1
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Wang P, Pei X, Zhou W, Zhao Y, Gu P, Li Y, Gao J. Research and application progress of microbial β-mannanases: a mini-review. World J Microbiol Biotechnol 2024; 40:169. [PMID: 38630389 DOI: 10.1007/s11274-024-03985-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Accepted: 04/08/2024] [Indexed: 04/19/2024]
Abstract
Mannan is a predominant constituent of cork hemicellulose and is widely distributed in various plant tissues. β-Mannanase is the principal mannan-degrading enzyme, which breaks down the β-1,4-linked mannosidic bonds in mannans in an endo-acting manner. Microorganisms are a valuable source of β-mannanase, which exhibits catalytic activity in a wide range of pH and temperature, making it highly versatile and applicable in pharmaceuticals, feed, paper pulping, biorefinery, and other industries. Here, the origin, classification, enzymatic properties, molecular modification, immobilization, and practical applications of microbial β-mannanases are reviewed, the future research directions for microbial β-mannanases are also outlined.
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Affiliation(s)
- Ping Wang
- School of Biological Science and Technology, University of Jinan, Jinan, 250022, PR China
| | - Xiaohui Pei
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Shandong First Medical University, Taian, 271000, PR China
| | - Weiqiang Zhou
- Weili Biotechnology (Shandong) Co., Ltd, Taian, 271400, PR China
| | - Yue Zhao
- School of Biological Science and Technology, University of Jinan, Jinan, 250022, PR China
| | - Pengfei Gu
- School of Biological Science and Technology, University of Jinan, Jinan, 250022, PR China
| | - Yumei Li
- School of Biological Science and Technology, University of Jinan, Jinan, 250022, PR China.
| | - Juan Gao
- School of Biological Science and Technology, University of Jinan, Jinan, 250022, PR China.
- Shandong Engineering Research Center of Key Technologies for High-Value and High-Efficiency Full Industry Chain of Lonicera japonica, Linyi, 273399, PR China.
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2
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Sadaqat B, Dar MA, Sha C, Abomohra A, Shao W, Yong YC. Thermophilic β-mannanases from bacteria: production, resources, structural features and bioengineering strategies. World J Microbiol Biotechnol 2024; 40:130. [PMID: 38460032 DOI: 10.1007/s11274-024-03912-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 01/29/2024] [Indexed: 03/11/2024]
Abstract
β-mannanases are pivotal enzymes that cleave the mannan backbone to release short chain mannooligosaccharides, which have tremendous biotechnological applications including food/feed, prebiotics and biofuel production. Due to the high temperature conditions in many industrial applications, thermophilic mannanases seem to have great potential to overcome the thermal impediments. Thus, structural analysis of thermostable β-mannanases is extremely important, as it could open up new avenues for genetic engineering, and protein engineering of these enzymes with enhanced properties and catalytic efficiencies. Under this scope, the present review provides a state-of-the-art discussion on the thermophilic β-mannanases from bacterial origin, their production, engineering and structural characterization. It covers broad insights into various molecular biology techniques such as gene mutagenesis, heterologous gene expression, and protein engineering, that are employed to improve the catalytic efficiency and thermostability of bacterial mannanases for potential industrial applications. Further, the bottlenecks associated with mannanase production and process optimization are also discussed. Finally, future research related to bioengineering of mannanases with novel protein expression systems for commercial applications are also elaborated.
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Affiliation(s)
- Beenish Sadaqat
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, Jiangsu province, People's Republic of China
- Department of Biochemistry and Structural Biology, Lund University, Box 124, 22100, Lund, Sweden
| | - Mudasir A Dar
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, Jiangsu province, People's Republic of China
| | - Chong Sha
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, Jiangsu province, People's Republic of China
| | - Abdelfatah Abomohra
- Aquatic Ecophysiology and Phycology, Department of Biology, Institute of Plant Science and Microbiology, University of Hamburg, Hamburg, 22609, Germany
| | - Weilan Shao
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, Jiangsu province, People's Republic of China.
| | - Yang-Chun Yong
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, Jiangsu province, People's Republic of China.
