title: Isolation and characterization of antioxidant and antibacterial compound from mango ginger (Curcuma amada Roxb.) rhizome.
abstract: The chloroform extract of mango ginger (Curcuma amada Roxb.) rhizome was subjected to antioxidant activity-guided purification by repeated silica gel column chromatography to obtain a pure antioxidant compound. The structure was deduced by analyzing UV, IR, liquid chromatography-mass spectrometry (LC-MS) and two-dimensional heteronuclear multiple quantum coherence transfer spectroscopy (2D-HMQCT) NMR spectral data, and named it as "Amadannulen", a novel compound. It exhibited DPPH radical scavenging activity, super oxide radical scavenging activity, lipid peroxidation inhibitory activity and metal chelating activity. Amadannulen also showed antibacterial activity against both Gram-positive and Gram-negative bacteria tested. It also exhibited bactericidal activity against M. luteus, B. cereus and B. subtilis.
authors.affiliation: Department of Fruit and Vegetable Technology, Central Food Technological Research Institute, Mysore 570020, India.
authors.forename: R S
authors.initials: RS
authors.lastname: Policegoudra
authors.forename: K
authors.initials: K
authors.lastname: Abiraj
authors.forename: D
authors.initials: D
authors.lastname: Channe Gowda
authors.forename: S M
authors.initials: SM
authors.lastname: Aradhya
mesh_terms: D000900:Anti-Bacterial Agents / Q000302:isolation & purification* / Q000494:pharmacology; D000975:Antioxidants / Q000302:isolation & purification*; D002851:Chromatography, High Pressure Liquid; D002855:Chromatography, Thin Layer; D030024:Curcuma / Q000737:chemistry*; D015227:Lipid Peroxidation / Q000187:drug effects; D009682:Magnetic Resonance Spectroscopy; D008826:Microbial Sensitivity Tests; D027343:Rhizome / Q000737:chemistry*; D013045:Species Specificity; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet
chemical_list: D000900:Anti-Bacterial Agents; D000975:Antioxidants