Tag: 100-200

On April 10, 2020, Phan, Quoc Thang; Patil, Maheshkumar Prakash; Tu, Trang T. K.; Le, Cuong M. Q.; Kim, Gun-Do; Lim, Kwon Taek published an article.HPLC of Formula: 6038-19-3 The title of the article was Polyampholyte-grafted single walled carbon nanotubes prepared via a green process for anticancer drug delivery application. And the article contained the following:

We report a novel process for surface modified single-walled carbon nanotubes (SWCNTs) as drug nanocarriers by using facile and green synthetic methods. Firstly, polyampholytic alternating polymers having furfuryl amine and 3-(dimethylamino)-1-propylamine as functional groups were prepared via one-pot thiol-ene chem. in sustainable conditions. The obtained polymers were then used to a direct functionalization onto the surface of SWCNTs through Diels-Alder click reaction conducted in aqueous media under ultrasonication. The resulting hybrid was characterized by 1H NMR, FT-IR, TGA and UV-vis measurements. The hybrid improved the drug loading content up to 150 wt%, indicating that they are potential doxorubicin (DOX) delivery nano-vehicles. Furthermore, the in-vitro drug release profiles showed that there was a burst release of DOX at pH 5.5 under an acidic condition in microenvironment of tumor cells, in contrast with a lower release rate at pH 7.4 in the physiol. condition. Cell viability assays demonstrated the low cytotoxicity against the normal HEK293 cell of SWCNT hybrids, while they exhibited a high cytotoxic activity towards HeLa cancer cells. These evidences revealed the promising SWCNT-based drug carrier for tumor-targeting chemotherapy release in the cancer therapy. The experimental process involved the reaction of 3-Aminodihydrothiophen-2(3H)-one hydrochloride(cas: 6038-19-3).HPLC of Formula: 6038-19-3

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On July 31, 2020, Li, Chunmei; Su, Zhengzhou; Tan, Jiaojun; Xue, Ying; Yang, Yumin; Yin, Hangyu; Zhang, Guoxian; Zhang, Qiuyu published an article.COA of Formula: C4H8ClNOS The title of the article was Autocatalyzed interfacial thiol-isocyanate click reactions for microencapsulation of ionic liquids. And the article contained the following:

Abstract: In recent years, ionic liquids (ILs) have received increasing attention because of low vapor pressure, environment friendliness, good thermal and chem. stability and strong solubility However, the liquid nature and high viscosity restrict their applications in some fields. Encapsulation of ILs is an attractive way to handle them easily. Herein, we proposed a facile method to prepare IL-loaded microcapsules using IL-in-oil emulsion as template, poly(amide-thioether) as surfactant and interfacial thiol-isocyanate click reaction for shell formation. In this system, core materials ILs were proved to be able to catalyze thiol-isocyanate reaction without side products, which significantly simplified the preparation process of microcapsules. The shell of the microcapsules was composed of polythiourethane and poly(amide-thioether), which provided a strong protection for ILs. In addition, compared with IL-in-water emulsion, the application of IL-in-oil emulsion avoided the side reactions of the highly active isocyanate. The IL content of the resulted microcapsules could reach as high as 70 weight%. It was also demonstrated that the proposed encapsulation technol. was suitable for ILs with different polarities. This work provides an efficient way to encapsulate ILs using emulsion template, which will make ILs find widespread applications across various fields. The experimental process involved the reaction of 3-Aminodihydrothiophen-2(3H)-one hydrochloride(cas: 6038-19-3).COA of Formula: C4H8ClNOS

The Article related to interfacial thiol isocyanate click reaction microencapsulation ionic liquid, Placeholder for records without volume info and other aspects.COA of Formula: C4H8ClNOS

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On January 31, 2022, Zhou, Chengzhe; Zhu, Chen; Tian, Caiyun; Xu, Kai; Huang, Linjie; Shi, Biying; Lai, Zhongxiong; Lin, Yuling; Guo, Yuqiong published an article.Formula: C9H11NO2 The title of the article was Integrated volatile metabolome, multi-flux full-length sequencing, and transcriptome analyses provide insights into the aroma formation of postharvest jasmine (Jasminum sambac) during flowering. And the article contained the following:

Jasmine [Jasminum sambac (L.) Aiton] flowers usually bloom and release their fragrance at night. However, the underlying regulatory mechanisms of aroma formation during flowering in postharvest jasmine are still poorly understood. Here, we profiled the volatile metabolome, multi-flux full-length sequencing, and transcriptome anal. to investigate volatile biosynthesis and global transcriptomic changes in postharvest flowering jasmine. A total of 102 volatiles were identified. Of these, 16 volatiles were considered key odorants of jasmine flowers. Linalool, a-farnesene, D-nerolidol, geraniol, α-cadinol, benyzl alc., benzaldehyde, benzyl acetate, benzyl benzoate, 3-hexen-1-ol benzoate, and (Z)-3-hexen-1-ol acetate play decisive roles in the typical jasmine fragrance, while benzeneacetaldehyde, benzoic acid, Me anthranilate, Me 2-(methylamino) benzoate, and (E)-2-hexenal modify the aroma of jasmine. Meanwhile, we built the first reference full-length transcriptome of postharvest jasmine flowers, which had 366,081 non-redundant isoforms. Among them, 280,326 (76.57%) were annotated with at least one hit in the NT, NR, Swissprot, KEGG, KOG, Pfam, and GO databases. Combined with second-generation transcriptome anal., we identified 52 differentially expressed transcripts (DETs) involved in terpenoid metabolic pathways and 28 DETs involved in phenylpropanoid/benzenoid metabolic pathway, and 31 β-glucosidase transcripts may be related to aroma formation of postharvest jasmine during flowering. In addition, the expression of 42 heat shock protein (HSP) transcripts was pos. correlated with the content of 11 key odorants, as revealed by weighted gene co-expression network anal. (WGCNA). The present results advance the knowledge of the regulatory mechanism of aroma formation in postharvest jasmine during flowering and provide an abundant genetic resource for further studies on gene discovery in jasmine. The experimental process involved the reaction of Methyl N-Methylanthranilate(cas: 85-91-6).Formula: C9H11NO2

The Article related to jasminum sambac volatile metabolome transcriptome aroma formation flowering, Placeholder for records without volume info and other aspects.Formula: C9H11NO2

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On July 31, 2022, Anaya, Juan Alberto; Lizama, Victoria; Garcia, Maria Jose; Alvarez, Inmaculada published an article.COA of Formula: C8H14O4 The title of the article was Applying rosemary extract and caffeic acid to modify the composition of Monastrell wines. And the article contained the following:

This work studies the effect of applying rosemary extract and caffeic acid on the polyphenolic and aromatic composition of Monastrell wines, as well as the influence of traditional winemaking or incorporating prefermentative maceration. For this purpose, three treatments were carried out in triplicate. In one of them, rosemary extract was applied on the clusters 10 days before harvest, caffeic acid was applied in the same way in another, and, finally, this acid was applied to grape before crushing. Each treatment was run by both traditional vinification and vinification with prefermentative maceration. After making wines, they were monitored for 12 mo after fermentation The application of rosemary extract, and that of caffeic acid but to a lesser extent, increased the color, the concentration of anthocyanins, and the percentage of polymerized anthocyanins, while prefermentation maceration gave rise to wines with a higher concentration of condensed tannins and polyphenols. Applying rosemary extract and caffeic acid in the vineyard also increased the concentration of esters and other compounds that favor wine aromatic quality, which was also enhanced by prefermentative maceration. The experimental process involved the reaction of Diethyl succinate(cas: 123-25-1).COA of Formula: C8H14O4

The Article related to monastrell wine polyphenol aromatic compound rosemary extract caffeic acid, Placeholder for records without volume info and other aspects.COA of Formula: C8H14O4

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Khalid, Khalid A. published an article in 2021, the title of the article was Changes in Lime Essential Oils and Their Constituents Due to Environmental Variations at Agrarian Locations.Related Products of 85-91-6 And the article contains the following content:

Lime essential oil (EO) is rich in different biol. properties as an antiseptic and antimicrobial. Agrarian locations (ALs) in Egypt are characterized by different environmental characteristics that affect the content and composition of lime EO and thus its biol. properties. Leaves, flowers, and peels of lime were collected from trees cultivated in three ALs, namely, north, central, and Upper Egypt. EO was separated by a hydro-distillation (HD) method; then analyzed using a Gas chromatog. (GC) and Gas chromatog./mass spectrometry (GC/MS) anal. The maximum contents of leaf (0.5 % and 1.3 mL/ 250g), flower (0.2 % and 0.5 mL/ 250g) and peel (0.3 % and 1.3 mL/ 250g) EOs were obtained from the samples collected from Upper Egypt. The major component of leaf and peel EOs were limonene. Di-Me anthranilate was the main compound of flower EO. Oxygenated monoterpenes (OM) was the main group in leaf and flower EOs, while a monoterpene hydrocarbon (MH) was the main group of peel EO. The maximum values of limonene from leaf EO (40.3 %) and limonene from peel EO (36.5 %), di-Me anthranilate (22.3 %), OM from flower EO (66.1 %), and MH (59.8 %) were obtained from the samples collected from Upper Egypt AL. The greatest amount of OM from leaf EO (55.9 %) has resulted from the samples collected from the central AL. It may be concluded that this study avail as a reference for choosing the adequate AL to extract the EO according to the compositions of interest. The experimental process involved the reaction of Methyl N-Methylanthranilate(cas: 85-91-6).Related Products of 85-91-6

The Article related to lime leaf flower essential oil limonene antiseptic antimicrobial activity, Placeholder for records without volume info and other aspects.Related Products of 85-91-6

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Ester – Wikipedia,
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Singh, Chingakham Brajakishore; Khumukcham, Nongalleima; Ajungla, T. published an article in 2017, the title of the article was GCMS based metabolic profiling of essential oil of Citrus macroptera Montruz. leaves and peel, assessment of in vitro antioxidant and antiinflammatory activity.Recommanded Product: Methyl N-Methylanthranilate And the article contains the following content:

The present investigation was designed for Gas Chromatog. Mass Spectrometry (GCMS) based metabolite profiling of Citrus macroptera Montruz. Leaves and peel oils followed by assessment of in vitro antioxidant and anti-inflammatory activity.Essential oil was extracted from leaves and peels of Citrus macroptera Montruz. The oil samples were subjected to GCMS anal. using Shimadzu GCMS-QP2010 equiped with an AOC-2oi auto-injector and AOC-2os autosampler units. In vitro antioxidant activities were evaluated using DPPH radical scavenging, reducing power and nitric oxide reducing method. In vitro anti-inflammatory activity was evaluated using protease inhibitory assay, heat induced haemolysis and albumin denaturation assay. Both the peels and leaves of Citrus macroptera Montruz. Yielded good amount of essential oil. 57 compounds each were identified from leaves as well as peel of C. macroptera. 10 common compounds have been detected in both the oil samples. Peels oil showed IC50 at 118.07 μg/mL and that of leaves showed IC50 at 252.93 μg/mL in DPPH (1, 1-diphenyl-2-picrylhydrazyl) assay. In reducing assay, peel and leaves oil showed IC50 at 122.5 μg/mL and 208.24 μg/mL. In albumin denaturation, the peels showed IC50 at 73.91 μg/mL and that of leaves showed IC50 at 87.48 μg/mL. Essential oil of peel showed more anti-oxidant and antiinflammatory activity than that of leaves essential oil. The experimental process involved the reaction of Methyl N-Methylanthranilate(cas: 85-91-6).Recommanded Product: Methyl N-Methylanthranilate

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On September 10, 2020, Payami, Elmira; Teimuri-Mofrad, Reza; Ahadzadeh, Iraj; Mohammadi, Reza published an article.Quality Control of 3-Acetyldihydrofuran-2(3H)-one The title of the article was A novel composite electrode material derived from bisferrocenyl-functionalized GO and PANI for high performance supercapacitor. And the article contained the following:

A novel bisferrocenyl based epoxy compound was synthesized to be used for further surface modification of graphene oxide (GO). GO surface was firstly modified with ethylenediamine (EDA) as an amine linker and then bisferrocenyl based epoxy compound was covalently grafted to the GO surface through the epoxide ring opening reaction. Afterwards, polyaniline (PANI) nanofibers were phys. adsorbed onto the surface of the modified GO to obtain a potentially high-performance nanocomposite for battery-type supercapacitor applications. The surface modification, crystalline structure, morphol., composition, and microstructure of the synthesized nanocomposites were further studied using FTIR spectroscopy (FTIR), XRD, field emission SEM (FESEM), energy dispersive X-ray (EDX) and N2 adsorption/desorption analyses, resp. Also, the electrochem. behavior of the synthesized nanocomposites was studied by electrochem. methods of cyclic voltammetry (CV), electrochem. impedance spectroscopy (EIS), galvanostatic charge-discharge measurement (GCD). The final nanocomposite electrode exhibited a charge storage capacity of 272 mAh g-1, and capacity retention of 89% over 3000 CV cycles. A high energy d. of 69.3 Wh kg-1 and high power d. of 6171 W kg-1 were achieved in a sym. two-electrode configuration. The experimental process involved the reaction of 3-Acetyldihydrofuran-2(3H)-one(cas: 517-23-7).Quality Control of 3-Acetyldihydrofuran-2(3H)-one

The Article related to composite electrode bisferrocenyl functionalized go pani supercapacitor, Placeholder for records without volume info and other aspects.Quality Control of 3-Acetyldihydrofuran-2(3H)-one

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Tabaszewska, Malgorzata; Najgebauer-Lejko, Dorota; Zbylut-Gorska, Maria published an article in 2022, the title of the article was The Effect of Crataegus Fruit Pre-Treatment and Preservation Methods on the Extractability of Aroma Compounds during Liqueur Production.HPLC of Formula: 123-25-1 And the article contains the following content:

The leaves, inflorescences, and fruits of hawthorn have long been known for their therapeutic properties. A wide range of hawthorn products, including liqueurs, are manufactured, due to the technol. potential of the raw material as well as the richness of its volatile compounds This study aimed to determine the effect of the liqueur production method and various methods of fruit preservation on the quant. and qual. composition of volatile compounds in the liqueurs produced. Hawthorn fruits saturated with sucrose and non-saturated with sucrose, fresh or preserved through one of three methods: freezing, air-drying, and freeze-drying, were used for liqueur preparation The samples were analyzed using a gas chromatograph-mass spectrometer. They were found to contain 54 volatile compounds classified into 12 groups of chems. All 54 identified volatile compounds were detected in the liqueur made from hawthorn fruits non-saturated with sucrose and preserved by freeze-drying. In this liqueur type, 12 of the identified volatile compounds occurred in the highest concentration when compared to the other treatments. Among all volatiles, the following compounds were present in the analyzed liqueurs in the highest concentrations: dodecanoic acid Et ester (11.782 g/100 g), lactones (6.954 g/100 g), five monoterpenes (3.18 g/100 g), two aromatic hydrocarbons (1.293 g/100 g), isobensofuran (0.67 g/100 g), alc.-2-methyl-2-propanol (0.059 g/100 g), and malonic ester (0.055 g/100 g). Among all analyzed liqueurs, the one made from the fruits non-saturated with sucrose and frozen was characterized by the smallest diversity of volatiles, which were present in the lowest concentrations in that liqueur. The experimental process involved the reaction of Diethyl succinate(cas: 123-25-1).HPLC of Formula: 123-25-1

The Article related to crataegus fruit preservation method extractability aroma compound liqueur production, pca, hawthorn, liqueur, volatile compounds, Placeholder for records without volume info and other aspects.HPLC of Formula: 123-25-1

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Ester – an overview | ScienceDirect Topics

Vilanova, Mar; Fernandez-Fernandez, Encarnacion; Yuste, Jesus published an article in 2020, the title of the article was Abiotic stress management and Verdejo wine composition: cluster thinning in different water regimes.HPLC of Formula: 123-25-1 And the article contains the following content:

BACKGROUND : The effects of cluster thinning (TH) on Verdejo wine composition were studied. Cluster thinning was applied in three water regimes (WR) (R0, rainfed control; R25, drip-irrigated at 25% ETo, and R50, drip-irrigated at 50% ETo) during the 2012-2014 seasons. RESULTS : Cluster thinning advanced grape maturity, although this was only significant in 2012. A significant effect of TH on R0 was observed in 2013, the wettest season, increasing the concentration of alcs., esters, acetates, and lactones. The same trend was shown in 2012 for all groups of volatile compounds in R0. In contrast, for all volatile families to increase was observed in 2014, the driest season, when TH was applied to R50. WR*TH interactions were found in most wine chem. parameters. CONCLUSION : The variation in wine volatile composition among the vintages that were observed shows that the capacity of TH to exert an influence depends not only on the water regime but also on annual conditions. The experimental process involved the reaction of Diethyl succinate(cas: 123-25-1).HPLC of Formula: 123-25-1

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On May 31, 2022, Sevindik, Onur; Kelebek, Hasim; Rombola, Adamo Domenico; Selli, Serkan published an article.COA of Formula: C8H14O4 The title of the article was Grape seed oil volatiles and odor activity values: a comparison with Turkish and Italian cultivars and extraction methods. And the article contained the following:

Arization of bioactive-rich wastes of food industry, such as grape seeds, is one of the most popular topic worldwide. The present study is designed to examine the volatiles of grape seed oils obtained by two Turkish (cvs. Okuzgozu and Emir) and two Italian (cvs. Sangiovese and Moscatello) cultivars by using two well-known oil extraction methods, cold percolation (CP) and soxhlet (SX). In order to evaluate their volatile composition, obtained oil extracts were subjected to purge and trap aroma extraction chamber combined with gas chromatog.-mass spectrometry GC-MS. Revealed results showed that the oil yield, volatile compositions and odor activity values (OAVs) of grape seed oils altered depending on both variety and extraction method of the oil. According to results, a total of 60 and 67 volatile compound were detected in CP and SX aromatic extracts High temperature applied during SX led to form new volatiles and increase in overall volatile composition due to oxidation reactions. Among all aroma groups, alcs. were the dominating aroma group followed by esters in each cultivar for both extraction methods. GSOs obtained by red grape varieties exhibited apparently higher ester concentration while white varieties were abundant in terpenes. Addnl., SX method caused to form some heat derived volatiles. Moreover, a total of 26 and 33 aroma compounds possessed OAVs greater than 1 and Et octanoate (sweet-apple odor), nonanal (fatty-citrus odor) and 1-octen-3-ol (mushroom, earthy odor) were found to be dominant volatiles with respect to their OAVs. The experimental process involved the reaction of Diethyl succinate(cas: 123-25-1).COA of Formula: C8H14O4

The Article related to grape seed oil volatile odor extraction method, aroma, emir, grape seed oil, moscatello, okuzgozu, sangiovese, Placeholder for records without volume info and other aspects.COA of Formula: C8H14O4

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Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics