Author(s):

Marjahan Akter, Mohammed Kamrul Huda and Mohammed Mozammel Hoque

Abstract: Phytochemical investigation of nine medicinal orchdids species viz. Acampe papillosa (Lindl.) Lindl., Aerides odoratum Lour., Bulbophyllum lilacinum Ridl., Cymbidium aloifolium (L.) Sw., Dendrobium aphyllum (Roxb.) C.E.C. Fisch., Eria tomentosa (Koen.) Hook. f., Geodorum densiflorum (Lam.) Schltr., Papilionanthe teres (Roxb.) Schltr, and Rhynchostylis retusa (L.) Blume. Has been performed based on ethno-medicinally potentiality. Secondary metabolitez like alkaloids, flavonoids, tannins, coumarin, quinine, steroids, terpinoids are present in all species but phlobatannins absent in all species among 10 secondary metabolites. On the basis of overall phytochemical screening, Aerides odoratum Lour. Was found the most potential medicinal orchid which showed the presence of eight secondary metabolites among ten tested. On the other hand Acampe papillosa (Lindl.) Lindl, Bulbophyllum lilacinum Ridl. And Papilionanthe teres (Roxb.) Schltr. showed the presence of six secondary metabolites. The lowest activity of secondary metabolites observed in Dendrobium aphyllum (Roxb.) C.E.C.Fisch. Further detailed phytochemical study and isolation of bioactive compounds from these nine orchid species are needed to discover new drugs and medicine.

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