Tag: M.W=350-400

Cheng, Fang published the artcileGarlic Allelochemical Diallyl Disulfide Alleviates Autotoxicity in the Root Exudates Caused by Long-Term Continuous Cropping of Tomato, Quality Control of 929-77-1, the main research area is garlic allelochem diallyl disulfide autotoxicity root exudate tomato; autotoxicity; diallyl disulfide; garlic; growth promotion; tomato root exudates.

Continuous cropping obstacles seriously affect the sustainable production of tomatoes (Solanum lycopersicum L.). Researchers have found that intercropping with garlic (Allium sativum L.) could alleviate tomato continuous cropping obstacles. Diallyl disulfide (DADS) is the main allelochem. in garlic. However, the mechanism of DADS in alleviating tomato continuous cropping obstacles is still unknown. In this research, aqueous extracts of tomato continuous cropping soil were used to simulate the continuous cropping condition of tomato. Our results showed that DADS increased root activity and chlorophyll content, improved the activity of antioxidant enzymes (SOD, POD and PAL) and the metabolism of non-enzymic antioxidants (GSH and GSSG) in tomato plants. DADS treatment reduced the content of fatty acid esters in tomato root exudates (e.g., palmitate Me ester, palmitoleic acid Me ester, oleic acid Me ester) and increased the level of substances such as di-Bu phthalate and 2,2′-methylenebis(6-tert-butyl-4-methylphenol). The higher concentrations of palmitate Me ester inhibited tomato hypocotyl growth, while oleic acid Me ester inhibited tomato root growth. Moreover, the application of DADS significantly inhibited the secretion of these esters in the root exudates. Therefore, it suggests that DADS may increase tomato resistance and promote tomato plant growth by increasing root activity, photosynthetic capacity and development to reduce autotoxicity of tomato.

Journal of Agricultural and Food Chemistry published new progress about Allelochemicals Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, Quality Control of 929-77-1.

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

Ferreira de Mello, Bruna Tais published the artcileSequential process for obtaining methyl esters and triacetin from crambe oil using pressurized methyl acetate, HPLC of Formula: 929-77-1, the main research area is Crambe oil triglycerides triacetin methyl esters.

The aim of this study was to investigate the application of a sequential process for the production of fatty acid Me esters (FAME) and triacetin (TA) from crambe seeds using Me acetate (MA) under pressurized conditions. In this process, Me acetate acts as an extraction solvent and an acyl acceptor for the conversion of the oil to the products of interest. According to the data obtained, increasing the pressure to 20 MPa resulted in higher FAME yields (YFAME) and TA contents for both oils tested. In the reaction with the PLE mixture an increase in temperature favored the formation of FAME and a yield of 66.49 % was achieved at 375 °C after 15 min. The TA content was highest at 325 °C and 5.01 wt% of this coproduct was obtained after 35 min. At the other temperatures, an increase in the TA content was not observed after 15 min. The results obtained in the reactions with CO demonstrated lower than those for the oil obtained by PLE and the reduction of polyunsaturated esters was more evident in the reaction products of this oil. At 375 °C, the increase in residence time provided higher conversion of triglycerides and free fatty acids, as well as higher consumption of intermediate reaction compounds, and enhanced levels of thermal degradation Thus, the results point to the benefits of using the sequential process to obtain FAME and TA in terms of yield and reduction of the decomposed fraction.

Industrial Crops and Products published new progress about Crambe abyssinica. 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, HPLC of Formula: 929-77-1.

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

Zhao, Yuechao published the artcileEffect of chemical component characteristics of waste cooking oil on physicochemical properties of aging asphalt, Category: esters-buliding-blocks, the main research area is waste cooking oil aging asphalt pavement physicochem property.

The combined utilization of waste cooking oil (WCO) and reclaimed asphalt pavement (RAP) is attractive for economic, environmental, and energy benefits. However, the quality stability of WCO is poor due to its wide sources, which limits the further development of WCO recycled RAP. In this study, the classification method of WCO was proposed according to the mol. weight difference of its chem. components, and WCO was classified into three categories including light components (LC), intermediate components (IC), and heavy components (HC). Meanwhile, the characteristics of these three WCO components and their effects on the physicochem. properties of aging asphalt were investigated comprehensively. The exptl. results show that the softening ability of different components of WCO on aging asphalt is mainly determined by their mol. weight and thermal stability. Furthermore, LC rich in Me palmitate is easy solidification and volume expansion at the low temperature, which is not conducive to the repair of low-temperature ductility of aged asphalt. The chem. property analyses of recycled asphalt indicate that there is no chem. reaction between the components of WCO and the aging asphalt. The phys. dilution ability of WCO components on carbonyl index, sulfoxide index, and high mol. weight substances of aging asphalt is pos. correlated with their mol. weight In addition, HC contains chem. substances similar in composition to asphalt, which has the most obvious effect on the colloidal structure of aging asphalt. Overall, the classification method for WCO and related findings found in this study provides a reference for ensuring the quality stability of WCO and its industrial application in the recycling of aged asphalt.

Construction and Building Materials published new progress about Asphaltenes Role: PEP (Physical, Engineering or Chemical Process), PRP (Properties), PROC (Process). 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, Category: esters-buliding-blocks.

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

Al-layla, Neam m. t. published the artcileLiquid bio-fuels and carbon adsorbents production via pyrolysis of non-edible feedstock, Computed Properties of 929-77-1, the main research area is biofuel adsorbent pyrolysis activated carbon morphol.

The slow pyrolysis of milk thistle (Silybum marianum L.) seeds (MTS) in a lab-scale batch reactor to investigate the influence of heating rate, temperature, contact period, and particle size on the yields of bio-oil (BO) and bio-char (BC) was presented for the first time. The maximum yield of BO (49.55 ± 2.50%) was obtained at a pyrolysis temperature of 475°C for 60 min using a 0.25 mm MTS particle size at 20°C/min heating rate. The chem. composition of BO from MTS was identified by FTIR, 1H NMR, and GC-MS techniques. Following the FTIR outcomes, aldehydes, alcs., phenols, acids, and alkanes are present in the BO . Also, results from 1HNMR spectrum indicated that the percentage of the aliphatic compounds in the as-synthesized BO was greater than that of the aromatic compounds The GC-MS anal. exhibited that the MTS derived BO is rich in higher acids (38.64%), higher esters (21.30%), and hydrocarbons (11.39%). The elemental anal. consequences revealed that the attained BO possessed a higher carbon content and a lower oxygen content than its resp. MTS with a chem. formula of CH1.67 N0.025O0.10. Addnl., the BO owned a calorific value of 39.47 MJ/kg, close to that established for petro based liquid fuels and comparable to those of BOsamples declared in the literature. Besides, the physic-chem. properties of the MTS derived BO were close to those specified for conventional fossil fuels. Proximate anal., elemental composition, higher heating value, iodine number, surface area, and morphol. of the attained biochar were determined The ZnCl2 activation method was employed to synthesize activated carbon from the produced BC via the optimized procedure. An impregnation ratio of 1.5:1 ZnCl2:BC, 500°C, 60 min activation period, and 0.21 mm particle size were the best conditions to yield an activated carbon with 638.66 mg/g iodine number and 677.22 m2/g surface area. The FESEM results affirmed the mesoporosity of the attained activated carbon compared to the macroporosity of the pristineBC .

Journal of Analytical and Applied Pyrolysis published new progress about Adsorbents. 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, Computed Properties of 929-77-1.

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

Rong, Hao published the artcileTranscriptional profiling between yellow- and black-seeded Brassica napus reveals molecular modulations on flavonoid and fatty acid content, Recommanded Product: Methyl docosanoate, the main research area is Brassica transcription flavonoid fatty acid phenylpropanoid AIM1 KAT2.

Brassica napus is an important cash crop broadly grown for the vegetable and oil values. Yellow-seeded B. napus is preferred by breeders due to its improved oil and protein quality, less pigments and lignin compared with the black-seeded counterpart. This study compared the differences in flavonoid and fatty acid contents between yellow rapeseed from the progenies of B. napus-Sinapis alba somatic hybrids and the black-seeded counterpart using RNA-seq anal. Through HPLC-PDA-ESI(-)/MS2 anal., it was found that phenylpropanoids and flavonoids (i.e., isorhamnetin, epicatechin, kaempferol, and other derivatives) in yellow seed were significantly lower than those in black seed. The fatty acid (FA) content in yellow rapeseed was higher than that in black rapeseed due to the variation of C16:0, C18:0, C18:1, C18:2, and C18:3 contents. RNA-seq anal. of seeds at four and five weeks after flowering (WAF) indicated that differentially expressed genes (DEGs) between black and yellow rapeseeds were enriched in flavonoid and FA biosynthesis, including BnTT3, BnTT4, BnTT18, and BnFAD2. Also, genes related to FA biosynthesis, desaturation and elongation (FAD3, LEC1, FUS3, and LPAT2) in yellow seed were up-regulated compared to those in black seed, while genes involved in beta-oxidation cycle (AIM1 and KAT2) of yellow seed were down-regulated compared to those in black seed. The DEGs related to the variation of flavonoids, phenylpropanoids, and FAs would help improve the knowledge of yellow seed character in B. napus and promote rapeseed improvement.

