Utilization of low-cost substrates for the production of nystose by Bacillus subtilis natto cct 7712

• Autor(a) principal: Santos, Dieyssi Alves dos
• Data de Publicação: 2016
• Outros Autores: Baldo, Cristiani, Borsato, Dionísio, Celligoi, Maria Antonia Pedrine Colabone
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Acta scientiarum. Technology (Online)
• Texto Completo: http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/28704
• topic: Bacillus subtilis natto CT 7712; commercial sucrose; nystose; sugarcane juice; sugarcane molasses; Biotecnologia

Current analysis describes the capacity of Bacillus subtilis natto CCT 7712 to produce high amounts of nystose by low-cost substrates available in Brazil, such as commercial sucrose, sugarcane molasses and sugarcane juice. Optimization resulted in a maximum production of 179.77 g L-1 of nystose, averaging 7.49 g L-1 hour-1 of productivity and a 71.73% yield in a medium with 400 g L-1of commercial sucrose and 0.8 g L-1 of MnSO4. Fermentations with sugarcane molasses and sugarcane juice also resulted in a satisfactory production reaching 97.93 and 42.58 g L-1 nystose, respectively. High nystose production in a medium with sugarcane derivatives suggests submerged fermentation with Bacillus subtillis natto CT 7712 as a promising strategy to produce nystose at industrial level.