%0 Journal Article %A Hironori Kobayashi %A Shuhei Matsuyama %A Hideki Takase %A Kanako Sasaki %A Shunji Suzuki %A Ryoji Takata %A Hiroshi Saito %T Impact of Harvest Timing on the Concentration of 3-Mercaptohexan-1-ol Precursors in Vitis vinifera Berries %D 2012 %R 10.5344/ajev.2012.12051 %J American Journal of Enology and Viticulture %P ajev.2012.12051 %X We analyzed the effect of harvest timing on the concentration of flavor precursor-3-mercaptohexan-1-ol (flavor precursor-3MH) in Vitis vinifera grape berries. The accumulation of flavor precursor-3MH in Chardonnay grape increased around 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. %U https://www.ajevonline.org/content/ajev/early/2012/08/16/ajev.2012.12051.full.pdf