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Polyphenols, biogenic amines and amino acids patterns in Verdelho wines according to vintage

机译:verdelho葡萄酒中的多酚,生物胺和氨基酸图案根据复古葡萄酒

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摘要

Verdelho wine grape variety is an emblematic cultivar of Madeira Island. In this study, Verdelho wines, from six successive vintages (2010-2015) were characterized in terms of individual polyphenols, biogenic amines and their precursor's amino acids by reversed-phase high-performance liquid chromatography (RP-HPLC). In addition, the total phenolic content, total tannins and antioxidant capacity were evaluated. Twenty-six polyphenols, four biogenic amines and four amino acids were identified. Verdelho wines from 2011, 2014 and 2015 vintages showed the highest concentration of polyphenols (145 mg/L), amino acids (52.0 mg/L) and biogenic amines (7.27 mg/L), respectively. Principal component analysis (PCA)) was used for classification and identification of compounds related to vintage effect. Epicatechin, gallic acid, phenylethylamine, histidine, caftaric acid, phenylalanine, histamine and kaempferol-3-O-rutinoside were the main compounds responsible for Verdelho wines classification according to vintage. Finally, it was observed that vintage did not promote the formation of biogenic amines and amino acids.I Independently of vintage the total concentration of biogenic amines in Verdelho wines are lower than the legal limits set by some European Union countries (< 8 mg/L).
机译:Verdelho酒葡萄品种是马德拉岛的象征品种。在本研究中,从六个连续葡萄酒(2010-2015)的verdelho葡萄酒的特征在于通过反相高效液相色谱(Rp-HPLC)来表征各个多酚,生物胺和它们的前体氨基酸。此外,评价总酚醛含量,总单宁和抗氧化能力。鉴定了二十六种多酚,四种生物胺和四个氨基酸。从2011年开始,2014年和2015年葡萄酒的葡萄酒分别显示了最高浓度的多酚(145mg / L),氨基酸(52.0mg / L)和生物胺(7.27mg / L)。主要成分分析(PCA))用于分类和鉴定与复古效果有关的化合物。 EpicaTechin,Gallic acid,苯乙胺,组氨酸,Cafetaric acid,苯丙氨酸,组胺和Kaempferol-3-O-Rutinoside是根据复古的verdelho葡萄酒分类的主要化合物。最后,观察到复古未促进生物胺和氨基酸的形成。我独立于复古,维尔德河葡萄酒中生物胺的总浓度低于一些欧盟国家设定的法律限制(<8毫克/升)。

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