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Research Article: Preliminary phytochemical screening of selected medicinal plants of Cambodia
Samell Keo, Channeth Meng, Sokunvary Oeung, Voleak Nov, Srey Auon Lon, Tepy Vichet, Thongsy Va, Makara Sourn, Sin Chea

Abstract
Cambodian medicinal plants traditionally have been used to treat various ailments such as backache, burn, cough, diarrhea, sprain, malaria and post-partum. This study was conducted to analyze the preliminary phytochemicals of selected Cambodian plant species including leaves of Nicotiana tabacum, whole plant of Vernonia cinerea, barks of Azadirachta indica, leaves of Annona muricata, rhizomes of Zingiber cassumunar and rhizomes of Curcuma longa. Dried plants of each species were subjected to the tests for alkaloids, phenolic compounds, tannins, flavonoids, cardiac glycosides, steroids, terpenoids, essential oils, resins, saponins, quinones and polypeptides through the  phytochemical analysis. These selected Cambodian medicinal plants showed the presences of phenolic compounds, tannins, flavonoids, steroids, terpenoids, cardiac glycosides, resins and saponins. The phytoconstituent profile of these selected plants would be of numerous uses to the alternative medicine practices in Cambodia, and these results are of great importance in performing further isolation research of novel compounds.

Keywords: medicinal plants; Cambodia