Why is pure coffee bitter?
Why is coffee bitter? This problem has plagued scientists for decades.
Now, scientists have narrowed down their research and targeted two chemical molecules. At the annual meeting of the American Chemical Society, scientists reported that the two bitter chemical molecules were produced during the processing of coffee, a discovery that could revolutionize the coffee processing industry.
Thomas Hoffman of the University of Technology in Munich, Germany, and his colleagues once again separated the brewed coffee. After analysis by mass spectrometer, Hoffman identified one of the molecules, chlorogenic acid lactone, which is a decomposition product of chlorogenic acid (found in almost all plants). Hoffman's team then prepared a series of different coffees to determine the content of chlorogenic acid lactone. Although lactone will only produce mild bitterness in mild and moderate roasted coffee, the secondary decomposition products of lactone will produce strong bitterness if the coffee beans are roasted for a long time.
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The world-famous Blue Mountain Coffee region has a unique climate.
The world-famous Blue Mountain Coffee comes from the Blue Mountains of Jamaica. The caffeine content of Blue Mountain Coffee is very low, which is less than half of that of other coffees, which is in line with the modern concept of health. Look, the blue mountains stretch across the eastern part of the island of Jamaica. The mountain has such a good name because the British soldiers who once arrived in Jamaica saw the peak shrouded in blue light.
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Coffee and celebrities the French Emperor Napoleon
Coffee has functions such as excitement and stomach-invigorating. Many celebrities are inextricably bound to coffee. The great German composer Yossebach not only likes coffee, but also advises others to drink it. But incredibly, he wrote an one-act musical comedy, the Coffee Chorus, about an elderly father who persuaded his daughter to quit drinking coffee. The great French writer
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