| Autor: |
Sharma, Sonu, Jain, Madhvi, Vidyadhari, Arya, Gupta, Priya, Sharma, Rahul, Kumar, Ashvani, Gupta, Manish Kumar |
| Předmět: |
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| Zdroj: |
International Journal of Pharmacy & Life Sciences; Jul2019, Vol. 10 Issue 7, p6331-6341, 11p |
| Abstrakt: |
India has a rich culture of medicinal herbs and spices, including Ayurvedic, Unani, Siddha and other traditional medicines but only very few have been studied chemically and pharmacologically for their potential medicinal value The phyto-chemical investigation of a plant may involve authentification and extraction of the plant material; separation and isolation of the constituents of pharmaceutical Interest, characterization of the isolated compound; investigation of the biosynthetic pathway to particular compounds and the quantitative evaluation. The choice of extraction procedure depends on the nature of the plant materials and the components to be isolated. The size reduction of the dried plant materials is an important factor for extraction. If the particle size are too fine a solid cake may be produced, which will affect the flow of menstrum and will result in the formation of „dry pockets‟ within the body of the material. If the materials is too coarse then interstics are formed, which leads to a speedy percolation of menstrum this can even lead to an incomplete extraction with a need of excessive volumes of metnstrum to exhaust the marc. The composition of the drug or the nature of the drug i.e. hard or soft, thick or thin will affect the degree of comminution need not to great. If the materials used are hard and woody, then the sized is required to be greatly reduced while some of the substances like aloes or gum resin need only to be crushed. Materials to be powdered roots, rhizomes, bark, corms, woods. There are five officials grade of powder. The medium course or the moderately fine powders are most suitable for the purpose of extraction. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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