Wine is really false drops a little white vinegar will know This trick is not working k-boxing

Wine is really false drops a little white vinegar will know? This trick is not the Modern Express News (reporter trainee reporter Yu Yuehua Wen Jetion photo) for love Wine people every day to drink, drink two cups of Wine is a kind of enjoyment of life. Not only appetizing, but also to prevent cardiovascular and cerebrovascular diseases. But do you know what you drink? There are users weapon, can easily distinguish between true and false Wine paper with white vinegar and health at home. This is useful? November 7th, the modern express reporter walked into the Department of food science and engineering, Nanjing University of Finances and Economics, Department of biological engineering laboratory, along with Professor Wu made three sets of true and false wine identification experiments. In the laboratory, Professor Wu alcohol and anthocyanins after mixing, gently shake the cup, a genuine "Wine" appeared. The reporter with two minutes of anthocyanin edible alcohol blending a cup of "Wine" Wuding biological engineering experts from the Institute of food Wine Southern finance, from teaching has been 32 years. He teaches the students to make wine every year. Professor Wu introduced, Wine industry of dragons and fishes jumbled together. Some unscrupulous traders in order to save costs, do not have a real grape wine fermentation. But with the anthocyanins, or even directly with chemical pigment and edible alcohol blending to false Wine. While blending out false Wine, from the appearance, could not distinguish. In order to do the need to identify the authenticity of the wine, the modern express reporter purchased from the Internet in advance of anthocyanins, the box reads "grape seed extract". Wuding respectively weighing the weight of different anthocyanins into 10 Wine tasting cup. Then, he was to pour into a certain number of tasting edible alcohol. Reporters noted that alcohol and anthocyanin after mixing, gently shaking, immediately appeared in a cup of precipitation and transparency are good enough to do that, "Wine". The blending process took only 2 minutes. In the experimental steps: 1. First, prepare 4 Wine tasting cup, two cup into the cup into two really Wine, blending fake Wine. 2. In one cup of Wine really drops in white vinegar, Wine color and no drops of vinegar really Wine compared to slightly lighter. 3. In one cup of blending Wine drops in false color with white vinegar, it did not drop into the white false Wine also slightly lighter than. In a cup of blending Wine drops in false color with white vinegar, it did not drop into the white false Wine also slightly lighter than. – results: not a chemical reaction from the white vinegar and genuine Wine, to identify true and false. Wu explained that this is because there are a lot of water in white vinegar and white vinegar, low acidity, so the effect is not obvious to the true effect of Wine. So, why do Wine and vinegar react, blending out Wine and vinegar will react? Wu said, because of the false Wine blending, with anthocyanins, and brewed with grape Wine, which is also the content of anthocyanin, so the same reaction is not difficult to understand. "If you are using chemical pigment blending Wine, is indeed the discoloration. However, illegal businesses are also very"相关的主题文章: