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Elgharbi F, Salem K, Elbedoui M, Hmida-Sayari A. High-Molecular-Weight Xylanase from B. pumilus US570 Strain: Purification, Characterization and Application in Banana and Orange Peels Hydrolysis and Breadmaking. Appl Biochem Biotechnol 2024:10.1007/s12010-024-04866-x. [PMID: 38393579 DOI: 10.1007/s12010-024-04866-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/12/2024] [Indexed: 02/25/2024]
Abstract
New xylanase (XylUS570) was purified from the Bacillus pumilus US570 strain. It has a molecular mass of about 232 kDa. This is the first report on the highest molecular weight monomeric xylanase produced by bacteria. The optimum pH and temperature recorded for enzyme activity were 7 and 55 °C, respectively with a half-life time of 10 min at 60 °C. At 37 °C, the enzyme retains more than 50% of its activity at a pH ranging from 6 to 9.5 for 24 h. The XylUS570 exhibited a high activity on xylan, but no activity was detected for cellulosic substrates. The Vmax and Km values exhibited by the purified enzyme on beechwood xylan were 37.05 U mL-1 and 4.189 mg mL-1, respectively. The XylUS570 was used in banana and orange peels hydrolysis and showed potential efficiency to liberate reducing sugars. It could be a good candidate for bio-ethanol production from fruit waste. The purified enzyme was used also as an additive in breadmaking. A decrease in water absorption, an increase in dough rising and improvements in volume and specific volume of the bread were recorded.
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Affiliation(s)
- Fatma Elgharbi
- Laboratoire de Biotechnologie Microbienne et d'Ingénierie des Enzymes (LBMIE), Centre de Biotechnologie de Sfax (CBS), Université de Sfax, Route de Sidi Mansour Km 6, BP "1177", 3018, Sfax, Tunisie.
| | - Karima Salem
- Laboratoire de Biotechnologie Microbienne et d'Ingénierie des Enzymes (LBMIE), Centre de Biotechnologie de Sfax (CBS), Université de Sfax, Route de Sidi Mansour Km 6, BP "1177", 3018, Sfax, Tunisie
| | - Maissa Elbedoui
- Laboratoire de Biotechnologie Microbienne et d'Ingénierie des Enzymes (LBMIE), Centre de Biotechnologie de Sfax (CBS), Université de Sfax, Route de Sidi Mansour Km 6, BP "1177", 3018, Sfax, Tunisie
| | - Aïda Hmida-Sayari
- Laboratoire de Biotechnologie Microbienne et d'Ingénierie des Enzymes (LBMIE), Centre de Biotechnologie de Sfax (CBS), Université de Sfax, Route de Sidi Mansour Km 6, BP "1177", 3018, Sfax, Tunisie
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Utilization of Agroresidues for the Production of Xylanase by Bacillus safensis XPS7 and Optimization of Production Parameters. FERMENTATION 2022. [DOI: 10.3390/fermentation8050221] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The main objective of this study was to investigate the utilization of various agro-industrial wastes such as wheat bran, wheat husk, wheat straw, peanut powder, pomace, corn cobs, rice straw, sawdust and sugarcane bagasse for the cost-effective production of xylanase by Bacillus safensis XPS7 using the one-variable-at-a-time approach. A number of bacterial strains were isolated from different locations in the cold desert region of Himachal Pradesh, India. Among these, the hyperproducing strain designated as XPS7 was selected for optimized production of xylanase and identified as B. safensis based on 16S rDNA gene analysis. B. safensis XPS7 produced the maximum xylanase (141.28 U/mL) at 45 °C, pH 9, 24 h incubation time, 2% (w/v) wheat straw and wheat bran mixture as carbon source and 1.5% (w/v) ammonium nitrate as the nitrogen source in modified Riviere’s medium. The results showed that the combination of wheat straw and wheat bran proved to be a cheap and abundant source for the hyper production of xylanase and can be used as an inexpensive base (carbon source) for large scale industrial production of enzymes. In addition, the use of waste for the economic production of enzymes will also help to minimize the environmental problems associated with the disposal of agro-industrial waste.
