scholarly journals Air Depleted and Solvent Impregnated Cork Powder as a New Natural and Sustainable Wine Fining Agent

Author(s):  
Luís Filipe da Mota Ribeiro ◽  
Maria Fernanda Gil Cosme Martins ◽  
Fernando Hermínio Ferreira Milheiro Nunes
Keyword(s):  

2012 ◽  
Vol 52 (3) ◽  
pp. 406-410 ◽  
Author(s):  
Sandeep Patil ◽  
Mandeep Kaur ◽  
H. K. Sharma


Molecules ◽  
2019 ◽  
Vol 24 (13) ◽  
pp. 2423 ◽  
Author(s):  
Gil-Muñoz ◽  
Jiménez-Martínez ◽  
Bautista-Ortín ◽  
Gómez-Plaza

(1) Background: The lack of viable alternatives for the industrial exploitation of grape pomace is one of the reasons why it is considered a serious environmental pollutant. However, as a byproduct, it could be used as a fining agent, since previous studies have shown that it is able to eliminate undesirable substances in wine. However, the little information available does not describe its effect on wine aroma. (2) Methods: Purified grape pomace extracts were used for fining a red wine and their effect on the volatile compounds of the wine was assessed, comparing the results with those obtained with different commercial fining agents. (3) Results: The results showed how purified grape pomace decreased the total volatile content of a wine to a similar extent as other fining products, such as yeast extracts or gelatin. Among the different families of volatile compounds analyzed, only total esters and terpenes differed from the levels recorded for a control wine, being slightly lower. No statistical differences were found for the rest of the volatile compounds (alcohols, carbonyl, lactones, and acids) compared with the levels measured in control wine. (4) Conclusions: The results suggest that purified grape pomace could be used as a non-allergenic wine fining agent.



OENO One ◽  
2011 ◽  
Vol 45 (1) ◽  
pp. 47 ◽  
Author(s):  
Asimenia Karamanidou ◽  
Stamatina Kallithraka ◽  
Efimia Hatzidimitriou

<p style="text-align: justify;"><strong>Aim</strong>: The aim of the present study was to examine the influence of protein fining on selected quality parameters of wines made from indigenous Hellenic red grape varieties.</p><p style="text-align: justify;"><strong>Methods and Results</strong>: Three different commercial hydrolyzed gelatins and egg albumin were added to two young red wines at three concentrations commonly used in winemaking. The cultivars selected were Hellenic native <em>V. vinifera</em> species used for the production of high quality Appellation of Origin wines (Agiorgitiko and Xinomavro). All the quality parameters studied (anthocyanin concentration, color intensity and hue, ionization degree, total phenolic content, DPPH radical scavenging activity, tannin and polysaccharide concentration, gelatin and HCl indexes, as well as individual phenolic content) were significantly decreased after the addition of the fining agents. The decrease observed was mainly dependent on grape variety, which genetically determines the wine’s phenolic composition, and to a lesser extent on the fining agent used and the dosage applied. In general, treated wines obtained better scores in sensory analysis as compared to untreated ones, although statistically significant differences were only obtained in the Agiorgitiko wine regarding color intensity and hue, acidity, balance, aftertaste, and overall impression.</p><p style="text-align: justify;"><strong>Conclusion</strong>: Wine quality parameters after fining were mainly influenced by the wine’s initial phenolic composition, which is determined mostly by grape variety.</p><p style="text-align: justify;"><strong>Significance and impact of the study</strong>: The outcomes of such study might be of practical interest to winemakers since they could optimize red wine production technology by selecting the appropriate fining agent according to the specific phenolic profiles of the produced wines and thus improve their quality.</p>



2018 ◽  
Vol 240 ◽  
pp. 751-758 ◽  
Author(s):  
Georgiana-Diana Dumitriu ◽  
Nieves López de Lerma ◽  
Camelia E. Luchian ◽  
Valeriu V. Cotea ◽  
Rafael A. Peinado


2017 ◽  
Vol 23 (2) ◽  
pp. 215-225 ◽  
Author(s):  
D. Gazzola ◽  
S. Vincenzi ◽  
M. Marangon ◽  
G. Pasini ◽  
A. Curioni


2014 ◽  
Vol 240 (4) ◽  
pp. 689-699 ◽  
Author(s):  
Bernd Lochbühler ◽  
Sébastien Manteau ◽  
Christophe Morge ◽  
Marie-Madeleine Caillet ◽  
Claudine Charpentier ◽  
...  
Keyword(s):  


2011 ◽  
Vol 399-401 ◽  
pp. 1160-1164
Author(s):  
Yan Hong Hu ◽  
Mei Li ◽  
Zhao Gang Liu ◽  
Mi Tang Wang ◽  
Li Wang ◽  
...  

Na2O-CaO-SiO2 flat glasses were prepared with traditional melt-quenching methods.The effect of different fining glass agent,such as Na2SO4,Ce2(CO3)3,Rare earth composite fining agent,and content on the fining and decolourizing of glass was studied. In addition,the effect of rare-earth composite glass fining agent on the fining and decolourizing of molten glass was analyzed.Mechanism of fining was discussed.Comparative results indicate that composite agent is better than a single agent on the effect of clarification and decolourization.increasing the transparency of glass,glass’s strength was increased largely.



2013 ◽  
Vol 19 (2) ◽  
pp. 153-160 ◽  
Author(s):  
S. Vincenzi ◽  
C. Dinnella ◽  
A. Recchia ◽  
E. Monteleone ◽  
D. Gazzola ◽  
...  


1960 ◽  
Vol 17 (2) ◽  
pp. 78-82 ◽  
Author(s):  
V. V. Vargin ◽  
G. A. Osadchaya
Keyword(s):  


2018 ◽  
Vol 7 (1) ◽  
pp. 1105-1112 ◽  
Author(s):  
Luı́s Filipe-Ribeiro ◽  
Fernanda Cosme ◽  
Fernando M. Nunes


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