Kaya Ayse D, Bruno de Sousa Raúl, Curvelo-Garcia António S, Ricardo-da-Silva Jorge M, Catarino Sofia
LEAF, Instituto Superior de Agronomia, Universidade de Lisboa , Tapada da Ajuda, 1349-017 Lisboa, Portugal.
Instituto Nacional de Investigação Agrária e Veterinária , 2565-191 Dois Portos, Portugal.
J Agric Food Chem. 2017 Jun 14;65(23):4766-4776. doi: 10.1021/acs.jafc.7b01510. Epub 2017 Jun 1.
The evolution of mineral composition and wine strontium isotopic ratio Sr/Sr (Sr IR) during wood aging were investigated. A red wine was aged in stainless steel tanks with French oak staves (Quercus sessiliflora Salisb.), with three industrial scale replicates. Sampling was carried out after 30, 60, and 90 days of aging, and the wines were evaluated in terms of general analysis, phenolic composition, total polysaccharides, multielement composition, and Sr IR. Li, Be, Mg, Al, Sc, Ti, V, Mn, Co, Ni, Cu, Zn, Ga, Ge, As, Rb, Sr, Y, Zr, Mo, Sb, Cs, Ba, Pr, Nd, Sm, Eu, Dy, Ho, Er, Yb, Lu, Tl, and Pb elements and Sr/Sr were determined by quadrupole inductively coupled plasma mass spectrometry (Q-ICP-MS) and Na, K, Ca, and Fe by flame atomic absorption spectrometry (FAAS). Two-way ANOVA was applied to assess wood aging and time effect on Sr IR and mineral composition. Wood aging resulted in significantly higher concentrations of Mg, V, Co, Ni, and Sr. At the end of the aging period, wine exhibited statistically identical Sr IR compared to control. Study suggests that wood aging does not affect Sr/Sr, not precluding the use of this parameter for wine traceability purposes.
研究了在木桶陈酿过程中葡萄酒矿物质组成和锶同位素比率Sr/Sr（Sr IR）的演变情况。一种红葡萄酒在装有法国橡木片（无梗花栎）的不锈钢罐中进行陈酿，设置三个工业规模的重复实验。在陈酿30、60和90天后进行取样，并对葡萄酒进行常规分析、酚类成分、总多糖、多元素组成和Sr IR等方面的评估。通过四极杆电感耦合等离子体质谱法（Q-ICP-MS）测定锂、铍、镁、铝、钪、钛、钒、锰、钴、镍、铜、锌、镓、锗、砷、铷、锶、钇、锆、钼、锑、铯、钡、镨、钕、钐、铕、镝、钬、铒、镱、镥、铊和铅元素以及Sr/Sr，通过火焰原子吸收光谱法（FAAS）测定钠、钾、钙和铁。采用双向方差分析来评估木桶陈酿和时间对Sr IR和矿物质组成的影响。木桶陈酿导致镁、钒、钴、镍和锶的浓度显著升高。在陈酿期结束时，与对照相比，葡萄酒的Sr IR在统计学上无差异。研究表明，木桶陈酿不会影响Sr/Sr，不排除将该参数用于葡萄酒可追溯性目的。
