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Removal of Ochratoxin A from Red Wine Using Alginate-PVA- (APLP) Complexes: A Preliminary Study

Overview
Journal Toxins (Basel)
Publisher MDPI
Specialty Toxicology
Date 2022 Apr 21
PMID 35448839
Authors
Affiliations
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Abstract

The presence of ochratoxin A (OTA) in wines is a problem mainly due to the health damage it can cause to frequent drinkers. A method for removing these toxic substances from wine is the use of lactic acid bacteria with mycotoxin-adsorption capacities; however, their use is limited since a matrix in which they can be immobilized, to remove them after use, is needed. In this study, (LP) was encapsulated in a polymeric matrix composed of polyvinyl alcohol (PVA) and alginate, forming alginate-PVA-LP (APLP) complexes. Then, these complexes were characterized, and assays of OTA and phenol removal from wines were performed. As a result, it was observed that the APLP complexes at a concentration of 0.5 g mL removed over 50% of the OTA without substantially affecting the concentration of total phenols. In addition, it was determined that the presence of directly affected the ability to adsorb OTA from wines and did not decrease the total phenols. In conclusion, an alginate-PVA matrix allows immobilizing LP, and the complexes formed are an alternative for removing ochratoxin from contaminated wines.

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