Abstract

CHEMICAL COMPOSITION AND BIOACTIVE POTENTIAL OF ESSENTIAL OILS OF RHIZOMES OF ZINGIBER CAPITATUM ROXB

Sanghamitra Nayak*, Alok Kumar Jena, Jayanta Patra, Swati Sucharita

ABSTRACT

Purpose: In the present study an attempt was made to evaluate the chemical composition of essential oils of rhizomes of Zingiber capitatum Methods: Chemical composition of Zingiber capitatum essential oil was evaluated by GC-MS analysis along with its biological screening for antimicrobial and antioxidant properties. Results: GC-MS analysis showed that presence of 7 compounds in the essential oil 1, 8-cineole (36.23%), Linalool (30.9%), Tricyclene (17.80%) β-Pinene (7.29%), 3-cyclohexane-1 methanol, alpha, alpha- 4-trimethyl (3.31%), methyl-3-benzoate (2.25%) and α-terpineol (2.22%). In vitro antimicrobial activity of the essential oil showed moderate antimicrobial activity against the test pathogens. The antioxidant properties of the essential oil evaluated by DPPH (α,α- Diphenyl-β-Picryl-hydrazyl) scavenging assay, H2O2 scavenging assay, total antioxidant capacity, total phenol content, β carotene and Lycopene content showed strong results. Conclusion: The present study revealed that the essential oil is rich in bioactive compounds like 1, 8-cineole, Linalool, β-pinene, and terpineol with strong antimicrobial and antioxidant properties.

Keywords: Zingiber capitatum Roxb, GC-MS analysis, Antioxidant, Antimicrobial.