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探索现场可用水容量 (AWC) 和基葡萄酒的非典型老化 (ATA) 发展之间的关系
Simone Delaiti1,2, Tiziana Nardin1,2, Tomas Roman1,2
1Technology Transfer Centre, Fondazione Edmund Mach, San Micheleall'Adige, TN, Italy.
Journal of food science
|October 29, 2024
概括
葡萄藤土壤可用水容量 (AWC) 影响葡萄酒的质量. 低AWC的土壤增加了基葡萄酒的异常老化 (ATA) 和2-氨基乙 (AAP) 的风险,特别是在干年份.
科学领域:
- 葡萄种植和葡萄酒学 葡萄种植和葡萄酒学
- 植物生理学 植物生理学
- 葡萄酒化学 葡萄酒化学
背景情况:
- 葡萄酒中的非典型老化 (ATA),由2-氨基乙 (AAP) 标记,与水应激有关.
- 气候变化和干旱加剧了葡萄园的水压,特别是那些可用水容量低的葡萄园.
- 早期发现ATA对于起泡葡萄酒 (SW) 质量至关重要.
研究的目的:
- 调查土壤可用水容量 (AWC) 和非典型老化 (ATA) 在SW生产的基葡萄酒 (BW) 之间的关系.
- 评估水压对不同AWC葡萄园类别的植物生产行为和AAP发展的影响.
- 评估采摘条件 (干旱与降雨) 对与AWC相关的ATA风险的影响.
主要方法:
- 根据土壤AWC (低,中,高) 划分十个葡萄园.
- 在两个生长季节中监测水力应激水平.
- 分析了基础葡萄酒 (BWs) 中的植物生产行为和2 - 氨基酸 (AAP) 水平.
主要成果:
- 在干期间,低AWC的葡萄园表现出更高的水压,导致AAP水平升高和BW中的植物生产不平衡.
- 在干旱条件下,所有AWC类都产生了潜在的ATA污染的BW.
- 随后的一年份湿地采摘显示,AWC类之间的AAP或植物生产平衡没有显著差异,尽管一些BW仍然可能受到ATA的影响.
结论:
- 在低AWC土壤上种植的葡萄树更容易产生出现异常老化 (ATA) 的有缺陷的基葡萄酒 (BW).
- 干旱条件显著增加了ATA发展的风险,特别是在土壤水供应有限的葡萄园里.
- 土壤AWC是影响葡萄酒质量和ATA风险的关键因素,特别是在影响水资源的气候变化情景下.
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