Category: 505-10-2

Diez-Ozaeta, Inaki published the artcileEffect of inoculation strategy with autochthonous Oenococcus oeni strains on aroma development in Rioja Alavesa Tempranillo wines, HPLC of Formula: 505-10-2, the main research area is autochthonous Oenococcus oeni aroma development Rioja Alavesa Tempranillo wine.

The potential use as malolactic starters of four indigenous strains of Oenococcus oeni was evaluated under different inoculation regimes. Among others, the fermentative capacity of strains, their degree of implantation, the main oenol. parameters as well as their ability to modulate the aromatic profile of wines, were analyzed. Main results elucidated that co-inoculation led to the prompt consecution of malolactic fermentation (MLF), highlighting the performance of indigenous Oenococcus oeni P2A strain and com. O. oeni Viniflora OENOS strain which finished the process 20-30 days earlier compared to batches that undergo sequential inoculation. Moreover, inoculation strategy did also have an important influence on the volatile profile of wines. Co-inoculated wines significantly showed less concentration of volatile compounds Main reduction was detected in higher alcs. and acids. Lower concentration of acids and higher alcs. may prevent the masking of desired aroma attributes. Indeed, in co-inoculated wines, the perception of ripe fruit aroma was highlighted over the others, and was extensively perceived by panellists in comparison with their resp. sequentially inoculated wines. Above all, it was elucidated the suitability of the strain P2A, resulting an advantageous alternative to significantly reduce the overall winemaking time as well as to better control the fermentative process.

LWT–Food Science and Technology published new progress about Acidity. 505-10-2 belongs to class alcohols-buliding-blocks, name is 3-(Methylthio)propan-1-ol, and the molecular formula is C4H10OS, HPLC of Formula: 505-10-2.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Gimenez-Banon, Maria Jose published the artcileEffects of Methyl Jasmonate and Nano-Methyl Jasmonate Treatments on Monastrell Wine Volatile Composition, Category: alcohols-buliding-blocks, the main research area is methyl Jasmonate nanoparticle wine 1propanol beta phenylethanol methanol; aroma; elicitor; foliar application; nanoparticles; sensorial analysis.

The application of Me jasmonate (MeJ) as an elicitor to enhance secondary metabolites in grapes and wines has been studied, but there is little information about its use in conjunction with nanotechnol. and no information about its effects on wine volatile compounds This led us to study the impact of nanoparticles doped with MeJ (Nano-MeJ, 1mM MeJ) on the volatile composition of Monastrell wines over three seasons, compared with the application of MeJ in a conventional way (10 mM MeJ). The results showed how both treatments enhanced fruity esters in wines regardless of the vintage year, although the increase was more evident when grapes were less ripe. These treatments also achieved these results in 2019 in the cases of 1-propanol, beta-phenyl-ethanol, and methionol, in 2020 in the cases of hexanol and methionol, and in 2021, but only in the case of hexanol. On the other hand, MeJ treatment also increased the terpene fraction, whereas Nano-MeJ, at the applied concentration, did not increase it in any of the seasons. In summary, although not all families of volatile compounds were increased by Nano-MeJ, the Nano-MeJ treatment generally increased the volatile composition to an extent similar to that obtained with MeJ used in a conventional way, but at a 10 times lower dose. Therefore, the use of nanotechnol. could be a good option for improving the quality of wines from an aromatic point of view, while reducing the necessary dosage of agrochems., in line with more sustainable agricultural practices.

Molecules published new progress about Acidity. 505-10-2 belongs to class alcohols-buliding-blocks, name is 3-(Methylthio)propan-1-ol, and the molecular formula is C4H10OS, Category: alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Liu, Jingjing published the artcileComparison of volatile and non-volatile metabolites in sufu produced with bacillus licheniformis by rapid fermentation, Computed Properties of 505-10-2, the main research area is bacillus rapid fermentation volatile metabolite sufu maturation.

Sufu is a pleasant-tasting, traditional Chinese fermented soybean food that is rich in nutrients. In this study, the changes of volatile and nonvolatile metabolites in sufu fermented by bacillus licheniformis, were investigated. The results indicated that a total of 55 kinds of nonvolatile compounds were detected, including 2 carbohydrates, 4 alcs., 17 amino acids, 18 organic acids, 6 biogenic amines, and 8 other substances. Furthermore, a total of 58 volatile compounds identified were composed of 11 esters, 16 alcs., 10 acids, and 21 miscellaneous compounds Inoculation of bacillus licheniformis enriched the metabolite profile of sufu and improved its functionality and safety of edibility. It was observed that the pure fermented starter resulted in controlled acceleration of sufu maturation.

