Temerdashev Zaual, Abakumov Aleksey, Bolshov Mikhail, Khalafyan Alexan, Ageeva Natalia, Vasilyev Alexander
Analytical Chemistry Department, Faculty of Chemistry and High Technologies, Kuban State University, Krasnodar 350040, Russian.
Institute for spectroscopy Russian Academy of Sciences, Moscow, Troitsk 108840, Russian.
Data Brief. 2022 Apr 14;42:108163. doi: 10.1016/j.dib.2022.108163. eCollection 2022 Jun.
The research data on the effect of bentonite clays (BT) in the process of clarification and stabilization on the elemental composition determining the varietal affiliation of wines are analyzed in the article. The initial objects were three untreated wine samples produced from Cabernet Sauvignon, Merlot and Moldova grape varieties in the Krasnodar Territory. Clarification and stabilization of untreated wine samples was carried out with 32 samples of BT of various degrees of dispersion and trademarks. The concentrations of metals, i.e., macro- and microelements, in bentonite clays, untreated and treated wine samples were determined by ICP-OES and ICP-MS methods. The results of the influence of stabilization and clarification of various wines with 32 BT on their elemental composition based on the concentrations of 16 micro- and macroelements isolated chemometrically from 39 elements are shown in the article. The elemental composition of the initial wine varieties as well as wine samples obtained after their clarification and stabilization (32 samples per each variety) was established based on the results of three parallel measurements. The aim of the study was to assess the contribution of macro- and microelements to the formation of the elemental image of wines determining their varietal affiliation. Using discriminant analysis and principal component analysis, the presence of cluster structures in treated and untreated wine samples was established in accordance with their varieties with respect to the concentrations of isolated macro- and microelements. The role of microelements was shown to be higher than that of macroelements in the formation of varietal image of wines. The combination of the most informative macro- and microelements in determining the cluster structure of wine samples increases the possibilities of assessing the intravarietal similarity and intervarietal differences of wines.
本文分析了膨润土（BT）在澄清和稳定过程中对决定葡萄酒品种归属的元素组成的影响的研究数据。初始对象是克拉斯诺达尔地区用赤霞珠、梅洛和摩尔多瓦葡萄品种生产的三个未处理葡萄酒样品。用32个不同分散度和商标的BT样品对未处理葡萄酒样品进行澄清和稳定处理。通过电感耦合等离子体发射光谱法（ICP - OES）和电感耦合等离子体质谱法（ICP - MS）测定膨润土、未处理和处理后葡萄酒样品中金属（即常量和微量元素）的浓度。本文展示了用32种BT对各种葡萄酒进行稳定和澄清处理后，基于从39种元素中化学计量分离出的16种常量和微量元素浓度，其对葡萄酒元素组成的影响结果。基于三次平行测量的结果，确定了初始葡萄酒品种以及澄清和稳定处理后获得的葡萄酒样品（每个品种32个样品）的元素组成。该研究的目的是评估常量和微量元素对决定葡萄酒品种归属的元素形象形成的贡献。使用判别分析和主成分分析，根据处理和未处理葡萄酒样品中分离出的常量和微量元素浓度，按照品种确定了聚类结构的存在。结果表明，在葡萄酒品种形象的形成中，微量元素的作用高于常量元素。在确定葡萄酒样品的聚类结构时，最具信息性的常量和微量元素的组合增加了评估葡萄酒品种内相似性和品种间差异的可能性。
