Category: 123-29-5

Radulovic, Niko S. published the artcileImmunomodulatory Constituents of Conocephalum conicum (Snake Liverwort) and the Relationship of Isolepidozenes to Germacranes and Humulanes, COA of Formula: C11H22O2, the main research area is immunomodulatory Conocephalum isolepidozene germacrane humulane.

Structural elucidation of three new sesquiterpenoids, namely, (1Z,4E)-lepidoza-1(10),4-dien-14-ol (I), rel-(1(10)Z,4S,5E,7R)-germacra-1(10),6 diene-11,14-diol (2), and rel-(1(10)Z,4S,5E,7R)-humula-1(10),5-diene-7,14-diol (3), isolated from the liverwort Conocephalum conicum, was accomplished by a combination of extensive NMR experiments, 1H NMR simulation, and other means. Addnl., the change of the identity of bicyclogermacren-14-al, previously reported as a C. conicum constituent, to isolepidozen-14-al is proposed. Compounds 2 and 3 appear to be related to I via hydration involving a shared intermediate, a substituted cyclopropylmethyl cation, formed by a highly regio- and stereoselective protonation of I, followed by a stereospecific fission of the three-membered ring. In other words, an isolepidozene derivative might be a branchpoint to humulanes and germacranes; this transformation could be of, up to now, unknown, biosynthetic and/or synthetic relevance. Multivariate statistical anal. of the compositional data of C. conicum extract constituents was used to probe the hypothesized biochem. relations. The immunomodulatory effect of I-3 and conocephalenol (4) was evaluated in an in vitro model on both nonstimulated and mitogen-stimulated rat splenocytes. The compounds displayed varying degrees of cytotoxicity to nonstimulated splenocytes, whereas 2 and 3 were found to exert immunosuppressive effects on Con A-stimulated splenocytes while not being cytotoxic at the same concentrations

Journal of Natural Products published new progress about Conocephalum conicum. 123-29-5 belongs to class esters-buliding-blocks, name is Ethyl nonanoate, and the molecular formula is C11H22O2, COA of Formula: C11H22O2.

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

Wen, Rongxin published the artcileThe potential correlations between the fungal communities and volatile compounds of traditional dry sausages from Northeast China, Safety of Ethyl nonanoate, the main research area is volatile compound fungal community traditional dry sausage Northeast China; Correlation analysis; Fungal community; Traditional dry sausage; Volatile compound.

The fungal communities and volatile compounds of traditional dry sausages collected from five different regions in Northeast China, including Harbin (HRB), Daqing (DQ), Suihua (SH), Hegang (HG) and Mudanjiang (MDJ) were investigated in this study. The results revealed clear differences among the fungal community structures of the sausages. Aspergillus pseudoglaucus, Debaryomyces hansenii, and Trichosporon asahii were found to be the predominant species in the sausages from HRB, HG, and MDJ, resp. Candida zeylanoides was the predominant species in the sausage from DQ and SH. Addnl., 88 volatile compounds were identified in all sausages, of which 31 volatile compounds were the most important flavor contributors (odor activity value > 1). Potential correlation anal. revealed that 8 fungi (D. hansenii, C. zeylanoides, T. asahii, A. pseudoglaucus, Aspergillus sydowii, Penicillium expansum, A. alternata, and Alternaria tenuissima) showed significant pos. correlations with � key volatile compounds Among these fungi, D. hansenii was regarded as a core functional fungus responsible for the formation of the volatile compounds, given its strong connection with the highest number of key volatile compounds These results provide detailed insight into the fungal communities of traditional dry sausages and a deeper understanding of the contribution of these fungi to sausage flavor.

Food Microbiology published new progress about Alternaria alternata. 123-29-5 belongs to class esters-buliding-blocks, name is Ethyl nonanoate, and the molecular formula is C11H22O2, Safety of Ethyl nonanoate.

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

Huang, Zijun published the artcileBifunctional ligand enabled selective alkoxycarbonylation of aliphatic alkenes, Quality Control of 123-29-5, the main research area is branched ester preparation regioselective; alkene alc Markovnikov alkoxycarbonylation carbazole derived phosphine ligand catalyst.

