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Sample Essay

Words 565

This essay discusses Caffeine. Caffeine (C8H10N4O2) is occasionally called guaranine when found in guarana, mateine when found in mate, and theine when found in tea. It is a xanthine alkaloid found in the leaves and beans of the coffee tree, in tea, yerba mate, guarana berries, and in smaller quantity in cocoa, the kola nut and the Yaupon holly.

Introduction

Caffeine (C8H10N4O2) is occasionally called guaranine when found in guarana, mateine when found in mate, and theine when found in tea. It is a xanthine alkaloid found in the leaves and beans of the coffee tree, in tea, yerba mate, guarana berries, and in smaller quantity in cocoa, the kola nut and the Yaupon holly. In plants, caffeine acts out as a natural pesticide that paralyzes and kills countless insects feeding upon them. The molecule was first isolated by the German chemist Friedrich Ferdinand Runge in 1819. Caffeine is a plant alkaloid, found in many plant species, the most regularly used of which are coffee, tea, and to some extent cocoa.

Caffeine is a central nervous system stimulant; it fights off sleepiness and reinstates alertness. Coffee and tea are one of the most popular beverages containing Caffeine, making caffeine the world’s most admired psychoactive drug. When filtered, caffeine is an intensely harsh white residue. It is added to colas and other soft drinks to give an enjoyable bitter tone. nevertheless, caffeine is also an addictive substance.

In nature, caffeine is found in generally different concentrations of the other xanthine alkaloids theophylline and theobromine, together they act as cardiac stimulants. caffeine tends to have different effects depending mainly on different strength of other stimulants and absorption rates of the mixture. World’s main source of caffeine is the coffee bean, from which coffee is prepared. Caffeine intensity depends on the variety of coffee bean and the method of grounding used.

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