Category: 1731-94-8

Phosphorus and metal removal combined with lipid production by the green microalga Desmodesmus sp.: An integrated approach was written by Rugnini, L.;Costa, G.;Congestri, R.;Antonaroli, S.;Sanita di Toppi, L.;Bruno, L.. And the article was included in Plant Physiology and Biochemistry in 2018.COA of Formula: C20H40O2 The following contents are mentioned in the article:

This work focused on the potential of Desmodesmus sp. to be employed for wastewater bioremediation and biodiesel production The green microalga was grown in a culture medium with a phosphorus (P) content of 4.55 mg L^-1 simulating an industrial effluent; it was also exposed to a bimetal solution of copper (Cu) and nickel (Ni) for 2 days. P removal was between 94 and 100%. After 2 days of exposure to metals, 94% of Cu and 85% of Ni were removed by Desmodesmus sp. Adsorption tests showed that the green microalga was able to remove up to 90% of Cu and 43% of Ni in less than 30 min. The presence of metals decreased the lipid yield, but biodiesel quality from the biomass obtained from metal exposed samples was higher than that grown without metals. This result revealed that this technol. could offer a new alternative solution to environmental pollution and carbon-neutral fuel generation. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8COA of Formula: C20H40O2).

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. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.COA of Formula: C20H40O2

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GC-MS analysis of phytochemicals, fatty acid profile, antimicrobial activity of gossypium seeds was written by Krishnaveni, Marimuthu;Dhanalakshmi, Ravi;Nandhini, Nagaraj. And the article was included in International Journal of Pharmaceutical Sciences Review and Research in 2014.HPLC of Formula: 1731-94-8 The following contents are mentioned in the article:

A major portion of cotton production is occupying textile industry. The seeds of cotton were selected for the present study to know its phytochem. components, fatty acids present and also its antimicrobial activity. According to our GC-MS results obtained for phytochem. anal., 9, 12, 15-Octadecatrienoic acid, (Z,Z,Z)- shows highest peak area percent and it is a unsaturated in nature. n-Hexadecanoic acid otherwise called palmitic acid is showing higher peak area percent and then followed by linoleic acid Et ester, 12-Methyl-E,E-2,13-octadecadien-1-ol and also found to contain c-Sitosterol, c-Tocopherol, Vitamin E in trace amount Likewise, among the fatty acids studied 9,12-Octadecadienoic acid (Z,Z)-, Hexadecanoic acid Me ester, 9,12-Octadecadienoic acid (Z,Z)-Me ester was found to be high. Traces of margaric acid Me ester were also observed along with other Me esters. It was found to be active in killing bacteria than fungi. 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. Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are common in organic chemistry and biological materials.HPLC of Formula: 1731-94-8

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Effects of Elevated Temperature Postharvest on Color Aspect, Physiochemical Characteristics, and Aroma Components of Pineapple Fruits was written by Liu, Chuanhe;Liu, Yan. And the article was included in Journal of Food Science in 2014.Computed Properties of C20H40O2 The following contents are mentioned in the article:

In this work, 2 sep. experiments were performed to describe the influence of elevated temperature treatments postharvest on the color, physiochem. characteristics and aroma components of pineapple fruits during low-temperature seasons. The L* (lightness) values of the skin and pulp of pineapple fruits were decreased. The a* (greenness-redness) and b* (blueness-yellowness) values of the skin and pulp were all markedly increased. The elevated temperature significantly increased the contents of total soluble solids (TSS) and slightly affected contents of vitamin C (nonsignificant). Titratable acidity (TA) of pineapple fruits were notably decreased, whereas the values of TSS/TA of pineapple fruits were significantly increased. The firmness of the pineapple fruits decreased and more esters and alkenes were identified. The total relative contents of esters were increased, and the total relative contents of alkenes were decreased. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8Computed Properties of C20H40O2).

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.Computed Properties of C20H40O2

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Comparison of cell disruption methods for improving lipid extraction from thraustochytrid strains was written by Byreddy, Avinesh R.;Gupta, Adarsha;Barrow, Colin J.;Puri, Munish. And the article was included in Marine Drugs in 2015.Quality Control of Methyl nonadecanoate The following contents are mentioned in the article:

Lipid extraction is an integral part of biodiesel production, as it facilitates the release of fatty acids from algal cells. To utilize thraustochytrids as a potential source for lipid production We evaluated the extraction efficiency of various solvents and solvent combinations for lipid extraction from Schizochytrium sp. S31 and Thraustochytrium sp. AMCQS5-5. The maximum lipid extraction yield was 22% using a chloroform:methanol ratio of 2:1. We compared various cell disruption methods to improve lipid extraction yields, including grinding with liquid nitrogen, bead vortexing, osmotic shock, water bath, sonication and shake mill. The highest lipid extraction yields were obtained using osmotic shock and 48.7% from Schizochytrium sp. S31 and 29.1% from Thraustochytrium sp. AMCQS5-5. Saturated and monounsaturated fatty acid contents were more than 60% in Schizochytrium sp. S31 which suggests their suitability for biodiesel production This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8Quality Control of Methyl nonadecanoate).

Methyl nonadecanoate (cas: 1731-94-8) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Quality Control of Methyl nonadecanoate

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Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Enantiomeric synthesis of natural alkylglycerols and their antibacterial and antibiofilm activities was written by Fernandez Montoya, Deicy J.;Contreras Jordan, Luis A.;Moreno-Murillo, Barbara;Silva-Gomez, Edelberto;Mayorga-Wandurraga, Humberto. And the article was included in Natural Product Research in 2021.Name: Methyl nonadecanoate The following contents are mentioned in the article:

Alkylglycerols (AKGs) are bioactive natural compounds that vary by alkyl chain length and degree of unsaturation, and their absolute configuration is 2S. Three AKGs were synthesized in enantiomerically pure form, and were characterized for the 1st time together with 12 other known and naturally occurring AKGs. Their structures were established using ¹H and ¹³C APT NMR with 2D-NMR, ESI-MS, or HRESI-MS and optical rotation data, and they were tested for their antibacterial and antibiofilm activities. Some AKGs showed activity against 5 clin. isolates and Pseudomonas aeruginosa ATCC 15442, with MIC values in the range of 15-125μg/mL. In addition, at half of the MIC, most of the AKGs reduced Staphylococcus aureus biofilm formation in the range of 23-99% and P. aeruginosa ATCC 15442 biofilm formation in the range of 14-64%. The antibiofilm activity of the AKGs assessed in this work had not previously been studied. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8Name: Methyl nonadecanoate).

Methyl nonadecanoate (cas: 1731-94-8) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. 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.Name: Methyl nonadecanoate

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Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Isolation and identification of Lactobacillus and yeast species and their effect on the quality of fermented rice cakes was written by He, Li;Chen, Yanhua;Zhang, Haitian;Wang, Hui;Chen, Shujuan;Liu, Shuliang;Liu, Aiping;Li, Qin;Ao, Xiaolin;Liu, Yaowen. And the article was included in Innovative Food Science & Emerging Technologies in 2022.SDS of cas: 1731-94-8 The following contents are mentioned in the article:

In this study, microbes were isolated from the rice slurry of a fermented rice cake to obtain lactic acid bacteria and yeast species. These species were identified using microbial physiol. and gene sequence analyses. As the growth of the lactic acid bacterial strain R-2b and the yeast J-3a strains were found to be the best, a composite starter comprising these microbes was used for the preparation of fermented rice cakes. Based on single factor and orthogonal experiments, when the proportion of Lactobacillus plantarum, Saccharomyces cerevisiae, and Candida humilis was 1:3:6, the optimal fermentation conditions were addition of sugar and starter amounts of 20% and 6%, resp., a fermentation temperature of 32°C, and fermentation time of 8 h. The fermented rice cake with this optimum ratio had the most abundant volatile components and qualified physicochem. and microbial indexes. Addnl., the overall quality was better than that of com. available products. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8SDS of cas: 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. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.SDS of cas: 1731-94-8

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

Correlation analysis of physicochemical indexes with lipid oxidation characteristics during manufacturing process of fermented cantonese sausages was written by Huang, Jinzhi;Yang, Rongling;Tang, Daobang;Liu, Xueming. And the article was included in Shipin Kexue (Beijing, China) in 2015.Formula: C20H40O2 The following contents are mentioned in the article:

