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Mineral composition of fruit by-products evaluated by neutron activation analysis

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Abstract

Brazil is one of the largest producers of fruits cropping 40 million tons per year. In agro-food processing, approximately 50 % of raw material is discarded generating large amounts of by-products. The lack of information on the nutritional quality of agroindustrial by-products precludes their potential use in the manufacture of food products accessible to all. In this context, the objective of this work was to investigate the nutritional quality of by-products of the industrial processing of fruits. Samples of bagasse, peel and seeds of several fruits (banana, camu camu, coconut, cupuaçu, guava, jackfruit, mango, orange, papaya, pineapple, and soursop) were analysed by neutron activation analysis for the determination of Br, Ca, Co, Cr, Cs, Fe, K, La, Na, Rb, Sc and Zn. In general, higher levels of minerals were found in the by-products rather than in the pulps of fruits. This indicates that the use of the by-products should be encouraged, thereby reducing the economic and environmental impact of waste generated by agroindustrial processing.

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Acknowledgments

This work was supported by “Fundação de Amparo à Pesquisa do Estado de São Paulo” (FAPESP—grant number 2010/14566-8) and “Conselho Nacional de Desenvolvimento Científico e Tecnológico” (CNPq—grant number 559710/2010-0). The authors gratefully acknowledge the financial support that has made this work possible.

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Authors and Affiliations

  1. Laboratório de Radioisótopos (LRi), Centro de Energia Nuclear na Agricultura (CENA), Universidade de São Paulo (USP), Av. Centenário, 303, Piracicaba, São Paulo, 13416-000, Brazil

    Gabriela de Matuoka e Chiocchetti, Elisabete A. De Nadai Fernandes, Márcio Arruda Bacchi, Rogério Augusto Pazim, Silvana Regina Vicino Sarriés & Thaís Melega Tomé

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  1. Gabriela de Matuoka e Chiocchetti
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  2. Elisabete A. De Nadai Fernandes
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  3. Márcio Arruda Bacchi
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  5. Silvana Regina Vicino Sarriés
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  6. Thaís Melega Tomé
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Correspondence to Gabriela de Matuoka e Chiocchetti.

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de Matuoka e Chiocchetti, G., De Nadai Fernandes, E.A., Bacchi, M.A. et al. Mineral composition of fruit by-products evaluated by neutron activation analysis. J Radioanal Nucl Chem 297, 399–404 (2013). https://doi.org/10.1007/s10967-012-2392-8

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  • DOI: https://doi.org/10.1007/s10967-012-2392-8

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