Category: 3301-94-8

Redox catalysis has been broadly utilized in electrochemical synthesis due to its kinetic advantages over direct electrolysis. The appropriate choice can avoid electrode passivation, which strongly inhibit the efficient activation of substrates. 3301-94-8, Name is 6-Butyltetrahydro-2H-pyran-2-one, molecular formula is C9H16O2. In a Article，once mentioned of 3301-94-8, Electric Literature of 3301-94-8

The purpose of this research was to quantify volatile compound changes during papaya fruit ripening and to identify putative genes that are responsible for aroma synthesis. Volatile compounds at four different stages of fruit ripening were isolated from ?Hong fei? variety by solvent assisted flavor evaporation, then analyzed by gas chromatography-mass spectrometry. In total, 38 different volatile compounds were identified, including terpenes, esters, lactones, ketones, alcohols, aldehydes, volatile acids, S- and N- containing compounds, and volatile phenols. The contents of terpenes, esters, lactones, ketones, volatile acids, and volatile phenols showed general upward trends and reached amximum at half yellow or full ripe stages, meanwhile most alcohols, aldehydes, S- and N-containing compounds showed downward trends with fruit ripening. The putative aroma biosynthesis genes were quantified by RT- qPCR, and the correlation analysis suggested that CpLIS1 and CpP450-2 could be responsible for linalool and linalool oxide biosynthesis, respectively; BITC biosynthesis could be regulated at post-transcriptional, post-translational or enzymatic levels, CpAAT1 and CpACX1 could catalyze the formation of some specific esters or lactones. This study offered important clues for further dissection of the molecular mechanisms underlining aroma synthesis in ?Hong fei? during fruit ripening.

If you are interested in 3301-94-8, you can contact me at any time and look forward to more communication.Electric Literature of 3301-94-8

Reference：
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics

Safety of 6-Butyltetrahydro-2H-pyran-2-one, As an important bridge between the micro and macro material world, chemistry is one of the main methods and means for humans to understand and transform the material world. 3301-94-8, Name is 6-Butyltetrahydro-2H-pyran-2-one, molecular formula is C9H16O2. In a Article，once mentioned of 3301-94-8

Precise identification of the compounds characteristic to stored white teas is urgently needed as these products have unique flavors and health benefits that improve with storage duration. Owing to the potential applications in food quality discrimination, specific regularities between the enantiomeric distributions of 23 volatile lactones and terpenoids and storage durations of white teas were expected and investigated by enantioselective gas chromatography-mass spectrometry (Es-GC-MS) combined with multivariate statistical analysis. High correlation coefficients (?0.853 to 0.695) and significant differences (P < 0.001) between the enantiomeric ratios (ERs) of (2S, 5S)-linalool oxide A, (2S, 5R)-linalool oxide B, (2R, 5S)-theaspirane B, S-linalool, and (1R, 2S)-methyl epijasmonate and the storage durations (0?7 years) were obtained, and the contents of S-linalool and S/R-dihydroactinidiolide significantly decreased and increased, respectively, with the increasing of storage duration. Therefore, the aforementioned lactone and terpenoid enantiomers are potential markers for the reliable differentiation of white teas stored for different time periods. Note that a catalyst decreases the activation energy for both the forward and the reverse reactions and hence accelerates both the forward and the reverse reactions.Safety of 6-Butyltetrahydro-2H-pyran-2-one, you can also check out more blogs about3301-94-8

Reference：
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics

Academic researchers, R&D teams, teachers, students, policy makers and the media all rely on us to share knowledge that is reliable, accurate and cutting-edge. Introducing a new discovery about 3301-94-8, Name is 6-Butyltetrahydro-2H-pyran-2-one, COA of Formula: C9H16O2.

The present invention refers to a process for the preparation of unsaturated ketones or aldehydes by pyrolysis of a lactone, in the presence of a reducing agent such as molecular hydrogen or a carboxylic acid, and in the presence of a catalyst, optionally supported, comprising at least one metal selected from the group consisting of Y, Ti, Cd, Mn, Zn, Sc and Zr.

Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data.COA of Formula: C9H16O2, If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 3301-94-8, in my other articles.

Reference：
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics

Chemistry is a science major with cience and engineering. The main research directions are chemical synthesis, new energy materials, preparation and modification of special coatings, and research on the structure and performance of functional materials3301-94-8, Name is 6-Butyltetrahydro-2H-pyran-2-one, molecular formula is C9H16O2. In a Article，once mentioned of 3301-94-8, Product Details of 3301-94-8

In this study a new way to produce tofu by means of soymilk fermentation by specific lactic acid bacteria, Lactobacillus casei and Lactobacillus acidophilus alone or in combination, and subsequent precipitation has been developed, in order to prevent undesired microbial and chemical spoilage, as well as improve the stability and the quality of the product. In particular, the combination L.casei and L.acidophilus generated tofu having shelf life exceeding 20 days and able to prevent the growth of the spoilage strains inoculated. This fermented tofu was characterized by the production of antimicrobial molecules, such as acetic acid, limonene, 2-nonen-1-ol, 1-nonanol, 2(5H)-furanone, benzyl alcohol, phenylethyl alcohol and heptanoic acid. Depending on the Lactobacillus species used, the fermentation process generated different metabolites profiles and sensorial properties. Another promising properties conferred by the lactic acid bacteria fermentation was the inhibition of unsaturated fatty acids (UFAs) peroxidation or reduction of the aldehydes originated to their corresponding alcohols.

