Dr. Manisha Pradhan, Sarita Patel and Dr. Ashish Patel

Phytochemicals show increasing demand in the market with their potent antioxidant, immune stimulant, growth promoting, anti-pathogenic, and anti-stress activity. Phytochemical estimation and anti-bacterial activity tuber of Zingiber officinale methanolic extract was studied. The phytochemical constituents and their composition in solvent extracts of the rhizome from Zingiber officinale were quantitatively estimated. In phytochemical estimation, phenolic & flavonoid contents were found in methanolic extract (174±0.100 mg GAE/gm extract and 100.5 ± 0.6 mg rutin/gm extract) respectively. Methanolic extract exhibit maximum antibacterial activity against E. coli (15 mm zone of inhibition), and Pseudomonas aeruginosa (15 mm zone of inhibition) followed by Bacillus subtilis (11.66 mm zone of inhibition), and Streptococus mutans (8.33 mm zone of inhibition). Our findings show that the rhizome extract of Zingiber officinale contains natural preservative agents, which justifies its use in traditional remedies.

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