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Li Y, Yan Y, Chen J, Zhang Z, Hu W. Enhancement effect of l-cysteine on lactic acid fermentation production. Biotechnol J 2023; 18:e2300110. [PMID: 37533375 DOI: 10.1002/biot.202300110] [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: 03/09/2023] [Revised: 07/11/2023] [Accepted: 08/01/2023] [Indexed: 08/04/2023]
Abstract
BACKGROUND Environmental stress resistance is still a bottleneck for economical process for l-lactic acid fermentation. Chronological lifespan (CLS) extension has represented a promising strategy for improving stress resistance of microbial cell factories. MAIN METHODS AND MAJOR RESULTS In this study, addition of anti-aging drug cysteine, a kind of extending CLS of microbial cell factories, was systematically evaluated on cell viability and l-lactic acid production in Bacillus coagulans CICC 23843. The results revealed that 16 mm l-cysteine supplement significantly improved l-lactic acid titer in B. coagulans. The enhanced total antioxidant capacity (T-AOC) and key enzymes activities involving in glycolytic pathway as well as differentially expressed genes involved in cysteine synthesize and cysteine precursor synthesize pathways, and fatty acid degradation pathway may help to further understand the relative mechanism of l-cysteine effect on improving l-lactic acid accumulation. Finally, based on 16 mm l-cysteine supplement, a final l-lactic acid titer of 130.5 g L-1 with l-lactic acid productivity of 4.07 g L-1 h-1 and the conversion rate of 0.94 g g-1 total sugar was achieved in a 5 L bioreactor. CONCLUSIONS AND IMPLICATIONS This study provided a valuable option for engineering lactic acid bacteria lifespan for enhancement of lactic acid yield.
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Affiliation(s)
- Yongda Li
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou, P.R. China
| | - Yongli Yan
- Department of Biophysics, Institute of Modern Physics, Chinese, Academy of Sciences, Lanzhou, P.R. China
- University of Chinese Academy of Sciences, Beijing, P.R. China
| | - Jihong Chen
- Department of Biophysics, Institute of Modern Physics, Chinese, Academy of Sciences, Lanzhou, P.R. China
- University of Chinese Academy of Sciences, Beijing, P.R. China
| | - Zhen Zhang
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou, P.R. China
| | - Wei Hu
- Department of Biophysics, Institute of Modern Physics, Chinese, Academy of Sciences, Lanzhou, P.R. China
- University of Chinese Academy of Sciences, Beijing, P.R. China
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Sharma VK, Hutchison JM, Allgeier AM. Redox Biocatalysis: Quantitative Comparisons of Nicotinamide Cofactor Regeneration Methods. CHEMSUSCHEM 2022; 15:e202200888. [PMID: 36129761 PMCID: PMC10029092 DOI: 10.1002/cssc.202200888] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 08/06/2022] [Indexed: 06/15/2023]
Abstract
Enzymatic processes, particularly those capable of performing redox reactions, have recently been of growing research interest. Substrate specificity, optimal activity at mild temperatures, high selectivity, and yield are among the desirable characteristics of these oxidoreductase catalyzed reactions. Nicotinamide adenine dinucleotide (phosphate) or NAD(P)H-dependent oxidoreductases have been extensively studied for their potential applications like biosynthesis of chiral organic compounds, construction of biosensors, and pollutant degradation. One of the main challenges associated with making these processes commercially viable is the regeneration of the expensive cofactors required by the enzymes. Numerous efforts have pursued enzymatic regeneration of NAD(P)H by coupling a substrate reduction with a complementary enzyme catalyzed oxidation of a co-substrate. While offering excellent selectivity and high total turnover numbers, such processes involve complicated downstream product separation of a primary product from the coproducts and impurities. Alternative methods comprising chemical, electrochemical, and photochemical regeneration have been developed with the goal of enhanced efficiency and operational simplicity compared to enzymatic regeneration. Despite the goal, however, the literature rarely offers a meaningful comparison of the total turnover numbers for various regeneration methodologies. This comprehensive Review systematically discusses various methods of NAD(P)H cofactor regeneration and quantitatively compares performance across the numerous methods. Further, fundamental barriers to enhanced cofactor regeneration in the various methods are identified, and future opportunities are highlighted for improving the efficiency and sustainability of commercially viable oxidoreductase processes for practical implementation.
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Affiliation(s)
- Victor K Sharma
- Chemical and Petroleum Engineering, The University of Kansas, 1530 W 15th St, 66045, Lawrence, Kansas, United States
| | - Justin M Hutchison
- Civil, Environmental and Architectural Engineering, The University of Kansas, 1530 W 15th St, 66045, Lawrence, Kansas, United States
| | - Alan M Allgeier
- Chemical and Petroleum Engineering, The University of Kansas, 1530 W 15th St, 66045, Lawrence, Kansas, United States
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Review of recent developments (2018–2020) on acetylcholinesterase inhibition based biosensors for organophosphorus pesticides detection. Microchem J 2021. [DOI: 10.1016/j.microc.2020.105779] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Microbial cell surface display of oxidoreductases: Concepts and applications. Int J Biol Macromol 2020; 165:835-841. [DOI: 10.1016/j.ijbiomac.2020.09.237] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 09/21/2020] [Accepted: 09/27/2020] [Indexed: 12/17/2022]
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Chen R, Wei Q, Wei X, Liu Y, Zhang X, Chen X, Yin X, Xie T. Stable and efficient immobilization of bi-enzymatic NADPH cofactor recycling system under consecutive microwave irradiation. PLoS One 2020; 15:e0242564. [PMID: 33206717 PMCID: PMC7673530 DOI: 10.1371/journal.pone.0242564] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 11/05/2020] [Indexed: 02/07/2023] Open
Abstract
One of the challenges in biocatalysis is the development of stable and efficient bi-enzymatic cascades for bio-redox reactions coupled to the recycling of soluble cofactors. Aldo-keto reductase (LEK) and glucose dehydrogenase (GDH) can be utilized as the NADPH recycling system for economic and efficient biocatalysis of (R)-4-chloro-3-hydroxybutanoate ((R)-CHBE), an important chiral pharmaceutical intermediate. The LEK and GDH was efficiently co-immobilized in mesocellular siliceous foams (MCFs) under microwave irradiation (CoLG-MIA). while they were also co-immobilized by entrapment in calcium alginate without MIA as control (CoLG-CA). The relative activity of CoLG-MIA was increased to 140% compared with that of free LEK. The CoLG-MIA exhibited a wider range of pH and temperature stabilities compared with other preparations. The thermal, storage and batch operational stabilities of microwave-assisted immobilized LEK-GDH were also improved. The NADPH recycling system exhibited the potential as the stable and efficient catalyst for the industrial preparation of (R)-CHBE.
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Affiliation(s)
- Rong Chen
- Key Laboratory of Elemene Class Anti-cancer Chinese Medicine of Zhejiang Province, Engineering Laboratory of Development and Application of Traditional Chinese Medicine from Zhejiang Province, Holistic Integrative Pharmacy Institutes, School of Medicine, Hangzhou Normal University, Hangzhou, P. R. China
- Faculty of Preventive Medicine of Medical College, Hangzhou Normal University, Hangzhou, P. R. China
| | - Qiuhui Wei
- Key Laboratory of Elemene Class Anti-cancer Chinese Medicine of Zhejiang Province, Engineering Laboratory of Development and Application of Traditional Chinese Medicine from Zhejiang Province, Holistic Integrative Pharmacy Institutes, School of Medicine, Hangzhou Normal University, Hangzhou, P. R. China
| | - Xin Wei
- Key Laboratory of Elemene Class Anti-cancer Chinese Medicine of Zhejiang Province, Engineering Laboratory of Development and Application of Traditional Chinese Medicine from Zhejiang Province, Holistic Integrative Pharmacy Institutes, School of Medicine, Hangzhou Normal University, Hangzhou, P. R. China
| | - Yuheng Liu
- Key Laboratory of Elemene Class Anti-cancer Chinese Medicine of Zhejiang Province, Engineering Laboratory of Development and Application of Traditional Chinese Medicine from Zhejiang Province, Holistic Integrative Pharmacy Institutes, School of Medicine, Hangzhou Normal University, Hangzhou, P. R. China
| | - Xiaomin Zhang
- Key Laboratory of Elemene Class Anti-cancer Chinese Medicine of Zhejiang Province, Engineering Laboratory of Development and Application of Traditional Chinese Medicine from Zhejiang Province, Holistic Integrative Pharmacy Institutes, School of Medicine, Hangzhou Normal University, Hangzhou, P. R. China
| | - Xiabin Chen
- Key Laboratory of Elemene Class Anti-cancer Chinese Medicine of Zhejiang Province, Engineering Laboratory of Development and Application of Traditional Chinese Medicine from Zhejiang Province, Holistic Integrative Pharmacy Institutes, School of Medicine, Hangzhou Normal University, Hangzhou, P. R. China
| | - Xiaopu Yin
- Key Laboratory of Elemene Class Anti-cancer Chinese Medicine of Zhejiang Province, Engineering Laboratory of Development and Application of Traditional Chinese Medicine from Zhejiang Province, Holistic Integrative Pharmacy Institutes, School of Medicine, Hangzhou Normal University, Hangzhou, P. R. China
| | - Tian Xie
- Key Laboratory of Elemene Class Anti-cancer Chinese Medicine of Zhejiang Province, Engineering Laboratory of Development and Application of Traditional Chinese Medicine from Zhejiang Province, Holistic Integrative Pharmacy Institutes, School of Medicine, Hangzhou Normal University, Hangzhou, P. R. China
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Li T, Li R, Zhu T, Cui X, Li C, Cui Y, Wu B. Improving the System Performance of the Asymmetric Biosynthesis of d-Pantoic Acid by Using Artificially Self-Assembled Enzymes in Escherichia coli. ACS Biomater Sci Eng 2019; 6:219-224. [DOI: 10.1021/acsbiomaterials.9b01754] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tao Li
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China
- University of Chinese Academy of Sciences, Beijing 100101, PR China
| | - Ruifeng Li
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China
- University of Chinese Academy of Sciences, Beijing 100101, PR China
| | - Tong Zhu
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China
- University of Chinese Academy of Sciences, Beijing 100101, PR China
| | - Xuexian Cui
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China
- University of Chinese Academy of Sciences, Beijing 100101, PR China
| | - Chuijian Li
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China
| | - Yinglu Cui
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China
| | - Bian Wu
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China
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Liang B, Han L. Displaying of acetylcholinesterase mutants on surface of yeast for ultra-trace fluorescence detection of organophosphate pesticides with gold nanoclusters. Biosens Bioelectron 2019; 148:111825. [PMID: 31677527 DOI: 10.1016/j.bios.2019.111825] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 10/24/2019] [Accepted: 10/25/2019] [Indexed: 01/25/2023]
Abstract
Acetylcholinesterase (AChE) has been widely applied on the enzyme inhibition-based detection of organophosphate pesticides (OPs). To improve the sensitivity of fluorometric OPs assay, great efforts were made to change the fluorometric probes or analytical strategies rather than improve the sensitivity of AChE towards OPs. In this work, AChE wild-type (WT) and mutants (E69Y and E69Y/F330L) from Drosophila were successfully displayed on the surface of yeast through a-agglutinin-mediated microbial surface display system. The location of AChE on yeast surface was confirmed by immunofluorescence analysis. Further, a fluorescence OPs detection method was developed by combining yeast surface-displayed AChE mutants and protein-directed electronegative fluorescent gold nanoclusters (Au NCs). Yeast surface-displayed AChE can catalyze the hydrolysis of acetylthiocholine to produce thiocholine. The electropositive thiocholine can not only bind with AuNCs by Au-S bond but also absorb Au NCs by the electrostatic interaction, leading to the aggregation of AuNCs and corresponding fluorescence quenching. When AChE was incubated with paraoxon, a typical model of OPs, the activity of AChE was inhibited and the thiocholine-induced aggregation of AuNCs was reduced. The fluorescence assay based on Au NCs and yest-AChE-E69Y/F330L exhibited the ultra-sensitivity for ultra-trace OPs and 2-6 orders of magnitude lower detection limit (3.3 × 10-14 M) than those of AChE-WT-based method and other reported methods. In addition, the proposed method showed excellent reliability for the real samples assay. This work would provide an alternative strategy for the improvement of bio-analysis at its source.
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Affiliation(s)
- Bo Liang
- College of Life Sciences, College of Chemistry and Pharmaceutical Sciences, Shandong Province Key Laboratory of Applied Mycology, Qingdao Agricultural University, 700 Changcheng Road, Qingdao, Shandong, 266109, China
| | - Lei Han
- College of Life Sciences, College of Chemistry and Pharmaceutical Sciences, Shandong Province Key Laboratory of Applied Mycology, Qingdao Agricultural University, 700 Changcheng Road, Qingdao, Shandong, 266109, China.
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Han L, Liang B. New approaches to NAD(P)H regeneration in the biosynthesis systems. World J Microbiol Biotechnol 2018; 34:141. [PMID: 30203299 DOI: 10.1007/s11274-018-2530-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Accepted: 08/31/2018] [Indexed: 12/13/2022]
Abstract
Nicotinamide adenine dinucleotide (NADH) and nicotinamide adenine dinucleotide phosphate (NADPH), as two kinds of well-known cofactor, are widely used in the most of enzymatic redox reactions, playing an important role in industrial catalysis. In general, supply of NAD(P)H is a major challenged factor in redox fermentation systems due to its high cost and low stability, which have stimulated the development of NADH regeneration systems in recent years. Until now, a series of NAD(P)H regeneration systems have been developed. This review focuses primarily on new approaches of NAD(P)H cofactor regeneration in the biosynthesis systems, such as single cell in vivo NADH regeneration system, double cell coupling NADH regeneration system, in vitro enzyme-coupled NADH regeneration system, microbial cell surface display NADH regeneration system. Finally, the prospect and tendency of NADH regeneration are discussed.
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Affiliation(s)
- Lei Han
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, 700 Changcheng Road, Qingdao, 266109, China.
| | - Bo Liang
- College of Life Sciences, Energy-Rich Compounds Production by Photosynthesis Carbon Fixation Research Center, Shandong Province Key Laboratory of Applied Mycology, Qingdao Agricultural University, 700 Changcheng Road, Qingdao, 266109, China.
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