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Maurya R, Ali U, Kaul S, Bhaiyya R, Singh RP, Mazumder K. Immobilization of α-transglucosidase on silica-coated magnetic nanoparticles and its application for production of isomaltooligosaccharide from the potato peel. Sci Rep 2023; 13:12708. [PMID: 37543692 PMCID: PMC10404235 DOI: 10.1038/s41598-023-38266-8] [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: 05/02/2023] [Accepted: 07/05/2023] [Indexed: 08/07/2023] Open
Abstract
In this study, the production of isomaltooligosaccharide from potato peel starch was carried out in three steps: liquefaction, saccharification, and transglucosylation. Further, cloning α-transglucosidase gene from Aspergillus niger (GH31 family), transforming into E. coli BL21 (DE3), overexpressing and purifying the resulting protein for the production of α-transglucosidase. The generated α-transglucosidase was then bound with magnetic nanoparticles, which improved reusability up to 5 cycles with more than 60% activity. All the modifications were characterized using the following methods: Fourier transform infra-red analysis, Transmission Electron Microscopy, Field Emission Scanning Electron Microscopy, Energy Dispersive X-ray spectroscopy, X-Ray Diffraction Spectroscopy, Thermogravimetric Analysis, and Dynamic Light Scattering (DLS) analysis. Further, the optimum conditions for transglucosylation were determined by RSM as follows: enzyme-to-substrate ratio 6.9 U g-1, reaction time 9 h, temperature 45 °C, and pH 5.5 with a yield of 70 g l-1 (± 2.1). MALDI-TOF-MS analysis showed DP of the IMOs in ranges of 2-10. The detailed structural characterization of isomaltooligosaccharide by GC-MS and NMR suggested the α-(1 → 4) and α-(1 → 6)-D-Glcp residues as major constituents along with minor α-(1 → 2) and α-(1 → 3) -D-Glcp residues.
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Affiliation(s)
- Rohit Maurya
- National Agri-Food Biotechnology Institute (NABI), Sector-81 (Knowledge City), S.A.S. Nagar, Mohali, Punjab, 140306, India
- Regional Centre for Biotechnology, Faridabad-Gurgaon, Haryana, 121001, India
| | - Usman Ali
- National Agri-Food Biotechnology Institute (NABI), Sector-81 (Knowledge City), S.A.S. Nagar, Mohali, Punjab, 140306, India
| | - Sunaina Kaul
- National Agri-Food Biotechnology Institute (NABI), Sector-81 (Knowledge City), S.A.S. Nagar, Mohali, Punjab, 140306, India
| | - Raja Bhaiyya
- Department of Industrial Biotechnology, Gujarat Biotechnology University, North Gate Gujarat International Finance Tech-City, Gandhinagar, Gujarat, 382355, India
| | - Ravindra Pal Singh
- National Agri-Food Biotechnology Institute (NABI), Sector-81 (Knowledge City), S.A.S. Nagar, Mohali, Punjab, 140306, India
- Department of Industrial Biotechnology, Gujarat Biotechnology University, North Gate Gujarat International Finance Tech-City, Gandhinagar, Gujarat, 382355, India
| | - Koushik Mazumder
- National Agri-Food Biotechnology Institute (NABI), Sector-81 (Knowledge City), S.A.S. Nagar, Mohali, Punjab, 140306, India.
