Scientists' new invention: Cork stopper can be detected without opening the bottle. The University of California, Davis has developed two instruments that can detect cork stopper pollution and wine oxidation without opening the bottle. According to reports, this study was invested in and developed by Gene Mulvihill, owner of the Crystal Springs scenic area in New Jersey, USA Mulvihill said that the research began several years ago, collecting more than 50,000 bottles, hoping to develop an instrument that can detect the quality of wine without opening the bottle. Chemists at Davis used nuclear magnetic resonance (MRI) technology to invent a wine scanner that detects whether the wine in the bottle has deteriorated or has been oxidized. Later, Mulvihill invested in cooperation with Davis to invent a cork stopper contamination detection device. This instrument can detect trichloroanisole (2,4,6-Trichloroanisole, TCA) that causes cork stopper contamination, with a detection rate of 10,000 One in one, the inspection process takes 2-20 minutes. According to relevant information, wine contaminated by TCA (accounting for 80% of cork contamination) has typical moldy, decay and moist sack smell characteristics. The remaining 20% ​​of cork-contaminated wine is usually earthy, smokey, medicinal, or canned mushroom. TCA is a tiny molecule with a simple chemical structure. These compounds are very effective for sensory effects. TCA of 2PPT can be detected in each liter of dry white wine and sparkling wine, while its content in one liter of red wine is 2.5 times as above.
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