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dc.contributor.authorTELES, V. C.
dc.contributor.authorROLDI, M.
dc.contributor.authorLUZ, S. M.
dc.contributor.authorSANTOS, W. R. dos
dc.contributor.authorANDREANI, L.
dc.contributor.authorVALADARES, L. F.
dc.date.accessioned2021-04-09T13:34:16Z-
dc.date.available2021-04-09T13:34:16Z-
dc.date.created2021-04-09
dc.date.issued2021
dc.identifier.citationBioResources, v. 16, n. 2, p. 3746-3759, 2021.
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1131171-
dc.descriptionAbstract: Starch and celluloses are biodegradable resources of great importance in terms of marketing. These biopolymers can be used to generate films with interesting mechanical, optical, and thermal properties, which can substitute for plastic films in certain applications, e.g., packaging materials. This study describes the preparation of pure plasticized starch films, prepared from soluble starch and glycerol, and the preparation of microfibrillated cellulose films from oil palm empty fruit bunches fabricated via casting. Composites made of plasticized starch were also prepared with microfibrillated cellulose added in 10% increments. The density, color difference, opacity, morphology, water activity, water affinity, and thermal and mechanical characteristics of the films were investigated. Plasticized starch is a translucent material with contact transparency; it is fragile and has relatively high water and glycerol contents. The thermogravimetric analysis of materials displayed up to four stages of weight loss related to water evaporation, glycerol, starch, and cellulose thermal degradation. As a consequence, the materials with higher cellulose content exhibited better thermal resistance. The composites with 90% of microfibrillated cellulose resulted in increased tensile strength when compared to the pure materials. The pure microfibrillated cellulose presented the highest values of Young modulus. The addition of plasticized starch to microfibrillated cellulose improved the maximum strain of the composites.
dc.language.isoeng
dc.rightsopenAccesseng
dc.subjectPlasticized starch films
dc.subjectMicrofibrillated cellulose
dc.subjectOil palm empty fruit bunches
dc.titleObtaining plasticized starch and microfibrillated cellulose from oil palm empty fruit bunches: preparation and properties of the pure materials and their composites.
dc.typeArtigo de periódico
dc.subject.thesagroAmido
dc.subject.thesagroCelulose
dc.subject.thesagroBiofilme
dc.subject.nalthesaurusCellulose
dc.subject.nalthesaurusStarch
dc.subject.nalthesaurusMechanical properties
dc.subject.nalthesaurusThermal properties
dc.subject.nalthesaurusOil palm products
dc.format.extent2p. 3746-3759
riaa.ainfo.id1131171
riaa.ainfo.lastupdate2021-04-09
dc.identifier.doiDOI: 10.15376/biores.16.2.3746-3759
dc.contributor.institutionVALÉRYA CARNEIRO TELES; MARIANA ROLDI, Universidade de Brasília; SANDRA MARIA LUZ, Universidade de Brasília; WELLINGTON RANGEL DOS SANTOS, CNPAE; LARISSA ANDREANI CARVALHO, CNPAE; LEONARDO FONSECA VALADARES, CNPAE.
Aparece en las colecciones:Artigo em periódico indexado (CNPAE)

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