k 0-INAA as a contributor in nutrition and health: multielemental determination in Stevia rebaudiana Bertoni, leaves and stevioside product

• Autores: Bedregal, P.S., Ubillús, M.S., Mendoza, P.A.
• Formato: artículo
• Fecha de Publicación: 2018
• Institución: Instituto Peruano de Energía Nuclear
• Repositorio: IPEN-Institucional
• Lenguaje: inglés
• OAI Identifier: oai:repositorio.ipen.gob.pe:20.500.13054/747
• Enlace del recurso: https://hdl.handle.net/20.500.13054/747; https://doi.org/10.1007/s10967-017-5684-1
• Nivel de acceso: acceso abierto
• Materia: Additives in nutrition; k0-method; Neutron activation analysis; Stevia rebaudiana Bertoni

Concerned about food safety and considering the advantages that bring the use of the powerful INAA technique based in k0 method, we have decided to perform a complete multi element determination in the leaves and in the product stevioside, of Stevia rebaudiana Bertoni, which use as a sweetener has increased in the last decade. Using Stevia leaves from different origin, thirty seven elements were determined using k0-INAA; copper was quantified using FAAS, while sixteen elements were determined in the stevioside product from different manufacturers. The results indicated that it is necessary to make a strict quality control on the content of elements in leaves, which are used both as a raw material of the stevioside product, as a sweetener.