Tag: M.W=150-200

Aggarwal, Monika published the artcileInhibition of helicase activity by a small molecule impairs Werner syndrome helicase (WRN) function in the cellular response to DNA damage or replication stress, Formula: C8H9NO4, the main research area is Werner syndrome helicase inhibitor NSC19630 topotecan synergism antitumor.

Modulation of DNA repair proteins by small mols. has attracted great interest. An in vitro helicase activity screen was used to identify mols. that modulate DNA unwinding by Werner syndrome helicase (WRN), mutated in the premature aging disorder Werner syndrome. A small mol. from the National Cancer Institute Diversity Set designated NSC 19630 [1-(propoxymethyl)-maleimide] was identified that inhibited WRN helicase activity but did not affect other DNA helicases [Bloom syndrome (BLM), Fanconi anemia group J (FANCJ), RECQ1, RecQ, UvrD, or DnaB]. Exposure of human cells to NSC 19630 dramatically impaired growth and proliferation, induced apoptosis in a WRN-dependent manner, and resulted in elevated γ-H2AX and proliferating cell nuclear antigen (PCNA) foci. NSC 19630 exposure led to delayed S-phase progression, consistent with the accumulation of stalled replication forks, and to DNA damage in a WRN-dependent manner. Exposure to NSC 19630 sensitized cancer cells to the G-quadruplex-binding compound telomestatin or a poly(ADP ribose) polymerase (PARP) inhibitor. Sublethal dosage of NSC 19630 and the chemotherapy drug topotecan acted synergistically to inhibit cell proliferation and induce DNA damage. The use of this WRN helicase inhibitor mol. may provide insight into the importance of WRN-mediated pathway(s) important for DNA repair and the replicational stress response.

Proceedings of the National Academy of Sciences of the United States of America published new progress about Antitumor agents. 72835-26-8 belongs to class esters-buliding-blocks, name is (2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)methyl propionate, and the molecular formula is C8H9NO4, Formula: C8H9NO4.

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

Hesami, Sadra published the artcileSynthesis and characterization of chitosan nanoparticles loaded with greater celandine (Chelidonium majus L.) essential oil as an anticancer agent on MCF-7 cell line, Safety of Benzyl acetate, the main research area is chitosan nanoparticle Chelidonium majus essential oil nticancer agent; Apoptosis; Breast cancer; Chelidonium majus L.; Chitosan nanoparticles; Encapsulation.

Essential oils (EOs) of greater celandine (GC) roots and leaves were extracted, and gas chromatog.-mass spectrometry (GC-MS) was used for analyzing them. Then they were loaded into chitosan nanoparticles (CNPs) using emulsion-ionic gelation method. CNPs loaded with greater celandine root essential oil (GCREO) and leave essential oil (GCLEO) were synthesized (size 76.5-115.3 nm) using an emulsion-ionic gelation method. Fourier Transform IR (FT-IR), spectroscopy, scanning electron microscope (SEM), and dynamic light scattering (DLS) were used for characterization of the formed NPs. Good encapsulation efficiency was confirmed for GCREO (62.5%) and GCLEO (69.1%) in CNPs. According to the MTT results, the synthesized NPs showed a dose-dependent effect on MCF-7 cell line. The inhibitory concentration (IC50) values for GCREO, GCLEO, CSNRs-GCREO and CNPs-GCLEO samples were 126.4, 90.2, 77.6, and 41.5 μg/mL, resp. The highest rate of apoptosis was obtained in the CNPs-GCLEO group (63.73%). The results revealed that the cytotoxicity of CSNRs-GCREO and CNPs-GCLEO against MCF-7 cell line was significantly higher than that of their free form, implying that encapsulation of GCREO and GCLEO in CNPs is an efficient technique for improving their anti-cancer activity against MCF-7 cell line.

International Journal of Biological Macromolecules published new progress about Antitumor agents. 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, Safety of Benzyl acetate.

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

Hanousek Cica, Karla published the artcileCharacterisation of flavour compounds in Biska – a herbal spirit produced with mistletoe, Related Products of esters-buliding-blocks, the main research area is flavor spirit mistletoe aromatic compound.

Mistletoe (Viscum album) is mostly used in its herbal form owing to its content of diverse biol. active substances. In Croatia’s Adriatic region, it is used for production of Biska, a strong alc. beverage produced by maceration of mistletoe in spirit or brandy, with or without the addition of honey. In this work, Biska was characterized by anal. of aroma compounds and physicochem. parameters and is the first study of the aroma profile of a strong alc. beverage produced with mistletoe. The aroma of 14 samples of Biska – five com. and nine homemade – was analyzed using GC/MS with solid-phase microextraction A total of 166 aroma compounds were detected. Major components were Et esters (medium and long chain fatty acids), fatty alcs., iso-Pr myristate, aldehyde decanal and some terpenes. The distribution of aroma compounds was evaluated by principal component anal. Some significant differences in physicochem. properties were observed including ethanol concentration (28-44% volume/volume) and pH (4.4-6.5). Although the color of Biska was light brown with greenish reflections, there were differences in chromatic parameters. The com. samples were darker and were less transparent than homemade Biska, perhaps reflecting more extensive maceration/extraction or the addition of caramel.

Journal of the Institute of Brewing published new progress about Distilled spirits. 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Related Products of esters-buliding-blocks.

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

Hanousek Cica, Karla published the artcileCharacterisation of flavour compounds in Biska – a herbal spirit produced with mistletoe, Synthetic Route of 123-29-5, the main research area is flavor spirit mistletoe aromatic compound.

Mistletoe (Viscum album) is mostly used in its herbal form owing to its content of diverse biol. active substances. In Croatia’s Adriatic region, it is used for production of Biska, a strong alc. beverage produced by maceration of mistletoe in spirit or brandy, with or without the addition of honey. In this work, Biska was characterized by anal. of aroma compounds and physicochem. parameters and is the first study of the aroma profile of a strong alc. beverage produced with mistletoe. The aroma of 14 samples of Biska – five com. and nine homemade – was analyzed using GC/MS with solid-phase microextraction A total of 166 aroma compounds were detected. Major components were Et esters (medium and long chain fatty acids), fatty alcs., iso-Pr myristate, aldehyde decanal and some terpenes. The distribution of aroma compounds was evaluated by principal component anal. Some significant differences in physicochem. properties were observed including ethanol concentration (28-44% volume/volume) and pH (4.4-6.5). Although the color of Biska was light brown with greenish reflections, there were differences in chromatic parameters. The com. samples were darker and were less transparent than homemade Biska, perhaps reflecting more extensive maceration/extraction or the addition of caramel.

Journal of the Institute of Brewing published new progress about Distilled spirits. 123-29-5 belongs to class esters-buliding-blocks, name is Ethyl nonanoate, and the molecular formula is C11H22O2, Synthetic Route of 123-29-5.

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

Li, Zekun published the artcileCo-expression network analysis uncovers key candidate genes related to the regulation of volatile esters accumulation in Woodland strawberry, Application In Synthesis of 111-11-5, the main research area is network analysis candidate gene volatile ester strawberry; ERF gene; Fruit; Hawaii4; Ruegen; Transcription; WGCNA.

Main conclusion: FveERF (FvH4_5g04470.1), FveAP2 (FvH4_1g16370.1) and FveWRKY (FvH4_6g42870.1) might be involved in fruit maturation of strawberry. Overexpression of FveERF could activate the expression of AAT gene and ester accumulation. Volatile esters play an important role in the aroma of strawberry fruits, whose flavor is the result of a complex mixture of various esters. The accumulation of these volatiles is closely tied to changes in metabolism during fruit ripening. Acyltransferase (AAT) is recognized as having a significant effect in ester formation. However, there is little knowledge about the regulation network of AAT. Here, we collected the data of RNA-seq and headspace GC-MS at five time points during fruit maturation of Hawaii4 and Ruegen strawberry varieties. A total of 106 volatile compounds were identified in the fruit of woodland strawberries, including 58 esters, which occupied 41.09% (Hawaii4) or 33.40% (Ruegen) of total volatile concentration Transcriptome anal. revealed eight transcription factors highly associated with AAT genes. Through the changes in esters and the weight co-expression network anal. (WGCNA), a detailed gene network was established. This demonstrated that ERF gene (FvH4_5g04470.1), AP2 gene (FvH4_1g16370.1) and one WRKY gene (FvH4_6g42870.1) might be involved in expression of AAT genes, especially ERF genes. Overexpression of FveERF (FvH4_5g04470.1) does activate expression of AAT genes and ester accumulation in fruits of strawberry. Our findings provide valuable clues to gain better insight into the ester formation process of numerous fruits.

Planta published new progress about Fragaria ananassa. 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Application In Synthesis of 111-11-5.

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

Li, Zekun published the artcileCo-expression network analysis uncovers key candidate genes related to the regulation of volatile esters accumulation in Woodland strawberry, Recommanded Product: Ethyl octanoate, the main research area is network analysis candidate gene volatile ester strawberry; ERF gene; Fruit; Hawaii4; Ruegen; Transcription; WGCNA.

Main conclusion: FveERF (FvH4_5g04470.1), FveAP2 (FvH4_1g16370.1) and FveWRKY (FvH4_6g42870.1) might be involved in fruit maturation of strawberry. Overexpression of FveERF could activate the expression of AAT gene and ester accumulation. Volatile esters play an important role in the aroma of strawberry fruits, whose flavor is the result of a complex mixture of various esters. The accumulation of these volatiles is closely tied to changes in metabolism during fruit ripening. Acyltransferase (AAT) is recognized as having a significant effect in ester formation. However, there is little knowledge about the regulation network of AAT. Here, we collected the data of RNA-seq and headspace GC-MS at five time points during fruit maturation of Hawaii4 and Ruegen strawberry varieties. A total of 106 volatile compounds were identified in the fruit of woodland strawberries, including 58 esters, which occupied 41.09% (Hawaii4) or 33.40% (Ruegen) of total volatile concentration Transcriptome anal. revealed eight transcription factors highly associated with AAT genes. Through the changes in esters and the weight co-expression network anal. (WGCNA), a detailed gene network was established. This demonstrated that ERF gene (FvH4_5g04470.1), AP2 gene (FvH4_1g16370.1) and one WRKY gene (FvH4_6g42870.1) might be involved in expression of AAT genes, especially ERF genes. Overexpression of FveERF (FvH4_5g04470.1) does activate expression of AAT genes and ester accumulation in fruits of strawberry. Our findings provide valuable clues to gain better insight into the ester formation process of numerous fruits.

Planta published new progress about Fragaria ananassa. 106-32-1 belongs to class esters-buliding-blocks, name is Ethyl octanoate, and the molecular formula is C10H20O2, Recommanded Product: Ethyl octanoate.

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

Minebois, Romain published the artcileA time course metabolism comparison among Saccharomyces cerevisiae, S. uvarum and S. kudriavzevii species in wine fermentation, Computed Properties of 140-11-4, the main research area is Saccharomyces wine fermentation time course metabolism redox homeostasis; Central carbon metabolism; Nitrogen metabolism; Redox balance; S. kudriavzevii; S. uvarum; Wine fermentation.

In this study, we presented the first metabolome time course anal. performed among a set of S. uvarum, S. kudriavzevii and S. cerevisiae strains under winemaking conditions. Extracellular and intracellular metabolites, as well as physiol. parameters of yeast cells, were monitored along the process to find evidence of different metabolic strategies among species to perform alc. fermentation A thorough inspection of time trends revealed several differences in utilization or accumulation of fermentation byproducts. We confirmed the ability of S. uvarum and S. kudriavzevii strains to produce higher amounts of glycerol, succinate or some fusel alcs. and their corresponding esters. We also reported differences in the yields of less common fermentative byproducts involved in redox homeostasis, namely 2,3 butanediol and erythritol. 2,3 butanediol yield was higher in must ferment with cryophilic strains and erythritol, a pentose phosphate pathway derivative, was particularly overproduced by S. uvarum strains. Contrary to S. cerevisiae, a singular production-consumption rate of acetate was also observed in S. uvarum and S. kudriavzevii fermentations Since acetate is a precursor for acetyl-CoA production which is involved in the biosynthesis of membrane lipids, cryophilc strains might take advantage of extracellular acetate to remodel cell membrane as ethanol content increased during fermentation

Food Microbiology published new progress about Growth, microbial. 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, Computed Properties of 140-11-4.

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

Sozeri Atik, Didem published the artcileThe determination of volatile profile during the ripening period of traditional Tulum cheese from Turkey, produced in Anamur in the Central Taurus region and ripened in goatskin, Computed Properties of 106-32-1, the main research area is Tulum cheese ripening volatile profile goatskin Turkey.

Traditional Tulum cheese, produced by nomads in Anamur in the Central Taurus region from raw goats’ milk and ripened in goatskin, has characteristic taste, aroma, and specific flavours preferred over those of other Tulum cheeses. The volatile components and physicochem. properties of Tulum cheese were determined Traditional Tulum cheese was sampled on days 7, 15, 30, 60, 90, and 180 and specimens examined in terms of dry matter, pH, titratable acidity, fat, protein (percentage) and volatile compounds A total of 36 volatile compounds were identified using solid-phase microextraction during ripening of the Tulum cheese samples. They were composed of different chem. groups; carboxylic acids, alcs., esters, ketones, aldehydes, terpenes, and hydrocarbons. Results revealed that acetic acid, 2,3-butanediol, Et acetate, and α-pinene were found as the dominant volatiles in the samples.

International Dairy Journal published new progress about Acidity function. 106-32-1 belongs to class esters-buliding-blocks, name is Ethyl octanoate, and the molecular formula is C10H20O2, Computed Properties of 106-32-1.

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

Sozeri Atik, Didem published the artcileThe determination of volatile profile during the ripening period of traditional Tulum cheese from Turkey, produced in Anamur in the Central Taurus region and ripened in goatskin, HPLC of Formula: 110-42-9, the main research area is Tulum cheese ripening volatile profile goatskin Turkey.

Traditional Tulum cheese, produced by nomads in Anamur in the Central Taurus region from raw goats’ milk and ripened in goatskin, has characteristic taste, aroma, and specific flavours preferred over those of other Tulum cheeses. The volatile components and physicochem. properties of Tulum cheese were determined Traditional Tulum cheese was sampled on days 7, 15, 30, 60, 90, and 180 and specimens examined in terms of dry matter, pH, titratable acidity, fat, protein (percentage) and volatile compounds A total of 36 volatile compounds were identified using solid-phase microextraction during ripening of the Tulum cheese samples. They were composed of different chem. groups; carboxylic acids, alcs., esters, ketones, aldehydes, terpenes, and hydrocarbons. Results revealed that acetic acid, 2,3-butanediol, Et acetate, and α-pinene were found as the dominant volatiles in the samples.

International Dairy Journal published new progress about Acidity function. 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, HPLC of Formula: 110-42-9.

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

Sozeri Atik, Didem published the artcileThe determination of volatile profile during the ripening period of traditional Tulum cheese from Turkey, produced in Anamur in the Central Taurus region and ripened in goatskin, Application In Synthesis of 111-11-5, the main research area is Tulum cheese ripening volatile profile goatskin Turkey.

Traditional Tulum cheese, produced by nomads in Anamur in the Central Taurus region from raw goats’ milk and ripened in goatskin, has characteristic taste, aroma, and specific flavours preferred over those of other Tulum cheeses. The volatile components and physicochem. properties of Tulum cheese were determined Traditional Tulum cheese was sampled on days 7, 15, 30, 60, 90, and 180 and specimens examined in terms of dry matter, pH, titratable acidity, fat, protein (percentage) and volatile compounds A total of 36 volatile compounds were identified using solid-phase microextraction during ripening of the Tulum cheese samples. They were composed of different chem. groups; carboxylic acids, alcs., esters, ketones, aldehydes, terpenes, and hydrocarbons. Results revealed that acetic acid, 2,3-butanediol, Et acetate, and α-pinene were found as the dominant volatiles in the samples.

International Dairy Journal published new progress about Acidity function. 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Application In Synthesis of 111-11-5.

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