Sunday, April 17, 2011

Caffeine in Coffee

Coffee shops have become a global phenomenon. Although coffee shops, or coffeehouses, have existed for nearly 500 years, in the past few decades they have experienced a dramatic expansion.

Caffeine, technically refer as an alkaloid, caffeine, a chemical sometimes called ‘theine,’ ‘guaranine,’ or ‘matein.’

The caffeine content of coffee depends on the variety of the coffee bean, the particle size, the brewing method and the length of brewing or steeping time.

Brewed coffee has more caffeine than instant coffee, and espresso has more caffeine than brewed coffee.

Caffeine is odorless an has characteristics bitter taste. It is a white powder solvents and water. However it solubility in water is considerably increased at higher temperature.

Caffeine is very weak base, reacting with acid to yield readily hydrolyzed salts and relatively stable in dilute acids and alkali.

Caffeine in been helpful stimulant for athletes and dieters when used sparingly. In low doses it has been shows to increases mental alertness and aid in the release of stored glycogen.

It relieves drowsiness, helps in he performance of repetitive tasks and improve the capacity for work.

Coffee is not the only one when it comes to caffeine. Plenty of beverage as well as various medications of insomnia, appetite control and headaches – are sources of the stimulant, although when it comes to beverages, coffee is indeed the most common source.

Other popular sources of caffeine included tea leaves, cacao bean, kola nuts, guarana seed and leaves of yerba mate and qat trees.

At high doses of usage, caffeine can cause anxiety, nervousness, increased blood pressure disordered eating, insomnia and an irregular heart rate.

It also can lead to upset stomach and bowels and dizziness.

Caffeine rapidly absorbed by every organ and tissue. Excessive a caffeinated beverages consumption interferes in body’s capacity to from ‘hydroelectric’ energy and depletes ATP stored in the brain and elsewhere – a contributing factor in physical and mental fatigue.
Caffeine in Coffee

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