International Journal of Food Properties published new progress about Acidity. 505-10-2 belongs to class alcohols-buliding-blocks, name is 3-(Methylthio)propan-1-ol, and the molecular formula is C4H10OS, Computed Properties of 505-10-2.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Sen, Kemal published the artcileThe influence of different commercial yeasts on aroma compounds of rose wine produced from cv. Okuezgozue grape, Formula: C4H10OS, the main research area is com yeast Okuezgozue grape rose wine aroma compound.

In this study, the effects of the use of different com. yeasts on the aroma compounds of rose wines produced from Okuezgozue grape grown in Turkey were investigated. For this purpose, three different wines have been produced through spontaneous fermentation and using com. yeasts (NBY17 and Zymaflore X5). The aroma compounds were isolated using the liquid-liquid extraction method. These compounds were identified and quantified using the GC-MS-FID. The total amount of aroma compounds was found 150,749.4μg/L in spontaneous wine, 170,681.6μg/L in wine using NBY17, and 162,623.1μg/L in wine using Zymaflore X5. The most dominant aroma groups in wines were higher alcs. and esters. In general, NBY17 has been found to play an important role in the formation of pleasing aromatic compounds in wine both in terms of aroma formation and sensory properties. This study provided the first data on the formation ability of aroma compounds for NBY17 yeast. Many wineries today use com. yeasts because of their ability to start fermentation directly, convert sugar to alc. greatly, and produce wine with the desired properties, as well as producing small amounts of undesirable byproducts. This study which was performed using Zymaflore X5 and NBY17 among these com. yeasts was focused on the differences in the aroma compounds of rose wines obtained from Okuezgozue grapes. With this study, the first data on the ability of com. wine yeast called NBY17 produced in Turkey to form aroma compounds was provided. The use of com. yeast significantly influenced the amounts of aroma compounds in wines and the com. yeast called NBY17 plays an important role in the formation of pleasing aroma compounds in wine.

Journal of Food Processing and Preservation published new progress about Acidity. 505-10-2 belongs to class alcohols-buliding-blocks, name is 3-(Methylthio)propan-1-ol, and the molecular formula is C4H10OS, Formula: C4H10OS.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Sam, Faisal Eudes published the artcileComparison between Membrane and Thermal Dealcoholization Methods: Their Impact on the Chemical Parameters, Volatile Composition, and Sensory Characteristics of Wines, Category: alcohols-buliding-blocks, the main research area is thermal dealcoholization volatile composition; alcohol-free wine; chemical parameters; dealcoholization; membrane; non-alcoholic wine reverse osmosis; sensory characteristics; vacuum distillation; volatile compounds.

Over the last few years, the dealcoholization of wine has piqued the interest of winemakers and researchers. Phys. dealcoholization methods are increasingly used in the dealcoholization of wines because they can partially or completely reduce the alc. content of wines. This study aimed to compare the chem. parameters, volatile composition and sensory quality of white, rose and red wines dealcoholized by two phys. dealcoholization reverse osmosis (RO) and vacuum distillation (VD) at 0.7% volume/volume ethanol. RO and VD effectively reduced the ethanol concentration in all wines to the required 0.7% volume/volume, but also significantly affected most chem. parameters. The pH, free sulfur dioxide, total sulfur dioxide, and volatile acidity decreased significantly due to dealcoholization by RO and VD, while reducing sugars and total acidity increased significantly. VD resulted in higher color intensity, which was perceptible in dealcoholized rose and red wines, while RO caused notable color differences in dealcoholized white and red wine fractions. RO were richer in esters (more Et esters and isoamyl acetate), higher alcs., organic acids, terpenics and C13-norisoprenoids, and carbonyl compounds, while wines dealcoholized with VD had lower levels of these volatile compounds, which may reflect both the loss of esters into the distillate during evaporation and condensation (in the case of VD) and a shift in the chem. equilibrium responsible for ester formation and hydrolysis after ethanol removal. β-damascenone exhibited the highest OAV in all wines, however, losses equal to 35.54-61.98% in RO dealcoholized fractions and 93.62% to 97.39% in VD dealcoholized fractions were observed compared to the control wines. The predominant aroma series in the original and dealcoholized wines were fruity and floral but were greatly affected by VD. Sensory evaluation and PCA showed that dealcoholization by RO improved the fruity and floral notes (in rose and red wines), color intensity, sweetness, viscosity, and aroma intensity better than dealcoholization by VD, while VD mainly enhanced the color of the dealcoholized wines. Both methods increased the acidity of the resp. dealcoholized wines. Nevertheless, RO dealcoholized wines achieved higher acceptance by the panelists than VD dealcoholized wines. Therefore, RO may be a better method for producing dealcoholized (0.7% volume/volume) wines with minimal impact on aroma and sensory quality.

