scholarly journals Flavor Chemical Profiles of Cabernet Sauvignon Wines: Six Vintages from 2013 to 2018 from the Eastern Foothills of the Ningxia Helan Mountains in China

Foods ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 22
Author(s):  
Xue Zhang ◽  
Keqing Wang ◽  
Xiaobo Gu ◽  
Xiaohan Sun ◽  
Gang Jin ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Cabernet Sauvignon ◽  
Red Wines ◽  
Grape Cultivar ◽  
Helan Mountains ◽  
Phenolic Profiles ◽  
Chemical Profiles ◽  
Volatile Profiles ◽  
Chinese Wine ◽  
High Ethanol

The eastern foothills of the Helan Mountains in the Ningxia region (Ningxia), is a Chinese wine-producing region, where Cabernet Sauvignon is the main grape cultivar; however, little compositional or flavor information has been reported on Ningxia wines. Oenological parameters, volatile profiles, and phenolic profiles were determined for 98 Ningxia Cabernet Sauvignon wines from the 2013–2018 vintages, as well as 16 from Bordeaux and California, for comparison. Ningxia wines were characterized by high ethanol, low acidity, and high anthocyanin contents. Multivariate analysis revealed that citronellol and 12 characteristic phenolic compounds distinguish Ningxia wines from Bordeaux and California wines. The concentrations of most phenolic compounds were highest in the 2018 Ningxia vintage and decreased with the age of the vintage. To our knowledge, this is the first extensive regionality study on red wines from the Ningxia region.

scholarly journals Effect of grape yield and maceration time on phenolic composition of ‘Fetească neagră’ organic wine

2021 ◽  
Vol 49 (2) ◽  
pp. 12345
Author(s):  
Victoria ARTEM ◽  
Arina O. ANTOCE ◽  
Elisabeta I. GEANA ◽  
Aurora RANCA
Keyword(s):  
Phenolic Compounds ◽  
Yield Reduction ◽  
Phenolic Composition ◽  
Red Wines ◽  
Technological Interventions ◽  
Phenolic Profiles ◽  
Organic Wine ◽  
Derivatives Of ◽  
Grape Yield

The phenolic composition of wine is mostly determined by the accumulation of the phenolic compounds in the grapes, as well as their extraction into wine. To increase their concentration in grapes, yield reduction is usually performed by pruning, while to increase the extraction in wines, the maceration on skins is extended for longer periods of time. The present study focuses on the possibilities to apply both strategies to improve the polyphenol composition of organic red wines of Romanian variety ‘Fetească neagră’, which stands to benefit more from technological interventions than other varieties, which naturally accumulate higher phenol concentrations in the grapes. In the vineyard three experimental pruning variants were made, with 20, 28 and 36 buds/vine, while for wine, maceration was performed for either 8 or 16 days for each grape variant. The phenolic profiles of wines were determined by HPLC methods. The main anthocyanidins, such as malvidin, petunidin, delphinidin, peonidin and cyanidin, as well as the acylated and coumaroylated derivatives of malvidin and peonidin were quantitatively determined. Some other phenolic compounds, of various classes, such as gallic, p-benzoic, p-coumaric and ferulic acid, catechin, epicatechin, myricetin, quercetin and trans-resveratrol were also determined. The quality of the organic ‘Fetească neagră’ wines depended highly on the vintage, but yield reduction and the extension of skin maceration duration were especially beneficial in the less favourable year, when classical technologies lead to less accumulation of sugars, colour and other polyphenols. Concomitant application of both strategies led to the best results, irrespective of the year.

scholarly journals Effects of Long-Term Bottle Storage on Red and Rosé Wines Sealed with Different Types of Closures

Foods ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 2918
Author(s):  
Prudence Fleur Tchouakeu Betnga ◽  
Edoardo Longo ◽  
Vakarė Merkytė ◽  
Amanda Dupas de Matos ◽  
Fabrizio Rossetti ◽  
...  
Keyword(s):  
Syringic Acid ◽  
Anthocyanin Content ◽  
Red Wines ◽  
Significant Difference ◽  
Ethyl Octanoate ◽  
Chemical Profiles ◽  
Volatile Profiles ◽  
Natural Cork ◽  
Rosé Wine

