Unraveling the accumulation and localization of selenium and barium in Brazil nuts using spectroanalytical techniques

Ediu Carlos da Silva Junior,Nádia Marion Duran,Josimar Henrique de Lima Lessa,Paula Godinho Ribeiro,Lúcia Helena de Oliveira Wadt,Kátia Emídio da Silva,Roberval Monteiro Bezerra de Lima,Karine Dias Batista,Marcelino Carneiro Guedes,Raimundo Cosme de Oliveira,Hudson Wallace Pereira de Carvalho,André Rodrigues dos Reis,Guilherme Lopes,Luiz Roberto Guimarães Guilherme

Journal of Food Composition and Analysis（2022）

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摘要

•Selenium and Ba levels in Brazil nuts can reach 356 and 7177 μg g−1, respectively.•Selenium is present in Brazil nuts seed tissues with higher meristematic activity.•Barium showed hot spots mainly around the epidermal tissue of Brazil nuts.•Possible formation of BaSO4 and BaSeO4 in Brazil nuts relies on Ba, S and Se contents.

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关键词

Bertholletia excelsa,Synchrotron,μ-XRF,2D mapping,Nutrition,Trace elements,Amazon rainforest

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