medicinal plants

'Medicinal plants that contain the active ingredients in one or part of his body (secondary metabolites) that these substances have effects on the organism. Medicinal herbs have remarkable characteristics that distinguish them from crop plants, which include:

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 1) active ingredients of certain substances made in the body of plants and stored as a series of special processes and complex series of biochemical (usually less than 1% dry matter) is made.
2) certain parts of the plant may be effective materials such as licorice root, such as stems, leaves, such as olive leaf, such as borage flowers, fruit and seeds such as beans and basil Sisymbrium irio.
3) usually fresh organs to be used so that the organs should under certain operations such as cleaning (removing impurities), conditioning and drying were then used.

4) Medicinal herbs contain active ingredients in medicinal plant cultivation as compared to the public in general and the grain that is used daily

  Only in rare cases can be used and thus the area under cultivation accounted few.5) pharmaceutical products resulting plant response to environmental stresses and environmental stresses and so the crops reduce yield and quality of the product,  But unlike in medicinal plants in the conditions of climate and soil abuse increases the active substance in the plant