Category: 695-06-7

Key Odorants of Raw and Cooked Green Kohlrabi (Brassica oleracea var. gongylodes L.) was written by Marcinkowska, Monika;Frank, Stephanie;Steinhaus, Martin;Jelen, Henryk H.. And the article was included in Journal of Agricultural and Food Chemistry in 2021.Product Details of 695-06-7 This article mentions the following:

Volatile compounds of raw and cooked green kohlrabi were investigated using a sensomics approach. A total of 55 odor-active compounds were detected and identified in raw and cooked green kohlrabi using GC-O. Twenty-eight odor-active compounds with high flavor dilution (FD) factors ranging from 64 to 1024 were quantitated, and odor activity values (OAVs) were determined Eight compounds showed high OAVs in raw and cooked kohlrabi: five sulfur compounds (di-Me trisulfide, Me 2-methyl-3-furyl disulfide, and three isothiocyanates (1-isothiocyanato-3-(methylsulfanyl)propane, benzyl isothiocyanate, and 1-isothiocyanato-4-(methylsulfanyl)butane)), two lipid oxidation products (1-octen-3-one and trans-4,5-epoxy-(2E)-dec-2-enal), and 2-isopropyl-3-methoxypyrazine. Among these, the sulfur compounds contributed most to the overall smell of the raw and cooked vegetables. The quantitation anal. indicates that the eight odorants are the backbone compounds for raw and cooked kohlrabi. The OAVs for the backbone compounds and also for minor odorants are clearly higher in raw kohlrabi than in the cooked one. Differences can be explained by the influence of the cooking process. In the experiment, the researchers used many compounds, for example, 5-Ethyldihydrofuran-2(3H)-one (cas: 695-06-7Product Details of 695-06-7).

5-Ethyldihydrofuran-2(3H)-one (cas: 695-06-7) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits, including apples, durians, pears, bananas, pineapples, and strawberries. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Product Details of 695-06-7

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

A systematic study of key odourants, non-volatile compounds, and antioxidant capacity of cascara (dried Coffea arabica pulp) was written by Pua, Aileen;Choo, Wei Xian Desmond;Goh, Rui Min Vivian;Liu, Shao Quan;Cornuz, Maurin;Ee, Kim-Huey;Sun, Jingcan;Lassabliere, Benjamin;Yu, Bin. And the article was included in LWT–Food Science and Technology in 2021.HPLC of Formula: 695-06-7 This article mentions the following:

Derived from the residues of coffee processing (pulp), cascara has been consumed traditionally as a tea-like infusion, in part due to its pleasant flavor and nutritional properties. In this study, the volatile and non-volatile compositions of five cascaras (Coffea arabica) were systematically characterised to understand their organoleptic and antioxidant properties. Using solvent assisted flavor evaporation, 151 volatile compounds were identified by gas chromatog.-mass spectrometry. Furthermore, 18 key odourants were elucidated by aroma extract dilution anal., of which some were common odourants of dried fruits and black tea. Non-volatile compounds, including 7 sugars, 6 organic acids, 3 methylxanthines, and 35 polyphenols were detected and quantified via liquid chromatog. techniques. Finally, the volatile and non-volatile compositions of the five cascaras were differentiated through principal component anal. Therefore, this study expands the current knowledge about cascara and may facilitate further research on its application. In the experiment, the researchers used many compounds, for example, 5-Ethyldihydrofuran-2(3H)-one (cas: 695-06-7HPLC of Formula: 695-06-7).

5-Ethyldihydrofuran-2(3H)-one (cas: 695-06-7) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Because of their lack of hydrogen-bond-donating ability, esters do not self-associate. Consequently, esters are more volatile than carboxylic acids of similar molecular weight.HPLC of Formula: 695-06-7

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

Chemist Ex Machina: Advanced Synthesis Planning by Computers was written by Molga, Karol;Szymkuc, Sara;Grzybowski, Bartosz A.. And the article was included in Accounts of Chemical Research in 2021.Recommanded Product: 5-Ethyldihydrofuran-2(3H)-one This article mentions the following:

