Busca avançada
Ano de início
Entree
(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Komagataeibacter rhaeticus grown in sugarcane molasses-supplemented culture medium as a strategy for enhancing bacterial cellulose production

Texto completo
Autor(es):
Mostrar menos -
Machado, Rachel T. A. [1] ; Meneguin, Andrea Bagliotti [2, 1] ; Sabio, Rafael Miguel [1] ; Franco, Douglas Faza [3] ; Antonio, Selma G. [3] ; Gutierrez, Junkal [4, 5] ; Tercjak, Agnieszka [4] ; Berretta, Andresa A. [6] ; Ribeiro, Sidney J. L. [3] ; Lazarini, Silmara C. [1] ; Lustri, Wilton R. [1] ; Barud, Hernane S. [1]
Número total de Autores: 12
Afiliação do(s) autor(es):
[1] Univ Araraquara, UNIARA, BR-14801320 Araraquara, SP - Brazil
[2] Univ Fed Piaui UFPI, Ctr Ciencias Nat CNN, Interdisciplinary Lab Adv Mat, BR-64049550 Teresina, PI - Brazil
[3] Sao Paulo State Univ UNESP, Inst Chem, BR-14800060 Araraquara, SP - Brazil
[4] Univ Basque Country, UPV EHU, Fac Engn, Grp Mat Technol GMT, Dept Chem & Environm Engn, Plaza Europa 1, Donostia San Sebastian 20018 - Spain
[5] Univ Basque Country, UPV EHU, Fac Engn Vitoria Gasteiz, C Nieves Cano 12, Vitoria 01006 - Spain
[6] Apis Flora Ind Coml Ltda, Lab Pesquisa Desenvolvimento & Inovacao, BR-14020670 Ribeirao Preto, SP - Brazil
Número total de Afiliações: 6
Tipo de documento: Artigo Científico
Fonte: INDUSTRIAL CROPS AND PRODUCTS; v. 122, p. 637-646, OCT 15 2018.
Citações Web of Science: 5
Resumo

Komagataeibacter rhaeticus, a bacterium isolated from Kombucha tea, was used to produce bacterial cellulose (BC) through its cultivation in a static sugarcane molasses (SCM) supplemented-culture medium (totally or partially), as an alternative carbon source. BC membranes were characterized by different physicochemical analysis using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), field emission gun scanning electron microscopy (FEG-SEM), thermogravimetry analysis (TGA) and PeakForce quantitative nano mechanics atomic force microscopy (PeakForce (QNM-AFM)). FTIR, XRD and TGA results suggest great similarity among all membranes produced by distinct culture media. Although the glucose (F1) and SCM (F6) media presented the lowest BC yield, all SCM-supplemented culture media (from F2 to F5) showed BC yield values similar to the HS culture medium (F0). FEG-SEM analysis showed that as higher SCM concentrations on culture media higher dense nanofibers network could be prepared. Quantitative nanomechanical results obtained by AFM technique corroborate FEG-SEM analysis besides show smoother and more flexible BC membranes as a function of the increasing of the SCM concentrations. The modification of the carbon source of the culture medium with an important by-product of Brazilian agroindustry appears as a viable alternative to reduce cost of BC production (of up to 20.06%) besides increase the possibilities of industrial scale BC preparation. (AU)

Processo FAPESP: 11/51725-0 - Desenvolvimento e avaliação de biocurativos obtidos a partir de celulose bacteriana e extrato padronizado de Própolis (EPP-AF) para o tratamento de queimaduras e/ou lesões de pele
Beneficiário:Hernane da Silva Barud
Linha de fomento: Auxílio à Pesquisa - Pesquisa Inovativa em Pequenas Empresas - PIPE
Processo FAPESP: 13/04948-9 - Produção e caracterização de membranas de celulose bacteriana utilizando meio de cultura estático
Beneficiário:Elina Cassia Torres
Linha de fomento: Bolsas no Brasil - Programa Capacitação - Treinamento Técnico