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Oliva B, Velasco J, Leila Berto G, Polikarpov I, Cristante de Oliveira L, Segato F. Recombinant cellobiose dehydrogenase from Thermothelomyces thermophilus: Its functional characterization and applicability in cellobionic acid production. BIORESOURCE TECHNOLOGY 2024; 402:130763. [PMID: 38692377 DOI: 10.1016/j.biortech.2024.130763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 04/10/2024] [Accepted: 04/28/2024] [Indexed: 05/03/2024]
Abstract
The fungus Thermothelomyces thermophilus is a thermotolerant microorganism that has been explored as a reservoir for enzymes (hydrolytic enzymes and oxidoreductases). The functional analysis of a recombinant cellobiose dehydrogenase (MtCDHB) from T. thermophilus demonstrated a thermophilic behavior, an optimal pH in alkaline conditions for inter-domain electron transfer, and catalytic activity on cellooligosaccharides with different degree of polymerization. Its applicability was evaluated to the sustainable production of cellobionic acid (CBA), a potential pharmaceutical and cosmetic ingredient rarely commercialized. Dissolving pulp was used as a disaccharide source for MtCDHB. Initially, recombinant exoglucanases (MtCBHI and MtCBHII) from T. thermophilus hydrolyzed the dissolving pulp, resulting in 87% cellobiose yield, which was subsequently converted into CBA by MtCDHB, achieving a 66% CBA yield after 24 h. These findings highlight the potential of MtCDHB as a novel approach to obtaining CBA through the bioconversion of a plant-based source.
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Affiliation(s)
- Bianca Oliva
- Department of Biotechnology, Lorena School of Engineering, University of São Paulo, Lorena, SP, Brazil
| | - Josman Velasco
- Department of Biotechnology, Lorena School of Engineering, University of São Paulo, Lorena, SP, Brazil; Biological Sciences Department, Universidad de los Andes, Bogotá DC, Colombia
| | - Gabriela Leila Berto
- Department of Biotechnology, Lorena School of Engineering, University of São Paulo, Lorena, SP, Brazil
| | - Igor Polikarpov
- São Carlos Institute of Physics, University of São Paulo, São Carlos, SP, Brazil
| | - Leandro Cristante de Oliveira
- Department of Physics, Institute of Biosciences, Humanities and Exact Sciences (IBILCE) São Paulo State University "Júlio de Mesquita Filho" - Unesp - São José do Rio Preto, SP, Brazil
| | - Fernando Segato
- Department of Biotechnology, Lorena School of Engineering, University of São Paulo, Lorena, SP, Brazil.
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Liu J, Kang R, Yang X, Xie H, Cui X, Ren M, Feng X, Meng D. Sustainable cellobionic acid biosynthesis from starch via artificial in vitro synthetic enzymatic biosystem. Int J Biol Macromol 2024; 260:129641. [PMID: 38262552 DOI: 10.1016/j.ijbiomac.2024.129641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 01/01/2024] [Accepted: 01/18/2024] [Indexed: 01/25/2024]
Abstract
Cellobionic acid (CBA), a kind of aldobionic acid, offers potential applications in the fields of pharmaceutical, cosmetic, food, and chemical industry. To tackle the high cost of the substrate cellobiose in CBA production using quinoprotein glucose dehydrogenase, this study developed a coenzyme-free and phosphate-balanced in vitro synthetic enzymatic biosystem (ivSEBS) to enable the sustainable CBA synthesis from cost-effective starch in one-pot via the CBA-synthesis module and gluconic acid-supply module. The metabolic fluxes of this artificial biosystem were strengthened using design-build-test-analysis strategy, which involved exquisite pathway design, meticulous enzyme selection, module validation and integration, and optimization of the key enzyme dosage. Under the optimized conditions, a remarkable concentration of 6.2 g/L CBA was achieved from initial 10 g/L maltodextrin with a starch-to-CBA molar conversion rate of 60 %. Taking into account that the biosystem simultaneously accumulated 3.6 g/L of gluconic acid, the maltodextrin utilization rate was calculated to be 93.3 %. Furthermore, a straightforward scaling-up process was performed to evaluate the industrial potential of this enzymatic biosystem, resulting in a yield of 21.2 g/L CBA from 50 g/L maltodextrin. This study presents an artificial ivSEBS for sustainable production of CBA from inexpensive starch, demonstrating an alternative paradigm for biomanufacturing of other aldobionic acids.
