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Jacomini D, Bussler L, da-Conceição Silva JL, Maller A, Kadowaki MK, Simão RDCG. Biopolishing of denim by the recombinant xylanase II of Caulobacter crescentus. Braz J Microbiol 2023; 54:1559-1564. [PMID: 37440124 PMCID: PMC10484820 DOI: 10.1007/s42770-023-01056-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Accepted: 06/28/2023] [Indexed: 07/14/2023] Open
Abstract
Denim, also known as jeans, is a fabric made up of braided cotton threads dyed indigo blue, whose fibers contain approximately 10% of non-cellulosic impurities that reduce its commercial value. Microbial enzymes can act in the cleaning and desizing processes of jeans, improving their color, softness, and covering capacity. The recombinant Xylanase II (XynA2) from the aquatic bacterial Caulobacter crescentus (C. crescentus), previously characterized in terms of its biochemical features, was applied to the biotreatment of jeans to clean and degum it. The biotreatment performance was evaluated in terms of tissue weight loss, amount of reducing sugars released and analysis of the images obtained by scanning electron microscopy (SEM). Biotreated tissues, at 12 and 24 h, showed a dry weight loss of 4.9 and 6.6%, respectively. The reducing sugars amount released after XynA2 action over the jean's fibers showed statistically significant values when compared with each other and with their respective controls. SEM images clearly shown that the fabric treated for 12 h presented a smooth and polished surface, while the fabric treated for 24 h showed the cotton fibers broken, displaying severe damage to the textile. The best treatment for the jeans was in the presence of 1 U mg-1 XynA2 at pH 8 and 60 °C during 12 h. In conclusion, XynA2 of C. crescentus was satisfactorily applied for the biopolishing of denim jeans being a more sustainable alternative to the use of chemical and abrasive processes to obtain the same effects.
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Affiliation(s)
- Débora Jacomini
- Centro de Ciências Médicas e Farmacêuticas - CCMF, Laboratório de Bioquímica Molecular - LaBioqMol, Universidade Estadual do Oeste do Paraná- UNIOESTE, Rua Universitária, 2069 -, Cascavel, PR, 85814-110, Brazil
| | - Larissa Bussler
- Centro de Ciências Exatas e Tecnológicas, Laboratório de Bioquímica Molecular- LaBioqMol, Universidade Estadual do Oeste do Paraná, Paraná, Cascavel, Brazil
| | - José Luis da-Conceição Silva
- Centro de Ciências Médicas e Farmacêuticas - CCMF, Laboratório de Bioquímica Molecular - LaBioqMol, Universidade Estadual do Oeste do Paraná- UNIOESTE, Rua Universitária, 2069 -, Cascavel, PR, 85814-110, Brazil
| | - Alexandre Maller
- Centro de Ciências Médicas e Farmacêuticas - CCMF, Laboratório de Bioquímica Molecular - LaBioqMol, Universidade Estadual do Oeste do Paraná- UNIOESTE, Rua Universitária, 2069 -, Cascavel, PR, 85814-110, Brazil
| | - Marina Kimiko Kadowaki
- Centro de Ciências Médicas e Farmacêuticas - CCMF, Laboratório de Bioquímica Molecular - LaBioqMol, Universidade Estadual do Oeste do Paraná- UNIOESTE, Rua Universitária, 2069 -, Cascavel, PR, 85814-110, Brazil
| | - Rita de Cássia Garcia Simão
- Centro de Ciências Médicas e Farmacêuticas - CCMF, Laboratório de Bioquímica Molecular - LaBioqMol, Universidade Estadual do Oeste do Paraná- UNIOESTE, Rua Universitária, 2069 -, Cascavel, PR, 85814-110, Brazil.
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Jacomini D, Bussler L, Corrêa JM, Kadowaki MK, Maller A, da-Conceição Silva JL, Simão RDCG. Cloning, expression and characterization of C. crescentus xynA2 gene and application of Xylanase II in the deconstruction of plant biomass. Mol Biol Rep 2020; 47:4427-4438. [PMID: 32424521 DOI: 10.1007/s11033-020-05507-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Accepted: 05/08/2020] [Indexed: 11/24/2022]
Abstract
Biotechnology offers innovative alternatives for industrial bioprocesses mainly because it uses enzymes that biodegrade the hemicellulose releasing fermentable sugars. Caulobacter crescentus (C. crescentus) has seven genes responsible for xylanolytic cleavage, 5 to β-xylosidases (EC 3.2.1.37) and 2 for endoxylanases, like xynA2 (CCNA_03137) that encodes Xylanase II (EC 3.2.1.8) of the glycohydrolases-GH10 group. The xynA2 gene was amplified by PCR, cloned into the pTrcHisA vector e efficiently overexpressed in E. coli providing a His-tag fusion protein. Recombinant xylanase (XynA2) was purified by affinity chromatography using a nickel sepharose column and exhibited a single 43 kDa band on SDS-PAGE gel. XynA2 showed an optimum alkaline pH (8) and stability at alkaline pH for 24 h. Although C. crescentus is mesophilic, XynA2 has optimum temperature of 60 °C and is thermo-resistance at 65 °C. XynA maintains 66% of the enzymatic activity at high temperatures (90 °C) without being denatured.The enzyme displayed a xylanolitic activity free of cellulase to xylan from beechwood and it was not inhibited in the presence of 50 μmol mL-1 of xylose. In addition, dithiothreitol (DTT) induced XynA2 activity, as it improved its kinetic parameters by lowering the KM (5.78 μmol mL-1) and increasing the KCat/KM ratio (1.63 U s-1). Finally, C. crescentus XynA2 efficiently hydrolyzed corn straw with high release of reducing sugars that can be applied in different branches of the industry.