Do you like my blog? If you like, you can also browse other articles about this kind. Product Details of 3301-94-8. Thanks for taking the time to read the blog about 3301-94-8

Reference：
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics

COA of Formula: C9H16O2, As an important bridge between the micro and macro material world, chemistry is one of the main methods and means for humans to understand and transform the material world. 3301-94-8, Name is 6-Butyltetrahydro-2H-pyran-2-one, molecular formula is C9H16O2. In a Article，once mentioned of 3301-94-8

High Pressure Carbon Dioxide (HPCD) treatment was applied to the pasteurization of coconut water in order to guarantee both its microbial stability and preserve its nutritional and sensory attributes. It was demonstrated that 120 bar, 40 C, 30 min were the optimal process conditions to induce a 5 Log(CFU/ml) reduction of mesophilic microorganisms, lactic acid bacteria, yeasts and molds and a 7 Log reduction of the total coliforms. The effect of HPCD on the quality traits of coconut water were investigated by means of physical-chemical and sensory analyses and compared to the Heat Pasteurized (HP, 90 C, 1 min) and Fresh Untreated (FU) product. No differences in the basic chemical composition, vitamins and amino acids, were detected between HPCD and FU products. However, differences in the volatile compounds present in the three products were clearly distinguishable; HPCD resulted in a reduction of most of the volatile fractions while HP induced the formation of compounds with a toasted and malty aroma. Nevertheless, few sensory differences were perceived between the FU and the HPCD coconut water, and both were clearly differentiated from the HP product.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.COA of Formula: C9H16O2. In my other articles, you can also check out more blogs about 3301-94-8

Reference：
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics

A catalyst don`t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. SDS of cas: 3301-94-8SDS of cas: 3301-94-8, , Name is 6-Butyltetrahydro-2H-pyran-2-one, molecular formula is C9H16O2. In a patent, introducing its new discovery.

PROBLEM TO BE SOLVED: To provide a novel alkanoic acid derivative that can impart characteristic fragrances and flavors to perfumery, food and drink and the like, and a perfume composition comprising the compound as an active ingredient. SOLUTION: This invention relates to 5-[(1-alkoxy)ethoxy]alkanoic acid alkyl represented by the formula (1); where R1 is methyl or ethyl group, R2 is 3-7C alkyl group, and R3 is ethyl, propyl or butyl group. This invention also relates to a perfume composition comprising 5-[(1-alkoxy)ethoxy]alkanoic acid alkyl represented by the formula (1) as an active ingredient. COPYRIGHT: (C)2015,JPO&INPIT

Do you like my blog? If you like, you can also browse other articles about this kind. SDS of cas: 3301-94-8. Thanks for taking the time to read the blog about 3301-94-8

Reference：
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics

Application of 3301-94-8. Chemical engineers ensure the efficiency and safety of chemical processes, adapt the chemical make-up of products to meet environmental or economic needs, and apply new technologies to improve existing processes. 3301-94-8, Name is 6-Butyltetrahydro-2H-pyran-2-one. In a document type is Article, introducing its new discovery.

Metal oxide catalysts were studied for their selectivity for the production of a terminally unsaturated methyl ester, methyl 5-hexenoate (M5H), from a 6 carbon, 6-membered ring lactone, delta-hexalactone (DHL). A 15 wt% Cs/SiO2 catalyst had a selectivity of 55% to M5H. This selectivity was the highest of the metal oxide catalysts studied, which were Cs/SiO2, MgO, SrO, CeO2, ZrO2, Ta2O5, MgAl2O4, and a Mg?Zr mixed oxide. The Cs/SiO2 catalyst was utilized for the ring-opening of gamma-valerolactone (GVL), a 5 carbon, 5-membered ring lactone. The catalyst was 88% selective to the terminally unsaturated methyl ester, methyl 4-pentenoate (M4P). Weight hourly space velocity studies determined that the unsaturated ester distributions remained constant and no C=C double bond isomerization occurred. Liquid phase transesterification reactions with DHL and methanol and nuclear magnetic resonance spectroscopy confirmed that DHL undergoes ring-opening transesterification to produce an omega-1 hydroxy methyl ester, methyl 5-hydroxyhexanoate (M5HH). Liquid phase transesterification reactions and thermochemistry calculations established that the equilibrium for GVL transesterification with methanol was favored towards the ring-closed lactone instead of the ring-opened hydroxy ester because of the decreased ring strain of GVL compared to DHL. The difference in terminally unsaturated methyl ester selectivity between GVL and DHL manifests from the difference in ring-strain energy. DHL passes through the M5HH intermediate as a result of greater ring strain, while the production of M4P from GVL most likely occurs through a direct, concerted mechanism. Graphical Abstract: [Figure not available: see fulltext.].

The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 3301-94-8 is helpful to your research., Application of 3301-94-8

Reference：
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics

Application of 3301-94-8, Chemistry can be defined as the study of matter and the changes it undergoes. You’ll sometimes hear it called the central science because it is the connection between physics and all the other sciences, starting with biology.3301-94-8, Name is 6-Butyltetrahydro-2H-pyran-2-one, molecular formula is C9H16O2. In a patent, introducing its new discovery.

Two thermodynamic parameters – entropy (deltaS) and enthalpy (deltaH) – ideally describe the thermodynamics of how the retention of an analyte in a stationary phase depends on the temperature. The paper examines the conversion of an analyte’s entropy and enthalpy into chromatographically more meaningful equivalents: its characteristic temperature and thermal constant. Thermodynamic and characteristic parameters of 29 enantiomer pairs of chiral analytes, analysed with four cyclodextrin stationary phases, were measured, tabulated, and investigated. The distribution of all newly-measured characteristic parameters was found to be similar to the known distribution of these parameters for some 12,000 pairs of analytes, analysed with several stationary phases. This similarity suggests that the peak widths of the investigated analytes in temperature-programmed analyses should be generally the same as the peak widths of other similarly retained analytes. It also suggests that the previously-known optimum general heating rate (about 10 oC/tM, i.e. 10C per hold-up time) is also the general optimum for temperature-programmed enantioselective GC analyses with cyclodextrins as stationary phases.The optimum general heating rate corresponds to the shortest analysis time for a predetermined peak capacity. It can substantially differ from specific optima corresponding to the best separation of particular peak pairs. Theoretical prediction of these specific optima requires more complex non-ideal thermodynamic models, and more accurate measurement of the parameters involved-these topics that are outside the scope of this report.

If you are interested in 3301-94-8, you can contact me at any time and look forward to more communication.Application of 3301-94-8

Reference：
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics

Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 3301-94-8, Name is 6-Butyltetrahydro-2H-pyran-2-one, category: Tetrahydropyrans.

Optimised extraction methods are required to better understand the impact of volatile compounds on the physical and organoleptic attributes of baked confectionary products (cakes, etc.). This is especially relevant with an increased focus on the reformulation of such products to aid in the reduction of diet-related chronic diseases. Headspace solid-phase microextraction (HS-SPME) has become one of the most widely used extraction techniques for volatile profiling of foods and beverages, mainly because it is very automatable, has a high sample throughput, is solvent-free and multiple fibre phases are available to target a wide range of volatile organic compounds. This study used response surface methodology to optimise HS-SPME parameters for the extraction of volatiles in baked confectionary products. After HS-SPME fibre selection, a central composite design was used to evaluate the effect of incubation time, extraction time and extraction temperature on 18 selected volatile compounds, representative of key volatiles in baked confectionary products, using a sponge cake crumb as the matrix. The most suitable fibre was the divinylbenzene/carboxen/polydimethylsiloxane. The results demonstrated that the final reduced models significantly (p < 0.0001) fitted the responses of 18 selected volatile compounds, with R2 values ranging from 0.8178 to 0.9871. The optimal conditions derived were an incubation time of 5 min, extraction time of 60 min and an extraction temperature of 60 C. These were subsequently evaluated in three baked confectionary products, highlighting the effectiveness of this approach. Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.category: Tetrahydropyrans. In my other articles, you can also check out more blogs about 3301-94-8

Reference：
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics

Related Products of 3301-94-8. Let’s face it, organic chemistry can seem difficult to learn. Especially from a beginner’s point of view. Like 3301-94-8, Name is 6-Butyltetrahydro-2H-pyran-2-one. In a document type is Article, introducing its new discovery.

The proteolytic, lipolytic changes and the volatile profile of Xinotyri goat’s cheese (an artisanal variety produced in the mountains of Naxos, a Greek island of the Aegean Sea) were studied during ripening. The cheese underwent very limited proteolysis; generally the WSN %TN and TCA-SN %TN contents remained stable, while the PTA-SN %TN content increased a little. Both beta- and alphas1-caseins were slightly degraded until the age of 22days and then remained stable. Free fatty acids (FFAs) content increased considerably during ripening and the most abundant FFAs were oleic, palmitic, myristic, stearic and capric acid. A total of 114 volatile compounds were detected. The most abundant group isolated at day 90 were alcohols followed by acids, ketones and esters, comprised 31.91%; 25.22%; 16.38%; and 15.54% of total compounds, respectively. Ethanol, acetic acid and hexanoic acid ethyl ester were at the highest level at all stages of ripening.

If you are interested in 3301-94-8, you can contact me at any time and look forward to more communication.Related Products of 3301-94-8

Reference：
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics