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Modeling the Antioxidant Capacity of Red Wine from Different Production Years and Sources under Censoring

机译:审查下不同生产年份和来源的红酒的抗氧化能力建模

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摘要

The health benefit of drinking wine, expressed as capacity to defend the human organism from the free radicals action and thus reducing the oxidative stress, has already been demonstrated, and the results had been published in scientific literature. The aim of our study was to develop and assess a model able to estimate the antioxidant capacity (AC) of several samples of Romanian wines and to evaluate the AC dependency on the vintage (defined as the year in which wine was produced) and grape variety under presence of censored data. A contingency of two grape varieties from two different vineyards in Romania and five production years, with some missing experimental data, was used to conduct the analysis. The analysis showed that the antioxidant capacity of the investigated wines is linearly dependent on the vintage. Furthermore, an iterative algorithm was developed and applied to obtain the coefficients of the model and to estimate the missing experimental value. The contribution of wine source to the antioxidant capacity proved equal to 11%.
机译:饮用葡萄酒对健康的好处,已被证明可以保护人体免受自由基的侵害,从而减少氧化应激,其结果已在科学文献中发表。我们研究的目的是开发和评估一个模型,该模型能够估计罗马尼亚葡萄酒的多个样品的抗氧化能力(AC),并评估AC对年份(定义为葡萄酒的生产年份)和葡萄品种的依赖性。在审查数据存在的情况下。使用来自罗马尼亚两个不同葡萄园和五个生产年的两个葡萄品种的偶然性,并缺少一些实验数据,来进行分析。分析表明,所研究葡萄酒的抗氧化能力与年份成线性关系。此外,开发了一种迭代算法,并将其应用于获得模型的系数并估计缺失的实验值。葡萄酒来源对抗氧化能力的贡献被证明等于11%。

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