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3
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Tan S, Tao X, Zheng P, Chen P, Yu X, Li N, Gao T, Wu D. Thermostability modification of β-mannanase from Aspergillus niger via flexibility modification engineering. Front Microbiol 2023; 14:1119232. [PMID: 36891394 PMCID: PMC9986629 DOI: 10.3389/fmicb.2023.1119232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 01/06/2023] [Indexed: 02/22/2023] Open
Abstract
Introduction β-Mannanases can hydrolyze mannans, which are widely available in nature. However, the optimum temperature of most β-mannanases is too low to be directly utilized in industry. Methods To further improve the thermostability of Anman (mannanase from Aspergillus niger CBS513.88), B-factor and Gibbs unfolding free energy change were used to modify the flexible of Anman, and then combined with multiple sequence alignment and consensus mutation to generate an excellent mutant. At last, we analyzed the intermolecular forces between Anman and the mutant by molecular dynamics simulation. Results The thermostability of combined mutant mut5 (E15C/S65P/A84P/A195P/T298P) was increased by 70% than the wild-type Amman at 70°C, and the melting temperature (Tm) and half-life (t1/2) values were increased by 2°C and 7.8-folds, respectively. Molecular dynamics simulation showed reduced flexibility and additional chemical bonds in the region near the mutation site. Discussion These results indicate that we obtained a Anman mutant that is more suitable for industrial application, and they also confirm that a combination of rational and semi-rational techniques is helpful for screening mutant sites.
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Affiliation(s)
- Shundong Tan
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, China
| | - Xiumei Tao
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Pu Zheng
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, China
| | - Pengcheng Chen
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, China
| | - Xiaowei Yu
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, China
| | - Ning Li
- Guangzhou Puratos Food Co., Ltd., Guangzhou, China
| | - Tiecheng Gao
- Guangzhou Puratos Food Co., Ltd., Guangzhou, China
| | - Dan Wu
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, China
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4
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Mary PR, Monica P, Kapoor M. Insights into β-manno-oligosaccharide uptake and metabolism in Bifidobacterium adolescentis DSMZ 20083 from whole-genome microarray analysis. Microbiol Res 2022; 266:127215. [DOI: 10.1016/j.micres.2022.127215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 09/14/2022] [Accepted: 09/26/2022] [Indexed: 10/14/2022]
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5
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Shubhashini A, Prabha N, Monica P, Chaudhari SR, Kapoor M. Short-chain β-manno-oligosaccharides from copra meal: structural characterization, prebiotic potential and anti-glycation activity. Food Funct 2022; 13:4086-4100. [PMID: 35315851 DOI: 10.1039/d2fo00013j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Size-exclusion chromatography, HR-ESI-MS and FT-IR of copra meal hydrolyzed by ManB-1601 showed the presence of oligosaccharides (CM-β-MOS) having a degree of polymerisation (DP) between 2 and 4. Thermal decomposition studies of the purified CM-β-MOS (DP 2, 3 and 4) showed mass loss at high temperatures (135.8 °C to 600 °C). DP2, DP3 and DP4 CM-β-MOS were adjudged as un-substituted Manβ-4Man, Manβ-4Manβ-4Man and Manβ-4Manβ-4Manβ-4Man, respectively, using NMR (1H and 13C) studies. During fermentation, purified CM-β-MOS supported the growth of Lactobacillus sp. and inhibited enteropathogens (Escherichia coli, Listeria monocytogenes and Salmonella typhi). Acetate was the predominant short-chain fatty acid produced by Lactobacillus sp. RT-PCR studies of L. plantarum WCFS1 fed with CM-β-MOS showed up-regulation (up to 6.7-fold) of the cellobiose utilization operon (pts23C and pbg6) and oligo-sucrose utilization loci (pts1BCA and agl2). Biochemical (free amino groups, carbonyl and fructosamine content), fluorescence (AGEs-specific and intrinsic) and molecular docking studies suggested the anti-glycation potential of CM-β-MOS.
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Affiliation(s)
- A Shubhashini
- Department of Protein Chemistry and Technology, CSIR-Central Food Technological Research Institute, Mysuru-570 020, India.
| | - Neelam Prabha
- Department of Protein Chemistry and Technology, CSIR-Central Food Technological Research Institute, Mysuru-570 020, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - P Monica
- Department of Protein Chemistry and Technology, CSIR-Central Food Technological Research Institute, Mysuru-570 020, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Sachin Rama Chaudhari
- Department of Spices and Flavour Sciences, CSIR-Central Food Technological Research Institute, Mysuru 570 020, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Mukesh Kapoor
- Department of Protein Chemistry and Technology, CSIR-Central Food Technological Research Institute, Mysuru-570 020, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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6
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Monica P, Mutturi S, Kapoor M. Truncation of C-terminal amino acids of GH26 endo-mannanase (ManB-1601) affects biochemical properties and stability against anionic surfactants. Enzyme Microb Technol 2022; 157:110031. [DOI: 10.1016/j.enzmictec.2022.110031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 02/18/2022] [Accepted: 03/10/2022] [Indexed: 11/16/2022]
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7
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Sun Y, Zhou X, Zhang W, Tian X, Ping W, Ge J. Enhanced β-mannanase production by Bacillus licheniformis by optimizing carbon source and feeding regimes. Prep Biochem Biotechnol 2021; 52:845-853. [PMID: 34826265 DOI: 10.1080/10826068.2021.2001753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Bacillus licheniformis HDYM-04 was isolated in flax retting water and showed β-mannanase activity. Carbon sources for β-mannanase production, as well as the fermentation conditions and feeding strategy, were optimized in shake flasks. When glucose or konjac powder was used as the carbon source, the β-mannanase activity was 288.13 ± 21.59 U/mL and 696.35 ± 23.47 U/mL at 24 h, respectively, which was approximately 4.4- to 10.68-fold higher than the values obtained with wheat powder. When 0.5% (w/v) glucose and 1% (w/v) konjac powder were added together, maximum enzyme activities of 789.07 ± 25.82 U/mL were obtained, an increase of 13.35% compared to the unoptimized cultures with only 1% (w/v) konjac powder. The enzyme activity decreased in the presence of 1% (w/v) konjac powder, but the highest enzyme activity was 1,533.26 ± 33.74 U/mL, a 1.2-fold increase compared with that in nonoptimized cultures; when 0.5% (w/v) glucose was used, the highest enzyme activity was 966.53 ± 27.84 U/mL, an increase in β-mannanase activity of 38.79% compared with control cultures. In this study, by optimizing fed-batch fermentation conditions, the yield of β-mannanase produced by HDYM-04 was increased, laying the foundation for the industrial application and further research of B. licheniformis HDYM-04.
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Affiliation(s)
- Yangcun Sun
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education, Heilongjiang University, Harbin, China.,Key Laboratory of Microbiology, College of Heilongjiang Province, School of Life Sciences, Heilongjiang University, Harbin, China
| | - Xiaohang Zhou
- College of Basic Medicine, Mudanjiang Medical University, MuDanJiang City, China
| | - Wen Zhang
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education, Heilongjiang University, Harbin, China.,Key Laboratory of Microbiology, College of Heilongjiang Province, School of Life Sciences, Heilongjiang University, Harbin, China
| | - Xue Tian
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education, Heilongjiang University, Harbin, China.,Key Laboratory of Microbiology, College of Heilongjiang Province, School of Life Sciences, Heilongjiang University, Harbin, China
| | - Wenxiang Ping
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education, Heilongjiang University, Harbin, China.,Key Laboratory of Microbiology, College of Heilongjiang Province, School of Life Sciences, Heilongjiang University, Harbin, China
| | - Jingping Ge
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education, Heilongjiang University, Harbin, China.,Key Laboratory of Microbiology, College of Heilongjiang Province, School of Life Sciences, Heilongjiang University, Harbin, China
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8
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Bhaturiwala R, Bagban M, Singh TA, Modi H. Partial purification and application of β-mannanase for the preparation of low molecular weight galacto and glucomannan. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2021. [DOI: 10.1016/j.bcab.2021.102155] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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9
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Dawood A, Ma K. Applications of Microbial β-Mannanases. Front Bioeng Biotechnol 2020; 8:598630. [PMID: 33384989 PMCID: PMC7770148 DOI: 10.3389/fbioe.2020.598630] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 10/28/2020] [Indexed: 11/24/2022] Open
Abstract
Mannans are main components of hemicellulosic fraction of softwoods and they are present widely in plant tissues. β-mannanases are the major mannan-degrading enzymes and are produced by different plants, animals, actinomycetes, fungi, and bacteria. These enzymes can function under conditions of wide range of pH and temperature. Applications of β-mannanases have therefore, been found in different industries such as animal feed, food, biorefinery, textile, detergent, and paper and pulp. This review summarizes the most recent studies reported on potential applications of β-mannanases and bioengineering of β-mannanases to modify and optimize their key catalytic properties to cater to growing demands of commercial sectors.