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2
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Preparation of high-quality resistant dextrin through pyrodextrin by a multienzyme complex. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.101701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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3
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Qi X, Shao J, Cheng Y, He X, Li Y, Jia H, Yan M. Biocatalytic synthesis of 2-O-α-D-glucopyranosyl-L-ascorbic acid using an extracellular expressed α-glucosidase from Oryza sativa. Biotechnol J 2021; 16:e2100199. [PMID: 34392609 DOI: 10.1002/biot.202100199] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 07/31/2021] [Accepted: 08/12/2021] [Indexed: 12/18/2022]
Abstract
BACKGROUND 2-O-α-D-Glucopyranosyl-L-ascorbic acid (AA-2G) is an important derivative of L-ascorbic acid (L-AA), which has the distinct advantages of non-reducibility, antioxidation, and reproducible decomposition into L-AA and glucose. Enzymatic synthesis is a preferred method for AA-2G production over alternative chemical synthesis owing to the regioselective glycosylation reaction. α-Glucosidase, an enzyme classed into O-glycoside hydrolases, might be used in glycosylation reactions to synthesize AA-2G. MAIN METHODS AND MAJOR RESULTS Here, an α-glucosidase from Oryza sativa was heterologously produced in Pichia pastoris GS115 and used for biosynthesis of AA-2G with few intermediates and byproducts. The extracellular recombinant α-glucosidase (rAGL) reached 9.11 U mL-1 after fed-batch cultivation for 102 h in a 5 L fermenter. The specific activity of purified rAGL is 49.83 U mg-1 at 37°C and pH 4.0. The optimal temperature of rAGL was 65°C, and it was stable below 55°C. rAGL was active over the range of pH 3.0-7.0, with the maximal activity at pH 4.0. Under the condition of 37°C, pH 4.0, equimolar maltose and ascorbic acid sodium salt, 8.7 ± 0.4 g L-1 of AA-2G was synthesized by rAGL. CONCLUSIONS AND IMPLICATIONS The production of rAGL in P. pastoris was proved to be beneficial in providing enough enzyme and promoting biocatalytic synthesis of AA-2G. These studies lay the basis for the industrial application of α-glucosidase. GRAPHICAL ABSTRACT LAY SUMMARY 2-O-α-D-Glucopyranosyl-L-ascorbic acid (AA-2G) is an important industrial derivative of L-ascorbic acid (L-AA), which has the distinct advantages of non-reducibility, antioxidation, and reproducible decomposition into L-AA and glucose. In this study, the authors characterized an α-glucosidase from Oryza sativa, which was recombinantly produced in Pichia pastoris GS115, and its potential for AA-2G production via transglycosylation of L-AA was investigated. These studies lay the basis for the industrial application of recombinant α-glucosidase.
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Affiliation(s)
- Xuelian Qi
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, People's Republic of China
| | - Junlan Shao
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, People's Republic of China
| | - Yinchu Cheng
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, People's Republic of China
| | - Xiaoying He
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, People's Republic of China
| | - Yan Li
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, People's Republic of China
| | - Honghua Jia
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, People's Republic of China
| | - Ming Yan
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, People's Republic of China
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Raschmanová H, Weninger A, Knejzlík Z, Melzoch K, Kovar K. Engineering of the unfolded protein response pathway in Pichia pastoris: enhancing production of secreted recombinant proteins. Appl Microbiol Biotechnol 2021; 105:4397-4414. [PMID: 34037840 PMCID: PMC8195892 DOI: 10.1007/s00253-021-11336-5] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 04/30/2021] [Accepted: 05/06/2021] [Indexed: 12/14/2022]
Abstract
Folding and processing of proteins in the endoplasmic reticulum (ER) are major impediments in the production and secretion of proteins from Pichia pastoris (Komagataella sp.). Overexpression of recombinant genes can overwhelm the innate secretory machinery of the P. pastoris cell, and incorrectly folded proteins may accumulate inside the ER. To restore proper protein folding, the cell naturally triggers an unfolded protein response (UPR) pathway, which upregulates the expression of genes coding for chaperones and other folding-assisting proteins (e.g., Kar2p, Pdi1, Ero1p) via the transcription activator Hac1p. Unfolded/misfolded proteins that cannot be repaired are degraded via the ER-associated degradation (ERAD) pathway, which decreases productivity. Co-expression of selected UPR genes, along with the recombinant gene of interest, is a common approach to enhance the production of properly folded, secreted proteins. Such an approach, however, is not always successful and sometimes, protein productivity decreases because of an unbalanced UPR. This review summarizes successful chaperone co-expression strategies in P. pastoris that are specifically related to overproduction of foreign proteins and the UPR. In addition, it illustrates possible negative effects on the cell's physiology and productivity resulting from genetic engineering of the UPR pathway. We have focused on Pichia's potential for commercial production of valuable proteins and we aim to optimize molecular designs so that production strains can be tailored to suit a specific heterologous product. KEY POINTS: • Chaperones co-expressed with recombinant genes affect productivity in P. pastoris. • Enhanced UPR may impair strain physiology and promote protein degradation. • Gene copy number of the target gene and the chaperone determine the secretion rate.
