Category: esters-buliding-blocks

The effect of different decontamination methods on the microbial load, bioactive components, aroma and colour of spice paprika was written by Molnar, Helga;Bata-Vidacs, Ildiko;Baka, Erzsebet;Cserhalmi, Zsuzsanna;Ferenczi, Sandor;Tomoskozi-Farkas, Rita;Adanyi, Nora;Szekacs, Andras. And the article was included in Food Control in 2018.Related Products of 106-73-0 The following contents are mentioned in the article:

Among condiments, paprika is one of the most important ones used both for flavouring and improving other sensorial properties of foods. Because of their agricultural origin, spices are often naturally contaminated with various bacteria due to poor sanitation during growth, harvest, drying, and storage. In this study different decontamination methods were compared regarding microbial decontamination efficacy and maintaining the biochem., aroma and color properties. Irradiation and steaming, were found to be highly effective for microbial decontamination of spice paprika powders. Only slight changes were detected due to the decontamination treatment for bioactive component content, however significant changes were observed in the levels of volatile aroma compounds Alternative decontamination methods, such as microwave heating alone and combined with re-wetting and intensive mixing, or radio-frequency heat treatment alone were also performed to evaluate the effect of these treatments. These methods were found to be less effective in the reduction of the mesophilic aerobic total bacterial counts, while the levels of molds were significantly reduced, if the samples were held for 10 min at the given incubation temperatures The treatments did not significantly affect chem. compositional parameters, but sample color was appeared adversely affected. This study involved multiple reactions and reactants, such as Methyl heptanoate (cas: 106-73-0Related Products of 106-73-0).

Methyl heptanoate (cas: 106-73-0) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.Related Products of 106-73-0

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

Hippophae rhamnoides berry related Pichia kudriavzevii yeast volatiles modify behaviour of Rhagoletis batava flies was written by Mozuraitis, Raimondas;Aleknavicius, Dominykas;Vepstaite-Monstavice, Igle;Staneviciene, Ramune;Emami, Seyedeh Noushin;Apsegaite, Violeta;Radziute, Sandra;Blazyte-Cereskiene, Laima;Serviene, Elena;Buda, Vincas. And the article was included in Journal of Advanced Research in 2020.Product Details of 2198-61-0 The following contents are mentioned in the article:

Olfactory cues have a large impact on insect behavior and fitness consequently showing potential in pest management. Yeast released volatiles are used by insects as olfactory cues for finding feeding and oviposition sites. The yeast strain SB-16-15 was isolated from spontaneous fermentation of Hippophae rhamnoides berries and identified as Pichia kudriavzevii. Thirty-nine volatiles were sampled from the headspace of P. kudriavzevii yeasts by solid phase micro extraction and identified by gas chromatog. and mass spectrometry techniques. Ten of those volatiles elicited antennal responses of Rhagoletis batava flies, one of the most serious pest of H. rhamnoides berries. In the two-choice experiments, R. batava flies preferred the mixture composed of nine synthetic compounds analogs to electroanntenog. active volatiles released by the yeasts compare to the solvent control. Female flies were significantly attracted to the mixture at the concentration 0.1 μL mL^-1 and showed no preference to the mixture at the concentration 1 μL mL^-1 vs. control while males reacted pos. to the synthetic blend at the concentration 1 μL mL^-1. Herein, for the first time, behavior modifying effect of H. rhamnoides berry related yeast volatiles was shown suggesting these semiochems. have potential in use for monitoring R. batava flies. This study involved multiple reactions and reactants, such as Isopentyl hexanoate (cas: 2198-61-0Product Details of 2198-61-0).

Isopentyl hexanoate (cas: 2198-61-0) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are common in organic chemistry and biological materials.Product Details of 2198-61-0

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

A multi-omics framework reveals strawberry flavor genes and their regulatory elements was written by Fan, Zhen;Tieman, Denise M.;Knapp, Steven J.;Zerbe, Philipp;Famula, Randi;Barbey, Christopher R.;Folta, Kevin M.;Amadeu, Rodrigo R.;Lee, Manbo;Oh, Youngjae;Lee, Seonghee;Whitaker, Vance M.. And the article was included in New Phytologist in 2022.Computed Properties of C10H20O2 The following contents are mentioned in the article:

Flavor is essential to consumer preference of foods and is an increasing focus of plant breeding programs. In fruit crops, identifying genes underlying volatile organic compounds has great promise to accelerate flavor improvement, but polyploidy and heterozygosity in many species have slowed progress. Here we use octoploid cultivated strawberry to demonstrate how genomic heterozygosity, transcriptomic intricacy and fruit metabolomic diversity can be treated as strengths and leveraged to uncover fruit flavor genes and their regulatory elements. Multi-omics datasets were generated including an expression quant. trait loci map with 196 diverse breeding lines, haplotype-phased genomes of a highly-flavored breeding selection, a genome-wide structural variant map using five haplotypes, and volatile genome-wide association study (GWAS) with > 300 individuals. Overlaying regulatory elements, structural variants and GWAS-linked allele-specific expression of numerous genes to variation in volatile compounds important to flavor. In one example, the functional role of anthranilate synthase alpha subunit 1 in Me anthranilate biosynthesis was supported via fruit transient gene expression assays. These results demonstrate a framework for flavor gene discovery in fruit crops and a pathway to mol. breeding of cultivars with complex and desirable flavor. This study involved multiple reactions and reactants, such as Octyl acetate (cas: 112-14-1Computed Properties of C10H20O2).

Octyl acetate (cas: 112-14-1) 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. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Computed Properties of C10H20O2

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

Solubility determination, model evaluation, Hansen solubility parameter and thermodynamic properties of benorilate in six pure solvents and two binary solvent mixtures was written by Sha, Jiao;Ma, Teng;Huang, Zibo;Hu, Xiaoran;Zhang, Ruke;Cao, Zidan;Wan, Yameng;Sun, Renren;He, Haixia;Jiang, Gaoliang;Li, Yu;Li, Tao;Ren, Baozeng. And the article was included in Journal of Chemical Thermodynamics in 2021.Safety of 4-Acetamidophenyl 2-acetoxybenzoate The following contents are mentioned in the article:

The equilibrium solubility and thermodn. properties of benorilate in six pure solvents (Me acetate, Pr acetate, Bu acetate, n-pentyl acetate, DMAC and DMSO) and two binary solvents (DMAC + n-pentyl acetate, DMSO + n-pentyl acetate) were reported. Solubility determinations were performed through the laser monitoring method at T = (278.15-323.15) K and p = 0.1 MPa, except DMSO at (293.15-323.15) K. The measurement results illustrated that the solubility of benorilate in all the six mono-solvents and two binary solvents shows a pos. relation with temperature variation. And with the mass fraction of pos. solvents (DMAC, DMSO) in the binary mixed solvents increasing, the solubility of benorilate also rises. And then, the Hansen solubility parameter (HSP) of benorilate as well as solvents selected were summarized to analyze the probabilities of miscibility between solute and solvents. The results indicate that the HSP could explain the solubility trend well, and the miscibility of benorilate with selected solvents is caused by a combination of factors. In addition, all recorded solubility of benorilate in pure solvents were regressed by λh, modified Apleblat, Two-Suffix Margules, NRTL and UNIQUAC models, while solubility of benorilate in two binary solvents were regressed by λh, modified Apleblat, Three-Suffix Margules, NRTL and UNIQUAC models. This study involved multiple reactions and reactants, such as 4-Acetamidophenyl 2-acetoxybenzoate (cas: 5003-48-5Safety of 4-Acetamidophenyl 2-acetoxybenzoate).

4-Acetamidophenyl 2-acetoxybenzoate (cas: 5003-48-5) 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. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Safety of 4-Acetamidophenyl 2-acetoxybenzoate

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

Structure-Odor Relationship Study on Geraniol, Nerol, and Their Synthesized Oxygenated Derivatives was written by Elsharif, Shaimaa Awadain;Buettner, Andrea. And the article was included in Journal of Agricultural and Food Chemistry in 2018.Safety of (2E,6E)-3,7-Dimethyl-8-oxoocta-2,6-dien-1-yl acetate The following contents are mentioned in the article:

Despite being isomers having the same citrus-like, floral odor, geraniol, 1, and nerol, 3, show different odor thresholds. To date, no systematic studies are at hand elucidating the structural features required for their specific odor properties. Therefore, starting from these two basic structures and their corresponding esters, namely, geranyl acetate, 2, and neryl acetate, 4, a total of 12 oxygenated compounds were synthesized and characterized regarding retention indexes (RI), mass spectrometric (MS), and NMR (NMR) data. All compounds were individually tested for their odor qualities and odor thresholds in air (OT). Geraniol, the Z-isomer, with an OT of 14 ng/L, was found to be more potent than its E-isomer, nerol, which has an OT of 60 ng/L. However, 8-oxoneryl acetate was the most potent derivative within this study, exhibiting an OT of 8.8 ng/L, whereas 8-oxonerol was the least potent with an OT of 493 ng/L. Interestingly, the 8-oxo derivatives smell musty and fatty, whereas the 8-hydroxy derivatives show odor impressions similar to those of 1 and 3. 8-Carboxygeraniol was found to be odorless, whereas its E-isomer, 8-carboxynerol, showed fatty, waxy, and greasy impressions. Overall, we observed that oxygenation on C-8 affects mainly the odor quality, whereas the E/Z position of the functional group on C-1 affects the odor potency. This study involved multiple reactions and reactants, such as (2E,6E)-3,7-Dimethyl-8-oxoocta-2,6-dien-1-yl acetate (cas: 37905-02-5Safety of (2E,6E)-3,7-Dimethyl-8-oxoocta-2,6-dien-1-yl acetate).

(2E,6E)-3,7-Dimethyl-8-oxoocta-2,6-dien-1-yl acetate (cas: 37905-02-5) 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 are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.Safety of (2E,6E)-3,7-Dimethyl-8-oxoocta-2,6-dien-1-yl acetate

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

Volatilomic Signatures of AGS and SNU-1 Gastric Cancer Cell Lines was written by Slefarska-Wolak, Daria;Heinzle, Christine;Leiherer, Andreas;Ager, Clemens;Muendlein, Axel;Mezmale, Linda;Leja, Marcis;Corvalan, Alejandro H.;Drexel, Heinz;Krolicka, Agnieszka;Shani, Gidi;Mayhew, Christopher A.;Haick, Hossam;Mochalski, Pawel. And the article was included in Molecules in 2022.Electric Literature of C15H22O2 The following contents are mentioned in the article:

In vitro studies can help reveal the biochem. pathways underlying the origin of volatile indicators of numerous diseases. The key objective of this study is to identify the potential biomarkers of gastric cancer. For this purpose, the volatilomic signatures of two human gastric cancer cell lines, AGS (human gastric adenocarcinoma) and SNU-1 (human gastric carcinoma), and one normal gastric mucosa cell line (GES-1) were investigated. More specifically, gas chromatog. mass spectrometry has been applied to pinpoint changes in cell metabolism triggered by cancer. In total, ten volatiles were found to be metabolized, and thirty-five were produced by cells under study. The volatiles consumed were mainly six aldehydes and two heterocyclics, whereas the volatiles released embraced twelve ketones, eight alcs., six hydrocarbons, three esters, three ethers, and three aromatic compounds The SNU-1 cell line was found to have significantly altered metabolism in comparison to normal GES-1 cells. This was manifested by the decreased production of alcs. and ketones and the upregulated emission of esters. The AGS cells exhibited the increased production of Me ketones containing an odd number of carbons, namely 2-tridecanone, 2-pentadecanone, and 2-heptadecanone. This study provides evidence that the cancer state modifies the volatilome of human cells. This study involved multiple reactions and reactants, such as 2-Ethylhexyl benzoate (cas: 5444-75-7Electric Literature of C15H22O2).

2-Ethylhexyl benzoate (cas: 5444-75-7) 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.Electric Literature of C15H22O2

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

Fractionation and identification of minor and aroma-active constituents in Kangra orthodox black tea was written by Joshi, Robin;Gulati, Ashu. And the article was included in Food Chemistry in 2015.Product Details of 5444-75-7 The following contents are mentioned in the article:

The aroma constituents of Kangra orthodox black tea were isolated by simultaneous distillation extraction (SDE), supercritical fluid extraction and beverage method. The aroma-active compounds were identified using gas chromatog.-olfactometry-mass spectrometry. Geraniol, linalool, (Z/E)-linalool oxides, (E)-2-hexenal, phytol, β-ionone, hotrienol, methylpyrazine and Me salicylate were major volatile constituents in all the extracts Minor volatile compounds in all the extracts were 2-ethyl-5-methylpyrazine, ethylpyrazine, 2-6,10,14-trimethyl-2-pentadecanone, acetylfuran, hexanoic acid, dihydroactinidiolide and (E/Z)-2,6-nonadienal. The concentrated SDE extract was fractionated into acidic, basic, water-soluble and neutral fractions. The neutral fraction was further chromatographed on a packed silica gel column eluted with pentane and di-Et ether to sep. minor compounds The aroma-active compounds identified using gas chromatog.-olfactometry-mass spectrometry were 2-amylfuran, (E/Z)-2,6-nonadienal, 1-pentanol, epoxylinalool, (Z)-jasmone, 2-acetylpyrrole, farnesyl acetone, geranyl acetone, cadinol, cubenol and dihydroactinidiolide. AEDA studies showed 2-hexenal, 3-hexenol, ethylpyrazine, (Z/E)-linalool oxides, linalool, (E/Z)-2,6-nonadienal, geraniol, phenylethanol, β-ionone, hotrienol and dihydroactinidiolide to be odor active components. This study involved multiple reactions and reactants, such as 2-Ethylhexyl benzoate (cas: 5444-75-7Product Details of 5444-75-7).

2-Ethylhexyl benzoate (cas: 5444-75-7) 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 γ-valerolactone.Product Details of 5444-75-7

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

Contemporary analytical techniques reveal the secret composition of a 19th century Jerusalem Balsam was written by Kurkiewicz, S.;Pietryja, M. J.;Dzierzega-Lecznar, A.;Stepien, K.;Kurkiewicz, M.;Blonska-Fajfrowska, B.;Boryczka, S.. And the article was included in Pharmazie in 2020.Quality Control of Ethyl 3-ethoxypropanoate The following contents are mentioned in the article:

In 1719, Antonio Menzani di Cuna from the Saint Savior monastery published an alc. extract formula made from plant and herb resins under the name Jerusalem Balsam. The Balsam gained high popularity due to its remedial benefits. At the end of the 19th century, Jerusalem Balsam produced by the hermit Johannes Treutler was found to be particularly popular. We analyzed a sample of a valuable find coming from the last decade of the 19th century, making it probably the oldest surviving Jerusalem Balsam in the world. The purpose of this work was to investigate the composition of the historical sample and to try to determine the origin of its components. This was achieved by comparing the profile of volatile compounds extracted from the balsam using HS-SPME technique with the profile characteristic for plant resins as classic ingredients of the Johannes Treutler formula. The use of two chromatog. columns of different polarity, as well as the transformation of the polar components of the sample into TMS derivatives, allowed to obtain new information on the historical composition of the Balsam. Also, it can be stated with high probability that plant resins were indeed used in the production of the Balsam as referred to in the original recipe of Johannes Treutler. We also discuss challenges in determining the original composition of the Balsam. This study involved multiple reactions and reactants, such as Ethyl 3-ethoxypropanoate (cas: 763-69-9Quality Control of Ethyl 3-ethoxypropanoate).

Ethyl 3-ethoxypropanoate (cas: 763-69-9) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Quality Control of Ethyl 3-ethoxypropanoate

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

Preparation of domoic acid analogues using a bioconversion system, and their toxicity in mice was written by Maeno, Yukari;Kotaki, Yuichi;Terada, Ryuta;Hidaka, Masafumi;Cho, Yuko;Konoki, Keiichi;Yotsu-Yamashita, Mari. And the article was included in Organic & Biomolecular Chemistry in 2021.Recommanded Product: (2E,6E)-3,7-Dimethyl-8-oxoocta-2,6-dien-1-yl acetate The following contents are mentioned in the article:

Domoic acid (1, DA), a member of the natural kainoid family, is a potent agonist of ionotropic glutamate receptors in the central nervous system. The chem. synthesis of DA and its derivatives requires considerable effort to establish a pyrrolidine ring containing three contiguous stereocenters. Recently, a biosynthetic cyclase for DA, DabC, was identified. This enzyme cyclizes the linear precursor of isodomoic acid A (IA) to IA, a bioactive DA analog. In this study, we developed a bioconversion system to obtain DA analogs from linear substrates prepared by simple chem. synthesis using DabC expressed in Escherichia coli, in vivo. Three IA analogs with various substitutions at the C7′-geranyl terminus were prepared using this system: two minor natural analogs, 7′-methyl-IA (5) and 7′-hydroxy-IA (6), and one new unnatural analog, 7′-amide-IA (7). In addition, the toxicity of these DA analogs in mice was examined by intracerebroventricular injection. Most of the mice injected with 5 (3 nmol) and 6 (3 nmol) did not show any adverse symptoms, whereas the mice injected with 7 (3 nmol) showed typical symptoms induced by DA (1, 0.7 nmol) and IA (2, 3 nmol). These results suggest that the 7′-carbonyl group in the side chain of IA (2) is crucial for its toxicity. The docking studies of DA, IA (2), 5, 6, and 7 to GluK1 supported these results. This study involved multiple reactions and reactants, such as (2E,6E)-3,7-Dimethyl-8-oxoocta-2,6-dien-1-yl acetate (cas: 37905-02-5Recommanded Product: (2E,6E)-3,7-Dimethyl-8-oxoocta-2,6-dien-1-yl acetate).

(2E,6E)-3,7-Dimethyl-8-oxoocta-2,6-dien-1-yl acetate (cas: 37905-02-5) 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. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C 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. Recommanded Product: (2E,6E)-3,7-Dimethyl-8-oxoocta-2,6-dien-1-yl acetate

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

Flavor differences between commercial and traditional soybean paste was written by Zhang, Xiao;Wei, Jianping;Zhao, Shiyu;Jia, Hang;Guo, Chunfeng;Wang, Zhouli;Gao, Zhenpeng;Yue, Tianli;Yuan, Yahong. And the article was included in LWT–Food Science and Technology in 2021.SDS of cas: 106-73-0 The following contents are mentioned in the article:

Fermented soybean paste is becoming popular worldwide due to its umami taste and characteristic aroma. To elucidate the relationships between the odorants and the flavor differences of com. soybean paste (CSP) and traditional soybean paste (TSP), 49 samples (13 CSP, 36 TSP) were collected and evaluated in this research. The aroma-active compounds of CSP and TSP samples were analyzed by electronic nose, gas chromatog.-olfactometry-mass spectrometry combined with aroma extract dilution anal., and the key aroma compounds were identified by calculation of the detection rates and odor activity values. Following characterization, 23 and 19 odorants were identified as key aroma compounds contributing to flavor differences in CSP and TSP samples, resp. Significant differences were observed for the acids, alcs., aldehydes, terpenes, and sulfur-containing compounds The results showed that the flavor differences of the samples were more resulted from the concentrations of the key aroma compounds rather than their compositions and those differences mainly came from the long maturation period of TSP samples and heating process of CSP samples. Further, orthogonal partial least squares discrimination anal. revealed that the key aroma compounds identified in this research could explain the flavor differences of com. and traditional soybean pastes. This study involved multiple reactions and reactants, such as Methyl heptanoate (cas: 106-73-0SDS of cas: 106-73-0).

Methyl heptanoate (cas: 106-73-0) 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. Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are common in organic chemistry and biological materials.SDS of cas: 106-73-0

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