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| Santos,Édilla Ribeiro dos; Teles,Zozilene Nascimento Santos; Campos,Núria Mariana; Souza,Diogo Angeli Jacinto de; Bispo,Aline Simões da Rocha; Nascimento,Rodrigo Pires do. |
| Approximately 1.5 trillion tons are the estimated yearly biomass production, making it an essentially unlimited source of raw material for environmentally friendly and biocompatible products transformed by microorganism, specially fungi and actinomycetes. Several lignocellulosic residues, such as sisal waste and sugarcane bagasse contain starch in their structures which could become important sources for the production of amylases. This study evaluated the production of amylolytic enzymes using Streptomyces sp. SLBA-08 strain, isolated from a semi-arid soil, according to their ability to grow on soluble starch as the sole carbon source. The effect of the carbon source (sisal waste and sugarcane bagasse) on α-amylase production was studied using submerged... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Α-amylases; Sugarcane bagasse; Sisal waste; Streptomyces sp. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000500020 |
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| Marques,Daniela A. Viana; Cunha,Márcia N. Carneiro; Araújo,Janete M.; Lima-Filho,José L.; Converti,Attilio; Pessoa-Jr,Adalberto; Porto,Ana L. Figueiredo. |
| Clavulanic acid is a β-lactam antibiotic which has a potent β-lactamase inhibiting activity. In order to optimize its production by the new isolate Streptomyces DAUFPE 3060, the influence of two independent variables, temperature and soybean flour concentration, on clavulanic acid and biomass concentrations was investigated in 250 mL-Erlenmeyers according to a 2² central composite design. To this purpose, temperature and soybean flour (SF) concentration were varied in the ranges 26-34°C and 10-50 g/L, respectively, and the results evaluated utilizing the Response Surface Methodology. The experimental maximum production of clavulanic acid (629 mg/L) was obtained at 32°C and 40 g/L SF after 48 h, while the maximum biomass concentration (3.9 g/L) at 30°C and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Clavulanic acid; Response surface methodology; Production; Optimization; Streptomyces sp. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000200030 |
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