The aim of the present study was to determine the phytochemical screening and antimicrobial
activity of Cymbidium aloifolium orchids in Kanyakumari district of South India. The phytochemical
screening and antimicrobial activity were performed using different extracts (methanol, ethanol,
chloroform, acetone and aqueous) of Cymbidium aloifolium. Four different bacteria (Gram positive:
Staphylococcus aureus & Bacillus subtilis; Gram negative: Escherichia coli & Klebsiella pneumoniae)
and two fungui (Penicillium sp. and Aspergillus niger) were used present study. The antimicrobial
activity was assessed by using Disc diffusion method. A preliminary phytochemical screening was
performed on the basis of detection of t... More
The aim of the present study was to determine the phytochemical screening and antimicrobial
activity of Cymbidium aloifolium orchids in Kanyakumari district of South India. The phytochemical
screening and antimicrobial activity were performed using different extracts (methanol, ethanol,
chloroform, acetone and aqueous) of Cymbidium aloifolium. Four different bacteria (Gram positive:
Staphylococcus aureus & Bacillus subtilis; Gram negative: Escherichia coli & Klebsiella pneumoniae)
and two fungui (Penicillium sp. and Aspergillus niger) were used present study. The antimicrobial
activity was assessed by using Disc diffusion method. A preliminary phytochemical screening was
performed on the basis of detection of terpenoids, flavonoids, reducing sugars, phenols, alkaloids,
saponins, tannins, steroids, amino acids and glycosides. All the extracts showed different degree of
inhibitory action that potential against tested bacteria under this study. The antibacterial activity of
Cymbidium aloifolium leaf revealed that the maximum inhibition zone of 34 mm recorded in aqueous
extract against Staphylococcus aureus. Minimum inhibitory activity was recorded in acetone and
chloroform extract. The aqueous extract had highest activity against Aspergillus niger and Rhizopus with
inhibition zone of 45 mm and 42 mm respectively. Minimum inhibitory activity was recorded in acetone
and chloroform extract.