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Affiliation(s)
- Aneesa Dawood
- Department of Microbiology, Quaid-I-Azam University, Islamabad, Pakistan
- Department of Radiology and Medical Imaging, University of Virginia, Charlottesville, VA, United States
| | - Kesen Ma
- Department of Biology, University of Waterloo, Waterloo, ON, Canada
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10
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Kaira GS, Kapoor M. Molecular advancements on over-expression, stability and catalytic aspects of endo-β-mannanases. Crit Rev Biotechnol 2020; 41:1-15. [PMID: 33032458 DOI: 10.1080/07388551.2020.1825320] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The hydrolysis of mannans by endo-β-mannanases continues to gather significance as exemplified by its commercial applications in food, feed, and a rekindled interest in biorefineries. The present review provides a comprehensive account of fundamental research and fascinating insights in the field of endo-β-mannanase engineering in order to improve over-expression and to decipher molecular determinants governing activity-stability during harsh conditions, substrate recognition, polysaccharide specificity, endo/exo mode of action and multi-functional activities in the modular polypeptide. In-depth analysis of the available literature has also been made on rational and directed evolution approaches, which have translated native endo-β-mannanases into superior biocatalysts for satisfying industrial requirements.
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Affiliation(s)
- Gaurav Singh Kaira
- Department of Protein Chemistry and Technology, CSIR-Central Food Technological Research Institute, Mysuru, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Mukesh Kapoor
- Department of Protein Chemistry and Technology, CSIR-Central Food Technological Research Institute, Mysuru, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
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11
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Zn2+ stapling of N and C-terminal maintains stability and substrate affinity in GH26 endo-mannanase. Enzyme Microb Technol 2020; 135:109497. [DOI: 10.1016/j.enzmictec.2019.109497] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 11/13/2019] [Accepted: 12/20/2019] [Indexed: 01/09/2023]
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12
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Zhu M, Zhang L, Yang F, Cha Y, Li S, Zhuo M, Huang S, Li J. A Recombinant β-Mannanase from Thermoanaerobacterium aotearoense SCUT27: Biochemical Characterization and Its Thermostability Improvement. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:818-825. [PMID: 31845578 DOI: 10.1021/acs.jafc.9b06246] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
β-Mannanase was expressed in Thermoanaerobacterium aotearoense SCUT27 induced by locust bean gum (LBG). The open reading frame encoding a GH26 β-mannanase was identified and encoded a preprotein of 515 amino acids with a putative signal peptide. The enzyme without a signal sequence (Man25) was overexpressed in Escherichia coli with a specific activity of 1286.2 U/mg. Moreover, a facile method for β-mannanase activity screening was established based on agar plates. The optimum temperature for the purified Man25 using LBG as a substrate was 55 °C. The catalytic activity and thermostability of Man25 displayed a strong dependence on calcium ions. Through saturation mutagenesis at the putative Ca2+ binding sites in Man25, the best mutant ManM3-3 (D143A) presented improvements in thermostability with 3.6-fold extended half-life at 55 °C compared with that of the wild-type. The results suggest that mutagenesis at metal binding sites could be an efficient approach to increase enzyme thermostability.
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Affiliation(s)
- Muzi Zhu
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Institute of Microbiology , Guangdong Academy of Sciences , Guangzhou 510070 , China
| | | | - Fang Yang
- Integrative Microbiology Research Centre , South China Agricultural University , Guangzhou 510642 , China
| | | | | | | | | | - Jianjun Li
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Institute of Microbiology , Guangdong Academy of Sciences , Guangzhou 510070 , China
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13
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Mary PR, Prashanth KH, Vasu P, Kapoor M. Structural diversity and prebiotic potential of short chain β-manno-oligosaccharides generated from guar gum by endo-β-mannanase (ManB-1601). Carbohydr Res 2019; 486:107822. [DOI: 10.1016/j.carres.2019.107822] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 05/01/2019] [Accepted: 09/18/2019] [Indexed: 12/28/2022]
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14
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Blibech M, Mouelhi S, Farhat‐Khemakhem A, Boukhris I, Ayeb AE, Chouayekh H. Selection of
Bacillus subtilis
US191 as a mannanase‐producing probiotic candidate. Biotechnol Appl Biochem 2019; 66:858-869. [DOI: 10.1002/bab.1798] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 07/07/2019] [Indexed: 12/29/2022]
Affiliation(s)
- Monia Blibech
- Laboratoire de Microorganismes et de Biomolécules, Centre de Biotechnologie de Sfax Université de Sfax Sfax Tunisia
| | - Sana Mouelhi
- Laboratoire de Microorganismes et de Biomolécules, Centre de Biotechnologie de Sfax Université de Sfax Sfax Tunisia
| | - Ameny Farhat‐Khemakhem
- Laboratoire de Microorganismes et de Biomolécules, Centre de Biotechnologie de Sfax Université de Sfax Sfax Tunisia
| | - Ines Boukhris
- Laboratoire de Microorganismes et de Biomolécules, Centre de Biotechnologie de Sfax Université de Sfax Sfax Tunisia
| | - Afef El Ayeb
- Laboratoire de Microorganismes et de Biomolécules, Centre de Biotechnologie de Sfax Université de Sfax Sfax Tunisia
| | - Hichem Chouayekh
- Laboratoire de Microorganismes et de Biomolécules, Centre de Biotechnologie de Sfax Université de Sfax Sfax Tunisia
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15
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Variations of organic matters and extracellular enzyme activities during biodrying of dewatered sludge with different bulking agents. Biochem Eng J 2019. [DOI: 10.1016/j.bej.2019.04.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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16
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Salt bridges are pivotal for the kinetic stability of GH26 endo-mannanase (ManB-1601). Int J Biol Macromol 2019; 133:1236-1241. [DOI: 10.1016/j.ijbiomac.2019.04.175] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 04/24/2019] [Accepted: 04/25/2019] [Indexed: 11/21/2022]
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17
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Bågenholm V, Wiemann M, Reddy SK, Bhattacharya A, Rosengren A, Logan DT, Stålbrand H. A surface-exposed GH26 β-mannanase from Bacteroides ovatus: Structure, role, and phylogenetic analysis of BoMan26B. J Biol Chem 2019; 294:9100-9117. [PMID: 31000630 PMCID: PMC6556568 DOI: 10.1074/jbc.ra118.007171] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 04/17/2019] [Indexed: 12/27/2022] Open
Abstract
The galactomannan utilization locus (BoManPUL) of the human gut bacterium Bacteroides ovatus encodes BoMan26B, a cell-surface–exposed endomannanase whose functional and structural features have been unclear. Our study now places BoMan26B in context with related enzymes and reveals the structural basis for its specificity. BoMan26B prefers longer substrates and is less restricted by galactose side-groups than the mannanase BoMan26A of the same locus. Using galactomannan, BoMan26B generated a mixture of (galactosyl) manno-oligosaccharides shorter than mannohexaose. Three defined manno-oligosaccharides had affinity for the SusD-like surface–exposed glycan-binding protein, predicted to be implicated in saccharide transport. Co-incubation of BoMan26B and the periplasmic α-galactosidase BoGal36A increased the rate of galactose release by about 10-fold compared with the rate without BoMan26B. The results suggested that BoMan26B performs the initial attack on galactomannan, generating oligosaccharides that after transport to the periplasm are processed by BoGal36A. A crystal structure of BoMan26B with galactosyl-mannotetraose bound in subsites −5 to −2 revealed an open and long active-site cleft with Trp-112 in subsite −5 concluded to be involved in mannosyl interaction. Moreover, Lys-149 in the −4 subsite interacted with the galactosyl side-group of the ligand. A phylogenetic tree consisting of GH26 enzymes revealed four strictly conserved GH26 residues and disclosed that BoMan26A and BoMan26B reside on two distinct phylogenetic branches (A and B). The three other branches contain lichenases, xylanases, or enzymes with unknown activities. Lys-149 is conserved in a narrow part of branch B, and Trp-112 is conserved in a wider group within branch B.
