Category: 110-42-9

Patel, Dhananjay I. published the artcileEvaluation of new, sputtered carbon solid-phase microextraction fibers with multi-functional group test mixture, Category: esters-buliding-blocks, the main research area is sputtered carbon solid phase microextraction fiber multifunctional test mixture.

We report the first fabrication of sputtered carbon, solid-phase microextraction (SPME) fibers. These fibers have competitive extraction capabilities compared with the com. carbon wide range (CWR) SPME fiber. This report also includes a demonstration of a newly developed SPME test mix that includes 15 different compounds with a wide range of functional groups and chem. properties. The fiber fabrication process involves sputtering carbon onto fused silica fibers, and the effects of throw distance on the morphol. of the carbon coatings were studied. Four different carbon coating thicknesses were evaluated, with PDMS added as a stationary phase. These fibers were characterized with multiple anal. techniques, including SEM (SEM), XPS, water contact angle (WCA) goniometry, as well as headspace (HS) and direct immersion (DI)-SPME-GC-MS. The best (11.5 μm) sputtered carbon SPME fibers, with and without PDMS, were evaluated using the new evaluation mix and compared with the com. CWR fiber and a previously sputtered/developed silicon fiber. The new probe mix helped elucidate differences among the fibers, which would have been missed by current com. test mixes. The sputtered carbon SPME fibers showed similar functional group selectivity as com. CWR fibers. However, the sputtered carbon fibers showed higher responses per volume compared with the com. CWR fiber, indicating the porous morphol. of the sputtered carbon has the ability to overcome large phase thickness/volume discrepancies and increase the relative recovery for various compounds

Separations published new progress about Binding energy. 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, Category: esters-buliding-blocks.

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

Mohler, Rachel E. published the artcileTowards comprehensive analysis of oxygen containing organic compounds in groundwater at a crude oil spill site using GC×GC-TOFMS and Orbitrap ESI-MS, Computed Properties of 110-42-9, the main research area is organic compound groundwater crude oil spill comprehensive analysis; Bemidji; Biodegradation; GC×GC-TOFMS; High resolution mass spectrometry; Metabolites; Orbitrap ESI-MS.

In this study, both GC × GC-TOFMS and Orbitrap ESI-MS were used to characterize the oxygen containing organic compounds, OCOCs, present in groundwater at a site where a crude oil pipeline ruptured decades ago. This is the only side-by-side comparison of results from these two methods analyzed by the same laboratory GC × GC-TOFMS anal. shows OCOCs identified at the crude oil-release site are consistent with, and structurally similar to, those identified at previously studied fuel release sites. Mol. structures close to the release point differ from those found downgradient, becoming less complex and with different compound classes dominating. As with the GC × GC-TOFMS, the Orbitrap revealed that the composition of OCOCs present in groundwater close to the source area was distinctly different from that seen downgradient; however, the chem. structures increased significantly in size and complexity from wells near the source to the farthest downgradient well. Investigation into this finding suggests that the presence and structures of these non-GC-able OCOCs are consistent with organic matter resulting from biosynthesis or other processes found in natural water systems and are unlikely to be intermediates (metabolites) along petroleum biodegradation pathways.

Chemosphere published new progress about Biodegradation. 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, Computed Properties of 110-42-9.

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

Iglesias, A. published the artcileEssential oils from Humulus lupulus as novel control agents against Varroa destructor, HPLC of Formula: 110-42-9, the main research area is Humulus lupulus essential oil Varroa destructor control agent.

Humulus lupulus, commonly known as hops has widely been used in breweries globally, however, the acaricidal properties of H. lupulus derived products could also be a novel and interesting avenue of study against insect pests. We tested the antiparasitic activity of H. lupulus essential oils against the honeybee mite Varroa destructor, and its bioactivity against the honeybee Apis mellifera. The hop varieties used in this study were Cascade, Victoria, Spalt, and Mapuche. The essential oils were extracted from flowers by hydrodistillation and then characterized by CG-MS. We evaluated the toxicity of hop essential oils against mites, adult bees (A. mellifera) and larvae, and whether the oils were an attractant or repellent to mites. The major components of the oils for all varieties were β-myrcene, myrcene, beta-farnesene, alpha, and beta caryophyllene. Bioassays revealed that essential oils from all the varieties were toxic to the V. destructor mite. Victoria essential oil was the most toxic to V. destructor. The oils did not act as a repellent or attractant to the mites, and the bee (A. mellifera) mortality associated with complete exposure to the essential oil application was moderate to low. The results presented here provide promising results for the application of essential oils from hops grown in South America as an alternative method for controlling the honeybee mite Varroa destructor.

Industrial Crops and Products published new progress about Apis mellifera. 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

Sazawa, Kazuto published the artcileEvaluation of carbon mineralization and structural alterations of organic carbon in high-moor peat soils during incubation, Formula: C11H22O2, the main research area is organic carbon moor peat soil mineralization incubation.

The quantity and quality of soil organic matter (SOM) in the wetlands and peatlands are important for evaluating of the effects of environmental changes. This study’s aim was to evaluate the change in the chem. properties of SOM and dissolved organic matter (DOM) during a constant temperature incubation of high-moor peat soil under two types of vegetation. Incubation of high-moor peat soils collected from marsh vegetation and dwarf bamboo was conducted for 108 days at each temperature of 25°C and 35°C. The chem. properties of alk. extract and DOM in soil samples during incubation were analyzed by tetramethylammonium hydroxide thermochemolysis-gas chromatog.-mass spectrometry (TMAH-GC/MS) and fluorescence anal. The cumulative CO2 emission from peat under dwarf bamboo was higher than that of peat under marsh vegetation. During incubation at 35°C, plant and microbial residues in DOM extracted from dwarf bamboo soil were increased significantly at the early stages of culture. On the other hand, the components of DOM in the marsh vegetation soil sample did not significantly change between incubation at each temperature The fluorescence spectra showed that protein-like fluorescent DOM contained in dwarf bamboo soil is consumed by microorganisms, which promotes leaching of humic-like fluorescent DOM and carbon mineralization during the incubation period at a higher temperature Compared with marsh vegetation soil, the DOM in dwarf bamboo soil is susceptible to temperature rises and can be a larger source of CO2 emissions. This study shows that evaluation of DOM properties in soil could be useful to assess the effect of climate change on soil environment.

Journal of Soils and Sediments published new progress about Bamboo (dwarf). 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, Formula: C11H22O2.

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

Wu, Kam-chau published the artcileApplication of anaerobic bacterial ammonification pretreatment to microalgal food waste leachate cultivation and biofuel production, Formula: C11H22O2, the main research area is Dunaliella microalgae food waste leachate cultivation anaerobic digestion ammonification; Algal lipids production; Anaerobic digestion; Cyanobacterium apononium; Dunaliella tertiolecta; Food waste leachate.

The current practice of disposing of biodegradable food waste mixed with other solid wastes to landfills is not sustainable and is environmentally undesirable. Moreover, the leakage of nutrient-rich food waste leachate (FWL) impacts the environment by eutrophication of the water body. Two robust microalgal species, Dunaliella tertiolecta (D. tertiolecta) and Cyanobacterium aponinum (C. aponinum), have been selected previously for the treatment of FWL because they can tolerate diluted FWL. However, growth suppression by some inhibiting factors, such as total suspended solids and organic nitrogen, limited biomass productivity, and substantial dilution (5-10% volume/volume FWL) was required. To alleviate this suppression, anaerobic bacterial digestion was proposed to pretreat FWL and convert certain nutrients such as organic nitrogen to ammonium. The pretreatment was optimized in neutral to slightly alk. media, where a byproduct of biomethane up to 4.67 L methane/kg COD was produced. Regarding the nutrient removal efficiency, 98.99% of total nitrogen and 65% of total phosphorus can be removed by D. tertiolecta, whereas more than 80% of total nitrogen and 65% of total phosphorus can be removed by C. aponinum. The use of anaerobic bacterial ammonification pretreatment can significantly improve the performance of subsequent microalgal treatments and has been shown to be a sustainable green technol. for biofuel production and FWL recycling.

Marine Pollution Bulletin published new progress about Ammonification. 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, Formula: C11H22O2.

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

Steingass, Christof B. published the artcileInfluence of fruit logistics on fresh-cut pineapple (Ananas comosus [L.] Merr.) volatiles assessed by HS-SPME-GC-MS analysis, SDS of cas: 110-42-9, the main research area is Ananas fruit logistics HS SPME GC MS analysis.

Green-ripe pineapples are shipped overseas by sea freight, while those picked at full maturity need to be transported by airfreight over the same large distance. In this study, fresh-cut pineapple cubes were assessed two, five, and eight days after processing from green-ripe pineapples after mimicked sea freigh (SF) and fully ripe air-freighted (AF) pineapples. The sea-freighted samples displayed elevated titratable acidity (TA), thus resulting in smaller ratios of total soluble solids and TA compared to the AF pineapples. Differences in the carotenoid levels of the two fresh-cut categories were found to be insignificant. By contrast, hierarchical cluster anal. (HCA) and principal component anal. (PCA) calculated on the basis of the volatiles analyzed by headspace solid-phase microextraction-gas chromatog.-mass spectrometry (HS-SPME-GC-MS) permitted to distinguish all six individual sample types and to segregate them into two major clusters (SF and AF). The effect of storage on the volatiles was further evaluated by partial least squares (PLS) regression. Substantial chem. markers to differentiate the individual samples and to describe the effect of storage were deduced from the PCA and PLS regression, resp. In general, fresh-cut products obtained from fully ripe AF fruit displayed higher concentrations of volatiles, in particular, increased concentrations of diverse Me esters. With progressing storage duration, the concentrations of ethanol and diverse Et esters increased. Moreover, products from AF pineapples displayed lower microbial counts compared to those from SF fruit.

European Food Research and Technology published new progress about Ananas comosus. 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

Ahmad, Mushtaq published the artcilePhytochemical and pharmacological studies on medicinally important plant Opuntia dillenii collected from Pakistan, Application In Synthesis of 110-42-9, the main research area is Opuntia dillenii medicinal plant phytochem pharmacol study Pakistan.

Keeping in view the numerous useful pharmacol. activities of Opuntia plants, we explored in detail the secondary metabolites and metals in different parts, fatty acids composition of seed oil and a detailed anti-inflammatory study of the cladodes along with acute toxicity studies of Opuntia dillenii collected from Pakistan. Carbohydrates, saponins, tannins, flavonoids, terpenoids and phenols were present in both the cladodes and fruit part. Terpenes and sterols were found in the cladode part while alkaloids were only present in the fruit part. Highest quantity of sodium was found in the same quantity (394.00 ppm) cladodes and fruit while potassium was abundantly present in the fruit part (1543 0.00 ppm). Calcium was present in a very high quantity in the cladodes (11820.00 ppm) and fruit (16419.40 ppm). Linoleic acid, a potent cyclooxygenase-2 (COX-2) inhibitor, was with highest concentration (59.153%) among fatty acids. The crude extract displayed significant anti-inflammatory activity (50.88%) at 300 mg/kg body weight dose after 3h dose injection. Acute toxicity tests confirmed the safety of crude extract to a dose level of up to 1000 mg/kg body weight The present study provides a base to the natural product chemists to carry out further studies on the isolation of the secondary metabolites from Opuntia dillenii and explore the bio-efficacies of the individual compounds

International Journal of Biosciences published new progress about Acute toxicity. 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, Application In Synthesis of 110-42-9.

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

Sulejmani, Erhan published the artcileA comparative study of compositional, antioxidant capacity, ACE-inhibition activity, RP-HPLC peptide profile and volatile compounds of herbal artisanal cheeses, Related Products of esters-buliding-blocks, the main research area is Origanum artisanal cheese hexanal ACE inhibitor antioxidant RP HPLC.

The effect of aromatic herbs on the RP-HPLC peptide profile, angiotensin I-converting enzyme-inhibitory (ACE-i) activity, antioxidant capacity and volatile compounds in artisanal cheeses was investigated. Three representative artisanal cheeses (white brined, beaten and Kashkaval cheeses) were produced using aromatic herbs (Mentha longifolia, Origanum vulgare, Thymus longicaulis, Alium sativum, Petroselinum crispum, Capsicum annuum). Compared with control group, herbal cheeses (except white cheese with garlic and parsley) revealed a significant increase in antioxidant activity. The highest ACE-i activity was noticed in 60 days of ripening with a mean value of 98.72% in goat beaten cheese and 97.78% in Kashkaval cheese enriched with peppers. One hundred and one volatile compounds, mainly acids, esters and alcs., were identified in significantly higher amounts in cheeses made with herbs and contributed to the development of the overall aroma perception.

International Dairy Journal published new progress about Allium sativum. 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, Related Products of esters-buliding-blocks.

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

Bruna-Maynou, Fernanda J. published the artcileFlavored Sherry vinegar with citric notes: Characterization and effect of ultrasound in the maceration of orange peels, Safety of Methyl decanoate, the main research area is Citrus sherry vinegar isobutyl acetate carvone ultrasound food product; Orange peel; Sensory analysis, GC-O; Sherry vinegar; Ultrasounds; Volatile compounds.

Accelerated maceration experiments of orange peels in Sherry vinegar employing ultrasounds (US) have been carried out. Their effect on the vinegars volatile composition as well as on its olfactometric and sensory characteristics have been evaluated. The optimal conditions for the ultrasounds were determined as follows: sonication power 550 W/L; pulses 40 s On and 20 s Off; with orange peel 200 g/L established previously. Statistical studies showed that maceration under ultrasounds increased volatile compounds content, since the vinegars obtained showed a high content in alcs., aldehydes and terpenes. Regarding the olfactometric study, the control vinegar exhibited the lowest values for the “”floral””, “”greasy”” or “”citric”” categories and the highest value for the “”sweet”” category, whereas the US macerated vinegars presented the highest and lowest values for the “”floral”” and the “”acid”” categories, resp. Based on their sensory evaluation, the panel members preferred the vinegar where orange peels had macerated under ultrasounds for 90 min. According to the results, ultrasound is a technol. that could be employed to broaden the range of products manufactured by Sherry vinegar producers.

Food Research International published new progress about Citrus sinensis. 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, Safety of Methyl decanoate.

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

Iwasaki, Fumina published the artcileEffects of liming on the flavor of kokuto-shochu, a spirit made from non-centrifugal sugar, Name: Methyl decanoate, the main research area is kokuto shochu brown sugar flavor fermentation; 2,5-Dimethylpyradine; 4-Hydroxy-2,5-dimethyl-3(2H)-furanone; Kokuto-shochu; Liming; Non-centrifugal sugar.

Kokuto-shochu is a traditional Japanese spirit prepared from kokuto, a non-centrifugal brown cane sugar. When manufacturing kokuto, lime is added to the sugarcane juice to accelerate the crystallization of sucrose. Although the liming process differs depending on the manufacturer, the effects of liming on the quality of kokuto-shochu are unclear. Therefore, we investigated the flavor characteristics and volatiles present in kokuto-shochu prepared from kokuto with different liming degrees. Kokuto-shochu prepared from kokuto without liming had a pronounced kokuto-like flavor with a rich taste and contained higher contents of nerolidol, nonanal, acetoin, β-damascenone, and 4-hydroxy-2,5-dimethyl-3(2H)-furanone compared to that prepared from kokuto with liming. On the other hand, kokuto-shochu prepared from kokuto with excess liming had a comparative grassy flavor. It contained higher esters, 4-vinylguaiacol, and pyrazines compared to other shochu. The levels nerolidol, isoamyl acetate, nonanal, and acetoin were affected by the mash pH during fermentation, and formation of such volatiles via changing the mash pH. In contrast, pyrazines, 4-vinylguaiacol, and 4-hydroxy-2,5-dimethyl-3(2H)-furanone were not affected by mash pH, and their levels in the kokuto-shochu were consistent with those in kokuto raw materials. These results suggested that the liming process affects the levels of volatiles in kokuto-shochu by changing the mash pH and volatile levels in kokuto raw materials.

Journal of Bioscience and Bioengineering published new progress about Crystallization. 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, Name: Methyl decanoate.

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