Month: December 2022

Analysis of volatile composition of Chinese oat wine and Chinese quinoa wine by headspace solid phase micro-extraction and gas chromatography-mass spectrometry was written by Liu, Hao;Liu, Xiao-jie;Ren, Gui-xing. And the article was included in Shipin Gongye Keji in 2015.Name: 2-Ethylhexyl benzoate The following contents are mentioned in the article:

The volatile characteristics of Chinese oat wine and Chinese quinoa wine were investigated using headspace solid phase micro-extraction and gas chromatog.-mass spectrometry. A total of 86 volatile components were identified with 26 kinds existing simultaneously in both. And there were 57 and 55 volatile components in Chinese oat wine and Chinese quinoa wine resp. The volatile composition of Chinese quinoa wine was 15 kinds of volatile compounds (64.09%), 7 kinds of alcs. (29.36%), 13 kinds of esters (4.37%) and 22 kinds of other compounds (2.18%) while the Chinese oat wine was composed of 14 kinds of volatile compounds (43.77%), 6 kinds of alcs. (27.39%), 15 kinds of esters (22.66%) and 22 kinds of others (6.18%). The volatile compounds in high content were phenylethyl alc. and 3-methyl-1-butanol. Some compounds such as BHA and BHT were also detected in both two wines and which suggested that Chinese oat wine and Chinese quinoa wine might have strong anti-oxidant activity. This study involved multiple reactions and reactants, such as 2-Ethylhexyl benzoate (cas: 5444-75-7Name: 2-Ethylhexyl benzoate).

2-Ethylhexyl benzoate (cas: 5444-75-7) 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. 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.Name: 2-Ethylhexyl benzoate

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

Metabolic Changes during Storage of Brassica napus Seeds under Moist Conditions and the Consequences for the Sensory Quality of the Resulting Virgin Oil was written by Bonte, Anja;Schweiger, Rabea;Pons, Caroline;Wagner, Claudia;Bruehl, Ludger;Matthaeus, Bertrand;Mueller, Caroline. And the article was included in Journal of Agricultural and Food Chemistry in 2017.Safety of Isopropylisothiocyanate The following contents are mentioned in the article:

Virgin rapeseed (Brassica napus) oil is a valuable niche product, if delivered with a high quality. In this study, the effects of moist storage of B. napus seeds for 1 to 4 days on the seed metabolome and the chemo-sensory properties of the produced oils were determined The concentrations of several primary metabolites, including monosaccharides and amino acids, rapidly increased in the seeds, probably indicating the breakdown of storage compounds to support seed germination. Seed concentrations of indole glucosinolates increased with a slight time offset suggesting that amino acids may be used to modify secondary metabolism The volatile profiles of the oils were pronouncedly influenced by moist seed storage, with the sensory quality of the oils decreasing. This study provides a direct time-resolved link between seed metabolism under moist conditions and the quality of the resulting oils, thereby emphasizing the crucial role of dry seed storage in ensuring high oil quality. This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8Safety of Isopropylisothiocyanate).

Isopropylisothiocyanate (cas: 2253-73-8) 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. 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.Safety of Isopropylisothiocyanate

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

Discovery of simplified benzazole fragments derived from the marine benzosceptrin B as necroptosis inhibitors involving the receptor interacting protein Kinase-1 was written by Benchekroun, Mohamed;Ermolenko, Ludmila;Tran, Minh Quan;Vagneux, Agathe;Nedev, Hristo;Delehouze, Claire;Souab, Mohamed;Baratte, Blandine;Josselin, Beatrice;Iorga, Bogdan I.;Ruchaud, Sandrine;Bach, Stephane;Al-Mourabit, Ali. And the article was included in European Journal of Medicinal Chemistry in 2020.Formula: C4H7NS The following contents are mentioned in the article:

With the aim to develop new chem. tools based on simplified natural metabolites to help deciphering the mol. mechanism of necroptosis, simplified benzazole fragments including 2-aminobenzimidazole and the 2-aminobenzothiazole analogs were prepared during the synthesis of the marine benzosceptrin B. Compounds inhibiting the RIPK1 protein kinase were discovered. A library of 54 synthetic analogs were prepared and evaluated through a phenotypic screen using the inhibition of the necrotic cell death induced by TNF-α in human Jurkat T cells deficient for the FADD protein. This article reports the design, synthesis and biol. evaluation of a series of 2-aminobenzazoles on the necroptotic cell death through the inhibition of RIPK1 protein kinase. The 2-aminobenzimidazole and 2-aminobenzothiazole platforms presented herein can serve as novel chem. tools to study the mol. regulation of necroptosis and further develop lead drug candidates for chronic pathologies involving necroptosis. This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8Formula: C4H7NS).

Isopropylisothiocyanate (cas: 2253-73-8) 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° 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. Formula: C4H7NS

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

Discovery of simplified benzazole fragments derived from the marine benzosceptrin B as necroptosis inhibitors involving the receptor interacting protein Kinase-1 was written by Benchekroun, Mohamed;Ermolenko, Ludmila;Tran, Minh Quan;Vagneux, Agathe;Nedev, Hristo;Delehouze, Claire;Souab, Mohamed;Baratte, Blandine;Josselin, Beatrice;Iorga, Bogdan I.;Ruchaud, Sandrine;Bach, Stephane;Al-Mourabit, Ali. And the article was included in European Journal of Medicinal Chemistry in 2020.Recommanded Product: 2253-73-8 The following contents are mentioned in the article:

With the aim to develop new chem. tools based on simplified natural metabolites to help deciphering the mol. mechanism of necroptosis, simplified benzazole fragments including 2-aminobenzimidazole and the 2-aminobenzothiazole analogs were prepared during the synthesis of the marine benzosceptrin B. Compounds inhibiting the RIPK1 protein kinase were discovered. A library of 54 synthetic analogs were prepared and evaluated through a phenotypic screen using the inhibition of the necrotic cell death induced by TNF-α in human Jurkat T cells deficient for the FADD protein. This article reports the design, synthesis and biol. evaluation of a series of 2-aminobenzazoles on the necroptotic cell death through the inhibition of RIPK1 protein kinase. The 2-aminobenzimidazole and 2-aminobenzothiazole platforms presented herein can serve as novel chem. tools to study the mol. regulation of necroptosis and further develop lead drug candidates for chronic pathologies involving necroptosis. This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8Recommanded Product: 2253-73-8).

Isopropylisothiocyanate (cas: 2253-73-8) 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.Recommanded Product: 2253-73-8

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

Changes of Flavor Compounds of Hydrolyzed Chicken Bone Extracts during Maillard Reaction was written by Sun, Hong-Mei;Wang, Jin-Zhi;Zhang, Chun-Hui;Li, Xia;Xu, Xiong;Dong, Xian-Bing;Hu, Li;Li, Chun-Hong. And the article was included in Journal of Food Science in 2014.Application In Synthesis of 2-Ethylhexyl benzoate The following contents are mentioned in the article:

Flavor quality, including non-volatile and volatile compounds, of hydrolyzed chicken bone extracts (HCBE) during Maillard reaction (MR) was evaluated with HPLC, tasting sensory system, Electronic-Nose (E-nose), and GC-MS. Results showed that flavor amino acids (AA) accounted for 72% to 74% of total free AA in HCBE. Taste of umami increased first and then decreased during MR, while equivalent umami concentration remained at a stable level. Results of taste sensing system and bitter AA showed that MR could reduce the bitter taste of HCBE significantly. E-Nose test showed there are great changes of volatile flavor during MR. And total of 59 volatile compounds were identified in HCBE during MR, which should responsible for the increase of flavor in HCBE. Our results indicated that MR could be used as an effective way to change the flavor compounds in HCBE, and therefore provide a strategy for preparation of meaty flavor enhancer from bone residue as a byproduct of meat industry. This study involved multiple reactions and reactants, such as 2-Ethylhexyl benzoate (cas: 5444-75-7Application In Synthesis of 2-Ethylhexyl benzoate).

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. 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.Application In Synthesis of 2-Ethylhexyl benzoate

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

Prediction of Collision Cross Section Values: Application to Non-Intentionally Added Substance Identification in Food Contact Materials was written by Song, Xue-Chao;Dreolin, Nicola;Damiani, Tito;Canellas, Elena;Nerin, Cristina. And the article was included in Journal of Agricultural and Food Chemistry in 2022.Category: esters-buliding-blocks The following contents are mentioned in the article:

The synthetic chems. in food contact materials can migrate into food and endanger human health. In this study, the traveling wave collision cross section in nitrogen values of more than 400 chems. in food contact materials were exptl. derived by traveling wave ion mobility spectrometry. A support vector machine-based collision cross section (CCS) prediction model was developed based on CCS values of food contact chems. and a series of mol. descriptors. More than 92% of protonated and 81% of sodiated adducts showed a relative deviation below 5%. Median relative errors for protonated and sodiated mols. were 1.50 and 1.82%, resp. The model was then applied to the structural annotation of oligomers migrating from polyamide adhesives. The identification confidence of 11 oligomers was improved by the direct comparison of the exptl. data with the predicted CCS values. Finally, the challenges and opportunities of current machine-learning models on CCS prediction were also discussed. This study involved multiple reactions and reactants, such as Diphenyl carbonate (cas: 102-09-0Category: esters-buliding-blocks).

Diphenyl carbonate (cas: 102-09-0) 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.Category: esters-buliding-blocks

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

Prediction of Collision Cross Section Values: Application to Non-Intentionally Added Substance Identification in Food Contact Materials was written by Song, Xue-Chao;Dreolin, Nicola;Damiani, Tito;Canellas, Elena;Nerin, Cristina. And the article was included in Journal of Agricultural and Food Chemistry in 2022.Reference of 1731-94-8 The following contents are mentioned in the article:

The synthetic chems. in food contact materials can migrate into food and endanger human health. In this study, the traveling wave collision cross section in nitrogen values of more than 400 chems. in food contact materials were exptl. derived by traveling wave ion mobility spectrometry. A support vector machine-based collision cross section (CCS) prediction model was developed based on CCS values of food contact chems. and a series of mol. descriptors. More than 92% of protonated and 81% of sodiated adducts showed a relative deviation below 5%. Median relative errors for protonated and sodiated mols. were 1.50 and 1.82%, resp. The model was then applied to the structural annotation of oligomers migrating from polyamide adhesives. The identification confidence of 11 oligomers was improved by the direct comparison of the exptl. data with the predicted CCS values. Finally, the challenges and opportunities of current machine-learning models on CCS prediction were also discussed. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8Reference of 1731-94-8).

Methyl nonadecanoate (cas: 1731-94-8) 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.Reference of 1731-94-8

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

Prediction of Collision Cross Section Values: Application to Non-Intentionally Added Substance Identification in Food Contact Materials was written by Song, Xue-Chao;Dreolin, Nicola;Damiani, Tito;Canellas, Elena;Nerin, Cristina. And the article was included in Journal of Agricultural and Food Chemistry in 2022.Recommanded Product: 31566-31-1 The following contents are mentioned in the article:

The synthetic chems. in food contact materials can migrate into food and endanger human health. In this study, the traveling wave collision cross section in nitrogen values of more than 400 chems. in food contact materials were exptl. derived by traveling wave ion mobility spectrometry. A support vector machine-based collision cross section (CCS) prediction model was developed based on CCS values of food contact chems. and a series of mol. descriptors. More than 92% of protonated and 81% of sodiated adducts showed a relative deviation below 5%. Median relative errors for protonated and sodiated mols. were 1.50 and 1.82%, resp. The model was then applied to the structural annotation of oligomers migrating from polyamide adhesives. The identification confidence of 11 oligomers was improved by the direct comparison of the exptl. data with the predicted CCS values. Finally, the challenges and opportunities of current machine-learning models on CCS prediction were also discussed. This study involved multiple reactions and reactants, such as Glyceryl monostearate (cas: 31566-31-1Recommanded Product: 31566-31-1).

Glyceryl monostearate (cas: 31566-31-1) 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. 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.Recommanded Product: 31566-31-1

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

Comparison of the effects of novel processing technologies and conventional thermal pasteurisation on the nutritional quality and aroma of Mandarin (Citrus unshiu) juice was written by Cheng, Chuan-xiang;Jia, Meng;Gui, Yao;Ma, Yaqin. And the article was included in Innovative Food Science & Emerging Technologies in 2020.Category: esters-buliding-blocks The following contents are mentioned in the article:

Conventional thermal pasteurization (90°C and 30 s), high pressure processing (HPP: 600 MPa, 4°C and 300 s), ultrasound processing (US: 50°C, 750 W and 36 min) and microwave processing (MW: 800 W, 80°C and 70 s) were evaluated by examining their effects on the sensory and nutritional qualities of mandarin juice. The treated samples had < 2 log CFU/mL total aerobic bacteria, which is equivalent to microorganism inactivation. Sugar and acid components were almost constant for all the treated mandarin juices, and no differences between treatments were perceptible. However, the mandarin juice treated with novel technologies maintained better color (L*, a* and b*), nutritional value (ascorbic acid, total phenolic, total carotenoid content and phenolic components) and aroma than the thermally pasteurized one. This study showed that US, MW and HPP are good novel processing techniques to inactivate microorganisms and maintain the sensory and nutritional quality of mandarin juice. This study involved multiple reactions and reactants, such as Octyl acetate (cas: 112-14-1Category: esters-buliding-blocks).

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, including apples, durians, pears, bananas, pineapples, and strawberries. 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.Category: esters-buliding-blocks

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

Insights into the formation and digestive properties of lotus seed starch-glycerin monostearate complexes formed by freeze-thaw pretreatment and microfluidization was written by Ou, Yujia;Wei, Zhixi;Jiang, Xiangfu;Wu, Guoyan;Xie, Wen;Zheng, Baodong;Zeng, Hongliang. And the article was included in International Journal of Biological Macromolecules in 2022.Recommanded Product: 31566-31-1 The following contents are mentioned in the article:

The objective of this paper was to investigate the formation and digestive properties of lotus seed starch-glycerin monostearate complexes (LSG) formed by freeze-thaw pretreatment and microfluidization. The results showed that the preparation of LSG with six freeze-thaw cycles at 60 MPa had the highest complex index (69.92%). The formation of LSG led to the conversion of the crystalline pattern of lotus seed starch from C-type to V-type and increased the proportion of the microcrystalline region. In addition, the digestive results indicated that LSG had a high resistance to digestive enzymes, which was conducive to increasing the content of resistant starch. Based on the above investigation, the formation and digestive properties showed that the appropriate number of freeze-thaw cycles of pretreatment could facilitate the complexation of starch and lipid under low-pressure microfluidization, which made for the directional regulation of helical conformation and anti-digestion. This study involved multiple reactions and reactants, such as Glyceryl monostearate (cas: 31566-31-1Recommanded Product: 31566-31-1).

Glyceryl monostearate (cas: 31566-31-1) 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.Recommanded Product: 31566-31-1

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