Tag: M.W=150-200

Montevecchi, Giuseppe published the artcileComposition and applications of fractions discharged from a distillation plant for neutral ethanol production, Related Products of esters-buliding-blocks, the main research area is ethanol production fractions discharge distillation plant.

The composition of the different fractions constituting a distillation plant for neutral ethanol production was analyzed. Not only the fractions that are usually discarded from the plant (heads and fusel oils) were studied but also the ones that usually circulate within the plant, passing from one column to another, which are normally impossible to reach. It was thus possible to follow the path of each component inside the plant in order to observe where it accumulates and where is disposed of. The potential exploitation of these byproducts and of the chems. involved in the processing of neutral ethanol were taken into consideration and new approaches for their use, such as in fuel cell technol., were proposed.

Chemical Engineering Research and Design published new progress about Distillation (plant). 106-32-1 belongs to class esters-buliding-blocks, name is Ethyl octanoate, and the molecular formula is C10H20O2, Related Products of esters-buliding-blocks.

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

Syed, Chandini S. published the artcileExploration of antibacterial and antiproliferative secondary metabolites from marine Bacillus, Application of Methyl octanoate, the main research area is decanoic acid methyl ester secondary metabolite anticancer antibacterial Bacillus.

Antiproliferative secondary metabolites producing bacterial strain AVSC4 isolated from marine sediments was identified as Bacillus flexus based on 16S rRNA gene sequence anal. Under the strategy of liquid- liquid extraction, the crude extract was obtained showed significant antibacterial activity against different clin. pathogens. 0.5% methionine and 0.4% NaCl act as inducers for maximizing the growth and antibacterial activity of strain at pH 7 and 40°C. Heptadecanoic acid and Me hexadecanoic acid were identified as major and dominant secondary metabolites by GC-MS anal. and also showed significant antiproliferative activity against HT-29 (Human colorectal adenocarcinoma) and A-549 (Lung Cancer) with IC50 value 93.4μg/mL and 50.04μg/mL.

Journal of Microbiology, Biotechnology and Food Sciences published new progress about Antibacterial agents. 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Application of Methyl octanoate.

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

Abbas, Rasha Khalid published the artcileChemical constituents of the goat margarine and antibacterial activity against bacterial Pathogens in Sudan, Product Details of C11H22O2, the main research area is Escherichia Pseudomonas Salmonella goat margarine chem constituent antibacterial.

The margarine constituents were examined by Gas Chromatog.-Mass Spectrometry (GC-MS), it contained 41 compounds, fifteen of them were identified as the major compound, Hexadecanoic acid, Me ester (22.39%), Me stearate (14.92%), Me elaidate (13.80%), Me tetradecanoate (10.74%), Capric acid, Me ester (8.34%) Lauric acid (4.52%) Me octanoate (2.70%), linoleic acid Me ester (2.57%), Me 11-octadecenoate (1.90%), Me caproate (1.77%), Me pentadecanoate (1.72%), Me (8E,11E)-8,11-octadecadienoate (1.70%), Heptadecanoic acid, Me ester, (1.46%),trans-13-Octadecenoic acid, Me ester (Oleic acid) (1.20%), Me palmioleate (1.00%). The effect of goat margarine, against four different pathogenic bacteria Escherichia coli, Pseudomonas aeruginosa, Salmonella typhimurium, and Bacillus cereus, were carried out by using a disk diffusion technique, the highest antibacterial activity was detected against Salmonella typhimurium and the lowest one against Escherichia coli. The antibacterial activity of the antibiotics, (Ciprofloxacin, Tetracycline Ceftriaxone, Chloramphenicol and Gentamycin), were tested by the disk diffusion technique, and by measuring zones of inhibition, shows that there were differences, among all antibiotic the highest activity of antibiotic against bacteria was due to the action of ciprofloxacin. Ceftriaxone and Tetracycline antibiotic give lowest activity.

Journal of Pure and Applied Microbiology published new progress about Antibacterial agents. 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, Product Details of C11H22O2.

