Category: 929-77-1

Marques Cardoso, Carlos Magno published the artcileTransesterification of Pequi (Caryocar brasiliensis Camb.) bio-oil via heterogeneous acid catalysis: Catalyst preparation, process optimization and kinetics, Application of Methyl docosanoate, the main research area is Caryocar bio oil FAME heterogeneous acid catalysis.

The transesterification of Pequi (Caryocar brasiliensis Camb.) bio-oil was conduct with a heterogeneous acid catalyst prepared with the fruit’s carbonized rinds. The newly-developed catalyst was characterized by TGA/DSC, XRD diffraction, and FTIR anal. Experiments for process optimization of biodiesel production and catalyst reusability were carried out, also investigating the kinetics involved in bio-oil mass conversion. Crude FAME content was analyzed with GC-FID gas chromatographer and its fuel properties compared to worldwide standards Main finds were a crude FAME majorly composed by Me esters of palmitic acid, linoleic acid, and stearic acid, representing about 49.93, 13.24, and 10.16 weight%, resp. Optimized conditions for maximum FAME synthesis from Pequi bio-oil (99.4 ± 0.33%) were 18:1 M ratio of methanol to bio-oil, 60°C of temperature, 100 min of reaction, catalyst load of 2.5 weight%, and stirring speed of 600 rpm. Kinetics of the bio-oil mass conversion through transesterification presented reaction rates varying from 0.016 to 0.091 min-1, 63.07 kJ kg-1 of activation energy (Ea), and pre-exponential value (A) of 11.4E105. Catalyst efficiency decreased to 34.9% after 10 reuse cycles. Fuel properties of the crude FAME met worldwide standards of biodiesel quality, thus indicate that Pequi bio-oil is a viable, sustainable, and widely available feedstock option in Brazil.

Industrial Crops and Products published new progress about Caryocar brasiliense. 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, Application of Methyl docosanoate.

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

Syed, Chandini S. published the artcileExploration of antibacterial and antiproliferative secondary metabolites from marine Bacillus, Formula: C23H46O2, the main research area is decanoic acid methyl ester secondary metabolite anticancer antibacterial Bacillus.

Antiproliferative secondary metabolites producing bacterial strain AVSC4 isolated from marine sediments was identified as Bacillus flexus based on 16S rRNA gene sequence anal. Under the strategy of liquid- liquid extraction, the crude extract was obtained showed significant antibacterial activity against different clin. pathogens. 0.5% methionine and 0.4% NaCl act as inducers for maximizing the growth and antibacterial activity of strain at pH 7 and 40°C. Heptadecanoic acid and Me hexadecanoic acid were identified as major and dominant secondary metabolites by GC-MS anal. and also showed significant antiproliferative activity against HT-29 (Human colorectal adenocarcinoma) and A-549 (Lung Cancer) with IC50 value 93.4μg/mL and 50.04μg/mL.

Journal of Microbiology, Biotechnology and Food Sciences published new progress about Antibacterial agents. 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

Ahmed, Kashif published the artcileChemical composition, antibacterial and antifungal activities of Azadirachta indica and Mentha spicata L. leave essential oils, HPLC of Formula: 929-77-1, the main research area is Azadirachta Mentha leave essential oil extract antibacterial antifungal microbe.

The current workout investigated the chem. symphony and bioactivities of essential oils of Azadirachta indica and Mentha spicata. The essential oils of both herbs were acquired by soxhlet extraction apparatus and a brief chem. examination was conducted by gas chromatog.-mass spectrometry (GC-MS) and GC (gas chromatog.). Total 13 constituents from the essential oils of Azadirachta indica had been identified among them the major components are 11-octadecanoic acid Me ester (87.76%), docosanoic acid (4.93%) and 9-octadecanoic acid Et ester (3%). Sixteen constituents from Mentha spicata essential oils were also observed among them the major ones are E-Piperitol (42.68%), Caryophyllene oxide (7.79%), 4-terpinol (4.39%), octanoic acid (4.24%), Ascaidole (3.8%), Carvacrol (3.3%), Anethole (3.2%), bicyclo-germacene (2.75%), Caryophyllene (2.73%), Thymol (1.99%), 2-decadienal (1.64%), D-carvone (1.58%), Piperitol (1.38%) and Linollyl acetate (1.34%). The essential oils were screened for their antimicrobial activities. The essential oil of Azadirachta indica was active against 5 Gram pos. and 2 Gram neg. bacteria showed activity against 1 fungi. Similarly mentha spicata essential oils were also active against 3 Gram pos. and 2 Gram neg. bacteria.

International Journal of Biosciences published new progress about Antibacterial agents. 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

Abbas, Rasha Khalid published the artcileChemical constituents of the goat margarine and antibacterial activity against bacterial Pathogens in Sudan, Quality Control of 929-77-1, the main research area is Escherichia Pseudomonas Salmonella goat margarine chem constituent antibacterial.

The margarine constituents were examined by Gas Chromatog.-Mass Spectrometry (GC-MS), it contained 41 compounds, fifteen of them were identified as the major compound, Hexadecanoic acid, Me ester (22.39%), Me stearate (14.92%), Me elaidate (13.80%), Me tetradecanoate (10.74%), Capric acid, Me ester (8.34%) Lauric acid (4.52%) Me octanoate (2.70%), linoleic acid Me ester (2.57%), Me 11-octadecenoate (1.90%), Me caproate (1.77%), Me pentadecanoate (1.72%), Me (8E,11E)-8,11-octadecadienoate (1.70%), Heptadecanoic acid, Me ester, (1.46%),trans-13-Octadecenoic acid, Me ester (Oleic acid) (1.20%), Me palmioleate (1.00%). The effect of goat margarine, against four different pathogenic bacteria Escherichia coli, Pseudomonas aeruginosa, Salmonella typhimurium, and Bacillus cereus, were carried out by using a disk diffusion technique, the highest antibacterial activity was detected against Salmonella typhimurium and the lowest one against Escherichia coli. The antibacterial activity of the antibiotics, (Ciprofloxacin, Tetracycline Ceftriaxone, Chloramphenicol and Gentamycin), were tested by the disk diffusion technique, and by measuring zones of inhibition, shows that there were differences, among all antibiotic the highest activity of antibiotic against bacteria was due to the action of ciprofloxacin. Ceftriaxone and Tetracycline antibiotic give lowest activity.

Journal of Pure and Applied Microbiology published new progress about Antibacterial agents. 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

Soraggi Battagin, Tiago published the artcileSyzygium aromaticum (clove) essential oil: An alternative for the sanitization of citrus fruit in packinghouses, Product Details of C23H46O2, the main research area is Syzygium aromaticum essential oil citrus fruit packing sanitization.

Citrus canker is a quarentenary disease caused by Xanthomonas citri subsp. citri (X. citri). Thus, sanitization of fresh fruit is a necessary measure before any com. activity. Therefore, we evaluated the clove essential oil (CEO), as an alternative sanitizer for the disinfection of citrus fruit in packinghouses. Tests in vitro and in vivo were carried out to determine the cell inhibitory concentration and to verify the efficacy of the oil for the disinfection of citrus fruits. In in vitro tests, CEO was able to inhibit X. citri when used at 0.75% (volume/volume). In experiments that simulate the sanitization process used in packinghouses, 5% CEO was as effective as the recommended sanitization product based on sodium hypochlorite. GC-MS results showed a high presence of eugenol derivatives as the major compounds of CEO. All results proved that CEO is a potential sanitizer that could be used as an alternative to sodium hypochlorite. Novelty impact statement : Exptl. evidence shows that the clove essential oil (CEO) has the same sanitization efficacy as sodium hypochlorite, which makes of CEO an alternative sanitizer for the decontamination of citrus fruits to be exported to the European Union. CEO is a safer and more sustainable sanitizer for the postharvest disinfection of citrus fruit.

Journal of Food Processing and Preservation published new progress about Antibacterial 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

Khan, Kehkashan published the artcilePhytochemical and pharmacological profile with biogenetic correlation of bioactive phytoconstituents from the stems of Cordia sinensis Lam, Recommanded Product: Methyl docosanoate, the main research area is phytochem pharmacol bioactive stem Cordia; Cordia sinensis Lam.; GC-MS; biogenesis; phytotoxic.

Present investigation reports first phytochem. profile of Cordia sinensis Lam. stems utilizing GC-FID and GC-MS analyses. Moreover, antibacterial, antifungal, phytotoxic and insecticidal potential of stems was also evaluated. Altogether 33 (�9%) compounds were identified. n-Hexadecanoic acid (15.62-35.55%), Me hexadecanoate (11.22-29.49%), Me octadecanoate (4.10-8.66%) and n-octadecanoic acid (4.24-6.64%), present in all the fractions were the major components identified. Overall 4 hydrocarbons, 7 fatty acids, 12 fatty acid esters, 3 phytosterols, 2 terpenes, a terpenoid and 4 aromatics were identified. It is important to note that methanolic mother extract showed moderate phytotoxic activity at higher dose only. However, GC-MS identifications revealed the presence of several phytoconstituents with reported bioactive potential. Moreover, biogenetic correlation of identified phytoconstituents with other parts of plant confirms their natural existence. Newly identified secondary metabolites of C. sinensis stems may also serve as the chemotaxonomic markers and can be correlated with the genus Cordia and Boraginaceae.

Natural Product Research published new progress about Antibacterial agents. 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

Aminal, Musarat published the artcileExploiting the potential of Moringa oleifera oil/polyvinyl chloride polymeric bionanocomposite film enriched with silver nanoparticles for antimicrobial activity, Recommanded Product: Methyl docosanoate, the main research area is Moringa Staphylococcus Escherichia Salmonella polyvinyl chloride polymeric bionanocomposite antimicrobial.

The present study focused on the prospect of fabricating a polymeric naturally extracted Moringa oleifera oil bionanocomposite film enriched with silver nanoparticles for antimicrobial activity. In this study, a standard concentration of Moringa oleifera oil (5-10 wt%) was used to fabricate a polymeric bionanocomposite film using polyvinyl chloride (PVC) enriched with silver nanoparticles. The active constituents of the extracted Moringa oleifera oil were verified using gas chromatog.-mass spectrometry. Spectroscopic and microscopic techniques, including SEM, X-ray diffraction, and energy-dispersive X-ray anal., were employed to characterize and study the surface morphol. of the fabricated bionanocomposite film. The antimicrobial activity of the fabricated bionanocomposite film was investigated using different strains of bacteria and fungus. The results revealed well-oriented and excellently dispersed silver nanoparticles in the PVC-Moringa oleifera oil matrix. The bionanocomposite was able to inhibit the growth of Staphylococcus aureus, Escherichia coli, Klebsiella pneumoniae, Salmonella typhi, Pseudomonas aeruginosa, Shigella flexneri, and Candida albicans. The combination of nanoparticles with polymers is opening new routes for engineering fixable composites, which showed antimicrobial properties.

International Journal of Polymer Science published new progress about Antimicrobial agents. 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

Banerjee, Sanjukta published the artcileOptimization of Chlamydomonas reinhardtii cultivation with simultaneous CO2 sequestration and biofuels production in a biorefinery framework, Category: esters-buliding-blocks, the main research area is carbon dioxide Chlamydomonas biofuel biorefinery; Bioethanol; Biorefinery; CO(2) sequestration; Microalgae: Chlamydomonas reinhardtii; Parameter optimization.

Algal biomass is regarded as a sustainable energy feedstock for the future. Enhancement of the biomass and metabolite production of microalgae increases the economic feasibility of the biofuel production process. The present study encompasses on bioethanol production from Chlamydomonas reinhardtii through a biorefinery approach. The biomass and carbohydrate productivity of C. reinhardtii UTEX 90 and CC 2656 were enhanced by optimizing the physico-chem. parameters. The following conditions were found suitable for the improvement of biomass and metabolite content of C. reinhardtii: pH 6.5-7.0, incubation temperature 30°C, initial acetate and ammonium chloride concentration of 1.56 g L-1 and 100-200 mg L-1, resp. Under the optimized operational condition biomass and carbohydrate productivity of C. reinhardtii UTEX 90 and CC 2656 were 512 mg L-1 d-1 & 266.24 mg L-1 d-1 and 364 mg L-1 d -1 & 163.80 mg L-1 d-1, resp. The amount of CO2 sequestered during the cultivation process by UTEX 90 and CC 2656 were 113 mg L-1 d-1 and 74.95 mg L-1 d-1, resp. The depigmented and defatted carbohydrate rich biomass was considered as raw material for bioethanol production The bioethanol yield range was 90-94% of the theor. yield using Saccharomyces cerevisiae INVSC-1 in a double jacket reactor. To improve the viability of the process, the spent media after ethanol fermentation was subsequently used for methane production using mixed microbial consortium. The energy recovery from the process was 40.39% and 39.7% for UTEX 90 and CC 2656, resp. when C. reinhardtii biomass was used as substrate for biofuel production The present investigation concedes with the potentiality of algae as a favorable 3rd generation feedstock to address the existing challenges of clean energy production with concomitant CO2 sequestration.

Science of the Total Environment published new progress about Autotrophic bacteria. 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

Sayuti, Mohammad published the artcileQualitative analysis and biological screening of Sterculia tragacantha fruit extract, HPLC of Formula: 929-77-1, the main research area is Sterculia tragacantha fruit extract qual analysis biol screening.

Utilization of natural materials as an alternative medicine in warding off diseases is increasingly in demand. This study aimed to determine the secondary metabolite content, antioxidant activity, antibacterial activity, fatty acid content and amino acid content of the extract of Sterculia tragacantha fruit. Sample was evaluated for phytochem. content, antioxidant activity, antibacterial activity, fatty acid content and amino acids. The results indicated that the phytochem. compounds of papaya woton fruit simplicia include flavonoid, tannin, hydrolyzable tannin, phenolic, polyphenols and saponin. The extract of methanol has a strong antioxidant activity while that of n-hexane has a potential as antibacterial to Vibrio alginolyticus. The main fatty acids of Sterculia tragacantha fruit extract were Me palmitate and Me tricosanoate while the main amino acids were L-Arginine, L-Proline and L-Glutamic acid.

International Research Journal of Pharmacy published new progress about Aeromonas hydrophila. 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

Larraza, Isabel published the artcileMicrowave-Assisted Transesterification of Cooking Oils and GC-MS Determination of Their Fatty Acid Constituents: A Research-Based Integrated Lab Experiment, HPLC of Formula: 929-77-1, the main research area is fatty acid cooking oil GCMS analysis chem education.

An increased public knowledge of the health benefits of unsaturated fats has resulted in a surge of different cooking oils. Intense advertising of various oil brands claiming to provide the best dietary recommendations often leaves buyers unclear of what their best choices are. Herein, we describe a research-based project for upper-level undergraduate students, where they can use interdisciplinary concepts in organic chem., biochem., anal. chem., and instrumental anal. to integrate them in a nutrition laboratory The experiment was tested over two years in the Instrumental Anal. class, where each student analyzed a liquid oil used for cooking or salad dressings. Ten cooking oils were selected: sunflower, safflower, avocado, sesame, peanut, corn, canola, grapeseed, soybean, and a mixture of sunflower and coconut oils. Six different olive oil products were also compared according to their country of origin, fertilizer used (organic or regular), and type of oil (extra virgin, extra light, 100% pure). The fatty acids (FAs) were first derivatized to their volatile Me esters (FAMEs) using a microwave-assisted, base-mediated transesterification reaction and then quantified by GC-MS. After pooling the class data, students were exposed to the practical aspects of food anal. while gaining more understanding of their dietary choices.

Journal of Chemical Education published new progress about Analytical chemistry. 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