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Proteomic perspectives on thermotolerant microbes: an updated review. Mol Biol Rep 2021; 49:629-646. [PMID: 34671903 DOI: 10.1007/s11033-021-06805-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 10/04/2021] [Indexed: 10/20/2022]
Abstract
INTRODUCTION Thermotolerant microbes are a group of microorganisms that survive in elevated temperatures. The thermotolerant microbes, which are found in geothermal heat zones, grow at temperatures of or above 45°C. The proteins present in such microbes are optimally active at these elevated temperatures. Hence, therefore, serves as an advantage in various biotechnological applications. In the last few years, scientists have tried to understand the molecular mechanisms behind the maintenance of the structural integrity of the cell and to study the stability of various thermotolerant proteins at extreme temperatures. Proteomic analysis is the solution for this search. Applying novel proteomic tools determines the proteins involved in the thermostability of microbes at elevated temperatures. METHODS Advanced proteomic techniques like Mass spectrometry, nano-LC-MS, protein microarray, ICAT, iTRAQ, and SILAC could enable the screening and identification of novel thermostable proteins. RESULTS This review provides up-to-date details on the protein signature of various thermotolerant microbes analyzed through advanced proteomic tools concerning relevant research articles. The protein complex composition from various thermotolerant microbes cultured at different temperatures, their structural arrangement, and functional efficiency of the protein was reviewed and reported. CONCLUSION This review provides an overview of thermotolerant microbes, their enzymes, and the proteomic tools implemented to characterize them. This article also reviewed a comprehensive view of the current proteomic approaches for protein profiling in thermotolerant microbes.
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Werle LB, Abaide ER, Felin TH, Kuhn KR, Tres MV, Zabot GL, Kuhn RC, Jahn SL, Mazutti MA. Gibberellic acid production from Gibberella fujikuroi using agro-industrial residues. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2020. [DOI: 10.1016/j.bcab.2020.101608] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Optimization of Xylanase Production from Aspergillus foetidus in Soybean Residue. Enzyme Res 2018; 2018:6597017. [PMID: 29850226 PMCID: PMC5925104 DOI: 10.1155/2018/6597017] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 02/15/2018] [Accepted: 02/25/2018] [Indexed: 11/29/2022] Open
Abstract
Enzymatic hydrolysis is an important but expensive step in the process to obtain enzyme derived products. Thus, the production of efficient enzymes is of great interest for this biotechnological application. The production of xylanase by Aspergillus foetidus in soybean residues was optimized using 2 × 23 factorial designs. The experimental data was fitted into a polynomial model for xylanase activity. Statistical analyses of the results showed that variables pH and the interaction of pH and temperature had influenced the production of xylanase, with the best xylanase production level (13.98 U/mL) occurring at fermentation for 168 hours, pH 7.0, 28°C, and 120 rpm.
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Walia A, Guleria S, Mehta P, Chauhan A, Parkash J. Microbial xylanases and their industrial application in pulp and paper biobleaching: a review. 3 Biotech 2017; 7:11. [PMID: 28391477 PMCID: PMC5385172 DOI: 10.1007/s13205-016-0584-6] [Citation(s) in RCA: 144] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 12/02/2016] [Indexed: 10/25/2022] Open
Abstract
Xylanases are hydrolytic enzymes which cleave the β-1, 4 backbone of the complex plant cell wall polysaccharide xylan. Xylan is the major hemicellulosic constituent found in soft and hard food. It is the next most abundant renewable polysaccharide after cellulose. Xylanases and associated debranching enzymes produced by a variety of microorganisms including bacteria, actinomycetes, yeast and fungi bring hydrolysis of hemicelluloses. Despite thorough knowledge of microbial xylanolytic systems, further studies are required to achieve a complete understanding of the mechanism of xylan degradation by xylanases produced by microorganisms and their promising use in pulp biobleaching. Cellulase-free xylanases are important in pulp biobleaching as alternatives to the use of toxic chlorinated compounds because of the environmental hazards and diseases caused by the release of the adsorbable organic halogens. In this review, we have focused on the studies of structural composition of xylan in plants, their classification, sources of xylanases, extremophilic xylanases, modes of fermentation for the production of xylanases, factors affecting xylanase production, statistical approaches such as Plackett Burman, Response Surface Methodology to enhance xylanase production, purification, characterization, molecular cloning and expression. Besides this, review has focused on the microbial enzyme complex involved in the complete breakdown of xylan and the studies on xylanase regulation and their potential industrial applications with special reference to pulp biobleaching, which is directly related to increasing pulp brightness and reduction in environmental pollution.
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Affiliation(s)
- Abhishek Walia
- Department of Microbiology, DAV University, Jalandhar, Punjab 144012 India
| | - Shiwani Guleria
- Department of Microbiology, DAV University, Jalandhar, Punjab 144012 India
| | - Preeti Mehta
- Centre for Advance Bioenergy Research, Research and Development Centre, Indian Oil Corporation Limited, Sector-13, Faridabad, 121007 India
| | - Anjali Chauhan
- Department of Microbiology, Dr. YSPUHF, Nauni, Solan, 173230 India
| | - Jyoti Parkash
- School of Basic and Applied Sciences, Central University of Punjab, Bathinda, Punjab 151001 India
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Extracellular expression of alkali tolerant xylanase from Bacillus subtilis Lucky9 in E. coli and application for xylooligosaccharides production from agro-industrial waste. Int J Biol Macromol 2017; 96:249-256. [DOI: 10.1016/j.ijbiomac.2016.11.032] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 11/02/2016] [Accepted: 11/03/2016] [Indexed: 01/11/2023]
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Loman AA, Ju LK. Soybean carbohydrate as fermentation feedstock for production of biofuels and value-added chemicals. Process Biochem 2016. [DOI: 10.1016/j.procbio.2016.04.011] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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9
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Biochemical characterization of an acidophilic β-mannanase from Gloeophyllum trabeum CBS900.73 with significant transglycosylation activity and feed digesting ability. Food Chem 2016; 197:474-81. [DOI: 10.1016/j.foodchem.2015.10.115] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Revised: 09/06/2015] [Accepted: 10/24/2015] [Indexed: 02/05/2023]
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Zhang H, Sang Q. Production and extraction optimization of xylanase and β-mannanase by Penicillium chrysogenum QML-2 and primary application in saccharification of corn cob. Biochem Eng J 2015. [DOI: 10.1016/j.bej.2015.02.014] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Molecular characterization of a new alkaline-tolerant xylanase from Humicola insolens Y1. BIOMED RESEARCH INTERNATIONAL 2015; 2015:149504. [PMID: 25629035 PMCID: PMC4299769 DOI: 10.1155/2015/149504] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Accepted: 12/20/2014] [Indexed: 11/28/2022]
Abstract
An endo-1,4-β-xylanase-encoding gene, xyn11B, was cloned from the thermophilic fungus Humicola insolens Y1. The gene encodes a multimodular xylanase that consists of a typical hydrophobic signal sequence, a catalytic domain of glycoside hydrolase (GH) family 11, a glycine-rich linker, and a family 1 carbohydrate binding module (CBM1). Deduced Xyn11B shares the highest identity of 74% with a putative xylanase from Podospora anserina S mat+. Recombinant Xyn11B was successfully expressed in Pichia pastoris and purified to electrophoretic homogeneity. Xyn11B had a high specific activity of 382.0 U mg−1 towards beechwood xylan and showed optimal activity at pH 6.0 and 50°C. Distinct from most reported acidic fungal xylanases, Xyn11B was alkaline-tolerant, retaining 30.7% of the maximal activity at pH 9.0. The Km and Vmax values for beechwood xylan were 2.2 mg mL−1 and 462.8 μmol min−1 mg−1, respectively. The enzyme exhibited a wider substrate specificity and produced a mixture of xylooligosaccharides. All these favorable enzymatic properties make Xyn11B attractive for potential applications in various industries.
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Yu W, Liu W, Huang H, Zheng F, Wang X, Wu Y, Li K, Xie X, Jin Y. Application of a novel alkali-tolerant thermostable DyP-type peroxidase from Saccharomonospora viridis DSM 43017 in biobleaching of eucalyptus kraft pulp. PLoS One 2014; 9:e110319. [PMID: 25333297 PMCID: PMC4204856 DOI: 10.1371/journal.pone.0110319] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Accepted: 09/12/2014] [Indexed: 11/19/2022] Open
Abstract
Saccharomonospora viridis is a thermophilic actinomycete that may have biotechnological applications because of its dye decolorizing activity, though the enzymatic oxidative system responsible for this activity remains elusive. Bioinformatic analysis revealed a DyP-type peroxidase gene in the genome of S. viridis DSM 43017 with sequence similarity to peroxidase from dye-decolorizing microbes. This gene, svidyp, consists of 1,215 bp encoding a polypeptide of 404 amino acids. The gene encoding SviDyP was cloned, heterologously expressed in Escherichia coli, and then purified. The recombinant protein could efficiently decolorize several triarylmethane dyes, anthraquinonic and azo dyes under neutral to alkaline conditions. The optimum pH and temperature for SviDyP was pH 7.0 and 70°C, respectively. Compared with other DyP-type peroxidases, SviDyP was more active at high temperatures, retaining>63% of its maximum activity at 50-80°C. It also showed broad pH adaptability (>35% activity at pH 4.0-9.0) and alkali-tolerance (>80% activity after incubation at pH 5-10 for 1 h at 37°C), and was highly thermostable (>60% activity after incubation at 70°C for 2 h at pH 7.0). SviDyP had an accelerated action during the biobleaching of eucalyptus kraft pulp, resulting in a 21.8% reduction in kappa number and an increase of 2.98% (ISO) in brightness. These favorable properties make SviDyP peroxidase a promising enzyme for use in the pulp and paper industries.
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Affiliation(s)
- Wangning Yu
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing, PR China
| | - Weina Liu
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing, PR China
| | - Huoqing Huang
- Feed Research Institute Chinese Academy of Agricultural Sciences, Beijing, PR China
| | - Fei Zheng
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing, PR China
| | - Xiaoyu Wang
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing, PR China
| | - Yuying Wu
- College of Materials Science and Technology, Beijing Forestry University, Beijing, PR China
| | - Kangjia Li
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing, PR China
| | - Xiangming Xie
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing, PR China
| | - Yi Jin
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing, PR China
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Shanmugaprakash M, Kirthika J, Ragupathy J, Nilanee K, Manickam A. Statistical based media optimization and production of naringinase using Aspergillus brasiliensis 1344. Int J Biol Macromol 2013; 64:443-52. [PMID: 24380816 DOI: 10.1016/j.ijbiomac.2013.12.033] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Revised: 12/03/2013] [Accepted: 12/19/2013] [Indexed: 10/25/2022]
Abstract
Statistics based optimization, Plackett-Burman design (PBD) and response surface methodology (RSM) were employed to screen and optimize the media components for the production of naringinase from Aspergillus brasiliensis MTCC 1344, using solid state fermentation. Cassava waste (CW) was used as both the solid support and carbon source for the growth of A. brasiliensis. Based on the positive influence of the Pareto chart obtained from PBD on naringinase activity, three media components--maltose, peptone and calcium chloride were screened. Box-Behnken design (BBD) was employed using these three factors at three levels, for further optimization, and the second order polynomial equation was derived, based on the experimental data. Derringer's desired function methodology showed that the concentrations of maltose (7.74 g/L), peptone (4.19 g/L) and calcium chloride (7.63 mM) were the optimal levels for maximal naringinase activity (889.91 U/mg) which were validated through experiments.
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Affiliation(s)
- M Shanmugaprakash
- Downstream Processing Laboratory, Department of Biotechnology, Kumaraguru College of Technology, Coimbatore 641049, India.
| | - J Kirthika
- Downstream Processing Laboratory, Department of Biotechnology, Kumaraguru College of Technology, Coimbatore 641049, India
| | - J Ragupathy
- Downstream Processing Laboratory, Department of Biotechnology, Kumaraguru College of Technology, Coimbatore 641049, India
| | - K Nilanee
- Downstream Processing Laboratory, Department of Biotechnology, Kumaraguru College of Technology, Coimbatore 641049, India
| | - A Manickam
- Downstream Processing Laboratory, Department of Biotechnology, Kumaraguru College of Technology, Coimbatore 641049, India
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Zhao L, Meng K, Shi P, Bai Y, Luo H, Huang H, Wang Y, Yang P, Yao B. A novel thermophilic xylanase from Achaetomium sp. Xz-8 with high catalytic efficiency and application potentials in the brewing and other industries. Process Biochem 2013. [DOI: 10.1016/j.procbio.2013.08.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Du Y, Shi P, Huang H, Zhang X, Luo H, Wang Y, Yao B. Characterization of three novel thermophilic xylanases from Humicola insolens Y1 with application potentials in the brewing industry. BIORESOURCE TECHNOLOGY 2013; 130:161-167. [PMID: 23306124 DOI: 10.1016/j.biortech.2012.12.067] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2012] [Revised: 12/08/2012] [Accepted: 12/10/2012] [Indexed: 06/01/2023]
Abstract
Three xylanase genes (xynA, xynB, xynC) of glycosyl hydrolase family 10 were identified in Humicola insolens Y1. The deduced protein sequences showed the highest identity of ⩽83% to known fungal xylanases and of ⩽38% with each other. Recombinant XynA-C produced in Pichia pastoris showed optimal activities at pH 6.0-7.0 and at high temperature (70-80°C), and exhibited good stability over a broad pH range and temperatures at 60°C. The gene xynC produced by H. insolens Y1 (named XynW) was similar in enzyme properties with XynC expressed by Pichia. XynA exhibited better alkaline adaptation and thermostability, and had higher catalytic efficiency and wider substrate specificity. Under simulated mashing conditions, addition of XynA-C showed better performance on filtration acceleration (37.4%) and viscosity reduction (13.5%) than Ultraflo from Novozyme. Thus the three xylanases represent good candidates for application in the brewing industry.
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Affiliation(s)
- Yanlong Du
- Key Laboratory for Feed Biotechnology of the Ministry of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
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Enzymatic clarification of fruit juices (Apple, Pineapple, and Tomato) using purified Bacillus pumilus SV-85S xylanase. BIOTECHNOL BIOPROC E 2013. [DOI: 10.1007/s12257-012-0375-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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17
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Production of Biomass-Degrading Multienzyme Complexes under Solid-State Fermentation of Soybean Meal Using a Bioreactor. Enzyme Res 2012; 2012:248983. [PMID: 23365723 PMCID: PMC3544265 DOI: 10.1155/2012/248983] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2012] [Revised: 12/03/2012] [Accepted: 12/04/2012] [Indexed: 11/23/2022] Open
Abstract
Biomass-degrading enzymes are one of the most costly inputs affecting the economic viability of the biochemical route for biomass conversion into biofuels. This work evaluates the effects of operational conditions on biomass-degrading multienzyme production by a selected strain of Aspergillus niger. The fungus was cultivated under solid-state fermentation (SSF) of soybean meal, using an instrumented lab-scale bioreactor equipped with an on-line automated monitoring and control system. The effects of air flow rate, inlet air relative humidity, and initial substrate moisture content on multienzyme (FPase, endoglucanase, and xylanase) production were evaluated using a statistical design methodology. Highest production of FPase (0.55 IU/g), endoglucanase (35.1 IU/g), and xylanase (47.7 IU/g) was achieved using an initial substrate moisture content of 84%, an inlet air humidity of 70%, and a flow rate of 24 mL/min. The enzymatic complex was then used to hydrolyze a lignocellulosic biomass, releasing 4.4 g/L of glucose after 36 hours of saccharification of 50 g/L pretreated sugar cane bagasse. These results demonstrate the potential application of enzymes produced under SSF, thus contributing to generate the necessary technological advances to increase the efficiency of the use of biomass as a renewable energy source.
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Khucharoenphaisan K, Sinma K. Beta-xylanase from Thermomyces lanuginosus and its biobleaching application. Pak J Biol Sci 2011; 13:513-26. [PMID: 21848065 DOI: 10.3923/pjbs.2010.513.526] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Thermomyces lanuginosus is thermophilic fungus in which was isolated from widespread material. A high number of this fungus was found in composts especially mushroom composts. This fungus has been reported to produce a high level xylanase when cultivated in the medium containing xylan and corn cob as a carbon source. Various strains of T. lanuginosus produced a single xylanase with molecular masses in range of 22.0 to 29.0 kDa. Pure beta-xylanase obtained from various strains of this fungus exhibited highly stability at high temperature and wide pH range. The optimal temperature and optimal pH of pure beta-xylanase from various strains of T. lanuginosus have been reported in range of 60-75 degrees C and pH 6.0-7.0, respectively. The great thermal stability was resulting from the present of hydrophilic amino acid on beta sheet of the surface of xylanase structure. Moreover, the relatedness between high and low xylanase producing strains can be distinguish by random amplification of polymorphic DNA (RAPD). Based on nucleotide sequences and T. lanuginosus xylanase gene has been classified to be a member of family 11 (formerly known as cellulase family G) glycosyl hydrolases. This enzyme was endo-type xylanase having main product are xylose and xylobiose. The expression of xylanase gene from T. lanuginosus was achieved in Escherichia coli and methylotrophic yeast Pichia pastoris. The ability of T. lanuginosus in which produced large amount of high thermos stable xylanase has made this fungus to be a source of xylanase production for biobleaching in pulp and paper process.
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Affiliation(s)
- K Khucharoenphaisan
- Faculty of Science and Technology, Phranakhon Rajabhat University, Bangkok 10220, Thailand
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Chu CY, Tseng CW, Yueh PY, Duan CH, Liu JR. Molecular cloning and characterization of a β-glucanase from Piromyces rhizinflatus. J Biosci Bioeng 2011; 111:541-6. [DOI: 10.1016/j.jbiosc.2011.01.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2010] [Revised: 01/11/2011] [Accepted: 01/12/2011] [Indexed: 10/18/2022]
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20
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Phytase production by Bacillus subtilis US417 in submerged and solid state fermentations. ANN MICROBIOL 2011. [DOI: 10.1007/s13213-011-0240-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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21
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Khucharoenphaisan K, Tokuyama S, Kitpreechavanich V. Purification and characterization of a high-thermostable β-xylanase from newly isolated Thermomyces lanuginosus THKU-49. MYCOSCIENCE 2010. [DOI: 10.1007/s10267-010-0054-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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22
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Synthesis of PHB nanoparticles from optimized medium utilizing dairy industrial waste using Brevibacterium casei SRKP2: A green chemistry approach. Colloids Surf B Biointerfaces 2009; 74:266-73. [DOI: 10.1016/j.colsurfb.2009.07.029] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2009] [Revised: 07/20/2009] [Accepted: 07/22/2009] [Indexed: 11/18/2022]
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23
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Detection of copper (II) in aqueous solution by immobilized urease obtained from agro-waste: Optimization of process variables. BIOTECHNOL BIOPROC E 2009. [DOI: 10.1007/s12257-008-0292-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Pai CK, Wu ZY, Chen MJ, Zeng YF, Chen JW, Duan CH, Li ML, Liu JR. Molecular cloning and characterization of a bifunctional xylanolytic enzyme from Neocallimastix patriciarum. Appl Microbiol Biotechnol 2009; 85:1451-62. [DOI: 10.1007/s00253-009-2175-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2009] [Revised: 07/29/2009] [Accepted: 07/29/2009] [Indexed: 11/24/2022]
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Hung YJ, Peng CC, Tzen JTC, Chen MJ, Liu JR. Immobilization of Neocallimastix patriciarum xylanase on artificial oil bodies and statistical optimization of enzyme activity. BIORESOURCE TECHNOLOGY 2008; 99:8662-8666. [PMID: 18495476 DOI: 10.1016/j.biortech.2008.04.017] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2008] [Revised: 04/03/2008] [Accepted: 04/06/2008] [Indexed: 05/26/2023]
Abstract
A thermally stable and alkalophilic xylanase, XynCDBFV, from Neocallimastix patriciarum was overexpressed in Escherichia coli as a recombinant protein fused to the N-terminus of oleosin, a unique structural protein of seed oil bodies. As a result of the reconstitution of the artificial oil bodies (AOBs), the immobilization of active xylanase was accomplished. Response surface methodology (RSM) was employed for the optimization of the immobilized xylanase activity. The central composite design (CCD) and regression analysis methods were effective for determination of optimized temperature and pH conditions for the AOB-immobilized XynCDBFV. The optimal condition for the highest immobilized xylanase activity (3.93IU/mg of total protein) was observed at 59 degrees C and pH 6.0. Further, AOB-immobilized XynCDBFV retained 50% of its maximal activity after 120min at 60 degrees C, and it could be easily and simply recovered from the surface of the solution by brief centrifugation, and could be reused eight times while retaining more than 60% of its activity. These results proved it is a simple and effective method for direct immobilization of xylanases.
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Affiliation(s)
- Ying-Jing Hung
- Department of Animal Science and Technology, National Taiwan University, Taipei 106, Taiwan
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26
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Li N, Shi P, Yang P, Wang Y, Luo H, Bai Y, Zhou Z, Yao B. Cloning, expression, and characterization of a new Streptomyces sp. S27 xylanase for which xylobiose is the main hydrolysis product. Appl Biochem Biotechnol 2008; 159:521-31. [PMID: 19002659 DOI: 10.1007/s12010-008-8411-0] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2008] [Accepted: 10/23/2008] [Indexed: 11/26/2022]
Abstract
A xylanase gene, xynBS27, was cloned from Streptomyces sp. S27 and consisted of 693 bp encoding a 230-residue protein, including a putative 41-residue signal peptide. Belonging to the glycoside hydrolase family 11, XynBS27 exhibits the maximum identity (75.9%) to the xylanase from Streptomyces sp. zxy19. Recombinant XynBS27 was overexpressed in Pichia pastoris, and the xylanase activity was 7624.0 U/ml after high-cell-density fermentation in 3.7-L fermenter. The purified recombinant XynBS27 had a high specific activity of 3272.0 U/mg. The optimum temperature and pH for XynBS27 activity was 65 degrees C and pH 6.5, respectively. XynBS27 showed good pH stability and retained more than 80% of the maximum activity after incubation in buffers with pH ranging between 4.0 and 12.0 at 37 degrees C for 1 h. The main hydrolysis product of xylan by XynBS27 was xylobiose (>75%), which was good for human health derived from its ability to modulate the intestinal function. The attractive biochemical characteristics of XynBS27 suggest that it may be a good candidate in a variety of industrial applications.
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Affiliation(s)
- Ning Li
- Key Laboratory for Feed Biotechnology of the Ministry of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, People's Republic of China
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27
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Xu YX, Li YL, Xu SC, Liu Y, Wang X, Tang JW. Improvement of xylanase production by Aspergillus niger XY-1 using response surface methodology for optimizing the medium composition. J Zhejiang Univ Sci B 2008; 9:558-66. [PMID: 18600786 DOI: 10.1631/jzus.b0820038] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE To study the optimal medium composition for xylanase production by Aspergillus niger XY-1 in solid-state fermentation (SSF). METHODS Statistical methodology including the Plackett-Burman design (PBD) and the central composite design (CCD) was employed to investigate the individual crucial component of the medium that significantly affected the enzyme yield. RESULTS Firstly, NaNO(3), yeast extract, urea, Na(2)CO(3), MgSO(4), peptone and (NH(4))(2)SO(4) were screened as the significant factors positively affecting the xylanase production by PBD. Secondly, by valuating the nitrogen sources effect, urea was proved to be the most effective and economic nitrogen source for xylanase production and used for further optimization. Finally, the CCD and response surface methodology (RSM) were applied to determine the optimal concentration of each significant variable, which included urea, Na(2)CO(3) and MgSO(4). Subsequently a second-order polynomial was determined by multiple regression analysis. The optimum values of the critical components for maximum xylanase production were obtained as follows: x(1) (urea)=0.163 (41.63 g/L), x(2) (Na(2)CO(3))=-1.68 (2.64 g/L), x(3) (MgSO(4))=1.338 (10.68 g/L) and the predicted xylanase value was 14374.6 U/g dry substrate. Using the optimized condition, xylanase production by Aspergillus niger XY-1 after 48 h fermentation reached 14637 U/g dry substrate with wheat bran in the shake flask. CONCLUSION By using PBD and CCD, we obtained the optimal composition for xylanase production by Aspergillus niger XY-1 in SSF, and the results of no additional expensive medium and shortened fermentation time for higher xylanase production show the potential for industrial utilization.
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Affiliation(s)
- Yao-Xing Xu
- Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China.
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28
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Li N, Meng K, Wang Y, Shi P, Luo H, Bai Y, Yang P, Yao B. Cloning, expression, and characterization of a new xylanase with broad temperature adaptability from Streptomyces sp. S9. Appl Microbiol Biotechnol 2008; 80:231-40. [DOI: 10.1007/s00253-008-1533-z] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2007] [Revised: 05/02/2008] [Accepted: 05/05/2008] [Indexed: 10/22/2022]
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Cheng HL, Wang PM, Chen YC, Yang SS, Chen YC. Cloning, characterization and phylogenetic relationships of stxI, a endoxylanase-encoding gene from Streptomyces thermonitrificans NTU-88. BIORESOURCE TECHNOLOGY 2008; 99:227-31. [PMID: 17215123 DOI: 10.1016/j.biortech.2006.11.023] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2006] [Revised: 11/17/2006] [Accepted: 11/20/2006] [Indexed: 05/13/2023]
Abstract
A thermostable xylanase gene (stxI) obtained from Streptomyces thermonitrificans NTU-88 on domain analysis revealed an N-terminal catalytic domain featuring homology to a known xylanase within the glycoside hydrolase family 11. Recombinant STXI retained more than 60% of its activity following its incubation for at 60 degrees C for 24h. These characteristics were close to thermophile and mesophile Streptomyces strains. The main hydrolysis products of xylan degraded by STXI included large xylooligosaccharide fragments. These results indicated that STXI was a typical endoxylanase. As regards the phylogenetic relationships of GH11, STXI and the other xylanase deriving from Streptomyces were included in a subgroup of the aerobic bacterial group. This result implied that the evolutionary relationships between the various xylanases deriving from Streptomyces strains were convergent.
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Affiliation(s)
- Hsueh-Ling Cheng
- Institute of Biotechnology, National Pingtung University of Science and Technology, Pingtung, Taiwan, ROC
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