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. 2018 Jul 10;8:10417. doi: 10.1038/s41598-018-28444-4

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© The Author(s) 2018

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Pineapple parts, and TEM and SEM images of the nanocellulose and microparticles extracted. (A) Pineapple peel detail of parts investigated as sources of biogenic silica-based microparticles and nanocellulose. TEM images of microparticles present in the supernatants during the NCC extraction (after centrifugation at 2500 rpm and first incubation with H₂SO₄): (B) 3000X and (C) 10000X. SEM images of the precipitate after centrifugation: (D) 500X and (E) 1000X.