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nature : formerly alkali plants. A class of organic compounds containing alkaline. Usually found in plants, also exist in some animals, some of which have to be synthesized. Simple alkaloids contain carbon, hydrogen, nitrogen and other elements, the complex will contain oxygen. Most of the tertiary amine category. Alkaloids like ammonia, have strong alkaline reaction, salt and acid formation. With optical activity. Bitterpungent. Often the higher toxicity. In medicine is very important, often unique and powerful pharmacological effects, such as morphine base can tranquilizer Effect of pilocarpine treatment of eye disease, quinine, etc. to kill malaria parasites. In addition to agricultural pests and are promoting the use of crop growth. Often the plants and organic acids (such as citric acid, malic acid and tannic acid, etc.) combined presence. Separation generally alkaline lime or impregnation, free alkaloids, ethanol, benzene or other solvent extraction and then to deal with hydrochloric acid, hydrochloride by water extraction after separation. Can sometimes be diluted hydrochloric acid directly from the plant extract. In addition, nicotine and other alkaloids volatile ahead of the steam distillation, and to deal with alkali derived.
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