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J Agric Food Chem

Title:		Composition of the volatile fraction of Ocotea bofo Kunth (Lauraceae) calyces by GC-MS and NMR fingerprinting and its antimicrobial and antioxidant activity
Author(s):		Guerrini A; Sacchetti G; Muzzoli M; Moreno Rueda G; Medici A; Besco E; Bruni R;
Address:		"Dipartimento delle Risorse Naturali e Culturali, Universita degli Studi di Ferrara, Corso Ercole d'Este 32, 44100 Ferrara, Italy"
Journal Title:		J Agric Food Chem
Year:		2006
Volume:		54
Issue:		20
Page Number:		7778 - 7788
DOI:		10.1021/jf0605493
ISSN/ISBN:		0021-8561 (Print) 0021-8561 (Linking)
Abstract:		"The chemical composition of the essential oil obtained by steam distillation of the floral calyces of Ocotea bofo Kunth (Lauraceae) was studied by means of GC, GC-MS, and 1H, 13C, and bidimensional NMR (COSY, HSQC, HMBC). Twenty-five constituents were identified, and estragole (48.7%), alpha-phellandrene (19.6%) and sabinene (10.4%) were found to be the major components. Antimicrobial activity against six aerobic bacteria and five yeasts and antioxidant activity performed by photochemiluminescence (PCL), 1,1-diphenyl-2-picrylhydrazyl (DPPH), and beta-carotene bleaching assays are reported. The oil showed fair inhibiting properties against bacteria and a good inhibition against most yeasts. Its radical scavenging and chain-breaking antioxidant properties were comparable to or better than those provided by synthetic controls. Particular emphasis has been given to the use of NMR as a fast and reliable tool to discriminate O. bofo essential oil from other commercial anethole- and estragole-rich oils, namely, Illicium verum, Foeniculum vulgare, and Artemisia dracunculus"
Keywords:		Allylbenzene Derivatives Anisoles/analysis/pharmacology Anti-Infective Agents/*pharmacology Antioxidants/*pharmacology Biphenyl Compounds Flowers/*chemistry Gas Chromatography-Mass Spectrometry Luminescent Measurements Magnetic Resonance Spectroscopy Ocot;
Notes:		"MedlineGuerrini, Alessandra Sacchetti, Gianni Muzzoli, Mariavittoria Moreno Rueda, Gabriela Medici, Alessandro Besco, Elena Bruni, Renato eng 2006/09/28 J Agric Food Chem. 2006 Oct 4; 54(20):7778-88. doi: 10.1021/jf0605493"