Month: December 2022

Guo, Jing published the artcileImpact of polyphenols on the headspace concentration of aroma compounds in apple cider, Related Products of esters-buliding-blocks, the main research area is apple cider aroma compound polyphenol; (−)-epicatechin; apple cider; aroma-polyphenol interaction; hydrocaffeic acid; phloridzin.

BACKGROUND : To study the effect of polyphenols on the release of aroma compounds in apple cider, the impact of (-)-epicatechin, hydrocaffeic acid and phloridzin on volatility of 12 typical aroma compounds was investigated by headspace solid phase microextraction and gas chromatog.-mass spectrometry. RESULTS : Anal. of variance results showed that increased concentrations of the phenolic compounds significantly affected the headspace concentration of most aroma compounds The three polyphenols induced a volatility decrease for the majority of hydrophobic aroma compounds, while they exhibited an opposite behavior by salting out some hydrophilic alcs. (-)-Epicatechin and hydrocaffeic acid showed a higher retention effect on most hydrophobic aroma compounds than phloridzin did. CONCLUSION : This study showed that the polyphenols had varying effects on aroma compound volatility in apple cider. The physicochem. characteristics and spatial conformation of polyphenols and aroma compounds influenced the magnitude of aroma-polyphenol interaction in apple cider. Understanding the effects of polyphenols on aroma release can improve the prediction of aroma profiles through chem. anal., which assists cidermakers in improving the aroma quality of apple cider.

Journal of the Science of Food and Agriculture published new progress about Apple wine. 106-32-1 belongs to class esters-buliding-blocks, name is Ethyl octanoate, and the molecular formula is C10H20O2, Related Products of esters-buliding-blocks.

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

Ignacia Lambert-Royo, Maria published the artcileThe diversity of effects of yeast derivatives during sparkling wine aging, Computed Properties of 110-42-9, the main research area is Saccharomyces Torulaspora sparkling wine aging; Foaming; Sensory analysis; Sparkling wine; Volatile compounds; Wine aging; Yeast derivatives.

This study shows the monitoring of the phys., chem. and sensorial changes that occur in the sparkling wine along 18 mo of aging due to different typol. yeast-derived products; dry inactivated yeast from Saccharomyces (Saccharomyces cerevisiae) and non-Saccharomyces (Torulaspora delbrueckii) yeast strains, yeast autolyzate, and yeast protein extract tested at two different doses. The addition of 5 g/hL yeast protein extract and inactivated yeast from T. delbrueckii helped to preserve esters in wines with 9 and 18 mo of aging on lees. The addition of yeast autolyzate achieved greater polysaccharide enrichment and gave rise to sparkling wines with the highest antioxidant activity. Effects on foaming properties were quite different depending on the aging time. Despite this, sparkling wines treated with 10 g/hL of yeast autolyzate and Optimum White generally exhibited the highest foamability and foam stability. Further experiments with higher doses are needed to observe clear effects on sensory profile.

Food Chemistry published new progress about Antioxidants. 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, Computed Properties of 110-42-9.

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

Ignacia Lambert-Royo, Maria published the artcileThe diversity of effects of yeast derivatives during sparkling wine aging, Recommanded Product: Ethyl octanoate, the main research area is Saccharomyces Torulaspora sparkling wine aging; Foaming; Sensory analysis; Sparkling wine; Volatile compounds; Wine aging; Yeast derivatives.

This study shows the monitoring of the phys., chem. and sensorial changes that occur in the sparkling wine along 18 mo of aging due to different typol. yeast-derived products; dry inactivated yeast from Saccharomyces (Saccharomyces cerevisiae) and non-Saccharomyces (Torulaspora delbrueckii) yeast strains, yeast autolyzate, and yeast protein extract tested at two different doses. The addition of 5 g/hL yeast protein extract and inactivated yeast from T. delbrueckii helped to preserve esters in wines with 9 and 18 mo of aging on lees. The addition of yeast autolyzate achieved greater polysaccharide enrichment and gave rise to sparkling wines with the highest antioxidant activity. Effects on foaming properties were quite different depending on the aging time. Despite this, sparkling wines treated with 10 g/hL of yeast autolyzate and Optimum White generally exhibited the highest foamability and foam stability. Further experiments with higher doses are needed to observe clear effects on sensory profile.

Food Chemistry published new progress about Antioxidants. 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

Ignacia Lambert-Royo, Maria published the artcileThe diversity of effects of yeast derivatives during sparkling wine aging, Computed Properties of 123-29-5, the main research area is Saccharomyces Torulaspora sparkling wine aging; Foaming; Sensory analysis; Sparkling wine; Volatile compounds; Wine aging; Yeast derivatives.

This study shows the monitoring of the phys., chem. and sensorial changes that occur in the sparkling wine along 18 mo of aging due to different typol. yeast-derived products; dry inactivated yeast from Saccharomyces (Saccharomyces cerevisiae) and non-Saccharomyces (Torulaspora delbrueckii) yeast strains, yeast autolyzate, and yeast protein extract tested at two different doses. The addition of 5 g/hL yeast protein extract and inactivated yeast from T. delbrueckii helped to preserve esters in wines with 9 and 18 mo of aging on lees. The addition of yeast autolyzate achieved greater polysaccharide enrichment and gave rise to sparkling wines with the highest antioxidant activity. Effects on foaming properties were quite different depending on the aging time. Despite this, sparkling wines treated with 10 g/hL of yeast autolyzate and Optimum White generally exhibited the highest foamability and foam stability. Further experiments with higher doses are needed to observe clear effects on sensory profile.

Food Chemistry published new progress about Antioxidants. 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

Ignacia Lambert-Royo, Maria published the artcileThe diversity of effects of yeast derivatives during sparkling wine aging, Application of Methyl octanoate, the main research area is Saccharomyces Torulaspora sparkling wine aging; Foaming; Sensory analysis; Sparkling wine; Volatile compounds; Wine aging; Yeast derivatives.

This study shows the monitoring of the phys., chem. and sensorial changes that occur in the sparkling wine along 18 mo of aging due to different typol. yeast-derived products; dry inactivated yeast from Saccharomyces (Saccharomyces cerevisiae) and non-Saccharomyces (Torulaspora delbrueckii) yeast strains, yeast autolyzate, and yeast protein extract tested at two different doses. The addition of 5 g/hL yeast protein extract and inactivated yeast from T. delbrueckii helped to preserve esters in wines with 9 and 18 mo of aging on lees. The addition of yeast autolyzate achieved greater polysaccharide enrichment and gave rise to sparkling wines with the highest antioxidant activity. Effects on foaming properties were quite different depending on the aging time. Despite this, sparkling wines treated with 10 g/hL of yeast autolyzate and Optimum White generally exhibited the highest foamability and foam stability. Further experiments with higher doses are needed to observe clear effects on sensory profile.

Food Chemistry published new progress about Antioxidants. 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Application of Methyl octanoate.

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

Qian, Heying published the artcileMetabolic characterization of hemolymph in Bombyx mori varieties after Bombyx mori nucleopolyhedrovirus infection by GC-MS-based metabolite profiling, COA of Formula: C9H18O2, the main research area is BmNPV infection hemolymph oxidative phosphorylation GC MS.

The “”Huakang 2″” silkworm variety, bred by the Sericulture Research Institute of the Chinese Academy of Agricultural Sciences, is highly resistant to Bombyx mori nucleopolyhedrovirus (BmNPV) and effectively solves the issue of frequent Bombyx mori nuclear polyhedrosis in sericultural production The mol. mechanism of its resistance to BmNPV, however, is still unknown. The purpose of the present study was therefore to identify these anti-BmNPV mechanisms by using metabolomics in combination with transcriptomics after s.c. injection of budded virus (BV) with high concentrations of BmNPV from specimens of the Baiyu N variety (which is highly resistant to BmNPV) and the Baiyu variety (which is sensitive to BmNPV). A total of 375 differential metabolites were identified, which mainly included sugars, acids, amines, alcs., glycosides, and other small mols. KEGG enrichment anal. and functional clustering of differential metabolites identified possible metabolic pathways, including tyrosine metabolism, oxidative phosphorylation, and alanine, aspartate, and glutamate metabolism The differentially expressed genes (DEGs) identified by transcriptome anal. were annotated in KEGG. Association anal. showed that the metabolic pathways of different silkworm varieties are affected differently by BmNPV infection, triggering a series of complex physiol. and biochem. changes in the organism. In particular, oxidative phosphorylation might be an essential pathway involved in regulation of disease resistance.

Archives of Virology published new progress about Amines Role: ANT (Analyte), BSU (Biological Study, Unclassified), ANST (Analytical Study), BIOL (Biological Study). 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, COA of Formula: C9H18O2.

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

Qian, Heying published the artcileMetabolic characterization of hemolymph in Bombyx mori varieties after Bombyx mori nucleopolyhedrovirus infection by GC-MS-based metabolite profiling, SDS of cas: 110-42-9, the main research area is BmNPV infection hemolymph oxidative phosphorylation GC MS.

The “”Huakang 2″” silkworm variety, bred by the Sericulture Research Institute of the Chinese Academy of Agricultural Sciences, is highly resistant to Bombyx mori nucleopolyhedrovirus (BmNPV) and effectively solves the issue of frequent Bombyx mori nuclear polyhedrosis in sericultural production The mol. mechanism of its resistance to BmNPV, however, is still unknown. The purpose of the present study was therefore to identify these anti-BmNPV mechanisms by using metabolomics in combination with transcriptomics after s.c. injection of budded virus (BV) with high concentrations of BmNPV from specimens of the Baiyu N variety (which is highly resistant to BmNPV) and the Baiyu variety (which is sensitive to BmNPV). A total of 375 differential metabolites were identified, which mainly included sugars, acids, amines, alcs., glycosides, and other small mols. KEGG enrichment anal. and functional clustering of differential metabolites identified possible metabolic pathways, including tyrosine metabolism, oxidative phosphorylation, and alanine, aspartate, and glutamate metabolism The differentially expressed genes (DEGs) identified by transcriptome anal. were annotated in KEGG. Association anal. showed that the metabolic pathways of different silkworm varieties are affected differently by BmNPV infection, triggering a series of complex physiol. and biochem. changes in the organism. In particular, oxidative phosphorylation might be an essential pathway involved in regulation of disease resistance.

Archives of Virology published new progress about Amines Role: ANT (Analyte), BSU (Biological Study, Unclassified), ANST (Analytical Study), BIOL (Biological Study). 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, SDS of cas: 110-42-9.

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

Lopes, Ana Claudia Alencar published the artcileProduction and characterization of a new distilled beverage from green coffee seed residue, Formula: C11H22O2, the main research area is green coffee seed residue beverage; Coffee byproducts; Coffee spirit; Volatile compounds.

This study evaluated green coffee seed residue (GCSR) as an alternative substrate for producing distilled beverages. Two proportions of GCSR, 10% and 20% (w/v), were fermented and distilled in a copper alembic still. The spirits were characterized by GC-FID, HS-SPME GC-MS, and sensory anal. by trained panelists. Most of the 62 identified volatile compounds were affected by the GCSR concentration Total terpenes, higher alcs., and acetals showed the highest concentrations in the 10% GCSR spirit. Esters, acetates, and aldehydes were most abundant in the 20% GCSR. In the sensory anal., the 10% GCSR spirit was characterized by floral, dairy, and almond aromas, while the 20% GCSR spirit was embodied coffee, vegetable, hazelnut, cooked cabbage, and nut descriptors. The results demonstrate the potential of GCSR as a substrate for producing coffee spirits with chem. and sensory qualities, with the 10% GCSR being the better option for fermentation

Food Chemistry published new progress about Almond. 123-29-5 belongs to class esters-buliding-blocks, name is Ethyl nonanoate, and the molecular formula is C11H22O2, Formula: C11H22O2.

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

Abubaker, Mohamed Aamer published the artcileGas chromatography-mass spectrum and fourier-transform infrared spectroscopy analysis of fixed oil from Sudanese Ziziphus spina Christi fruits pulp, Product Details of C23H46O2, the main research area is Ziziphus spina Christi fixed oil GC MS FTIR analysis.

The study was carried out in reason of investigating the phytochem. constituents that could be present in the Ziziphus spina Christi Sudanese plant, by using two different anal. methods such as the Gas Chromatog.-Mass spectrum (GC-MS) and the Fourier-transform IR spectroscopy (FTIR). The Z. spina Christi Fruit pulp oil was extracted with four solvents methanol, petroleum ether, acetone, and iso-Pr alc., using Soxhlet apparatus, The Gas Chromatog.-Mass Spectrum (GC-MS) was carried out to analyze the methanolic fruit pulp oil extract, the results indicated to the presence of thirty-two phytochem. compounds Ten of them are majors, namely9-Octadecenoic acid compounds, Me ester, (E) – (17.07%), 7-Oxabicyclo[4.1.0]heptane,1-methyl-4-(2-methyloxiranyl)- (16.43%), 9-Octadecenoic acid (Z) -, Me ester (10.6%), Hexadecanoic acid, Me ester (8.78%), Me stearate (6.71%), Docosanoic acid, Me ester (4.22%), cis-13-Eicosenoic acid, Me ester (3.43%)%, Me 18-methylnonadecanoate (2.98%), squalene (2.38%), 9-tricosine, (Z) – (2.4%). While the Fourier-transform IR spectroscopy (FTIR) anal. was carried out for (methanol, petroleum ether, acetone, and iso-Pr alc.) fruit pulp oil extract the result showed the presence of many active functional groups such as alcs., phenols, alkanes, alkenes, carbonyls, and Carboxylic acids and aromatic compounds in the extracts with different peak types and correspondences. The GC-MS and FTIR anal. showed the availability of bioactive compounds in the Ziziphus spina fruits pulp oil extracts, and these ingredients may be responsible for pharmaceutical value and could lead to the discovery a novel drugs.

Progress in Chemical and Biochemical Research published new progress about Aliphatic compounds Role: ANT (Analyte), BSU (Biological Study, Unclassified), ANST (Analytical Study), BIOL (Biological Study). 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, Product Details of C23H46O2.

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

Leng, Peng published the artcileHS-GC-IMS with PCA to analyze volatile flavor compounds of honey peach packaged with different preservation methods during storage, Formula: C10H20O2, the main research area is Amygdalus HSGCIMS PCA storage isoamyl acetate benzaldehyde hexanal nhexanol.

In this study, the flavor fingerprint of post-harvest peach fruits from Amygdalus persica L. Yingshuanghong (YSH) was developed and volatile organic compounds (VOCs) were investigated via headspace-gas chromatog.-ion mobility spectrometry (HS-GC-IMS) combining with principal component anal. (PCA). Results identified 52 signal peaks corresponding to 32 compounds were classify as esters, aldehydes, ketones, and alcs. However, 10 compounds were unknown. Differences in the VOCs of peach fruits packaged with different preservation methods during storage were revealed in topog. plots and fingerprints. Increased storage time increase the YSH’s VOCs content produced due to ripening, especially esters, such as isoamyl acetate, Et octanoate, and Et butyrate. In contrast, the content of aldehydes and alcs. contents decreased, including benzaldehyde, (E)-2-hexenal, 2-methylbutanal, hexanal and n-hexanol. Subsequently, PCA was performed based on the signal intensity of the identified VOCs, and the results clearly showed that these samples would be well distinguished in a relatively independent space. The Y2 group (nano-composition packaging materials) had a good application prospect in the post-harvest preservation of honey peaches. Flavor visual spectrum could be of great potential to predict the maturity of the fruits and evaluate preservation efficiency differences in the future.

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, Formula: C10H20O2.

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