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Affiliation(s)
- Hana Raschmanová
- Department of Biotechnology, University of Chemistry and Technology Prague, Prague, Czech Republic.
- Institute of Chemistry and Biotechnology, Zurich University of Applied Sciences ZHAW, Wädenswil, Switzerland.
| | - Astrid Weninger
- Institute of Molecular Biotechnology, Graz University of Technology, Graz, Austria
| | - Zdeněk Knejzlík
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Prague, Czech Republic
| | - Karel Melzoch
- Department of Biotechnology, University of Chemistry and Technology Prague, Prague, Czech Republic
| | - Karin Kovar
- Institute of Chemistry and Biotechnology, Zurich University of Applied Sciences ZHAW, Wädenswil, Switzerland
- daspool Association, Wädenswil, Switzerland
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Kant Bhatia S, Vivek N, Kumar V, Chandel N, Thakur M, Kumar D, Yang YH, Pugazendhi A, Kumar G. Molecular biology interventions for activity improvement and production of industrial enzymes. BIORESOURCE TECHNOLOGY 2021; 324:124596. [PMID: 33440311 DOI: 10.1016/j.biortech.2020.124596] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 12/16/2020] [Accepted: 12/18/2020] [Indexed: 06/12/2023]
Abstract
Metagenomics and directed evolution technology have brought a revolution in search of novel enzymes from extreme environment and improvement of existing enzymes and tuning them towards certain desired properties. Using advanced tools of molecular biology i.e. next generation sequencing, site directed mutagenesis, fusion protein, surface display, etc. now researchers can engineer enzymes for improved activity, stability, and substrate specificity to meet the industrial demand. Although many enzymatic processes have been developed up to industrial scale, still there is a need to overcome limitations of maintaining activity during the catalytic process. In this article recent developments in enzymes industrial applications and advancements in metabolic engineering approaches to improve enzymes efficacy and production are reviewed.
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Affiliation(s)
- Shashi Kant Bhatia
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea; Institute for Ubiquitous Information Technology and Application, Konkuk University, Seoul 05029, Republic of Korea
| | - Narisetty Vivek
- Centre for Climate and Environmental Protection, School of Water, Energy and Environment, Cranfield University, Cranfield MK43 0AL, UK
| | - Vinod Kumar
- Centre for Climate and Environmental Protection, School of Water, Energy and Environment, Cranfield University, Cranfield MK43 0AL, UK
| | - Neha Chandel
- School of Medical and Allied Sciences, GD Goenka University, Gurugram 122103, Haryana, India
| | - Meenu Thakur
- Department of Biotechnology, Shoolini Institute of Life Sciences and Business Management, Solan 173212, Himachal Pradesh, India
| | - Dinesh Kumar
- School of Bioengineering & Food Technology, Shoolini University of Biotechnology and Management Sciences, Solan 173229, Himachal Pradesh, India
| | - Yung-Hun Yang
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea; Institute for Ubiquitous Information Technology and Application, Konkuk University, Seoul 05029, Republic of Korea
| | - Arivalagan Pugazendhi
- Innovative Green Product Synthesis and Renewable Environment Development Research Group, Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho ChiMinh City, Viet Nam
| | - Gopalakrishnan Kumar
- Institute of Chemistry, Bioscience and Environmental Engineering, Faculty of Science and Technology, University of Stavanger, Box 8600 Forus, 4036 Stavanger, Norway; School of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Korea.
