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Ma H, Liu X, Nobbs AH, Mishra A, Patil AJ, Mann S. Protocell Flow Reactors for Enzyme and Whole-Cell Mediated Biocatalysis. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2404607. [PMID: 38762764 DOI: 10.1002/adma.202404607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 05/14/2024] [Indexed: 05/20/2024]
Abstract
The design and construction of continuous flow biochemical reactors comprising immobilized biocatalysts have generated great interest in the efficient synthesis of value-added chemicals. Living cells use compartmentalization and reaction-diffusion processes for spatiotemporal regulation of biocatalytic reactions, and implementing these strategies into continuous flow reactors can offer new opportunities in reactor design and application. Herein, the fabrication of protocell-based continuous flow reactors for enzyme and whole-cell mediated biocatalysis is demonstrated. Semipermeable membranized coacervate vesicles are employed as model protocells that spontaneously sequester enzymes or accumulate living bacteria to produce embodied microreactors capable of single- or multiple-step catalytic reactions. By packing millions of the enzyme/bacteria-containing coacervate vesicles in a glass column, a facile, cost-effective, and modular methodology capable of performing oxidoreductase, peroxidase and lipolytic reactions, enzyme-mediated L-DOPA synthesis, and whole-cell glycolysis under continuous flow conditions, is demonstrated. It is shown that the protocell-nested enzymes and bacterial cells exhibit enhanced activities and stability under deleterious operating conditions compared with their non-encapsulated counterparts. These results provide a step toward the engineering of continuous flow reactors based on cell-like microscale agents and offer opportunities in the development of green and sustainable industrial bioprocessing.
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Affiliation(s)
- Huan Ma
- Centre for Organized Matter Chemistry and Centre for Protolife Research, School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
| | - Xiayi Liu
- Bristol Dental School Research Laboratories, University of Bristol, Dorothy Hodgkin Building, Bristol, BS1 3NY, UK
| | - Angela H Nobbs
- Bristol Dental School Research Laboratories, University of Bristol, Dorothy Hodgkin Building, Bristol, BS1 3NY, UK
| | - Ananya Mishra
- Centre for Organized Matter Chemistry and Centre for Protolife Research, School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
- Max Planck-Bristol Centre for Minimal Biology, School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
| | - Avinash J Patil
- Centre for Organized Matter Chemistry and Centre for Protolife Research, School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
| | - Stephen Mann
- Centre for Organized Matter Chemistry and Centre for Protolife Research, School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
- Max Planck-Bristol Centre for Minimal Biology, School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
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2
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Khan A, Jie Z, Wang J, Nepal J, Ullah N, Zhao ZY, Wang PY, Ahmad W, Khan A, Wang W, Li MY, Zhang W, Elsheikh MS, Xiong YC. Ecological risks of microplastics contamination with green solutions and future perspectives. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 899:165688. [PMID: 37490947 DOI: 10.1016/j.scitotenv.2023.165688] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 06/26/2023] [Accepted: 07/19/2023] [Indexed: 07/27/2023]
Abstract
The rise of plasticulture as mulching material in farming systems has raised concerns about microplastics (MPs) in the agricultural landscape. MPs are emerging pollutants in croplands and water systems with significant ecological risks, particularly over the long term. In the soil systems, MPs polymer type, thinness, shape, and size induces numerous effects on soil aggregates, dissolved organic carbon (C), rapidly oxidized organic C, microbial biomass C, microbial biomass nitrogen (N), microbial immobilization, degradation of organic matter, N cycling, and production of greenhouse gas emissions (GHGs), thereby posing a significant risk of impairing soil physical and biochemical properties over time. Further, toxic chemicals released from polyethylene mulching (PMs) might indirectly harm plant growth by affecting soil wetting-drying cycles, releasing toxic substances that interact with soil matrix, and suppressing soil microbial activity. In the environment, accumulation of MPs poses a risk to human health by accelerating emissions of GHGs, e.g., methane and carbon dioxide, or directly releasing toxic substances such as phthalic acid esters (PAEs) into the soils. Also, larger sizes MPs can adhere to root surface and block stomata could significantly change the shape of root epidermal cells resulting in arrest plant growth and development by restricting water-nutrient uptake, and gene expression and altering the biodiversity of the soil pollutants. In this review, we systematically analyzed the potential risks of MPs to the soil-plant and human body, their occurrence, abundance, and migration in agroecosystems. Further, the impacts of MPs on soil microbial function, nutrient cycling, soil C, and GHGs are mechanistically reviewed, with emphasis on potential green solutions such as organic materials amendments along with future research directions for more eco-friendly and sustainable plastic management in agroecosystems.
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Affiliation(s)
- Aziz Khan
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China
| | - Zheng Jie
- National Key Laboratory of Cotton Bio-breeding and Integrated Utilization/Institute of Cotton Research, Chinese Academy of Agricultural Sciences (ICR, CAAS), Anyang, Henan, 455000, China
| | - Jing Wang
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China
| | - Jaya Nepal
- Department of Soil, Water & Ecosystem Sciences, Indian River Research Center, University of Florida, Fort Pierce, FL, USA
| | - Najeeb Ullah
- Agriculture Research Station, office of VP For Research and Graduate Studies, Qatar University, Doha, Qatar
| | - Ze-Ying Zhao
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China
| | - Peng-Yang Wang
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China
| | - Wiqar Ahmad
- Department of the Soil and Environmental Sciences, AMKC, The University of Agriculture, Peshawar, Pakistan
| | - Adnan Khan
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China
| | - Wei Wang
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China
| | - Meng-Ying Li
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China
| | - Wei Zhang
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China
| | | | - You-Cai Xiong
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China.
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Fibriana F, Upaichit A, Cheirsilp B. Promoting Magnusiomyces spicifer AW2 Cell-Bound Lipase Production by Co-culturing with Staphylococcus hominis AUP19 and Its Application in Solvent-Free Biodiesel Synthesis. Curr Microbiol 2023; 80:307. [PMID: 37515625 DOI: 10.1007/s00284-023-03394-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 06/28/2023] [Indexed: 07/31/2023]
Abstract
Yeast-bacterium interaction has recently been investigated to benefit the production of cell-bound lipases (CBLs). Staphylococcus hominis AUP19 supported the growth of Magnusiomyces spicifer AW2 in a palm oil mill effluent (POME) medium to produce CBLs through a bioremediation approach, including oil and grease (O&G) and chemical oxygen demand (COD) removals. This research used the yeast-bacterium co-culture to optimize CBLs and cell biomass (CBM) productions through bioremediation using the statistical Plackett-Burman design and response surface methodology-central composite design. The CBLs were finally applied in biodiesel synthesis. The CBM of 13.8 g/L with CBLs activity at 3391 U/L was achieved after incubation at room temperature (RT, 30 ± 2 °C) for 140 h in 50% POME medium, pH 7.0, containing 1.23% (w/v) ammonium sulfate. Bacterium promoted yeast growth to achieve bioremediation with 87.9% O&G removal and 84.5% COD removal. Time course study showed that the CBLs activity was highest at 24 h cultivation (4103 U/L) and retained 80% and 60% of activities at 4 °C and RT after 5 weeks of storage. The CBLs application successfully yielded 77.3% biodiesel from oleic acid (esterification) and 86.4% biodiesel from palm oil (transesterification) within 72 h in solvent-free systems. This study highlights that yeast-bacterium co-culture and POME should receive more attention for potential low-cost CBLs production through bioremediation, i.e., O&G and COD removals, while the CBLs as biocatalysts are promising for significant contribution to an effective strategy for economic green biodiesel production.
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Affiliation(s)
- Fidia Fibriana
- International Program of Biotechnology, Molecular Biotechnology Laboratory, Faculty of Agro-Industry, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
- Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang, Semarang, Central Java, 50229, Indonesia
| | - Apichat Upaichit
- International Program of Biotechnology, Molecular Biotechnology Laboratory, Faculty of Agro-Industry, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand.
- Center of Excellence in Innovative Biotechnology for Sustainable Utilization of Bioresources, Faculty of Agro-Industry, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand.
| | - Benjamas Cheirsilp
- Center of Excellence in Innovative Biotechnology for Sustainable Utilization of Bioresources, Faculty of Agro-Industry, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
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4
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Efficient acetoin production from pyruvate by engineered Halomonas bluephagenesis whole-cell biocatalysis. Front Chem Sci Eng 2023. [DOI: 10.1007/s11705-022-2229-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Yoshimoto S, Aoki S, Ohara Y, Ishikawa M, Suzuki A, Linke D, Lupas AN, Hori K. Identification of the adhesive domain of AtaA from Acinetobacter sp. Tol 5 and its application in immobilizing Escherichia coli. Front Bioeng Biotechnol 2023; 10:1095057. [PMID: 36698637 PMCID: PMC9868564 DOI: 10.3389/fbioe.2022.1095057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 12/21/2022] [Indexed: 01/11/2023] Open
Abstract
Cell immobilization is an important technique for efficiently utilizing whole-cell biocatalysts. We previously invented a method for bacterial cell immobilization using AtaA, a trimeric autotransporter adhesin from the highly sticky bacterium Acinetobacter sp. Tol 5. However, except for Acinetobacter species, only one bacterium has been successfully immobilized using AtaA. This is probably because the heterologous expression of large AtaA (1 MDa), that is a homotrimer of polypeptide chains composed of 3,630 amino acids, is difficult. In this study, we identified the adhesive domain of AtaA and constructed a miniaturized AtaA (mini-AtaA) to improve the heterologous expression of ataA. In-frame deletion mutants were used to perform functional mapping, revealing that the N-terminal head domain is essential for the adhesive feature of AtaA. The mini-AtaA, which contains a homotrimer of polypeptide chains from 775 amino acids and lacks the unnecessary part for its adhesion, was properly expressed in E. coli, and a larger amount of molecules was displayed on the cell surface than that of full-length AtaA (FL-AtaA). The immobilization ratio of E. coli cells expressing mini-AtaA on a polyurethane foam support was significantly higher compared to the cells with or without FL-AtaA expression, respectively. The expression of mini-AtaA in E. coli had little effect on the cell growth and the activity of another enzyme reflecting the production level, and the immobilized E. coli cells could be used for repetitive enzymatic reactions as a whole-cell catalyst.
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Affiliation(s)
- Shogo Yoshimoto
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Nagoya, Japan
| | - Sota Aoki
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Nagoya, Japan
| | - Yuki Ohara
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Nagoya, Japan
| | - Masahito Ishikawa
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Nagoya, Japan
| | - Atsuo Suzuki
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Nagoya, Japan
| | - Dirk Linke
- Department of Biosciences, University of Oslo, Oslo, Norway
| | - Andrei N. Lupas
- Department of Protein Evolution, Max Planck Institute for Biology, Tübingen, Germany
| | - Katsutoshi Hori
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Nagoya, Japan,*Correspondence: Katsutoshi Hori,
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6
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Zhao Z, Huang J, Xu L, Wang C, Cai J. One-step production of biodiesel by wet Escherichia coli cells expressing a non-specific and methanol-resistant lipase. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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7
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Bamigbade GB, Subhash AJ, Kamal-Eldin A, Nyström L, Ayyash M. An Updated Review on Prebiotics: Insights on Potentials of Food Seeds Waste as Source of Potential Prebiotics. Molecules 2022; 27:molecules27185947. [PMID: 36144679 PMCID: PMC9505924 DOI: 10.3390/molecules27185947] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Revised: 09/06/2022] [Accepted: 09/08/2022] [Indexed: 01/19/2023] Open
Abstract
Prebiotics are a group of biological nutrients that are capable of being degraded by microflora in the gastrointestinal tract (GIT), primarily Lactobacilli and Bifidobacteria. When prebiotics are ingested, either as a food additive or as a supplement, the colonic microflora degrade them, producing short-chain fatty acids (SCFA), which are simultaneously released in the colon and absorbed into the blood circulatory system. The two major groups of prebiotics that have been extensively studied in relation to human health are fructo-oligosaccharides (FOS) and galactooligosaccharides (GOS). The candidature of a compound to be regarded as a prebiotic is a function of how much of dietary fiber it contains. The seeds of fruits such as date palms have been reported to contain dietary fiber. An increasing awareness of the consumption of fruits and seeds as part of the daily diet, as well as poor storage systems for seeds, have generated an enormous amount of seed waste, which is traditionally discarded in landfills or incinerated. This cultural practice is hazardous to the environment because seed waste is rich in organic compounds that can produce hazardous gases. Therefore, this review discusses the potential use of seed wastes in prebiotic production, consequently reducing the environmental hazards posed by these wastes.
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Affiliation(s)
- Gafar Babatunde Bamigbade
- Department of Food Science, College of Agriculture and Veterinary Medicine, United Arab Emirates University (UAEU), Al-Ain P.O. Box 15551, United Arab Emirates
| | - Athira Jayasree Subhash
- Department of Food Science, College of Agriculture and Veterinary Medicine, United Arab Emirates University (UAEU), Al-Ain P.O. Box 15551, United Arab Emirates
| | - Afaf Kamal-Eldin
- Department of Food Science, College of Agriculture and Veterinary Medicine, United Arab Emirates University (UAEU), Al-Ain P.O. Box 15551, United Arab Emirates
| | - Laura Nyström
- Department of Health Science and Technology, Institute of Food, Nutrition and Health, ETH Zurich, 8092 Zurich, Switzerland
| | - Mutamed Ayyash
- Department of Food Science, College of Agriculture and Veterinary Medicine, United Arab Emirates University (UAEU), Al-Ain P.O. Box 15551, United Arab Emirates
- Correspondence:
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8
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Sharma A, Melo JS, Prakash R, Tejo Prakash N. Biomass suspension catalysed the generation of various alkyl esters from acid oil and virgin cottonseed oil. BIOCATAL BIOTRANSFOR 2022. [DOI: 10.1080/10242422.2022.2107427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Anirudh Sharma
- University Institute of Biotechnology, Chandigarh University, Mohali, India
| | | | - Ranjana Prakash
- School of Chemistry & Biochemistry, Thapar Institute of Engineering & Technology, Patiala, India
| | - N. Tejo Prakash
- School of Energy & Environment, Thapar Institute of Engineering & Technology, Patiala, India
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9
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Sun C, Zhang R, Xie C. Efficient Synthesis of (R)-(+)-Perillyl Alcohol From (R)-(+)-Limonene Using Engineered Escherichia coli Whole Cell Biocatalyst. Front Bioeng Biotechnol 2022; 10:900800. [PMID: 35547170 PMCID: PMC9084310 DOI: 10.3389/fbioe.2022.900800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 04/04/2022] [Indexed: 11/25/2022] Open
Abstract
(R)-(+)-perillyl alcohol is a much valued supplemental compound with a wide range of agricultural and pharmacological characteristics. The aim of this study was to improve (R)-(+)-perillyl alcohol production using a whole-cell catalytic formula. In this study, we employed plasmids with varying copy numbers to identify an appropriate strain, strain 03. We demonstrated that low levels of alKL provided maximal biocatalyst stability. Upon determination of the optimal conditions, the (R)-(+)-perillyl alcohol yield reached 130 mg/L. For cofactor regeneration, we constructed strain 10, expressing FDH from Candida boidinii, and achieved (R)-(+)-perillyl alcohol production of 230 mg/L. As a result, 1.23 g/L (R)-(+)-perillyl alcohol was transformed in a 5 L fermenter. Our proposed method facilitates an alternative approach to the economical biosynthesis of (R)-(+)-perillyl alcohol.
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Affiliation(s)
- Chao Sun
- A State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, China
- CAS Key Laboratory of Bio-Based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China
| | - Rubing Zhang
- CAS Key Laboratory of Bio-Based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China
- *Correspondence: Rubing Zhang, ; Congxia Xie,
| | - Congxia Xie
- A State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, China
- *Correspondence: Rubing Zhang, ; Congxia Xie,
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10
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Kumari A, Rajput VD, Mandzhieva SS, Rajput S, Minkina T, Kaur R, Sushkova S, Kumari P, Ranjan A, Kalinitchenko VP, Glinushkin AP. Microplastic Pollution: An Emerging Threat to Terrestrial Plants and Insights into Its Remediation Strategies. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11030340. [PMID: 35161320 PMCID: PMC8837937 DOI: 10.3390/plants11030340] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 01/13/2022] [Accepted: 01/19/2022] [Indexed: 05/06/2023]
Abstract
Microplastics (MPs) are ubiquitous and constitute a global hazard to the environment because of their robustness, resilience, and long-term presence in the ecosystem. For now, the majority of research has primarily focused on marine and freshwater ecosystems, with just a small amount of attention towards the terrestrial ecosystems. Although terrestrial ecosystems are recognized as the origins and routes for MPs to reach the sea, there is a paucity of knowledge about these ecological compartments, which is necessary for conducting effective ecological risk assessments. Moreover, because of their high persistence and widespread usage in agriculture, agribusiness, and allied sectors, the presence of MPs in arable soils is undoubtedly an undeniable and severe concern. Consequently, in the recent decade, the potential risk of MPs in food production, as well as their impact on plant growth and development, has received a great deal of interest. Thus, a thorough understanding of the fate and risks MPs, as well as prospective removal procedures for safe and viable agricultural operations in real-world circumstances, are urgently needed. Therefore, the current review is proposed to highlight the potential sources and interactions of MPs with agroecosystems and plants, along with their remediation strategies.
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Affiliation(s)
- Arpna Kumari
- Academy of Biology and Biotechnology, Southern Federal University, 344006 Rostov-on-Don, Russia; (S.S.M.); (T.M.); (S.S.); (A.R.)
- Correspondence: (A.K.); (V.D.R.); Tel.: +7-918-589-00-93 (V.D.R.)
| | - Vishnu D. Rajput
- Academy of Biology and Biotechnology, Southern Federal University, 344006 Rostov-on-Don, Russia; (S.S.M.); (T.M.); (S.S.); (A.R.)
- Correspondence: (A.K.); (V.D.R.); Tel.: +7-918-589-00-93 (V.D.R.)
| | - Saglara S. Mandzhieva
- Academy of Biology and Biotechnology, Southern Federal University, 344006 Rostov-on-Don, Russia; (S.S.M.); (T.M.); (S.S.); (A.R.)
| | - Sneh Rajput
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar 143005, India; (S.R.); (R.K.)
| | - Tatiana Minkina
- Academy of Biology and Biotechnology, Southern Federal University, 344006 Rostov-on-Don, Russia; (S.S.M.); (T.M.); (S.S.); (A.R.)
| | - Rajanbir Kaur
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar 143005, India; (S.R.); (R.K.)
| | - Svetlana Sushkova
- Academy of Biology and Biotechnology, Southern Federal University, 344006 Rostov-on-Don, Russia; (S.S.M.); (T.M.); (S.S.); (A.R.)
| | - Poonam Kumari
- Department of Biosciences, Himachal Pradesh University, Shimla 171005, India;
| | - Anuj Ranjan
- Academy of Biology and Biotechnology, Southern Federal University, 344006 Rostov-on-Don, Russia; (S.S.M.); (T.M.); (S.S.); (A.R.)
| | - Valery P. Kalinitchenko
- All-Russia Research Institute for Phytopathology RAS, 5 Institute St., Big Vyazyomy, 143050 Moscow, Russia; (V.P.K.); (A.P.G.)
- Institute of Fertility of Soils of South Russia, Krivoshlykova St., Persianovka, 346493 Moscow, Russia
| | - Alexey P. Glinushkin
- All-Russia Research Institute for Phytopathology RAS, 5 Institute St., Big Vyazyomy, 143050 Moscow, Russia; (V.P.K.); (A.P.G.)
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Thermostable lipases and their dynamics of improved enzymatic properties. Appl Microbiol Biotechnol 2021; 105:7069-7094. [PMID: 34487207 DOI: 10.1007/s00253-021-11520-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 07/29/2021] [Accepted: 07/31/2021] [Indexed: 10/20/2022]
Abstract
Thermal stability is one of the most desirable characteristics in the search for novel lipases. The search for thermophilic microorganisms for synthesising functional enzyme biocatalysts with the ability to withstand high temperature, and capacity to maintain their native state in extreme conditions opens up new opportunities for their biotechnological applications. Thermophilic organisms are one of the most favoured organisms, whose distinctive characteristics are extremely related to their cellular constituent particularly biologically active proteins. Modifications on the enzyme structure are critical in optimizing the stability of enzyme to thermophilic conditions. Thermostable lipases are one of the most favourable enzymes used in food industries, pharmaceutical field, and actively been studied as potential biocatalyst in biodiesel production and other biotechnology application. Particularly, there is a trade-off between the use of enzymes in high concentration of organic solvents and product generation. Enhancement of the enzyme stability needs to be achieved for them to maintain their enzymatic activity regardless the environment. Various approaches on protein modification applied since decades ago conveyed a better understanding on how to improve the enzymatic properties in thermophilic bacteria. In fact, preliminary approach using advanced computational analysis is practically conducted before any modification is being performed experimentally. Apart from that, isolation of novel extremozymes from various microorganisms are offering great frontier in explaining the crucial native interaction within the molecules which could help in protein engineering. In this review, the thermostability prospect of lipases and the utility of protein engineering insights into achieving functional industrial usefulness at their high temperature habitat are highlighted. Similarly, the underlying thermodynamic and structural basis that defines the forces that stabilize these thermostable lipase is discussed. KEY POINTS: • The dynamics of lipases contributes to their non-covalent interactions and structural stability. • Thermostability can be enhanced by well-established genetic tools for improved kinetic efficiency. • Molecular dynamics greatly provides structure-function insights on thermodynamics of lipase.
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12
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Sharma A, Melo JS, Prakash R, Tejo Prakash N. Lab-scale production of biodiesel from soybean acid oil using immobilized whole cells as catalyst. BIOCATAL BIOTRANSFOR 2021. [DOI: 10.1080/10242422.2021.1964486] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Anirudh Sharma
- University Institute of Biotechnology, Chandigarh University, Mohali, India
| | - Jose S. Melo
- NA&BTD, Bhabha Atomic Research Centre, Mumbai, India
| | - Ranjana Prakash
- School of Chemistry & Biochemistry, Thapar Institute of Engineering and Technology, Patiala, India
| | - N. Tejo Prakash
- School of Energy & Environment, Thapar Institute of Engineering and Technology, Patiala, India
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13
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Use of different kinds of wastes for lipase production: Inductive effect of waste cooking oil on activity. J Biosci Bioeng 2021; 132:234-240. [PMID: 34215524 DOI: 10.1016/j.jbiosc.2021.05.007] [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: 02/04/2021] [Revised: 05/22/2021] [Accepted: 05/30/2021] [Indexed: 10/21/2022]
Abstract
This study aimed to evaluate the effects of by-product molasses and waste orange peels (WOP) as the nutrient medium on lipase production with Rhizopus arrhizus NRRL 2286 and investigate the inductive effect of waste cooking oil (WCO) on activity. The results showed that the highest specific growth rate and the maximum biomass concentration were obtained 0.424 h-1 and 3.83 g dry weight/L for 70 g/L WOP, respectively. Additionally, the highest intracellular and extracellular lipase activities were attained in 50 g/L WOP as 400 U/g and 13.2 U/mL, correspondingly. Next, the inductive effects of WCO and olive oil were tested in lipase production. Intracellular lipase activity enhanced and reached a maximum of 520 U/g in the presence of 10 g/L WCO with an increase of 30% compared to the one without WCO. However, both inducers caused a diminish in extracellular lipase hydrolysis activity. Overall, this study reveals that the lipase production of R. arrhizus can be accomplished using WOP and WCO with the optimum conditions.
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Baloch KA, Upaichit A, Cheirsilp B, Fibriana F. The Occurrence of Triple Catalytic Characteristics of Yeast Lipases and Their Application Prospects in Biodiesel Production from Non-Edible Jatropha curcas Oil in a Solvent-Free System. Curr Microbiol 2021; 78:1914-1925. [PMID: 33835233 DOI: 10.1007/s00284-021-02448-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 03/10/2021] [Indexed: 10/21/2022]
Abstract
Extracellular and cell-bound lipase-producing yeasts were isolated from the palm oil mill wastes and investigated for their potential uses as biocatalysts in biodiesel production. Twenty-six yeast strains were qualitatively screened as lipase producers. From those yeast strains, only six were selected and screened further for quantitative lipase production.The phylogenetic affiliations of the yeast strains were confirmed by investigating the D1/D2 domains of 26S rDNA and ITS1-5.8S-ITS2 molecular regions of the six yeast strains selected as potent lipase producers. The three yeast strains A4C, 18B, and 10F showed a close association with Magnusiomyces capitatus. Two yeast strains (17B and AgB) had a close relationship with Saprochaete clavata, whereas the strain AW2 was identified as Magnusiomyces spicifer. Three main catalytic activities of the yeast lipases were evaluated and Magnusiomyces capitatus A4C, among the selected lipase-producing yeasts, had the highest extracellular lipolytic enzyme activity (969 U/L) with the cell-bound lipolytic enzyme activity of 11.3 U/gdm. The maximum cell-bound lipolytic activity (12.4 U/gdm) was observed in the cell-bound lipase fraction produced by Magnusiomyces spicifer AW2 with an extracellular lipolytic enzyme activity of 886 U/L. Based on the specific hydrolytic enzymatic activities, the cell-bound lipases (CBLs) from the three yeast strains M. capitatus A4C, M. spicifer AW2, and Saprochaete clavata 17B were further investigated for biodiesel production. Among them, the CBL from M. spicifer AW2 synthesized the most FAME (fatty acid methyl esters) at 81.2% within 12 h indicating that it has potential for application in enzymatic biodiesel production.
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Affiliation(s)
- Khurshid Ahmed Baloch
- Molecular Biotechnology Laboratory, Faculty of Agro-Industry, Prince of Songkla University, Hat Yai, 90112, Songkhla, Thailand.,Biotechnology for Bioresource Utilization Laboratory, Faculty of Agro-Industry, Prince of Songkla University, Hat Yai, 90112, Songkhla, Thailand
| | - Apichat Upaichit
- Molecular Biotechnology Laboratory, Faculty of Agro-Industry, Prince of Songkla University, Hat Yai, 90112, Songkhla, Thailand. .,Center of Excellence in Innovative Biotechnology for Sustainable Utilization of Bioresources, Faculty of Agro-Industry, Prince of Songkla University, Hat Yai, 90112, Songkhla, Thailand.
| | - Benjamas Cheirsilp
- Biotechnology for Bioresource Utilization Laboratory, Faculty of Agro-Industry, Prince of Songkla University, Hat Yai, 90112, Songkhla, Thailand.,Center of Excellence in Innovative Biotechnology for Sustainable Utilization of Bioresources, Faculty of Agro-Industry, Prince of Songkla University, Hat Yai, 90112, Songkhla, Thailand
| | - Fidia Fibriana
- Molecular Biotechnology Laboratory, Faculty of Agro-Industry, Prince of Songkla University, Hat Yai, 90112, Songkhla, Thailand.,Biotechnology for Bioresource Utilization Laboratory, Faculty of Agro-Industry, Prince of Songkla University, Hat Yai, 90112, Songkhla, Thailand.,Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang, Semarang, Central Java, 50229, Indonesia
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15
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Nunes PMB, Fraga JL, Ratier RB, Rocha-Leão MHM, Brígida AIS, Fickers P, Amaral PFF. Waste soybean frying oil for the production, extraction, and characterization of cell-wall-associated lipases from Yarrowia lipolytica. Bioprocess Biosyst Eng 2021; 44:809-818. [PMID: 33389167 DOI: 10.1007/s00449-020-02489-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Accepted: 11/19/2020] [Indexed: 11/29/2022]
Abstract
The lipolytic yeast Yarrowia lipolytica produces cell-wall-associated lipases, namely Lip7p and Lip8p, that could have interesting properties as catalyst either in free (released lipase fraction-RLF) or cell-associated (cell-bound lipase fraction-CBLF) forms. Herein, a mixture of waste soybean frying oil, yeast extract and bactopeptone was found to favor the enzyme production. Best parameters for lipase activation and release from the cell wall by means of acoustic wave treatment were defined as: 26 W/cm2 for 1 min for CBLF and 52 W/cm2 for 2 min for RLF. Optimal pH and temperature values for lipase activity together with storage conditions were similar for both the free enzyme and cell-associated one: pH 7.0; T = 37 °C; and > 70% residual activity for 60 days at 4, - 4 °C and for 15 days at 30 °C.
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Affiliation(s)
- Patrícia M B Nunes
- Escola de Química, Universidade Federal Do Rio de Janeiro, Av. Athos da Silveira Ramos, 149-CT, Bl. E, Ilha Do Fundão, Rio de Janeiro, RJ, 21941-909, Brazil
- Microbial Processes and Interactions, Terra Teaching and Research Centre, University of Liège-Gembloux Agro-Bio Tech, Av. de la Faculté 2B, 5030, Gelmbloux, Belgium
| | - Jully L Fraga
- Escola de Química, Universidade Federal Do Rio de Janeiro, Av. Athos da Silveira Ramos, 149-CT, Bl. E, Ilha Do Fundão, Rio de Janeiro, RJ, 21941-909, Brazil
| | - Rafael B Ratier
- Escola de Química, Universidade Federal Do Rio de Janeiro, Av. Athos da Silveira Ramos, 149-CT, Bl. E, Ilha Do Fundão, Rio de Janeiro, RJ, 21941-909, Brazil
| | - Maria Helena M Rocha-Leão
- Escola de Química, Universidade Federal Do Rio de Janeiro, Av. Athos da Silveira Ramos, 149-CT, Bl. E, Ilha Do Fundão, Rio de Janeiro, RJ, 21941-909, Brazil
| | - Ana I S Brígida
- Embrapa Agroindústria Tropical, Rua Doutora Sara Mesquita, 2270, Pici, Fortaleza, CE, 60511-110, Brazil
| | - Patrick Fickers
- Microbial Processes and Interactions, Terra Teaching and Research Centre, University of Liège-Gembloux Agro-Bio Tech, Av. de la Faculté 2B, 5030, Gelmbloux, Belgium
| | - Priscilla F F Amaral
- Escola de Química, Universidade Federal Do Rio de Janeiro, Av. Athos da Silveira Ramos, 149-CT, Bl. E, Ilha Do Fundão, Rio de Janeiro, RJ, 21941-909, Brazil.
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16
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Application of Heterogeneous Catalysts for Biodiesel Production from Microalgal Oil—A Review. Catalysts 2020. [DOI: 10.3390/catal10091025] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The depletion of fossil fuel reserves and increased environmental concerns related to fossil fuel production and combustion has forced the global communities to search for renewable fuels. In this regard, microalgae-based biodiesel has been considered as one of the interesting alternatives. Biodiesel production from the cultivation of microalgae is eco-friendly and sustainable. Moreover, microalgae have several advantages over other bioenergy sources, including their good photosynthetic capacity and faster growth rates. The productivity of microalgae per unit land area is also significantly higher than that of terrestrial plants. The produced microalgae biomass is rich with high quality lipids, which can be converted into biodiesel by transesterification reactions. Generally, the transesterification reactions are carried out in the presence of a homogeneous or heterogeneous catalyst. The homogeneous catalysts have many disadvantages, including their single use, slow reaction rate and saponification issues due to the presence of fatty acids in the feedstock. The acidic nature of the homogeneous catalysts also causes equipment corrosion. On the other hand, the heterogeneous catalysts offer several advantages, including their reusability, higher reaction rate and selectivity, easy product/catalyst separation and low cost. Due to these facts, the development of solid phase transesterification catalysts have been receiving growing interest. The present review is focused on the use of heterogeneous catalysts for biodiesel production from microalgal oil as a reliable feedstock with a comparison to other available feedstocks. It also highlights optimal reaction conditions for maximum biodiesel yields, reusability of the solid catalysts, cost, and environmental impact. The superior lipid content of microalgae and the efficient concurrent esterification and transesterification of the solid acid−base catalysts can offer new advancements in biodiesel production.
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17
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Youn W, Kim JY, Park J, Kim N, Choi H, Cho H, Choi IS. Single-Cell Nanoencapsulation: From Passive to Active Shells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1907001. [PMID: 32255241 DOI: 10.1002/adma.201907001] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 12/09/2019] [Accepted: 12/23/2019] [Indexed: 06/11/2023]
Abstract
Single-cell nanoencapsulation is an emerging field in cell-surface engineering, emphasizing the protection of living cells against external harmful stresses in vitro and in vivo. Inspired by the cryptobiotic state found in nature, cell-in-shell structures are formed, which are called artificial spores and which show suppression or retardation in cell growth and division and enhanced cell survival under harsh conditions. The property requirements of the shells suggested for realization of artificial spores, such as durability, permselectivity, degradability, and functionalizability, are demonstrated with various cytocompatible materials and processes. The first-generation shells in single-cell nanoencapsulation are passive in the operation mode, and do not biochemically regulate the cellular metabolism or activities. Recent advances indicate that the field has shifted further toward the formation of active shells. Such shells are intimately involved in the regulation and manipulation of biological processes. Not only endowing the cells with new properties that they do not possess in their native forms, active shells also regulate cellular metabolism and/or rewire biological pathways. Recent developments in shell formation for microbial and mammalian cells are discussed and an outlook on the field is given.
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Affiliation(s)
- Wongu Youn
- Center for Cell-Encapsulation Research, Department of Chemistry, KAIST, Daejeon, 34141, South Korea
| | - Ji Yup Kim
- Center for Cell-Encapsulation Research, Department of Chemistry, KAIST, Daejeon, 34141, South Korea
| | - Joohyouck Park
- Center for Cell-Encapsulation Research, Department of Chemistry, KAIST, Daejeon, 34141, South Korea
| | - Nayoung Kim
- Center for Cell-Encapsulation Research, Department of Chemistry, KAIST, Daejeon, 34141, South Korea
| | - Hyunwoo Choi
- Center for Cell-Encapsulation Research, Department of Chemistry, KAIST, Daejeon, 34141, South Korea
| | - Hyeoncheol Cho
- Center for Cell-Encapsulation Research, Department of Chemistry, KAIST, Daejeon, 34141, South Korea
| | - Insung S Choi
- Center for Cell-Encapsulation Research, Department of Chemistry, KAIST, Daejeon, 34141, South Korea
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18
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Das S, Behera S, Balasubramanian S. Orientational Switch of the Lipase A Enzyme at the Oil-Water Interface: An Order of Magnitude Increase in Turnover Rate with a Single Surfactant Tag Explained. J Phys Chem Lett 2020; 11:2977-2982. [PMID: 32202805 DOI: 10.1021/acs.jpclett.0c00470] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Interfacially active lipases can be immobilized at a biphasic interface to enhance turnover recyclability and to facilitate product separation. Extensive coarse-grained molecular dynamics simulations of lipase A (LipA) from Bacillus subtilis show a bimodal orientational distribution of the enzyme at an oil-water interface, arising from its ellipsoidal Janus particle-like character. The relative orientational preference can be tuned by pH. The simulations rationalize a rare experimental observation of an order of magnitude increase in the turnover rate of this lipase upon its noncovalent tagging by a single surfactant molecule at the interface, compared to its rate in bulk water. The adsorption free energy, the interfacial activation, a decrease in the number of orientational fluctuations, and an increased rate of translational diffusion, to all of which the Janus character of LipA contributes, are the factors responsible for this enhancement. This study can spur further investigations of the Janus behavior of enzymes to enhance their activity as well as to stabilize the biphasic emulsion needed for interfacial catalysis.
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Affiliation(s)
- Sudip Das
- Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560 064, India
| | - Sudarshan Behera
- Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560 064, India
| | - Sundaram Balasubramanian
- Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560 064, India
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19
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Abstract
The excessive consumption of petroleum resources leads to global warming, fast depletion of petroleum reserves, as well as price instability of gasoline. Thus, there is a strong need for alternative renewable fuels to replace petroleum-derived fuels. The striking features of an alternative fuel include the low carbon footprints, renewability and affordability at manageable prices. Biodiesel, made from waste oils, animal fats, vegetal oils, is a totally renewable and non-toxic liquid fuel which has gained significant attraction in the world. Due to technological advancements in catalytic chemistry, biodiesel can be produced from a variety of feedstock employing a variety of catalysts and recovery technologies. Recently, several ground-breaking advancements have been made in nano-catalyst technology which showed the symmetrical correlation with cost competitive biodiesel production. Nanocatalysts have unique properties such as their selective reactivity, high activation energy and controlled rate of reaction, easy recovery and recyclability. Here, we present an overview of various feedstock used for biodiesel production, their composition and characteristics. The major focus of this review is to appraise the characterization of nanocatalysts, their effect on biodiesel production and methodologies of biodiesel production.
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20
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Li X, Zhang X, Jian H, Xu X, Xi Y. Biocycle Fermentation Based on Lactic Acid Bacteria and Yeast for the Production of Natural Ethyl Lactate. ACS OMEGA 2019; 4:16009-16015. [PMID: 31592471 PMCID: PMC6777129 DOI: 10.1021/acsomega.9b02121] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 09/05/2019] [Indexed: 06/10/2023]
Abstract
Ethyl lactate is widely used in food and pharmaceutical industries, but the complexity of the synthesis process, in particular, involving the addition of organic solvents, hinders its application. Here, we report a natural green strategy to produce ethyl lactate by exploiting the synergistic fermentation of lactic acid bacteria and ester-producing microbes using biomass as a substrate. Interestingly, it is worth noting that the conjugate fermentation has a higher ethyl lactate yield (3.05 g/L) compared to the mixed fermentation (1.32 g/L). The ester production capacity was increased by 2.3 times. These entire processes require only the addition of biomass without introducing any organic solvent. In addition, the obtained catalytic esterification system can reuse the ester-producing microbes by simple centrifugation and maintain over seven cycles of catalysis while it retained a high activity. We firmly believe that the results of this study will provide new ideas for achieving sustainable green production of natural ethyl lactate.
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Affiliation(s)
- Xujuan Li
- College
of Food Science, South China Agricultural
University, Guangzhou 510642, China
| | - Xuanni Zhang
- College
of Food Science, South China Agricultural
University, Guangzhou 510642, China
| | - Huali Jian
- College
of Food Science, South China Agricultural
University, Guangzhou 510642, China
| | - Xuefeng Xu
- College
of Food Science, South China Agricultural
University, Guangzhou 510642, China
- SCAU
Food Institute Co. Ltd, Chaozhou 521000, China
| | - Yongkang Xi
- School
of Food Science and Technology, South China
University of Technology, Guangzhou 510640, China
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21
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Yang RL, Zhao XJ, Wu TT, Bilal M, Wang ZY, Luo HZ, Yang WJ. A novel and highly regioselective biocatalytic approach to acetylation of helicid by using whole-cell biocatalysts in organic solvents. CATAL COMMUN 2019. [DOI: 10.1016/j.catcom.2019.105707] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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22
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Li C, Jia P, Bai Y, Fan TP, Zheng X, Cai Y. Efficient Synthesis of Hydroxytyrosol from l-3,4-Dihydroxyphenylalanine Using Engineered Escherichia coli Whole Cells. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:6867-6873. [PMID: 31134807 DOI: 10.1021/acs.jafc.9b01856] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Hydroxytyrosol is a high-value-added compound with a variety of biological and pharmacological activities. In this study, a whole-cell catalytic method for the synthesis of hydroxytyrosol was developed: aromatic amino acid aminotransferase (TyrB), l-glutamate dehydrogenase (GDH), α-keto acid decarboxylase (PmKDC), and aldehyde reductase (YahK) were co-expressed in Escherichia coli to catalyze the synthesis of hydroxytyrosol from l-3,4-dihydroxyphenylalanine (l-DOPA). The plasmids with different copy numbers were used to balance the expression of the four enzymes, and the most appropriate strain (pRSF- yahK- tyrB and pCDF- gdh- Pmkdc) was identified. After determination of the optimum temperature (35 °C) and pH (7.5) for whole-cell catalysis, the yield of hydroxytyrosol reached 36.33 mM (5.59 g/L) and the space-time yield reached 0.70 g L-1 h-1.
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Affiliation(s)
- Chaozhi Li
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology , Jiangnan University , 1800 Lihu Road , Wuxi , Jiangsu 214122 , People's Republic of China
| | - Pu Jia
- College of Life Sciences , Northwest University , Xi'an , Shaanxi 710069 , People's Republic of China
| | - Yajun Bai
- College of Life Sciences , Northwest University , Xi'an , Shaanxi 710069 , People's Republic of China
| | - Tai-Ping Fan
- Department of Pharmacology , University of Cambridge , Cambridge CB2 1PD , United Kingdom
| | - Xiaohui Zheng
- College of Life Sciences , Northwest University , Xi'an , Shaanxi 710069 , People's Republic of China
| | - Yujie Cai
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology , Jiangnan University , 1800 Lihu Road , Wuxi , Jiangsu 214122 , People's Republic of China
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23
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Davani-Davari D, Negahdaripour M, Karimzadeh I, Seifan M, Mohkam M, Masoumi SJ, Berenjian A, Ghasemi Y. Prebiotics: Definition, Types, Sources, Mechanisms, and Clinical Applications. Foods 2019; 8:E92. [PMID: 30857316 PMCID: PMC6463098 DOI: 10.3390/foods8030092] [Citation(s) in RCA: 572] [Impact Index Per Article: 114.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 03/04/2019] [Accepted: 03/05/2019] [Indexed: 12/20/2022] Open
Abstract
Prebiotics are a group of nutrients that are degraded by gut microbiota. Their relationship with human overall health has been an area of increasing interest in recent years. They can feed the intestinal microbiota, and their degradation products are short-chain fatty acids that are released into blood circulation, consequently, affecting not only the gastrointestinal tracts but also other distant organs. Fructo-oligosaccharides and galacto-oligosaccharides are the two important groups of prebiotics with beneficial effects on human health. Since low quantities of fructo-oligosaccharides and galacto-oligosaccharides naturally exist in foods, scientists are attempting to produce prebiotics on an industrial scale. Considering the health benefits of prebiotics and their safety, as well as their production and storage advantages compared to probiotics, they seem to be fascinating candidates for promoting human health condition as a replacement or in association with probiotics. This review discusses different aspects of prebiotics, including their crucial role in human well-being.
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Affiliation(s)
- Dorna Davani-Davari
- Pharmaceutical Biotechnology Incubator, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz 71348, Iran.
| | - Manica Negahdaripour
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz 71348, Iran.
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz 71348, Iran.
| | - Iman Karimzadeh
- Department of Clinical Pharmacy, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz 71348, Iran.
| | - Mostafa Seifan
- Faculty of Science and Engineering, University of Waikato, Hamilton 3216, New Zealand.
| | - Milad Mohkam
- Biotechnology Research Center, Shiraz University of Medical Sciences, Shiraz 71348, Iran.
| | - Seyed Jalil Masoumi
- Nutrition Research Center, Department of Clinical Nutrition, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz 71348, Iran.
| | - Aydin Berenjian
- Faculty of Science and Engineering, University of Waikato, Hamilton 3216, New Zealand.
| | - Younes Ghasemi
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz 71348, Iran.
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz 71348, Iran.
- Nutrition Research Center, Department of Clinical Nutrition, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz 71348, Iran.
- Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz 71348, Iran.
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24
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Liu Y, Huang L, Fu Y, Zheng D, Ma J, Li Y, Xu Z, Lu F. A novel process for phosphatidylserine production using a Pichia pastoris whole-cell biocatalyst with overexpression of phospholipase D from Streptomyces halstedii in a purely aqueous system. Food Chem 2019; 274:535-542. [DOI: 10.1016/j.foodchem.2018.08.105] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 08/21/2018] [Accepted: 08/23/2018] [Indexed: 12/25/2022]
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25
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Biodegradation of Microplastic Derived from Poly(ethylene terephthalate) with Bacterial Whole-Cell Biocatalysts. Polymers (Basel) 2018; 10:polym10121326. [PMID: 30961251 PMCID: PMC6401706 DOI: 10.3390/polym10121326] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 11/23/2018] [Accepted: 11/23/2018] [Indexed: 01/18/2023] Open
Abstract
At present, the pollution of microplastic directly threatens ecology, food safety and even human health. Polyethylene terephthalate (PET) is one of the most common of microplastics. In this study, the micro-size PET particles were employed as analog of microplastic. The engineered strain, which can growth with PET as sole carbon source, was used as biocatalyst for biodegradation of PET particles. A combinatorial processing based on whole-cell biocatalysts was constructed for biodegradation of PET. Compared with enzymes, the products can be used by strain growth and do not accumulated in culture solution. Thus, feedback inhibition of products can be avoided. When PET was treated with the alkaline strain under high pH conditions, the product concentration was higher and the size of PET particles decreased dramatically than that of the biocatalyst under neutral conditions. This shows that the method of combined processing of alkali and organisms is more efficient for biodegradation of PET. The novel approach of combinatorial processing of PET based on whole-cell biocatalysis provides an attractive avenue for the biodegradation of micplastics.
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26
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Singh G, Sinha S, Bandyopadhyay KK, Lawrence M, Prasad R, Paul D. Triauxic growth of an oleaginous red yeast Rhodosporidium toruloides on waste 'extract' for enhanced and concomitant lipid and β-carotene production. Microb Cell Fact 2018; 17:182. [PMID: 30454058 PMCID: PMC6240951 DOI: 10.1186/s12934-018-1026-4] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2018] [Accepted: 11/11/2018] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND Vegetable 'mandi' (road-side vegetable market) waste was converted to a suitable fermentation medium for cultivation of oleaginous yeast Rhodosporidium toruloides by steaming under pressure. This cultivation medium derived from waste was found to be a comparatively better source of nutrients than standard culture media because it provided more than one type of usable carbon source(s) to yeast. RESULTS HPLC results showed that the extract contained glucose, xylose and glycerol along with other carbon sources, allowing triauxic growth pattern with preferably usage of glucose, xylose and glycerol resulting in enhanced growth, lipid and carotenoid production. Presence of saturated and unsaturated fatty acid methyl esters (FAMEs) (C14-20) in the lipid profile showed that the lipid may be transesterified for biodiesel production. CONCLUSION Upscaling these experiments to fermenter scale for the production of lipids and biodiesel and other industrially useful products would lead to waste management along with the production of value added commodities. The technique is thus environment friendly and gives good return upon investment.
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Affiliation(s)
- Gunjan Singh
- Amity Institute of Biotechnology, Amity University, Sec 125, Noida, Uttar Pradesh, 201313, India
| | - Sweta Sinha
- Amity Institute of Biotechnology, Amity University, Sec 125, Noida, Uttar Pradesh, 201313, India
| | - K K Bandyopadhyay
- Amity Institute of Biotechnology, Amity University, Sec 125, Noida, Uttar Pradesh, 201313, India
| | - Mark Lawrence
- Basic Sciences, College of Veterinary Medicine, Mississippi State University, Mississippi State, MS, 39762, USA
| | | | - Debarati Paul
- Amity Institute of Biotechnology, Amity University, Sec 125, Noida, Uttar Pradesh, 201313, India.
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27
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Fraga JL, Penha ACB, da S Pereira A, Silva KA, Akil E, Torres AG, Amaral PFF. Use of Yarrowia lipolytica Lipase Immobilized in Cell Debris for the Production of Lipolyzed Milk Fat (LMF). Int J Mol Sci 2018; 19:E3413. [PMID: 30384435 PMCID: PMC6274823 DOI: 10.3390/ijms19113413] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 10/15/2018] [Indexed: 11/16/2022] Open
Abstract
Lipase immobilized on Yarrowia lipolytica cell debris after sonication of yeast cells (LipImDebri) was used in hydrolysis reaction as a novel strategy to produce lipolyzed milk fat (LMF). Extracellular (4732.1 U/L), intracellular (130.0 U/g), and cell debris (181.0 U/g) lipases were obtained in a 4 L bioreactor using residual frying oil as inducer in 24 h fermentation process. LipImDebri showed a good operational stability retaining 70% of lipolytic activity after the second cycle and 40% after the fourth. The highest degree of hydrolysis (28%) was obtained with 500 mg LipImDebri for 6 h of lipolysis of anhydrous milk fat. LMF produced with LipImDebri presented high contents of oleic (35.2%), palmitic (25.0%), and stearic (15.4%) acids and considerable amounts of odor-active short and medium chain fatty acids (C:4⁻C:10) (8.13%).
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Affiliation(s)
- Jully L Fraga
- Escola de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ 21941-909, Brazil.
| | - Adrian C B Penha
- Escola de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ 21941-909, Brazil.
| | - Adejanildo da S Pereira
- Escola de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ 21941-909, Brazil.
| | - Kelly A Silva
- Escola de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ 21941-909, Brazil.
| | - Emília Akil
- Laboratório de Bioquímica Nutricional e de Alimentos, Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ 21941-909, Brazil.
| | - Alexandre G Torres
- Laboratório de Bioquímica Nutricional e de Alimentos, Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ 21941-909, Brazil.
| | - Priscilla F F Amaral
- Escola de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ 21941-909, Brazil.
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Tan SI, Han YL, Yu YJ, Chiu CY, Chang YK, Ouyang S, Fan KC, Lo KH, Ng IS. Efficient carbon dioxide sequestration by using recombinant carbonic anhydrase. Process Biochem 2018. [DOI: 10.1016/j.procbio.2018.08.017] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Abstract
The continuous flow synthesis of active pharmaceutical ingredients, value-added chemicals, and materials has grown tremendously over the past ten years. This revolution in chemical manufacturing has resulted from innovations in both new methodology and technology. This field, however, has been predominantly focused on synthetic organic chemistry, and the use of biocatalysts in continuous flow systems is only now becoming popular. Although immobilized enzymes and whole cells in batch systems are common, their continuous flow counterparts have grown rapidly over the past two years. With continuous flow systems offering improved mixing, mass transfer, thermal control, pressurized processing, decreased variation, automation, process analytical technology, and in-line purification, the combination of biocatalysis and flow chemistry opens powerful new process windows. This Review explores continuous flow biocatalysts with emphasis on new technology, enzymes, whole cells, co-factor recycling, and immobilization methods for the synthesis of pharmaceuticals, value-added chemicals, and materials.
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Affiliation(s)
- Joshua Britton
- Departments of Chemistry, Molecular Biology, and Biochemistry, University of California, Irvine, CA 92697-2025, USA.
