Genetic Improvement of wine yeasts for opposite adsorption activity of phenolics and ochratoxin A during red winemaking

2020 ◽  
Vol 34 (4) ◽  
pp. 352-370
Author(s):  
Andrea Caridi ◽  
Rossana Sidari ◽  
Andrea Pulvirenti ◽  
Giuseppe Blaiotta
Fermentation ◽  
2020 ◽  
Vol 6 (3) ◽  
pp. 80
Author(s):  
Andrea Pulvirenti ◽  
Luciana De Vero ◽  
Giuseppe Blaiotta ◽  
Rossana Sidari ◽  
Giovanna Iosca ◽  
...  

Ochratoxin A is a dangerous mycotoxin present in wines and is considered the principal safety hazard in the winemaking process. Several authors have investigated the ochratoxin A adsorption ability of Saccharomyces cerevisiae yeasts, and specifically selected strains for this desired trait. In the present work, a huge selection of wine yeasts was done starting from Portuguese, Spanish and Italian fermenting musts of different cultivars. Firstly, 150 isolates were collected, and 99 non-redundant S. cerevisiae strains were identified. Then, the strains were screened following a multi-step approach in order to select those having primary oenological traits, mainly (a) good fermentation performance, (b) low production of H2S and (c) low production of acetic acid. The preselected strains were further investigated for their adsorption activity of pigments, phenolic compounds and ochratoxin A. Finally, 10 strains showed the desired features. The goal of this work was to select the strains capable of absorbing ochratoxin A but not pigments and phenolic compounds in order to improve and valorise both the quality and safety of red wines. The selected strains are considered good candidates for wine starters, moreover, they can be exploited to obtain a further enhancement of the specific adsorption/non-adsorption activity by applying a yeast breeding approach.


2022 ◽  
Vol 36 (1) ◽  
pp. 22-37
Author(s):  
Andrea Caridi ◽  
Rossana Sidari ◽  
Andrea Pulvirenti ◽  
Giuseppe Blaiotta ◽  
Alberto Ritieni

2004 ◽  
Vol 66 (6) ◽  
pp. 622-628 ◽  
Author(s):  
Paolo Giudici ◽  
Lisa Solieri ◽  
Andrea M. Pulvirenti ◽  
Stefano Cassanelli

2015 ◽  
Vol 45 (1) ◽  
pp. 1-11 ◽  
Author(s):  
Roberto Pérez-Torrado ◽  
Amparo Querol ◽  
Jose Manuel Guillamón

2019 ◽  
pp. 315-342 ◽  
Author(s):  
Ileana Vigentini ◽  
Ramon Gonzalez ◽  
Jordi Tronchoni

2007 ◽  
Vol 59 (2) ◽  
pp. 241-254 ◽  
Author(s):  
Vladimír Ostrý ◽  
Jarmila Škarková ◽  
Ivana Procházková ◽  
Alena Kubátová ◽  
František Malíř ◽  
...  

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