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Surface chemistry and germination improvement of Quinoa seeds subjected to plasma activation

Opened Access Surface chemistry and germination improvement of Quinoa seeds subjected to plasma activation

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Autor: Gómez Ramírez, Ana M.
Cantos, M.
García, J. L.
Cotrino Bautista, José
López Santos, Carmen
Rodríguez González-Elipe, Agustín
Departamento: Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear
Fecha: 2017
Publicado en: Scientific Reports, 7 (5924), 1-12.
Tipo de documento: Artículo
Resumen: Plasma treatment is recognized as a suitable technology to improve germination efficiency of numerous seeds. In this work Quinoa seeds have been subjected to air plasma treatments both at atmospheric and low pressure and improvements found in germination rate and percentage of success. Seed water uptake by exposure to water vapor, although slightly greater for plasma treated seeds, did not justify the observed germination improvement. To identify other possible factors contributing to germination, the chemical changes experienced by outer parts of the seed upon plasma exposure have been investigated by X-ray photoemission spectroscopy (XPS) and scanning electron microscopy (SEM-EDX). XPS revealed that the outer layers of the Quinoa plasma treated seeds were highly oxidized and appeared enriched in potassium ions and adsorbed nitrate species. Simultaneously, SEM-EDX showed that the enrichment in potassium and other mineral elements extended to the seed pericarp and closer zones. The di...
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Cita: Gómez Ramírez, A.M., Cantos, M., García, J.L., Cotrino Bautista, J., López Santos, C. y Rodríguez González-Elipe, A. (2017). Surface chemistry and germination improvement of Quinoa seeds subjected to plasma activation. Scientific Reports, 7 (5924), 1-12.
Tamaño: 2.728Mb
Formato: PDF

URI: http://hdl.handle.net/11441/63602

DOI: 10.1038/s41598-017-06164-5

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