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Effects of the irrigation regimes on grapevine cv. Bobal in a Mediterranean climate: II. Wine, skins, seeds, and grape aromatic composition
Agricultural Water Management ( IF 6.7 ) Pub Date : 2021-07-27 , DOI: 10.1016/j.agwat.2021.107078
V. Lizama 1 , E.P. Pérez-Álvarez 2 , D.S. Intrigliolo 2, 3 , C. Chirivella 4 , I. Álvarez 1 , M.J. García-Esparza 1
Affiliation  

This study aims to determine the effects and the response to irrigation regimes (i) rainfed, (ii) deficit irrigation (DI), and (iii) full irrigation (FI) on wine and grape skin, seed and aromatic composition of grapevine cv. Bobal. The results show that the deficit irrigation treatment can modulate some important parameters of grapes and wine colour, and the aromatic composition of the grapes, with respect to rainfed and/or unlimited irrigation. In general, alcohol concentration and total acidity of the wines decreased with the application of water, while berry weight increased. Wine colour, total phenolics, and anthocyanins increased when water application was restricted due to the effect of water stress on anthocyanins, tannins and colour parameters of the grape skins and seeds. The water regime did not affect the seed polymeric concentration values, while the polymerization of grape skin tannins (higher mDP, aMW and %G) from the irrigated treatments, positively affected must astringency. Some aromatic precursors such as benzaldehyde, guaiacol, 4-ethylphenol, 4-vinylphenol, α-ionone, γ-decalactone, syringaldehyde, and vainillin increased in the irrigated treatments with respect to rainfed. Benzanoic acid, 3-hydroxybenzaldehyde and octanoic acid content also increased with respect to the full irrigation treatment. These increases can favour metabolic pathways that enhance specific volatile aromas in the wines, affecting their sensory quality. The overall the results presented demonstrate the important role played by the irrigation regime in modulating Bobal grapes and wine composition.



中文翻译:

灌溉制度对葡萄品种的影响。地中海气候中的博巴尔:II。酒、皮、种子和葡萄的芳香成分

本研究旨在确定灌溉制度 (i) 雨育、(ii) 亏缺灌溉 (DI) 和 (iii) 充分灌溉 (FI) 对葡萄品种的葡萄酒和葡萄皮、种子和芳香成分的影响和响应。博巴尔。结果表明,在雨养和/或无限制灌溉方面,亏缺灌溉处理可以调节葡萄和葡萄酒颜色的一些重要参数,以及葡萄的芳香成分。一般来说,酒的酒精浓度和总酸度随着水的应用而降低,而浆果重量增加。由于水分胁迫对葡萄皮和种子的花青素、单宁和颜色参数的影响,当限制浇水时,葡萄酒的颜色、总酚类物质和花青素会增加。浇水方式不影响种子聚合物浓度值,而来自灌溉处理的葡萄皮单宁(更高的 mDP、aMW 和 %G)的聚合对葡萄涩味产生积极影响。一些芳香族前体如苯甲醛、愈创木酚、4-乙基苯酚、4-乙烯基苯酚、α-紫罗兰酮、γ-癸内酯、丁香醛和香草醛在灌溉处理中增加。相对于完全灌溉处理,苯甲酸、3-羟基苯甲醛和辛酸含量也增加。这些增加有利于增强葡萄酒中特定挥发性香气的代谢途径,影响其感官质量。总体结果表明,灌溉制度在调节博巴尔葡萄和葡萄酒成分方面发挥了重要作用。而来自灌溉处理的葡萄皮单宁的聚合(更高的 mDP、aMW 和 %G)对葡萄汁的涩味产生积极影响。一些芳香族前体如苯甲醛、愈创木酚、4-乙基苯酚、4-乙烯基苯酚、α-紫罗兰酮、γ-癸内酯、丁香醛和香草醛在灌溉处理中增加。相对于完全灌溉处理,苯甲酸、3-羟基苯甲醛和辛酸含量也增加。这些增加有利于增强葡萄酒中特定挥发性香气的代谢途径,影响其感官质量。总体结果表明,灌溉制度在调节博巴尔葡萄和葡萄酒成分方面发挥了重要作用。而来自灌溉处理的葡萄皮单宁的聚合(更高的 mDP、aMW 和 %G)对葡萄汁的涩味产生积极影响。一些芳香族前体如苯甲醛、愈创木酚、4-乙基苯酚、4-乙烯基苯酚、α-紫罗兰酮、γ-癸内酯、丁香醛和香草醛在灌溉处理中增加。相对于完全灌溉处理,苯甲酸、3-羟基苯甲醛和辛酸含量也增加。这些增加有利于增强葡萄酒中特定挥发性香气的代谢途径,影响其感官质量。总体结果表明,灌溉制度在调节博巴尔葡萄和葡萄酒成分方面发挥了重要作用。一些芳香族前体如苯甲醛、愈创木酚、4-乙基苯酚、4-乙烯基苯酚、α-紫罗兰酮、γ-癸内酯、丁香醛和香草醛在灌溉处理中增加。相对于完全灌溉处理,苯甲酸、3-羟基苯甲醛和辛酸含量也增加。这些增加有利于增强葡萄酒中特定挥发性香气的代谢途径,影响其感官质量。总体结果表明,灌溉制度在调节博巴尔葡萄和葡萄酒成分方面发挥了重要作用。一些芳香族前体如苯甲醛、愈创木酚、4-乙基苯酚、4-乙烯基苯酚、α-紫罗兰酮、γ-癸内酯、丁香醛和香草醛在灌溉处理中增加。相对于完全灌溉处理,苯甲酸、3-羟基苯甲醛和辛酸含量也增加。这些增加有利于增强葡萄酒中特定挥发性香气的代谢途径,影响其感官质量。总体结果表明,灌溉制度在调节博巴尔葡萄和葡萄酒成分方面发挥了重要作用。3-羟基苯甲醛和辛酸的含量也随着充分灌溉处理而增加。这些增加有利于增强葡萄酒中特定挥发性香气的代谢途径,影响其感官质量。总体结果表明,灌溉制度在调节博巴尔葡萄和葡萄酒成分方面发挥了重要作用。3-羟基苯甲醛和辛酸的含量也随着充分灌溉处理而增加。这些增加有利于增强葡萄酒中特定挥发性香气的代谢途径,影响其感官质量。总体结果表明,灌溉制度在调节博巴尔葡萄和葡萄酒成分方面发挥了重要作用。

更新日期:2021-07-27
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