Category: 110-42-9

Zhang, Yanxin published the artcileChemical variability in volatile composition among five species of genus Solidago (Asteraceae), Formula: C11H22O2, the main research area is Solidago essential oil volatile compound.

Solidago is a genus of more than 120 species of flowering plants in the Asteraceae family and mainly distributed in Americas. To explore the differences of volatile components and analyze their correlations as well variability among the five species (Solidago caesia, Solidago tortifolia, Solidago glomerata, Solidago nemoralis and Solidago rugosa) of this genus, their volatile components were determined by gas chromatog.-mass spectrometry (GC-MS) and then the principal component anal. (PCA) was carried out with PAST (PAST2.08). The results indicated that Solidago caesia almost characterized by the same chemotype with Solidago glomerata due to their common essential oil compositions b-cubebene, (1R)-(+)-α-pinene and (-)-a-cadinol while Solidago nemoralis has little variability with Solidago rugosa and with the presence of germacrene D, limonene and sabenene as the representative compounds But there is chem. variability between Solidago tortifolia and other four species. Sabenene and πcalacorene are the major volatile compounds of Solidago tortifolia.

Biochemical Systematics and Ecology published new progress about Essential oils Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 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

Rajvanshi, Sandeep Kumar published the artcileIdentification of bioactive phytometabolites in essential oil of African marigold (Tagetes erecta L.) using FT-IR & DART-MS techniques, Category: esters-buliding-blocks, the main research area is Tagetes erecta essential oil bioactive phytometabolite FTIR DARTMS.

Tagetes erecta L. belongs to family Asteraceae, most widely used as ornamental plant, has cosmetic as well as medicines values. Since oil extracted from its plant parts for secondary metabolites present in the plant such as alkaloids, steroids, tannins and phenolic compounds, flavonoids, etc. Oil was extracted from flowers, as well as leaves marigold (Tagetes erecta L.) in fresh form and after processing by solvent extraction method using n-hexane as solvent. Samples were subjected to Fourier transform IR spectroscopy (FT-IR) where spectra of samples have shown the presence of major functional groups viz., alkanes, aromatic, phenols, aliphatic, nitro compounds and amines, etc at wavelength of 3400 to 3480 cm-1 (alc. & phenols), 2850 to 2990 cm-1 (alkanes), 1050 to 1200 cm-1 (aliphatic amines) and 720 to 890 cm-1 (aromatics). Presence of more number of peaks shows the presence of more number of bioactive compounds These samples were further validated by DART Mass Spectrometry where peak at m/z 136 correspond to terpenoids, 151 (ketone), 169 (phenols), 183 (alc.), etc. Presence of phenolic compound galic acid in the samples proves the antioxidant activity of the samples.

Annals of Plant Sciences published new progress about Aliphatic amines Role: BSU (Biological Study, Unclassified), BIOL (Biological 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

Rajabi, Mehdi published the artcileQSAR Models for Predicting Aquatic Toxicity of Esters Using Genetic Algorithm-Multiple Linear Regression Methods, Safety of Methyl decanoate, the main research area is Tetrahymena ester decyl acetate aquatic toxicity QSAR model; GA-MLR; Molecular descriptors; QSAR models; Tetrahymena pyriformis; toxicity of aliphatic esters; validation..

Esters are of great importance in industry, medicine, and space studies. Therefore, studying the toxicity of esters is very important. In this research, a Quant. Structure-Activity Relationship (QSAR) model was proposed for the prediction of aquatic toxicity (log 1/IGC50) of aliphatic esters towards Tetrahymena pyriformis using mol. descriptors. A data set of 48 aliphatic esters was separated into a training set of 34 compounds and a test set of 14 compounds A large number of mol. descriptors were calculated with Dragon software. The Genetic Algorithm (GA) and Multiple Linear Regression (MLR) methods were used to select the suitable descriptors and to generate the correlation models that relate the chem. structural features to the biol. activities. The predictive powers of the MLR models are discussed by using Leave-One-Out (LOO) cross-validation and external test set. The best QSAR model is obtained with R2 value of 0.899, Q2 LOO = 0.928, F = 137.73, RMSE = 0.263. The predictive ability of the GA-MLR model with two selected mol. descriptors is satisfactory and it can be used for designing similar group and predicting of toxicity (log 1/IGC50) of ester derivatives

Combinatorial Chemistry & High Throughput Screening published new progress about Aliphatic esters Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 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

Gupta, Abhinaba published the artcileRole of critical area in nanofiltration of fatty acids by polymer membrane, Recommanded Product: Methyl decanoate, the main research area is polydicyclopentadiene eicosapentaenoic docosahexaenoic acid ethyl ester nanofiltration mol size.

