Tag: 200-300

Rakkan, Thanaphorn;Chana, Netnapa;Chirapongsatonkul, Nion;U-taynapun, Kittichon;Sangkharak, Kanokphorn published 《Screening and Identification of Newly Isolated Basic Red 9-Degrading Bacteria from Textile Wastewater and Their Ability to Produce Medium-Co-Long-Chain-Length Polyhydroxyalkanoates》 in 2022. The article was appeared in 《Journal of Polymers and the Environment》. They have made some progress in their research.SDS of cas: 112-62-9 The article mentions the following:

Newly isolated Basic Red 9-degrading bacteria were isolated from textile wastewater using a pretreatment method. Nine strains were isolated; however, only five strains accumulated polyhydroxyalkanoates (PHAs). Thereafter, PHA-producing strains were identified through 16S rDNA sequencing anal. and phylogenetic evaluation and were found to belong to Enterobacter with 100% identification. The five isolated strains were incubated with a PHAs-producing medium containing 100 mg/l Basic Red 9 (BR9) to study decolorization efficiency, and PHAs production Enterobacter sp. strains TS3 and TS1L effectively decolorized the BR9 dye with degradation rates of 63.43% and 79.15%, resp. PHAs production from TS3 and TS1L was also observed to be 75.34% and 72.32% of dry cell weight (DCW), resp. Furthermore, Enterobacter sp. strains TS3 and TS1L accumulated medium-co-long-chain-length PHAs (mcl-co-lcl PHAs). This is the first report using Enterobacter strains to degrade BR9 dyes from textile wastewater and to assess their ability to produce mcl-co-lcl PHAs. The experimental procedure involved many compounds, such as Methyl oleate (cas: 112-62-9) .

Methyl oleate(cas: 112-62-9) is a fatty acid methyl ester resulting from the formal condensation of the carboxy group of oleic acid with methanol.SDS of cas: 112-62-9 Methyl oleate(cas: 112-62-9) is an intermediate for detergents, emulsifiers, wetting agents, stabilizers, textile treatments, plasticizers for duplicating inks, rubbers, waxes etc.

Reference:
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Related Products of 106-02-5In 2022, Kazemi Targhi, Negar;Tavakoli, Omid;Nazemi, Ali Hekmat published 《Co-pyrolysis of lentil husk wastes and Chlorella vulgaris: Bio-oil and biochar yields optimization》. 《Journal of Analytical and Applied Pyrolysis》published the findings. The article contains the following contents:

The ever-increasing demand for fossil fuels has led to environmental issues and depletion of energy resources, as a consequence, a growing interest in biomass as a promising renewable and sustainable feedstock for biofuels production is developing. In this work, lentil husks (agricultural wastes) and Chlorella vulgaris (microalgae) were selected to investigate their interaction during co-pyrolysis process. Using a response surface methodol. (RSM), a series of experiments were designed and carried out in a fixed bed reactor varying the temperature of 400-600°;C, heating rate of 5-25°;C/min and algae to husk blend ratios of 0, 25, 50, 75, 100 wt% at constant flow rate of argon carrier gas, 0.4 L min-1. The yield of Bio-oil and biochar as co-pyrolysis products were studied both quant. and qual. The results unraveled a significant improvement on bio-oil yield by addition of C. vulgaris to lentil husk. Bio-oil yield increased from 13.8% to 20.8% by increasing algae content from 0% to 100% (T = 500°;C, HR = 15°;C min-1). While at T = 600°;C, the gas yield increased to 40.15%. and lower temperature (400°;C), favored biochar formation (39.5%), finally optimization results could lead to bio-oil yield of 18% (T = 479°;C, HR = of 16°;C min-1, R = 54%). The quality of the product at optimized level was featured by a rise in the carbon and a decrease in the oxygen content of bio-oil, and a bio-oil with improved higher heating value was obtained. The results of volatile products analyzed by Gas chromatog.-mass spectrometry (GC-MS) showing that, the co-pyrolytic oil was rich in alkanes and aromatics compounds Synergistical interactions between C. vulgaris and lentil husk, showed that alcs., ketones and esters went through a remarkable reduction and phenols formation as valuable chem. compounds was improved. To complete the study, the researchers used Oxacyclohexadecan-2-one (cas: 106-02-5) .

