1
|
Irfan M, Asghar U, Nadeem M, Nelofer R, Syed Q. Optimization of process parameters for xylanase production byBacillussp. in submerged fermentation. JOURNAL OF RADIATION RESEARCH AND APPLIED SCIENCES 2019. [DOI: 10.1016/j.jrras.2015.10.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Muhammad Irfan
- Department of Zoology, University of the Punjab, New Campus Lahore, 54590, Pakistan
- Food & Biotechnology Research Center (FBRC), Pakistan Council of Scientific and Industrial Research (PCSIR), Laboratories Complex, Ferozpure Road Lahore, 54600, Pakistan
| | - Umar Asghar
- Food & Biotechnology Research Center (FBRC), Pakistan Council of Scientific and Industrial Research (PCSIR), Laboratories Complex, Ferozpure Road Lahore, 54600, Pakistan
| | - Muhammad Nadeem
- Food & Biotechnology Research Center (FBRC), Pakistan Council of Scientific and Industrial Research (PCSIR), Laboratories Complex, Ferozpure Road Lahore, 54600, Pakistan
| | - Rubina Nelofer
- Food & Biotechnology Research Center (FBRC), Pakistan Council of Scientific and Industrial Research (PCSIR), Laboratories Complex, Ferozpure Road Lahore, 54600, Pakistan
| | - Quratulain Syed
- Food & Biotechnology Research Center (FBRC), Pakistan Council of Scientific and Industrial Research (PCSIR), Laboratories Complex, Ferozpure Road Lahore, 54600, Pakistan
| |
Collapse
|
2
|
Wang X, Huang H, Xie X, Ma R, Bai Y, Zheng F, You S, Zhang B, Xie H, Yao B, Luo H. Improvement of the catalytic performance of a hyperthermostable GH10 xylanase from Talaromyces leycettanus JCM12802. BIORESOURCE TECHNOLOGY 2016; 222:277-284. [PMID: 27723474 DOI: 10.1016/j.biortech.2016.10.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 09/30/2016] [Accepted: 10/01/2016] [Indexed: 05/07/2023]
Abstract
A xylanase gene of GH 10, Tlxyn10A, was cloned from Talaromyces leycettanus JCM12802 and expressed in Pichia pastoris. Purified recombinant TlXyn10A was acidic and hyperthermophilic, and retained stable over the pH range of 2.0-6.0 and at 90°C. Sequence analysis of TlXyn10A identified seven residues probably involved in substrate contacting. Three mutants (TlXyn10A_P, _N and _C) were then constructed by substituting some or all of the residues with corresponding ones of hyperthermal Xyl10C from Bispora sp. MEY-1. TlXyn10A_P with mutations at subsites +2 to +4 exhibited improved specific activity (by 0.44-fold) and pH stability (2.0-10.0). Molecular dynamics simulation analysis indicated that mutations E229I and F232E probably weaken the substrate affinity at subsites +3 to +4, and G149D may introduce a new hydrogen bond. These modifications altogether account for the improved performance of TlXyn10A_P. Moreover, TlXyn10A_P was able to hydrolyze wheat straw persistently, and has the application potentials in various industries.
Collapse
Affiliation(s)
- Xiaoyu Wang
- 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; College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, People's Republic of China
| | - Huoqing Huang
- 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
| | - Xiangming Xie
- College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, People's Republic of China
| | - Rui Ma
- 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
| | - Yingguo Bai
- 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
| | - Fei Zheng
- 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; College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, People's Republic of China
| | - Shuai You
- 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
| | - Bingyu Zhang
- 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
| | - Huifang Xie
- 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
| | - Bin Yao
- 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
| | - Huiying Luo
- 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.
| |
Collapse
|
3
|
Ribeiro LFC, De Lucas RC, Vitcosque GL, Ribeiro LF, Ward RJ, Rubio MV, Damásio ARL, Squina FM, Gregory RC, Walton PH, Jorge JA, Prade RA, Buckeridge MS, Polizeli MDLTM. A novel thermostable xylanase GH10 from Malbranchea pulchella expressed in Aspergillus nidulans with potential applications in biotechnology. BIOTECHNOLOGY FOR BIOFUELS 2014; 7:115. [PMID: 25788980 PMCID: PMC4364333 DOI: 10.1186/1754-6834-7-115] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Accepted: 07/15/2014] [Indexed: 05/23/2023]
Abstract
BACKGROUND The search for novel thermostable xylanases for industrial use has intensified in recent years, and thermophilic fungi are a promising source of useful enzymes. The present work reports the heterologous expression and biochemical characterization of a novel thermostable xylanase (GH10) from the thermophilic fungus Malbranchea pulchella, the influence of glycosylation on its stability, and a potential application in sugarcane bagasse hydrolysis. RESULTS Xylanase MpXyn10A was overexpressed in Aspergillus nidulans and was active against birchwood xylan, presenting an optimum activity at pH 5.8 and 80°C. MpXyn10A was 16% glycosylated and thermostable, preserving 85% activity after 24 hours at 65°C, and deglycosylation did not affect thermostability. Circular dichroism confirmed the high alpha-helical content consistent with the canonical GH10 family (β/α)8 barrel fold observed in molecular modeling. Primary structure analysis revealed the existence of eight cysteine residues which could be involved in four disulfide bonds, and this could explain the high thermostability of this enzyme even in the deglycosylated form. MpXyn10A showed promising results in biomass degradation, increasing the amount of reducing sugars in bagasse in natura and in three pretreated sugarcane bagasses. CONCLUSIONS MpXyn10A was successfully secreted in Aspergillus nidulans, and a potential use for sugarcane bagasse biomass degradation was demonstrated.
Collapse
Affiliation(s)
- Liliane FC Ribeiro
- />Immunology and Biochemistry Department of Faculdade de Medicina de Ribeirão Preto - USP, Ribeirão Preto, SP Brazil
| | - Rosymar C De Lucas
- />Immunology and Biochemistry Department of Faculdade de Medicina de Ribeirão Preto - USP, Ribeirão Preto, SP Brazil
| | - Gabriela L Vitcosque
- />Immunology and Biochemistry Department of Faculdade de Medicina de Ribeirão Preto - USP, Ribeirão Preto, SP Brazil
| | - Lucas F Ribeiro
- />Immunology and Biochemistry Department of Faculdade de Medicina de Ribeirão Preto - USP, Ribeirão Preto, SP Brazil
| | - Richard J Ward
- />Chemistry Department of Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto - USP, Ribeirão Preto, SP Brazil
- />Laboratório Nacional de Ciência e Tecnologia do Bioetanol (CTBE), Campinas, SP Brazil
| | - Marcelo V Rubio
- />Laboratório Nacional de Ciência e Tecnologia do Bioetanol (CTBE), Campinas, SP Brazil
| | - Andre RL Damásio
- />Laboratório Nacional de Ciência e Tecnologia do Bioetanol (CTBE), Campinas, SP Brazil
| | - Fabio M Squina
- />Laboratório Nacional de Ciência e Tecnologia do Bioetanol (CTBE), Campinas, SP Brazil
| | | | - Paul H Walton
- />Department of Chemistry, The University of York, York, UK
| | - João A Jorge
- />Biology Department of Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto - USP, Av. Bandeirantes, 3900, Ribeirão Preto, SP 14040-901 Brazil
| | - Rolf A Prade
- />Department of Microbiology and Molecular Genetics, Oklahoma State University, Stillwater, OK USA
| | | | - Maria de Lourdes TM Polizeli
- />Biology Department of Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto - USP, Av. Bandeirantes, 3900, Ribeirão Preto, SP 14040-901 Brazil
| |
Collapse
|
4
|
Garai D, Kumar V. Response surface optimization for xylanase with high volumetric productivity by indigenous alkali tolerant Aspergillus candidus under submerged cultivation. 3 Biotech 2013; 3:127-136. [PMID: 28324567 PMCID: PMC3597133 DOI: 10.1007/s13205-012-0077-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2012] [Accepted: 07/09/2012] [Indexed: 11/17/2022] Open
Abstract
In this study, a novel isolate Aspergillus candidus was employed for xylanase production using low cost agro residues. A Box-Behnken design matrix was used to optimize the influential parameters like carbon source, nitrogen source and incubation temperature for maximum xylanase production. Under optimized condition, enzyme titer level enhanced to 69 IU/ml at 48 h with volumetric productivity 1437 IU/l h. Growth and enzyme production were observed even at pH 11.0, indicating its ability to sustain at high alkaline environment. Little amount of cellulase was produced concomitantly with xylanase during the course of the process. Volumetric productivity of xylanase was found as a function of temperature. This fungal strain was emerged as a one among few strains having high xylanase productivity.
Collapse
|
5
|
Fawzi E. Highly thermostable xylanase purified from Rhizomucor miehei NRL 3169. ACTA BIOLOGICA HUNGARICA 2011; 62:85-94. [PMID: 21388922 DOI: 10.1556/abiol.61.2011.1.9] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
A thermostable xylanase was purified and characterized from the thermophilic fungus Rhizomucor miehei (Cooney & Emerson) Schipper. The enzyme was purified to homogeneity by ammonium sulfate precipitation, sephadex G-100 gel filtration and diethylaminoethyl cellulose anion exchange chromatography with a 29.1-fold. The enzyme was highly active within a range of pH from 5.0 to 6.5. The optimum temperature of the purified enzyme was 75°C. The enzyme showed high thermal stability at 70°C and 75°C and the half-life of the xylanase at 90°C was 30 min. Km and Vmax values at 50°C of the purified enzyme were 0.055 mg/ml and 113.5 μmol min⁻¹ mg⁻¹ respectively. The enzyme was activated by Ca²+, Cu²+, K+ and Na+. On the other hand, Ag²+, Hg²+, Ba²+, and Zn²+ inhibited the enzyme. The molecular weight of the xylanase was estimated to be 27 kDa by sodium dodecyl sulfate-polyacrylamide gel electrophoresis. The present study is among the first works to examine and describe a secreted highly thermostable endoxylanase from the Rhizomucor miehei fungus. This enzyme displays a number of biochemical properties that make it a potentially strong candidate for industrial and commercial application in pulp bleaching.
Collapse
|
6
|
Tamarind kernel powder co-induces xylanase and cellulase production during submerged fermentation of Termitomyces clypeatus. BIOTECHNOL BIOPROC E 2010. [DOI: 10.1007/s12257-009-3042-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
7
|
Oliveira DS, Meherb-Dini C, Franco CM, Gomes E, Da-Silva R. Production of Crude Xylanase from Thermoascus Aurantiacus CBMAI 756 Aiming the Baking Process. J Food Sci 2010; 75:C588-94. [DOI: 10.1111/j.1750-3841.2010.01740.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
8
|
|
9
|
Gomes J, Terler K, Kratzer R, Kainz E, Steiner W. Production of thermostable β-mannosidase by a strain of Thermoascus aurantiacus: Isolation, partial purification and characterization of the enzyme. Enzyme Microb Technol 2007. [DOI: 10.1016/j.enzmictec.2006.08.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
10
|
Badhan AK, Chadha BS, Kaur J, Saini HS, Bhat MK. Production of multiple xylanolytic and cellulolytic enzymes by thermophilic fungus Myceliophthora sp. IMI 387099. BIORESOURCE TECHNOLOGY 2007; 98:504-10. [PMID: 16600593 DOI: 10.1016/j.biortech.2006.02.009] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2005] [Revised: 01/27/2006] [Accepted: 02/08/2006] [Indexed: 05/08/2023]
Abstract
This study reports the production of xylanolytic and cellulolytic enzymes by a thermophilic fungal isolate Myceliophthora sp. using a cheap medium containing rice straw and chemically defined basal medium under solid-state culture. A combination of one factor at a time approach followed by response surface methodology using Box-Behnken design of experiments resulted in 2.5, 1.25, 1.28 and 4.23 fold increase in xylanase, endoglucanase, beta-glucosidase and FPase activity, respectively. The zymograms developed against IEF gels showed that multiple isoforms of xylanase (5), endoglucanase (4) and beta-glucosidase (2) were produced under optimized culture conditions. Moreover, thiol containing serine proteases produced during the growth of the culture had no role in the post-translational modification of these xylanases.
Collapse
Affiliation(s)
- A K Badhan
- Department of Microbiology, Guru Nanak Dev University, Amritsar 143 005, Punjab, India
| | | | | | | | | |
Collapse
|
11
|
Mendicuti Castro LP, Trejo-Aguilar BA, Aguilar Osorio G. Thermostable xylanases produced at 37°C and 45°C by a thermotolerant Aspergillus strain. FEMS Microbiol Lett 2006. [DOI: 10.1111/j.1574-6968.1997.tb10177.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
|
12
|
Altintas MM, Ülgen KÖ. Growth ofThermus aquaticusand itsTaqI endonuclease production. ACTA ACUST UNITED AC 2004. [DOI: 10.1002/abio.370190108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
13
|
Lenartovicz V, de Souza CGM, Moreira FG, Peralta RM. Temperature and carbon source affect the production and secretion of a thermostable β-xylosidase by Aspergillus fumigatus. Process Biochem 2003. [DOI: 10.1016/s0032-9592(02)00261-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
14
|
Singh S, Madlala AM, Prior BA. Thermomyces lanuginosus: properties of strains and their hemicellulases. FEMS Microbiol Rev 2003; 27:3-16. [PMID: 12697339 DOI: 10.1016/s0168-6445(03)00018-4] [Citation(s) in RCA: 210] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
The non-cellulolytic Thermomyces lanuginosus is a widespread and frequently isolated thermophilic fungus. Several strains of this fungus have been reported to produce high levels of cellulase-free beta-xylanase both in shake-flask and bioreactor cultivations but intraspecies variability in terms of beta-xylanase production is apparent. Furthermore all strains produce low extracellular levels of other hemicellulases involved in hemicellulose hydrolysis. Crude and purified hemicellulases from this fungus are stable at high temperatures in the range of 50-80 degrees C and over a broad pH range (3-12). Various strains are reported to produce a single xylanase with molecular masses varying between 23 and 29 kDa and pI values between 3.7 and 4.1. The gene encoding the T. lanuginosus xylanase has been cloned and sequenced and is shown to be a member of family 11 glycosyl hydrolases. The crystal structure of the xylanase indicates that the enzyme consists of two beta-sheets and one alpha-helix and forms a rigid complex with the three central sugars of xyloheptaose whereas the peripheral sugars might assume different configurations thereby allowing branched xylan chains to be accepted. The presence of an extra disulfide bridge between the beta-strand and the alpha-helix, as well as to an increase in the density of charged residues throughout the xylanase might contribute to the thermostability. The ability of T. lanuginosus to produce high levels of cellulase-free thermostable xylanase has made the fungus an attractive source of thermostable xylanase with potential as a bleach-boosting agent in the pulp and paper industry and as an additive in the baking industry.
Collapse
Affiliation(s)
- Suren Singh
- Department of Biotechnology, Durban Institute of Technology, P.O. Box 1334, Durban 4000, South Africa.
| | | | | |
Collapse
|
15
|
|
16
|
Thermal stability of beta-xylanases produced by different Thermomyces lanuginosus strains. Enzyme Microb Technol 2000; 26:502-508. [PMID: 10771053 DOI: 10.1016/s0141-0229(99)00193-3] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
The thermostability of beta-xylanases produced by nine thermophilic Thermomyces lanuginosus strains in a coarse corn cob medium was assessed. The xylanase produced by T. lanuginosus strain SSBP retained 100% of its activity after 6 h at temperatures up to 65 degrees C. In comparison seven ATCC strains and the DSM 5826 strain of T. lanuginosus only retained 100% xylanase activity at temperatures up to 60 degrees C. Culture filtrates of T. lanuginosus strain SSBP grown on coarse corn cobs, oatspelts xylan, birchwood xylan, wheatbran, locust beangum, and sugar cane bagasse, retained 100% xylanase activity at temperatures up to 60 degrees C. The xylanase produced on corn cobs was the most thermostable and showed an increase of approximately 6% from 70 degrees C to 80 degrees C. The T(1/2) of all strains at 70 degrees C at pH 6.5 varied greatly from 63 min for strain ATCC 28083 to 340 min for strain SSBP. The xylanase of strain SSBP was much less thermostable at pH 5.0 and pH 12.0 with T(1/2) values of 11.5 min and 15 min, respectively at 70 degrees C. At 50 degrees C, the enzyme of T. lanuginosus strain SSBP produced on coarse corn cobs was stable within the pH range of 5.5-10.0. Furthermore, the enzyme retained total activity at 60 degrees C for over 14 days and at 65 degrees C for over 48 h. The xylanase of T. lanuginosus strain SSBP possesses thermo- and pH stability properties that may be attractive to industrial application.
Collapse
|
17
|
Enzymatic pretreatment of kraft pulps from pinus radiata D don with xylanolytic complex of pénicillium canescens (CP1) fungi. Appl Biochem Biotechnol 1998. [DOI: 10.1007/bf02788831] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|