[Decoding coffee] It turns out that besides caffeine, it turns out that coffee is not so simple...

 [Decoding coffee] It turns out that besides caffeine, it turns out that coffee is not so simple...

A cup of fragrant black coffee has more than simple ingredients. Each 100 grams of coffee contains about 0.6-3.2% caffeine. Caffeine stimulates the central nervous system, cardiovascular system, respiratory system, gastrointestinal, muscles, etc., and also speeds up cell metabolism. Increase. In addition to the well-known caffeine, there are many complex substances, the most special of which is the "tannin" contained in grape juice and red wine: every 100 grams of coffee contains about 9% tannin, according to Some studies have shown that it has antiviral and antibacterial functions. Others include:

Fat: about 7.4-17% per 100 grams of coffee;

Protein: about 12% per 100 grams of coffee;

Carbohydrates: about 60% per 100 grams of coffee;

Moisture: Raw beans contain approximately 11% moisture, and the remaining approximately 2.5% after roasting;

Trigonelline: Each 100 grams of coffee contains about 0.3-1.3%; this is one of the main sources of the bitter taste of coffee, and it is also a traditional Chinese medicine, which is considered to be used to treat diabetes. Studies have also shown this compound It will prevent bacteria from sticking to the teeth and protect the teeth from bacterial erosion.

Others: Coffee also contains vitamin B, a small amount of niacin and other ingredients.