Membranes (Basel, Switzerland) published new progress about Acidity. 505-10-2 belongs to class alcohols-buliding-blocks, name is 3-(Methylthio)propan-1-ol, and the molecular formula is C4H10OS, Category: alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Pereira, Catarina published the artcileRevealing the yeast modulation potential on amino acid composition and volatile profile of Arinto white wines by a combined chromatographic-based approach, Computed Properties of 505-10-2, the main research area is Yeasts Arinto wine Amino acids Volatile compound aroma; Amino acids; Arinto wine; Volatile compounds; Wine aroma; Yeasts.

The importance of yeasts in aroma production during wine fermentation is a significant concern for obtaining a wine that appraises a broad number of consumers. For wine producers, wine aroma modulation is an essential issue where the yeasts used during the winemaking process represents a feasible way to improve the complexity and enhance wines specific characteristics. During the fermentation process of wines, yeasts convert grapes sugars into alc., carbon dioxide and a large number of secondary metabolites, depending on yeast metabolism, affecting the wine composition, namely its aroma and amino acids (AAs) composition So, the present work aims to study the effect of different Saccharomyces-type yeasts on the AAs composition and volatile profile of Arinto white wines. To pursue this goal, four white wines from Arinto grapes were fermented with three different com. yeasts (Saccharomyces bayanus EC1118, Saccharomyces cerevisiae CY3079, Saccharomyces bayanus QA23) and one Native yeast. Arinto wines AAs composition was quantified by HPLC-DAD, after a derivatization step to obtain the aminoenone derivatives The volatile content of Arinto wines was determined by GC/MS, after an HS-SPME extraction Results showed significant differences among the AAs content and volatile profile in the Arinto wines. The higher AAs content was found in the Arinto wines fermented with the CY3079 yeast (470.74 mg•L-1), and the lowest content of AAs in the Arinto wines fermented with EC1118 yeast (343.06 mg•L-1). Native yeast results in wines with a volatile profile richer in esters compared to the other sample wines. Principal component anal. (PCA) obtained with combined data of AAs and volatile compounds, after normalization, for each Arinto wine samples, shows a clear separation of wines fermented with Native and CY3079 yeasts in relation to QA23 and EC1118 fermented wines . The first and second principal components are responsible for 44.40% and 32.20%, resp., of the system′s variance, which clearly showed a differentiation among wines.

Journal of Chromatography A published new progress about Acidity. 505-10-2 belongs to class alcohols-buliding-blocks, name is 3-(Methylthio)propan-1-ol, and the molecular formula is C4H10OS, Computed Properties of 505-10-2.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Picinelli Lobo, Anna published the artcileAromatic, olfactometric and consumer description of sweet ciders obtained by cryo-extraction, HPLC of Formula: 505-10-2, the main research area is sweet cider cryo extraction; 2-Phenylethyl acetate (PubChem CID:7654); Check-All-That-Apply; Consumers; Decanoic acid (PubChem CID:2969); Ethyl 2-Methylbutyrate (PubChem CID:24020); Ethyl decanoate (PubChem CID:8048); Ethyl octanoate (PubChem CID:7799); Ethyl tetradecanoate (PubChem CID:31283); Ice cider; Isoamyl acetate (PubChem CID:31276); Malus domestica; Octanoic acid (PubChem CID:379); Saccharomyces bayanus.

Nine ciders obtained by cryo-extraction were analyzed for chem., olfactometric and sensory characteristics. Three types of ice apple juices and three autochthonous yeast strains were evaluated. The quant. volatile profile is mainly influenced by the apple juice. Regarding the olfactometric profiles of the ice ciders, 23 odorants not previously found in Spanish still ciders, and described as sweet, spicy, fruity and floral were observed Among these, it is worth mentioning 5 high-b.p. compounds found in an olfactometric zone where heavy, phenolic odours predominate in still ciders. The sensory descriptions obtained by Check-All-That-Apply classified the ice ciders mainly by their sweet taste and smoothness, these attributes being the most influential in the assessment of the overall quality of the ciders. The most highly valued ciders were described as the sweetest, most fruity ones, in agreement with their having the highest values for the ratio between total sugars and total acidity.

Food Chemistry published new progress about Acidity. 505-10-2 belongs to class alcohols-buliding-blocks, name is 3-(Methylthio)propan-1-ol, and the molecular formula is C4H10OS, HPLC of Formula: 505-10-2.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Moreno-Olivares, Juan Daniel published the artcileAromatic characterization of new white wine varieties made from Monastrell grapes grown in South-Eastern Spain, Category: alcohols-buliding-blocks, the main research area is Monastrell grape white wine aromatic characterization South Eastern Spain; HS-SPME-GC-MS, sensorial analysis; aromatic profile; crosses; white wines.

