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Immerzeel P, Fiskari J. Synergism of enzymes in chemical pulp bleaching from an industrial point of view‐A critical review. CAN J CHEM ENG 2022. [DOI: 10.1002/cjce.24374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Peter Immerzeel
- Mid Sweden University, Fibre Science and Communication Network Sundsvall Sweden
| | - Juha Fiskari
- Mid Sweden University, Fibre Science and Communication Network Sundsvall Sweden
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de Sales AN, de Souza AC, Moutta RDO, Ferreira-Leitão VS, Schwan RF, Dias DR. Use of lignocellulose biomass for endoxylanase production by Streptomyces termitum. Prep Biochem Biotechnol 2017; 47:505-512. [PMID: 28045607 DOI: 10.1080/10826068.2016.1275015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Actinobacteria isolates from Brazilian Cerrado soil were evaluated for their ability to produce enzymes of the cellulolytic and xylanolytic complex using lignocellulose residual biomass. Preliminary semiquantitative tests, made in Petri plates containing carboxymethylcellulose and beechwood xylan, indicated 11 potential species producing enzymes, all belonging to the genus Streptomyces. The species were subsequently grown in pure substrates in submerged fermentation and analyzed for the production of enzymes endoglucanase, β-glucosidase, endoxylanase, and β-xylosidase. The best results were obtained for endoxylanase enzyme production with Streptomyces termitum(UFLA CES 93). The strain was grown on lignocellulose biomass (bagasse, straw sugarcane, and cocoa pod husk) that was used in natura or acid pretreated. The medium containing sugarcane bagasse in natura favored the production of the endoxylanase that was subsequently optimized through an experimental model. The highest enzyme production 0.387 U mL-1, (25.8 times higher), compared to the lowest value obtained in one of the trials, was observed when combining 2.75% sugar cane bagasse and 1.0 g L-1 of yeast extract to the alkaline medium (pH 9.7). This is the first study using S. termitum as a producer of endoxylanase.
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Affiliation(s)
- Alenir Naves de Sales
- a Department of Biology , Federal University of Lavras, Campus Universitário , Lavras , Minas Gerais , Brazil
| | - Angélica Cristina de Souza
- a Department of Biology , Federal University of Lavras, Campus Universitário , Lavras , Minas Gerais , Brazil
| | - Rondinele de Oliveira Moutta
- b Catalysis Division, Biocatalysis Laboratory , National Institute of Technology, Ministry of Science, Technology and Innovation, Rio de Janeiro , Rio de Janeiro , Brazil.,c Department of Biochemistry , Federal University of Rio de Janeiro, Rio de Janeiro , Rio de Janeiro , Brazil
| | - Viridiana Santana Ferreira-Leitão
- b Catalysis Division, Biocatalysis Laboratory , National Institute of Technology, Ministry of Science, Technology and Innovation, Rio de Janeiro , Rio de Janeiro , Brazil.,c Department of Biochemistry , Federal University of Rio de Janeiro, Rio de Janeiro , Rio de Janeiro , Brazil
| | - Rosane Freitas Schwan
- a Department of Biology , Federal University of Lavras, Campus Universitário , Lavras , Minas Gerais , Brazil
| | - Disney Ribeiro Dias
- d Department of Food Science , Federal University of Lavras, Campus Universitário , Lavras , Mines Gerais , Brazil
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