Category: 110-42-9

i Cortiella, Mariona Gil published the artcileChemical and physical implications of the use of alternative vessels to oak barrels during the production of white wines, Quality Control of 110-42-9, the main research area is oak barrel white wine alternative vessel chem phys implication; Sauvignon Blanc; aging on lees; clay jars; concrete vessels; oval-shaped tanks; polyethylene vessels; stainless-steel tanks; white wine.

Recently, the use of alternative vessels to oak barrels during winemaking has become increasingly popular, but little is known about their impact on the chem. composition of the resulting wines. To address this issue, a Sauvignon Blanc wine was elaborated from the same grape juice by using cylindrical stainless-steel tanks, oval-shaped concrete vessels, oval-shaped polyethylene vessels, and clay jars in triplicate. Each vessel was used for alc. fermentation and the aging of wines over its own lees. Wines elaborated in concrete vessels showed the highest pH and the lowest titratable acidity, most likely related to the observed release of inorganic compounds from the concrete walls. Little effect of the vessels was seen on the wine color and phenolic composition Wines elaborated in clay jars showed the highest turbidity and the highest content of soluble polysaccharides, while those made using cylindrical stainless-steel tanks showed the highest content of volatile compounds Despite the observed differences, all of the vessels tested seem suitable for white wine production since every wine showed chem. features that corresponded with the quality standards of Sauvignon Blanc wines.

Molecules published new progress about Acidity. 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

D’Agostino, Maria F. published the artcileBlackberries (Rubus ulmifolius Schott) from Calabria (Italy): a comprehensive characterisation, COA of Formula: C11H22O2, the main research area is Rubus ulmifolius Schott quality characterization.

The establishment of the corresponding standards of quality to promote the commercialization of Rubus ulmifolius Schott (Rosaceae) blackberries from Calabria (Italy) has been aimed in this study. Data on the volatile composition gathered by Solid-Phase Microextraction (SPME) followed by GC-MS have been complemented with the study for the first time of physicochem. parameters and antioxidant capacity of wild and cultivated blackberries collected in seven different locations of Calabria. Wild fruits showed significantly higher dry matter content (16.34-22.14%) and pH (3.92-5.12) and lower total acidity (0.23-0.74 as % of citric acid) compared to the cultivated sample (dry matter: 15.31%; pH: 3.30 and total acidity: 1% citric acid), whereas color and total soluble solids were similar. Antioxidant capacity (DPPH assay) of wild blackberries, correlated (r = 0.71) with results from ABTS assay, was significantly higher (SE50 = 1.6-3.4 mg DW), in agreement with its higher content of total anthocyanins and total phenolics. Ethanol (11.8-32.4%), trans-2-hexenal (2.7-21.3%), methylbutanal (5.7-17.4%), and Et acetate (4.6-11.9%) were the major compounds in both wild and cultivated blackberries. Although the presence or relative concentration of several volatiles (e.g. p-cymen-8-ol, decanal, 3-hydroxy esters, etc.) seemed to be characteristic of the harvest location/blackberry type, further research on a higher number of samples should be carried out to confirm these results. The comprehensive characterization addressed for the first time in this paper is a valuable preliminary contribution to satisfy the demand by consumers and farmers of objective data to support the premium quality of Calabrian blackberries.

European Food Research and Technology published new progress about Acidity. 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, COA of Formula: C11H22O2.

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

Martins, Zita E. published the artcileA chemometric approach to compare Portuguese native hops with worldwide commercial varieties, Related Products of esters-buliding-blocks, the main research area is hops linalool headspace solid phase microextraction GC mass spectrometry.

A diversity of native hops can be found in Portugal, but little is known concerning their volatile and sensory profiles. Nowadays, the exponential growth of the craft beer sector and the preference for more flavoured beers promote the research of unexplored wild hops that have the advantage of being well adapted to the Portuguese edaphoclimatic conditions. Therefore, the goal of this study was to characterize the volatile profile of 75 native Portuguese hops and compare with 34 com. varieties by means of headspace solid-phase microextraction gas chromatog./mass spectrometry (HS-SPME-GC/MS), in order to select those that present similarities with commercialized hops and confirm by check-all-that-apply (CATA) anal. if they present similar organoleptic characteristics. Due to the complexity of hop volatile profile and the great number of samples analyzed, robust chemometric treatment of chromatog. and sensorial data was required to make reliable conclusions. Twelve Portuguese hops present a volatile profile and sensory characteristics quite similar to some com. varieties, because 11 Portuguese hops were grouped with the European varieties Challenger, Hallertauer Magnum and Perle, both in volatile profile and sensory anal. and one clustered with American registered varieties.

Journal of Chemometrics published new progress about Taxonomy. 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

Cincotta, Fabrizio published the artcileInfluence of leaf removal on grape, wine and aroma compounds of Vitis vinifera L. cv. Merlot under Mediterranean climate, Application In Synthesis of 110-42-9, the main research area is Vitis vinifera aroma compound wine grape leaf removal climate.