Volatile and non-volatile chemical profiles, free and total SO2 and dissolved oxygen content were studied in three red (Merlot, Lagrein red, St. Magdalener) and one rosé (Lagrein rosé) wine after 30 months of storage in bottles. Each wine was sealed with closures made of a ‘blend’ (B) of natural cork microgranules and polymers without glue and was compared with wines closed with other types of corks (C; a technical cork 1 + 1, or an agglomerated natural cork or a natural one-piece cork). Glutathionyl caftaric acid (GRP) was inversely correlated with total SO2 content and was higher in all three red wines closed with B compared to C, whereas epicatechin was higher in three wines closed with C compared to B. Three volatile compounds formed by fermentation (ethyl butanoate, isoamyl lactate, and octanol) were inversely correlated with both free and total SO2. In terms of their volatile profiles, ethyl octanoate and 2,3-butanediol were significantly higher in the Lagrein red wines closed with C closures, whereas no significant difference was observed in Merlot, Lagrein rosé and St. Magdalener wines. Small differences in some phenolic compounds due to the type of closure were found: GRP, syringic acid, (+)-catechin, and (−)-epicatechin differentiated the Merlot wines closed with B from the C closures. Protocatechuic acid and GRP levels differentiated the Lagrein red wines according to their closure type, whereas only (−)-epicatechin differentiated the Lagrein rosé wines. GRP, caffeic acid, (−)-epicatechin, and anthocyanin content differentiated the St. Magdalener wines according to their closure type. Even though St. Magdalener and Lagrein rosé closed with C could be distinguished from those closed with B by using the (sensory) triangle test (α = 0.05), these differences appeared to be relative as it did not include all the wines in a systematic manner.

scholarly journals Effect of fermentation conditions on content of phenolic compounds in red wine

2005 ◽  
pp. 61-70 ◽  
Author(s):  
Vladimir Puskas ◽  
Vladimir Kovac ◽  
Jelena Dodic ◽  
Sinisa Dodic
Keyword(s):  
Phenolic Compounds ◽  
Protective Effect ◽  
Cardiovascular System ◽  
Significant Influence ◽  
Nutritive Value ◽  
Red Wine ◽  
Cabernet Sauvignon ◽  
Total Phenols ◽  
Red Wines ◽  
Fermentation Conditions

The evidence of compounds that increase the nutritive value of red wines has been presented in a number of papers. These compounds include catechins and proanthocyanidins among others. Their protective effect on the cardiovascular system and anticarcinogenic properties has been proved. The effect of maceration conditions and increased solid grape parts content, seed in the first place, on the content of phenolic compounds of wine was investigated. Several micro-trials were performed with Cabernet sauvignon sort; in some variants time and temperature of maceration were varied, while the ratio of residual stem and content of seed was increased several times, resulting in a significant change of phenolic compounds content in the obtained wine samples. The presence of ripe stem yielded good results, but only during six days of maceration, while in the case of longer maceration, the change of colour quality was negative. Supplementary quantities of seeds during maceration resulted in an increase of total phenols and catechins. A significant influence on colour of wines was also observed, especially in wines obtained applying shorter maceration.

HPLC ANALYSIS OF PHENOLS OF SLOVENIAN RED WINES: CABERNET SAUVIGNON AND MERLOT

2021 ◽  
Author(s):  
Sabina Šaćirović ◽  
◽  
Andrija Ćirić ◽  
Mališa Antić ◽  
Zoran Marković ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Antioxidative Activity ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Rapid Analysis ◽  
Cabernet Sauvignon ◽  
Red Wines ◽  
Hydroxybenzoic Acids ◽  
Antioxidant Concentration ◽  
Derivatives Of

In this study, HPLC-DAD rapid analysis of phenols in wine samples was performed. The recording was performed at different wavelengths: phenolic acid (254nm), flavan-3-ols and stilbene (280nm), flavonoids (340nm) and anthocyanins (520nm). In selected wines, the concentrations of the following compounds were determined and expressed in mg/l of wine. The isolated derivatives were: hydroxybenzoic acids, derivatives of caffeic, ferulic, syringic, and vanillic acids, catechin (flavanol), rutin, myricetin and quercetin (flavonols), and the stilbene derivative-resveratrol. The properties and quantities of phenolic compounds in organic wines were investigated. The results show the content of phenolic compounds in organic wines do not differ qualitatively and quantitatively from those in conventional wines. Wine samples have shown good antioxidative activity according to both DPPH and FRAP analysis, which indicates the good antioxidative potential and high antioxidant concentration in tested wines. Cabernet Sauvignon wines have shown better radical scavenging activity than Merlot, especially when the DPPH test was considered.

Effects of Saccharomyces Cerevisiae Strains on Chemical Profiles of Cabernet Sauvignon Wines: Based on the Combined Results of 1H NMR, HS-SPME/GC-MS and HPLC-DAD-ESI-MS/MS

2018 ◽  
Vol 18 (2) ◽  
pp. 115-131
Author(s):  
Liang Heng-Yu ◽  
Su Ning ◽  
Guo Kun ◽  
Wang Yuan ◽  
Yang De-Yu
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Principal Component ◽  
Grape Juice ◽  
Pilot Scale ◽  
Ethyl Esters ◽  
Cabernet Sauvignon ◽  
Esi Ms ◽  
H Nmr ◽  
Chemical Profiles ◽  
Indigenous Yeasts

Five Saccharomyces cerevisiae strains (Chinese indigenous yeasts SC5, WC5, SC8, CC17 and commercial starter F15) were inoculated into Cabernet sauvignon grape must and fermented at pilot scale. For the first time, combination of 1H NMR, HS-SPME/GC-MS and HPLC-DAD-ESI-MS/MS metabonomic profiling techniques was performed to analyze the global chemical fingerprints of sampled wines at the end of alcoholic and malolactic fermentation respectively, then 13 non-volatile flavor compounds, 52 volatile organic aromas and 43 polyphenolic molecules were identified and determined correspondently. All principal component analysis (PCA) of two fermentation stages based on the analytical results of 1H NMR, HS-SPME/GC-MS and HPLC-DAD-ESI-MS/MS divided these strains into three clusters: (1) SC5 and SC8, (2) WC5 and F15 and (3) CC17. The wine fermented by indigenous yeast, CC17, showed a very unique chemical profile, such as low pH and high color intensity, reduced amino acids (including proline) and the lowest total higher alcohols levels, most of the fixed acids, glycerol, ethyl esters and anthocyanins concentrations. The statistical results indicate that CC17 strain possesses very special anabolism and catabolism abilities on such substances in grape juice and has potentiality to produce characteristic wines with high qualities.

scholarly journals β-Glucosidase Activity of Lactiplantibacillus plantarum UNQLp 11 in Different Malolactic Fermentations Conditions: Effect of pH and Ethanol Content

Fermentation ◽  
2021 ◽  
Vol 7 (1) ◽  
pp. 22
Author(s):  
Natalia S. Brizuela ◽  
Marina Arnez-Arancibia ◽  
Liliana Semorile ◽  
María Ángeles Pozo-Bayón ◽  
Bárbara M. Bravo-Ferrada ◽  
...  
Keyword(s):  
Pinot Noir ◽  
Gas Chromatography Mass Spectrometry ◽  
Red Wines ◽  
Ph Values ◽  
Glucosidase Activity ◽  
Sorptive Extraction ◽  
Ethanol Content ◽  
Volatile Precursors ◽  
Hydrolysis Of ◽  
High Ethanol

