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Valorization of sugarcane by-products through synthesis of biogenic amorphous silica microspheres for sustainable cosmetics

2022-12Journal article Open access
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dc.contributor.authorCosta, Joana R.
dc.contributor.authorCapeto, Ana Paula
dc.contributor.authorPereira, Carla F.
dc.contributor.authorPedrosa, Sílvia S.
dc.contributor.authorMota, Inês F.
dc.contributor.authorBurgal, João da Silva
dc.contributor.authorPintado, Ana I.
dc.contributor.authorPintado, Manuela E.
dc.contributor.authorOliveira, Catarina S. S.
dc.contributor.authorCosta, Patrícia
dc.contributor.authorMadureira, Ana Raquel
dc.date.accessioned2022-12-28T10:31:33Z
dc.date.available2022-12-28T10:31:33Z
dc.date.issued2022-12
dc.description.abstractAshes from sugarcane by-product incineration were used to synthesize silica powders through alkaline hot extraction, followed by ethanol/acid precipitation or the sol–gel method. Both production methods allowed amorphous spherical silica microparticles with sizes ranging from 1–15 μm and 97% purity to be obtained. Water absorption ranged from 135–155 mL/100 g and 150–250 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.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.3390/nano12234201pt_PT
dc.identifier.eid85143654406
dc.identifier.issn2079-4991
dc.identifier.pmcPMC9739331
dc.identifier.pmid36500824
dc.identifier.urihttp://hdl.handle.net/10400.14/39668
dc.identifier.wos000896204900001
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectAmorphous silicapt_PT
dc.subjectCircular economypt_PT
dc.subjectCosmetic ingredientpt_PT
dc.subjectProcess developmentpt_PT
dc.subjectSpherical microparticlespt_PT
dc.titleValorization of sugarcane by-products through synthesis of biogenic amorphous silica microspheres for sustainable cosmeticspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue23pt_PT
oaire.citation.titleNanomaterialspt_PT
oaire.citation.volume12pt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT

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