Teaching computers to plan multistep syntheses of arbitrary target mols.-including natural products-has been one of the oldest challenges in chem., dating back to the 1960s. This Account recapitulates two decades of our group閳ョ灚 work on the software platform called Chematica, which very recently achieved this long-sought objective and has been shown capable of planning synthetic routes to complex natural products, several of which were validated in the laboratory For the machine to plan syntheses at an expert level, it must know the rules describing chem. reactions and use these rules to expand and search the networks of synthetic options. The rules must be of high quality: They must delineate accurately the scope of admissible substituents, capture all relevant stereochem. information, detect potential reactivity conflicts, and protection requirements. They should yield only those synthons that are chem. stable and energetically allowed (e.g., not too strained) and should be able to extrapolate beyond examples already published in the literature. In parallel, the network-search algorithms must be able to assign meaningful scores to the sets of synthons they encounter, make judicious choices which of the network閳ョ灚 branches to expand, and when to withdraw from unpromising ones. They must be able to strategize over multiple steps to resolve intermittent reactivity conflicts, exchange functional groups, or overcome local maxima of mol. complexity. Meeting all these requirements makes the problem of computer-driven retrosynthesis very multifaceted, combining expert and AI approaches further supplemented by quantum-mech. and mol.-mechanics calculations Development of Chematica has been a very long and gradual process because all these components are needed. Any shortcuts-for example, reliance on only expert or only data-based approaches-yield chem. na鑼倂e and often erroneous syntheses, especially for complex targets. On the bright side, once all the requisite algorithms are implemented-as they now are-they not only streamline conventional synthetic planning but also enable completely new modalities that would challenge any human chemist, for example, synthesis with multiple constraints imposed simultaneously or library-wide syntheses in which the machine constructs “global plans” leading to multiple targets and benefiting from the use of common intermediates. These types of analyses will have profound impact on the practice of chem. industry, designing more economical, more green, and less hazardous pathways. In the experiment, the researchers used many compounds, for example, 5-Ethyldihydrofuran-2(3H)-one (cas: 695-06-7Recommanded Product: 5-Ethyldihydrofuran-2(3H)-one).

5-Ethyldihydrofuran-2(3H)-one (cas: 695-06-7) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.Recommanded Product: 5-Ethyldihydrofuran-2(3H)-one

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

Effects of cooking conditions on the physicochemical and sensory characteristics of dry- and wet-aged beef was written by Lee, Dongheon;Lee, Hyun Jung;Yoon, Ji Won;Ryu, Minkyung;Jo, Cheorun. And the article was included in Animal Bioscience in 2021.Quality Control of 5-Ethyldihydrofuran-2(3H)-one This article mentions the following:

This study aimed to elucidate the effects of cooking conditions on the physicochem. and sensory characteristics of dry- and wet-aged beef strip loins. Dry- and wet-aged beef aged for 28 days were cooked using different cooking methods (grilling or oven roasting) x cooking temperatures (150鎺矯 or 230鎺矯), and their pH, 2-thiobarbituric acid reactive substances (TBARS), volatile compounds, and color were measured. Cooking conditions did not affect pH; however, grilling resulted in lower TBARS but higher cooking doneness at the dry-aged beef surface compared to oven roasting (p< 0.05). In descriptive sensory anal., the roasted flavor of dry-aged beef was significantly stronger when grill-cooked compared to oven roasting. Dry-aged beef grill-cooked at 150鎺矯 presented a higher intensity of cheesy flavor, and that grilled at 230鎺矯 showed a greater intensity of roasted flavor compared to wet-aged beef at the same condition, resp. Grilling may be effective for enhancing the unique flavor in dry-aged beef. In the experiment, the researchers used many compounds, for example, 5-Ethyldihydrofuran-2(3H)-one (cas: 695-06-7Quality Control of 5-Ethyldihydrofuran-2(3H)-one).

5-Ethyldihydrofuran-2(3H)-one (cas: 695-06-7) belongs to esters. Esters are also usually derived from carboxylic acids. It may also be obtained by reaction of acid anhydride or acid halides with alcohols or by the reaction of salts of carboxylic acids with alkyl halides. Esters contain a carbonyl center, which gives rise to 120鎺?C閳ユ弲閳ユ彊 and O閳ユ弲閳ユ彊 angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C閳ユ彊閳ユ弲 bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Quality Control of 5-Ethyldihydrofuran-2(3H)-one

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

Cigar leaf differences from different producing areas based on aroma component analysis was written by Yu, Hang;Liu, Yanting;Shang, Mengqi;Huang, Guangli;Fang, Yi;Lin, Lin;Qu, Yaling;Zuo, Qiaomei. And the article was included in Yancao Keji in 2021.Electric Literature of C6H10O2 This article mentions the following:

In order to investigate the leaf aroma chem. differences for cigar samples from different producing areas, 79 aroma components in 47 cigar samples from different countries were determined In addition, the differences in contents and odor activity values of aroma components among Cuban cigars, foreign non-Cuban cigars and Chinese cigars were compared by significance tests. The results showed that there were significant differences in the contents of 43 aroma components among the cigars from different producing areas, and the differences in the contents of 浼?curcumene and cedrol were the most significant. The contents of degradation products from chlorophyll and cembranoids in Cuban cigars were higher, those of phenylalanines and labdanums in foreign non-Cuban cigars and that of chlorophyll in Chinese cigars were lower. The 79 aroma components had higher odor activity values in fruit and flower flavors. Cuban cigars had higher odor activity values in herbal spices, fruit, flower and other flavors. Foreign non-Cuban cigars had lower odor activity values in plant, fruit, nut, flower and other flavors. The discriminant functions established by taking the contents of aroma components as variables can distinguish the producing areas of com. cigars. In the experiment, the researchers used many compounds, for example, 5-Ethyldihydrofuran-2(3H)-one (cas: 695-06-7Electric Literature of C6H10O2).

5-Ethyldihydrofuran-2(3H)-one (cas: 695-06-7) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Esters contain a carbonyl center, which gives rise to 120鎺?C閳ユ弲閳ユ彊 and O閳ユ弲閳ユ彊 angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C閳ユ彊閳ユ弲 bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Electric Literature of C6H10O2

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

Effect of gamma-irradiation and extrusion on the physicochemical, thermal and aroma-active compounds of rice flour was written by Ayseli, Mehmet Turan;Coskun, Ismail. And the article was included in Radiation Physics and Chemistry in 2022.SDS of cas: 695-06-7 This article mentions the following:

Food irradiation seems to be an effective and safe method for preventing microbial and insect contamination in cereals. Interestingly, the determination of the aroma-active compounds in irradiated and extruded rice flour does not yet exist. This study aimed to investigate aroma and aroma-active compounds of non-irradiated rice flour (NIRF) and irradiated and processed rice flour (IPRF) by the SPME method combined with GC-MS-O. In the present study, twenty-three aroma-active compounds in the NIRF sample while fifteen in the IPRF sample were identified with 1.6-4.9 odor intensity scores. Hexanal [4.9], nonanal [4.4], heptanal [3.9], decanal [3.3], 3-Octen-2-one [3.1] and were detected as key odorants in all samples. Whereas, 2-penthylfuran [3.8], octanal [3.8], nonanal [4.5], and benzaldehyde [2.1] were clearly higher in the IPRF sample, considering NIRF. The amount of hexanal which can be considered as irradiation odor (IO), has been increased due to the food irradiation process. In the experiment, the researchers used many compounds, for example, 5-Ethyldihydrofuran-2(3H)-one (cas: 695-06-7SDS of cas: 695-06-7).

5-Ethyldihydrofuran-2(3H)-one (cas: 695-06-7) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Esters contain a carbonyl center, which gives rise to 120鎺?C閳ユ弲閳ユ彊 and O閳ユ弲閳ユ彊 angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C閳ユ彊閳ユ弲 bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. SDS of cas: 695-06-7

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

In vivo evaluation of biocompatibility and immune modulation potential of poly(caprolactone)-poly(ethylene glycol)-poly(caprolactone)-gelatin hydrogels enriched with nano-hydroxyapatite in the model of mouse was written by Alipour, Mahdieh;Ashrafihelan, Javad;Salehi, Roya;Aghazadeh, Zahra;Rezabakhsh, Aysa;Hassanzadeh, Armin;Firouzamandi, Masomeh;Heidarzadeh, Morteza;Rahbarghazi, Reza;Aghazadeh, Marziyeh;Saghati, Sepideh. And the article was included in Journal of Biomaterials Applications in 2021.Application In Synthesis of 5-Ethyldihydrofuran-2(3H)-one This article mentions the following:

Biocompatible, biodegradable, and injectable hydrogels are a novel and promising approach for bone regeneration. In this study, poly(caprolactone)-poly(ethylene glycol)-poly(caprolactone) (PCL-PEG-PCL), PCL-PEG-PCL-gelatin (Gel), PCL-PEG-PCL-Gel/nano-hydroxyapatite (nHA) injectable hydrogels were synthesized and evaluated in a mouse model of s.c. transplantation after 14 days. PCL-PEG-PCL-Gel and PCL-PEG-PCL-Gel/nHA hydrogels were fabricated with in situ precipitation method. Structure, intermol. interaction, and the reaction between the PCL-PEG-PCL, Gel, and nHA were evaluated using a scanning electron microscope (SEM), Fourier-transform IR spectroscopy (FT-IR), proton NMR (H-NMR), and carbon NMR (C-NMR). Fourteen days after s.c. injection, the existence of an immune system reaction was investigated using Hematoxylin and Eosin (H&E) staining. Using immunofluorescence imaging, the number of CD68⁺ cells was determined in the periphery of the hydrogel. The CD8/CD4 lymphocyte ratio was also calculated in blood samples. We monitored the expression of CCL-2, BCL-2, IL-10, and CD31 using real-time PCR assay. The chem. evaluation revealed the successful integration of Gel and nHA to the PCL-PEG-PCL backbone. Histol. examination showed the lack of inflammation at the site of injection. No toxicol. effects were determined in hepatic and renal tissues. The addition of nHA to the PCL-PEG-PCL-Gel decreased biodegradation time. None of the hydrogels caused statistically significant differences in the number of CD68 cells (p > 0.05). The CD8/CD4 lymphocyte ratio remained unchanged in all groups (p > 0.05). Compared to the PCL-PEG-PCL group, the addition of nHA and Gel increased the expression of CCL-2, BCL-2, IL-10, and CD31 (p < 0.05). In conclusion, the current study showed that PCL-PEG-PCL-Gel/nHA hydrogels could be used in in vivo conditions without prominent toxic effects and inflammatory responses. In the experiment, the researchers used many compounds, for example, 5-Ethyldihydrofuran-2(3H)-one (cas: 695-06-7Application In Synthesis of 5-Ethyldihydrofuran-2(3H)-one).

5-Ethyldihydrofuran-2(3H)-one (cas: 695-06-7) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.Application In Synthesis of 5-Ethyldihydrofuran-2(3H)-one

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

Evolution Analysis of Free Fatty Acids and Aroma-Active Compounds during Tallow Oxidation was written by Song, Shiqing;Zheng, Feiting;Tian, Xiaoyan;Feng, Tao;Yao, Lingyun;Sun, Min;Shi, Lei. And the article was included in Molecules in 2022.Application In Synthesis of 5-Ethyldihydrofuran-2(3H)-one This article mentions the following:

To explore the role of fatty acids as flavor precursors in the flavor of oxidized tallow, the volatile flavor compounds and free fatty acid (FFAs) in the four oxidization stages of tallow were analyzed via gas chromatog. (GC)-mass spectrometry (MS), the aroma characteristics of them were analyzed by GC-olfactory (GC-O) method combined with sensory anal. and partial least-squares regression (PLSR) anal. 12 common FFAs and 35 key aroma-active compounds were obtained. Combined with the results of odor activity value (OAV) and FD factor, benzaldehyde was found to be an important component in unoxidized tallow. (E,E)-2,4-Heptadienal, (E,E)-2,4-decadienal, (E)-2-nonenal, octanal, hexanoic acid, hexanal and (E)-2-heptenal were the key compounds involved in the tallow flavor oxidation The changes in FFAs and volatile flavor compounds during oxidation and the metabolic evolution of key aroma-active compounds are systematically summarized in this study. The paper also provides considerable guidance in oxidation control and meat flavor product development. In the experiment, the researchers used many compounds, for example, 5-Ethyldihydrofuran-2(3H)-one (cas: 695-06-7Application In Synthesis of 5-Ethyldihydrofuran-2(3H)-one).

