Category: esters-buliding-blocks

Changmai, Bishwajit published the artcileBiodiesel production using a renewable mesoporous solid catalyst, HPLC of Formula: 929-77-1, the main research area is biodiesel production renewable mesoporous solid catalyst.

Heterogeneous solid catalysts have been largely developed for biodiesel production, because of their attractive acid-base properties, strong hydrothermal stability, and efficient recovery/reusability. In this framework, developing bio-waste derived heterogeneous catalysts has attracted immense attention for several catalytic applications, owing to their inexpensive, high abundance, non-toxic, and adequate acid-base properties. In the present work, we investigated the catalytic performance of a biomass-derived orange peel ash (OPA), which contains a porous structure, as a raw heterogeneous catalyst for the transesterification of soybean oil to biodiesel. About 98% conversion of soybean oil to biodiesel was obtained under the optimized reaction conditions i.e., 6:1 methanol:oil ratio, 7 weight% catalyst loading, 7 h reaction time at ambient reaction temperature, which ascribed to the presence of abundant basic sites in the developed OPA catalyst. The catalyst can be reused for five successive cycles and shows good stability towards the biodiesel production

Industrial Crops and Products published new progress about Biodiesel fuel. 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

Fuad Hossain, Md. published the artcileIdentification and culturing of cyanobacteria isolated from freshwater bodies of Sri Lanka for biodiesel production, Formula: C11H22O2, the main research area is Croococcidiopsis Cephalothrix Leptolyngbya methyl octanoate biodiesel Sri Lanka; Biodiesel; Cyanobacteria; Gas chromatography.

The present study was carried out to investigate cyanobacteria as a potential source for biodiesel production isolated from fresh water bodies of Sri Lanka. FAME component was identified using gas chromatog. (GC). Atotal of 74 uni-algal cultures were obtained from Biofuel and Bioenergy laboratory of the National Institute of Fundamental Studies (NIFS), Kandy, Sri Lanka. The total lipid content was recorded highest in Oscillatoria sp. (31.9 ± 2.01% of dry biomass) followed by Synechococcus sp. (30.6 ± 2.87%), Croococcidiopsis sp. (22.7 ± 1.36%), Leptolyngbya sp. (21.15 ± 1.99%), Limnothrixsp. (20.73 ± 3.26%), Calothrix sp. (18.15 ± 4.11%) and Nostoc sp. (15.43 ± 3.89%), Cephalothrixsp. (13.95 ± 4.27%), Cephalothrix Komarekiana (13.8 ± 3.56%) and Westiellopsisprolifica (12.80 ± 1.97%). FAME anal. showed cyanobacteria contain Me palmitoleate, Linolelaidic acid Me ester, Cis-8,11,14-eicosatrienoic acid Me ester, Cis-10-heptadecanoic acid Me ester, Me myristate, Me pentadecanoate, Me octanoate, Me decanoate, Me laurate, Me tridecanoate, Me palmitoleate, Me pentadeconoate, Me heptadeconoate, Linolaidic acid Me ester, Me erucate, Me myristate, Myristoloeic acid, Me palmitate, Cis-9-oleic acid Me ester, Me arachidate and Cis-8,11,14-ecosatrieconoic acid Me ester. The present study revealed that cyanobacteria isolated from Sri Lanka are potential source for biodiesel industry because of their high fatty acid content.

Saudi Journal of Biological Sciences published new progress about Biodiesel fuel. 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

Fuad Hossain, Md. published the artcileIdentification and culturing of cyanobacteria isolated from freshwater bodies of Sri Lanka for biodiesel production, Synthetic Route of 111-11-5, the main research area is Croococcidiopsis Cephalothrix Leptolyngbya methyl octanoate biodiesel Sri Lanka; Biodiesel; Cyanobacteria; Gas chromatography.

The present study was carried out to investigate cyanobacteria as a potential source for biodiesel production isolated from fresh water bodies of Sri Lanka. FAME component was identified using gas chromatog. (GC). Atotal of 74 uni-algal cultures were obtained from Biofuel and Bioenergy laboratory of the National Institute of Fundamental Studies (NIFS), Kandy, Sri Lanka. The total lipid content was recorded highest in Oscillatoria sp. (31.9 ± 2.01% of dry biomass) followed by Synechococcus sp. (30.6 ± 2.87%), Croococcidiopsis sp. (22.7 ± 1.36%), Leptolyngbya sp. (21.15 ± 1.99%), Limnothrixsp. (20.73 ± 3.26%), Calothrix sp. (18.15 ± 4.11%) and Nostoc sp. (15.43 ± 3.89%), Cephalothrixsp. (13.95 ± 4.27%), Cephalothrix Komarekiana (13.8 ± 3.56%) and Westiellopsisprolifica (12.80 ± 1.97%). FAME anal. showed cyanobacteria contain Me palmitoleate, Linolelaidic acid Me ester, Cis-8,11,14-eicosatrienoic acid Me ester, Cis-10-heptadecanoic acid Me ester, Me myristate, Me pentadecanoate, Me octanoate, Me decanoate, Me laurate, Me tridecanoate, Me palmitoleate, Me pentadeconoate, Me heptadeconoate, Linolaidic acid Me ester, Me erucate, Me myristate, Myristoloeic acid, Me palmitate, Cis-9-oleic acid Me ester, Me arachidate and Cis-8,11,14-ecosatrieconoic acid Me ester. The present study revealed that cyanobacteria isolated from Sri Lanka are potential source for biodiesel industry because of their high fatty acid content.

