The chemical name of coffee: the chemistry of a refreshing drink

The chemical name of coffee and the chemical composition of refreshing drinks

Coffee is a popular refreshing drink, and its chemical name is caffeine. Caffeine is an alkaline substance naturally produced in coffee beans, which has the effect of stimulating the central nervous system and increasing alertness. In addition to coffee, tea, cocoa and some soft drinks also contain different levels of caffeine.

1. French coffee caffeine structure and characteristics

From a chemical point of view, caffeine is a yellow crystalline solid with high solubility in water. Its molecular formula is C8H10N4O2, and its structure is composed of two triazacyclic rings (manazolyl rings). This structure enables it to cross the blood-brain barrier and affect the release of neurotransmitters such as dopamine in the brain.

2. Other ingredients in coffee

In addition to the main ingredient, caffeine, coffee contains many other compounds, the most important of which are bitter substances, aromatic substances and acidic substances.

Bitter substances are a class of compounds in coffee that give coffee its bitter taste. These compounds are mainly produced by the reaction between sugars and amino acids during the roasting process. Although bitter substances are present in low levels in coffee, they play an important role in the formation of coffee flavor.

Aromatic substances are compounds that give coffee its special aroma. They are mainly composed of volatile organic compounds, including aldehydes, ketones, carboxylic acids, etc. These aromatic molecules are released during the grinding or brewing process, bringing us a rich and attractive coffee aroma.

In addition, coffee also contains a certain amount of organic acids, such as citric acid, ursolic acid, etc. These organic acids give coffee a weak but obvious fruity flavor and can affect its taste balance.

3. Effects of caffeine on human health

As a stimulant, caffeine has certain effects on the human body. Moderate intake of caffeine can refresh the mind, increase alertness and concentration, and improve psychological state. In addition, caffeine can also promote metabolism, enhance muscle contraction and reduce fatigue.

However, excessive intake of caffeine may lead to adverse reactions, such as insomnia, anxiety, palpitations, etc. Individuals have different sensitivities to caffeine, so everyone needs to exercise appropriate control when consuming coffee or other caffeinated beverages according to their own circumstances.

4. Further reading: Chemical components of other energy drinks

In addition to coffee, tea is also a common refreshing drink. Tea mainly contains theophylline (chemical name is trimethylolmene) and polyphenols (such as tea polyphenols). Compared with coffee, the theophylline content in tea is lower and has a mild and long-lasting stimulating effect.

Cocoa is also a food that contains stimulants. The main ingredient in cocoa is chocolate alkali (chemical name: dimethyl methylene). Chocolate alkali has similar effects to caffeine, but its stimulating effect is weaker.

In addition, caffeine or other stimulants are added to some soft drinks to increase their refreshing effect. These drinks usually also contain additives such as sugar, artificial flavors and preservatives.

in conclusion

Coffee is a popular stimulant drink, and its chemical name is caffeine. In addition to caffeine, coffee also contains bitter substances, aromatic substances, and acidic substances. Moderate intake of caffeine can bring many benefits, but excessive intake may lead to adverse reactions. In addition to coffee, tea, cocoa, and some soft drinks also contain stimulant ingredients to varying degrees.