Fatty acids are an essential class of raw materials for the chem. industry. Fatty acids find widespread application in food, cosmetics, soaps, surfactants, pharmaceutical, and nutraceutical industry. A specific type of derivative- fatty acid Me esters are used as a bio based alternative to fossil fuels. A lot of research has undergone to develop novel efficient processes to purify fatty acids from reaction mixture or a mixture of fatty acids. Membrane performance is usually dependent on size of the mol. to be separated in the membrane and pore size which decides the rate of permeation of mol. through the membrane. This paper discusses about the performance of two polymer nanofiltration membranes developed recently in purifying a mixture of fatty acids and exhibits critical area being the determinant factor for mols. to permeate through the membrane. Epoxy nanofiltration membranes have separated EPA-EE and DHA-EE from each other based on mol. weight and critical area, whereas these membranes separated, small organic mols. in the mol. weight range 100-300 gmol-1 based on critical area. Epoxy nanofiltration membranes have also successfully separated saturated fatty acids from each other with selectivity of 10:1. Polydicyclopentadiene based nanofiltration membrane have shown to sep. saturated fatty acids from mono and polyunsaturated fatty acids with good selectivity based on critical area. This paper emphasizes critical area is a better representation of mol. size as compared to mol. weight

Materials Today: Proceedings published new progress about Amines Role: BUU (Biological Use, Unclassified), BIOL (Biological Study), 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

Qi, Heting published the artcileCharacteristic volatile fingerprints and odor activity values in different citrus-tea by HS-GC-IMS and HS-SPME-GC-MS, Quality Control of 110-42-9, the main research area is odorant odor citrus tea HS GC IMS SPME MS; HS-GC-IMS; HS-SPME-GC-MS; OAV; citrus-tea; orthogonal partial least squares discrimination analysis; volatile components.

Citrus tea is an emerging tea drink produced from tea and the pericarp of citrus, which consumers have increasingly favored due to its potential health effects and unique flavor. This study aimed to simultaneously combine the characteristic volatile fingerprints with the odor activity values (OAVs) of different citrus teas for the first time by headspace gas chromatog.-ion mobility spectrometry (HS-GC-IMS) and headspace solid-phase microextraction-gas chromatog.-mass spectrometry (HS-SPME-GC-MS). Results showed that the establishment of a citrus tea flavor fingerprint based on HS-GC-IMS data can provide an effective means for the rapid identification and traceability of different citrus varieties. Moreover, 68 volatile compounds (OAV > 1) were identified by HS-SPME-GC-MS, which reflected the contribution of aroma compounds to the characteristic flavor of samples. Amongst them, the contribution of linalool with sweet flower fragrance was the highest. Odorants such as decanal, β-lonone, β-ionone, β-myrcene and D-limonene also contributed significantly to all samples. According to principal component anal., the samples from different citrus teas were significantly separated Visualization anal. based on Pearson correlation coefficients suggested that the correlation between key compounds was clarified. A comprehensive evaluation of the aroma of citrus tea will guide citrus tea flavor quality control and mass production

Molecules published new progress about Acids Role: BUU (Biological Use, Unclassified), 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

Blackford, C. L. published the artcileExploring the influence of grape tissues on the concentration of wine volatile compounds, Recommanded Product: Methyl decanoate, the main research area is volatile compound grape tissue skin seed wine flavor.

Knowledge of varietal wine flavor and aroma compounds has improved, but gaps exist concerning how grape composition impacts wine style. This work aimed to explore the influence that different grape tissues can have on the volatile profiles of wines. Riesling and Cabernet Sauvignon berries were separated into skin, flesh and seeds. Two sets of fermentations were performed using separated tissues: one using an equal mass of each tissue and another where the amount of each tissue in 25 g of berries was fermented. When an equal mass of tissue was used, the seed-derived wines had a higher concentration of esters than that produced from other grape tissues. Those produced using skins had the highest concentration of lipoxygenase pathway-derived compounds, and, for Riesling, a higher concentration of monoterpenes. When the proportional amounts of each tissue found per berry were used, the flesh-derived wines generally had a higher concentration of many wine volatiles compared to the other tissues. This reflects the greater proportion of flesh tissue in the berry compared to skin and seeds. Seed-derived compounds can enhance ester biosynthesis during fermentation and skins appear to have high lipoxygenase pathway activity. Nevertheless, the flesh makes up such a large proportion of the whole berry that it has the major influence on volatile profiles of whole berry fermentations Different berry tissues can alter wine composition in unique ways, and this can inform strategies to alter wine composition through vineyard management or the selection of new germplasm.

Australian Journal of Grape and Wine Research published new progress about Aromatic compounds Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 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

Menshhein, Guilherme published the artcileConcentration of renewable products of crude bio-oil from thermal cracking of the methyl esters in castor oil, COA of Formula: C11H22O2, the main research area is crude bio methyl ester castor oil thermal cracking.

Castor oil has been widely used as raw material to obtain compounds such as paints, solvents, rubbers, polyurethane polymers and chem. inputs. Then, one highlighted route is thermal cracking of castor oil to produce bio-oil, mainly composed of heptaldehyde and Me undecenoate, which are used as precursors of lactones in the food and beverage industry. The main aim of this study was to evaluate the separation heptaldehyde and Me undecenoate by distillation of bio-oil from thermal cracking of the Me esters in castor oil (MECO). Distilled fractions were analyzed by gas chromatog. (GC). Thus, it was possible to concentrate the fractions of heptaldehyde and Me undecenoate in a section with a distillation system at atm. pressure with a distillation rate of 5.0 mL min-1 at 270°C, which motivates new researches for up-scaling of the process.

