Effects of coffee Essay Example | Topics and Well Written Essays - 750 words

Effects of coffee - Essay Example coffee bean contains caffeine which is considered a Central Nervous System (CNS) stimulant (Lovett 2005). Accordingly, caffeine is the worlds most widely consumed mind-altering substance. Balentine, Harbowy & Graham (1998) stipulated that many natural sources of caffeine also contain widely varying mixtures of new(prenominal) xanthine alkaloids, including the cardiac stimulants theophylline and theobromine and other substances such as polyphenols which can form insoluble complexes with caffeine.In the Science of Cooking, the article on caffeine exhibited its following properties, to wit soluble in ethyl acetate, chloroform, pyrimidine, pyrrole, tetrahydrofuran base moderately soluble in alcohol, acetone slightly soluble in petroleum ether, ether, benzene. In another study made specifically on Caffeine, it is found that caffeine is metabolized in the liver by the cytochrome P450 oxidase enzyme system (specifically, the 1A2 isozyme) into three metab olic dimethylxanthines, which each have their own effects on the bodytheophylline (4%) Relaxes smooth muscles of the bronchi, and is used to treat asthma. The therapeutic dose of theophylline, however, is many times greater than the levels attained from caffeine metabolism. (The Pharmacogenetics and Pharmacogenomics Knowledge Base)According to Bolton & Null (1981), the precise amount of caffeine necessary to produce effects varies from soulfulness to person depending on body size and degree of tolerance to caffeine. It takes less than an hour for caffeine to commence affecting the body and a mild dose wears off in three to four hours. usance of caffeine does not eliminate the need for sleep it only temporarily reduces the sensation of being tired.The world-wide Coffee Organization presented that of all the physiological effects of coffee, the best known is that it is a stimulant to the awkward system. One or two cups of