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Polymeric substances for the removal of ochratoxin A from red wine followed by computational modeling of the complexes formed

机译:用于从红酒中去除och曲霉毒素A的聚合物质,然后对形成的复合物进行计算建模

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摘要

Ochratoxin A (OTA) is a mycotoxin produced by filamentous-type fungi that contaminates a wide variety of foods and beverages such as wines. In these trials, we evaluated the capacity of the following polymers for the removal of OTA from acidic model solutions and red wine: polyvinylpolypyrrolidone (PVPP), resin of N-vinyl-2-pyrrolidinone with ethylene glycol dimethacrylate and triallyl isocyanurate (PVP-DEGMA-TAIC), and poly(acrylamide-co-ethylene glycol-dimethacrylate) (PA-EGDMA). In acidic model solution, PVP-DEGMA-TAIC and PA-EGDMA polymers removed up to 99.9% of OTA, but their trapping capacity was highly reduced by the presence of competing phenolic substances (i.e. gallic acid and 4-methylcathecol). In real red wine, PA-EGDMA polymer showed the most promising results, with more than 68.0% OTA removal and less than 14.0% reduction in total phenolic. Finally, computational chemistry analyses showed that the affinity between OTA and the polymers studied would be due to Van der Waals interactions.
机译:ch曲霉毒素A(OTA)是由丝状真菌产生的霉菌毒素,它污染了各种食品和饮料,例如葡萄酒。在这些试验中,我们评估了以下聚合物从酸性模型溶液和红酒中去除OTA的能力:聚乙烯基聚吡咯烷酮(PVPP),N-乙烯基-2-吡咯烷酮与乙二醇二甲基丙烯酸酯的树脂和三烯丙基异氰脲酸酯(PVP-DEGMA -TAIC)和聚(丙烯酰胺-共-乙二醇-二甲基丙烯酸酯)(PA-EGDMA)。在酸性模型溶液中,PVP-DEGMA-TAIC和PA-EGDMA聚合物去除了高达99.9%的OTA,但由于存在竞争性酚类物质(例如没食子酸和4-甲基乙醇),其捕集能力大大降低。在真正的红酒中,PA-EGDMA聚合物显示出最有希望的结果,其中OTA去除率超过68.0%,总酚含量减少不到14.0%。最后,化学计算分析表明,OTA与所研究的聚合物之间的亲和力将归因于范德华相互作用。

著录项

  • 来源
    《Food Chemistry》 |2018年第1期|159-164|共6页
  • 作者单位

    Univ Talca, Fac Ciencias Salud, Dept Microbiol, 2 Norte 681, Talca, Chile;

    Univ Talca, Chem Inst Nat Resources, 2 Norte 681, Talca, Chile;

    Univ Talca, Ctr Bioinformat & Mol Simulat, 2 Norte 681, Talca, Chile;

    Univ Concepcion, Sch Agr Engn, Vicente Mendez 595, Chillan, Chile;

    Kansas State Univ, Dept Anat & Physiol, Inst Computat Comparat Med, Nanotechnol Innovat Ctr Kansas State, Manhattan, KS 66506 USA;

    Univ Talca, Sch Agr Sci, 2 Norte 681, Talca, Chile;

  • 收录信息 美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Ochratoxin A; Wine; Fining; PVPP; PA-EGDMA; Molecular dynamics;

    机译:ch曲霉毒素A;葡萄酒;精制;PVPP;PA-EGDMA;分子动力学;
  • 入库时间 2022-08-17 23:20:02

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