Renewable Energy published new progress about Lactones Role: OCU (Occurrence, Unclassified), OCCU (Occurrence). 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

Voce, Sabrina published the artcileCompositional characterization of commercial sparkling wines from cv. Ribolla Gialla produced in Friuli Venezia Giulia, COA of Formula: C11H22O2, the main research area is Ribolla Gialla sparkling wine terpene norisoprenoid lipid.

Ribolla Gialla (RG) is a white grape variety used in the production of high-quality sparkling wines. It is cultivated in a limited area between Friuli Venezia Giulia (FVG-Northeast Italy) and Slovenia; for this reason, there is little information about the composition and chem. characteristics of the sparkling wines produced. This work used different anal. approaches (FTIR spectroscopy, UHPLC-MS/MS, liquid-liquid extraction, SPE and SPME-GC-MS) to characterize thirty-three com. sparkling RG wines from different areas of FVG. The characteristics included the overall volatile profile and content of terpenes, C13-norisoprenoids, lipids, and metabolites of aromatic amino acids. The aroma profile of RG wines was mainly characterized by fermentative esters and β-damascenone, whereas other norisoprenoids and varietal aromas were below the odor threshold. Appreciable amounts of certain fatty acids were found (e.g., palmitic acid), which could be potentially correlated with greater foam stability. However, high concentrations of aromatic amino acids metabolites highlighted a higher risk of developing atypical aging defects.

European Food Research and Technology published new progress about Esters Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 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

Cecchi, Lorenzo published the artcileExploitation of virgin olive oil by-products (Olea europaea L .): phenolic and volatile compounds transformations phenomena in fresh two-phase olive pomace (′alperujo′) under different storage conditions, Formula: C11H22O2, the main research area is olive oil Olea europaea phenolic volatile compound storage condition; HS-SPME-GC-MS; nutraceuticals; olive mill by-products; olive pomace storage; polyphenols; secoiridoids.

Much effort has recently been spent for re-using virgin olive oil byproducts as nutraceutical ingredients for human diet thanks to their richness in bioactive phenols, but their management is not easy for producers. We aimed to provide useful information for a better management of fresh olive pomace before drying, by studying the phenolic and volatile compounds transformations phenomena of fresh olive pomace stored under different conditions planned to simulate controlled and uncontrolled temperature conditions in olive oil mills. The evolution of the phenolic and volatile compounds was studied by high-performance liquid chromatog.-diode array detector mass spectrometry (HPLC-DAD-MS) and headspace solid-phase microextraction gas chromatog.-mass spectrometry (HS-SPME-GC-MS). The phenolic profile varied rapidly during storage: the verbascoside content decreased about 70% after 17 days even at 4 °C, while the content of simple phenols such as hydroxytyrosol and caffeic acid increased over time. The low temperature was able to slow down these phenomena. A total of 94 volatile organic compounds (VOCs) were detected in the fresh olive pomace, with a prevalence of lipoxygenase (LOX) VOCs (78%), mainly aldehydes (19 490.9μg kg-1) despite the higher number of alcs. A decrease in LOX volatiles and a quick development of the ones linked to off-flavors (carboxylic acids, alcs., acetates) were observed, in particular after 4 days of storage at room temperature Only storage at 4 °C allowed these phenomena to be slowed down. To preserve the natural phenolic phytocomplex of fresh olive pomace before drying and to avoid off-flavors development, storage in open containers must be avoided and a short storage in cold rooms (7-10 days) is to be preferred. 2021 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chem. Industry.

Journal of the Science of Food and Agriculture published new progress about Alcohols Role: BSU (Biological Study, Unclassified), PRP (Properties), BIOL (Biological Study). 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

Park, Ho Young published the artcileProperties of bioliquids and their impacts on combustion and boiler operation, Quality Control of 110-42-9, the main research area is bioliquid combustion boiler operation property.

This study reports the results of a detailed anal. of 203 samples of bioliquid used as a substitute for heavy fuel oil in oil-fired power plants. Bioliquid is a mixture of various vegetable oils, animal fats and its byproducts. The heating value of bioliquid is approx. the same as that of heavy fuel oil; however, bioliquid has significantly less N and S components and exhibits better combustion reactivity. For a com. electricity generation, demonstration tests firing bioliquid in 75, 90, and 100 MW oil-fired boilers were conducted, and the results were compared with those obtained by firing heavy fuel oil. Further, the impacts of bioliquid fuel characteristics on combustion and boiler operation were also investigated. During the bioliquid firing, the heat absorption in the furnace decreased and the furnace exit gas temperature increased in comparison to the heavy fuel oil firing. No serious problems occurred in the boiler operation, and NOx and SOx emissions remarkably decreased. With minor modifications on the fuel transfer system and atomization devices, bioliquid could successfully replace heavy fuel oil in the existing oil-fired boilers. The limited values for 18 fuel properties of bioliquid are suggested by considering the stable boiler operation and environmental safety.

Energy (Oxford, United Kingdom) published new progress about Boilers, oil-fired. 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