The effect of terroir on volatilome fingerprinting and qualitative attributes of non-irrigated grapes reveals differences on glycosylated aroma compounds.

IF 4.3 3区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC
ACS Applied Electronic Materials Pub Date : 2025-01-15 Epub Date: 2024-09-06 DOI:10.1002/jsfa.13849
Egli C Georgiadou, Minas Mina, Nicolas Valanides, Anna-Maria Taliadorou, Stefanos Koundouras, Claudio D'Onofrio, Andrea Bellincontro, Fabio Mencarelli, Nikolaos Barbayiannis, Vasileios Fotopoulos, George A Manganaris
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引用次数: 0

Abstract

Background: 'Xynisteri' is considered as the reference white grape cultivar in Cyprus with remarkable adaptation to adverse edaphoclimatic conditions and appreciable oenological properties that renders it as an appropriate cultivar for studies within a global context due to climate change. To this aim, two distinct non-irrigated plots with different climatic conditions, soil properties and levels of rainfall were selected; Koilani [KO, altitude 800 m, 76% calcium carbonate (CaCO3) content, pH 7.97, average temperature: 16.5 °C, rainfall: 229 mm] and Kyperounda (KY, altitude 1200 m, CaCO3-free soil, pH 6.47, average temperature: 14.9 °C, rainfall: 658 mm). An array of physiological, biochemical and qualitative indices during successive developmental stages (BBCH 75-89) were determined. During the advanced on-vine developmental stages (BBCH 85-89), the aromatic profile of grapes was assessed with the employment of gas chromatography-mass spectrometry (GC-MS). Such analysis was complemented with non-destructive chemometric analyses.

Results: Berry ripening process substantially differed on the examined plots; BBCH 89 stage reached at 267 and 303 Julian days for KO and KY, respectively. Results indicated that berry weight, soluble solids content (SSC) and α-amino nitrogen were higher in KO than in KY, with exception made for ammonium nitrogen content. A total of 75 compounds, including aliphatic alcohols, benzenic compounds, phenols, vanillins, monoterpenes and C13-norisoprenoids were identified and quantified. The variations of mesoclimatic conditions affected the volatile organic compound (VOC) profiles at the fully-ripe stage, showing a considerable rise in glycosylated aroma compounds, especially monoterpenes and benzenic compounds. In particular, the higher amount of glycosylated aroma compounds were obtained in KY berries up to mid-ripe, whereas KO showed higher glycosylated aroma compounds at fully-ripe stage. Results reported herein indicate that aroma profile of 'Xynisteri' grapes varied substantially in the examined terroirs. Interestingly, the limited rainfall in KΟ non-irrigated vine did not compromise qualitative and aromatic properties of berries.

Conclusions: The present study aimed at dissecting the impact of terroir on bush-trained, non-irrigated grapevines of a cultivar appropriate for extreme climate change scenarios. The volatilome fingerprint was highly variable among the examined plots; such results can be further exploited at vinification level towards production of single vineyard premium end products. © 2024 The Author(s). Journal of the Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

风土对非灌溉葡萄挥发物指纹图谱和质量属性的影响揭示了糖基化芳香化合物的差异。
背景:"Xynisteri "被认为是塞浦路斯的白葡萄参考栽培品种,对不利的气候条件具有显著的适应性和可观的酿酒特性,使其成为在全球气候变化背景下进行研究的合适栽培品种。为此,我们选择了两块气候条件、土壤特性和降雨量不同的非灌溉地块:Koilani [KO,海拔 800 米,碳酸钙(CaCO3)含量 76%,pH 值 7.97,平均温度:16.5 °C,降雨量:5.5 °C]:16.5 °C,降雨量:229 毫米]和 Kyperounda(KY,海拔 1200 米,不含 CaCO3 的土壤,pH 值 6.47,平均温度:14.9 °C,降雨量:229 毫米):14.9 °C,降雨量:658 毫米):658 毫米)。测定了连续发育阶段(BBCH 75-89)的一系列生理、生化和质量指标。在葡萄的后期生长阶段(BBCH 85-89),采用气相色谱-质谱法(GC-MS)对葡萄的芳香特征进行了评估。这种分析还辅以非破坏性的化学计量分析:结果:在所考察的地块上,浆果的成熟过程存在很大差异;KO 和 KY 分别在 267 和 303 Julian 天达到 BBCH 89 阶段。结果表明,KO 的浆果重量、可溶性固形物含量(SSC)和α-氨基氮含量均高于 KY,但铵态氮含量例外。共鉴定和量化了 75 种化合物,包括脂肪醇、苯化合物、酚类、香兰素、单萜烯类和 C13-异戊烯类化合物。中间气候条件的变化影响了完全成熟阶段的挥发性有机化合物(VOC)含量,显示出糖基化芳香化合物,尤其是单萜烯类和苯类化合物的大量增加。特别是,KY 浆果在成熟中期获得了较多的糖基化芳香化合物,而 KO 则在完全成熟阶段表现出较高的糖基化芳香化合物。本文报告的结果表明,"西尼斯蒂 "葡萄的香气特征在所考察的风土中存在很大差异。有趣的是,在 KΟ 非灌溉葡萄园中,有限的降雨并没有影响浆果的质量和芳香特性:本研究旨在剖析风土对灌木栽培、非灌溉葡萄树的影响,这些葡萄树的栽培品种适合极端气候变化情况。被考察地块的挥发物指纹差异很大;这些结果可在酿造阶段进一步利用,以生产单一葡萄园的优质最终产品。© 2024 作者姓名食品与农业科学杂志》由约翰威利父子有限公司代表化学工业学会出版。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
7.20
自引率
4.30%
发文量
567
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