Oxacyclohexadecan-2-one(cas:106-02-5) is a monomer used to make PGA-co-pentadecalactone polymers to be used in the development of directly compressed prolonged release tablets of slightly soluble drugs such as ketoprofen.Related Products of 106-02-5It may be used for the synthesis of poly(pentadecanolide) (PPDL) by Novozyme 435 catalyzed ring-opening polymerization.

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Reference of Methyl oleate《Cassia auriculata Linn. extracts induce apoptosis and cell cycle arrest of A549 lung cancer cell lines: An in vitro approach》 was published in 2022. The authors were Rajagopal, Anitha;Rajakannu, Subashini, and the article was included in《South African Journal of Botany》. The author mentioned the following in the article:

Cassia auriculata is an ethnobotanically important traditional medicinal plant of tropical Asia and recently, phytochems. and their derivatives have gained scientific attention for their use as agents in cancer treatment and prevention. The aerial parts of Cassia auriculata plant were subjected to successive cold maceration to yield four fractions viz., n-hexane, dichloromethane, Et acetate, and ethanol extract The extracts were fractionated by GC-MS (Gas Chromatog.-Mass Spectrometry) and HPLC (High-Performance Liquid Chromatog.) anal. for their phytochem. content. The chromatog. techniques revealed the presence of mainly the flavonoid compounds like flavone, chrysin, and quercetin. The anti-proliferative properties of ethanolic extract of C. auriculata on A549 human lung cancer cells have been reported. The cancer cell survival rate (MTT 3- [4, 5- dimethythiazol-2-yl] 2, 5-diphenyl tetrazolium bromide) was found to be reduced with lung cancer cells (IC₅₀ 26.24 mug/mL) when treated with C. auriculata ethanol extract (CAEE) when compared to the non-cancerous cells L132. The toxicity of the extract on L132 cells was low (IC₅₀ 55.78 mug/mL). The mode of cell death induced by CAEE on A549 cells was examined by various fluorescent staining techniques and characteristic nuclear and morphol. changes for apoptosis were evaluated. The expression of caspase 9 activity was documented, which might have triggered cell death through apoptosis by the activation of caspase 9 in the ethanolic fraction treated A549 cells. Cell cycle anal. of treated A549 cells revealed a promising S phase cell cycle arrest. The flavonoid compounds identified in the present study might be responsible for the remarkable anticancer and other activities of the plant. From these findings, the plant C. auriculata can be further exploited to develop promising candidate mols., particularly for lung cancer chemotherapy. And Methyl oleate (cas: 112-62-9) was used in the research process.

Methyl oleate(cas: 112-62-9) is an intermediate for detergents, emulsifiers, wetting agents, stabilizers, textile treatments, plasticizers for duplicating inks, rubbers, waxes etc.Reference of Methyl oleate It is also used in biochemical research as a chromatographic reference standard.

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Computed Properties of C10H16O4《The preparation of ethyl 1,1-cyclobutanedicarboxylate》 was published in 1953. The authors were Raik, S. E.;Kazanskii, B. A., and the article was included in《Vestnik Moskovskogo Universiteta》. The author mentioned the following in the article:

During the condensation of CHNa(CO₂Et)₂ (I) with Br(CH₂)₃Cl a reversible side reaction between I and Cl(CH₂)₃CNa(CO₂Et)₂ (II) is known to take place. II was prevented from separating out and the yield of di-Et 1,1-cyclobutanedicarboxylate was increased to 60% (from 35 to 40%, cf. C.A. 37, 4705.6) by employing a mixture of C₆H₆ and EtOH as solvent. I is only slightly soluble in cold C₆H₆ but its solubility increases with higher temperature, and particularly in the presence of CH₂(CO₂Et)₂, thus controlling the rate of reaction. Cf. Sidgwick and Brewer, C.A. 20, 740. PrOH and iso-PrOH were unsuccessful in replacing EtOH. To complete the study, the researchers used Diethyl cyclobutane-1,1-dicarboxylate (cas: 3779-29-1) .

Diethyl 1,1-cyclobutanedicarboxylate(cas:3779-29-1 Computed Properties of C10H16O4) reacts with silicon to form diethyl esters and magnesium to form magnesium salts. The reaction time for this compound is short, which may be due to its ability to undergo debromination.

Reference:
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Cincotta, Fabrizio;Verzera, Antonella;Prestia, Ottavia;Tripodi, Gianluca;Lechhab, Wafae;Sparacio, Antonio;Condurso, Concetta published 《Influence of leaf removal on grape, wine and aroma compounds of Vitis vinifera L. cv. Merlot under Mediterranean climate》. The research results were published in《European Food Research and Technology》 in 2022.Recommanded Product: 124-06-1 The article conveys some information:

Merlot is one of the most cultivated cultivars in the world since it easily adapts to different climatic conditions. Leaf removal (LR) is commonly used for red berry varieties but in cold wine-growing areas and nothing has been reported on the effects of LR on Merlot cultivated under Mediterranean climate. The aim of the research is to evaluate the influence of this technique on grape and wine quality as well as wine aroma potential of Merlot cultivated in Sicily. Vines were subjected to LR for two consecutive years, and productivity and chem. parameters were monitored in grapes, whereas chem. composition and volatile aroma compounds, analyzed by gas chromatog. mass spectrometry, were monitored in wines. LR pos. influenced the plant yield, increased the sugar content and decreased the acidity in grapes at harvest. The wines of the defoliated treatment showed a higher content of total polyphenols and anthocyanins, higher color intensity, and lower color hue. Merlot wines obtained under Mediterranean climate were characterized by a high amount of esters and varietal aromas and the content of most of volatiles were even increased by the LR with pos. effects on the aroma potential of Merlot wines. The vintage affected almost all the studied parameters with the warmer and dryer vintage enhancing the LR effects on grapes and wines. This is of great interest in the light of the climate changes towards the global warming and the increasing aridity of the Mediterranean area.Ethyl tetradecanoate (cas: 124-06-1) were involved in the experimental procedure.

Ethyl tetradecanoate(cas: 124-06-1) is a natural product found in Psidium guajava, Litchi chinensis, and other organisms.Recommanded Product: 124-06-1Ethyl myristate is a long-chain fatty acid ethyl ester resulting from the formal condensation of the carboxy group of myristic acid with the hydroxy group of ethanol.

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Ester – Wikipedia,
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Palinko, Istvan;Szabo, Pal Tamas;Torok, Bela;Kele, Zoltan;Kapocsi, Iren published 《Fragmentation of cyclobutane derivatives upon electron impact: transformation pathways elucidated by mass spectrometric methods and semiempirical quantum chemical calculations》 in 1998. The article was appeared in 《Rapid Communications in Mass Spectrometry》. They have made some progress in their research.Related Products of 3779-29-1 The article mentions the following:

The fragmentation behavior of cyclobutane derivatives (carboxylic acids, esters, cyclobutanediols, silyl ethers of the hydroxy compounds) was first studied by the GC/MS method under electron-impact (EI) ionization. Then, in order to establish the sequence of transformations, MS/MS, and in situ deuteration as well as accurate mass measurements, were performed. Anal. of these measurements revealed characteristic transformation pathways: (1) the substituents were easily cleaved; (2) in most cases the cyclobutane ring was opened with the rupture of C-C bonds opposite to each other; (3) upon ring opening, the most substituted ring C-C bond was cleaved 1st and preferentially; and (4) primary fragmentation was followed by secondary reactions including further cleavage of the ions as well as rearrangements. Sym. ring scission was observed for cyclobutanediols and their silyl ethers, providing only 1 primary fragment with m/z half that of the mol. weight This type of fragmentation was consistent with semiempirical AM1 calculations And Diethyl cyclobutane-1,1-dicarboxylate (cas: 3779-29-1) was used in the research process.

Diethyl cyclobutane-1,1-dicarboxylate (cas:3779-29-1
) is a solid catalyst that can be used in the synthesis of alkylating agents. It is used in the manufacture of cyclopropyl ketones and has been shown to exhibit anticancer properties.

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

Weeks, John;Li, Albert P.;Doshi, Utkarsh;Johanning, Karla;Guiney, Patrick D. published 《In vitro evaluation of the metabolic stability of nine fragrance chemicals in trout and human hepatocytes》. The research results were published in《Journal of Applied Toxicology》 in 2020.Formula: C15H28O2 The article conveys some information:

In vitro metabolic stability of nine fragrance chems.: p-tolyl acetate, cashmeran, ethylene brassylate, celestolide, galaxolide, traseolide, ambretone, tonalide and pentadecanolide, was evaluated in trout and human hepatocytes. The compounds were incubated with trout hepatocytes at 12°C and human hepatocytes at 37°C. Quantification of compound disappearance with time was performed using gas chromatog./mass spectrometry. in vivo hepatic intrinsic clearance values were calculated from the in vitro data. Significant metabolism was observed with trout hepatocytes for five of the nine fragrance chems., while all nine were metabolized significantly with human hepatocytes. Previously published models were used to examine expected bioaccumulation and persistence in whole organisms. Calculated half-lives due to metabolism of the nine chems. are significantly shorter for humans than trout: <1 h and <1 day, resp. For all chems. with demonstrated hepatic metabolism, the models indicate a lack of accumulation. For those where metabolism was demonstrated in trout, calculated bioconcentration factors would not be classified as bioaccumulative under prevailing regulatory systems.Oxacyclohexadecan-2-one (cas: 106-02-5) were involved in the experimental procedure.

Oxacyclohexadecan-2-one(cas:106-02-5) is a natural product found in Lonicera japonica and Angelica archangelica.Formula: C15H28O2 It is a macrocyclic lactone that can be used as a flavoring agent and fragrance ingredient due to its musk flavor/odor.

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

HPLC of Formula: 124-06-1《Gas chromatography study of N-hexane and chloroform fractions of ethanol extract of Melastoma malabathricum L. leaves: an in vitro study of antioxidant and SPF values》 was published in 2022. The authors were Apridamayanti, P.;Pratiwi, L.;Sari, R., and the article was included in《International Journal of Pharmacy and Pharmaceutical Sciences》. The author mentioned the following in the article:

This research aimed to qual. determine the chem. compound constituents, antioxidant capacity, and sun protection factor (SPF) value of extract of the leaves of Melastoma malabathricum L. using GC-MS. The detected compounds were identified by processing the raw GC-MS data using ChemStation software and comparing results with the NIST mass spectral database. Antioxidant capacity was measured using 1,2-diphenyl-2-picrylhydrazyl (DPPH) radical-scavenging and ferric-reducing antioxidant power (FRAP) assays. The SPF contained in the n-hexane and chloroform fractions separated from the ethanol extract of the leaves of Melastoma malabathricum L was identified. The GC-MS test results revealed that 21 and 29 peaks of separation occurred in the n-hexane and chloroform fractions. The highest peak values are hexadecanoic acid Me ester (a fatty acid group also known as palmitic acid) (100%) in the n-hexane and chloroform fractions. The highest chem. content in n-hexane and chloroform fractions was obtained at 20 min. The thin-layer chromatog. (TLC) results indicated that the n-hexane and chloroform fractions contained steroid and terpenoid compounds The antioxidant capacity test using DPPH showed that the n-hexane and chloroform fractions of ethanol extract of the leaves of Melastoma malabathricum L had IC50 values of 49.2±7.9 g/mL and 11.3±3.65 g/mL, resp. Using FRAP, the IC50 values of the n-hexane and chloroform fractions were identified as 365.2±133.6 g/mL and 80.8±8.9 g/mL, resp., categorizing them as strong and weak antioxidants. SPF testing produced SPF values for the n-hexane and chloroform fractions of ethanol extract of Melastoma malabathricum L leaves of 11.7±0.1 and 21±0.4, resp. The study results show that the antioxidant activity and the SPF values of the chloroform fraction are greater than those of the n-hexane fraction. In conclusion, the n-hexane and chloroform fractions are found to have antioxidant properties in the weak and solid categories and the ability to protect against sunlight in the vulnerable category.Ethyl tetradecanoate (cas: 124-06-1) were involved in the experimental procedure.

Ethyl tetradecanoate(cas: 124-06-1) is a labeled component from essential oil of natural hawthorn perfume. Also frequently used in cosmetics, soaps, and flavorings.HPLC of Formula: 124-06-1Ethyl myristate is a long-chain fatty acid ethyl ester resulting from the formal condensation of the carboxy group of myristic acid with the hydroxy group of ethanol.

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

Quality Control of Oxacyclohexadecan-2-one《Quadruple-shape hydrogels》 was published in 2019. The authors were Balk, Maria;Behl, Marc;Lendlein, Andreas, and the article was included in《Smart Materials and Structures》. The author mentioned the following in the article:

The capability of directed movements by two subsequent shape changes could be implemented in shape-memory hydrogels by incorporation of two types of crystallizable side chains. While in nonswollen polymer networks even more directed movements could be realized, the creation of multishape hydrogels is still a challenge. We hypothesize that a quadruple-shape effect in hydrogels can be realized, when a swelling capacity almost independent of temperature is generated, whereby directed movements could be enabled, which are not related to swelling. In this case, entropy elastic recovery could be realized by hydrophilic segments and the fixation of different macroscopic shapes by means of three semi-crystalline side chains generating temporary crosslinks. Monomethacrylated semicrystalline oligomers were connected as side chains in a hydrophilic polymer network via radical copolymerization Computer assisted modeling was utilized to design a demonstrator capable of complex shape shifts by creating a casting mold via 3D printing from polyvinyl alc. The demonstrator was obtained after copolymerization of polymer network forming components within the mold, which was subsequently dissolved in water. A thermally-induced quadruple-shape effect was realized after equilibrium swelling of the polymer network in water. Three directed movements were successfully obtained when the temperature was continuously increased from 5°C to 90°C with a recovery ratio of the original shape above 90%. Hence, a thermally-induced quadruple-shape effect as new record for hydrogels was realized. Here, the temperature range for the multi-shape effect was limited by water as swelling media (0°C-100°C), simultaneously distinctly separated thermal transitions were required, and the overall elasticity indispensable for successive deformations was reduced as result of partially chain segment orientation induced by swelling in water. Conclusively the challenges for penta- or hexa-shape gels are the design of systems enabling higher elastic deformability and covering a larger temperature range by switching to a different solvent. The experimental procedure involved many compounds, such as Oxacyclohexadecan-2-one (cas: 106-02-5) .

Oxacyclohexadecan-2-one(cas:106-02-5) is a monomer used to make PGA-co-pentadecalactone polymers to be used in the development of directly compressed prolonged release tablets of slightly soluble drugs such as ketoprofen.Quality Control of Oxacyclohexadecan-2-oneIt may be used for the synthesis of poly(pentadecanolide) (PPDL) by Novozyme 435 catalyzed ring-opening polymerization.

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

Yeong, Siew Ping;Chan, Yen San;Law, Ming Chiat;Ling, Jordy Kim Ung published 《Improving cold flow properties of palm fatty acid distillate biodiesel through vacuum distillation》 in 2022. The article was appeared in 《Journal of Bioresources and Bioproducts》. They have made some progress in their research.SDS of cas: 112-62-9 The article mentions the following:

Palm fatty acid distillate (PFAD), a byproduct of refining process of crude palm oil can be used as a potential feedstock for biodiesel production However, the application of palm oil-based biodiesel is often hinder by its poor cold flow properties (CFP). Biodiesel fuel with poor CFP may crystallize and result in clogging of fuel lines, filters and injectors that cause engine operability problems. For that, a vacuum distillation method was designed and its feasibility and efficiency in improving the CFP was examined A total of 13.60wt% of total saturated fatty acid Me esters were successfully removed from the PFAD biodiesel, resulting in the improvement of the cloud point (CP), cold filter plugging point (CFPP) and pour point (PP) of PFAD biodiesel from 20°C, 19°C, and 15°C to 13°C, 11°C, and 9°C, resp. It is remarkable that the improved CFPP satisfied the requirements for grade C summer biodiesel for temperate climates in EN 14212 standard Addnl., Sarin (U_FAME) empirical correlation was evaluated and it was found to have a good prediction of CFP for PFAD biodiesel, with lower than 2°C deviation.Methyl oleate (cas: 112-62-9) were involved in the experimental procedure.

Methyl oleate(cas: 112-62-9) is a fatty acid methyl ester resulting from the formal condensation of the carboxy group of oleic acid with methanol.SDS of cas: 112-62-9 Methyl oleate(cas: 112-62-9) is an intermediate for detergents, emulsifiers, wetting agents, stabilizers, textile treatments, plasticizers for duplicating inks, rubbers, waxes etc.

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