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6
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Kumar S, Mutturi S. Expression of a novel α-glucosidase from Aspergillus neoniger in Pichia pastoris and its efficient recovery for synthesis of isomaltooligosaccharides. Enzyme Microb Technol 2020; 141:109653. [DOI: 10.1016/j.enzmictec.2020.109653] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Revised: 08/10/2020] [Accepted: 08/26/2020] [Indexed: 01/22/2023]
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7
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Inulinase hyperproduction by Kluyveromyces marxianus through codon optimization, selection of the promoter, and high-cell-density fermentation for efficient inulin hydrolysis. ANN MICROBIOL 2019. [DOI: 10.1007/s13213-019-01457-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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8
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Wu D, Zhu H, Chu J, Wu J. N-acetyltransferase co-expression increases α-glucosidase expression level in Pichia pastoris. J Biotechnol 2019; 289:26-30. [PMID: 30428383 DOI: 10.1016/j.jbiotec.2018.11.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Revised: 10/08/2018] [Accepted: 11/07/2018] [Indexed: 11/27/2022]
Abstract
Pichia pastoris is subjected to strong oxidative stress in the methanol induction phase. The oxidative stress inflicts severe injury to yeast cells, which causes cell death and reduces protein expression ability. N-acetyltransferase in Saccharomyces cerevisiae can protect yeast cells from damage caused by decreasing reactive oxygen species (ROS) in oxidative pressure environments such as ethanol treatment, freeze-thawing, or heat shock. In this study, N-acetyltransferase from P. pastoris (PpMpr1) was overexpressed for the first time to improve the anti-oxidative stress ability to protect cells from strong ROS damage during the methanol induction phase. Cell viability of the PpMpr1 overexpression strain increased significantly, while biomass was increased by 22.7% at high dissolved oxygen (DO). At the same time, the heterologous α-glucosidase (AGL) expression level at 25% DO was increased by 21.5%. The AGL degradation was greatly relieved in the fermentation supernatant of the PpMpr1 overexpression strain. This study shows that PpMpr1 has a great potential for improvement of anti-oxidative stress ability in P. pastoris and provides a promising recombinant microorganism for industrial production of proteins.
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Affiliation(s)
- Dan Wu
- State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi, 214122, China; School of Biotechnology and Key Laboratory of Industrial Biotechnology Ministry of Education, Jiangnan University, 1800 Lihu Avenue, Wuxi, 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, 1800 Lihu Avenue, Wuxi, 214122, China
| | - Haifeng Zhu
- State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi, 214122, China
| | - Ju Chu
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Jing Wu
- State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi, 214122, China; School of Biotechnology and Key Laboratory of Industrial Biotechnology Ministry of Education, Jiangnan University, 1800 Lihu Avenue, Wuxi, 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, 1800 Lihu Avenue, Wuxi, 214122, China.
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9
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Chen P, Xu R, Wang J, Wu Z, Yan L, Zhao W, Liu Y, Ma W, Shi X, Li H. Starch biotransformation into isomaltooligosaccharides using thermostable alpha-glucosidase from Geobacillus stearothermophilus. PeerJ 2018; 6:e5086. [PMID: 29942709 PMCID: PMC6015754 DOI: 10.7717/peerj.5086] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Accepted: 06/05/2018] [Indexed: 12/28/2022] Open
Abstract
The present study first identified the biotransformation of starch as a novel preparation method was investigated using the alpha-transglucosidase-producing Geobacillus stearothermophilus U2. Subsequently, 5 L- and 20 L-scale fermentations were performed. After isolation and purification, liquid alpha-glucosidase preparations were obtained. Through covalent cross-linking and adsorption cross-linking using chitosan as the carrier and glutaraldehyde as the crosslinking agent, the conditions for immobilization of alpha-glucosidase on chitosan were determined. Moreover, Isomaltooligosaccharides (IMOs) were then prepared using chitosan membrane-immobilized alpha-glucosidase, beta-amylase, pullulanase, fungal alpha-amylase and starch as substrate. The mixed syrup that contained IMOs was evaluated and analyzed by thin-layer chromatography (TLC) and high-performance liquid chromatography (HPLC). In addition, small-scale preparation of IMOs was performed. These results are a strong indication that the alpha-transglucosidase-producing G. stearothermophilus as a potential application technique can be successfully used to prepare industrial IMOs.
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Affiliation(s)
- Peng Chen
- School of Pharmacy, Lanzhou University, Lanzhou, Gansu, PR China.,School of Medicine, Yale University, New Haven, CT, United States of America
| | - Ruixiang Xu
- School of Pharmacy, Lanzhou University, Lanzhou, Gansu, PR China
| | - Jianhui Wang
- School of Medicine, Yale University, New Haven, CT, United States of America
| | - Zhengrong Wu
- School of Pharmacy, Lanzhou University, Lanzhou, Gansu, PR China
| | - Lei Yan
- College of Life Science and Technology, Heilongjiang August First Land Reclamation University, Heilongjiang, PR China
| | - Wenbin Zhao
- School of Pharmacy, Lanzhou University, Lanzhou, Gansu, PR China
| | - Yuheng Liu
- School of Pharmacy, Lanzhou University, Lanzhou, Gansu, PR China
| | - Wantong Ma
- School of Pharmacy, Lanzhou University, Lanzhou, Gansu, PR China
| | - Xiaofeng Shi
- Gansu Academy of Medical Science, Lanzhou, PR China
| | - Hongyu Li
- School of Pharmacy, Lanzhou University, Lanzhou, Gansu, PR China
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10
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Su L, Ji D, Tao X, Yu L, Wu J, Xia Y. Recombinant expression, characterization, and application of a phospholipase B from Fusarium oxysporum. J Biotechnol 2017; 242:92-100. [DOI: 10.1016/j.jbiotec.2016.12.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Revised: 11/20/2016] [Accepted: 12/07/2016] [Indexed: 02/06/2023]
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11
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Recent advances of molecular toolbox construction expand Pichia pastoris in synthetic biology applications. World J Microbiol Biotechnol 2016; 33:19. [PMID: 27905091 DOI: 10.1007/s11274-016-2185-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2016] [Accepted: 11/24/2016] [Indexed: 10/20/2022]
Abstract
Pichia pastoris: (reclassified as Komagataella phaffii), a methylotrophic yeast strain has been widely used for heterologous protein production because of its unique advantages, such as readily achievable high-density fermentation, tractable genetic modifications and typical eukaryotic post-translational modifications. More recently, P. pastoris as a metabolic pathway engineering platform has also gained much attention. In this mini-review, we addressed recent advances of molecular toolboxes, including synthetic promoters, signal peptides, and genome engineering tools that established for P. pastoris. Furthermore, the applications of P. pastoris towards synthetic biology were also discussed and prospected especially in the context of genome-scale metabolic pathway analysis.
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12
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Enhancing production of lipase MAS1 from marine Streptomyces sp. strain in Pichia pastoris by chaperones co-expression. ELECTRON J BIOTECHN 2016. [DOI: 10.1016/j.ejbt.2016.06.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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13
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Xu Y, Wu J, Zheng K, Wu D. A xylanase from Streptomyces sp. FA1: heterologous expression, characterization, and its application in Chinese steamed bread. ACTA ACUST UNITED AC 2016; 43:663-70. [DOI: 10.1007/s10295-016-1736-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Accepted: 01/10/2016] [Indexed: 10/22/2022]
Abstract
Abstract
Xylanases (EC 3.2.1.8) are hydrolytic enzymes that have found widespread application in the food, feed, and paper-pulp industries. Streptomyces sp. FA1 xynA was expressed as a secreted protein in Pichia pastoris, and the xylanase was applied to the production of Chinese steamed bread for the first time. The optimal pH and the optimal temperature of XynA were 5.5 and 60 °C, respectively. Using beechwood as substrate, the K m and V max were 2.408 mg mL−1 and 299.3 µmol min−1 mg−1, respectively. Under optimal conditions, a 3.6-L bioreactor produced 1374 U mL−1 of XynA activity at a protein concentration of 6.3 g L−1 after 132 h of fermentation. Use of recombinant XynA led to a greater increase in the specific volume of the CSB than could be achieved using commercial xylanase under optimal conditions. This study provides the basis for the application of the enzyme in the baking industry.
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Affiliation(s)
- Yang Xu
- grid.258151.a 0000000107081323 State Key Laboratory of Food Science and Technology Jiangnan University 1800 Lihu Avenue 214122 Wuxi China
- grid.258151.a 0000000107081323 School of Biotechnology and Key Laboratory of Industrial Biotechnology Ministry of Education Jiangnan University 1800 Lihu Avenue 214122 Wuxi China
| | - Jing Wu
- grid.258151.a 0000000107081323 State Key Laboratory of Food Science and Technology Jiangnan University 1800 Lihu Avenue 214122 Wuxi China
- grid.258151.a 0000000107081323 School of Biotechnology and Key Laboratory of Industrial Biotechnology Ministry of Education Jiangnan University 1800 Lihu Avenue 214122 Wuxi China
| | - Kaixuan Zheng
- grid.258151.a 0000000107081323 School of Biotechnology and Key Laboratory of Industrial Biotechnology Ministry of Education Jiangnan University 1800 Lihu Avenue 214122 Wuxi China
| | - Dan Wu
- grid.258151.a 0000000107081323 State Key Laboratory of Food Science and Technology Jiangnan University 1800 Lihu Avenue 214122 Wuxi China
- grid.258151.a 0000000107081323 School of Biotechnology and Key Laboratory of Industrial Biotechnology Ministry of Education Jiangnan University 1800 Lihu Avenue 214122 Wuxi China
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14
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Ma ZC, Liu NN, Chi Z, Liu GL, Chi ZM. Genetic Modification of the Marine-Isolated Yeast Aureobasidium melanogenum P16 for Efficient Pullulan Production from Inulin. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2015; 17:511-522. [PMID: 25985744 DOI: 10.1007/s10126-015-9638-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Accepted: 04/28/2015] [Indexed: 06/04/2023]
Abstract
In this study, in order to directly and efficiently convert inulin into pullulan, the INU1 gene from Kluyveromyces maximum KM was integrated into the genomic DNA and actively expressed in the high pullulan producer Aureobasidium melanogenum P16 isolated from the mangrove ecosystem. After the ability to produce pullulan from inulin by different transformants was examined, it was found that the recombinant strain EI36, one of the transformants, produced 40.92 U/ml of inulinase activity while its wild-type strain P16 only yielded 7.57 U/ml of inulinase activity. Most (99.27 %) of the inulinase produced by the recombinant strain EI36 was secreted into the culture. During the 10-l fermentation, 70.57 ± 1.3 g/l of pullulan in the fermented medium was attained from inulin (138.0 g/l) within 108 h, high inulinase activity (42.03 U/ml) was produced within 60 h, the added inulin was actively hydrolyzed by the secreted inulinase, and most of the reducing sugars were used by the recombinant strain EI36. This confirmed that the genetically engineered yeast of A. melanogenum strain P16 was suitable for direct pullulan production from inulin.
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Affiliation(s)
- Zai-Chao Ma
- Unesco Chinese Center of Marine Biotechnology, Ocean University of China, Yushan Road, No. 5, Qingdao, China
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15
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Charoenrat T, Sangprapai K, Promdonkoy P, Kocharin K, Tanapongpipat S, Roongsawang N. Enhancement of thermostable β-glucosidase production in a slow methanol utilization strain of Pichia pastoris by optimization of the specific methanol supply rate. BIOTECHNOL BIOPROC E 2015. [DOI: 10.1007/s12257-014-0686-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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16
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Quo vadis? The challenges of recombinant protein folding and secretion in Pichia pastoris. Appl Microbiol Biotechnol 2015; 99:2925-38. [DOI: 10.1007/s00253-015-6470-z] [Citation(s) in RCA: 95] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2014] [Revised: 02/05/2015] [Accepted: 02/08/2015] [Indexed: 10/23/2022]
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17
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Enhanced expression of the codon-optimized exo-inulinase gene from the yeast Meyerozyma guilliermondii in Saccharomyces sp. W0 and bioethanol production from inulin. Appl Microbiol Biotechnol 2014; 98:9129-38. [DOI: 10.1007/s00253-014-6079-7] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Revised: 08/30/2014] [Accepted: 09/02/2014] [Indexed: 10/24/2022]
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18
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Delic M, Göngrich R, Mattanovich D, Gasser B. Engineering of protein folding and secretion-strategies to overcome bottlenecks for efficient production of recombinant proteins. Antioxid Redox Signal 2014; 21:414-37. [PMID: 24483278 DOI: 10.1089/ars.2014.5844] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
SIGNIFICANCE Recombinant protein production has developed into a huge market with enormous positive implications for human health and for the future direction of a biobased economy. Limitations in the economic and technical feasibility of production processes are often related to bottlenecks of in vivo protein folding. RECENT ADVANCES Based on cell biological knowledge, some major bottlenecks have been overcome by the overexpression of molecular chaperones and other folding related proteins, or by the deletion of deleterious pathways that may lead to misfolding, mistargeting, or degradation. CRITICAL ISSUES While important success could be achieved by this strategy, the list of reported unsuccessful cases is disappointingly long and obviously dependent on the recombinant protein to be produced. Singular engineering of protein folding steps may not lead to desired results if the pathway suffers from several limitations. In particular, the connection between folding quality control and proteolytic degradation needs further attention. FUTURE DIRECTIONS Based on recent understanding that multiple steps in the folding and secretion pathways limit productivity, synergistic combinations of the cell engineering approaches mentioned earlier need to be explored. In addition, systems biology-based whole cell analysis that also takes energy and redox metabolism into consideration will broaden the knowledge base for future rational engineering strategies.
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Affiliation(s)
- Marizela Delic
- 1 Department of Biotechnology, University of Natural Resources and Life Sciences (BOKU) , Vienna, Austria
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He M, Wu D, Wu J, Chen J. Enhanced expression of endoinulinase from Aspergillus niger by codon optimization in Pichia pastoris and its application in inulooligosaccharide production. ACTA ACUST UNITED AC 2014; 41:105-14. [DOI: 10.1007/s10295-013-1341-z] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Accepted: 09/05/2013] [Indexed: 11/29/2022]
Abstract
Abstract
In the present study, the endoinulinase gene (EnInu) from Aspergillus niger CICIM F0620 was optimized according to the codon usage of Pichia pastoris and both the native and the optimized gene were expressed in P. pastoris. Use of the optimized gene resulted in the secretion of recombinant endoinulinase activity that reached 1,349 U ml−1, 4.18 times that observed using the native gene. This is the highest endoinulinase activity reported to date. The recombinant enzyme was optimally active at pH 6.0 and 60 °C. Moreover, inulooligosaccharides production from inulin was studied using the recombinant enzyme produced from the optimized gene. After 8 h under optimal conditions, which included 400 g l−1 inulin, an enzyme concentration of 40 U g−1 substrate, 50 °C and pH 6.0, the inulooligosaccharide yield was 91 %. The high substrate concentration and short reaction time described here should reduce production costs distinctly, compared with the conditions used in previous studies. Thus, this study may provide the basis for the industrial use of this recombinant endoinulinase for the production of inulooligosaccharides.
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Affiliation(s)
- Miao He
- grid.258151.a 0000000107081323 State Key Laboratory of Food Science and Technology Jiangnan University 1800 Lihu Ave 214122 Wuxi People’s Republic of China
- grid.258151.a 0000000107081323 School of Biotechnology and Key Laboratory of Industrial Biotechnology, Ministry of Education Jiangnan University 1800 Lihu Ave 214122 Wuxi People’s Republic of China
| | - Dan Wu
- grid.258151.a 0000000107081323 State Key Laboratory of Food Science and Technology Jiangnan University 1800 Lihu Ave 214122 Wuxi People’s Republic of China
- grid.258151.a 0000000107081323 School of Biotechnology and Key Laboratory of Industrial Biotechnology, Ministry of Education Jiangnan University 1800 Lihu Ave 214122 Wuxi People’s Republic of China
| | - Jing Wu
- grid.258151.a 0000000107081323 State Key Laboratory of Food Science and Technology Jiangnan University 1800 Lihu Ave 214122 Wuxi People’s Republic of China
- grid.258151.a 0000000107081323 School of Biotechnology and Key Laboratory of Industrial Biotechnology, Ministry of Education Jiangnan University 1800 Lihu Ave 214122 Wuxi People’s Republic of China
| | - Jian Chen
- grid.258151.a 0000000107081323 State Key Laboratory of Food Science and Technology Jiangnan University 1800 Lihu Ave 214122 Wuxi People’s Republic of China
- grid.258151.a 0000000107081323 School of Biotechnology and Key Laboratory of Industrial Biotechnology, Ministry of Education Jiangnan University 1800 Lihu Ave 214122 Wuxi People’s Republic of China
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