 2-methylbutanoate and 2-ethylhexan-1-ol were the most odor-active compounds

Acta Alimentaria published new progress about Malpighia glabra. 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Computed Properties of 111-11-5.

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

Wang, Yue published the artcileCoupling 16S rDNA Sequencing and Untargeted Mass Spectrometry for Milk Microbial Composition and Metabolites from Dairy Cows with Clinical and Subclinical Mastitis, Category: esters-buliding-blocks, the main research area is dairy milk microbial metabolite mastitis MS; dairy cow; mastitis; metabolomics; microbiota; milk.

The internal environment of the cow′s udder directly affects the udder health and milk quality. 16S rDNA sequencing and liquid chromatog.-mass spectrometry (LC-MS) methods were used to investigate the significant differences in milk microbial diversity and metabolites among cows that are healthy (H) and those suffering from subclin. mastitis (SM) and clin. mastitis (CM). Results uncovered more than 16 and 192 differently abundant microbiota at the phylum and genus levels, resp., and 673 different levels of metabolites enriched in 20 pathways in milk among the 3 groups. This study revealed the pos. relevance between Staphylococcus and Streptococcus and ceramide in milk from CM cows. Similarly, Acinetobacter and Corynebacterium were pos. associated with testosterone glucuronide and 5-methyl-tetrahydrofolate, in milk from SM cows. On the basis of the combined anal. of microbiome and metabolome, this study indicated that, apart from the exogenous pathogens, some beneficial symbiotic bacteria, such as Dietzia, Aeromicrobium, Alistipes, and Sphingobacterium, rarely reported in milk have been found to be significantly reduced during mastitis.

Journal of Agricultural and Food Chemistry published new progress about Acetoanaerobium. 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

Myasoedova, Yu. V. published the artcileHydrazides of Organic Acids in the Transformations of the Peroxide Products of Non-1-ene Ozonolysis, Synthetic Route of 111-11-5, the main research area is acylhydrazone preparation chemoselectivity; peroxide product acid hydrazide aprotic solvent chemoselective reduction; nonene ozone ozonolysis.

The reaction of hydrazides of alicyclic capric and aromatic benzoic and p-hydroxybenzoic acids with the peroxide product of non-1-ene ozonolysis was studied. Capric acid hydrazide exhibited the strongest reducing properties in aprotic solvents (methylene chloride, THF) and led to chemoselective and high-yield (�80%) formation of corresponding acylhydrazone. P-Hydroxybenzoic acid hydrazide formed a similar derivative with a yield of 67% only in THF.

Russian Journal of Organic Chemistry published new progress about Chemoselectivity. 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

Roppongi, Takao published the artcileSolubility and mass transfer coefficient of oxygen through gas- and water-lipid interfaces, Recommanded Product: Methyl octanoate, the main research area is gas water lipid interface oxygen solubility mass transfer; Henry’s constant; fatty acid; mass transfer coefficient; oxidation; vegetable oil.

The solubility of oxygen and its transfer rate to the lipid phase play important roles in lipid oxidation, which affects the taste and safety of lipid-containing foods. In this study, we measured the Henry’s constants (solubility) of oxygen for fatty acids, fatty acid esters, and triacylglycerols (TAGs; vegetable oils), as well as the mass transfer coefficients of oxygen at the gas- and water-lipid interfaces. The constants and coefficients were estimated by analyzing the change over time in the oxygen partial pressure or concentration in the closed container based on the mass balance equations of oxygen in the gas and liquid phases. The constant for water obtained by the method used in this study was in agreement with the previously reported value to confirm the validity of the method. The constants for lipids depended on the lipid type, and were higher in the order of fatty acid ester, fatty acid, and TAG. That is, the solubility of oxygen decreased in this order. For all lipids, the constant increased as the number of carbon atoms in the fatty acid chain increased. The constants for fatty acids and their esters were linearly correlated with the enthalpies of evaporation of the lipids. The mass transfer coefficients of oxygen at the gas-liquid interface were on the order of 10-5 m/s for water and Me dodecanoate and of 10-6 m/s for TAG (rapeseed oil). The coefficient at the water-lipid interface was on the order of 10-6 m/s. The Henry’s constants (solubility) and transfer rate of oxygen to the lipid phase, fatty acids, fatty acid esters, and triacylglycerols (TAG) were measured. The lipids solubilized three to five times more oxygen than water, and mass transfer rate of oxygen at gas- and water-lipid interfaces were almost same. The constants for fatty acids and fatty acid esters were linearly correlated to their enthalpies of evaporation, and this correlation is expected to be useful for estimating the Henry’s constants for other fatty acids and their esters.

Journal of Food Science published new progress about Cottonseed (oil). 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Recommanded Product: Methyl octanoate.

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

Li, Jian-Feng published the artcileStructural characterization and aquatic toxicity prediction of esters, SDS of cas: 111-11-5, the main research area is aquatic toxicity ester compound structure relationship.

Based on the three-dimensional structures of the compounds, the structures of 48 ester compounds were expressed parametrically. Through multiple linear regression and partial least-squares regression, the relationship models between ester compound structures and aquatic toxicity log(1/IGC50) were established. The correlation coefficients (R2) of the models were 0.9974 and 0.9940, and the standard deviations (SD) were 0.0469 and 0.0646, resp. The stability of the models was evaluated by the leave-one-out internal cross-test. The correlation coefficients (RCV2) of the models of interactive tests were 0.9939 and 0.8952, and the standard deviation (SDCV) was 0.0715 and 0.0925, resp. The external samples were used to test the predictive ability of the models, and the correlation coefficients (Rtest2) of the external predictions were 0.9955 and 0.9955, and the standard deviations (SDtest) were 0.0720 and 0.0716, resp. The mol. structure descriptors could successfully represent the structural characteristics of the compounds, and the built models had good fitting effects, strong stability and high prediction accuracy. The present study has a good reference value for the study of the structure-toxicity relationship of toxic compounds in the environment.

Chinese Journal of Structural Chemistry published new progress about Aquatic toxicity. 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, SDS of cas: 111-11-5.

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

Mousavi, Nayereh Sadat published the artcilePredicting the surface tension of mixtures of fatty acid ethyl esters and biodiesel fuels using UNIFAC activity coefficients, Product Details of C9H18O2, the main research area is surface tension mixture FAME biodiesel fuel UNIFAC.

This work presents the use of a formal thermodn. model together with UNIFAC activity coefficients model, without any further adjustable parameter, to predict the surface tension of biodiesel fuels based on the equality of chem. potentials between the vapor-liquid interface and liquid bulk. The biodiesel samples included in this work were reported previously in the open literature. They were produced from vegetable oils such as: canola, coconut, corn, cottonseed, hazelnut, lard, palm, peanut, rapeseed, safflower, soybean, sunflower, and Walnut. Surface tension values for 18 samples of binary, ternary and quaternary mixtures of fatty acid Et esters (FAEEs) at T = 298.15 were predicted with an average absolute relative deviation (AARD) = 1.39%. Surface tension values for 31 biodiesel samples composed by fatty acid Me esters (FAMEs) were also predicted at temperatures from 303.15 K to 353.15 K. The AARD value obtained for the 78 exptl. points of biodiesel samples was 1.86% which shows a very good agreement with exptl. measurements. In the UNIFAC method, predictions of surface tension values for the mixtures are based on the knowledge of the values of the surface tension for the pure components; these values were obtained from different sources. Also, two simple mixing rules on mass and mole fraction basis were used to predict the surface tension of biodiesel fuels. The AARD value obtained from the comparison between exptl. and calculated values were: 2.77% and 2.91% for mixing rules on mass and mole fractions, resp.

Fluid Phase Equilibria published new progress about Arachis hypogaea. 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Product Details of C9H18O2.

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

Rajak, Upendra published the artcileAssessment of diesel engine performance using spirulina microalgae biodiesel, Related Products of esters-buliding-blocks, the main research area is spirulina microalgae biodiesel fuel property.

The present work encompasses combustion, performance, and emission parameters of exptl. investigations of a single cylinder, four stroke, water cooled, direct injection (DI), naturally aspirated compression ignition (CI) engine with a rated power output of 3.7 kW at constant engine speed (1500 rpm) using diesel and different blends of microalgae spirulina. The microalgae spirulina blend of ratio with diesel (BYY) where YY indicates blending percentage (0%, 20%, 40%, 60%, 80%, and 100% volume basis with diesel resp.) with different engine loading condition (25%, 50%, 75% and 100%) were compared with diesel at CR17.5:1. The output illustrates that the most optimum value is B20% when compared with diesel. The result depicts firstly that there is a reduction in brake thermal efficiency by 0.98%, exhaust gas temperature by 1.7%, hydrocarbon (HC) by 16.3%, carbon monoxide (CO) by 3.6%, NOX emission by of 6.8%, and smoke emission by 12.35% resp. Secondly, there is an increase in specific fuel consumption by up to 5.2% and CO2 emission by 2.8% for spirulina blend ratio (B20%) as compared to diesel (B0%) at full load condition engine with constant engine speed.

Energy (Oxford, United Kingdom) published new progress about Ashes (residues). 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

Rasheed, Hafiz Majid published the artcileChemical profiling and anti-breast cancer potential of hexane fraction of Sphaeranthus indicus flowers, Category: esters-buliding-blocks, the main research area is Sphaeranthus flower extract anticancer breast cancer.