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Affiliation(s)
- Viktoria Bågenholm
- From the Department of Biochemistry and Structural Biology, Lund University P. O. Box 124, S-221 00, Lund, Sweden and
| | - Mathias Wiemann
- From the Department of Biochemistry and Structural Biology, Lund University P. O. Box 124, S-221 00, Lund, Sweden and
| | - Sumitha K Reddy
- the Department of Molecular Sciences, Swedish University of Agricultural Sciences Box 7015, 750 07, Uppsala, Sweden
| | - Abhishek Bhattacharya
- From the Department of Biochemistry and Structural Biology, Lund University P. O. Box 124, S-221 00, Lund, Sweden and
| | - Anna Rosengren
- From the Department of Biochemistry and Structural Biology, Lund University P. O. Box 124, S-221 00, Lund, Sweden and
| | - Derek T Logan
- From the Department of Biochemistry and Structural Biology, Lund University P. O. Box 124, S-221 00, Lund, Sweden and
| | - Henrik Stålbrand
- From the Department of Biochemistry and Structural Biology, Lund University P. O. Box 124, S-221 00, Lund, Sweden and
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18
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Kaira GS, Kapoor M. How substrate subsites in GH26 endo-mannanase contribute towards mannan binding. Biochem Biophys Res Commun 2019; 510:358-363. [DOI: 10.1016/j.bbrc.2019.01.085] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Accepted: 01/18/2019] [Indexed: 01/05/2023]
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19
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Jana UK, Suryawanshi RK, Prajapati BP, Soni H, Kango N. Production optimization and characterization of mannooligosaccharide generating β-mannanase from Aspergillus oryzae. BIORESOURCE TECHNOLOGY 2018; 268:308-314. [PMID: 30092484 DOI: 10.1016/j.biortech.2018.07.143] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 07/26/2018] [Accepted: 07/27/2018] [Indexed: 06/08/2023]
Abstract
A multi-tolerant β-mannanase (ManAo) was produced by Aspergillus oryzae on copra meal, a low-cost agro waste. Under statistically optimized conditions, 4.3-fold increase in β-mannanase production (434 U/gds) was obtained. Purified ManAo had MW ∼34 kDa and specific activity of 335.85 U/mg with optimum activity at 60 °C and at pH 5.0. Activity of ManAo was enhanced by most metal ions and modulators while maximum enhancement was noticed with Ag+ and Triton X-100. Km and Vmax were 2.7 mg/mL and 1388.8 µmol/min/mg for locust bean gum while the enzyme showed lower affinity towards konjac gum (8.8 mg/mL, 555.5 µmol/min/mg). Evaluation of various thermodynamic parameters indicated high-efficiency of the ManAo with activation energy 12.42 KJ/mol and 23.31 KJ/mol towards LBG and konjac gum, respectively. End product analysis of β-mannanase action by fluorescence assisted carbohydrate electrophoresis (FACE) revealed the generation of sugars from DP 1-4 with some higher DP MOS from different mannans.
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Affiliation(s)
- Uttam Kumar Jana
- Department of Microbiology, Dr. Harisingh Gour Vishwavidyalaya (A Central University), Sagar, MP 470003, India
| | - Rahul Kumar Suryawanshi
- Department of Microbiology, Dr. Harisingh Gour Vishwavidyalaya (A Central University), Sagar, MP 470003, India
| | - Bhanu Pratap Prajapati
- Department of Microbiology, Dr. Harisingh Gour Vishwavidyalaya (A Central University), Sagar, MP 470003, India
| | - Hemant Soni
- Department of Microbiology, Dr. Harisingh Gour Vishwavidyalaya (A Central University), Sagar, MP 470003, India
| | - Naveen Kango
- Department of Microbiology, Dr. Harisingh Gour Vishwavidyalaya (A Central University), Sagar, MP 470003, India.
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Mano MCR, Neri-Numa IA, da Silva JB, Paulino BN, Pessoa MG, Pastore GM. Oligosaccharide biotechnology: an approach of prebiotic revolution on the industry. Appl Microbiol Biotechnol 2017; 102:17-37. [DOI: 10.1007/s00253-017-8564-2] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Revised: 09/19/2017] [Accepted: 09/28/2017] [Indexed: 12/25/2022]
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Panwar D, Kaira GS, Kapoor M. Cross-linked enzyme aggregates (CLEAs) and magnetic nanocomposite grafted CLEAs of GH26 endo-β-1,4-mannanase: Improved activity, stability and reusability. Int J Biol Macromol 2017; 105:1289-1299. [PMID: 28768184 DOI: 10.1016/j.ijbiomac.2017.07.154] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 07/19/2017] [Accepted: 07/26/2017] [Indexed: 01/09/2023]
Abstract
A comparative study on immobilization of recombinant endo-β-1,4-mannanase (ManB-1601), using cross-linked aggregated form (MB-C) and novel chitosan magnetic nanocomposites of MB-C (MB-Mag-C) was carried out. FT-IR and Raman spectroscopy were used to confirm the surface modifications while, scanning electron and atomic force microscopy were performed to demonstrate the surface topology and magnetic nature of MB-C and MB-Mag-C. Among MB-C and MB-Mag-C, the former showed better activity and stability in broad range of pH, thermo-stability and kinetic parameters while, the latter showed higher temperature optima and solvent stability. MB-C and MB-Mag-C when compared with free enzyme showed up to 73.2% higher activity (pH 4-9), up to 95.6% higher stability (pH 3-10, 9h incubation at room temperature), up to 15°C higher optimal temperature, higher stability (up to 83%) in the presence of solvents and up to 1.62-fold higher deactivation energy (Ed). Immobilized enzymes were able to repeatedly hydrolyze locust bean gum till 12 cycles and generated predominantly di-, tri- and tetra- species of β-manno-oligosaccharides.
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Affiliation(s)
- Deepesh Panwar
- Department of Protein Chemistry and Technology, CSIR-Central Food Technological Research Institute, Mysuru 570 020, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-CFTRI Campus, Mysuru 570 020, India
| | - Gaurav Singh Kaira
- Department of Protein Chemistry and Technology, CSIR-Central Food Technological Research Institute, Mysuru 570 020, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-CFTRI Campus, Mysuru 570 020, India
| | - Mukesh Kapoor
- Department of Protein Chemistry and Technology, CSIR-Central Food Technological Research Institute, Mysuru 570 020, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-CFTRI Campus, Mysuru 570 020, India.
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Srivastava PK, Panwar D, Prashanth KVH, Kapoor M. Structural Characterization and in Vitro Fermentation of β-Mannooligosaccharides Produced from Locust Bean Gum by GH-26 endo-β-1,4-Mannanase (ManB-1601). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:2827-2838. [PMID: 28225615 DOI: 10.1021/acs.jafc.7b00123] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Size exclusion chromatography of β-mannooligosaccharides (β-MOS) mixtures, obtained from ManB-1601 hydrolysis of locust bean gum, resulted in separation of oligosaccharides with various degrees of polymerization (DP 2, 3, and 5). The oligosaccharides were structurally [ESI-MS, FTIR, XRD, TGA, and NMR (1H and 13C)] and functionally (in vitro fermentation) characterized. DP2 oligosaccharide was composed of two species, (A) mannopyranose β-1,4 mannopyranose and (B) α-1,6-galactosyl-mannopyranose, while DP3 oligosaccharide showed the presence of only one species, i.e. α-d-galactosyl-β-d-mannobiose. ManB-1601 was capable of cleaving near the branch points in the substrate, resulting in oligosaccharides with galactose at the terminal position apart from attacking unsubstituted β-1,4-glycosidic linkages. DP2 and DP3 improved the growth of three out of seven species of Lactobacillus while DP5 resulted in poor growth of all Lactobacillus spp. under in vitro conditions. DP2, DP3, and DP5 were found to inhibit the growth of Escherichia coli, Listeria monocytogenes and Salmonella typhi.
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Affiliation(s)
| | - Deepesh Panwar
- Academy of Scientific and Innovative Research (AcSIR) , CSIR-CFTRI Campus, Mysuru-570 020, India
| | - K V Harish Prashanth
- Academy of Scientific and Innovative Research (AcSIR) , CSIR-CFTRI Campus, Mysuru-570 020, India
| | - Mukesh Kapoor
- Academy of Scientific and Innovative Research (AcSIR) , CSIR-CFTRI Campus, Mysuru-570 020, India
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Production, properties, and applications of endo-β-mannanases. Biotechnol Adv 2017; 35:1-19. [DOI: 10.1016/j.biotechadv.2016.11.001] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Revised: 10/12/2016] [Accepted: 11/07/2016] [Indexed: 12/27/2022]
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Kaira GS, Panwar D, Kapoor M. Recombinant endo-mannanase (ManB-1601) production using agro-industrial residues: Development of economical medium and application in oil extraction from copra. BIORESOURCE TECHNOLOGY 2016; 209:220-227. [PMID: 26970925 DOI: 10.1016/j.biortech.2016.02.133] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 02/27/2016] [Accepted: 02/29/2016] [Indexed: 06/05/2023]
Abstract
Expression of pRSETA manb-1601 construct in Hi-Control Escherichia coli BL21 (DE3) cells improved recombinant endo-mannanase (ManB-1601) production by 2.73-fold (1821±100U/ml). A low-cost, agro-industrial residue supplemented industrial medium for enhanced and economical production of ManB-1601 was developed in two mutual phases. Phase-I revealed the potential of various pre- (induction time: 5h, induction mode: lactose 0.5mM) and post-induction [peptone supplementation: 0.94%(w/v), glycerol 0.123%(v/v)] parameters for enhanced production of ManB-1601 and resulted in 4.61-fold (8406±400U/ml) and 2.53-fold (3.30g/l) higher ManB-1601 and biomass production, respectively. Under phase-II, economization of phase-I medium was carried out by reducing/replacing costly ingredients with solubilized-defatted flax seed meal (S-DFSM), which resulted in 3.25-fold (5926U/ml) higher ManB-1601 production. Industrial potential of ManB-1601 was shown in oil extraction from copra as enzyme treatment led to cracks, peeling, fracturing and smoothening of copra, which facilitated higher (18.75%) oil yield.
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Affiliation(s)
- Gaurav Singh Kaira
- Department of Protein Chemistry and Technology, CSIR-Central Food Technological Research Institute, Mysuru 570 020, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-CFTRI Campus, Mysuru, India
| | - Deepesh Panwar
- Department of Protein Chemistry and Technology, CSIR-Central Food Technological Research Institute, Mysuru 570 020, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-CFTRI Campus, Mysuru, India
| | - Mukesh Kapoor
- Department of Protein Chemistry and Technology, CSIR-Central Food Technological Research Institute, Mysuru 570 020, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-CFTRI Campus, Mysuru, India.
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