Journal of Integrative Agriculture published new progress about Brassica napus (black seed). 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, Recommanded Product: Methyl docosanoate.

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

Banu, Shirin Akhter published the artcileDetermination of phytochemicals and chemical constituents of fixed oil from leaves of Eclipta prostrata, SDS of cas: 929-77-1, the main research area is Eclipta leaf extract oil alkaloid saponin flavonoid.

Eclipta prostrata is widely used as a medicinal plant belonging to the family of Asteraceae. It is generally used for the traditional medicine. The recent study attempts to evaluate the phytochems. and fatty acids composition from leaves of E. prostrata. The presence of some phytochems. like alkaloids, saponins and flavonoids expose the medicinal function of the plant encountered in its therapeutic values. The fatty acid compositions of the petroleum ether extract of leaves of this plant were identified by Gas Chromatog.-Mass Spectrophotometer. Nine compounds were found and the major constituent was Me palmitate (66.93%).

World Journal of Pharmacy and Pharmaceutical Sciences published new progress about Eclipta prostrata. 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, SDS of cas: 929-77-1.

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

Zuo, Lei published the artcileExperimental investigation on combustion and (regulated and unregulated) emissions performance of a common-rail diesel engine using partially hydrogenated biodiesel-ethanol-diesel ternary blend, Formula: C23H46O2, the main research area is hydrogenated biodiesel ethanol diesel ternary blend emissions performance.

Partial hydrogenation can augment the oxidation stability for biodiesel, while its low temperature performance worsens and cetane number excessively increases. Blending ethanol can effectively reconcile it. Therewith partially hydrogenated biodiesel (PHB)-ethanol-diesel ternary blend was established in this study. The performances of combustion, regulated emissions and unregulated emissions of PHB-ethanol-diesel ternary blends and PHB-diesel binary blends were investigated on a turbocharged, 4-cylinder common rail diesel engine operated at various loads of 1800 rpm. It was revealed that no obvious variations on equivalent specific fuel consumptions (ESFCs) occurred between binary blends and ternary blends. Compared to diesel, binary blends possessed lower maximum of cylinder pressure (CP) and heat release rate (HRR) in the main combustion stage, whereas ternary blends exhibited the opposite phenomenon. For the regulated emissions, ternary blends generated higher hydrocarbon (HC) and carbon monoxide (CO) emissions but lower smoke emissions, compared to binary blends. For the unregulated emissions, the higher sulfur dioxide (SO2), formaldehyde (HCHO) and carbon dioxide (CO2) emissions, and lower ethylene (C2H4) and ammonia (NH3) emissions were exhausted from ternary blends in comparison to binary blends. Addnl., the law of nitrogen oxides (NOx) and aromatic hydrocarbon (AHC) emissions between ternary blends and binary blends depended on engine load.

Renewable Energy published new progress about Biodiesel fuel (cottonseed). 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, Formula: C23H46O2.

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

Hamed, Manal A. published the artcileBioactive compounds and therapeutic role of Brassica oleracea L. seeds in rheumatoid arthritis rats via regulating inflammatory signalling pathways and antagonizing interleukin-1 receptor action, Product Details of C23H46O2, the main research area is Brassica seed antiinflammatory interleukin1R rheumatoid arthritis; Brassica oleracea L.; IL-1 receptor antagonist; arthritis index; oxidative stress; phenolic compounds; rheumatoid arthritis.

Rheumatoid arthritis (RA) is a chronic, progressive autoimmune disease characterized by aggressive and systematic polyarthritis. The present study aimed to isolate and identify the phenolic constituents in Brassica oleracea L. (Brassicaceae) seeds methanolic extract and evaluates its effect against rheumatoid arthritis in rats referring to the new therapy; interleukin-1 receptor antagonist (IL-1RA). The GC/MS profiling of the plant was determined Arthritis induction was done using complete Freund′s adjuvant. Arthritis severity was assessed by percentage of edema and arthritis index. IL-1 receptor type I gene expression, interleukin-1β (IL-1β), oxidative stress markers, protein content, inflammatory mediators, prostaglandin-E2 (PGE2), genetic abnormalities and the histopathol. features of ankle joint were evaluated. For the first time twelve phenolic compounds had been isolated from the seeds extract Treatment with extract and IL-1RA improved the tested parameters by variable degrees. RA is an irreversible disease, where its severity increases with the time of induction. Brassica oleracea L. seeds extract is considered as a promising anti-arthritis agent. IL-1 RA may be considered as an unusual therapeutic agent for RA disease. More studies are needed to consider the seeds extract as a nutraceutical agent and to recommend IL-1RA as a new RA drug.

Biomarkers published new progress about Anti-inflammatory agents. 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, Product Details of C23H46O2.

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

Potter, Colin M. published the artcileQuantitative and qualitative analysis of edible oils using HRAM MS with an atmospheric pressure chemical ionisation (APCI) source, Category: esters-buliding-blocks, the main research area is edible oil atm pressure chem ionisation.

Fatty acids represent major components of cell membranes, serve as energy sources, modulate gene transcription and cell signalling and act as cytokine precursors. It is increasingly apparent that dietary fatty acids influence these vital functions and affect human health. Consequently, anal. techniques are required to identify and quantify the suite of fatty acids present in food and human tissues. Advances in mass spectrometry (MS) offer new opportunities to profile and quantify fatty acids in biol. samples. Our aim was to demonstrate the use of GC- atm. pressure chem. ionisation (APCI)-ion mobility spectrometry (IMS)-TOF-MS to provide highly specific and sensitive quantification of known fatty acids plus a comprehensive overview of all the eluted analytes. Ionisation was achieved using an APCI source. This new approach was demonstrated on a range of com. edible oils. Compared to standard GC techniques using flame ionisation detection (FID) or a single quadrupole MS with electron ionisation, GC-APCI-IMS-TOF-MS greatly increased compound selectivity and specificity, leading to greatly enhanced confidence in fatty acid Me esters (FAME) identification and quantification. Our approach also added the fingerprint of high-resolution accurate mass (HRAM) discovery data, with collision cross section (CCS) values, relating to many other analytes. This method can be readily applied to study food provenance, food fraud and to identify fatty acid related illnesses.

Journal of Food Composition and Analysis published new progress about Edible oils Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, Category: esters-buliding-blocks.

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

Abubaker, Mohamed Aamer published the artcileGas chromatography-mass spectrum and fourier-transform infrared spectroscopy analysis of fixed oil from Sudanese Ziziphus spina Christi fruits pulp, Product Details of C23H46O2, the main research area is Ziziphus spina Christi fixed oil GC MS FTIR analysis.

The study was carried out in reason of investigating the phytochem. constituents that could be present in the Ziziphus spina Christi Sudanese plant, by using two different anal. methods such as the Gas Chromatog.-Mass spectrum (GC-MS) and the Fourier-transform IR spectroscopy (FTIR). The Z. spina Christi Fruit pulp oil was extracted with four solvents methanol, petroleum ether, acetone, and iso-Pr alc., using Soxhlet apparatus, The Gas Chromatog.-Mass Spectrum (GC-MS) was carried out to analyze the methanolic fruit pulp oil extract, the results indicated to the presence of thirty-two phytochem. compounds Ten of them are majors, namely9-Octadecenoic acid compounds, Me ester, (E) – (17.07%), 7-Oxabicyclo[4.1.0]heptane,1-methyl-4-(2-methyloxiranyl)- (16.43%), 9-Octadecenoic acid (Z) -, Me ester (10.6%), Hexadecanoic acid, Me ester (8.78%), Me stearate (6.71%), Docosanoic acid, Me ester (4.22%), cis-13-Eicosenoic acid, Me ester (3.43%)%, Me 18-methylnonadecanoate (2.98%), squalene (2.38%), 9-tricosine, (Z) – (2.4%). While the Fourier-transform IR spectroscopy (FTIR) anal. was carried out for (methanol, petroleum ether, acetone, and iso-Pr alc.) fruit pulp oil extract the result showed the presence of many active functional groups such as alcs., phenols, alkanes, alkenes, carbonyls, and Carboxylic acids and aromatic compounds in the extracts with different peak types and correspondences. The GC-MS and FTIR anal. showed the availability of bioactive compounds in the Ziziphus spina fruits pulp oil extracts, and these ingredients may be responsible for pharmaceutical value and could lead to the discovery a novel drugs.

Progress in Chemical and Biochemical Research published new progress about Aliphatic compounds Role: ANT (Analyte), BSU (Biological Study, Unclassified), ANST (Analytical Study), BIOL (Biological Study). 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, Product Details of C23H46O2.

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