7 documents found, page 1 of 1
Bacterial cellulose green composites
Silva, Francisco Almeida Garrett SoaresOs setores de embalagem alimentar e têxtil utilizam intensivamente materiais à base do petróleo, ressaltando a necessidade urgente de explorar alternativas mais sustentáveis. A celulose bacteriana (CB), produzida por fermentação, oferece vantagens importantes em relação aos materiais mais convencionais, sendo um material biodegradável e com alto desempenho mecânico. No entanto, a CB apresenta algumas limitações...
Bacterial nanocellulose membrane as novel substrate for biomimetic structural c...
Suleimenova, Akmaral; Frasco, Manuela Faria; Silva, Francisco Almeida Garrett Soares; Gama, F. M.; Fortunato, Elvira; Sales, M. Goreti F.The development of optical biosensors based on structural colors generated by short-range ordered colloidal particles is attracting growing interest due to their non-iridescent and non-fading features. In this study, a biomimetic approach using biopolymers for the various steps of sensor construction is presented. Bacterial nanocellulose (BNC) has many foreseen applications in biomedical engineering because of ...
Development of a layered bacterial nanocellulose-PHBV composite for food packaging
Silva, Francisco Almeida Garrett Soares; Matos, Mariana; Dourado, Fernando; Reis, Maria A. M.; Branco, Pedro C.; Poças, Fátima; Gama, F. M.BACKGROUND Most of the current materials used in food packaging are synthetic and non-degradable, raising environmental issues derived from the accumulation of plastics in landfills/waterways. The food industry increasingly needs eco-friendly sustainable materials that meet the food packaging requirements. Bacterial nanocellulose (BNC), a biopolymer obtained by fermentation, offers very good mechanical properti...
Development of layered BNC composites for Food Packaging
Silva, Francisco Almeida Garrett Soares; Dourado, Fernando; Gama, F. M.; Poças, FátimaThe food industry is increasingly demanding advanced and sustainable packaging materials with improved physical, mechanical and barrier properties. The currently used materials are synthetic and non-degradable, which raises environmental concerns. Research efforts have been made in recent years towards the development of bio-based sustainable packaging materials. One of those is nanocellulose, which have a pote...
Bacterial cellulose production: valorization of wastewater and life cycle asses...
Dourado, Fernando; Forte, Ana Cristina Figueiras; Mota, André; Neto, Belmira; Ferreira, Eugénio C.; Silva, Francisco Almeida Garrett SoaresLow-cost substrates, most from agro-industrial wastes, have increasingly been exploited as nutrient sources for the fermentation of bacterial cellulose (BC), an appealing approach from an economical and environmental point of view. However, these wastes carry a very high organic load, which, while advantageous for the fermentation, generate high organic load wastewaters as well, which require proper treatment b...
Optimization of bacterial nanocellulose fermentation using lignocellulosic resi...
Silva, Francisco Almeida Garrett Soares; Carvalho, Ricardo Emanuel Silva; Ferreira, Eugénio C.; Dourado, Fernando; Poças, Maria Fátima; Gama, F. M.[Excerpt] Introduction In the paper industry, significant fraction of fibers that cannot be re‐utilized are wasted by the paper companies, which raise economic and environmental concerns. Unique properties of BNC have sustained promising applications in the biomedical field, pulp and paper, composites and foods. In order to ally the recycling of lignocellulosic residues and the production of BNC, recycled paper...
Bacterial cellulose production through hydrolysates produced with cellulosic re...
Silva, Francisco Almeida Garrett Soares; Rodrigues, Ana Cristina; Dourado, Fernando; Gama, F. M.In the paper industry, significant fraction of fibers that cannot be reutilized are wasted by the paper companies, which raise economic and environmental concerns. An increasing demand of bacterial cellulose (BC) has been noticed in the last years. In order to ally the recycling of lignocellulosic residues and the production of bacterial cellulose, Recycled paper sludge (RPS) and rejected fibers (EUR) were enzy...