Impact of Harvest Timing on the Concentration of 3-Mercaptohexan-1-ol Precursors in Vitis vinifera Berries

作者：Hironori Kobayashi, Shuhei Matsuyama, Hideki Takase, Kanako Sasaki, Shunji Suzuki, Ryoji Takata, Hiroshi Saito · 发表于：American Journal of Enology and Viticulture · 年份：2012 · DOI：10.5344/ajev.2012.12051 · 被引用次数：18 · 研究领域：Fermentation and Sensory Analysis、Horticultural and Viticultural Research、Biochemical and biochemical processes

The effect of harvest timing on the concentration of flavor precursor 3-mercaptohexan-1-ol (flavor precursor 3MH) in Vitis vinifera grape berries was investigated. The accumulation of flavor precursor 3MH in Chardonnay grape increased in early morning and decreased during the day. The daily fluctuation of flavor precursor 3MH accumulation in grape was common to several grape cultivars irrespective of the sampling year. These results suggested that early morning harvest might yield higher concentrations of 3MH and 3-mercaptohexyl acetate in wines than daytime harvest. These findings could contribute to improving viticultural and enological practices with the aim of producing aromatic wines.