title: Novel antioxidant compounds from the aqueous extract of the roots of Decalepis hamiltonii (Wight and Arn.) and their inhibitory effect on low-density lipoprotein oxidation.
abstract: Roots of Decalepis hamiltonii are consumed as pickles and as a health drink in southern India for their health benefits. The antioxidant properties of the root extracts have been shown previously; this paper reports the isolation of antioxidant compounds from the aqueous extract of the roots of D. hamiltonii. Five novel antioxidant compounds were isolated and characterized by NMR and MS. The compounds exhibited free radical scavenging activity in vitro and inhibited low-density lipoprotein oxidation. This study demonstrates that the root extract of D. hamiltonii is a cocktail of several antioxidant compounds with health implications.
authors.affiliation: Department of Food Protectants and Infestation Control, Central Food Technological Research Institute, Mysore 570 020, India.
authors.forename: Anup
authors.initials: A
authors.lastname: Srivastava
authors.forename: R
authors.initials: R
authors.lastname: Harish
authors.forename: T
authors.initials: T
authors.lastname: Shivanandappa
mesh_terms: D000975:Antioxidants / Q000302:isolation & purification* / Q000494:pharmacology*; D006801:Humans; D015227:Lipid Peroxidation / Q000187:drug effects*; D008077:Lipoproteins, LDL / Q000378:metabolism*; D009682:Magnetic Resonance Spectroscopy; D019684:Magnoliopsida / Q000737:chemistry*; D013058:Mass Spectrometry; D018517:Plant Roots / Q000737:chemistry*
chemical_list: D000975:Antioxidants; D008077:Lipoproteins, LDL