Hypotheses on the effects of enological tannins and total red wine phenolic compounds on Oenococcus oeni

2015 ◽  
Vol 52 ◽  
pp. 131-137 ◽  
Author(s):  
Laura Chasseriaud ◽  
Sibylle Krieger-Weber ◽  
Magali Déléris-Bou ◽  
Nathalie Sieczkowski ◽  
Michael Jourdes ◽  
...  
Fermentation ◽  
2020 ◽  
Vol 6 (1) ◽  
pp. 15
Author(s):  
Shao-Yang Wang ◽  
Hai-Zhen Zhu ◽  
Yi-Bin Lan ◽  
Ruo-Jin Liu ◽  
Ya-Ran Liu ◽  
...  

Malolactic fermentation is a vital red wine-making process to enhance the sensory quality. The objective of this study is to elucidate the starter cultures’ role in modifying phenolic compounds, biogenic amines, and volatile compounds after red wine malolactic fermentation. We initiated the malolactic fermentation in Cabernet Gernishct wine by using two Oenococcus oeni and two Lactobacillus plantarum strains. Results showed that after malolactic fermentation, wines experienced a content decrease of total flavanols and total flavonols, accompanied by the accumulation of phenolic acids. The Lactobacillus plantarum strains, compared to Oenococcus oeni, exhibited a prevention against the accumulation of biogenic amines. The malolactic fermentation increased the total esters and modified the aromatic features compared to the unfermented wine. The Lactobacillus plantarum strains retained more aromas than the Oenococcus oeni strains did. Principal component analysis revealed that different strains could distinctly alter the wine characteristics being investigated in this study. These indicated that Lactobacillus plantarum could serve as a better alternative starter for conducting red wine malolactic fermentation.


2002 ◽  
Vol 132 (6) ◽  
pp. 1207-1213 ◽  
Author(s):  
Cyril Auger ◽  
Bertrand Caporiccio ◽  
Nicolas Landrault ◽  
Pierre Louis Teissedre ◽  
Caroline Laurent ◽  
...  

2020 ◽  
Author(s):  
Mariia Nagalievska ◽  
Mariya Sabadashka ◽  
Nataliia Sybirna

Phytochemicals derived from different plants are promising therapeutic agents. Herbal compounds can be used under diseases, etiological causes of which are alterations of carbohydrate, protein, and lipid metabolisms, along with increased oxidative stress and chronic low-grade inflammation. Potential sources of biologically active substances may be grape wine, rich in phenolic compounds. Well-studied examples of polyphenols are phenolic acids, catechins, anthocyanins, and flavonoids, etc. Another source of biologically active compounds is yacon (Smallanthus sonchifolius Poepp. & Endl.). The aboveground part of yacon is rich in phenolic compounds and terpenes. Main biologically active substances from tuberous roots of yacon are fructooligosaccharides and phenolic compounds. The section will be devoted to the analysis of hypoglycemic and antioxidant effects, and molecular targets of the complex of biologically active substances derived from red wine and yacon.


Viruses ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 1316
Author(s):  
Cécile Philippe ◽  
Amel Chaïb ◽  
Fety Jaomanjaka ◽  
Stéphanie Cluzet ◽  
Aurélie Lagarde ◽  
...  

To provide insights into phage-host interactions during winemaking, we assessed whether phenolic compounds modulate the phage predation of Oenococcus oeni. Centrifugal partition chromatography was used to fractionate the phenolic compounds of a model red wine. The ability of lytic oenophage OE33PA to kill its host was reduced in the presence of two collected fractions in which we identified five compounds. Three, namely, quercetin, myricetin and p-coumaric acid, significantly reduced the phage predation of O. oeni when provided as individual pure molecules, as also did other structurally related compounds such as cinnamic acid. Their presence was correlated with a reduced adsorption rate of phage OE33PA on its host. Strikingly, none of the identified compounds affected the killing activity of the distantly related lytic phage Vinitor162. OE33PA and Vinitor162 were shown to exhibit different entry mechanisms to penetrate into bacterial cells. We propose that ligand-receptor interactions that mediate phage adsorption to the cell surface are diverse in O. oeni and are subject to differential interference by phenolic compounds. Their presence did not induce any modifications in the cell surface as visualized by TEM. Interestingly, docking analyses suggest that quercetin and cinnamic acid may interact with the tail of OE33PA and compete with host recognition.


2013 ◽  
Vol 20 (6) ◽  
pp. 421-429 ◽  
Author(s):  
Maria Amparo Tárrega ◽  
Paula Varela ◽  
Emilie Fromentin ◽  
Nicolas Feuillère ◽  
Nicolas Issaly ◽  
...  

2012 ◽  
Vol 6 (12) ◽  
pp. 3585-3595 ◽  
Author(s):  
Mara V. Galmarini ◽  
Chantal Maury ◽  
Emira Mehinagic ◽  
Virginia Sanchez ◽  
Rosa I. Baeza ◽  
...  

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