Category: 584-02-1

Wu, Haijun published the artcileEthanol-Assisted Hydrothermal Liquefaction of Poplar Using Fe-Co/Al2O3 as Catalyst, Related Products of alcohols-buliding-blocks, the main research area is ethanol hydrothermal liquefaction iron cobalt alumina catalyst.

Although the conversion of lignocellulosic biomass into bio-oil with high yield/quality through hydrothermal liquefaction (HTL) is promising, it still faces many challenges. In this study, a Fex-Co(1-x)/Al2O3 catalyst was prepared with the coprecipitation method and low-content ethanol was used as the cosolvent for the HTL of poplar. The results showed that the Fex-Co(1-x)/Al2O3 catalyst significantly promoted the yield and energy recovery rate (ERR) of bio-oil compared with the control (10% ethanol content). At 260 °C for 30 min, 60Fe-40Co/Al2O3 had the best catalytic effect, achieving the highest bio-oil yield (67.35%) and ERR (93.07%). As a multifunctional bimetallic catalyst, Fex-Co(1-x)/Al2O3 could not only increase the degree of hydrogenation deoxidization of the product but also promote the diversity of phenolic compounds gained from lignin. The bio-oil obtained from HTL with Fex-Co(1-x)/Al2O3 as catalyst contained lower heterocyclic nitrogen, promoting the transfer of more bio-oil components to substances with lower b.p.

Energies (Basel, Switzerland) published new progress about Boiling point. 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, Related Products of alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Wang, Yujing published the artcileDouble membrane gasholder for biogas storage: Odor pollution risk and permeation characteristics, Category: alcohols-buliding-blocks, the main research area is double membrane gasholder biogas odor pollution risk permeation.

Biogas is an important and sustainable biofuel. Encouraged by renewable energy policies, the biogas industry has developed rapidly worldwide. Double membrane gasholders are widely used as biogas storage facilities. This work aimed to reveal the odorant permeation characteristics of double membrane gasholders, evaluate the related odor pollution risk, and identify the priority odorants for permeation prevention. Gas samples below the inner membrane, between the inner and outer membranes, and in the ambient environment were collected and analyzed. Odor potential and contribution were evaluated using the odor activity value (OAV). The relationship between the samples was explored by the Pearson correlation anal. The permeation characteristics of the major odor contributors were analyzed by comparing odorant concentrations in samples from both sides of the membrane. Terpenes were found to be the dominant compounds (>75%) inside the double membrane gasholder. The total OAVs of the gas below the inner membrane, between the inner and outer membranes and in the ambient environment were 47,500, 484, and less than 100, resp. Terpenes and sulfur compounds were the dominant odor contributors (>95% in total) for the gas inside the double membrane gasholder. The composition of the gas between the membranes was significantly correlated to that of the gas below the inner membrane (r2 = 0.98, p ≤ 0.001), but had a poor correlation with that of the gas in the ambient environment (r2 < 0.01). Odorant permeation occurred through both the inner and outer membranes. Hydrogen sulfide and limonene were selected as the main indicators for determining the permeability of the double membrane gasholder. Suggestions were made for the permeability test methods and material selection for double membrane gasholders. Journal of Cleaner Production published new progress about Air pollution. 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, Category: alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Li, Kexian published the artcileGaseous pollutants from a small-scale aerobic biological treatment facility: odor and health risk assessment, HPLC of Formula: 584-02-1, the main research area is ammonia VOC occupational health hazard air pollution.

Biol. treatment technol. is good for the recovery of resources and energy from municipal solid waste (MSW) and cutting down biodegradable components in landfill waste. Recently, the aerobic biol. treatment of MSW has increased in rural areas of China. These facilities are usually open setup and close to nearby residents, and complaints tend to be received regarding odorous gases. A semi-in-vessel setup facility was built in recent years, and its impact on the environment and personnel is not clear. Ammonia was the predominant compound released from the windrow and its concentration was one order of magnitude higher than those of other compounds Terpenes and reduced sulfur compounds (RSCs) persisted throughout the entire active fermentation process, with only slight decreases. The biofilter pool had a greater odor impact on the surrounding neighborhood than the waste unloading and sorting operation. The concentrations of most compounds were reduced by the biofilter pool. Ten major substances that caused odors at the facility were analyzed, where most comprised RSCs. The odor impact of the facility was low, but it was associated with a carcinogenic risk to the operators, thereby indicating the need to improve personal protection. Large amounts of ammonia and volatile organic compounds were released from the composting units, but they had a low odor impact on the environment because of the semi-in-vessel setup. The odor impact of the facility was low but it was associated with a carcinogenic risk to the operators. This technol. can be popularized in rural areas.

Environmental Sciences Europe published new progress about Air pollution. 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, HPLC of Formula: 584-02-1.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Liu, Yawei published the artcileQuantitative structure activity relationship (QSAR) modeling of the degradability rate constant of volatile organic compounds (VOC) by OH radicals in atmosphere, Recommanded Product: 3-Pentanol, the main research area is modeling atm volatile organic degradability hydroxyl radical reaction; volatile organic quant structure activity relationship atm degradation; Hydroxyl radical; Multiple linear regression; QSAR; Reaction rate constant; Volatile organic compounds.

reactions with OH- is an important way to remove most volatile organic compounds (VOC) from the atm.; thus, the reaction rate constant (kOH) is important to assess the VOC persistence and exposure risk, and is greatly significant to evaluate the VOC ecol. risk. Fukui indexes and bond order largely affect VOC degradation, but to date, quant. structure activity relationship (QSAR) models for VOC degradation have rarely considered these two factors. these factors were assessed along with other relevant quant. parameters. a total of 180 substances were divided into training (144 substances) and test (36 substances) sets used to build and validate QSAR models, resp. internal/external verification and y-randomization tests showed the established model had excellent stability and reliability. HOMO energy, possible attack by radicals, and chem. bond cleavage were the main factors affecting VOC removal. the scope of the application domain was determined and model robustness was further verified.

Science of the Total Environment published new progress about Air pollution. 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, Recommanded Product: 3-Pentanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Koltun, Stephen J. published the artcileSensory and chemical characteristics of tomato juice from fresh market cultivars with comparison to commercial tomato juice, Recommanded Product: 3-Pentanol, the main research area is tomato juice sensory metabolites.

Florida tomatoes are primarily produced for the fresh market and have not been widely used in processed tomato products. This study tested six Florida fresh market tomato cultivars (FLA 8083, FLA 8297, FLA 8344, FLA 8570, FLA 8924 and Garden Gem) to determine suitability for juice production Genetic and environmental-induced variation was studied, and analyses identified metabolites that influenced the perceptual and hedonic responses of tomato juice. Each cultivar was processed into juice by hot breaking at 86 C for 3.5 min and then pasteurization at 121 C for 42 s for a shelf stable product. Among the six pilot products, FLA 8344 cultivar had significantly higher soluble solids content and titratable acidity in all three experiments The pH of each of the tomato juices made from fresh market tomatoes was within or below the typical range for tomato juice. Garden Gem was consistently rated significantly (P ≤ .05) higher for aroma, overall liking, tomato flavor, texture and overall flavor. In all three experiments, tomato juice from a fresh market cultivar simultaneously had the greatest abundance of green-note volatiles (hexanal, 1-hexanol, (Z)-3-hexen-1-ol, etc) and the lowest abundance of cooked-note volatiles (di-Me sulfide, methional and furfural). Consumer acceptance increased as salt concentration increased and while season had minor effects on the chem. composition of the juice, consumers preferred the Spring processed tomato juice over Fall.

Flavour and Fragrance Journal published new progress about Fruits (juice). 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, Recommanded Product: 3-Pentanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Ganapathy, Birintha published the artcileBioremediation of palm oil mill effluent (POME) using indigenous Meyerozyma guilliermondii, Application In Synthesis of 584-02-1, the main research area is palm oil mill effluent bioremediation Meyerozyma wastewater treatment; Aerobic treatment; Bioremediation; Chemical oxygen demand; Indigenous; Lipase; Oil and grease; Palm oil mill effluent.

Despite being a key Malaysian economic contributor, the oil palm industry generates a large quantity of environmental pollutant known as palm oil mill effluent (POME). Therefore, the need to remediate POME has drawn a mounting interest among environmental scientists. This study has pioneered the application of Meyerozyma guilliermondii with accession number (MH 374161) that was isolated indigenously in accessing its potential to degrade POME. This strain was able to treat POME in shake flask experiments under aerobic condition by utilizing POME as a sole source of carbon. However, it has also been shown that the addition of suitable carbon and nitrogen sources has significantly improved the degradation potential of M. guilliermondii. The remediation of POME using this strain resulted in a substantial reduction of COD (COD) of 72%, total nitrogen of 49.2% removal, ammonical nitrogen of 45.1% removal, total organic carbon of 46.6% removal, phosphate of 60.6% removal, and 92.4% removal of oil and grease after 7 days of treatment period. The strain also exhibited an extracellular lipase activity which promotes better wastewater treatment. Addnl., Fourier transform IR spectroscopy (FTIR) and gas chromatog.-mass spectrometry (GC-MS) analyses have specifically shown that M. guilliermondii strain can degrade hydrocarbons, fatty acids, and phenolic compounds present in the POME. Ultimately, this study has demonstrated that M. guilliermondii which was isolated indigenously exhibits an excellent degrading ability. Therefore, this strain is suitable to be employed in the remediation of POME, contributing to a safe discharge of the effluent into the environment.

Environmental Science and Pollution Research published new progress about Bioremediation. 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, Application In Synthesis of 584-02-1.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

da Silva, Priscila Missio published the artcileStability of volatile compounds of honey during prolonged storage, HPLC of Formula: 584-02-1, the main research area is volatile compound stability honey prolonged storage; Aroma compounds; Degradation; Honey; Storage; Volatile compounds.

The aim of the study was to identify, via headspace solid phase microextraction and gas chromatog.-mass spectrometry, volatile compounds in eight no processing Apis mellifera L. honey samples produced in the state of Santa Catarina, Brazil, and monitor their stability over 540 days of storage at 20 ± 4°C, searching for possible degradation indicators compounds The result of the initial anal. showed the presence of 32 volatile compounds and 24 were selected for the evaluation of the behavior over the storage. The volatiles cis- and trans-linalool oxide and hotrienol showed increased over 540 days, except for one sample, which showed a decrease in the cis- and trans- linalool oxide contents. Other compounds (Et acetate, 1-hexanol. 2-Et, benzoic acid. Et ester, butanoic acid. 3-Me, butanoic acid. 2-Me, and salicylic acid. tert.-Bu ester) were detected in at least one sample from 360 days of storage. Considering the storage system applied, the compounds cis- and trans-linalool oxide and hotrienol, which were found in all samples and times evaluated, can be considered possible indicators compounds of degradation of honey.

Journal of Food Science and Technology (New Delhi, India) published new progress about Apis mellifera. 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, HPLC of Formula: 584-02-1.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Saglam, Ertugrul Gazi published the artcileSyntheses of and structural studies on some square planar dithiophosphonato Ni(II) complexes, octahedral pyridine derivatives thereof and x-ray crystallography, DFT and molecular docking studies of the latter, Formula: C5H12O, the main research area is crystal mol structure DFT dithiophosphonate nickel preparation DNA docking.

Five new dithiophosphonic acids ((p-MeOC6H4)PS(SH)(OR), HLn, (n = 1-5); R = 3-pentyl-, HL1; R = 1-phenyl-1-propyl-, HL2; R = 4-tert-Bu benzyl-, HL3; R = diphenylmethyl-, HL4; R = 4-tert-butylcyclohexyl-, HL5) were prepared by the reaction of Lawesson reagent with the corresponding alcs. As the acids were viscous liquids and difficult to purify they were converted to their ammonium salts ([NH4Ln]) for purification through crystallization Four coordinated Ni(II) complexes of the dithiophosphonates ([Ni(Ln)2]) were synthesized in MeOH medium and purified. The reaction between these square planar complexes and pyridine was carried out to produce six coordinated pyridine derivatives ([Ni(Ln)2(py)2]). The structures of the fifteen compounds so prepared were elucidated by spectroscopy, elemental anal. methods and magnetic susceptibility measurement. The mol. and crystal structure of [Ni(L2)2(py)2] was determined by x-ray crystallog. DFT calculations were carried out using the B3LYP functional with the LANL2DZ basis set to calculate the optimized geometrical structure and determine the energies, the orientations of the MOs (HOMOs and LUMOs) and the mol. electrostatic potential (MEP) surfaces of the octahedral complex [Ni(L2)2(py)2]. The results for [Ni(L2)2(py)2] revealed that it bonded to the active sites of A-DNA and B-DNA by weak noncovalent interactions, which was also supported by mol. docking studies.

Journal of Molecular Structure published new progress about Binding energy. 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, Formula: C5H12O.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Losada-Perez, Patricia published the artcileAsymmetric liquid-liquid criticality in the ideal volumetric mixing approximation, Product Details of C5H12O, the main research area is nitromethane pentanol liquid criticality volumetric mixing.

We address the question on the validity of the ideal volumetric mixing approximation, a customarily used approach to analyze liquid-liquid phase transitions. Thus, liquid-liquid coexistence curves for the binary mixture composed by nitromethane and 3-pentanol were obtained from direct single-phase mass d. measurements as a function of temperature A reasonable agreement with previously reported data obtained from refractive index measurements has been found, indicating that assuming ideal mixing is rather reasonable. Furthermore, the implications of the ideal volumetric mixing approximation on asym. liquid-liquid criticality are explored in the framework of complete scaling formulation, with emphasis on the coexistence curves in the mole fraction-temperature and volume fraction-temperature planes as well as on the behavior of the isobaric heat capacity per particle and per unit volume and the associated Yang-Yang-type anomalies.

Journal of Chemical Thermodynamics published new progress about Binary mixtures. 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, Product Details of C5H12O.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Chen, Xiao published the artcileCharacterization of free and glycosidically bound volatile compounds from tamarillo (Solanum betaceum Cav.) with considerations on hydrolysis strategies and incubation time, Recommanded Product: 3-Pentanol, the main research area is Solanum enzyme hydrolysis glycoside volatile compound prenol.

Two different hydrolysis strategies, namely acid hydrolysis (pH 0 and 3) and enzyme hydrolysis (Rapidase AR2000, β-glucosidase, 5.6 nkat/mg), and the effect of hydrolysis time on the liberation of glycosidically bound volatiles from tamarillo (Solanum beaceum Cav.), were evaluated. Free and bound volatile profiles in tamarillo were also compared. Enzymic hydrolysis was favored for the liberation of aldehydes, esters, and terpenes. Harsh acidic hydrolysis (pH 0) was particularly effective at releasing C13-norisoprenoids including 3-hydroxy-β-damascone and 1,1,6-trimethyl-1,2-dihydronaphthalene (TDN), but those compounds cannot contribute to the pleasant odor. Moreover, the longer the duration of enzymic hydrolysis, the higher was the concentration of alcs., terpenes, benzenoids, ketones, and volatile phenols. On the other hand, 33 free and 49 bound volatiles were identified in tamarillo with a complementary profile: the major free volatiles were alcs. ((Z)-3-hexenol, 1-hexanol) and esters (Me caproate, Me butanoate and Et butanoate), while bound volatile compounds showed higher concentrations of benzenoids (benzyl alc. and phenylethyl alc.) and terpenes, including prenol, linalool and α-terpineol. Many glycosidically bound volatiles are available as aroma reservoirs in tamarillo, and to liberate these compounds during tamarillo-based product development, attention should be given to hydrolysis strategies and incubation time.

LWT–Food Science and Technology published new progress about Acid hydrolysis. 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, Recommanded Product: 3-Pentanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts