Tag: 300-400

Using design of experiments to fabricate nanostructured lipid carrier of egg white hydrolysates was written by Jangpromma, Nisachon;Jearranaiprepame, Supisara;Nowichai, Boonpob;Sosiangdi, Sirinthip;Khunkitti, Watcharee. And the article was included in Songklanakarin Journal of Science and Technology in 2022.Product Details of 31566-31-1 The following contents are mentioned in the article:

The aims of this study were to develop a nanostructured lipid carrier (NLC) system and optimize an appropriate NLC formulation using design of experiments (DOE). The results showed that the formulation containing glycerol monostearate (GMS) 0.35 g, stearic acid (SA) 0.50 g and iso-Pr myristate (IPM) 0.65 g was optimal with entrapment efficiency (%EE) (59.21%), particle size (233.7nm) and zeta potential (-41.26 mV). Moreover, solid lipid (GMS, SA) and liquid lipid (IPM) had significant impact on NLC characteristics. The pos. effect on the %EE was due to the interaction between GMS and IPM, and SA and IPM. The optimal formulation EWH-NLC at concentration 125 μg/mL expressed the highest inhibitory activity against NO production in RAW 264.7 macrophages with no cytotoxicity. The release profile of EWH-NLC in the cream base exhibited sustained release behavior that best fitted with Higuchi model. These results suggest that the NLC is a suitable carrier for EWH in topical application with a sustained-release profile. This study involved multiple reactions and reactants, such as Glyceryl monostearate (cas: 31566-31-1Product Details of 31566-31-1).

Glyceryl monostearate (cas: 31566-31-1) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. 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.Product Details of 31566-31-1

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

Medium and large scale preparation of Nanostructured Lipid Carriers of asenapine maleate: Quality-by-design based optimization, production, characterization and performance evaluation was written by Rao, Rajat Radhakrishna;Pisay, Muralidhar;Kumar, Sunil;Kulkarni, Sanjay;Pandey, Abhijeet;Kulkarni, Vijay Induvadan;Mutalik, Srinivas. And the article was included in Journal of Drug Delivery Science and Technology in 2022.Computed Properties of C21H44O5 The following contents are mentioned in the article:

In the present study, scale-up of preparation of Asenapine maleate (ASPM) loaded Nanostructured lipid carriers (NLCs) to medium as well as the large scale was performed with the aid of Quality-by-Design (QbD) approach. High-pressure homogenization (HPH) was used to scale up the ASPM loaded NLCs to medium (40 mL) and large-scale (300 mL) batches. The statistical exptl. design was employed to optimize the HPH parameters and the results of the design showed that the size of ASPM loaded NLCs decreased with the increase in pressure and number of cycles of HPH. Also, increasing the number of cycles resulted in a slight increase in the %drug entrapped. FTIR and DSC were used to assess the compatibility between drug and excipients. The shape and surface morphol. of NLCs studied by Transmission Electron Microscope revealed a spherical shape with an approx. size of less than 100 nm. The cytotoxicity of NLCs using MTT assay in Caco2 cells demonstrated the safety of ASPM-NLCs. Further, in vivo pharmacokinetics and efficacy studies strengthened the applicability of ASPM-NLCs produced at a large scale for further in vivo and clin. environments. This study involved multiple reactions and reactants, such as Glyceryl monostearate (cas: 31566-31-1Computed Properties of C21H44O5).

Glyceryl monostearate (cas: 31566-31-1) 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. 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.Computed Properties of C21H44O5

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

A comparison study of extraction methods for bio-liquid via hydrothermal carbonization of food waste was written by Bang, YeJin;Choi, Minseon;Bae, Sunyoung. And the article was included in Analytical Science & Technology in 2018.Formula: C20H40O2 The following contents are mentioned in the article:

The hydrothermal carbonization method has received great attention because of the conversion process from biomass. The reaction produces various products in hydrochar, bio-liquid, and gas. Even though its yield cannot be ignored in amount, it is difficult to find research papers on bio-liquid generated from the hydrothermal carbonization reaction of biomass. In particular, the heterogeneity of feedstock composition may make the characterization of bio-liquid different and difficult. In this study, bio-liquid from the hydrothermal carbonization reaction of food wastes at 230 °C for 4 h was investigated. Among various products, fatty acid Me esters were analyzed using two different extraction methods: liquid-liquid extraction and column chromatog. Different elutions with various solvents enabled us to categorize the various components. The eluents and fractions obtained from two different extraction methods were analyzed by gas chromatog. with a mass spectrometer (GC/MS). The composition of the bio-liquid in each fraction was characterized, and seven fatty acid Me esters were identified using the library installed in GC/MS device. 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 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. 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

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

Synthesis and characterization of Ca/SBA-15 solid base catalyst and its application in biodiesel production via waste cooking oil was written by Hou, Qian-fen;Zhang, Qian-qian;Guo, Hua-rong;Li, Ling. And the article was included in Huaxue Yu Shengwu Gongcheng in 2015.Computed Properties of C20H40O2 The following contents are mentioned in the article:

Ca/SBA-15 Solid base catalyst was prepared by sol-gel method, using tetra-Et orthosilicate as silicon source, calcium acetate as calcium source and P123 as template agent. The related physicochem. properties of the catalyst were characterized by XRD, FTIR, TEM and N₂ adsorption-desorption isotherms. Then it was used in the transesterification reaction of waste cooking oil and methanol to produce biodiesel. Results showed that, catalyst 0.2Ca/SBA-15-700 with Ca/Si molar ratio of 0.2, calcined at 700°C exhibited the best catalytic activity, which could well maintain the original two-dimensional hexagonal order mesoporous structure and had a BET sp. surface area of 406.7 m²·g^-1. The yield of biodiesel could reach 94.7% under the optimum conditions of methanol/oil molar ratio of 12, catalyst dosage of 5%, reaction temperature of 65°C and reaction time of 7 h in N₂ atmosphere. After being washed and dried, the catalyst could be directly reutilized in the next circle without reactivation. After the fifth circle, the catalytic activity decreased but the yield of biodiesel was still above 86%. 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. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. 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.Computed Properties of C20H40O2

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

Chemical modification of montan resin by peracetic acid and agricultural application of its modified products was written by Zhang, Hui-Fen;Qin, Hao;Li, Bao-Cai;Qin, Yi;Wang, Huan-Hong;Zhang, Bing;Zhang, Mi. And the article was included in Journal of the Air & Waste Management Association in 2020.Product Details of 1731-94-8 The following contents are mentioned in the article:

This study attempted to chem. modify MR using the oxidation of peracetic acid, resulting that the MR hydrophilicity was significantly improved, and a water-soluble product (WSP) was obtained. The optimized oxidation conditions of MR, including the reaction temperature (X1), reaction time (X2), weight ratio of oxidant and montan resin (X3), and oxidant concentration (X4), were determined using single-factor experiments and response surface anal. The modification degree was evaluated using elemental and oil-water partition coefficient analyses, IR (IR) spectroscopy, and gas chromatog.-mass spectrometry (GC-MS), revealing that the oil-water partition coefficient of the modified product decreased and that the number of chem. constituents with oxygen-containing functional groups clearly increased after modification. Furthermore, the WSP was tested its effects on germination and seedling growth of the wheat seed. Compared with the control group, the WSP showed a promoting effect on the growth and germination of wheat. The WSP concentrations of 600 mg·L-1 and 300 mg·L-1 had the most substantial effect on the root and seedling growth of wheat, resp. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8Product Details of 1731-94-8).