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

Abbas, Rasha Khalid published the artcileChemical constituents of the goat margarine and antibacterial activity against bacterial Pathogens in Sudan, Quality Control of 111-11-5, the main research area is Escherichia Pseudomonas Salmonella goat margarine chem constituent antibacterial.

The margarine constituents were examined by Gas Chromatog.-Mass Spectrometry (GC-MS), it contained 41 compounds, fifteen of them were identified as the major compound, Hexadecanoic acid, Me ester (22.39%), Me stearate (14.92%), Me elaidate (13.80%), Me tetradecanoate (10.74%), Capric acid, Me ester (8.34%) Lauric acid (4.52%) Me octanoate (2.70%), linoleic acid Me ester (2.57%), Me 11-octadecenoate (1.90%), Me caproate (1.77%), Me pentadecanoate (1.72%), Me (8E,11E)-8,11-octadecadienoate (1.70%), Heptadecanoic acid, Me ester, (1.46%),trans-13-Octadecenoic acid, Me ester (Oleic acid) (1.20%), Me palmioleate (1.00%). The effect of goat margarine, against four different pathogenic bacteria Escherichia coli, Pseudomonas aeruginosa, Salmonella typhimurium, and Bacillus cereus, were carried out by using a disk diffusion technique, the highest antibacterial activity was detected against Salmonella typhimurium and the lowest one against Escherichia coli. The antibacterial activity of the antibiotics, (Ciprofloxacin, Tetracycline Ceftriaxone, Chloramphenicol and Gentamycin), were tested by the disk diffusion technique, and by measuring zones of inhibition, shows that there were differences, among all antibiotic the highest activity of antibiotic against bacteria was due to the action of ciprofloxacin. Ceftriaxone and Tetracycline antibiotic give lowest activity.

Journal of Pure and Applied Microbiology published new progress about Antibacterial agents. 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Quality Control of 111-11-5.

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

Mwinga, James L. published the artcileIn vitro antimicrobial effects of Hypoxis hemerocallidea against six pathogens with dermatological relevance and its phytochemical characterization and cytotoxicity evaluation, SDS of cas: 110-42-9, the main research area is Hypoxis kidney cell cytotoxicity phytochem antimicrobial; Antibacterial; Antifungal; Antioxidant; Cytotoxicity; Gas Chromatography-Mass Spectrometry (GC-MS); Hypoxis hemerocallidea; Phytochemistry; Phytocosmetics.

Hypoxis hemerocallidea (commonly known as African Potato) is popular in African traditional medicine. It is used in the management of diverse ailments including burns, wounds and skin-related diseases. The current study investigated the antimicrobial effects of Hypoxis hemerocallidea against six microorganisms associated with skin diseases. In addition, the antioxidant activity, phytochem. profiles and cytotoxicity of the bulb extracts were evaluated. The antimicrobial activity of 50% methanol (MeOH) and petroleum ether (PE) extracts of Hypoxis hemerocallidea bulbs was tested against two bacterial and four fungal strains implicated in causing opportunistic skin-related diseases. Antioxidant potential of the extract was investigated via the 2,2-diphenyl-1-picryhydrazyl (DPPH) free radical scavenging assay and β-carotene linoleic acid model. Phytochem. profiling of the 50% MeOH extract of Hypoxis hemerocallidea was done using spectrophotometric assay and Gas Chromatog.-Mass Spectrometry (GC-MS). The extracts were also evaluated for cytotoxicity against African green monkey Vero kidney cell lines based on the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) colorimetric assay. Both 50% MeOH and PE extracts showed considerable inhibitory effects against all six microorganisms. The extracts were potent against Shigella flexneri and Trichophyton tonsurans with min. inhibitory concentration (MIC) values less than 1 mg/mL. However, there was relatively poor antifungal activity against the other fungal strains. In the DPPH assay, the MeOH extract of the bulb had an EC50 of 29.8μg/mL while 76.91% antioxidant activity was observed in the β-carotene-linoleic acid model. The extract contained total phenolics (41 mg GAE/g) and flavonoids (10 mg CE/g). The GC-MS anal. of Hypoxis hemerocallidea bulb revealed 29 and 160 bioactive compounds for 50% MeOH and PE extracts, resp. Based on the cytotoxicity, Hypoxis hemerocallidea had LC50 value of 210.9 ± 18.4 and 95.5 ± 13.3μg/mL for PE and MeOH extracts, resp. The bulb extracts of Hypoxis hemerocallidea exhibited good antimicrobial and antioxidant activities, which could be attributed to the presence of phenolics, flavonoids and the other bioactive compounds identified through GC-MS, making it a potentially effective cosmetic plant. These findings also account for the multi-pharmacol. use of Hypoxis hemerocallidea in traditional medicine, especially related to skin diseases. The plant extracts can be considered as safe based on their LC50 values (< 20μg/mL). However, other form of cytotoxicity studies need to be carried out on Hypoxis hemerocallidea, as well as in vivo tests, to confirm its safety and efficacy as a treatment for skin-related diseases. Journal of Ethnopharmacology published new progress about Antimicrobial agents. 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, SDS of cas: 110-42-9.

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

Chahdoura, Hassiba published the artcileBioactivity, hydrophilic, lipophilic and volatile compounds in pulps and skins of Opuntia macrorhiza and Opuntia microdasys fruits, Application of Methyl octanoate, the main research area is Opuntia hydrophilicity lipophilicity pulp skin fruit.

Opuntia genus includes several species able to grow in arid regions and known for producing delicate fruits, which are far from being thoroughly characterized. Herein, fruits from O. macrorhiza and O. microdasys were divided in skins and pulps (without including seeds) and studied for chem. composition, individual phytochems. and bioactivity. The major volatiles were camphor and Et acetate, while citric acid was the main organic acid. The fatty acids detected in highest percentages were linoleic acid (skins) and lauric acid (pulps); α-tocopherol was the major isoform of vitamin E. Quercetin-3-O-rutinoside and quercetin-O-(deoxyhexoside-rutinoside) were the main phenolics in fruit skins of O. macrorhiza and O. microdasys (resp.), similarly to piscidic acid in O. macrorhiza pulp (O. microdasys pulp showed no quantifiable compounds). Betanin and isobetanin were the major betalains. All samples were antioxidant (particularly O. macrorhiza), but antimicrobial activity was only detected in skins. Cytotoxicity was low in all cases. Overall, these fruits proved to be potential new ingredients for food or pharmaceutical related applications, adding value to these natural species able to grow in arid environments.

LWT–Food Science and Technology published new progress about Antimicrobial agents. 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Application of Methyl octanoate.

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

Ndukwe, Gloria ihuoma published the artcilePhytochemical analysis and antimicrobial activity of Aframomum chrysanthum seed extracts, Related Products of esters-buliding-blocks, the main research area is Aframomum seed extract antimicrobial microbial pathogen.

Three extracts of Aframomum chrysanthum seeds were investigated for antimicrobial activity using disk diffusion method. Varied concentration-dependent antimicrobial activities were exhibited by n-hexane and ethylacetate extracts against the investigated pathogenic microorganisms especially Staphylococcus aureus. Susceptibility testing conducted on all the extracts showed that n-hexane extract had moderate antimicrobial activity at 200 mg/mL against Staphylococcus aureus, Candida albicans and Trichophyton rubrum. All the isolates were observed to be resistant to the methanol extract n-Hexane extract displayed potent antimicrobial activity against Trichophyton rubrum when compared to the standard antifungal drug (fungisol) used in the investigation. Phytochem. anal. carried out on the n-hexane extract of Aframomum chrysanthum seed, revealed the presence of eighty-one (81) compounds made up of phytosterols, alkaloids, anthraquinone, phospholipids and fatty acids. The presence of these phytochems. is an indication that the plant could be used as antimicrobial agent.

International Journal of Chemical Studies published new progress about Antimicrobial agents. 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

Wang, Hua-Ying published the artcileOptimization of SPME-GC-MS and characterization of floral scents from Aquilegia japonica and A. amurensis flowers, Application of Methyl decanoate, the main research area is Aquilegia Asterias SPME GC MS VOC; Columbines; GC–MS; Northeast China; SPME; VOCs.

The floral scents of plants play a key role in plant reproduction through the communication between plants and pollinators. Aquilegia as a model species for studying evolution, however, there have been few studies on the floral scents and relationships between floral scents and pollination for Aquilegia taxa. In this study, three types of solid-phase micro-extraction (SPME) fiber coatings (DVB/PDMS, CAR/PDMS, DVB/CAR/PDMS) were evaluated for their performance in extracting volatile organic compounds (VOCs) from flowers of Aquilegia amurensis, which can contribute to the future studies of elucidating the role of floral scents in the pollination process. In total, 55 VOCs were identified, and among them, 50, 47 and 45 VOCs were extracted by the DVB/CAR/PDMS fiber, CAR/PDMS fiber and DVB/PDMS fibers, resp. Only 30 VOCs were detected in A. japonica taxa. Furthermore, the relative contents of 8 VOCs were significant different (VIP > 1 and p < 0.05) between the A. amurensis and A. japonica. The results can be applied in new studies of the relationships between the chem. composition of floral scents and the processes of attraction of pollinator. It may provide new ideas for rapid evolution and frequent interspecific hybridization of Aquilegia. BMC Chemistry published new progress about Aquilegia flabellata. 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, Application of Methyl decanoate.

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

Wang, Hua-Ying published the artcileOptimization of SPME-GC-MS and characterization of floral scents from Aquilegia japonica and A. amurensis flowers, Application In Synthesis of 111-11-5, the main research area is Aquilegia Asterias SPME GC MS VOC; Columbines; GC–MS; Northeast China; SPME; VOCs.

The floral scents of plants play a key role in plant reproduction through the communication between plants and pollinators. Aquilegia as a model species for studying evolution, however, there have been few studies on the floral scents and relationships between floral scents and pollination for Aquilegia taxa. In this study, three types of solid-phase micro-extraction (SPME) fiber coatings (DVB/PDMS, CAR/PDMS, DVB/CAR/PDMS) were evaluated for their performance in extracting volatile organic compounds (VOCs) from flowers of Aquilegia amurensis, which can contribute to the future studies of elucidating the role of floral scents in the pollination process. In total, 55 VOCs were identified, and among them, 50, 47 and 45 VOCs were extracted by the DVB/CAR/PDMS fiber, CAR/PDMS fiber and DVB/PDMS fibers, resp. Only 30 VOCs were detected in A. japonica taxa. Furthermore, the relative contents of 8 VOCs were significant different (VIP > 1 and p < 0.05) between the A. amurensis and A. japonica. The results can be applied in new studies of the relationships between the chem. composition of floral scents and the processes of attraction of pollinator. It may provide new ideas for rapid evolution and frequent interspecific hybridization of Aquilegia. BMC Chemistry published new progress about Aquilegia flabellata. 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

Qian, Yichun published the artcileCompletion of the cytosolic post-chorismate phenylalanine biosynthetic pathway in plants, Category: esters-buliding-blocks, the main research area is Petunia Arabidopsis cytosol chorismate mutase phenylalanine phenylpyruvate biosynthesis.

In addition to being a vital component of proteins, phenylalanine is also a precursor of numerous aromatic primary and secondary metabolites with broad physiol. functions. In plants phenylalanine is synthesized predominantly via the arogenate pathway in plastids. Here, we describe the structure, mol. players and subcellular localization of a microbial-like phenylpyruvate pathway for phenylalanine biosynthesis in plants. Using a reverse genetic approach and metabolic flux anal., we provide evidence that the cytosolic chorismate mutase is responsible for directing carbon flux towards cytosolic phenylalanine production via the phenylpyruvate pathway. We also show that an alternative transcription start site of a known plastidial enzyme produces a functional cytosolic prephenate dehydratase that catalyzes the conversion of prephenate to phenylpyruvate, the intermediate step between chorismate mutase and phenylpyruvate aminotransferase. Thus, our results complete elucidation of phenylalanine biosynthesis via phenylpyruvate in plants, showing that this pathway splits from the known plastidial arogenate pathway at chorismate, instead of prephenate as previously thought, and the complete pathway is localized in the cytosol.

Nature Communications published new progress about Arabidopsis thaliana. 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, Category: esters-buliding-blocks.

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