Saudi Journal of Biological Sciences published new progress about Biodiesel fuel. 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Synthetic Route of 111-11-5.

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

Bharte, Supriya published the artcileThe enhanced lipid productivity of Chlorella minutissima and Chlorella pyrenoidosa by carbon coupling nitrogen manipulation for biodiesel production, Synthetic Route of 929-77-1, the main research area is Chlorella lipid biodiesel carbon coupling nitrogen manipulation; Changing carbon-nitrogen content; Chlorella minutissima; Chlorella pyrenoidosa; Fatty acid methyl esters; Lipid production; Sulpho-phospho-vanillin assay.

Biodiesel production from microalgae has been researched extensively and attempted to commercialize on a large scale, but there are major hurdles in the production process like harvesting and low lipid content, which should be studied to enhance the process and make it economical. Present study aimed to improve the lipid productivity of Chlorella minutissima and Chlorella pyrenoidosa by modifying the carbon and nitrogen content of the medium. Both organisms were grown in BG11 medium for the first 6 days and thereafter grown in a modified BG11 medium completely deprived of nitrogen for 2 to 10 days. Nitrogen deprivation increased the lipid productivity of Chlorella minutissima to 20% and that of Chlorella pyrenoidosa to 17.6% by day 6. This was further coupled with carbon addition in the form of citric acid (5 g/L), sodium acetate (5 g/L), sodium carbonate (5 g/L), and sodium potassium tartarate (5 g/L), which increased the total lipid productivity of Chlorella minutissima up to 24% and that of Chlorella pyrenoidosa up to 23%. The highest lipid productivity of up to 24% for Chlorella minutissima and up to 23% for Chlorella pyrenoidosa was observed with nitrogen deprivation coupled with sodium acetate. Acidic transesterification revealed the presence of fatty acid Me esters, majority of which consisted of hexadecenoic acid Me ester and octadecanoic acid Me ester. Maximum of 3% fatty acid Me esters for Chlorella minutissima and 4% for Chlorella pyrenoidosa were obtained under nitrogen deprivation and sodium acetate as a carbon source. Thus, nitrogen deprivation coupled with sodium acetate as an increased carbon source in BG11 medium helps to increase the lipid productivity of Chlorella minutissima and Chlorella pyrenoidosa, and produces long-chain fatty acid Me esters of C17 and C19 along with C21, C25, and C29.

Environmental Science and Pollution Research published new progress about Biodiesel fuel. 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, Synthetic Route of 929-77-1.

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

Cahyo Kumoro, Andri published the artcileUltrasound-assisted transesterification of tropical goat fat – Palm oil blend for biodiesel synthesis, Category: esters-buliding-blocks, the main research area is tropical goat fat palm oil blend biodiesel synthesis.

The increasing trend of global energy demand has encouraged the development of renewable energies, especially those derived from biomass and agricultural residues. This work aimed to study the effect of catalyst loading, temperature, and methanol-to-oil molar ratio on the yield and the reaction kinetics of ultrasound-assisted transesterification of tropical goat fats for biodiesel synthesis. Prior to trans-esterification, the oil extracted from the tropical goat fat was mixed with an equal volume of tropical palm oil to prevent its solidification tendency. To reduce the free fatty acids content of the mixed oil, it was esterified using a methanol-to-oil molar ratio of 9 employing 1 wt% sulfuric acid as the catalyst at 65 °C and 400 rpm agitation speed for 60 min. Then, the esterified oil was further subjected to an ultrasound-assisted transesterification system with sodium hydroxide catalyst for the reaction kinetics and biodiesel synthesis studies. The biodiesel properties were evaluated by both laboratory tests and BiodieselAnalyzer software, which employs the fatty acid Me ester composition obtained from GC-MS anal. The highest conversion (78.50%) was achieved at 65 °C, 2.5 wt% of NaOH, and 8:1 methanol/oil blend molar ratio for 60 min. The pseudo-first order reaction fitted all the exptl. data very well by giving the R2 values higher than 0.98 and an apparent reaction rate constant of 2.15×10-2 min-1 at the optimum condition. Furthermore, all the examined biodiesel physicochem. properties fulfilled the ASTM D6751 standard suggesting the promising potential of goat fats as the raw material for biodiesel manufacture

Energy Conversion and Management: X published new progress about Biodiesel fuel. 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

Dalvi, Sanjaykumar published the artcileBiodiesel (fatty acid methyl ester) from Chlorococcalean Chlorella vulgaris by single step in-situ transesterification, Name: Methyl octanoate, the main research area is fatty acid methyl ester transesterification algae assessment.

To study the single step in-situ transesterification process for synthesis of fatty acid Me ester (biodiesel) from microalgae biomass Chlorococcalean Chlorella vulgaris. The growth and lipid productivity of an isolated microalgae C. vulgaris were studied under Chu’s 10 modified media under phototrophic cultivation conditions. In-situ transesterification of this dry biomass with methanol in presence of base catalyst at 60° C was carried out to investigate the fatty acid Me ester’s biochem. composition by FTIR & anal. performed using GCMS technique. The cetane number was also calculated The biodiesel fraction from C. vulgaris biomass was found to be 85.58%. The 43.40% lipid fraction was obtained from the biomass of C. vulgaris. In the in-situ transesterification process, the optimal concentration of potassium hydroxide (KOH) and methanol yields an 85.58 percent biodiesel fraction. The presence of lipid compounds and the biochem. composition of fatty acid Me ester were verified with the help of FTIR spectral anal. The gas chromatog.-mass spectrometry anal. explores the fatty acid Me ester profile, which comprises 29.05% and 56.54 percent saturated and unsaturated FAMEs. Through GCMS, the fatty acid Me ester composition of C. vulgaris microalgae species was revealed through six types of fatty acid Me esters, of which 54.95%, 11-octadecenoic acid Me ester, is the dominant one. The cetane number of C. vulgaris biodiesel was determined to be 67.726; this is comparable to diesel fuel according to ASTM-D613, and the presence of a higher fatty acid Me ester composition indicates favorable biofuel qualities. The calculation of cetane number by theor. method and affirmation of ecofriendly single step in-situ transesterification method for biodiesel production

Indian Journal of Science and Technology published new progress about Biodiesel fuel. 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Name: Methyl octanoate.

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

Dalvi, Sanjaykumar published the artcileBiodiesel (fatty acid methyl ester) from Chlorococcalean Chlorella vulgaris by single step in-situ transesterification, Recommanded Product: Methyl decanoate, the main research area is fatty acid methyl ester transesterification algae assessment.

To study the single step in-situ transesterification process for synthesis of fatty acid Me ester (biodiesel) from microalgae biomass Chlorococcalean Chlorella vulgaris. The growth and lipid productivity of an isolated microalgae C. vulgaris were studied under Chu’s 10 modified media under phototrophic cultivation conditions. In-situ transesterification of this dry biomass with methanol in presence of base catalyst at 60° C was carried out to investigate the fatty acid Me ester’s biochem. composition by FTIR & anal. performed using GCMS technique. The cetane number was also calculated The biodiesel fraction from C. vulgaris biomass was found to be 85.58%. The 43.40% lipid fraction was obtained from the biomass of C. vulgaris. In the in-situ transesterification process, the optimal concentration of potassium hydroxide (KOH) and methanol yields an 85.58 percent biodiesel fraction. The presence of lipid compounds and the biochem. composition of fatty acid Me ester were verified with the help of FTIR spectral anal. The gas chromatog.-mass spectrometry anal. explores the fatty acid Me ester profile, which comprises 29.05% and 56.54 percent saturated and unsaturated FAMEs. Through GCMS, the fatty acid Me ester composition of C. vulgaris microalgae species was revealed through six types of fatty acid Me esters, of which 54.95%, 11-octadecenoic acid Me ester, is the dominant one. The cetane number of C. vulgaris biodiesel was determined to be 67.726; this is comparable to diesel fuel according to ASTM-D613, and the presence of a higher fatty acid Me ester composition indicates favorable biofuel qualities. The calculation of cetane number by theor. method and affirmation of ecofriendly single step in-situ transesterification method for biodiesel production

Indian Journal of Science and Technology published new progress about Biodiesel fuel. 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

Nahar, Sharifun published the artcileNoninvasive, label-free, and quantitative monitoring of lipase kinetics using terahertz emission technology, Recommanded Product: Methyl octanoate, the main research area is noninvasive quant monitoring lipase kinetics terahertz emission technol; Candida antarctica lipase B; enzyme assay; esterase; horseradish peroxidase; milk; terahertz emission.

Enzymes catalyze chem. transformations of great importance in many fields, and anal. of the rate of these transformations is equally important. The latter are typically monitored using surrogate substrates that produce quantifiable optical signals, owing to limitations associated with “”label-free”” techniques that could be used to monitor the transformation of original substrate mols. In this study, terahertz (THz) emission technol. is used as a noninvasive and label-free technique to monitor the kinetics of lipase-induced hydrolysis of several substrate mols. (including the complex substrate whole cow’s milk) and horseradish peroxidase-catalyzed oxidation of o-phenylenediamine in the presence of H2O2. This technique was found to be quant., and kinetic parameters are compared to those obtained by proton NMR spectroscopy or UV/Vis spectroscopy. This study sets the stage for investigating THz emission technol. as a tool for research and development involving enzymes, and for monitoring industrial processes in the food, cosmetic, detergent, pharmaceutical, and biodiesel sectors.

Biotechnology and Bioengineering published new progress about Biodiesel fuel. 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Recommanded Product: Methyl octanoate.

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

Naser, Jamil published the artcileRegeneration of spent bleaching earth and conversion of recovered oil to biodiesel, HPLC of Formula: 111-11-5, the main research area is oil biodiesel conversion spent bleaching; Biodiesel; Bleaching; Pyrolysis; Regenerated bleaching earth (RBE); Spent bleaching earth (SBE); Vegetable oil.

A large amount of spent bleaching earth (SBE) solid waste is generated by the vegetable oil refining industry. This spent bleaching earth contains entrapped crude oil and in most cases, it is disposed of in its pristine state, which is considered an environmental hazard. In this work, the regeneration of SBE by pyrolysis or solvent extraction, and the conversion of the recovered entrapped vegetable oil to biodiesel are investigated. The entrapped oil was extracted using n-hexane, methanol or steam as solvents, and the SBE was regenerated by pyrolysis under inert environment of Nitrogen at 450°C, 550°C and 650°C. After oil extraction, the regenerated bleaching earth (RBE) was activated and employed in virgin vegetable oil bleaching. Peroxide activated samples of methanol-extracted and pyrolyzed regenerated bleaching earth at 450°C and 650°C exhibit superior bleaching property; demonstrating that the SBE could be regenerated to have superior bleaching capacity over fresh bleaching earth. Thermogravimetric anal. (TGA) and Fourier transform IR (FTIR) anal. of the SBE show that methanol extracted 23.5% out of the 35% residual oil (i.e. 67% efficiency) compared to 15.7% (i.e. 45% efficiency) by n-hexane, while pyrolysis extracted 33% out of the 35% residual oil (i.e. 95% efficiency). GC-MS anal. of the produced biodiesel shows that the n-hexane extracted oil produces more fatty acid Me esters (FAME). Therefore, the choice of solvent depends on the intended application; as methanol regenerates the SBE better while retaining its adsorptive properties, while n-hexane gives a better biodiesel yield.

Waste Management (Oxford, United Kingdom) published new progress about Biodiesel fuel. 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, HPLC of Formula: 111-11-5.

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

Dandajeh, Hamisu Adamu published the artcileEffect of equalising ignition delay on combustion and soot emission characteristics of model fuel blends, Application of Methyl decanoate, the main research area is fuel blend equalizing ignition delay combustion soot emission.

This paper examines the effect of equalizing ignition delay in a compression ignition engine. Two sets of tests were conducted, i.e. a set of constant injection timing tests with start of fuel injection at 10° crank angle degree (CAD) before top dead center (BTDC) and a set of constant ignition timing tests while also keeping the 10° CAD BTDC injection and adding ignition improver (2-ethylhexylnitrate-, 2-EHN) to the fuel mixtures Soot particles were characterized using DMS-500 instrument in terms of mass, size, and number The exptl. results showed that adding 2-EHN to the model fuel blends reduced the soot surface area, soot mass concentration and soot mean size. Replacing 20 vol% of a C7-heptane with 20 vol% methyl-decanoate (an oxygenated C11 mol.) did not affect the ignition delay or rate of fuel air premixing, the peak in-cylinder pressure or heat release rates. Toluene addition (0-22.5 vol%) to heptane increased the mean size of the soot particles generated by only 3% while also resulted in a slight increase in the peak cylinder pressure and peak heat release rates. Blending toluene and methyl-decanoate into heptane without adding 2-EHN increased the premix phase fraction by at least 13%. However, by adding 2-EHN (4×10-4-1.5×10-3), the premixed phase fraction decreased by at least 11%.

Journal of Central South University (English Edition) published new progress about Biodiesel fuel. 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, Application of Methyl decanoate.

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