Mona El-Banna: Alkaloids: Chemistry, Biological Activities, and Therapeutic Potential, Kartoniert / Broschiert

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In chemistry, Alkaloids are nitrogen containing natural occurring organic compounds which contains a heteroatom Nitrogen in their structure and these, nitrogen atom is responsible for the alkalinity of Alkaloids. In alkaloids, these, nitrogen atom is usually situated in the ring system, For example: Indole alkaloids, Quinoline alkaloids. In nature, Alkaloids are derived by the large variety of organisms including- plants, bacteria, animals, fungi. There are more than 12, 000 alkaloids have been already described. On the basis of structure, alkaloids can be divided into sub-classes like indoles, quinolines, iso-quinolines, steroids and terpenoids alkaloids. Alkaloids are mainly classified in two major classes- on the basis of origin and presence of nitrogen atom and on the basis of ring structure. Alkaloids play a significant role in daily human life, being present in food, beverages, medicinal drugs, stimulants, narcotics, and insecticides, and influencing a wide range of physiological activities. Even in minute doses, alkaloids can exert potent biological effects on both human and animal systems.