Lactiplantibacillus plantarum strain UNQLp 11 is a lactic acid bacterium with the potential to carry out malolactic fermentation (MLF) in red wines. Recently, the complete genome of UNQLp 11 was sequenced and this strain possesses four loci of the enzyme β-glucosidase. In order to demonstrate that these glucosidase enzymes could be functional under harsh wine conditions, we evaluated the hydrolysis of p-nitrophenyl-β-D-glucopyranoside (p-NPG) in synthetic wine with different ethanol contents (0%, 12%, and 14% v/v) and at different pH values (3.2, 3.5, and 3.8). Then, the hydrolysis of precursor n-octyl β-D-glucopyranoside was analyzed in sterile Pinot Noir wine (containing 14.5% v/v of ethanol, at different pH values) by headspace sorptive extraction gas chromatography-mass spectrometry (HSSE-GC/MS). The hydrolysis of p-NPG showed that β-glucosidase activity is very susceptible to low pH but induced in the presence of high ethanol content. Furthermore, UNQLp 11 was able to release the glycosilated precursor n-octyl, during MLF to a greater extent than a commercial enzyme. In conclusion, UNQLp 11 could improve the aromatic profile of the wine by the release of volatile precursors during MLF.

Influence of iprovalicarb, mepanipyrim and tetraconazole fungicides on anthocyanins and color the Cabernet Sauvignon red wines

2021 ◽  
Vol 247 (4) ◽  
pp. 947-960
Author(s):  
Noelia Briz-Cid ◽  
Jose Oliva ◽  
Raquel Rial-Otero ◽  
Jesus Simal-Gandara ◽  
Miguel A. Cámara
Keyword(s):  
Cabernet Sauvignon ◽  
Red Wines

Effects of spontaneous fermentation on Karalahna and Cabernet Sauvignon young red wines: volatile compounds, sensory profiles and identification of autochthonous yeasts

2019 ◽  
Vol 246 (1) ◽  
pp. 81-92 ◽  
Author(s):  
Nesrin Merve Çelebi Uzkuç ◽  
Burcu Şişli ◽  
Mustafa Ay ◽  
Sine Özmen Togay ◽  
Yonca Karagül Yüceer ◽  
...  
Keyword(s):  
Volatile Compounds ◽  
Cabernet Sauvignon ◽  
Red Wines ◽  
Spontaneous Fermentation ◽  
Sensory Profiles

scholarly journals Foliar phenolic compounds of ten wild species of Verbenacea as antioxidants and specific chemomarkers

2017 ◽  
Vol 78 (1) ◽  
pp. 98-107 ◽  
Author(s):  
J. A. Ávila-Reyes ◽  
N. Almaraz-Abarca ◽  
A. I. Chaidez-Ayala ◽  
D. Ramírez-Noya ◽  
E. A. Delgado-Alvarado ◽  
...  
Keyword(s):  
Quality Control ◽  
Phenolic Compounds ◽  
Wild Species ◽  
Antioxidant Properties ◽  
Dependent Manner ◽  
Botanical Origin ◽  
Herbal Preparations ◽  
Quality Control Tool ◽  
The Family ◽  
Phenolic Profiles

Abstract The family Verbenaceae hosts important species used in traditional medicine of many countries. The taxonomic controversies concerning the specific delimitation of several of its species make it difficult to guarantee the botanical origin of herbal preparations based on species of this family. To contribute to the development of both specific chemomarkers and a quality control tool to authenticate the botanical origin of herbal preparations of Verbenacea species, we determined the foliar HPLC-DAD phenolic profiles and the antioxidant properties of 10 wild species of this family occurring in Mexico. The contents of phenols and flavonoids varied significantly among species. Priva mexicana showed the highest levels of total phenolics (53.4 mg g-1 dry tissue) and Verbena carolina had the highest levels of flavonoids (17.89 mg g-1 dry tissue). Relevant antioxidant properties revealed by antiradical and reducing power were found for the analyzed species. These properties varied significantly in a species-dependent manner. The phenolic compounds accumulated were flavones and phenolic acids. Flavones were the only type of flavonoids found. The results of a cluster analysis showed that the compounds were accumulated in species-specific profiles. The phenolic profiles are proposed as valuable chemomarkers that can become a useful tool for the quality control concerning the botanical origin of herbal medicinal preparations based on the species analyzed. In addition, phenolic profiles could contribute importantly to solve the taxonomic controversies concerning species delimitation in the family Verbenaceae.

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