Category: 110-42-9

Cagliero, Cecilia published the artcileCan the selectivity of phosphonium based ionic liquids be exploited as stationary phase for routine gas chromatography? A case study: The use of trihexyl(tetradecyl) phosphonium chloride in the flavor, fragrance and natural product fields, Category: esters-buliding-blocks, the main research area is phosphonium ionic liquid stationary phase GC; Flavors, fragrances and natural products; Gas chromatography; Ionic liquid stationary phases; Phosphonium based ionic liquids; Selectivity, efficiency and operative temperatures.

Room temperature ionic liquids (ILs) are well established stationary phases (SPs) for gas chromatog. (GC) in several fields of applications because of their unique and tunable selectivity, low vapor pressure and volatility, high thermal stability (over 300 °C), and good chromatog. properties. This study is focused on an IL based on a phosphonium derivative (trihexyl(tetradecyl)phosphonium chloride, [P+66614] [Cl-]), previously shown to be suitable as a gas chromatog. SP because of its unique selectivity. In particular, it aims to establish the operative conditions to apply [P+66614][Cl-] to routine anal. of samples containing medium to high volatility analytes with different polarity, organic functional groups and chem. structure. In the first part, the study critically evaluates long term [P+66614][Cl-] column stability and maximum allowable operating temperatures (MAOT). The relatively low MAOT (210 °C) requires the adoption of a dedicated approach for analytes eluting above this temperature based on a suitable combination of efficiency and selectivity, and column characteristics (length, inner diameter and film thickness) and operative conditions. The performance of [P+66614][Cl-] as a GC SP have been validated through the Grob test, a model mixture of 41 compounds of different polarity, structure, and with different organic functional groups in the flavor and fragrance field, a standard mixture of 37 fatty acid Me esters, some essential oils containing pairs or groups of compounds of different volatility critical to sep. in particular peppermint, thyme, oregano, sandalwood and frankincense. The above approach has produced highly satisfactory separations with all of the samples investigated.

Journal of Chromatography A published new progress about Essential oils Role: AMX (Analytical Matrix), ANST (Analytical Study). 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

Behera, Rakesh R. published the artcileHydrosilylation of Esters Catalyzed by Bisphosphine Manganese(I) Complex: Selective Transformation of Esters to Alcohols, Safety of Methyl decanoate, the main research area is alc diol preparation; Xantphos manganese complex preparation chemoselective hydrosilylation catalyst crystal structure; manganese catalyst chemoselective hydrosilylation ester.

A tricarbonylruthenium Xantphos complex I was prepared and characterized by X-ray crystallog.; in the presence of I, esters underwent chemoselective hydrosilylation with phenylsilane under neat conditions (followed by workup with base) to yield esters. Aryl, alkyl, and alkenyl mono- and dicarboxylates and lactones underwent chemoselective reduction to alcs. and diols; ketoesters underwent reduction to diols. Poly(1,6-hexanediol adipate) underwent hydrosilylation to 1,6-hexanediol.

Organic Letters published new progress about Aliphatic alcohols Role: SPN (Synthetic Preparation), PREP (Preparation). 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, Safety of Methyl decanoate.

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

Nan, He published the artcileExamining the unique retention behavior of volatile carboxylic acids in gas chromatography using zwitterionic liquid stationary phases, Application of Methyl decanoate, the main research area is volatile carboxylic acid gas chromatog zwitterionic liquid stationary phase; Gas chromatography; Solvation parameter model; Stationary phase; Volatile carboxylic acids; Zwitterionic liquid.

For the first time, gas chromatog. (GC) stationary phases consisting of zwitterionic liquids (ZILs) possessing sulfonate functional groups were utilized for the anal. of volatile carboxylic acids (VCAs). The highly polar and acidic nature of VCAs significantly limits the number of currently available GC stationary phases, which are all largely based on acid-modified polyethylene glycol. In this study, it is shown that this class of ZILs exhibit strong retention of VCAs with excellent peak symmetry. Unique chromatog. selectivity toward VCAs is also demonstrated by tuning the structural features of the ZILs. The solvation properties of the three ZILs as well as a structurally similar conventional monocationic IL were characterized using the Abraham solvation parameter model.

Journal of Chromatography A published new progress about Carboxylic acids Role: ANT (Analyte), ANST (Analytical Study) (volatile). 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, Application of Methyl decanoate.

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

Diaz, Irina published the artcileCombined effects of sulfur dioxide, glutathione and light exposure on the conservation of bottled Sauvignon blanc, Quality Control of 110-42-9, the main research area is Wine Oxidation Light exposure Antioxidants Storage; Antioxidants; Light exposure; Oxidation; Storage; Wine.

Oxygen exposure may trigger a series of changes that could be detrimental to the quality white wines. This study evaluated the combined effects of sulfur dioxide, glutathione and light exposure on the chem. and sensory perception of bottled Sauvignon blanc. The wines were manually bottled into clear bottles, closed with low oxygen transfer rate stoppers, and stored for three months, either exposed or protected from light. The wines exposed to artificial light showed higher rates of sulfite loss and oxygen consumption, were significantly darker in color, exhibited significant changes in the concentration of phenolics and volatile compounds, were perceived as less fruity/floral, and had higher nuances of solvent, earthy and honey aromas than the ones protected from light. The treatments with higher amounts of initial sulfites and glutathione were able to delay some of these changes but were less significant than protecting the wines from artificial light.

Food Chemistry published new progress about Polyphenols (nonpolymeric) Role: ANT (Analyte), ANST (Analytical Study). 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

Abouelenein, Doaa published the artcileInfluence of Freezing and Different Drying Methods on Volatile Profiles of Strawberry and Analysis of Volatile Compounds of Strawberry Commercial Jams, Synthetic Route of 110-42-9, the main research area is freezing drying volatile compound strawberry com jam; HS-SPME/GC-MS; aroma; commercial jams; drying methods; freezing; strawberry; volatile organic compounds.

Strawberry is the most consumed berry fruit worldwide due to its unique aroma and flavor. Drying fruits to produce a powder represents one of the possible conservation methods to extend their shelf-life. The aim of the present study was to compare the influence of freezing and different drying methods on the volatile profile of strawberry using the HS-SPME/GC-MS method, in addition to anal. of strawberry jam volatiles. A total of 165 compounds were identified, accounting for 85.03-96.88% of the total volatile compositions Results and PCA showed that freezing and each drying process affected the volatile profile in a different way, and the most remarkable representative differential volatiles were Et hexanoate, hexyl acetate, (E)-2-hexenyl acetate, mesifurane, (E)-nerolidol, γ-decalactone, 1-hexanol, and acetoin. Shade air-dried, frozen, freeze-dried, and oven-dried 45°C samples retained more of the fruity and sweet aromas of strawberry, representing more than 68% of the total aroma intensity according to the literature. In contrast, the microwave-drying method showed drastic loss of fruity esters. Strawberry jams demonstrated complete destruction of esters and alcs. in most jams, while terpenes were significantly increased. These findings help better understand the aroma of strawberry and provide a guide for the effects of drying, freezing, and jam processing.

Molecules published new progress about 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, Synthetic Route of 110-42-9.

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

Clarke, Holly J. published the artcileDietary compounds influencing the sensorial, volatile and phytochemical properties of bovine milk, Quality Control of 110-42-9, the main research area is bovine milk dietary compound volatile phytochem property; dairy; feeding system; isoflavones; sensory; volatile organic compounds (VOCs).

The main aim of this study was to evaluate the volatile profile, sensory perception, and phytochem. content of bovine milk produced from cows fed on three distinct feeding systems, namely grass (GRS), grass/clover (CLV), and total mixed ration (TMR). Previous studies have identified that feed type can influence the sensory perception of milk directly via the transfer of volatile aromatic compounds, or indirectly by the transfer of non-volatile substrates that act as precursors for volatile compounds In the present study, significant differences were observed in the phytochem. profile of the different feed and milk samples. The isoflavone formonoetin was significantly higher in CLV feed samples, but higher in raw GRS milk, while other smaller isoflavones, such as daidzein, genistein, and apigenin were highly correlated to raw CLV milk. This suggests that changes in isoflavone content and concentration in milk relate to diet, but also to metabolism in the rumen. This study also found unique potential volatile biomarkers in milk (di-Me sulfone) related to feeding systems, or significant differences in the concentration of others (toluene, p-cresol, Et and Me esters) based on feeding systems. TMR milk scored significantly higher for hay-like flavor and white color, while GRS and CLV milk scored significantly higher for a creamy color. Milk samples were easily distinguishable by their volatile profile based on feeding system, storage time, and pasteurization.

Molecules published new progress about 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, Quality Control of 110-42-9.

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

Song, Yaru published the artcileComparison of volatile compounds and fatty acids of jujubes (Ziziphus jujuba mill.) before and after blackening process, Application In Synthesis of 110-42-9, the main research area is volatile compound fatty acids jujubes Ziziphus jujuba blackening process.

Blackened jujube, as an emerging fruit processed product, was obtained from red jujube by a blackening processing of Maillard reaction with high humidity and temperature This study was to compare the volatile compounds (VOCs) and fatty acids (FAs) between red jujubes (RJs) and blackened jujubes (BJs) of six cultivars (JZ, MZ, JSXZ, HZ, YHDZ and TZ) using headspace solid-phase microextraction gas chromatog.-mass spectrometry (HS-SPME-GC-MS) and GC-MS resp. A total of 56 VOCs were detected in these six cultivars (RJs and BJs), and their types and contents were analyzed. A total of 22 FAs, including 12 saturated fatty acids (SFAs) and 10 unsaturated fatty acids (USFAs), was determined in the RJs and BJs, The content of essential FAs in BJs was higher. B-JZ had the greatest increase in linoleic and -linolenic from 5.3 mg/100 g to 10.0 mg/100 g and from 3.4 mg/100 g to 5.1 mg/100 g, resp. It indicated that JZ is better for improving flavor and the composition of FAs by blackening process than other five cultivars. In addition, FAs and VOCs were found to have a linear correlation with color. The types of VOCs and FAs between red and blackened jujubes were also discriminated using principal component anal. (PCA).

International Journal of Food Properties published new progress about 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, Application In Synthesis of 110-42-9.

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

Prakash, Amruta published the artcileUltraviolet induced random mutagenesis in Bacillus amyloliquefaciens (MF 510169) for improving biodiesel production, Formula: C11H22O2, the main research area is UV mutagenesis bacillus amyloliquefaciens biodiesel production.

The present study aims to mutate Bacillus amyloliquefaciens (MF 510169) randomly for improving lipid accumulation towards green and efficient transformation of bacterial oil into biodiesel. The cellular lipid content of wild type Bacillus strain is improved by exposing the strain to UV light at 254 nm (UV-C) and 365 nm (UV-A) wavelengths for different time intervals from 20 to 380 s. A remarkable increase in lipid content is noted with increase in cell dry weight when exposed to UV-C with 320 s exposure time. The accumulated lipids are extracted and transesterified through acid catalyst (H2SO4, 1.52%) by various means for biodiesel production The chem. profiling of thus obtained biodiesel has been done by employing various spectroscopic techniques. The phys. and chem. properties of thus transesterified biodiesel are well-matching 86-90% with International ASTM standards The antioxidant stability of produced biodiesel tested with an addition of synthetic antioxidants remains stable for 25 d.

Fuel published new progress about Animal fats Role: TEM (Technical or Engineered Material Use), USES (Uses). 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, Formula: C11H22O2.

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

Bai, Yuanqi published the artcileDevelopment of skeletal mechanism for four-component biodiesel surrogate fuel with polycyclic aromatic hydrocarbon, Category: esters-buliding-blocks, the main research area is skeletal mechanism biodiesel fuel polycyclic aromatic hydrocarbon methyl decanoate.

A four-component skeletal mechanism consisting of 1,4-hexadiene, Me decanoate, Me trans-3-hexenoate, n-hexadecane was developed to represent biodiesel fuel from various sources. The Me decanoate and n-hexadecane were selected to represent saturated fatty acid Me esters, and trans-3-hexenoate and 1,4-hexadiene were applied to adjust degree of unsaturation A skeletal mechanism for this four-component biodiesel surrogate fuel with PAH was first formulated based on decoupling methodol., which contained a detailed C1 mechanism, a reduced C2-C3 mechanism, PAH mechanism and sub-mechanisms of four surrogate fuels, including 314 reactions and 98 species. After that, the skeletal mechanism was widely verified against various fundamental combustion experiments for each pure component and their mixtures Furthermore, the exptl. results of biodiesel soot volume fractions from biodiesel spray combustion in a constant-volume combustion vessel were used to verify the accuracy of the mechanism, and the skeletal mechanism was also coupled into the CFD-software to simulate the combustion characteristics of a diesel engine. Results showed that the calculated results agreed well with the exptl. data including ignition delay times (IDTs), primary species concentrations, laminar flame speed, soot prediction and in-cylinder pressure of the engine. Overall, the developed compact skeletal mechanism was suitable for the combustion simulation of biodiesel fuel.

Renewable Energy published new progress about Animal fats Role: TEM (Technical or Engineered Material Use), 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

Herliana published the artcileTransesterification of coconut oil (Cocos nucifera L.) into biodiesel using zeolite-A catalyst based on rice husk silica and aluminum foil, Recommanded Product: Methyl decanoate, the main research area is Cocos zeolite aluminum foil biodiesel transesterification.

In this research, zeolite-A was synthesized by hydrothermal method using silica of rice husk and aluminum foil as raw materials. For zeolite preparation, a particular amount of silica was dissolved in NaOH solution which is then aged with variation time of 24-96 h, the mixed solution was then added with aluminum foil and again aged for 24 h, the crystallization process was carried out in an oven of 100°C 96 h. The resulting zeolite was then calcined at 550°C for 6 h. The zeolite characterization by XRD showed that zeolite-A had been formed and had characteristics following the zeolite-A standard from IZA. The resulting zeolite-A has good crystallinity as indicated by the sharp peaks on the resulting diffractogram. The zeolite-A catalytic test on transesterification of coconut oil showed high catalyst performance, characterized by the conversion of fatty acids in coconut oil to Me esters with 100% conversion percent. The formation of the Me ester was proven based on the results of the anal. with FTIR and GCMS which showed the characteristics of Me ester at wavenumbers 1744 cm-1 (C=O), 2922 cm-1 (C-H), 1170 cm-1 (C-O), with the highest percentage in the form of Me laurate at 31.80%.

Journal of Physics: Conference Series published new progress about A zeolites Role: TEM (Technical or Engineered Material Use), USES (Uses). 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