In vitro immunomodulatory, antifungal, and antibacterial screening of Phyllanthus niruri against to human pathogenic microorganisms

Abstract

Background: Medicinal plants present a wide range of potentially phytochemical compounds that contain many useful properties including anticancer, enzyme inhibition, anti-inflammatory, antifungal, antibacterial, immunomodulatory, antioxidant, and antiallergic activities. Phyllanthus niruri capsules are extensively recommended to improve the function of the diseased liver. Its leaves root and the whole plant are used as an herbal complement. Aim: The present study was aimed to focus on the in vitro immunomodulatory activity, antifungal, antibacterial and phytochemical screening of aqueous, methanolic, and ethanolic extract of P. niruri. Materials and Methods: Immunomodulatory activities were evaluated through nitroblue tetrazolium assay. Antifungal and antibacterial activity were conducted against Candida albicans (NCIM - 3100), Aspergillus niger (NCIM - 1028), Eschericha coli (NCIM - 5346), Bacillus subtilis (NCIM - 2920), and Staphylococcus aureus (NCIM - 5345) by using disc diffusion method. Results: Medicinal plants contain polyphenolic compounds which have potent anti-cancer and immunomodulator activity. P. niruri has potential immunomodulatory activity. Aqueous, methanolic, and ethanolic extract of P. niruri did not show any significant antifungal activity and 100 mg/ml, 150 mg/ml, and 200 mg/ml. Aqueous, methanolic, and ethanolic extract showed significant antibacterial activity. Conclusion: From this study, it is concluded that P. niruri does not have antifungal activity but has potent immunomodulatory and antibacterial activity. This immunomodulatory and antibacterial activity of P. niruri may be due to the secondary metabolites such as alkaloid, tannins, terpenoids, flavonoids, and phenol compounds.

Keywords

• Antimicrobial activity
• immunomodulatory activity
• Phyllanthus niruri