INCITAP   20787
INSTITUTO DE CIENCIAS DE LA TIERRA Y AMBIENTALES DE LA PAMPA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
MICROWAVE PLASMA ATOMIC EMISSION SPECTROMETRY AS A TOOL FOR THE DETERMINATION OF TOXIC AND ESSENTIAL ELEMENTS IN SPIRULINA NUTRACEUTICAL SUPPLEMENTS
Autor/es:
M. SAVIO; J.M. CAMIÑA; B.D. NEHER
Lugar:
Florianópolis
Reunión:
Congreso; 18 Encontro Nacional de Química Analítica; 2016
Institución organizadora:
Universidad Federal de Santa Catarina
Resumen:
Spirulina platensis and Spirulina maxima are atype of blue-green unicellular filamentous alga belonging to the genus Arthrospira (Spirulina) and are mainly used as a dietary supplement to inducedecreased body weight1. Spirulinais presented in capsules and tablets, but also in powder as a condiment forsalads, pasta and smoothies. Spirulinaconsumption is growing worldwide and it is considered as a nutraceutical due toits properties. Though, few studies in literature have reported the elementalconcentration, including major, minor and toxic elements. Regarding producers of Spirulina, a few report theirproduction including protein, mineral and vitamin composition, while others donot. It is known that S. platensisaccumulates trace metals depending on the environment in which it develops2,being an advantage with regard to trace elements essential to humans but a riskif toxic metals are present. In this work, multielemental determination of Spirulina from different pharmaceuticalcompanies was performed by Microwave plasma atomic emission spectroscopy(MPAES). Instrumental MPAES parameters: viewing positions and nebulizer pressureswere optimized for each analyte studied. Sample preparation in thesesupplements was optimized and validated, consisting in extractions with dilutedacid assisted by either an ultrasonic probe or an ultrasonic bath. Forcomparison microwave assisted digestion was used as reference method. The reportedanalytes were compared with those declared by the manufacturers. The outcome ofthis study reveal that minerals elements in Spirulinasamples complied the recommended daily intake level (RDI-mg/daily) establish byCODEX, and also, act in accordance with the recommendation established by U.S.Food and Drug Administration (FDA). Regarding food safety monitoring, theproposed method can be easily implemented in laboratories for routine analysis ofnutraceutical supplements, with the advantage of being straight forward and ingood agreement with Green Chemistry. 1Kalafati M, Jamurtas AZ, Nikolaidis MG, Paschalis V,Theodorou AA, Sakellariou GK, Koutedakis Y, Kouretas D. Medicine & Sciencein Sports & Exercise. 42, 2010, 142.2 Al-HomaidanAA, Alabdullatif JA, Al-Hazzani AA, Al-Ghanayem AA, Alabbad AF. Saudi Journal of Biological Sciences. 22, 2015, 795.