Cellulosic material obtained from Antarctic algae biomass
| Autor: | Bruna Silveira Pacheco, Pio Colepicolo, Guilherme K. Maron, Alice Gonçalves Osorio, Andrés Mansilla, Claudio M. P. Pereira, Neftalí L. V. Carreño, Marcelo Ornaghi Orlandi, Oscar Giordani Paniz, Silvana I. Wolke |
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| Přispěvatelé: | Univ Fed Pelotas, Univ Fed Rio Grande do Sul, Univ Magallanes, Universidade de São Paulo (USP), Universidade Estadual Paulista (Unesp) |
| Rok vydání: | 2019 |
| Předmět: |
ALGAS
chemistry.chemical_classification Algae biomass Polymers and Plastics biology Biomass 02 engineering and technology Raw material 010402 general chemistry 021001 nanoscience & nanotechnology Polysaccharide biology.organism_classification Pulp and paper industry 01 natural sciences 0104 chemical sciences Nanocellulose chemistry.chemical_compound chemistry Algae Biofuel Cellulosic ethanol Cystosphaera jacquinottii Cellulose 0210 nano-technology |
| Zdroj: | Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP Web of Science Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP |
| ISSN: | 1572-882X 0969-0239 |
| DOI: | 10.1007/s10570-019-02794-2 |
| Popis: | Made available in DSpace on 2020-12-10T16:58:29Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-10-18 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) FAPERGS/PqG 2017 Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Algae biomass is a raw material widely used by many industrial sectors, such as food production, pharmaceuticals, cosmetics, fertilizers, biofuels, and many others. Its usage is mainly due to the phycocolloids content, such as alginates, carrageenans, agar, etc. One of the polysaccharides present in this biomass, and still little explored is cellulose, an important resource with several technological applications, for example: production of nanocellulose, ultralightweight structures, drug delivery, tissue engineering, wound dressings, among others. Thus, we used the Antarctic algae Cystosphaera jacquinottii as raw material for the production of a cellulosic material combining alkaline treatment, bleaching, and freeze-drying. Fourier-transform infrared spectroscopy results revealed that the methodology employed was effective to obtain cellulose. X-ray diffraction analysis showed that the material obtained had crystallinity above 70%. Scanning electron microscopy analyses showed a highly porous morphology, consisting of cellulose nanofibers with a diameter about 32 nm. [GRAPHICS] . Univ Fed Pelotas, CDTec, Grad Program Mat Sci & Engn, Rua Gomes Carneiro 1, BR-96010610 Pelotas, RS, Brazil Univ Fed Pelotas, Lab Lipid & Bioorgan, Av Eliseu Macieu Predio 31, BR-96010900 Capao Do Ledo, RS, Brazil Univ Fed Rio Grande do Sul, Inst Chem, Av Bento Goncalves 9500, BR-91501970 Porto Alegre, RS, Brazil Univ Magallanes, Lab Macroalgas Antarticas & Subantarticas, Av Pdte Manuel Bulnes 01890, Punta Arenas 6200000, Chile Univ Sao Paulo, Chem Inst, Biochem Dept, Av Prof Lineu Prestes 748, BR-05508000 Sao Paulo, SP, Brazil Sao Paulo State Univ, Interdisciplinary Lab Ceram, IQ, Av Prof Francisco Degni 55, BR-14800060 Araraquara, SP, Brazil Sao Paulo State Univ, Interdisciplinary Lab Ceram, IQ, Av Prof Francisco Degni 55, BR-14800060 Araraquara, SP, Brazil CAPES: 001 FAPERGS/PqG 2017: 7/2551-0001 157-0 CAPES: PGCI-99999.002378/2015-09 CAPES: 88887.125421/2016-00 CNPq: 465450/2014-8 |
| Databáze: | OpenAIRE |
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