The aromatic profile of a wine is one of the main characteristics appreciated by consumers. Due to climate change, vineyards need to adapt to new conditions, and one of the strategies that might be followed is to develop new white varieties from Monastrell and other cultivars by means of intervarietal crosses, since white varieties are a minority in south-eastern Spain. Such crosses have already been obtained and have been seen to provide quality white wines of high acidity and with a good aromatic composition To confirm this, a quant. anal. was carried out during two vintages (2018 and 2019) in order to study and compare the volatile composition of Verdejo (V) wine with the aromatic composition of several wines made from different crosses between Cabernet Sauvignon (C), Syrah (S), Tempranillo (T), and Verdejo (V) with Monastrell (M), by means of headspace SPME-GC-MS anal. Wine volatile compounds (alcs., volatile acids, Et esters, terpenes, norisoprenoids, and two other compounds belonging to a miscellaneous group) were identified and quantified using a HS-SPME-GS-MS methodol. An addnl. sensory anal. was carried out by a qualified tasting panel in order to characterize the different wines. The results highlighted how the crosses MT103, MC69, and MC180 showed significant differences from and better quality than the Verdejo wine. These crosses produced higher concentrations of several aromatic families analyzed, which was supported by the views of the tasting panel, thus confirming their excellent aromatic potential as cultivars for producing grapes well adapted to this area for making white wines.

Molecules published new progress about Acidity. 505-10-2 belongs to class alcohols-buliding-blocks, name is 3-(Methylthio)propan-1-ol, and the molecular formula is C4H10OS, Category: alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Zhang, Lin published the artcileDynamics of microbial communities, ethyl carbamate, biogenic amines, and major metabolites during fermentation of soy sauce, Formula: C4H10OS, the main research area is pyroglutamic lactic acid ethyl carbamate soy sauce fermentation.

In this study, the dynamics of the microbial communities and metabolites for soy sauce were investigated. The succession of microbiota was divided into three phases in process. Dynamics of physicochem. properties coincided with the succession of dominant genera in the first 3 mo, hereafter changed slightly. The contents of L-malic acid, pyroglutamic acid, and lactic acid were increased by 11.79, 11.39, and 3.19 times (p < 0.05), resp., compared with that in the initial moromi. The contents of volatiles were changed in the later phase significantly, and dominant constituents were pos. correlated with the dominant genera. The Et carbamate (EC) and seven kinds of biogenic amines (BAs) reached the maximum in the third month, then their contents decreased. The EC forming involved in two phases, the metabolic pathway was partly shared with that of putrescine biosynthesis. These results laid an important foundation in reducing the endogenous hazards by bioturbating. Food Science and Technology Research published new progress about Acidity. 505-10-2 belongs to class alcohols-buliding-blocks, name is 3-(Methylthio)propan-1-ol, and the molecular formula is C4H10OS, Formula: C4H10OS.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Pang, Xiao-Na published the artcileInfluence of indigenous lactic acid bacteria on the volatile flavor profile of light-flavor Baijiu, Formula: C4H10OS, the main research area is volatile light flavor baijiu indigenous lactic acid bacteria.

Baijiu (Chinese liquor) is a type of traditional distilled spirit drink produced by spontaneous fermentation Lactic acid bacteria as the predominant bacteria during the fermentation of Baijiu may influence the flavor through the production of enzymes and metabolites. Results showed that there was significant difference in lactic acid bacteria counts between different fermentation periods. Indigenous lactic acid bacteria with high alc. tolerance and esterase activity were selected for fortified fermentation Inoculation with indigenous lactic acid bacteria significantly changed the flavor profile of Baijiu. All the selected strains promoted the formation of Et acetate which is an important flavor in Baijiu. Lactobacillus acetotolerans significantly promoted the formation of Et acetate, Et lactate, ethanol, acetic acid, and 2,4-di-tert-butylphenol. Sensory anal. revealed higher harmony in the samples fermented with L. hilgardii and L. acetotolerans, and higher intensive ester aroma in the samples fermented with L. planturum. The generation of flavors such as esters, alcs. and acids were species or even strain dependent. The results of this work will broaden our knowledge regarding the role of indigenous lactic acid bacteria during Baijiu manufacturing, and provide a potential approach for improving the flavor of Baijiu.

LWT–Food Science and Technology published new progress about Acidity. 505-10-2 belongs to class alcohols-buliding-blocks, name is 3-(Methylthio)propan-1-ol, and the molecular formula is C4H10OS, Formula: C4H10OS.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts