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dc.contributor.authorMIRANDA, K. W. E.
dc.contributor.authorSÁ, G. V.
dc.contributor.authorFROTA, M. M.
dc.contributor.authorSANTOS NETO, J. P. dos
dc.contributor.authorCARVALHO, M. Â. A. P. de
dc.contributor.authorNUNES, N. M. V.
dc.contributor.authorMACHADO, M. T. da C.
dc.contributor.authorSOUZA, T. M. de
dc.contributor.authorBASTOS, M. do S. R.
dc.contributor.authorVASCONCELOS, L. B. de
dc.date.accessioned2026-07-31T18:48:57Z-
dc.date.available2026-07-31T18:48:57Z-
dc.date.created2026-07-31
dc.date.issued2026
dc.identifier.citationPolymer Bulletin, v. 83, n. 6, 290, June 2026.
dc.identifier.issn1436-2449
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1188809-
dc.descriptionThe expansion of agro-industry creates large volumes of carbon-rich organic waste that pose environmental challenges but also offer opportunities for valorization as sustainable feedstocks for biocomposite production. This study aimed to produce and characterize bacterial cellulose nanofibers (BCN) from agro-industrial wastes (AIW) from soursop (Annona muricata L.; BCN-S) and genipap (Genipa americana L.; BCN-G) collected in the Brazilian Amazon. Substrates (2.5% w/v) were heated to 70 °C for 15 min and inoculated with 10% (w/v) starter culture SCOBY (symbiotic culture of bacteria and yeasts). The substrates exhibited variations in the carbohydrate-to-cellulose conversion profile due to the selective activity of SCOBY. BCN-G showed a good yield (14.50 g/L), highest crystallinity index (CrI = 75.2%), a calculated crystallite size (Dav) of 163.1 nm and the presence of type I cellulose, as well as traces of type II cellulose. However, the control BCN sample (sucrose) exhibited a higher enthalpy of fusion (280 J/g), suggesting greater crystalline purity. BCN-G was incorporated into potato-starch films (5–15% v/v) yielding homogeneous, mostly transparent films with strong UV-blocking (> 99% in tested regions) and numerically lower water vapor permeability (from 1.36 to 1.24 g.mm/m2.h.kPa for the 15% BCN sample). However, differences in some barrier metrics were not statistically significant. Overall, BCN derived from genipap byproducts appears promising as a biodegradable reinforcing agent for starch-based food packaging, supporting circular economy goals and SDG 12 (Responsible Consumption and Production).
dc.language.isoeng
dc.rightsopenAccess
dc.subjectNanofibras de celulose bacteriana
dc.subjectValorização de resíduos agroindustriais
dc.subjectSubprodutos agroindustriais de frutas
dc.subjectSCOBY
dc.subjectFilmes de amido de batata
dc.subjectEmbalagem biodegradável para alimentos
dc.subjectBarreira à radiação ultravioleta
dc.subjectPermeabilidade ao vapor de água
dc.subjectBacterial cellulose nanofibers
dc.subjectAgro-industrial waste valorization
dc.subjectFruit agro-industrial byproducts
dc.subjectSymbiotic culture of bacteria and yeasts
dc.subjectPotato starch films
dc.subjectBiodegradable food packaging
dc.subjectUV-shielding properties
dc.subjectWater vapor permeability
dc.titleValorization of amazonian fruit agro-industrial by-products for sustainable production of bacterial cellulose nanofibers for food bio-packaging.
dc.typeArtigo de periódico
dc.subject.thesagroCelulose
dc.subject.thesagroFermentação Aeróbica
dc.subject.thesagroResíduo Industrial
dc.subject.thesagroGraviola
dc.subject.thesagroJenipapo
dc.subject.thesagroEmbalagem
dc.subject.thesagroBiofilme
dc.subject.thesagroAnnona Muricata
dc.subject.thesagroGenipa Americana
dc.subject.nalthesaurusCellulose
dc.subject.nalthesaurusFermentation
dc.subject.nalthesaurusPlant byproducts
dc.subject.nalthesaurusPackaging materials
dc.subject.nalthesaurusFood packaging
riaa.ainfo.id1188809
riaa.ainfo.lastupdate2026-07-31
dc.identifier.doihttps://doi.org/10.1007/s00289-026-06348-y
dc.contributor.institutionKELVI WILSON EVARISTO MIRANDA, UNIVERSIDADE FEDERAL DO CEARÁ; GABRIEL VIANA SÁ, UNIVERSIDADE FEDERAL DO CEARÁ; MARYANA MELO FROTA, UNIVERSIDADE FEDERAL DO CEARÁ; JOÃO PAIXÃO DOS SANTOS NETO, UNIVERSIDADE DA MADEIRA; MIGUEL ÂNGELO ALMEIDA PINHEIRO DE CARVALHO, UNIVERSIDADE DA MADEIRA; NUNO MIGUEL VELOSA NUNES, UNIVERSIDADE DA MADEIRA; MARIANA TEIXEIRA DA COSTA MACHADO, UNIVERSIDADE FEDERAL RURAL DO RIO DE JANEIRO; TIAGO MARCOLINO DE SOUZA, UNIVERSIDADE ESTADUAL DO AMAPÁ; MARIA DO SOCORRO ROCHA BASTOS, CNPAT; LUCICLÉIA BARROS DE VASCONCELOS, UNIVERSIDADE FEDERAL DO CEARÁ.
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