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Affiliation(s)
- Juanjuan Liu
- College of Life Sciences, Yantai University, Yantai 264005, Shandong, China
| | - Runyuan Kang
- College of Life Sciences, Yantai University, Yantai 264005, Shandong, China
| | - Xinyue Yang
- College of Life Sciences, Yantai University, Yantai 264005, Shandong, China
| | - Hanhan Xie
- College of Life Sciences, Yantai University, Yantai 264005, Shandong, China
| | - Xinyu Cui
- College of Life Sciences, Yantai University, Yantai 264005, Shandong, China
| | - Mengfei Ren
- College of Life Sciences, Yantai University, Yantai 264005, Shandong, China
| | - Xinming Feng
- College of Life Sciences, Yantai University, Yantai 264005, Shandong, China.
| | - Dongdong Meng
- College of Life Sciences, Yantai University, Yantai 264005, Shandong, China.
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Bieringer E, García Vázquez U, Klein L, Moretó Bravo N, Tobler M, Weuster-Botz D. Bioproduction and applications of aldobionic acids with a focus on maltobionic and cellobionic acid. Bioprocess Biosyst Eng 2023:10.1007/s00449-023-02872-7. [PMID: 37058246 DOI: 10.1007/s00449-023-02872-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 03/27/2023] [Indexed: 04/15/2023]
Abstract
Aldobionic acids are sugar acids which consist of a disaccharide with an anomeric acid group. The most famous is lactobionic acid (LBA). LBA is used in many applications such as food and beverages, pharmaceuticals and medicine, cosmetics or chemical processes. During the last decade, all these industries are observing a shift of consumer preferences towards plant-based options. Thus, the biotechnological industry is trying to replace the animal-derived LBA. Maltobionic acid (MBA) and cellobionic acid (CBA) are two stereoisomers of LBA which have emerged as vegan alternatives. However, MBA and CBA face different obstacles related to their industrial production. While traditionally used electrochemical or chemical catalysis often rely on cost intensive and/or hazardous catalysts, novel production methods with microorganisms are still poorly studied. In the first part, this paper discusses both alternatives in terms of their characteristics and applications. In the second part, it reviews the long-studied chemical production and the novel bioproduction methods, which are based on enzymatic and microbial systems. This review concludes with a discussion of future work needed to bring their production to the industrial scale.
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Affiliation(s)
- Emmeran Bieringer
- TUM School of Engineering and Design, Department of Energy and Process Engineering, Chair of Biochemical Engineering, Technical University of Munich, Boltzmannstr. 15, 85748, Garching, Germany
| | - Uxía García Vázquez
- TUM School of Engineering and Design, Technical University of Munich, Boltzmannstraße 15, 85748, Garching, Germany
| | - Luisa Klein
- TUM School of Engineering and Design, Technical University of Munich, Boltzmannstraße 15, 85748, Garching, Germany
| | - Núria Moretó Bravo
- TUM School of Natural Sciences, Technical University of Munich, Lichtenbergstraße 4, 85748, Garching, Germany
| | - Matthias Tobler
- TUM Campus Straubing for Biotechnology and Sustainability, Technical University of Munich, Petersgasse 5, 94315, Straubing, Germany
| | - Dirk Weuster-Botz
- TUM School of Engineering and Design, Department of Energy and Process Engineering, Chair of Biochemical Engineering, Technical University of Munich, Boltzmannstr. 15, 85748, Garching, Germany.
