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Extraction and characterisation of cellulose nanocrystals from pineapple peel

2018Artigo científico Acesso aberto
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dc.contributor.authorMadureira, Ana Raquel
dc.contributor.authorAtatoprak, Tugba
dc.contributor.authorÇabuk, Duygu
dc.contributor.authorSousa, Flávia
dc.contributor.authorPullar, Robert C.
dc.contributor.authorPintado, Manuela
dc.date.accessioned2018-11-05T17:10:03Z
dc.date.available2018-11-05T17:10:03Z
dc.date.issued2018
dc.description.abstractThe potential of pineapple peel as a source of cellulose nanocrystals was evaluated. Peels skin from fresh-cut fruit was used as raw material. These residues were puri ed to remove pigments, lipids and hemicellulose, and a bleaching process for deligni cation was carried out for 4-6 h. All resulting products were characterised for their lignin, hemicellulose, cellulose and ash contents using standard techniques. Dry matter at the end was low (ca. 50%) compared with the raw material (ca. 90%). The process applied resulted in ca. 20% (m/m) of puri ed cellulose (ca. 80% purity), with ineligible levels of lignin and hemicellulose present, especially when using 6h of bleaching. The puri ed cellulose was subject to acid hydrolysis for nanocrystal extraction with two testing times, 30 and 60 minutes. These cellulose nanocrystals had small sizes (< 1000 nm), with high variability and negative zeta potential values. The time of extraction did not a ect the nanocrystals' chemical and physical properties. The use of 6 h of bleaching treatment during puri cation was shown to be more e ective than 4 h. Pineapple peel was demonstrated to be a good source of cellulose for the production of cellulose nanocrystals.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMadureira, A.R., Atatoprak, T., Çabuk, D., Sousa, F., Pullar, R.C., Pintado, M. E. (2018). Extraction and characterisation of cellulose nanocrystals from pineapple peel. International Journal of Food Studies, 7(1), 24-33pt_PT
dc.identifier.doi10.7455/ijfs/7.1.2018.a3pt_PT
dc.identifier.eid85045699109
dc.identifier.issn2182-1054
dc.identifier.urihttp://hdl.handle.net/10400.14/25960
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherISEKI Food Associationpt_PT
dc.relationENVIRONMENTALLY SUSTAINABLE CERAMICS FOR APPLICATIONS AS MULTIFUNCTIONAL PHOTOCATALYST
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectCellulosept_PT
dc.subjectCNCpt_PT
dc.subjectPineapple peelspt_PT
dc.titleExtraction and characterisation of cellulose nanocrystals from pineapple peelpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleENVIRONMENTALLY SUSTAINABLE CERAMICS FOR APPLICATIONS AS MULTIFUNCTIONAL PHOTOCATALYST
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F71391%2F2010/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/FARH/SFRH%2FBPD%2F97115%2F2013/PT
oaire.citation.titleInternational Journal of Food Studiespt_PT
oaire.fundingStreamSFRH
oaire.fundingStreamFARH
person.familyNameMadureira
person.familyNamePintado
person.givenNameRaquel
person.givenNameMaria Manuela
person.identifierM-4659-2013
person.identifier456608
person.identifier.ciencia-id1C14-25F8-CC07
person.identifier.ciencia-id2F13-AAE0-3405
person.identifier.orcid0000-0001-6596-1927
person.identifier.orcid0000-0002-0760-3184
person.identifier.ridM-4659-2013
person.identifier.ridF-5696-2013
person.identifier.scopus-author-id8384097900
person.identifier.scopus-author-id7004483898
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationd33a1d99-423e-4ecd-ae9e-b3e46262b521
relation.isAuthorOfPublicationba387c7d-27c9-4016-895c-b35597e91ebc
relation.isAuthorOfPublication.latestForDiscoveryd33a1d99-423e-4ecd-ae9e-b3e46262b521
relation.isProjectOfPublicationa58a53d6-1fd0-4493-b13e-709fe5bff3ac
relation.isProjectOfPublicationa07a4261-7b4a-4873-90d8-5dc2d42520e4
relation.isProjectOfPublication.latestForDiscoverya58a53d6-1fd0-4493-b13e-709fe5bff3ac

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