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Identification of chemical markers to detect abnormal wine fermentation using Support Vector Machines
Computers & Chemical Engineering ( IF 4.3 ) Pub Date : 2020-11-04 , DOI: 10.1016/j.compchemeng.2020.107158
Alejandra Urtubia , Roberto León , Matías Vargas

Support Vector Machine (SVM) was explored as a tool for the early detection of abnormal fermentations, which are common in the wine industry. A database of about 18,000 data from 38 fermentations and 45 variables was used. Two cases were studied: (I) measurements of five groups (fermentation control variables, organic acids, amino acids, saturated and unsaturated fatty acids); and (II) four variables (density, YAN, brix and acidity). In addition, different kernels, training/testing configurations, and cut-off time were evaluated. Main results indicated that 80% of wine fermentations were well predicted using information of amino acids. In addition, density and YAN were the best individual chemical markers for prediction, with over 90% of accuracy at first 48 hours of the process. Therefore, SVM can be used as a decision support tool for wine fermentation monitoring. Using data from the first 72 hours, it is possible classify abnormal fermentations with high precision.



中文翻译:

使用支持向量机识别化学标记以检测异常的葡萄酒发酵

支持向量机(SVM)被开发为早期检测异常发酵的工具,这在葡萄酒行业中很常见。使用了来自38个发酵和45个变量的大约18,000个数据的数据库。研究了两个案例:(I)测量五组(发酵控制变量,有机酸,氨基酸,饱和和不饱和脂肪酸);(II)四个变量(密度,YAN,白利糖度和酸度)。此外,还评估了不同的内核,训练/测试配置和截止时间。主要结果表明,使用氨基酸信息可以很好地预测80%的葡萄酒发酵。此外,密度和YAN是预测的最佳个体化学标记,在该过程的前48小时内,准确率超过90%。因此,SVM可以用作葡萄酒发酵监控的决策支持工具。使用前72小时的数据,可以对异常发酵进行高精度分类。

更新日期:2020-11-04
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