Category: esters-buliding-blocks

Wen, Rongxin published the artcileTechnological properties and flavour formation potential of yeast strains isolated from traditional dry fermented sausages in Northeast China, Related Products of esters-buliding-blocks, the main research area is Debaryomyces Torulaspora Pichia Candida proteolysis hexanoic acetic acid China.

The technol. properties and flavor formation potential of yeast strains isolated from traditional dry fermented sausages were evaluated. A total of 46 yeast strains were isolated and characterized at the strain level by genotyping. Among them, 34 strains were selected for evaluation of technol. properties (tolerance to acid, salt, and sodium nitrite stresses; proteolytic and lipolytic activities; and biogenic amine formation capacity) based on their genetic profiles. Then, seven strains (Debaryomyces hansenii HRB2, SH4, and HG2; Torulaspora delbrueckii DQ3 and HG7; Pichia kudriavzevii MDJ1; and Candida zeylanoides DQ7) were selected to investigate their flavor formation potential in a fermented sausage model. A total of 56 volatile compounds were detected in all models, of which 17 volatile compounds were the most important flavor contributors with an odor activity value (OAV) > 1. The most remarkable result was the significant production of acid, alc., and esters in the inoculated models, such as acetic acid, hexanoic acid, ethanol, phenethyl alc., Et acetate, and Et hexanoate. Of all the strains, D. hansenii SH4 was considered to be the best flavor producer because it produced multiple compounds with the highest OAVs, which are associated with the development of desirable sensory characteristics in dry sausages.

LWT–Food Science and Technology published new progress about Alcohols Role: ANT (Analyte), BSU (Biological Study, Unclassified), ANST (Analytical Study), BIOL (Biological Study). 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, Related Products of esters-buliding-blocks.

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

Yu, Jing published the artcileUntargeted analysis of microbial metabolites and unsaturated fatty acids in salmon via hydrophilic-lipophilic balanced solid-phase microextraction arrow, SDS of cas: 123-29-5, the main research area is Oreochromis fillet metabolite unsaturated fatty acid hydrophilicity lipophilicity microextraction; Direct immersion SPME; Hydrophilic-lipophilic balanced SPME arrow; Time-domain monitoring; Unsaturated fatty acid; Volatile metabolites.

The ability to detect spoilage and the nutrient content of salmon is critical for ensuring food safety and determining market value. In this paper, we document the development of a hydrophilic-lipophilic balanced solid-phase microextraction arrow that offers better extraction performance than two other com. devices. The devices were also compared using two operational models: headspace microextraction and direct immersion. The multidimensional statistical anal. and heatmap anal. for the headspace microextns. showed that the content levels of volatile metabolites including hydrocarbons, alcs., ketones, acids, amino acids, and ethers increased with longer storage times, indicating an increase in the activity of spoilage-associated bacteria, such as gram-neg. bacteria. For the direct immersion tests, important nutrients, including lipids, sterols, and squalene, were directly extracted from the salmon fillets with high efficiency. Thus, the developed method provides a simple and easy time-domain monitoring strategy for testing the freshness and quality of salmon for consumers.

Food Chemistry published new progress about Alcohols Role: ANT (Analyte), BSU (Biological Study, Unclassified), ANST (Analytical Study), BIOL (Biological Study). 123-29-5 belongs to class esters-buliding-blocks, name is Ethyl nonanoate, and the molecular formula is C11H22O2, SDS of cas: 123-29-5.

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

Welke, Juliane Elisa published the artcileAdaptation of an olfactometric system in a GC-FID in combination with GCxGC/MS to evaluate odor-active compounds of wine, COA of Formula: C6H12O3, the main research area is odor GCFID isoamyl acetate ethyl octanoate decanoate 3methylthio1propanol; Aroma; Comprehensive two-dimensional gas chromatography; GC-O; GC/MS; GCxGC/MS; OSME; Odor; Olfactometry.

A step-by-step approach to easily adapt and use a GC-FID as an olfactometer, as well as a detailed description of acquisition and interpretation of olfactometric data by the OSME (from the Greek word for odor, σμη) method. A Merlot wine was used to exemplifly this strategy and its volatiles were characterized, rendering 43 volatiles in 1D-GC/MS and 142 in GCxGC/MS. GC-O showed the presence of 24 odor-active compounds and GCxGC/MS indicated aditional 14 odor-active compounds, which were found as coelutions. Six compounds (isoamyl acetate, The adapted GC-O in combination with the use of GCxGC/MS may be a tool to more accurate investigation of the odor-active compounds of wine.

Food Chemistry published new progress about Alcohols Role: ANT (Analyte), BSU (Biological Study, Unclassified), ANST (Analytical Study), BIOL (Biological Study). 5405-41-4 belongs to class esters-buliding-blocks, name is Ethyl 3-hydroxybutanoate, and the molecular formula is C6H12O3, COA of Formula: C6H12O3.

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

Lemarcq, Valerie published the artcileFlavor diversification of dark chocolate produced through microwave roasting of cocoa beans, Synthetic Route of 106-32-1, the main research area is dark chocolate flavor microwave roasting cocoa bean.

The impact of microwave roasting cocoa beans on the aroma and phytochem. profile of dark chocolates (70% cocoa) was studied. Three chocolates produced from microwave roasted beans (450 W-55 min, 600 W-35 min, 900 W-20 min) were compared with a chocolate produced from convectively roasted beans (130°C-30 min). Aroma anal. via HS-SPME-GC-MS indicated that microwave roasting of cocoa beans resulted in chocolate with a distinctive aroma profile, compared to the chocolate produced from convectively roasted beans. Increased power input seems the main inducer of elevated levels of aroma compounds Interestingly, the impact of the four treatments on the phytochem. profile, measured via LC-HRMS, of the chocolates was rather comparable. Microwave roasting of cocoa beans was more prone to oxidation, but still within acceptable limits. The results validate that microwave roasting is a promising alternative technique that can be used effectively for chocolate production

LWT–Food Science and Technology published new progress about Aldehydes Role: ANT (Analyte), BSU (Biological Study, Unclassified), ANST (Analytical Study), BIOL (Biological Study). 106-32-1 belongs to class esters-buliding-blocks, name is Ethyl octanoate, and the molecular formula is C10H20O2, Synthetic Route of 106-32-1.

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

Matsumoto, Mayuko published the artcileSelf-assembly of amphiphilic block pendant polymers as microphase separation materials and folded flower micelles, Product Details of C16H30O2, the main research area is self assembly amphiphilic polymer microphase separation folded flower micelle.

Herein, we created amphiphilic polymers bearing hydrophilic/hydrophobic block pendants as a new class of self-assembled materials for microphase separation in the solid state and forming folded flower micelles in water. For this, we designed amphiphilic block methacrylates comprising hydrophilic poly(ethylene glycol) (PEG) and a hydrophobic dodecyl group: DPEG10MA and DPEG23MA. The DPEG10MA and DPEG23MA homopolymers induced microphase separation of the block pendants. For example, the DPEG23MA homopolymer formed lamellar structures; the hydrophilic and crystallized PEG and hydrophobic dodecyl units are alternately layered with about 14 nm domain spacing. In water, random copolymers of PEG Me ether methacrylate and DPEG10MA folded into flower micelles with both looped and linear PEG shells, where the dodecyl groups of the incorporated DPEG10MA assembled to form hydrophobic cores. The micelles further showed thermoresponsive solubility in water. The size, aggregation number, and cloud point of the micelles were controlled by their composition and chain length.

Polymer Chemistry published new progress about Aggregation. 142-90-5 belongs to class esters-buliding-blocks, name is Dodecyl 2-methylacrylate, and the molecular formula is C16H30O2, Product Details of C16H30O2.

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

Jiang, Yajun published the artcileMicrobial dynamics and flavor formation during the traditional brewing of Monascus vinegar, Recommanded Product: Ethyl octanoate, the main research area is Monascus traditional brewing flavor formation microbe; Amino acids; Microbiota community; Monascus vinegar; Network analysis; Organic acids; Volatile compounds.

Monascus vinegar is one of the most famous and popular Chinese vinegars. The present study identified 60 volatile compounds, 23 amino acids, and seven organic acids during the traditional brewing of Monascus vinegar. Acetic acid, alanine, alcs., esters, lactic acid, and valine were the predominant metabolic compounds found during the fermentation process. Komagataeibacter medellinensis, Lactobacillus acetotolerans, Saccharomycopsis fibuligera, Sterigmatomyces halophilus, and Yarrowia lipolytica were the dominant microorganisms during the traditional brewing of Monascus vinegar. Furthermore, based on Spearman’s correlation anal., K. medellinensis showed a pos. correlation with acetic acid, acetoin, benzaldehyde, phenethyl acetate, 4-ethylphenol, proline, threonine, and isoleucine. Saccharomyces cerevisiae was pos. associated with the production of acetoin, benzeneacetaldehyde, 2,3,5-trimethylpyrazine, proline, threonine, and isoleucine. Bacillus velezensis and Yarrowia lipolytica were pos. correlated with esters and alcs., implying that these microorganisms might make a significant contribution to the flavor of vinegar. These findings demonstrated that some microorganisms may play important roles in improving the aromatic quality of Monascus vinegar.

Food Research International published new progress about Amino acids Role: BSU (Biological Study, Unclassified), FFD (Food or Feed Use), BIOL (Biological Study), USES (Uses). 106-32-1 belongs to class esters-buliding-blocks, name is Ethyl octanoate, and the molecular formula is C10H20O2, Recommanded Product: Ethyl octanoate.

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

Jiang, Yajun published the artcileMicrobial dynamics and flavor formation during the traditional brewing of Monascus vinegar, Computed Properties of 123-29-5, the main research area is Monascus traditional brewing flavor formation microbe; Amino acids; Microbiota community; Monascus vinegar; Network analysis; Organic acids; Volatile compounds.

Monascus vinegar is one of the most famous and popular Chinese vinegars. The present study identified 60 volatile compounds, 23 amino acids, and seven organic acids during the traditional brewing of Monascus vinegar. Acetic acid, alanine, alcs., esters, lactic acid, and valine were the predominant metabolic compounds found during the fermentation process. Komagataeibacter medellinensis, Lactobacillus acetotolerans, Saccharomycopsis fibuligera, Sterigmatomyces halophilus, and Yarrowia lipolytica were the dominant microorganisms during the traditional brewing of Monascus vinegar. Furthermore, based on Spearman’s correlation anal., K. medellinensis showed a pos. correlation with acetic acid, acetoin, benzaldehyde, phenethyl acetate, 4-ethylphenol, proline, threonine, and isoleucine. Saccharomyces cerevisiae was pos. associated with the production of acetoin, benzeneacetaldehyde, 2,3,5-trimethylpyrazine, proline, threonine, and isoleucine. Bacillus velezensis and Yarrowia lipolytica were pos. correlated with esters and alcs., implying that these microorganisms might make a significant contribution to the flavor of vinegar. These findings demonstrated that some microorganisms may play important roles in improving the aromatic quality of Monascus vinegar.

Food Research International published new progress about Amino acids Role: BSU (Biological Study, Unclassified), FFD (Food or Feed Use), BIOL (Biological Study), USES (Uses). 123-29-5 belongs to class esters-buliding-blocks, name is Ethyl nonanoate, and the molecular formula is C11H22O2, Computed Properties of 123-29-5.

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

Schelezki, Olaf J. published the artcilePre-fermentation approaches to producing lower alcohol wines from Cabernet Sauvignon and Shiraz: Implications for wine quality based on chemical and sensory analysis, Name: Methyl octanoate, the main research area is wine color tannis volatile fermentation; Alcohol management; Sensory analysis; Tannin; Volatiles; Water addition; Wine aroma; Wine colour.

Pre-fermentative juice substitution with water or early harvest wine has the potential to produce lower alc. wines without critically modifying color or tannin properties and only marginally changing volatile and sensory profiles. Whether this approach is suited to producing lower alc. wines in the absence of excessive grape ripeness remained to be determined The current study extends on pre-fermentative approaches to alc. management under milder grape ripening conditions and builds on an existing study with McLaren Vale Cabernet Sauvignon fruit, allowing for a direct comparison under two distinct vintage conditions. Given its importance to Australia, Shiraz was also included and underwent the same consecutive harvest and juice substitution treatments. Cultivar-dependent implications on wine chem. properties were apparent and declines in wine color and tannin were particularly evident in Shiraz wines, although impacts on overall wine quality and sensory parameters were minor when adjusting musts within the limit of 13.5°Baume.

Food Chemistry published new progress about Anthocyanins Role: BSU (Biological Study, Unclassified), FFD (Food or Feed Use), BIOL (Biological Study), USES (Uses). 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Name: Methyl octanoate.

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

Schelezki, Olaf J. published the artcilePre-fermentation approaches to producing lower alcohol wines from Cabernet Sauvignon and Shiraz: Implications for wine quality based on chemical and sensory analysis, COA of Formula: C10H20O2, the main research area is wine color tannis volatile fermentation; Alcohol management; Sensory analysis; Tannin; Volatiles; Water addition; Wine aroma; Wine colour.

Pre-fermentative juice substitution with water or early harvest wine has the potential to produce lower alc. wines without critically modifying color or tannin properties and only marginally changing volatile and sensory profiles. Whether this approach is suited to producing lower alc. wines in the absence of excessive grape ripeness remained to be determined The current study extends on pre-fermentative approaches to alc. management under milder grape ripening conditions and builds on an existing study with McLaren Vale Cabernet Sauvignon fruit, allowing for a direct comparison under two distinct vintage conditions. Given its importance to Australia, Shiraz was also included and underwent the same consecutive harvest and juice substitution treatments. Cultivar-dependent implications on wine chem. properties were apparent and declines in wine color and tannin were particularly evident in Shiraz wines, although impacts on overall wine quality and sensory parameters were minor when adjusting musts within the limit of 13.5°Baume.

Food Chemistry published new progress about Anthocyanins Role: BSU (Biological Study, Unclassified), FFD (Food or Feed Use), BIOL (Biological Study), USES (Uses). 106-32-1 belongs to class esters-buliding-blocks, name is Ethyl octanoate, and the molecular formula is C10H20O2, COA of Formula: C10H20O2.

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

Schelezki, Olaf J. published the artcilePre-fermentation approaches to producing lower alcohol wines from Cabernet Sauvignon and Shiraz: Implications for wine quality based on chemical and sensory analysis, Name: Methyl decanoate, the main research area is wine color tannis volatile fermentation; Alcohol management; Sensory analysis; Tannin; Volatiles; Water addition; Wine aroma; Wine colour.

Pre-fermentative juice substitution with water or early harvest wine has the potential to produce lower alc. wines without critically modifying color or tannin properties and only marginally changing volatile and sensory profiles. Whether this approach is suited to producing lower alc. wines in the absence of excessive grape ripeness remained to be determined The current study extends on pre-fermentative approaches to alc. management under milder grape ripening conditions and builds on an existing study with McLaren Vale Cabernet Sauvignon fruit, allowing for a direct comparison under two distinct vintage conditions. Given its importance to Australia, Shiraz was also included and underwent the same consecutive harvest and juice substitution treatments. Cultivar-dependent implications on wine chem. properties were apparent and declines in wine color and tannin were particularly evident in Shiraz wines, although impacts on overall wine quality and sensory parameters were minor when adjusting musts within the limit of 13.5°Baume.

Food Chemistry published new progress about Anthocyanins Role: BSU (Biological Study, Unclassified), FFD (Food or Feed Use), BIOL (Biological Study), USES (Uses). 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, Name: Methyl decanoate.

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