ANTIMICROBIAL ACTIVITIES, GC-MS COMPOSITION AND PROXIMATE ANALYSIS OF VOLATILE OIL EXTRACT FROM TUMERIC RHIZOMES (CURCUMA LONGA)

Authors

  • Salome Stephen Micheal Department of Pure and Applied Chemistry, Faculty of Physical Sciences, Kaduna State University (KASU), Tafawa Balewa Way, PMB 2339, Kaduna,
  • Abdullahi Nuhu Maikudi Department of Pure and Applied Chemistry, Faculty of Physical Sciences, Kaduna State University (KASU), Tafawa Balewa Way, PMB 2339, Kaduna,
  • Musa Garba Abdullahi Department of Pure and Applied Chemistry, Faculty of Physical Sciences, Kaduna State University (KASU), Tafawa Balewa Way, PMB 2339, Kaduna,

Abstract

This research investigated the antimicrobial activity, GC-MS, and proximate composition of turmeric rhizomes (Curcuma longa) using standard methods. The results showed turmeric contained crude protein (8.12%), lipid (5.75%), fiber (5.00%), ash (6.50%), moisture (10.20%), and carbohydrate (64.43%). Oil was extracted via the AOAC method using n-hexane. FTIR analysis identified functional groups, including OH, CH3, C=O, and C=C, within a wavenumber range of 4000–650 cm⁻¹. UV-Visible analysis revealed a peak at 415 nm, indicating conjugated systems and aromatic compounds. GC-MS identified 19 compounds, with turmerone and curlone being prominent, known for antibacterial, antioxidant, anti-inflammatory, and anti-cancer properties. Antimicrobial testing showed turmeric oil's significant effectiveness against Staphylococcus aureus, Pseudomonas sp., and Aspergillus sp. at varying concentrations.

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Published

2025-01-05

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ARTICLES