title: Novel methods to extract flavanones and xanthones from the root bark of Maclura pomifera.
abstract: A comparison between the extraction yields of xanthones and flavanones from the root bark of the Maclura pomifera by solid-liquid extraction (SLE), matrix solid phase dispersion (MSPD), and an alternative method using sea sand as a sample disruptor, is presented here. Two extraction solvents were used for all extraction techniques, dichloromethane and methanol:water, (9:1, v/v). The extraction procedures were reproducible as the R.S.D. values were less than 5% for almost all compounds. A recovery above 80% was obtained for macluraxanthone using the sea sand extraction procedure. Statistical treatment, ANOVA-single factor, was used to evaluate the different extraction procedures, and homogenization of plant material with sand followed by elution with dichloromethane provided the most efficient and rapid extraction method.
authors.affiliation: Departamento de Químicas da Universidade de Evora, Portugal.
authors.forename: D Martins
authors.initials: DM
authors.lastname: Teixeira
authors.forename: C Teixeira
authors.initials: CT
authors.lastname: da Costa
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D044950:Flavanones / Q000302:isolation & purification*; D031624:Maclura / Q000737:chemistry*; D024301:Plant Bark / Q000737:chemistry*; D018517:Plant Roots / Q000737:chemistry*; D015203:Reproducibility of Results; D044004:Xanthones / Q000302:isolation & purification*
chemical_list: D044950:Flavanones; D044004:Xanthones