Merlot is one of the most cultivated cultivars in the world since it easily adapts to different climatic conditions. Leaf removal (LR) is commonly used for red berry varieties but in cold wine-growing areas and nothing has been reported on the effects of LR on Merlot cultivated under Mediterranean climate. The aim of the research is to evaluate the influence of this technique on grape and wine quality as well as wine aroma potential of Merlot cultivated in Sicily. Vines were subjected to LR for two consecutive years, and productivity and chem. parameters were monitored in grapes, whereas chem. composition and volatile aroma compounds, analyzed by gas chromatog. mass spectrometry, were monitored in wines. LR pos. influenced the plant yield, increased the sugar content and decreased the acidity in grapes at harvest. The wines of the defoliated treatment showed a higher content of total polyphenols and anthocyanins, higher color intensity, and lower color hue. Merlot wines obtained under Mediterranean climate were characterized by a high amount of esters and varietal aromas and the content of most of volatiles were even increased by the LR with pos. effects on the aroma potential of Merlot wines. The vintage affected almost all the studied parameters with the warmer and dryer vintage enhancing the LR effects on grapes and wines. This is of great interest in the light of the climate changes towards the global warming and the increasing aridity of the Mediterranean area.

European Food Research and Technology published new progress about Acidity. 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

Wang, Zheng published the artcileRuthenium-catalyzed hydrogenation of CO2 as a route to methyl esters for use as biofuels or fine chemicals, Recommanded Product: Methyl decanoate, the main research area is carbon dioxide hydrogenation methyl ester ruthenium catalyst.

A novel robust diphosphine-ruthenium(II) complex has been developed that can efficiently catalyze both the hydrogenation of CO2 to methanol and its in situ condensation with carboxylic acids to form Me esters; a TON of up to 3260 is achievable for the CO2 to methanol step. Both aromatic and aliphatic carboxylic acids can be transformed to their corresponding Me esters with high conversion and selectivity (17 aliphatic and 18 aromatic examples). On the basis of a series of experiments, a mechanism has been proposed to account for the various steps involved in the catalytic pathway. More importantly, this approach provides a promising route for using CO2 as a C1 source for the production of biofuels, fine chems. and methanol.

Chemical Science published new progress about Biofuels. 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

Kass, Michael D. published the artcileCompatibility of Biologically Derivable Alcohols, Alkanes, Esters, Ketones, and an Ether as Diesel Blendstocks with Fuel System Elastomers, SDS of cas: 110-42-9, the main research area is compatibility biol derivable alc alkanes ester ketone ether diesel.

The compatibility of 11 bioderivable diesel blendstocks with 17 elastomer materials common to fuel storage, dispensing, and delivery systems was evaluated though volume and hardness measurements. The blendstocks included two alcs. (1-octanol and 1-nonanol), two acid esters (Me decanoate and hexyl hexanoate), tri(propylene glycol) Me ether (TPM), butylcyclohexane, two ketones (2-nonanone and 2-pentanone), biodiesel, and renewable diesel. Each blendstock was blended with diesel in concentrations of 0, 10, 20, and 30 wt %. The elastomers included two fluorocarbons, six acrylonitrile butadiene rubbers (NBRs), and one each of fluorosilicone, neoprene, polyurethane, styrene butadiene rubber (SBR), hydrogenated acrylonitrile butadiene rubber (HNBR), a blend of NBR and PVC (OZO), epichlorohydrin/ethylene oxide (ECO), ethylene propylene diene monomer (EPDM), and silicone. Specimens of each elastomer material were immersed in the test fuels for a period of 4 wk and measured for volume and hardness. Afterward, they were dried at 60°C for 20 h and remeasured. The results showed that the alkanes, esters, and alcs. were suitable with many of the elastomers. For some materials, such as neoprene, these blendstocks improved the compatibility compared to neat diesel. In contrast, the ketones and TPM produced unsuitable volume expansion (>30%) and softening in many of the elastomers including the high-performance fluoroelastomers. Anal. of the results showed that the swelling behavior is predominantly due to polarity of the elastomer and test fuels.

Energy & Fuels published new progress about Biofuels. 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, SDS of cas: 110-42-9.

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

Guo, Ziwei published the artcileHighly selective conversion of natural oil to alcohols or alkanes over a Pd stabilized CuZnAl catalyst under mild conditions, Recommanded Product: Methyl decanoate, the main research area is conversion natural oil alc alkanes production.

A novel and green catalytic system based on a Pd stabilized CuZnAl catalyst was designed for one-pot conversion of natural oil components to the corresponding alcs. or long-chain linear and branched alkanes with high selectivity and atom economy. When Me decanoate was used as the model compound, a nearly full yield of n-decanol was obtained at 200 °C and 2 MPa H2 within 8 h. 100% Decane was produced when acidic HZSM-5 was introduced under the same reaction conditions, and the selectivity of n-decane and i-decane could be tuned by temperature Cu species were verified as the active sites for lipid conversion, while a small amount of Pd could stabilize the catalyst to avoid Cu leaching. The reaction pathway involved hydrogenation, where Me decanoate can be equivalently converted to methanol and decanol or decane, and no extra CO2 or CO from decarboxylation or decarbonylation was detected. This system increases the sustainability and economy of natural oil conversion to valuable liquid fuel and chems.

Green Chemistry published new progress about Chemicals. 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

Trinklein, Timothy J. published the artcileDetermination of the signal-to-noise ratio enhancement in comprehensive three-dimensional gas chromatography, HPLC of Formula: 110-42-9, the main research area is signal noise ratio enhancement three dimensional gas chromatog.

We investigate the extent to which comprehensive three-dimensional gas chromatog. (GC3) provides a signal enhancement (SE) and a signal-to-noise ratio enhancement (S/NRel) relative to one-dimensional (1D)-GC. Specifically, the SE is defined as the ratio of the tallest 3D peak height from the GC3 separation to the 1D peak height from the unmodulated 1D-GC separation A model is proposed which allows the analyst to predict the theor. attainable SE (SET) based upon the peak width and sampling d. inputs. The model is validated via comparison of the SET to the exptl. measured SE (SEM) obtained using total-transfer GC3 (100% duty cycle for both modulators) with time-of-flight mass spectrometry detection. Two exptl. conditions were studied using the same GC3 column set, differing principally in the modulation period from the 1D to 2D columns: 4 s vs. 8 s. Under the first set of conditions, the average SEM was 97 (±22), in excellent agreement with the SET of 97 (±18). The second set of conditions improved the average SEM to 181 (±27), also in agreement with the average SET of 176 (±26). The average S/NRel following correction for the mass spectrum acquisition frequency was 38.8 (±11.2) and 59.0 (±27.2) for the two sets of conditions. The enhancement in S/N is largely attributed to moving the signal to a higher frequency domain where the impact of “”low frequency”” noise is less detrimental. The findings here provide strong evidence that GC3 separations can provide enhanced detectability relative to 1D-GC and comprehensive two-dimensional gas chromatog. (GCxGC) separations

Analytical Chemistry (Washington, DC, United States) published new progress about Cryostats. 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, HPLC of Formula: 110-42-9.

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

Choi, Inseob published the artcileNeutral pH nonfat dry milk beverages with turbidity reduced by sodium hexametaphosphate: Physical and sensory properties during storage, Name: Methyl decanoate, the main research area is neutral pH dry milk bevarage sodium hexametaphosphate sensory property.

There has been ascending demand on beverages enriched with dairy proteins. Calcium chelators can improve transparency and stability of beverages with nonfat dry milk (NFDM) resulting from dissociation of casein micelles. In this study, vanilla-flavored model beverages with 5% or 10% weight/weight NFDM were manufactured with or without 0.43% weight/weight sodium hexametaphosphate (SHMP), phys. properties were studied during 70-day storage at 4°C and room temperature (RT), and sensory properties were evaluated during storage at 4°C. SHMP resulted in decreased turbidity, particle diameter, and zeta-potential magnitude. The turbidity was stable at 4°C but increased from 161 to 315 NTU and 333 to 818 NTU, resp., for beverages with 5% and 10% NFDM after 70-day storage at RT. SHMP resulted in insignificant and significant increase in viscosity for 5% and 10% NFDM beverage, resp. The 10% NFDM beverage with SHMP also developed into a gel during storage at RT but remained fluidic at 4°C. Descriptive sensory anal. suggested that SHMP resulted in soapy flavor and salty taste of beverages with decreasing vanilla and milky flavors after 70-day refrigerated storage. Findings from the present study suggest that SHMP may be used to reduce the turbidity of refrigerated beverages based on NFDM.

LWT–Food Science and Technology published new progress about Beverages. 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, Name: Methyl decanoate.

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

Ochieng, Brian O. published the artcileDynamics in nutrients, sterols and total flavonoid content during processing of the edible Long-Horned grasshopper (Ruspolia differens Serville) for food, Application In Synthesis of 110-42-9, the main research area is Ruspolia flavonoid campesterol beta sitosterol dynamic nutrient; Food and nutritional security; Nutrients; Post-harvest processing; Ruspolia differens; Sterols; Tettigoniidae; Total flavonoid.

Long-horned grasshopper (Ruspolia differens Serville) is a tasty delicacy in over 20 African countries. This study evaluated the impact of diverse post-harvest thermal treatment (blanching, boiling, toasting, and deep-frying) on the nutrients, total flavonoid content and sterols preservation of R. differens products. Crude protein, ash, and fiber of R. differens was drastically reduced by deep-frying technique. There was increase in Omega-3 (α-linolenic acid), Omega-6 fatty acid (linoleic and arachidonic acids) and sterols [(22Z)-27-Norergosta-5,22-dien-3β-ol, cholesterol, campesterol, cholest-4-ene-3-one and β-sitosterol] and flavonoids (2-3 folds) during blanching compared to other techniques. The iron and zinc content increased significantly in blanched and boiled products of R. differens. Thus, losses of nutrients, total flavonoid content and sterols during processing of R. differens for food can be mitigated by employing blanching technique, which is cheaper and least time-consuming. The implications of these dietary and therapeutic compounds on human nutrition and health are discussed.

Food Chemistry published new progress about Blanching. 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