Month: December 2022

Kong, Cai-Lin published the artcileFlavor modification of dry red wine from Chinese spine grape by mixed fermentation with Pichia fermentans and S. cerevisiae, COA of Formula: C11H22O2, the main research area is Pichia Saccharomyces Vitis dry red wine flavor mixed fermentation.

Mixed fermentation of Pichia fermentans and Saccharomyces cerevisiae was designed to circumvent the problem of weak aroma in Chinese spine grape wines. Spine grape, “”Xiang Pearl””, was used for wine production by red wine-making processes. Physicochem. indexes were measured using titratable and spectroscopic methodologies. Volatiles were quantified by SPME-GC-MS, and aroma attributes were analyzed by trained panelists. Results showed mixed fermentation benefited color properties by improving total anthocyanin, polymeric anthocyanin, and total tannin contents. The content of varietal compounds, except those of thiols, were reduced, whereas fermentative compounds contents, especially those of higher alcs., esters, and phenylethyls, were increased by mixed fermentation Sensory anal. showed mixed fermentation enhanced fruity and floral traits in wine; this was confirmed by math. regression showing elevated levels of fermentative volatiles dominated the contribution to pleasant aroma, whereas reduced content of varietal compounds, with the exception of thiols, correlated neg. with favorable characteristics.

LWT–Food Science and Technology published new progress about Anthocyanins Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 110-42-9 belongs to class esters-buliding-blocks, name is Methyl decanoate, and the molecular formula is C11H22O2, COA of Formula: C11H22O2.

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

Kong, Cai-Lin published the artcileFlavor modification of dry red wine from Chinese spine grape by mixed fermentation with Pichia fermentans and S. cerevisiae, Application In Synthesis of 106-32-1, the main research area is Pichia Saccharomyces Vitis dry red wine flavor mixed fermentation.

Mixed fermentation of Pichia fermentans and Saccharomyces cerevisiae was designed to circumvent the problem of weak aroma in Chinese spine grape wines. Spine grape, “”Xiang Pearl””, was used for wine production by red wine-making processes. Physicochem. indexes were measured using titratable and spectroscopic methodologies. Volatiles were quantified by SPME-GC-MS, and aroma attributes were analyzed by trained panelists. Results showed mixed fermentation benefited color properties by improving total anthocyanin, polymeric anthocyanin, and total tannin contents. The content of varietal compounds, except those of thiols, were reduced, whereas fermentative compounds contents, especially those of higher alcs., esters, and phenylethyls, were increased by mixed fermentation Sensory anal. showed mixed fermentation enhanced fruity and floral traits in wine; this was confirmed by math. regression showing elevated levels of fermentative volatiles dominated the contribution to pleasant aroma, whereas reduced content of varietal compounds, with the exception of thiols, correlated neg. with favorable characteristics.

LWT–Food Science and Technology published new progress about Anthocyanins Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 106-32-1 belongs to class esters-buliding-blocks, name is Ethyl octanoate, and the molecular formula is C10H20O2, Application In Synthesis of 106-32-1.

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

Carrizzo, Albino published the artcileHealthberry 865 and Its Related, Specific, Single Anthocyanins Exert a Direct Vascular Action, Modulating Both Endothelial Function and Oxidative Stress, Synthetic Route of 2044-85-1, the main research area is healthberry cardiovascular disease endothelial function oxidative stress; anthocyanins; cardiovascular; endothelium; oxidative stress.

In recent years, epidemiol. studies have identified a relationship between diet and cerebro-cardiovascular disease (CVD). In this regard, there is a promising dietary group for cardiovascular protection are polyphenols, especially anthocyanins. Vascular reactivity studies were performed using Healthberry 865 and constituent single anthocyanins to characterize vasomotor responses; immunofluorescence anal. with dichlorofluorescein diacetate and dihydroethidium were used to evaluate nitric oxide and oxidative stress; lucigenin assay was used to measure NADPH oxidase activity; and gel electrophoresis and immunoblotting were used to dissect the mol. mechanisms involved. We demonstrated that Healthberry 865 exerts an important vasorelaxant effect of resistance artery functions in mice. Its action is mediated by nitric oxide release through the intracellular signaling PI3K/Akt. Moreover, behind its capability of modulating vascular tone, it also exerts an important antioxidant effect though the modulation of the NADPH oxidase enzyme. Interestingly, its cardiovascular properties are mediated by the selective action of different anthocyanins. Finally, the exposure of human dysfunctional vessels to Healthberry 865 significantly reduces oxidative stress and improves NO bioavailability. Although further investigations are needed, our data demonstrate the direct role of Healthberry 865 on the modulation of vasculature, both on the vasorelaxation and on oxidative stress; thus, supporting the concept that a pure mixture of anthocyanins could be helpful in preventing the onset of vascular dysfunction associated with the development of CVD.

Antioxidants published new progress about Anthocyanins Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 2044-85-1 belongs to class esters-buliding-blocks, name is 2′,7′-Dichloro-3-oxo-3H-spiro[isobenzofuran-1,9′-xanthene]-3′,6′-diyl diacetate, and the molecular formula is C24H14Cl2O7, Synthetic Route of 2044-85-1.

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

Fernandes, Luana published the artcileBorage, calendula, cosmos, Johnny Jump up, and pansy flowers: volatiles, bioactive compounds, and sensory perception, Computed Properties of 123-29-5, the main research area is Borage Calendula Cosmos Viola flower volatile bioactive compound.

The aim of the present work was to study the main volatile and bioactive compounds (monomeric anthocyanins, hydrolysable tannins, total flavonoids, and total reducing capacity) of five edible flowers: borage (Borage officinalis), calendula (Calendula arvensis), cosmos (Cosmos bipinnatus), Johnny Jump up (Viola tricolor), and pansies (Viola × wittrockiana), together with their sensory attributes. The sensory anal. (10 panelists) indicated different floral, fruity, and herbal odors and taste. From a total of 117 volatile compounds (SPME-GC-MS), esters were most abundant in borage, sesquiterpenes in calendula, and terpenes in cosmos, Johnny Jump up, and pansies. Some bioactive and volatile compounds influence the sensory perception. For example, the highest content of total monomeric anthocyanins (cosmos and pansies) was associated with the highest scores of colors intensity, while the floral and green fragrances detected in borage may be due to the presence of Et octanoate and 1-hexanol. Therefore, the presence of some volatiles and bioactive compounds affects the sensory perception of the flowers.

European Food Research and Technology published new progress about Anthocyanins Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 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

Ferrero-del-Teso, Sara published the artcileEffect of grape maturity on wine sensory and chemical features: The case of Moristel wines, Name: Ethyl octanoate, the main research area is Moristel wine grape sensory maturity chem feature.

Among the different grape factors involved in wine quality, the present work is focused on evaluating the effect of grape maturity on wine flavor and how these sensory effects are related to wine chem. composition Moristel grapes were collected from two vine blocks, with a priori maximum variability in terms of grape quality, at three and four different points of maturation. Wines were elaborated in triplicate yielding 21 wine samples. Sensory characterization of samples was carried out by a trained panel following the rate-all-that-apply method. Volatiles and non-volatiles with known sensory impact were quantified. Grape maturity generated significant sensory effects on wine astringency and fruity aromas including “”raisin””, “”black fruit”” and “”red fruit””. Interestingly, a significant effect on “”oxidation”” nuances revealed a general pattern in the appearance of higher oxidation aromas in wines elaborated with grapes prematurely harvested. This attribute was related to concentrations of free acetaldehyde, methional, phenylacetaldehyde and isoaldehydes, and aldehyde reactive polyphenols. The presence of “”raisin”” aroma was linked to β-damascenone, which was suggested to be formed during the on-vine dehydration process. “”Astringency”” was related to ethanol content, tannin activity (measured as the interaction of tannins with a hydrophobic surface), and the content in anthocyanin derived compounds

LWT–Food Science and Technology published new progress about Anthocyanins Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 106-32-1 belongs to class esters-buliding-blocks, name is Ethyl octanoate, and the molecular formula is C10H20O2, Name: Ethyl octanoate.

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

Jia, Haoran published the artcileDNA and Histone Methylation Regulates Different Types of Fruit Ripening by Transcriptome and Proteome Analyses, Recommanded Product: Methyl octanoate, the main research area is DNA methylation histone fruit ripening carotenoid Solanum Fragaria; anthocyanin gene expression transcriptome proteome; DNA methylation; fruit ripening; gene expression; histone modification; proteomics; regulatory factors.

Methylation affects different aspects of genetic material stability, gene expression regulation, and histone modification. The previous reports depicted that DNA and histone methylation regulates plant growth and development. In this study, we evaluated the effects of DNA and histone methylation on ‘Hongjia’ strawberry and ‘Lichun’ tomato. We investigated the transient transformation system for arginine methyltransferase (FvPRMT1.5) overexpression and interference and assessed the phenotypic appearance and mRNA and protein expression levels. Results depicted that changes in methylation levels caused inhibition of carotenoids and anthocyanins. Furthermore, the profiling of aroma components was altered in response to 5-azacytidine. DNA hypomethylation induced the expression levels of genes involved in photosynthesis, flavonoid biosynthesis, and hormone signal transduction pathways, while the expression levels of related proteins showed a downward trend. Overall, we proposed a model that reveals the possible regulatory effects of DNA and histone methylation during fruit ripening. The sequencing data have been deposited into the NCBI database with the accession number PRJNA795343.

Journal of Agricultural and Food Chemistry published new progress about Anthocyanins Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Recommanded Product: Methyl octanoate.

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

Noguera-Artiaga, Luis published the artcileFunctional and sensory properties of pistachio nuts as affected by cultivar, Computed Properties of 140-11-4, the main research area is Pistacia functional sensory property phenolics antioxidant; GC-MS; LC-PDA-MS-QTof; Pistacia vera L. cultivars; antioxidant activity; phenolic compounds.

This study was to compare eight pistachio cultivars by analyzing key functional properties (phenolic compounds, polymeric procyanidins, antioxidant activity, and inhibition of α-amylase and β-glucosidase), aromatic compounds with gas chromatog.-mass spectrometry (GC-MS), and by examining their sensory properties with a trained panel. A combination of LC-PDA-MS-QTof (liquid chromatog. photodiode array quadrupole time-off flight mass spectrometry) and electrospray ionization was used to determine two phenolic acids, nine flavonols, one anthocyanin, and three flavan-3-ols in pistachio cultivars, with a total concentration ranging from 500 to 6065 mg 100 g-1 dry weight (dw). The total polymeric procyanidins concentrations oscillated between 348 and 5919 mg 100 g-1 dw, (-)-epicatechin being the major monomer contributor. Pinene was the most abundant volatile compound (∼200 mg kg-1 dw), and, in the sensory anal. of samples, 23 sensory attributes were found to differ significantly among the cultivars. The cultivar ‘Larnaka’ stood out as having the best functional profile (high polyphenolic content, high antioxidant activity, and high values of α-amylase and β-glucosidase inhibition), and the cultivars ‘Kastel’ and ‘Kerman’ showed the most attractive sensory properties, mainly the most intense flavor.

Journal of the Science of Food and Agriculture published new progress about Anthocyanins Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, Computed Properties of 140-11-4.

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

Wijekoon, Champa published the artcilePotential Associations among Bioactive Molecules, Antioxidant Activity and Resveratrol Production in Vitis vinifera Fruits of North America, Recommanded Product: Methyl docosanoate, the main research area is resveratrol Vitis vinifer bioactive mol antioxidant activity North America; antioxidant activity; bioactive molecules; grapes; resveratrol; stilbene synthase.

Grapes (Vitis vinifera L.) are rich in bioactive mols. contributing to health benefits. Consumption of grapes is linked to reduced incidence of cardiovascular diseases. Studies on table grape cultivars are limited although much attention in research was focused on the wine industry. Bioactive effects of grapes as anti-inflammatory, anticarcinogenic, cardioprotective, vasorelaxant, phytoestrogenic and neuroprotective have also been reported. For example, resveratrol is a natural food ingredient present in grapes, with high antioxidant potential. Here we conducted an exploratory study to investigate bioactive mols., antioxidant activity and the association between constitutive stilbene synthase (STS) gene expression and the resveratrol biosynthesis in selected table grape varieties in North America. The phenolic compounds, fatty acid composition and antioxidant activity of four grape varieties were compared. Red Globe variety was rich in unsaturated fatty acids as well as phenolic compounds such as caffeic acid, quercetin and resveratrol. Meanwhile, the constitutive expression of grape stilbene synthase gene was higher in Flame and Autumn Royal where resveratrol content of these cultivars was relatively low compared to the Red Globe variety. This study shows the potential links in grape antioxidant activity and resveratrol production, but more studies are necessary to show the association

Molecules published new progress about Anthocyanins Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, Recommanded Product: Methyl docosanoate.

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

El Cadi, Hafssa published the artcileElucidation of antioxidant compounds in moroccan Chamaerops humilis L. fruits by GC-MS and HPLC-MS techniques, Recommanded Product: Ethyl pentadecanoate, the main research area is Chamaerops humilis ethyl acetate methanol water antioxidant compound; Arecaceae; antioxidant activity; liquid chromatography; polyphenols; volatile content.

The aim of this study was to characterize the phytochem. content as well as the antioxidant ability of the Moroccan species Chamaerops humilis L. Besides crude ethanolic extract, two extracts obtained by sonication using two solvents with increased polarity, namely Et acetate (EtOAc) and methanol-water (MeOH-H2O) 80:20 (volume/volume), were investigated by both spectroscopy and chromatog. methods. Between the two extracts, the MeOH-H2O one showed the highest total polyphenolic content equal to 32.7 ± 0.1 mg GAE/g DM with respect to the EtOAc extract (3.6 ± 0.5 mg GAE/g DM). Concerning the antioxidant activity of the two extracts, the EtOAc one yielded the highest value (1.9 ± 0.1 mg/mL) with respect to MeOH-H2O (0.4 ± 0.1 mg/mL). The C. humilis n-hexane fraction, analyzed by GC-MS, exhibited 69 compounds belonging to different chem. classes, with n-Hexadecanoic acid as a major compound (21.75%), whereas the polyphenolic profile, elucidated by HPLC-PDA/MS, led to the identification of a total of sixteen and thirteen different compounds in both EtOAc (major component: ferulic acid: 104.7 ± 2.52μg/g) and MeOH-H2O extracts (major component: chlorogenic acid: 45.4 ± 1.59μg/g), resp. The attained results clearly highlight the potential of C. humilis as an important source of bioactive components, making it a valuable candidate to be advantageously added to the daily diet. Furthermore, this study provides the scientific basis for the exploitation of the Doum in the food, pharmaceutical and nutraceutical industries.

Molecules published new progress about Anthocyanins Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 41114-00-5 belongs to class esters-buliding-blocks, name is Ethyl pentadecanoate, and the molecular formula is C17H34O2, Recommanded Product: Ethyl pentadecanoate.

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

Shao, Zhihui published the artcileGeneral and Phosphine-Free Cobalt-Catalyzed Hydrogenation of Esters to Alcohols, SDS of cas: 140-11-4, the main research area is ester cobalt catalyst hydrogenation; lactone cobalt catalyst hydrogenation; alc preparation.

The first non-noble metal catalytic system that enabled an efficient hydrogenation of non-activated esters to alcs. in the absence of phosphine ligands (with a maximum turnover number of 2391) was described. The general applicability of this protocol was demonstrated by the high-yielding hydrogenation of 39 ester substrates including aromatic/aliphatic esters, lactones, polyesters and various pharmaceutical mols.

Chinese Journal of Chemistry published new progress about Alcohols Role: PRP (Properties), SPN (Synthetic Preparation), PREP (Preparation). 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, SDS of cas: 140-11-4.

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