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Cho C, Eom GT. Conversion of waste cooked rice into maltose by a Bacillus subtilis-derived maltogenic amylase and production of maltobionic acid from the prepared maltose using genetically modified Pseudomonas taetrolens. Bioprocess Biosyst Eng 2023; 46:273-277. [PMID: 36526877 DOI: 10.1007/s00449-022-02832-7] [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: 08/17/2022] [Accepted: 12/06/2022] [Indexed: 12/23/2022]
Abstract
In this study, we attempted to produce maltobionic acid (MBA) from waste cooked rice (WCR) using maltose as an intermediate. In our previous study, we produced maltose from WCR using a commercial maltogenic amylase (Maltogenase L). However, in the present study, we used wild-type Bacillus subtilis, which inherently produces maltogenic amylase (AmyE), instead of Maltogenase L to produce maltose from WCR. During cultivation of B. subtilis with WCR, maltose was successfully produced by AmyE in the culture medium. To improve maltose production, we constructed a recombinant B. subtilis strain expressing AmyE and used it for maltose production. Following cultivation of the recombinant B. subtilis strain, the maltose production titer (34.6 g/L) increased approximately 3.6-fold that (9.6 g/L) obtained from the cultivation of wild-type B. subtilis. Using Pseudomonas taetrolens, an efficient MBA-producing bacterium, 28.8 g/L of MBA was produced from the prepared maltose (27.6 g/L). The above results indicated that MBA was successfully produced from WCR via a two-step process, which involved the conversion of WCR into maltose by maltogenic amylase-producing B. subtilis and the production of MBA from the WCR-derived maltose by P. taetrolens.
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Affiliation(s)
- Chaeyeon Cho
- Bio-based Chemistry Research Center, Korea Research Institute of Chemical Technology (KRICT), 406-30, Jongga-ro, Ulsan, 44429, Republic of Korea
| | - Gyeong Tae Eom
- Bio-based Chemistry Research Center, Korea Research Institute of Chemical Technology (KRICT), 406-30, Jongga-ro, Ulsan, 44429, Republic of Korea.
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Liu L, Li JT, Li SH, Liu LP, Wu B, Wang YW, Yang SH, Chen CH, Tan FR, He MX. The potential use of Zymomonas mobilis for the food industry. Crit Rev Food Sci Nutr 2022; 64:4134-4154. [PMID: 36345974 DOI: 10.1080/10408398.2022.2139221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Zymomonas mobilis is a gram-negative facultative anaerobic spore, which is generally recognized as a safe. As a promising ethanologenic organism for large-scale bio-ethanol production, Z. mobilis has also shown a good application prospect in food processing and food additive synthesis for its unique physiological characteristics and excellent industrial characteristics. It not only has obvious advantages in food processing and becomes the biorefinery chassis cell for food additives, but also has a certain healthcare effect on human health. Until to now, most of the research is still in theory and laboratory scale, and further research is also needed to achieve industrial production. This review summarized the physiological characteristics and advantages of Z. mobilis in food industry for the first time and further expounds its research status in food industry from three aspects of food additive synthesis, fermentation applications, and prebiotic efficacy, it will provide a theoretical basis for its development and applications in food industry. This review also discussed the shortcomings of its practical applications in the current food industry, and explored other ways to broaden the applications of Z. mobilis in the food industry, to promote its applications in food processing.