The acid value (AV) and peroxide value (POV), triobarbituric acid (TBA) value, carbonyl value, total acidity, moisture content, free fatty acid and fat during the production process of fermented Cantonese sausages were determined and their correlations were analyzed. The results showed that the AV, POV, TBA and carbonyl value increased as the production process proceeded. The contents of saturated fatty acids and free fatty acids were enhanced during the whole roasting process while the content of unsaturated fatty acids declined from 8 h onwards, which may be due to the continuous oxidation and hydrolysis of fat during the manufacturing process. In addition, pos. correlations among acid value, peroxide value, TBA, carbonyl value, total acid, moisture and fat content were observed POV was significantly correlated with total acidity. Therefore, rancidity degree and the degree of fat oxidation showed consistent trends during the manufacturing process. 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 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. 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.Formula: C20H40O2

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Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Comparison of methods of external and internal standard for GC determination of docosahexaenoic acid was written by Ivanova, Stefka Achkova;Tsvetkova, Dobrina Doncheva;Obreshkova, Danka Petrova. And the article was included in Bulletin of Pharmaceutical Research in 2018.SDS of cas: 1731-94-8 The following contents are mentioned in the article:

Present study includes the comparison of methods of external and internal standard for the estimation of parameters like linearity and precision in gas chromatog. anal. of docosahexaenoic acid (DHA) with flame ionization detector at temperature 140°C – 280°C and using hydrogen as gas carrier. Linear dependence of the ratio of area of methylated DHA/area of Me nonadecanoate (internal standard) to the DHA concentration was obtained. There was no observed difference between the correlation coefficients for two methods (R² = 0.9928). From the exptl. results, it is obvious that related standard deviation (RSD) for internal standard method is more than RSD for external standard method, which demonstrates that nonadecanoic acid is not a suitable internal standard The external standard method allows achievement of good linearity and precision and is appropriate for identification and determination of DHA and fatty acids in food supplements. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8SDS of cas: 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 are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.SDS of cas: 1731-94-8

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Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Esterification of Microwave Induced Pyrolytic Oil from Sago Bark Waste was written by Wahi, Rafeah;Yahaya, Syamila Aimi;Lam, Su Shiung;Abdul Aziz, Sharifah Mona;Ngaini, Zainab. And the article was included in Waste and Biomass Valorization in 2020.Reference of 1731-94-8 The following contents are mentioned in the article:

In this study, microwave induced pyrolytic oil from sago bark (SB) was subjected to esterification to improve its properties. Improvement on properties of the pyrolytic oil was performed via esterification with ethanol and the presence of sulfuric acid as a catalyst. The optimum esterification condition was studied using general factorial design. The esterified oil (EO) showed improved properties with pH (4-6), reduced moisture content (2.95-3.45%), d. (0.9-1.1 g cm^-3), and acid value (39.3-123.4 mg KOH^-1 g^-1), and maintained the CV (20.2-21.6 MJ kg^-1). GC-MS anal. showed that EO was sulfur free, and low in carboxylic acid and oxygenated compounds The optimal esterification condition with optimum quality of EO was at 65°C temperature, 60 min reaction time and 1:1 ethanol to oil volume ratio. Results indicated that the EO can be potentially used in robust combustion engines upon properties refinement. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8Reference of 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. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.Reference of 1731-94-8

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Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Phytochemical screening and in vitro hepatoprotective activity of Ipomoea obscura was written by Meena, B.;Santhi, G.. And the article was included in World Journal of Pharmaceutical Research in 2018.Application In Synthesis of Methyl nonadecanoate The following contents are mentioned in the article:

The World Health Organization (WHO) estimates that 80% of the people of developing countries rely on traditional medicines, mostly plant derived drugs for their primary health needs. Medicinal and preventing specific ailments are considered to play a significant role in health care. The use of plants in traditional systems is an indispensable source of medicinal preparations Hundreds of species recognized as having medicinal value. Indeed, ′phytomedicines′ to link traditional and modern medicines. In the present study to investigate the phytochems., histochem., fluorescence, GCMS anal. and hepatoprotective activity of Ipomoea obscura leaves. The results of the present study concluded that I. obscura leaves may be a good source of phytochems., histochem., fluorescence, GCMS. Over all the leaves of I. obscura is a source of phytochems. and possess hepatoprotective activity that can be important in oxidative stress mediated diseases diabetic, cancer, arthritis etc. 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. 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.Application In Synthesis of Methyl nonadecanoate

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Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics