EDXRF analysis of Amazonian Burseraceae oleoresins

Abstract

O breu exsudado das espécies de Burseraceae é amplamente utilizado tanto em cosméticos e perfumes quanto na medicina tradicional, para tratamento de diversos males. Amostras de breu de cinco espécies (Protium cf. apiculatum, P. cf. hebetatum, P. cf. heptaphyllum, P. tenuifolium e Trattinnikia peruviana), provenientes da Reserva Biológica Adolfo Ducke (Manaus-AM, Brasil), foram analisadas por FRXDE para determinação e quantificação dos elementos químicos com número atômico entre 11 e 92. Em todas as amostras foram observados os elementos S, Cl, Ca, Fe, Ti, V e Si, este último com as maiores concentrações (média de 13,1%, m/m). Além destes, foram detectados Na, P, Al, Mg, K, Cr e Mn. Excetuando-se o enxofre e o alumínio, a variação na concentração dos elementos presentes foi muito pequena (CV < 13%), sugerindo um padrão de composição inorgânica para os breus desta região. Alguns elementos foram detectados em apenas algumas espécies, sugerindo capacidades diferenciadas de absorção. The trees from the Burseraceae family exude a resin widely used for both cosmetics and perfumes and in folk medicine, for the treatment of many diseases. Samples of oleoresin from five species (Protium cf. apiculatum, P. cf. hebetatum, P. cf. heptaphyllum, P. tenuifolium and Trattinnikia peruviana) were collected in the Reserva Biológica Adolfo Ducke (Manaus-AM, Brazil) and analyzed through EDXRF for determination and quantification of the chemical elements with atomic numbers from 11 to 92. In all samples the elements S, Cl, Ca, Fe, Ti, V and Si, were observed the last one having the highest concentrations (13.1%, m/m). In addition to these elements, Na, P, Al, Mg, K, Cr and Mn were also detected. Except for sulfur and aluminum, the variation of concentration of the elements present in the sample was very small (CV < 13%, m/m), suggesting a pattern of inorganic composition for the resins of this region. Some elements were detected in just some species, suggesting different capacities of absorption.

Atomic spectrometry update–X-ray fluorescence spectrometry

“…Trees from the Burseraceae family exude a resin widely used in the manufacture of cosmetics and perfumes and in folk medicine for the treatment of diseases. Rudiger et al 261 collected samples from five species grown in Brazil to measure the inorganic elements present in the resins and suggest patterns showing the different capacities for the transfer of analytes from tree to resin. Liodakis and Tsoukala 262 reported the chemical, mineralogical and leaching behaviour of three dominant Greek forest species of ash, before and after treatment with phosphate fire retardants.…”

Chemical Composition of South American Burseraceae Non‐volatile Oleoresins and Preliminary Solubility Assessment of their Commercial Blend

“…Product development utilising Burseraceae oleoresins would first require finding industrially and environmentally adequate solvents to dissolve them properly, given that the constitution of triterpene is known to be quite insoluble in aqueous media or any other polar solvents. The inorganic content of oleoresins from a few Amazonian Burseraceae species has been reported recently, by quantifying their cationic compounds using an energy dispersive X-ray technique (Rüdiger et al, 2009).…”

Physicochemical characterization and cosmetic applications of Passiflora nitida Kunth leaf extract

“…Thus, to ensure the safe use of a plant raw material, the identification and quantification of the elements is of great importance. Various elements can be quickly found using the WDXRF technique (Rüdiger, Silva, Veiga-Júnior, 2009).…”