Bio-Protection as an Alternative to Sulphites: Impact on Chemical and Microbial Characteristics of Red Wines
In wine, one method of limiting the addition of sulphites, a harmful and allergenic agent, is bio-protection. This practice consists of the early addition of microorganisms on grape must before fermentation. Non-Saccharomyces yeasts have been proposed as an interesting alternative to sulphite addition. However, scientific data proving the effectiveness of bio-protection remains sparse. This study provides the first analysis of the chemical and microbiological effects of a Metschnikowia pulcherrima strain inoculated at the beginning of the red winemaking process in three wineries as an alternative to sulphiting. Like sulphiting, bio-protection effectively limited the growth of spoilage microbiota and had no influence on the phenolic compounds protecting musts and wine from oxidation. The bio-protection had no effect on the volatile compounds and the sensory differences were dependent on the experimental sites. However, a non-targeted metabolomic analysis by FTICR-MS highlighted a bio-protection signature.
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REFERENCES
- https://doi.org//10.1016/j.ijfoodmicro.2010.07.022
- https://doi.org//10.1016/j.aca.2005.10.068
- https://doi.org//10.1111/j.1755-0238.2008.00031.x
- https://doi.org//10.1016/j.ijfoodmicro.2011.11.025
- https://doi.org//10.1016/j.ijfoodmicro.2007.10.016
- https://doi.org//10.1016/j.lwt.2015.05.018
- https://doi.org//10.1016/j.ijfoodmicro.2017.06.028
- https://doi.org//10.1007/s00253-017-8666-x
- https://doi.org//10.1146/annurev-food-030713-092438
- https://doi.org//10.1111/j.1567-1364.2009.00579.x
- https://doi.org//10.1007/bf00128395
- https://doi.org//10.1016/j.fm.2013.08.012
- https://doi.org//10.1016/j.fm.2010.12.001
- https://doi.org//10.1111/j.1472-765X.2012.03257.x
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