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Affiliation(s)
- Débora Jacomini
- Laboratório de Bioquímica Molecular, Centro de Ciências Exatas e Tecnológicas, Universidade Estadual do Oeste do Paraná, Cascavel,, Paraná, 85814-110, Brazil
| | - Larissa Bussler
- Laboratório de Bioquímica Molecular, Centro de Ciências Exatas e Tecnológicas, Universidade Estadual do Oeste do Paraná, Cascavel,, Paraná, 85814-110, Brazil
| | - Juliana Moço Corrêa
- Laboratório de Bioquímica Molecular, Centro de Ciências Médicas e Farmacêuticas, Universidade Estadual do Oeste do Paraná, Rua Universitária, 2069, Cascavel, PR, 85814-110, Brazil
| | - Marina Kimiko Kadowaki
- Laboratório de Bioquímica Molecular, Centro de Ciências Médicas e Farmacêuticas, Universidade Estadual do Oeste do Paraná, Rua Universitária, 2069, Cascavel, PR, 85814-110, Brazil
| | - Alexandre Maller
- Laboratório de Bioquímica Molecular, Centro de Ciências Médicas e Farmacêuticas, Universidade Estadual do Oeste do Paraná, Rua Universitária, 2069, Cascavel, PR, 85814-110, Brazil
| | - José Luis da-Conceição Silva
- Laboratório de Bioquímica Molecular, Centro de Ciências Médicas e Farmacêuticas, Universidade Estadual do Oeste do Paraná, Rua Universitária, 2069, Cascavel, PR, 85814-110, Brazil
| | - Rita de Cássia Garcia Simão
- Laboratório de Bioquímica Molecular, Centro de Ciências Exatas e Tecnológicas, Universidade Estadual do Oeste do Paraná, Cascavel,, Paraná, 85814-110, Brazil. .,Laboratório de Bioquímica Molecular, Centro de Ciências Médicas e Farmacêuticas, Universidade Estadual do Oeste do Paraná, Rua Universitária, 2069, Cascavel, PR, 85814-110, Brazil.
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Justo PI, Corrêa JM, Maller A, Kadowaki MK, da Conceição-Silva JL, Gandra RF, Simão RDCG. Analysis of the xynB5 gene encoding a multifunctional GH3-BglX β-glucosidase-β-xylosidase-α-arabinosidase member in Caulobacter crescentus. Antonie van Leeuwenhoek 2015; 108:993-1007. [PMID: 26264062 DOI: 10.1007/s10482-015-0552-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2015] [Accepted: 08/01/2015] [Indexed: 01/11/2023]
Abstract
The Caulobacter crescentus (NA1000) xynB5 gene (CCNA_03149) encodes a predicted β-glucosidase-β-xylosidase enzyme that was amplified by polymerase chain reaction; the product was cloned into the blunt ends of the pJet1.2 plasmid. Analysis of the protein sequence indicated the presence of conserved glycosyl hydrolase 3 (GH3), β-glucosidase-related glycosidase (BglX) and fibronectin type III-like domains. After verifying its identity by DNA sequencing, the xynB5 gene was linked to an amino-terminal His-tag using the pTrcHisA vector. A recombinant protein (95 kDa) was successfully overexpressed from the xynB5 gene in E. coli Top 10 and purified using pre-packed nickel-Sepharose columns. The purified protein (BglX-V-Ara) demonstrated multifunctional activities in the presence of different substrates for β-glucosidase (pNPG: p-nitrophenyl-β-D-glucoside) β-xylosidase (pNPX: p-nitrophenyl-β-D-xyloside) and α-arabinosidase (pNPA: p-nitrophenyl-α-L-arabinosidase). BglX-V-Ara presented an optimal pH of 6 for all substrates and optimal temperature of 50 °C for β-glucosidase and α-L-arabinosidase and 60 °C for β-xylosidase. BglX-V-Ara predominantly presented β-glucosidase activity, with the highest affinity for its substrate and catalytic efficiency (Km 0.24 ± 0.0005 mM, Vmax 0.041 ± 0.002 µmol min(-1) mg(-1) and Kcat/Km 0.27 mM(-1) s(-1)), followed by β-xylosidase (Km 0.64 ± 0.032 mM, Vmax 0.055 ± 0.002 µmol min(-1) mg(-1) and Kcat/Km 0.14 mM(-1)s(-1)) and finally α-L-arabinosidase (Km 1.45 ± 0.05 mM, Vmax 0.091 ± 0.0004 µmol min(-1) mg(-1) and Kcat/Km 0.1 mM(-1) s(-1)). To date, this is the first report to demonstrate the characterization of a GH3-BglX family member in C. crescentus that may have applications in biotechnological processes (i.e., the simultaneous saccharification process) because the multifunctional enzyme could play an important role in bacterial hemicellulose degradation.
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Affiliation(s)
- Priscila Innocenti Justo
- Laboratório de Bioquímica Molecular, Centro de Ciências Médicas e Farmacêuticas, Universidade Estadual do Oeste do Paraná, Rua Universitária, 2069, Cascavel, PR, 85814-110, Brazil
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Graciano L, Corrêa JM, Vieira FGN, Bosetto A, Loth EA, Kadowaki MK, Gandra RF, Simão RDCG. Cloning and Expression of the xynA1 Gene Encoding a Xylanase of the GH10 Group in Caulobacter crescentus. Appl Biochem Biotechnol 2015; 175:3915-29. [DOI: 10.1007/s12010-015-1560-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2014] [Accepted: 03/04/2015] [Indexed: 10/23/2022]
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