Where did coffee bitterness come from? Found the molecule that gives coffee bitterness
German scientists have discovered the molecule that brings bitterness to coffee.
Human beings have a long history of quoting coffee. Coffee has not only become a part of many people's lives, but also caused
Inspired by many artists. For example, the German composer Bach once wrote an oratorio for coffee.
To describe his love of coffee.
There are about thirty different chemicals in a cup of coffee. These different compounds bring complexity to coffee.
Taste, such as sour taste, astringent taste, bitter taste and so on. As early as 1930, many scientists began one after another.
The effects of various chemical molecules in coffee on coffee flavor were studied. However, there is no relevant research on the bitterness of coffee.
More.
Thomas Hofmann of Technical University of Munich in Germany decided to study the bitterness of coffee.
He filtered the brewed coffee and found that some of the molecules with the smallest molecular weight tasted the bitterest. So he started to focus on this.
After a series of experiments, he found that one of the molecules was chlorogenic acid lactone (chlorogenic acid lactone). Green
The original acid exists in most plants and becomes chlorogenic acid lactone after dissociation. So they analyze one. Different series
Roasted coffee to test the content of chlorogenic acid lactone.
They found that roasted coffee beans break down chlorogenic acid into chlorogenic acid lactone, giving the coffee a mild bitter taste. Succession
The result of continuous baking will decompose chlorogenic acid lactone into phenyllindane (phenylindanes), which will produce a strong bitter taste.
The findings were presented at this year's American Chemistry Annual meeting.
In addition to increasing our understanding of coffee, coffee may be more interested in knowing the source of coffee bitterness.
Manufacturer. From this study, they may be able to find ways to reduce the bitterness of coffee and make it acceptable to more people.
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Pay attention to the time when drinking coffee and the matters to be noticed.
The best time to drink coffee every day is: from 3 to 05:00 in spring and winter, and from 4 to 06:00 in summer and autumn, because this is the most tired time for the human body. In addition, in order to enjoy the delicious coffee healthily, we should also pay attention to the following: 1. Drinking more than five cups of coffee a day (about 150cc per cup) can easily lead to addiction and endanger your health. Shenzhen coffee machine rental 2. Coffee in the morning
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Precautions for drinking coffee A reasonable diet is good for your health.
Coffee is a drink that many people like to drink, especially office workers, coffee can refresh, improve work efficiency and work status, so many people drink coffee when they are tired, and they usually like to go to cafes to have a cup of coffee and chat. Coffee not only refreshes but also has many health benefits, but coffee must pay special attention to its dietary taboos when drinking coffee.
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