Category: 1731-94-8

Optimization of oil yield of Phaleria macrocarpa seed using response surface methodology and its fatty acids constituents was written by Azmir, J.;Zaidul, I. S. M.;Rahman, M. M.;Sharif, K. M.;Sahena, F.;Jahurul, M. H. A.;Mohamed, A.. And the article was included in Industrial Crops and Products in 2014.Application In Synthesis of Methyl nonadecanoate The following contents are mentioned in the article:

Phaleria macrocarpa (Mahkota dewa) seed was examined to determine the optimal conditions of oil yield by solvent extraction method using n-hexane as extracting solvent. Response surface methodol. (RSM) was employed to describe explicitly the influence of extraction time, temperature and solvent-to-feed ratio on the yield of oil using central composite design (CCD). The linear, quadratic and interaction terms of the studied variables have significant (P < 0.05) effect on the oil yield. The temperature of 72 °C, extraction time of 8.4 h and solvent-to-feed ratio of 10.9 mL/g were the optimal conditions for seed oil extraction The maximum oil yield was 55.32 g/100 g dry weight under these optimal conditions. Main chem. constituents of oil were determined by Gas chromatog.-mass spectroscopy (GC-MS) and Fourier transform IR spectroscopy (FTIR). Twelve components were identified by GC-MS anal. after formation of fatty acid Me ester (FAME). Total saturated fatty acids were 19.38% whereas monounsaturated fatty acids and polyunsaturated fatty acids were 44.23% and 36.38%, resp. Oleic acid, 18:1 (43.56%) and linoleic acid, 18:2 (36.25%) were the main fatty acid constituents of Mahkota dewa seed oil. The quantity of unsaturated fatty acids was higher than saturated fatty acids in P. macrocarpa seed oil. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8Application In Synthesis of Methyl nonadecanoate).

Methyl nonadecanoate (cas: 1731-94-8) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. Because of their lack of hydrogen-bond-donating ability, esters do not self-associate. Consequently, esters are more volatile than carboxylic acids of similar molecular weight.Application In Synthesis of Methyl nonadecanoate

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

Comparative chemical and biological study of roots and aerial parts of Halocnemum strobilaceum growing wildly in Egypt was written by Abdel Razek, M. M. M.;Moussa, A. Y.;El-Shanawany, M. A.;Singab, A. B.. And the article was included in Journal of Pharmaceutical Sciences and Research in 2019.Safety of Methyl nonadecanoate The following contents are mentioned in the article:

Halocnemum strobilaceum is a terrestrial halophytic plant with reported folk medicinal uses. RAPD-PCR was used to amplify the DNA fragments where 83 amplified DNA fragments result from the RAPD-PCR, and primer P2 was the best sequence dominating them. GC/MS anal. identified the components of both the root and the aerial parts hexane extracts as hexadecanoic acid Me ester (38.88%) and 9-octadecenoic acid (Z)- Me ester (23.25%) in the former and dodecane (9.83%), heptadecane (8.26%) and octadecane (8.2%) in the latter. MTT cell viability assay was carried out on three different human cell lines, MCF-7, Hep-G2 and Caco-2, to evaluate the cytotoxic potential of H. strobilaceum; furthermore, the cup well diffusion and serial dilution methods were utilized to screen for the anti-infective potential. Marked activity was recorded for the aerial part against the MCF-7 cell line after 24h, 48h and 72h, with IC50 values of 227.40, 184.45 and 135.68 μg/mL, resp., and moderate cell killing effect was manifested by the root part with IC50 values of 341.98, 308.77 and 218.99 μg/mL. H. strobilaceum root extract exhibits significant effect against Bacillus subtilis and Staphylococcus aureus, with MIC values of 6.25 and 50 μg/mL resp. H. strobilaceum is a promising candidate for further future biol. studies. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8Safety of Methyl nonadecanoate).

Methyl nonadecanoate (cas: 1731-94-8) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Safety of Methyl nonadecanoate

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

Continuous biodiesel production in a helicoidal reactor using ultrasound-assisted transesterification reaction of waste cooking oil was written by Delavari, Armin;Halek, Farah;Amini, Mohammad. And the article was included in Clean Technologies and Environmental Policy in 2015.Formula: C20H40O2 The following contents are mentioned in the article:

Designing of a continuous biodiesel production system from waste cooking oil with ultrasonic homogenizer assistant through transesterification reaction was studied. Through some pre-tests based on cavitation phenomenon to accelerate the transesterification reaction, two types of reactors (batch and continuous) were used. GC-MS results showed the total content of 94.2 % of Me esters derived from different fatty acids formed in a batch reactor using a magnetic stirrer and an elec. heater. These results were then compared to those of two ultrasonic homogenizers with low and high capacities of 400 and 1,500 W, which tested successfully under mild conditions. The results indicated the advantages of using ultrasonic homogenizer. The continuous system consisted of a 1,500 W ultrasonic homogenizer and glass helicoidal reactor with a tube length of 20 m. This set-up was kept submerged in a hot water bath. As a result, the reaction time decreased to 150 s, the methanol/oil molar ratio was 8.6 and the weight % of NaOH/oil was 0.5 %. After separation of undesired contents, the phys. and chem. characteristics of the final product were measured according to ASTM standard methods. Study of performance of the system also showed a significant improvement in yield of the reaction (90 %) compared to prior studies. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8Formula: C20H40O2).

Methyl nonadecanoate (cas: 1731-94-8) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.Formula: C20H40O2

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

Optimization of oil yield of Phaleria macrocarpa seed using response surface methodology and its fatty acids constituents was written by Azmir, J.;Zaidul, I. S. M.;Rahman, M. M.;Sharif, K. M.;Sahena, F.;Jahurul, M. H. A.;Mohamed, A.. And the article was included in Industrial Crops and Products in 2014.Application In Synthesis of Methyl nonadecanoate The following contents are mentioned in the article:

Phaleria macrocarpa (Mahkota dewa) seed was examined to determine the optimal conditions of oil yield by solvent extraction method using n-hexane as extracting solvent. Response surface methodol. (RSM) was employed to describe explicitly the influence of extraction time, temperature and solvent-to-feed ratio on the yield of oil using central composite design (CCD). The linear, quadratic and interaction terms of the studied variables have significant (P < 0.05) effect on the oil yield. The temperature of 72 °C, extraction time of 8.4 h and solvent-to-feed ratio of 10.9 mL/g were the optimal conditions for seed oil extraction The maximum oil yield was 55.32 g/100 g dry weight under these optimal conditions. Main chem. constituents of oil were determined by Gas chromatog.-mass spectroscopy (GC-MS) and Fourier transform IR spectroscopy (FTIR). Twelve components were identified by GC-MS anal. after formation of fatty acid Me ester (FAME). Total saturated fatty acids were 19.38% whereas monounsaturated fatty acids and polyunsaturated fatty acids were 44.23% and 36.38%, resp. Oleic acid, 18:1 (43.56%) and linoleic acid, 18:2 (36.25%) were the main fatty acid constituents of Mahkota dewa seed oil. The quantity of unsaturated fatty acids was higher than saturated fatty acids in P. macrocarpa seed oil. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8Application In Synthesis of Methyl nonadecanoate).

Methyl nonadecanoate (cas: 1731-94-8) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. Because of their lack of hydrogen-bond-donating ability, esters do not self-associate. Consequently, esters are more volatile than carboxylic acids of similar molecular weight.Application In Synthesis of Methyl nonadecanoate

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

Comparative chemical and biological study of roots and aerial parts of Halocnemum strobilaceum growing wildly in Egypt was written by Abdel Razek, M. M. M.;Moussa, A. Y.;El-Shanawany, M. A.;Singab, A. B.. And the article was included in Journal of Pharmaceutical Sciences and Research in 2019.Safety of Methyl nonadecanoate The following contents are mentioned in the article:

Halocnemum strobilaceum is a terrestrial halophytic plant with reported folk medicinal uses. RAPD-PCR was used to amplify the DNA fragments where 83 amplified DNA fragments result from the RAPD-PCR, and primer P2 was the best sequence dominating them. GC/MS anal. identified the components of both the root and the aerial parts hexane extracts as hexadecanoic acid Me ester (38.88%) and 9-octadecenoic acid (Z)- Me ester (23.25%) in the former and dodecane (9.83%), heptadecane (8.26%) and octadecane (8.2%) in the latter. MTT cell viability assay was carried out on three different human cell lines, MCF-7, Hep-G2 and Caco-2, to evaluate the cytotoxic potential of H. strobilaceum; furthermore, the cup well diffusion and serial dilution methods were utilized to screen for the anti-infective potential. Marked activity was recorded for the aerial part against the MCF-7 cell line after 24h, 48h and 72h, with IC50 values of 227.40, 184.45 and 135.68 μg/mL, resp., and moderate cell killing effect was manifested by the root part with IC50 values of 341.98, 308.77 and 218.99 μg/mL. H. strobilaceum root extract exhibits significant effect against Bacillus subtilis and Staphylococcus aureus, with MIC values of 6.25 and 50 μg/mL resp. H. strobilaceum is a promising candidate for further future biol. studies. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8Safety of Methyl nonadecanoate).

Methyl nonadecanoate (cas: 1731-94-8) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Safety of Methyl nonadecanoate

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

Structural characterization of the thermal extracts of lignite was written by Wang, Zhicai;Shui, Hengfu;Pan, Chunxiu;Li, Liang;Ren, Shibiao;Lei, Zhiping;Kang, Shigang;Wei, Cheng;Hu, Jingchen. And the article was included in Fuel Processing Technology in 2014.HPLC of Formula: 1731-94-8 The following contents are mentioned in the article:

Thermal extraction (TE) with nonspecific solvent at high temperature is a potential technol. to sep. organic materials from coal, especially low-rank coal such as lignite. In this paper, thermal extract (TES) of Xianfeng lignite (XL) in toluene/methanol (3:1, volume) mixed solvent at 300 °C was separated into different sub-fractions by the method of column chromatog. combined with Soxhlet extraction in THF (THF). These sub-fractions were characterized by element anal., FTIR, ¹H NMR and GC/MS. 78 compounds including C_12-30 higher aliphatic hydrocarbons (HAHs), aromatic hydrocarbons (AHs), C_17-27 fatty acid Me esters (FAMEs) and other heteroat. compounds were identified from the TES. As two groups of predominant components, HAHs and FAMEs are the intrinsic components in XL except for small amount of FAMEs produced by esterification and transesterification reactions in the TE process. Further, the mechanism of TE was also speculated by the characterization results of TES. As a result, the TE with nonspecific solvent at high temperature can not only improve the extract yield of organic materials, but also obtain chems. such as HAHs and FAMEs from lignite. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8HPLC of Formula: 1731-94-8).

Methyl nonadecanoate (cas: 1731-94-8) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.HPLC of Formula: 1731-94-8

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

Chromatographic efficiency of polar capillary columns applied for the analysis of fatty acid methyl esters by gas chromatography was written by Waktola, Habtewold D.;Mjos, Svein A.. And the article was included in Journal of Separation Science in 2018.Recommanded Product: Methyl nonadecanoate The following contents are mentioned in the article:

The chromatog. efficiency that could be achieved in temperature-programmed gas chromatog. was compared for four capillary columns that are typically applied for anal. of fatty acid Me esters (FAME). Three different carrier gases, hydrogen, helium and nitrogen, were applied. For each experiment, the carrier gas velocities and the temperature rates were varied with a full 9 × 3 design, with nine levels on the carrier gas velocity and temperature rates of 1, 2 or 3°/min. Response surface methodol. was used to create models of chromatog. efficiency as a function of temperature rate and carrier gas velocity. The chromatog. efficiency was defined as the inverse of peak widths measured in retention index units. The final results were standardized so that the efficiencies that could be achieved within a certain time frame, defined by the retention time of the last compound in the chromatogram, could be compared. There were clear differences in the efficiencies that could be achieved with the different columns and that the efficiency decreased with increasing polarity of the stationary phase. The differences can be explained by higher resistance to mass transfer in the stationary phase in the most polar columns. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8Recommanded Product: Methyl nonadecanoate).

Methyl nonadecanoate (cas: 1731-94-8) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Recommanded Product: Methyl nonadecanoate

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

Integrated extraction by percolation, distillation, and soxhlet extraction to separate bioactive and bioenergy compounds from spent coffee ground was written by Maimulyanti, Askal;Prihadi, Anton Restu. And the article was included in Rasayan Journal of Chemistry in 2022.Related Products of 1731-94-8 The following contents are mentioned in the article:

The spent coffee ground has potential compounds applied in food and bioenergy. In this study, an integrated extraction to sep. chem. compounds from the spent coffee ground was designed. Furthermore, the extraction apparatus was combined for percolation, distillation, and Soxhlet extraction The distillation technique produces flavored coffee, Soxhlet extraction separates coffee oil; while percolation produces the coffee extract Anal. of coffee aroma using distillation techniques obtained alpha furfuryl alc. (52.16%), Me pyrazine (15.63%), and 2.6-di-Me paradiazine (9.62%). Anal. of coffee extract using the percolation technique obtained antioxidant compounds with IC50 (56.61μg/mL), polyphenols (1.25 mg/g), caffeine (7.88%), chlorogenic acid (1.25%), and tannins (21.22%). Anal. of coffee oil using the Soxhlet extraction technique obtained Me ester compounds that have the potential for biodiesel such as linoleic acid Me ester (39.90%), palmitic acid Me ester (34.30%), oleic acid Me ester (8.74%), and stearic acid Me ester (8.66%). The integrated extraction has successfully separated many chem. components from spent coffee ground dan it has added value to be applied in food, beverage, pharmaceutical, and bioenergy. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8Related Products of 1731-94-8).

Methyl nonadecanoate (cas: 1731-94-8) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.Related Products of 1731-94-8

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

Characteristics and chemical compositions of propolis from Ethiopia was written by Rushdi, Ahmed I.;Adgaba, Nuru;Bayaqoob, Noofal I. M.;Al-Khazim, Ahmed;Simoneit, Bernd R. T.;El-Mubarak, Aarif H.;Al-Mutlaq, Khalid F.. And the article was included in SpringerPlus in 2014.Recommanded Product: 1731-94-8 The following contents are mentioned in the article:

Introduction: Propolis is a sticky material mixed by honeybees to utilize it in protecting their hives from infection by bacteria and fungi. The therapeutic properties of propolis are due to its chem. composition with bio-active compounds; therefore, researchers are interested in studying its chem. constituents and biol. properties. The main objective of this study is to determine the chem. compositions, characteristics and relative concentrations of organic compounds in the extractable organic matter of propolis samples collected from four different areas in Ethiopia. Results: The propolis samples were extracted with a mixture of dichloromethane and methanol and analyzed by gas chromatog.-mass spectrometry (GC-MS).The results showed that the total extract yields ranged from 27.2% to 64.2% (46.7 ± 19.1%). The major compounds were triterpenoids (85.5 ± 15.0% of the total extracts, mainly α-, β-amyrins and amyryl acetates), n-alkanes (5.8 ± 7.5%), n-alkenes (6.2 ± 7.0%,), Me n-alkanoates (0.4 ± 0.2%), and long chain wax esters (0.3 to 2.1%). Conclusion: The chem. compositions of these propolis samples indicate that they are potential sources of natural bio-active compounds for biol. and pharmacol. applications. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8Recommanded Product: 1731-94-8).

Methyl nonadecanoate (cas: 1731-94-8) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Recommanded Product: 1731-94-8

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

Influence of Moringa oleifera biodiesel-diesel-hexanol and biodiesel-diesel-ethanol blends on compression ignition engine performance, combustion and emission characteristics was written by Ramalingam, Selvakumar;Mahalakshmi, N. V.. And the article was included in RSC Advances in 2020.Related Products of 1731-94-8 The following contents are mentioned in the article:

In the current work, the influences of Moringa oleifera biodiesel-diesel-hexanol and Moringa oleifera biodiesel-diesel-ethanol blends on compression ignition engine characteristics were exptl. investigated. Experiments were conducted on a diesel engine at 0%, 25%, 50%, 75% and 100% load conditions run at a constant speed of 1500 rpm. The results revealed that B90-D5-H5 acquired the lowest BSFC and maximum BTE of 0.375 kg kW^-1 h^-1 and 28.8%, resp., and B100 had the highest BSFC of 0.425 kg kW^-1 h^-1. B90-D5-H5 had the highest cylinder peak pressure of 74 bar at 4°CA aTDC. The maximum heat release rate (HRR) and longer ignition delay (ID) period of 44 J per °CA and 14.4°CA, resp., were attained in the B90-D5-H5 blend. At 100% load condition, the lowest amount of carbon monoxide (CO) of 0.32% volume was acquired in the B80-D5-E15 blend. The maximum nitric oxide (NO) emission of 1090 ppm was also acquired in the B80-D5-E15 blend. B100 had the lowest NO of 846 ppm; B80-D5-E15 had the lowest unburned hydrocarbon (UBHC) emission of 34 ppm at 100% load and the lowest smoke opacity of 34%. Biodiesel-diesel-alc. blends improve engine performance and decrease emissions compared to the conventional diesel. The utilization of biodiesel-diesel-alc. blends reduces the consumption of diesel. Hence, ethanol and hexanol are recommended as potential alternative additives in biodiesel-diesel blends to improve engine performance and reduce emissions. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8Related Products of 1731-94-8).

Methyl nonadecanoate (cas: 1731-94-8) belongs to esters. Esters are also usually derived from carboxylic acids. It may also be obtained by reaction of acid anhydride or acid halides with alcohols or by the reaction of salts of carboxylic acids with alkyl halides. Because of their lack of hydrogen-bond-donating ability, esters do not self-associate. Consequently, esters are more volatile than carboxylic acids of similar molecular weight.Related Products of 1731-94-8

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