Methyl nonadecanoate (cas: 1731-94-8) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. 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.Product Details of 1731-94-8

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

Long-chain syn-1-phenylalkane-1,3-diyl diacetates, related phenylalkane derivatives, and sec-alcohols, all possessing dominantly iso-branched chain termini, and 2/3-methyl-branched fatty acids from Primula veris L. (Primulaceae) wax was written by Radulovic, Niko S.;Zivkovic Stosic, Milena Z.. And the article was included in Phytochemistry (Elsevier) in 2021.Computed Properties of C20H40O2 The following contents are mentioned in the article:

Herein, the results of the first study of non-flavonoid constituents of aboveground surface-wax washings of Primula veris L. (Primulaceae) are presented. Chromatog. of the washings yielded a minor fraction composed of n-, iso-, and anteiso-series of long-chained syn-1-phenylalkane-1,3-diyl diacetates, 3-oxo-1-phenylalkan-1-yl acetates, 1-phenylalkane-1,3-diones, 1-hydroxy-1-phenylalkan-3-ones, sec-alcs. (2- to 10-alkanols), and n-, iso-, anteiso-, 2-methylalkanoic and 3-methylalkanoic acids; 118 of these constituents represent up to now unreported natural compounds The structural/stereochem. elucidation was accomplished by the synthesis of authentic standards, derivatization reactions, the use of gas chromatog. retention data and detailed 1D and 2D-NMR analyses of the obtained complex chromatog. fraction. Primula veris produces unusually high amounts of branched long-chained metabolites (>60%) except for the fatty acids where the percentage of branched isomers is comparable to the ones with n-chains. Noteworthy is the fact that long-chained α- and β-Me substituted fatty acids were detected herein for the first time in the kingdom Plantae. 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. 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.Computed Properties of C20H40O2

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

Rapid identification of 15 effective components of common cold medicine with MRM by LC-MS/MS was written by Jiang, Jian-guo;Zhang, Xi-ru;Zhang, Yi-hua;Song, Geng-shen. And the article was included in Yaoxue Xuebao in 2013.Safety of 4-Acetamidophenyl 2-acetoxybenzoate The following contents are mentioned in the article:

This paper reported the establishment of a method for rapid identification of 15 effective components of common cold medicine(paracetamol, aminophenazone, pseudoephedrine hydrochloride, methylephedrine hydrochloride, caffeine, amantadine hydrochloride, phenazone, guaifenesin, chlorphenamine maleate, dextromethorphan hydrobromide, diphenhydramine hydrochloride, promethazine hydrochloride, propyphenazone, benorilate and diclofenac sodium) with MRM by LC-MS/MS. The samples were extracted by methanol and were separated by a Altantis T3 column within 15 min with a gradient of acetonitrile-ammonium acetate(containing 0.25% glacial acetic acid), a tandem quadrupole mass spectrometer equipped with electrospray ionization source(ESI) was used in pos. ion mode, and multiple reaction monitoring(MRM) was performed for qual. anal. of these compounds The min. detectable quantity was 0.33-2.5μg·kg^-1 of the 15 compounds The method is simple, accurate and has good reproducibility for rapid identification of many components in the same chromatog. condition, and provides a reference for qual. anal. of illegally added chems. in common cold medicine. This study involved multiple reactions and reactants, such as 4-Acetamidophenyl 2-acetoxybenzoate (cas: 5003-48-5Safety of 4-Acetamidophenyl 2-acetoxybenzoate).

4-Acetamidophenyl 2-acetoxybenzoate (cas: 5003-48-5) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. 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.Safety of 4-Acetamidophenyl 2-acetoxybenzoate

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

Enhancing the nutritional and quality profiles of buckwheat noodles: Studies on the effects of methods of milling and improvers was written by Thanushree, M. P.;Sudha, M. L.;Martin, Asha;Vanitha, T.;Kasar, Crassina. And the article was included in LWT–Food Science and Technology in 2022.Recommanded Product: Glyceryl monostearate The following contents are mentioned in the article:

This study investigated the impact of methods of milling and improvers on the quality characteristics and nutritional properties of buckwheat noodles made from fine flour (FFN) and whole groat flour (WGFN). The FFN was found to be lighter in color with a finer and continuous structure while WGFN which has higher fiber content exhibited a coarser and disrupted pattern under SEM. The amount of rutin detected in WGFN was significantly higher (998.22 mg/100 g) than that of FFN (148.21 mg/100 g). Addition of gluten powder at 2-4% levels decreased the cooking loss while guar gum and xanthan gum resulted in the highest water absorption capacity. Rather than the individual emulsifiers, their combination (SSL + GMS) had a better effect on the overall quality. The contents of dietary fiber, slowly digestible starch, resistant starch, total polyphenol, total flavonoid and minerals were higher in WGFN. The most abundant essential amino acids were leucine (7.23-8.52%), phenylalanine (6.93-7.27%) and lysine (5.83-6.03%). This study confirmed the possible use of high buckwheat level (75%) in producing buckwheat noodles with enhanced nutritional profile. This study involved multiple reactions and reactants, such as Glyceryl monostearate (cas: 31566-31-1Recommanded Product: Glyceryl monostearate).

Glyceryl monostearate (cas: 31566-31-1) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. 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: Glyceryl monostearate

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

Generating biocrude from partially defatted Cryptococcus curvatus yeast residues through catalytic hydrothermal liquefaction was written by Bi, Zheting;Zhang, Ji;Zhu, Zeying;Liang, Yanna;Wiltowski, Tomasz. And the article was included in Applied Energy in 2018.Recommanded Product: 1731-94-8 The following contents are mentioned in the article:

Research and development on hydrothermal liquefaction (HTL) of wet microbial biomass have been on a dramatic rise. Although microalgae have been the main feedstocks, investigations of HTL of yeast species were few, not to mention yeast biomass cultivated on cellulosic hydrolyzates. In this study, six catalysts were tested regarding their effects on yields of biocrude and biochar from partially defatted Cryptococcus curvatus. Among the six, K₂CO₃ at 350 and 300°C and KOH at 350⁰C led to the highest yield of biocrude, 68.9%, 63.9% and 67.0%, resp. These biocrudes had low content of sulfur and nitrogen but high HHVs in the range of 36.9 and 39.0MJ/kg. The biocrudes from the top three running conditions were dominated by fatty acids and fatty acid esters based on GC/MS identification. The corresponding aqueous phase samples contained high concentrations of fatty acids among all that were identifiable. The successful HTL of the partially defatted yeast cell residues promises a platform where lignocellulosic sugars can be converted to biodiesel from yeast cell lipids and biocrude from the remaining yeast cells. 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, including apples, durians, pears, bananas, pineapples, and strawberries. 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.Recommanded Product: 1731-94-8

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

Nanostructured-lipid carriers-Chitosan hydrogel beads carrier system for loading of resveratrol: A new method of topical application was written by Wu, Bi;Li, Yang;Li, Yuan Y.;Shi, Zhi H.;Bian, Xiao H.;Xia, Qiang. And the article was included in Journal of Biomaterials Applications in 2022.Related Products of 31566-31-1 The following contents are mentioned in the article:

The aim of this study was to develop nanostructured-lipid carriers (NLC) encapsulated by Chitosan hydrogel beads for the efficient topical carrier. Dynamic light scattering (DLS), X-ray diffraction (XRD), Differential scanning calorimetry (DSC), and attenuated total reflectance-Fourier transform IR spectroscopy (ATR-FTIR) were conducted to study the influence of the encapsulation on the characteristic of resveratrol-loaded NLC, and the results showed that there was no impact on resveratrol-loaded NLC. Chitosan hydrogel beads could significantly improve the phys. stability of resveratrol-loaded NLC. In vitro release study revealed that resveratrol-loaded NLC-Chitosan hydrogel beads had a more significant sustained-release effect on resveratrol. In vitro transdermal studies suggested that the skin permeation of resveratrol was promoted by the effect of Chitosan hydrogel beads and increased resveratrol distribution in the skin. In vitro cytotoxicity showed that resveratrol-loaded NLC-Chitosan hydrogel beads did not exert a hazardous effect on L929 cells. Hence, NLC-Chitosan hydrogel beads might be a promising method for topical applications of resveratrol. This study involved multiple reactions and reactants, such as Glyceryl monostearate (cas: 31566-31-1Related Products of 31566-31-1).

Glyceryl monostearate (cas: 31566-31-1) 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. 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 31566-31-1

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