{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,27]],"date-time":"2026-01-27T12:09:29Z","timestamp":1769515769892,"version":"3.49.0"},"reference-count":35,"publisher":"MDPI AG","issue":"23","license":[{"start":{"date-parts":[[2022,11,26]],"date-time":"2022-11-26T00:00:00Z","timestamp":1669420800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Ag\u00eancia para o Investimento e Com\u00e9rcio Externo de Portugal, E.P.E. (AICEP)","award":["POCI-01-0247-FEDER-027578"],"award-info":[{"award-number":["POCI-01-0247-FEDER-027578"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nanomaterials"],"abstract":"<jats:p>Ashes from sugarcane by-product incineration were used to synthesize silica powders through alkaline hot extraction, followed by ethanol\/acid precipitation or the sol\u2013gel method. Both production methods allowed amorphous spherical silica microparticles with sizes ranging from 1\u201315 \u03bcm and 97% purity to be obtained. Water absorption ranged from 135\u2013155 mL\/100 g and 150\u2013250 mL\/100 g for precipitated silica and silica gel, respectively, while oil absorption ranged from 305 to 390 and from 250 to 350 mL\/100 g. The precipitation with ethanol allowed the recovery of 178 g silica\/kg ash, with a lab process cost of EUR 28.95\/kg, while the sol-gel process showed a yield of 198 g silica\/kg ash with a cost of EUR 10.89\/kg. The experimental data suggest that ash from sugarcane by-products is a promising source to be converted into a competitive value-added product, minimizing the environmental impact of disposal problems.<\/jats:p>","DOI":"10.3390\/nano12234201","type":"journal-article","created":{"date-parts":[[2022,11,28]],"date-time":"2022-11-28T04:56:25Z","timestamp":1669611385000},"page":"4201","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Valorization of Sugarcane By-Products through Synthesis of Biogenic Amorphous Silica Microspheres for Sustainable Cosmetics"],"prefix":"10.3390","volume":"12","author":[{"given":"Joana R.","family":"Costa","sequence":"first","affiliation":[{"name":"CBQF\u2014Centro de Biotecnologia e Qu\u00edmica Fina\u2014Laborat\u00f3rio Associado, Escola Superior de Biotecnologia, Universidade Cat\u00f3lica Portuguesa, Rua de Diogo Botelho 1327, 4169-005 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2215-8688","authenticated-orcid":false,"given":"Ana Paula","family":"Capeto","sequence":"additional","affiliation":[{"name":"CBQF\u2014Centro de Biotecnologia e Qu\u00edmica Fina\u2014Laborat\u00f3rio Associado, Escola Superior de Biotecnologia, Universidade Cat\u00f3lica Portuguesa, Rua de Diogo Botelho 1327, 4169-005 Porto, Portugal"}]},{"given":"Carla F.","family":"Pereira","sequence":"additional","affiliation":[{"name":"CBQF\u2014Centro de Biotecnologia e Qu\u00edmica Fina\u2014Laborat\u00f3rio Associado, Escola Superior de Biotecnologia, Universidade Cat\u00f3lica Portuguesa, Rua de Diogo Botelho 1327, 4169-005 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2055-8031","authenticated-orcid":false,"given":"S\u00edlvia S.","family":"Pedrosa","sequence":"additional","affiliation":[{"name":"CBQF\u2014Centro de Biotecnologia e Qu\u00edmica Fina\u2014Laborat\u00f3rio Associado, Escola Superior de Biotecnologia, Universidade Cat\u00f3lica Portuguesa, Rua de Diogo Botelho 1327, 4169-005 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1848-7729","authenticated-orcid":false,"given":"In\u00eas F.","family":"Mota","sequence":"additional","affiliation":[{"name":"CBQF\u2014Centro de Biotecnologia e Qu\u00edmica Fina\u2014Laborat\u00f3rio Associado, Escola Superior de Biotecnologia, Universidade Cat\u00f3lica Portuguesa, Rua de Diogo Botelho 1327, 4169-005 Porto, Portugal"}]},{"given":"Jo\u00e3o da Silva","family":"Burgal","sequence":"additional","affiliation":[{"name":"CBQF\u2014Centro de Biotecnologia e Qu\u00edmica Fina\u2014Laborat\u00f3rio Associado, Escola Superior de Biotecnologia, Universidade Cat\u00f3lica Portuguesa, Rua de Diogo Botelho 1327, 4169-005 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4931-708X","authenticated-orcid":false,"given":"Ana I.","family":"Pintado","sequence":"additional","affiliation":[{"name":"CBQF\u2014Centro de Biotecnologia e Qu\u00edmica Fina\u2014Laborat\u00f3rio Associado, Escola Superior de Biotecnologia, Universidade Cat\u00f3lica Portuguesa, Rua de Diogo Botelho 1327, 4169-005 Porto, Portugal"}]},{"given":"Manuela E.","family":"Pintado","sequence":"additional","affiliation":[{"name":"CBQF\u2014Centro de Biotecnologia e Qu\u00edmica Fina\u2014Laborat\u00f3rio Associado, Escola Superior de Biotecnologia, Universidade Cat\u00f3lica Portuguesa, Rua de Diogo Botelho 1327, 4169-005 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1305-6607","authenticated-orcid":false,"given":"Catarina S. S.","family":"Oliveira","sequence":"additional","affiliation":[{"name":"CBQF\u2014Centro de Biotecnologia e Qu\u00edmica Fina\u2014Laborat\u00f3rio Associado, Escola Superior de Biotecnologia, Universidade Cat\u00f3lica Portuguesa, Rua de Diogo Botelho 1327, 4169-005 Porto, Portugal"}]},{"given":"Patr\u00edcia","family":"Costa","sequence":"additional","affiliation":[{"name":"CBQF\u2014Centro de Biotecnologia e Qu\u00edmica Fina\u2014Laborat\u00f3rio Associado, Escola Superior de Biotecnologia, Universidade Cat\u00f3lica Portuguesa, Rua de Diogo Botelho 1327, 4169-005 Porto, Portugal"}]},{"given":"Ana Raquel","family":"Madureira","sequence":"additional","affiliation":[{"name":"CBQF\u2014Centro de Biotecnologia e Qu\u00edmica Fina\u2014Laborat\u00f3rio Associado, Escola Superior de Biotecnologia, Universidade Cat\u00f3lica Portuguesa, Rua de Diogo Botelho 1327, 4169-005 Porto, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2022,11,26]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"65","DOI":"10.1007\/s12649-010-9008-8","article-title":"Biomass Residues in Brazil: Availability and Potential Uses","volume":"1","author":"Gottschalk","year":"2010","journal-title":"Waste Biomass Valoriz."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"2886","DOI":"10.1016\/j.jenvman.2011.06.039","article-title":"Valorization of solid waste in sugar factories with possible applications in India: A review","volume":"92","author":"Balakrishnan","year":"2011","journal-title":"J. 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