Synthesis and characterization of microcrystalline cellulose produced from bacterial cellulose

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorde Oliveira, Rafael Leite
dc.creatorBarud, Hernane da Silva
dc.creatorde Assuncao, Rosana M. N.
dc.creatorMeireles, Carla da Silva
dc.creatorCarvalho, Geandre Oliveira
dc.creatorRodrigues Filho, Guimes
dc.creatorMessaddeq, Younes
dc.creatorLima Ribeiro, Sidney Jose
dc.date2014-05-20T14:20:01Z
dc.date2016-10-25T17:41:23Z
dc.date2014-05-20T14:20:01Z
dc.date2016-10-25T17:41:23Z
dc.date2011-12-01
dc.date.accessioned2017-04-05T22:32:56Z
dc.date.available2017-04-05T22:32:56Z
dc.identifierJournal of Thermal Analysis and Calorimetry. Dordrecht: Springer, v. 106, n. 3, p. 703-709, 2011.
dc.identifier1388-6150
dc.identifierhttp://hdl.handle.net/11449/26009
dc.identifierhttp://acervodigital.unesp.br/handle/11449/26009
dc.identifier10.1007/s10973-011-1449-1
dc.identifierWOS:000297371200011
dc.identifierhttp://dx.doi.org/10.1007/s10973-011-1449-1
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/870836
dc.descriptionIn this study, microcrystalline cellulose (MCC) was prepared from the acid hydrolysis of bacterial cellulose (BC) produced in culture medium of static Acetobacter xylinum. The MCC-BC produced an average particle size between 70 and 90 mu m and a degree of polymerization (DP) of 250. The characterization of samples was performed by thermogravimetric analysis, X-ray diffraction, and scanning electron microscopy (SEM). The MCC shows a lower thermal stability than the pristine cellulose, which was expected due to the decrease in the DP during the hydrolysis process. In addition, from X-ray diffractograms, we observed a change in the crystalline structure. The images of SEM for the BC and MCC show clear differences with modifications of BC fiber structure and production of particles with characteristics similar to commercial MCC.
dc.languageeng
dc.publisherSpringer
dc.relationJournal of Thermal Analysis and Calorimetry
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectBacterial cellulose
dc.subjectMicrocrystalline cellulose
dc.subjectAcetobacter xylinum
dc.subjectAcid hydrolysis
dc.titleSynthesis and characterization of microcrystalline cellulose produced from bacterial cellulose
dc.typeOtro


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