The current study aimed to determine the phytochems. and anti-breast cancer potential of Sphaeranthus indicus. S. indicus flowers were extracted with methanol followed by fractionation using n-hexane. For the chem. composition of n-hexane fraction, qual. phytochem. and GC-MS anal. were performed. The anti-proliferative activity was measured by MTT assay, whereas, cytotoxic and proapoptotic effects in MCF-7 (breast cancer) cells were determined using propidium iodide, 4,6-diamidino-2-phenylindole, dichlorofluorescin diacetate, and JC-1 staining through fluorescent microscopy. The phytochem. anal. indicated presence of phytosterols, oils and resins in the nhexane fraction. GC-MS anal. showed that n-hexane fraction comprises of 11 compounds including Me esters of caprylic acid, myristic acid, pentadecanoic acid, palmitic acid, margaric acid, stearic acid, oleic acid, elaidic acid, linoleic acid, linolenic acid and behanic acid. The tested fraction showed remarkable cytotoxic activity against breast cancer (MCF-7) cells while it was found less toxic towards non-cancerous (BHK-21) cells. Furthermore, morphol. assessment through fluorescent microscopy revealed cytotoxic and apoptotic effects by improved cell membrane permeability, increased reactive oxygen species level, compromised mitochondrial activity and condensation of chromatin network. Conclusion: The n-hexane fraction of S. indicus contains phytosterols, oils and fatty acid Me esters and produced apoptotic effect against breast cancer cells.

Tropical Journal of Pharmaceutical Research published new progress about Antitumor agents. 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

Hanousek Cica, Karla published the artcileCharacterisation of flavour compounds in Biska – a herbal spirit produced with mistletoe, Related Products of esters-buliding-blocks, the main research area is flavor spirit mistletoe aromatic compound.

Mistletoe (Viscum album) is mostly used in its herbal form owing to its content of diverse biol. active substances. In Croatia’s Adriatic region, it is used for production of Biska, a strong alc. beverage produced by maceration of mistletoe in spirit or brandy, with or without the addition of honey. In this work, Biska was characterized by anal. of aroma compounds and physicochem. parameters and is the first study of the aroma profile of a strong alc. beverage produced with mistletoe. The aroma of 14 samples of Biska – five com. and nine homemade – was analyzed using GC/MS with solid-phase microextraction A total of 166 aroma compounds were detected. Major components were Et esters (medium and long chain fatty acids), fatty alcs., iso-Pr myristate, aldehyde decanal and some terpenes. The distribution of aroma compounds was evaluated by principal component anal. Some significant differences in physicochem. properties were observed including ethanol concentration (28-44% volume/volume) and pH (4.4-6.5). Although the color of Biska was light brown with greenish reflections, there were differences in chromatic parameters. The com. samples were darker and were less transparent than homemade Biska, perhaps reflecting more extensive maceration/extraction or the addition of caramel.

Journal of the Institute of Brewing published new progress about Distilled spirits. 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

Li, Zekun published the artcileCo-expression network analysis uncovers key candidate genes related to the regulation of volatile esters accumulation in Woodland strawberry, Application In Synthesis of 111-11-5, the main research area is network analysis candidate gene volatile ester strawberry; ERF gene; Fruit; Hawaii4; Ruegen; Transcription; WGCNA.

Main conclusion: FveERF (FvH4_5g04470.1), FveAP2 (FvH4_1g16370.1) and FveWRKY (FvH4_6g42870.1) might be involved in fruit maturation of strawberry. Overexpression of FveERF could activate the expression of AAT gene and ester accumulation. Volatile esters play an important role in the aroma of strawberry fruits, whose flavor is the result of a complex mixture of various esters. The accumulation of these volatiles is closely tied to changes in metabolism during fruit ripening. Acyltransferase (AAT) is recognized as having a significant effect in ester formation. However, there is little knowledge about the regulation network of AAT. Here, we collected the data of RNA-seq and headspace GC-MS at five time points during fruit maturation of Hawaii4 and Ruegen strawberry varieties. A total of 106 volatile compounds were identified in the fruit of woodland strawberries, including 58 esters, which occupied 41.09% (Hawaii4) or 33.40% (Ruegen) of total volatile concentration Transcriptome anal. revealed eight transcription factors highly associated with AAT genes. Through the changes in esters and the weight co-expression network anal. (WGCNA), a detailed gene network was established. This demonstrated that ERF gene (FvH4_5g04470.1), AP2 gene (FvH4_1g16370.1) and one WRKY gene (FvH4_6g42870.1) might be involved in expression of AAT genes, especially ERF genes. Overexpression of FveERF (FvH4_5g04470.1) does activate expression of AAT genes and ester accumulation in fruits of strawberry. Our findings provide valuable clues to gain better insight into the ester formation process of numerous fruits.

Planta published new progress about Fragaria ananassa. 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Application In Synthesis of 111-11-5.

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