5-Ethyldihydrofuran-2(3H)-one (cas: 695-06-7) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is 绾?valerolactone.Application In Synthesis of 5-Ethyldihydrofuran-2(3H)-one

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

Are In Silico Approaches Applicable As a First Step for the Prediction of e-Liquid Toxicity in e-Cigarettes? was written by Zarini, Daniele;Sangion, Alessandro;Ferri, Emanuele;Caruso, Enrico;Zucchi, Sara;Orro, Alessandro;Papa, Ester. And the article was included in Chemical Research in Toxicology in 2020.Electric Literature of C6H10O2 This article mentions the following:

Recent studies have raised concerns about e-cigarette liquid inhalation toxicity by reporting the presence of chems. with European Union CLP toxicity classification. In this scenario, the regulatory context is still developing and is not yet up to date with vaping current reality. Due to the paucity of toxicol. studies, robust data regarding which components in tent. In this study we applied computational methods for studied chems. as a useful tool for predicting the acute toxicity of chems. contained in e-liquids The purpose of t the potential health concerns associated with e-liquid ingredients, (b) to prioritize e-liquid ingredients by calculating the e-tox index, and (c) to estimate acute toxicity of e-liquid mixtures QSAR models were generated using QSARINS software to fill the acute toxicity data gap of 264 e-liquid ingredients. As a second step, the potential acute toxicity of e-liquids mixtures was evaluated. Our preliminary data suggest that a computational approa serve as a roadmap to enable regulatory bodies to better regulate e-liquid composition and to contribute to consumer health protection. In the experiment, the researchers used many compounds, for example, 5-Ethyldihydrofuran-2(3H)-one (cas: 695-06-7Electric Literature of C6H10O2).

5-Ethyldihydrofuran-2(3H)-one (cas: 695-06-7) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits, including apples, durians, pears, bananas, pineapples, and strawberries. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is 绾?valerolactone.Electric Literature of C6H10O2

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

Evolution Analysis of Free Fatty Acids and Aroma-Active Compounds during Tallow Oxidation was written by Song, Shiqing;Zheng, Feiting;Tian, Xiaoyan;Feng, Tao;Yao, Lingyun;Sun, Min;Shi, Lei. And the article was included in Molecules in 2022.Application In Synthesis of 5-Ethyldihydrofuran-2(3H)-one This article mentions the following:

To explore the role of fatty acids as flavor precursors in the flavor of oxidized tallow, the volatile flavor compounds and free fatty acid (FFAs) in the four oxidization stages of tallow were analyzed via gas chromatog. (GC)-mass spectrometry (MS), the aroma characteristics of them were analyzed by GC-olfactory (GC-O) method combined with sensory anal. and partial least-squares regression (PLSR) anal. 12 common FFAs and 35 key aroma-active compounds were obtained. Combined with the results of odor activity value (OAV) and FD factor, benzaldehyde was found to be an important component in unoxidized tallow. (E,E)-2,4-Heptadienal, (E,E)-2,4-decadienal, (E)-2-nonenal, octanal, hexanoic acid, hexanal and (E)-2-heptenal were the key compounds involved in the tallow flavor oxidation The changes in FFAs and volatile flavor compounds during oxidation and the metabolic evolution of key aroma-active compounds are systematically summarized in this study. The paper also provides considerable guidance in oxidation control and meat flavor product development. In the experiment, the researchers used many compounds, for example, 5-Ethyldihydrofuran-2(3H)-one (cas: 695-06-7Application In Synthesis of 5-Ethyldihydrofuran-2(3H)-one).

5-Ethyldihydrofuran-2(3H)-one (cas: 695-06-7) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is 纬-valerolactone.Application In Synthesis of 5-Ethyldihydrofuran-2(3H)-one

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