Carbazole derived phosphine ligands containing pyridine moiety were designed and prepared It allows the challenging Pd-catalyzed Markovnikov-selective alkoxycarbonylation of aliphatic alkenes to give the branched ester products (28 examples; 51-97% branch selectivity). Preliminary mechanistic studies support that the bridging bromide between Pd and Mn centers is crucial for the enhancement of regioselectivity.

Journal of Catalysis published new progress about Alcohols Role: RCT (Reactant), RACT (Reactant or Reagent). 123-29-5 belongs to class esters-buliding-blocks, name is Ethyl nonanoate, and the molecular formula is C11H22O2, Quality Control of 123-29-5.

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

Deng, Zhixin published the artcileLigand-enabled palladium-catalyzed hydroesterification of vinyl arenes with high linear selectivity to access 3-arylpropanoate esters, Safety of Ethyl nonanoate, the main research area is arylpropanoate ester preparation regioselective; vinyl arene carbon monoxide alc hydroesterification palladium catalyst regioselective.

Palladium-catalyzed linear-selective hydroesterification of vinyl arenes with alcs. enabled by diphosphine ligands derived from bis[2-(diphenylphosphino)ethyl]amides has been developed. A variety of 3-arylpropanoate esters were obtained in high yields and regioselectivity. The robustness of this methodol. was further demonstrated by the efficient gram-scale synthesis of the Et 3-phenylpropanoate as a precursor to hydrocinnamic acid.

Chemical Communications (Cambridge, United Kingdom) published new progress about Alcohols Role: RCT (Reactant), RACT (Reactant or Reagent). 123-29-5 belongs to class esters-buliding-blocks, name is Ethyl nonanoate, and the molecular formula is C11H22O2, Safety of Ethyl nonanoate.

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

Ianni, Andrea published the artcileZinc supplementation of lactating dairy cows: effects on chemical-nutritional quality and volatile profile of Caciocavallo cheese, Safety of Ethyl nonanoate, the main research area is lactation cheese chem nutritional quality zinc feeding experiment; Caciocavallo Cheese; Friesian Cow; Lipid Peroxidation; Lipid Profile; Volatile Compound; Zinc Oxide.

Effect of dietary zinc supplementation of Friesian cows on chem.-nutritional and aromatic properties of Caciocavallo cheese after 7 days (C7) and 120 days (C120) of ripening. The control group (CG) was fed with a conventional complete diet, while the exptl. group (zinc group, ZG) received a daily zinc supplementation of 60 mg for kg of dry complete feed. During the exptl. period, the milk yield was monitored and samples of milk and caciocavallo cheese were collected and analyzed for chem.-nutritional composition and aromatic profile. The enrichment of dairy cows diet with zinc, did not influence milk yield and composition, however a marked reduction of somatic cell count was evidenced. Both in milk and cheese the ZG samples were characterized by a lower concentration of satured fatty acids and an increase in oleic, vaccenic and rumenic acids. The aromatic profile of dairy products was also pos. affected by dietary zinc intake, with an increase in concentration of carboxylic acids, esters and lactones. The present results suggest a pos. role of dietary zinc intake in improving the quality of bovine milk and related cheese, in particular for the increase in concentration of bioactive fatty acids such as rumenic acid. The changes evidenced in cheese through the anal. of the volatile profile, would be consistent with the development of interesting organoleptic properties, although further evaluations should be performed to confirm the consumer acceptability of these changes.

Asian-Australasian Journal of Animal Sciences published new progress about Cheese (Caciocavallo). 123-29-5 belongs to class esters-buliding-blocks, name is Ethyl nonanoate, and the molecular formula is C11H22O2, Safety of Ethyl nonanoate.

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

Zhang, Jiang published the artcileCharacterization of key aroma compounds in melon spirits using the sensomics concept, Safety of Ethyl nonanoate, the main research area is aroma melon spirit sensomics.

Processing melon into spirits has important environmental and economic value. However, the flavor of melon spirits is undesirable and has yet to be studied. In this study, a combination of odor activity value, gas chromatog.-olfactometry detection frequency anal., aroma reconstitution, and omission tests showed that key aroma compounds (Group 1), including 3,6-nonadien-1-ol and 3-nonen-1-ol, were responsible for the undesirable green and fatty aromas of melon spirits. Meanwhile, the desirable fruity and floral aromas were provided by Group 2 compounds, which included isoamyl acetate and (E)-damascenone. Omission tests of Group 1 and Group 2 compounds showed that, similar to the fruit and floral aromas, the green and fatty aromas were important components of melon spirit flavor. Furthermore, adding Group 2 compounds to the spirits inhibited green and fatty flavours, improved the fruit and floral aromas, and enhanced the sensory evaluation of melon spirits. This study provides a basis for improving the production process and aroma of melon spirits.

LWT–Food Science and Technology published new progress about Cucumis melo (spirit). 123-29-5 belongs to class esters-buliding-blocks, name is Ethyl nonanoate, and the molecular formula is C11H22O2, Safety of Ethyl nonanoate.

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

Sanchez, Carlos published the artcileProfiling of Organic Compounds in Bioethanol Samples of Different Nature and the Related Fractions, Computed Properties of 123-29-5, the main research area is bioethanol VOC gas chromatog mass spectrometry flame ionization detection.

Forty-one bioethanol real samples and related fractions, together with a biobutanol sample, have been analyzed with gas chromatog. coupled to either mass spectrometry (GC-MS) or flame ionization detection (GC-FID). Bioethanol with different water contents, samples originated from several sources of biomass, first- as well as second-generation specimens, distillation fractions, samples stocked in containers made of four different materials, and, finally, a biobutanol sample have been analyzed. The number of the compounds found through GC-MS has been 130, including alcs., aldehydes, ketones, esters, ethers, nitrogen compounds, organic acids, furane derivates as well as other species (e.g., limonene). Afterward, a quant. determination of major components of bioethanol has been carried out. The achieved results have revealed that, besides ethanol and, in some cases, water, species such as acetaldehyde, methanol, and higher alcs., as well as 1,1-diethoxyethane, may be present at concentrations above 500 mg L-1. While the source of bioethanol (nature of the raw material, ethanol generation, or water content) has a direct impact on its volatile organic compound (VOC) profile, the material of the container where the biofuel has been stored does not play a significant role. Finally, the results have demonstrated that, for a given production process, different distillation fractions contain unequal VOC profiles.

ACS Omega published new progress about Alcohols Role: OCU (Occurrence, Unclassified), OCCU (Occurrence). 123-29-5 belongs to class esters-buliding-blocks, name is Ethyl nonanoate, and the molecular formula is C11H22O2, Computed Properties of 123-29-5.

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

Baky, Mostafa H. published the artcileMetabolome-Based Analysis of Herbal Cough Preparations Via Headspace Solid-Phase Microextraction GC/MS and Multivariate Data Analyses: A Prospect for Its Essential Oil Equivalency, HPLC of Formula: 123-29-5, the main research area is metabolome analysis herbal cough headspace microextraction GC MS.

Liquid cough preparations containing essential oils pose a challenge for isolating and quantifying their volatile components from such a complex matrix enriched with nonvolatile constituents and excipients. This study aims to develop a strategy integrating QC anal. of seven natural cough preparations in the Egyptian market and to assess volatile variation among the preparations using multivariate data analyses. Cough preparations were subjected to headspace solid-phase microextraction (HS-SPME) for determination of their essential oil composition mediating for their actions and to assess volatile differences among them. HS-SPME is a suitable technique for sample preparation that allows for extraction and enrichment of volatiles from complex nonvolatile matrixes and their direct desorption into the gas chromatog. anal. system. A total of 88 volatile components were identified belonging to seven classes, viz. aromatics, aliphatic hydrocarbons, mono/sesquiterpene hydrocarbons, and oxygenated mono/sesquiterpenes. Oxygenated monoterpenes, viz., menthol, cineole, thymol, and (E)-anethole, were the major volatiles identified in five cough preparations (79.5-98.6%), whereas aromatics, chiefly cinnamate derivatives, constituted the second class amounting for 50.5 and 27.4% in the other two cough preparations Meaningful results regarding the products’ efficacy and safety were extrapolated from this anal. procedure, where artificial preservatives (parabens) were detected in five cough preparations This study established an efficient strategy for exploring volatile profiling and defining different markers among the different cough preparations Addnl., authenticity of listed herbal ingredients in the cough preparations was also confirmed in certain preparations, while other formulations failed to show representative volatile components. Volatile variation among preparations was assessed using multivariate data analyses in an attempt to prioritize cough preparations for usage, suggesting the preference of Bronchicum and Babetone among examined cough products.

ACS Omega published new progress about Aliphatic hydrocarbons Role: ANT (Analyte), ANST (Analytical Study). 123-29-5 belongs to class esters-buliding-blocks, name is Ethyl nonanoate, and the molecular formula is C11H22O2, HPLC of Formula: 123-29-5.

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

Tekguel, Yeliz published the artcileDetermination of the effect of wheat germ on the mineral and fatty acid composition and aroma compounds of tarhana: A traditional fermented cereal food, Related Products of esters-buliding-blocks, the main research area is tarhana wheat germ mineral fatty acid aroma compound detection.

In this study, to supply to the trend toward natural and functional foods that do not include synthetic products, the wheat germ which exists as waste in nature was added to tarhana formulation in order to increase the nutritional content of tarhana. Wheat germ supplemented tarhana samples met the recommended dietary allowances of iron. A total of 63 compounds were detected and quantitated in all samples. Terpenes and terpenoids were observed as the dominant compound group. The addition of wheat germ to tarhana dough resulted in an increase in the number of volatile compounds The most abundant odor-active compounds were acetic acid and 2-acetylpyyrole.The mineral (Mg, K, Zn, Mn), fatty acid (undecaenoic, linoleic, gondoic acid, and α-linolenic), oil, acid (propanoic and hexanoic), alc. (linalool, benzyl, phenylethyl), aldehyde ((E)-2-heptenal, nonanal, 5-methyl-2-phenyl-2-hexenal), ketone (3-Octen-2-one), terpene (junipene, citronellol, trans-Carveol) contents of tarhana samples can be increased by addition of the wheat germ. The wheat germ which exists as waste in nature and contains a high amount of essential amino acids, proteins, fatty acids, minerals, dietary fiber, vitamins, etc. Wheat germ can be added to cereal-based food formulation such as tarhana in order to supply to the trend toward natural and functional foods that do not include synthetic products. Tarhana (basically made from yogurt, wheat flour, herbs, tomato, pepper, onion, etc.) which is a traditional fermented dry Turkish soup is rich in vitamins, minerals, and proteins. Wheat germ based-fermented products such as Tarhana may be considered promising new functional foods due to its probiotic effects in order to expand the market due to the increasing trend toward functional foods.

Journal of Food Processing and Preservation published new progress about Acids Role: ANT (Analyte), PRP (Properties), ANST (Analytical Study). 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

Liu, Fang-Jing published the artcileGreen and efficient two-step degradation approach for converting Powder River Basin coal into fuels/chemicals and insights into their chemical compositions, Computed Properties of 123-29-5, the main research area is carbon dioxide ethanol degradation powder river basin coal.

A green and efficient two-step degradation approach, including supercritical CO2/ethanol degradation and oxidation in aqueous hydrogen peroxide solution, was reported to convert Powder River Basin coal into fuels/chems. In total, 43.5 wt% liquid tar and 23.3 wt% oxidation products were obtained from the two-step degradation The liquid tar was facilely separated into light oil and asphaltene, with yields of 27.3 wt% and 16.5 wt%, resp. The first-step degradation has high energy recovery (50%) and low energy consumption ratio (min. 0.17), indicating an energetic net energy gain. The light oil is a promising feedstock as clean liquid fuels due to its high H/C ratio (1.58) and heating value (34.56 MJ/kg). The asphaltene with lower H/C and O/C ratios but higher aromaticity (0.83) could be a good precursor for carbon materials. The light oil can be upgraded into clean liquid fuels by hydrodeoxygenation or used as feedstock for producing oxygenated chems. because it is rich in oxygenated components. Phenols and aliphatic esters account for 74.2% of the volatile components in the light oil. High resolution mass spectrometric anal. revealed that the O1-O4 class species are dominant components with relative abundance of 71% in the light oil. Valuable carboxylic acids with total yields of 19.7 wt%, especially alkanedioic and alkanetricarboxylic acids, were produced from oxidation of the scCO2/ethanol degradation residue, which is a promising second-step degradation to utilize the residue. This study provides an efficient coal conversion processes for producing fuels/chems. and reducing energy consumption and environmental impact.

Applied Energy published new progress about Asphaltenes Role: PUR (Purification or Recovery), PREP (Preparation). 123-29-5 belongs to class esters-buliding-blocks, name is Ethyl nonanoate, and the molecular formula is C11H22O2, Computed Properties of 123-29-5.

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