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| OHARA,Andre; SANTOS,Jessika Gonçalves dos; ANGELOTTI,Joelise Alencar Figueira; BARBOSA,Paula de Paula Menezes; DIAS,Fernanda Furlan Gonçalves; BAGAGLI,Marcela Pavan; SATO,Hélia Harumi; CASTRO,Ruann Janser Soares de. |
| Abstract This study reports the use of statistical mixture design as a tool for the simultaneous production of lipase, CMCase, α-amylase, and β-glucosidase by Aspergillus niger under solid-state fermentation. Wheat bran, soybean meal, cottonseed meal, and orange peel were used as substrates, either individually or combined in different formulations, to study their synergistic or antagonistic effects on production of the enzymes. The highest lipase (323 U g-1) and CMCase (10 U g-1) activities were detected after 48 h, while the maximum activities of α-amylase (18 U g-1) and β-glucosidase (15 U g-1) occurred at 72 and 96 h, respectively. Considering the substrate formulation, the ternary mixture of wheat bran (1/3), soybean meal (1/3), and cottonseed meal... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Industrial enzymes; Solid-state fermentation; Aspergillus niger; Agroindustrial wastes; Mixture design. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612018000500131 |
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| Andreani,Cristiane L.; Torres,Douglas G. B.; Schultz,Leonardo; Carvalho,Karina Q. de; Gomes,Simone D.. |
| Attempting to associate waste treatment to the production of clean and renewable energy, this research sought to evaluate the biological production of hydrogen using wastewater from the cassava starch treatment industry, generated during the processes of extraction and purification of starch. This experiment was carried out in a continuous anaerobic reactor with a working volume of 3L, with bamboo stems as the support medium. The system was operated at a temperature of 36°C, an initial pH of 6.0 and under variations of organic load. The highest rate of hydrogen production, of 1.1 L.d-1.L-1, was obtained with application of an organic loading rate of 35 g.L-1.d-1, in terms of total sugar content and hydraulic retention time of 3h, with a prevalence of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fixed bed reactor; Agroindustrial wastes; Fermentation processes. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162015000300578 |
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