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Affiliation(s)
- Lu Liu
- Biomass Energy Technology Research Centre, Key Laboratory of Development and Application of Rural Renewable Energy (Ministry of Agriculture and Rural Affairs), Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu, P.R. China
- College of Food and Bioengineering, Chengdu University, Chengdu, P.R. China
| | - Jian-Ting Li
- Biomass Energy Technology Research Centre, Key Laboratory of Development and Application of Rural Renewable Energy (Ministry of Agriculture and Rural Affairs), Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu, P.R. China
| | - Sheng-Hao Li
- Biomass Energy Technology Research Centre, Key Laboratory of Development and Application of Rural Renewable Energy (Ministry of Agriculture and Rural Affairs), Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu, P.R. China
| | - Lin-Pei Liu
- Biomass Energy Technology Research Centre, Key Laboratory of Development and Application of Rural Renewable Energy (Ministry of Agriculture and Rural Affairs), Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu, P.R. China
| | - Bo Wu
- Biomass Energy Technology Research Centre, Key Laboratory of Development and Application of Rural Renewable Energy (Ministry of Agriculture and Rural Affairs), Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu, P.R. China
| | - Yan-Wei Wang
- Biomass Energy Technology Research Centre, Key Laboratory of Development and Application of Rural Renewable Energy (Ministry of Agriculture and Rural Affairs), Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu, P.R. China
| | - Shi-Hui Yang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, and School of Life Sciences, Hubei University, Wuhan, Hubei, P.R. China
| | - Cheng-Han Chen
- Biomass Energy Technology Research Centre, Key Laboratory of Development and Application of Rural Renewable Energy (Ministry of Agriculture and Rural Affairs), Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu, P.R. China
| | - Fu-Rong Tan
- Biomass Energy Technology Research Centre, Key Laboratory of Development and Application of Rural Renewable Energy (Ministry of Agriculture and Rural Affairs), Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu, P.R. China
| | - Ming-Xiong He
- Biomass Energy Technology Research Centre, Key Laboratory of Development and Application of Rural Renewable Energy (Ministry of Agriculture and Rural Affairs), Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu, P.R. China
- College of Food and Bioengineering, Chengdu University, Chengdu, P.R. China
- Institute of Ecological Environment, Chengdu University of Technology, Chengdu, P.R. China
- Chengdu National Agricultural Science and Technology Center, Chengdu, P.R. China
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Wu J, Liu P, Zheng Z, Ouyang J. Valorization of cheese whey to lactobionic acid by a novel strain Pseudomonas fragi and identification of enzyme involved in lactose oxidation. Microb Cell Fact 2022; 21:184. [PMID: 36076243 PMCID: PMC9461264 DOI: 10.1186/s12934-022-01907-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 08/27/2022] [Indexed: 11/10/2022] Open
Abstract
Background Efficient upgrading of inferior agro-industrial resources and production of bio-based chemicals through a simple and environmentally friendly biotechnological approach is interesting Lactobionic acid is a versatile aldonic acid obtained from the oxidation of lactose. Several microorganisms have been used to produce lactobionic acid from lactose and whey. However, the lactobionic acid production titer and productivity should be further improved to compete with other methods. Results In this study, a new strain, Pseudomonas fragi NL20W, was screened as an outstanding biocatalyst for efficient utilization of waste whey to produce lactobionic acid. After systematic optimization of biocatalytic reactions, the lactobionic acid productivity from lactose increased from 3.01 g/L/h to 6.38 g/L/h in the flask. In batch fermentation using a 3 L bioreactor, the lactobionic acid productivity from whey powder containing 300 g/L lactose reached 3.09 g/L/h with the yield of 100%. Based on whole genome sequencing, a novel glucose dehydrogenase (GDH1) was determined as a lactose-oxidizing enzyme. Heterologous expression the enzyme GDH1 into P. putida KT2440 increased the lactobionic acid yield by 486.1%. Conclusion This study made significant progress both in improving lactobionic acid titer and productivity, and the lactobionic acid productivity from waste whey is superior to the ever reports. This study also revealed a new kind of aldose-oxidizing enzyme for lactose oxidation using P. fragi NL20W for the first time, which laid the foundation for further enhance lactobionic acid production by metabolic engineering. Graphical Abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s12934-022-01907-0.
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Affiliation(s)
- Jiawei Wu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Peng Liu
- School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang, 212003, People's Republic of China
| | - Zhaojuan Zheng
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, People's Republic of China.
| | - Jia Ouyang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, People's Republic of China.
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de Souza RC, da Silva LM, Carra S, Flores M, Puton BM, Malvessi E, Valduga E, Zeni J. High-sodium maltobionate production by immobilized Zymomonas mobilis cells in polyurethane. Bioprocess Biosyst Eng 2022; 45:1465-1476. [PMID: 35876965 DOI: 10.1007/s00449-022-02756-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Accepted: 07/07/2022] [Indexed: 11/30/2022]
Abstract
The purpose of this study was the production of maltobionic acid, in the form of sodium maltobionate, by Z. mobilis cells immobilized in polyurethane. The in situ immobilized system (0.125-0.35 mm) was composed of 7 g polyol, 3.5 g isocyanate, 0.02 g silicone, and 7 g Z. mobilis cell, at the concentration of 210 g/L. The bioconversion of maltose to sodium maltobionate was performed with different cell concentrations (7.0-9.0 gimobilized/Lreaction_medium), temperature (30.54-47.46 °C), pH (5.55-7.25), and substrate concentration (0.7-1.3 mol/L). The stability of the immobilized system was evaluated for 24 h bioconversion cycles and storage of 6 months. The maximum concentration of sodium maltobionate was 648.61 mmol/L in 34.34 h process (8.5 gdry_cell/Lreaction_medium) at 39 °C and pH 6.30. The immobilized system showed stability for 19 successive operational cycles of 24 h bioconversion and 6 months of storage, at 4 °C or 22 °C.
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Affiliation(s)
- Roberta Cristina de Souza
- Department of Food Engineering, Universidade Regional Integrada Do Alto Uruguai E das Missões, CEP: 99709-910, Erechim, RS, Brasil
| | - Leonardo Meirelles da Silva
- Department of Food Engineering, Universidade Regional Integrada Do Alto Uruguai E das Missões, CEP: 99709-910, Erechim, RS, Brasil
| | - Sabrina Carra
- Biotechnology Institute, Universidade de Caxias Do Sul, CEP: 95070-560, Caxias Do Sul, RS, Brasil
| | - Maicon Flores
- Biotechnology Institute, Universidade de Caxias Do Sul, CEP: 95070-560, Caxias Do Sul, RS, Brasil
| | - Bruna Maria Puton
- Department of Food Engineering, Universidade Regional Integrada Do Alto Uruguai E das Missões, CEP: 99709-910, Erechim, RS, Brasil
| | - Eloane Malvessi
- Biotechnology Institute, Universidade de Caxias Do Sul, CEP: 95070-560, Caxias Do Sul, RS, Brasil
| | - Eunice Valduga
- Department of Food Engineering, Universidade Regional Integrada Do Alto Uruguai E das Missões, CEP: 99709-910, Erechim, RS, Brasil
| | - Jamile Zeni
- Department of Food Engineering, Universidade Regional Integrada Do Alto Uruguai E das Missões, CEP: 99709-910, Erechim, RS, Brasil.
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Efficient production of cellobionic acid using whole-cell biocatalyst of genetically modified Pseudomonas taetrolens. Bioprocess Biosyst Eng 2022; 45:1057-1064. [PMID: 35412074 DOI: 10.1007/s00449-022-02725-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 03/28/2022] [Indexed: 11/02/2022]
Abstract
Pseudomonas taetrolens has previously been shown to convert cellobiose to cellobionic acid (CBA), which can potentially be used in cosmetics, food, and pharmaceutical industries. The cellobiose-oxidizing activity of the P. taetrolens strain, which expressed the homologous quinoprotein glucose dehydrogenase (GDH), was increased by approximately 50.8% compared to the original strain. Whole-cell biocatalyst (WCB) of the genetically modified P. taetrolens strain [pDSK-GDH] was prepared simply by fermentation and washing processes. Reaction conditions for the proper use of WCB, such as reaction temperature, cell density to be added, and cell harvest time for preparing WCB, were investigated. The highest CBA productivity (18.2 g/L/h) was achieved when WCB prepared in the late-exponential phase of cell culture was used at 35 °C with cell density of 10 at OD600nm. Under these conditions, 200 g/L of cellobiose was all converted to CBA in 11 h, and the WCB of P. taetrolens [pDSK-GDH] maintained the maximum catalytic activity during at least six cycles without a significant decline in the productivity. Our results suggest that the manufacture of WCB based on genetically engineered P. taetrolens and its optimized use could be further developed as an economically viable option for the large-scale production of CBA.
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Oh YR, Jang YA, Song JK, Eom GT. Whole-cell biocatalysis using genetically modified Pseudomonas taetrolens for efficient production of maltobionic acid from pure maltose and high-maltose corn syrup. Bioprocess Biosyst Eng 2022; 45:901-909. [PMID: 35201399 DOI: 10.1007/s00449-022-02708-w] [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: 09/30/2021] [Accepted: 02/09/2022] [Indexed: 11/30/2022]
Abstract
Maltobionic acid (MBA) can be applied to various fields such as food, cosmetics, and pharmaceutical industries. In this study, whole-cell biocatalysis for MBA production was performed using recombinant Pseudomonas taetrolens homologously expressing quinoprotein glucose dehydrogenase (GDH). Various reaction parameters such as temperature, cell density, and cell harvest time, were optimized for improving MBA production. Under the optimized reaction conditions using pure maltose as a substrate, the MBA production titer, yield, and productivity of whole-cell biocatalyst (WCB) were 200 g/L, 95.6%, and 18.18 g/L/h, respectively, which were the highest compared to those reported previously. Productivity, a key factor for industrial MBA production, obtained from whole-cell biocatalysis in this study, was enhanced by approximately 1.9-fold compared to that obtained in our previous work (9.52 g/L/h) using the fermentation method. Additionally, the WCB could be reused up to six times without a significant reduction in MBA productivity, indicating that the WCB is very robust. Although MBA productivity (8.33 g/L/h) obtained from high-maltose corn syrup (HMCS) as a substrate was 45.8% of that using pure maltose, HMCS can be a better substrate for commercial MBA production because its price is only 1.1% of that of pure maltose. The results of this study using a WCB to convert maltose into MBA may support the development of a potential industrial process for more economically effective MBA production in the future.
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Affiliation(s)
- Yu-Ri Oh
- Bio-based Chemistry Research Center, Korea Research Institute of Chemical Technology (KRICT), Ulsan, 44429, Republic of Korea
| | - Young-Ah Jang
- Bio-based Chemistry Research Center, Korea Research Institute of Chemical Technology (KRICT), Ulsan, 44429, Republic of Korea
| | - Jae Kwang Song
- Bio-based Chemistry Research Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 34114, Republic of Korea
| | - Gyeong Tae Eom
- Bio-based Chemistry Research Center, Korea Research Institute of Chemical Technology (KRICT), Ulsan, 44429, Republic of Korea. .,Advanced Materials and Chemical Engineering, University of Science and Technology (UST), Daejeon, 34113, Republic of Korea.
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Efficient production of cellobionic acid from cellobiose by genetically modified Pseudomonas taetrolens. Biochem Eng J 2022. [DOI: 10.1016/j.bej.2021.108282] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Oh YR, Jang YA, Hong SH, Eom GT. High-level production of maltobionic acid from high-maltose corn syrup by genetically engineered Pseudomonas taetrolens. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2020; 28:e00558. [PMID: 33294406 PMCID: PMC7691556 DOI: 10.1016/j.btre.2020.e00558] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 11/10/2020] [Accepted: 11/11/2020] [Indexed: 11/20/2022]
Abstract
Maltobionic acid (MBA) has recently emerged as an important material in various industries. Here, we showed that quinoprotein glucose dehydrogenase (GDH) from Pseudomonas taetrolens could convert maltose into MBA by heterologously expressing this enzyme in MBA non-producing Escherichia coli. We homologously expressed GDH in P. taetrolens to improve intracellular maltose-oxidizing activity and MBA production. We optimized culture conditions, then applied these conditions to batch fermentation by recombinant P. taetrolens in a 5-L bioreactor. The MBA production, yield, and productivity of batch fermentation using high-maltose corn syrup (HMCS), an inexpensive maltose source, were 200 g/L, 95.6 %, and 6.67 g/L/h, respectively. Although the MBA productivity from HMCS was 70.1 % of that compared with pure maltose as the substrate, HMCS was a better substrate for commercial MBA production, considering the cost was 1.1 % of that of pure maltose. The present findings provide an economically feasible strategy with which to produce MBA.
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Key Words
- DCIP, 2,6-dichlorophenol indophenol
- GDH, quinoprotein glucose dehydrogenase
- HMCS, high-maltose corn syrup
- HPLC, high-performance liquid chromatography
- High-maltose corn syrup
- IPTG, isopropyl-β-D-1-thiogalactopyranoside
- LB, Luria-Bertani
- LBA, lactobionic acid
- MBA, maltobionic acid
- Maltobionic acid
- NB, nutrient broth
- OD, optical density
- PQQ, pyrroloquinoline quinone
- Pseudomonas taetrolens
- Quinoprotein glucose dehydrogenase
- SDS-PAGE, sodium dodecyl sulfate-polyacrylamide gel electrophoresis
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Affiliation(s)
- Yu-Ri Oh
- Bio-based Chemistry Research Center, Korea Research Institute of Chemical Technology (KRICT), 406-30, Jongga-ro, Ulsan, 44429, Republic of Korea
| | - Young-Ah Jang
- Bio-based Chemistry Research Center, Korea Research Institute of Chemical Technology (KRICT), 406-30, Jongga-ro, Ulsan, 44429, Republic of Korea
| | - Soon Ho Hong
- School of Chemical Engineering, University of Ulsan, 93 Daehak-ro, Nam-gu, Ulsan 680-749, Republic of Korea
| | - Gyeong Tae Eom
- Bio-based Chemistry Research Center, Korea Research Institute of Chemical Technology (KRICT), 406-30, Jongga-ro, Ulsan, 44429, Republic of Korea
- Advanced Materials and Chemical Engineering, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
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Habib SM, Jawad-Ur-Rehman, Maharjan R, Kanwal T, Althagafi II, Saifullah S, Ullah S, Simjee SU, Shah MR. Synthesis of lactobionic acid based bola-amphiphiles and its application as nano-carrier for curcumin delivery to cancer cell cultures in-vitro. Int J Pharm 2020; 590:119897. [PMID: 32971176 DOI: 10.1016/j.ijpharm.2020.119897] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 09/14/2020] [Accepted: 09/16/2020] [Indexed: 10/23/2022]
Abstract
Curcumin is highly effective against various types of cancers; however, its low aqueous solubility, high metabolism and non-specificity hinder its efficacy. This study reports the synthesis of three lactobionic acid containing bola-amphiphiles and their investigation for curcumin nano-vesicular delivery into cancer cells. Synthesized bola-amphiphiles were capable of forming nano-vesicles and curcumin loading in a lipophilicity dependent manner. Bola-amphiphile with higher lipophilicity (C12) caused 89.55 ± 5.52% drug encapsulation in its spherical shape nano-vesicles (195.90 ± 0.83 nm). Bola-amphiphile resulting increased curcumin encapsulation with minimum vesicles size was further investigated for cellular uptake and in-vitro anticancer activity. Anticancer activity of curcumin significantly increased against the tested cancer cells upon loading in bola-amphiphile nano-vesicles. Furthermore, nano-vesicular drug delivery of curcumin enhanced its cellular uptake even at the lowest concentration of 1.25 µg/mL.It is concluded that the synthesized bola-amphiphile based nano-vesicles can efficiently deliver curcumin to the tested cancer cells and needs to be tested for established anticancer drugs against different cancer cell lines for effective treatment of cancer.
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Affiliation(s)
- Shahida Muhammad Habib
- H.E.J Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Jawad-Ur-Rehman
- H.E.J Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Rukesh Maharjan
- H.E.J Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Tasmina Kanwal
- H.E.J Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Ismail I Althagafi
- Department of Chemistry, Faculty of Applied Science, Umm Al-qura University, Makkah Almukkaramah, Saudi Arabia
| | - Salim Saifullah
- H.E.J Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Shafi Ullah
- H.E.J Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Shabana Usman Simjee
- H.E.J Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Muhammad Raza Shah
- H.E.J Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan.
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Liu P, Xie J, Tan H, Zhou F, Zou L, Ouyang J. Valorization of Gelidium amansii for dual production of D-galactonic acid and 5-hydroxymethyl-2-furancarboxylic acid by chemo-biological approach. Microb Cell Fact 2020; 19:104. [PMID: 32410635 PMCID: PMC7227364 DOI: 10.1186/s12934-020-01357-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Accepted: 04/26/2020] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Marine macroalgae Gelidium amansii is a promising feedstock for production of sustainable biochemicals to replace petroleum and edible biomass. Different from terrestrial lignocellulosic biomass, G. amansii is comprised of high carbohydrate content and has no lignin. In previous studies, G. amansii biomass has been exploited to obtain fermentable sugars along with suppressing 5-hydroxymethylfurfural (HMF) formation for bioethanol production. In this study, a different strategy was addressed and verified for dual production of D-galactose and HMF, which were subsequently oxidized to D-galactonic acid and 5-hydroxymethyl-2-furancarboxylic acid (HMFCA) respectively via Pseudomonas putida. RESULTS G. amansii biomass was hydrolyzed by dilute acid to form D-galactose and HMF. The best result was attained after pretreatment with 2% (w/w) HCl at 120 °C for 40 min. Five different Pseudomonas sp. strains including P. putida ATCC 47054, P. fragi ATCC 4973, P. stutzeri CICC 10402, P. rhodesiae CICC 21960, and P. aeruginosa CGMCC 1.10712, were screened for highly selective oxidation of D-galactose and HMF. Among them, P. putida ATCC 47054 was the outstanding suitable biocatalyst converting D-galactose and HMF to the corresponding acids without reduced or over-oxidized products. It was plausible that the pyrroloquinoline quinone-dependent glucose dehydrogenase and undiscovered molybdate-dependent enzyme(s) in P. putida ATCC 47054 individually played pivotal role for D-galactose and HMF oxidation. Taking advantage of its excellent efficiency and high selectivity, a maximum of 55.30 g/L D-galactonic acid and 11.09 g/L HMFCA were obtained with yields of 91.1% and 98.7% using G. amansii hydrolysates as substrate. CONCLUSIONS Valorization of G. amansii biomass for dual production of D-galactonic acid and HMFCA can enrich the product varieties and improve the economic benefits. This study also demonstrates the perspective of making full use of marine feedstocks to produce other value-added products.
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Affiliation(s)
- Peng Liu
- College of Forestry, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Jiaxiao Xie
- College of Forestry, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Huanghong Tan
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Feng Zhou
- College of Forestry, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Lihua Zou
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Jia Ouyang
- Key Laboratory of Forestry Genetics & Biotechnology (Nanjing Forestry University), Ministry of Education, Nanjing, 210037, People's Republic of China.
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, People's Republic of China.
- Jiangsu Province Key Laboratory of Green Biomass-based Fuels and Chemicals, Nanjing, 210037, People's Republic of China.
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