title: Komagataeibacter rhaeticus as an alternative bacteria for cellulose production.
abstract: A strain isolated from Kombucha tea was isolated and used as an alternative bacterium for the biosynthesis of bacterial cellulose (BC). In this study, BC generated by this novel bacterium was compared to Gluconacetobacter xylinus biosynthesized BC. Kinetic studies reveal that Komagataeibacter rhaeticus was a viable bacterium to produce BC according to yield, thickness and water holding capacity data. Physicochemical properties of BC membranes were investigated by UV-vis and Fourier transform infrared spectroscopies (FTIR), thermogravimetrical analysis (TGA) and X-ray diffraction (XRD). Additionally, scanning electron microscopy (SEM) and atomic force microscopy (AFM) were also used for morphological characterization. Mechanical properties at nano and macroscale were studied employing PeakForce quantitative nanomechanical property mapping (QNM) and dynamic mechanical analyzer (DMA), respectively. Results confirmed that BC membrane biosynthesized by Komagataeibacter rhaeticus had similar physicochemical, morphological and mechanical properties than BC membrane produced by Gluconacetobacter xylinus and can be widely used for the same applications.
authors: Laboratório de Biopolimeros e Biomateriais (BIOPOLMAT), Centro Universitário de Araraquara, Araraquara, 14801-340 São Paulo, Brazil.
authors: Rachel T A
authors: RTA
authors: Machado
authors: Group 'Materials+Technologies' (GMT), Department of Chemical and Environmental Engineering, Engineering College of Gipuzkoa, University of the Basque Country (UPV/EHU), Plaza Europa 1, 20018 Donostia-San Sebastián, Spain.
authors: Junkal
authors: J
authors: Gutierrez
authors: Group 'Materials+Technologies' (GMT), Department of Chemical and Environmental Engineering, Engineering College of Gipuzkoa, University of the Basque Country (UPV/EHU), Plaza Europa 1, 20018 Donostia-San Sebastián, Spain.
authors: Agnieszka
authors: A
authors: Tercjak
authors: Laboratório de Biopolimeros e Biomateriais (BIOPOLMAT), Centro Universitário de Araraquara, Araraquara, 14801-340 São Paulo, Brazil.
authors: Eliane
authors: E
authors: Trovatti
authors: Laboratório de Pesquisa, Desenvolvimento & Inovação, Apis Flora Ind. Coml. Ltda, Ribeirão Preto, 14020-670 São Paulo, Brazil.
authors: Fernanda G M
authors: FGM
authors: Uahib
authors: Laboratório de Pesquisa, Desenvolvimento & Inovação, Apis Flora Ind. Coml. Ltda, Ribeirão Preto, 14020-670 São Paulo, Brazil.
authors: Gabriela de Padua
authors: GP
authors: Moreno
authors: Laboratório de Pesquisa, Desenvolvimento & Inovação, Apis Flora Ind. Coml. Ltda, Ribeirão Preto, 14020-670 São Paulo, Brazil.
authors: Andresa P
authors: AP
authors: Nascimento
authors: Laboratório de Pesquisa, Desenvolvimento & Inovação, Apis Flora Ind. Coml. Ltda, Ribeirão Preto, 14020-670 São Paulo, Brazil.
authors: Andresa A
authors: AA
authors: Berreta
authors: Institute of Chemistry-São Paulo StateUniversity-UNESP, 14800-060 Araraquara-SP, Brazil.
authors: Sidney J L
authors: SJL
authors: Ribeiro
authors: Laboratório de Biopolimeros e Biomateriais (BIOPOLMAT), Centro Universitário de Araraquara, Araraquara, 14801-340 São Paulo, Brazil; Institute of Chemistry-São Paulo StateUniversity-UNESP, 14800-060 Araraquara-SP, Brazil. Electronic address: hernane.barud@gmail.com.
authors: Hernane S
authors: HS
authors: Barud
mesh_terms: D016947:Acetobacteraceae / Q000737:chemistry / Q000378:metabolism*; D002482:Cellulose / Q000096:biosynthesis* / Q000737:chemistry; D011135:Polysaccharides, Bacterial / Q000096:biosynthesis* / Q000737:chemistry
chemical_list: D011135:Polysaccharides, Bacterial; D002482:Cellulose
keywords: 3D network structure; Bacterial cellulose; Cellulose production; Komagataeibacter rhaeticus; Mechanical properties