'Ladybug taint' disappears in boxed wine

时间:2019-03-08 10:16:03166网络整理admin

WINE is less likely to be ruined by molecules that add an unwanted “greeny vegetable” taste if sold in cartons sealed with a thin layer of aluminium. The “ladybug” taint is caused by alkyl-methoxypyrazines, which accumulate in wine both from grapes themselves and from remains of “ladybug” beetles in crushed grapes. Researchers added identical amounts of methoxypyrazines to red and white wines and then stored them for 18 months in aseptic “box” cartons or in bottles sealed with synthetic corks, screw tops or natural corks. The cartons easily outperformed the bottles,