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Viñambres M, Filice M, Marciello M. Modulation of the Catalytic Properties of Lipase B from Candida antarctica by Immobilization on Tailor-Made Magnetic Iron Oxide Nanoparticles: The Key Role of Nanocarrier Surface Engineering. Polymers (Basel) 2018; 10:E615. [PMID: 30966649 PMCID: PMC6404122 DOI: 10.3390/polym10060615] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 05/27/2018] [Accepted: 05/30/2018] [Indexed: 11/16/2022] Open
Abstract
The immobilization of biocatalysts on magnetic nanomaterial surface is a very attractive alternative to achieve enzyme nanoderivatives with highly improved properties. The combination between the careful tailoring of nanocarrier surfaces and the site-specific chemical modification of biomacromolecules is a crucial parameter to finely modulate the catalytic behavior of the biocatalyst. In this work, a useful strategy to immobilize chemically aminated lipase B from Candida antarctica on magnetic iron oxide nanoparticles (IONPs) by covalent multipoint attachment or hydrophobic physical adsorption upon previous tailored engineering of nanocarriers with poly-carboxylic groups (citric acid or succinic anhydride, CALBEDA@CA-NPs and CALBEDA@SA-NPs respectively) or hydrophobic layer (oleic acid, CALBEDA@OA-NPs) is described. After full characterization, the nanocatalysts have been assessed in the enantioselective kinetic resolution of racemic methyl mandelate. Depending on the immobilization strategy, each enzymatic nanoderivative permitted to selectively improve a specific property of the biocatalyst. In general, all the immobilization protocols permitted loading from good to high lipase amount (149 < immobilized lipase < 234 mg/gFe). The hydrophobic CALBEDA@OA-NPs was the most active nanocatalyst, whereas the covalent CALBEDA@CA-NPs and CALBEDA@SA-NPs were revealed to be the most thermostable and also the most enantioselective ones in the kinetic resolution reaction (almost 90% ee R-enantiomer). A strategy to maintain all these properties in long-time storage (up to 1 month) by freeze-drying was also optimized. Therefore, the nanocarrier surface engineering is demonstrated to be a key-parameter in the design and preparation of lipase libraries with enhanced catalytic properties.
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Affiliation(s)
- Mario Viñambres
- Department of Biomaterials and Bioinspired Material, Materials Science Institute of Madrid (ICMM-CSIC), Sor Juana Inés de la Cruz 3, Cantoblanco, 28049 Madrid, Spain.
| | - Marco Filice
- Department of Chemistry in Pharmaceutical Sciences, Faculty of Pharmacy, Complutense University (UCM), Plaza Ramón y Cajal, 28040 Madrid, Spain.
- National Research Centre for Cardiovascular Disease (CNIC), C/Melchor Fernández-Almagro 3, 28029 Madrid, Spain.
- Biomedical Research Networking Center for Respiratory Diseases (CIBERES), C/Melchor Fernández-Almagro 3, 28029 Madrid, Spain.
| | - Marzia Marciello
- Department of Biomaterials and Bioinspired Material, Materials Science Institute of Madrid (ICMM-CSIC), Sor Juana Inés de la Cruz 3, Cantoblanco, 28049 Madrid, Spain.
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Chen C, Cai D, Chen H, Cai J, Sun G, Qin P, Chen B, Zhen Y, Tan T. Simultaneous acetone-butanol-ethanol fermentation, gas stripping, and full-cell-catalyzed esterification for effective production of butyl oleate. Bioprocess Biosyst Eng 2018; 41:1329-1336. [PMID: 29846810 DOI: 10.1007/s00449-018-1960-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Accepted: 05/26/2018] [Indexed: 11/28/2022]
Abstract
In this study, aiming to improve the economic feasibility of acetone-butanol-ethanol (ABE) fermentation process, generate valuable products and extend the product chain, esterification catalyzed by Candida sp. 99-125 cells was hybrid with the ABE fermentation-gas-stripping integration system. The gas-stripping condensate that contained concentrated ABE products was directly used for esterification without the participation of toxic organic solvents. Full-cell catalysis temperature and the cell dosage rate on oleate production were evaluated and optimized in the esterification process. Under the optimized conditions (35 °C, 8% of cells), ~ 68% of butyl oleate and ~ 12% of ethyl oleate were obtained after 4 h of esterification. The Candida sp. 99-125 cells were able to be reused for at least four cycles. The novel cascade process showed environmental benefits, which also showed promising in improving the economic feasibility of the conventional ABE fermentation process.
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Affiliation(s)
- Changjing Chen
- National Energy R&D Center for Biorefinery, Beijing University of Chemical Technology, No.15, East Road of the North 3rd Ring, Chaoyang District, Beijing, 100029, People's Republic of China
| | - Di Cai
- National Energy R&D Center for Biorefinery, Beijing University of Chemical Technology, No.15, East Road of the North 3rd Ring, Chaoyang District, Beijing, 100029, People's Republic of China
| | - Huidong Chen
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China.,Center for Process Simulation and Optimization, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Jingyi Cai
- National Energy R&D Center for Biorefinery, Beijing University of Chemical Technology, No.15, East Road of the North 3rd Ring, Chaoyang District, Beijing, 100029, People's Republic of China
| | - Ganggang Sun
- National Energy R&D Center for Biorefinery, Beijing University of Chemical Technology, No.15, East Road of the North 3rd Ring, Chaoyang District, Beijing, 100029, People's Republic of China
| | - Peiyong Qin
- National Energy R&D Center for Biorefinery, Beijing University of Chemical Technology, No.15, East Road of the North 3rd Ring, Chaoyang District, Beijing, 100029, People's Republic of China.
| | - Biqiang Chen
- National Energy R&D Center for Biorefinery, Beijing University of Chemical Technology, No.15, East Road of the North 3rd Ring, Chaoyang District, Beijing, 100029, People's Republic of China.
| | - Yueju Zhen
- Shandong Jiqing Chemical Co. Ltd, Qingzhou, 262500, Shandong, People's Republic of China
| | - Tianwei Tan
- National Energy R&D Center for Biorefinery, Beijing University of Chemical Technology, No.15, East Road of the North 3rd Ring, Chaoyang District, Beijing, 100029, People's Republic of China
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Rajapriya G, Morya VK, Mai NL, Koo YM. Aspergillus niger whole-cell catalyzed synthesis of caffeic acid phenethyl ester in ionic liquids. Enzyme Microb Technol 2018; 111:67-73. [DOI: 10.1016/j.enzmictec.2017.10.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 08/30/2017] [Accepted: 10/14/2017] [Indexed: 01/17/2023]
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Joseph G, Wang L. Production of Biofuels from Biomass by Fungi. Fungal Biol 2018. [DOI: 10.1007/978-3-319-90379-8_2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Liu Y, Huang L, Zheng D, Fu Y, Shan M, Xu Z, Ma J, Lu F. Development of a Pichia pastoris whole-cell biocatalyst with overexpression of mutant lipase I PCLG47I from Penicillium cyclopium for biodiesel production. RSC Adv 2018; 8:26161-26168. [PMID: 35541942 PMCID: PMC9082943 DOI: 10.1039/c8ra04462g] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Accepted: 07/17/2018] [Indexed: 11/21/2022] Open
Abstract
Biodiesel is efficiently produced by a lipase whole-cell biocatalyst with high activity and thermostability at low temperature.
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Affiliation(s)
- Yihan Liu
- Key Laboratory of Industrial Fermentation Microbiology
- Ministry of Education
- Tianjin 300457
- P. R. China
- Tianjin Key Laboratory of Industrial Microbiology
| | - Lin Huang
- Key Laboratory of Industrial Fermentation Microbiology
- Ministry of Education
- Tianjin 300457
- P. R. China
- Tianjin Key Laboratory of Industrial Microbiology
| | - Dong Zheng
- Key Laboratory of Industrial Fermentation Microbiology
- Ministry of Education
- Tianjin 300457
- P. R. China
- The College of Biotechnology
| | - Yu Fu
- Key Laboratory of Industrial Fermentation Microbiology
- Ministry of Education
- Tianjin 300457
- P. R. China
- The College of Biotechnology
| | - Mengying Shan
- Tianjin Key Laboratory of Industrial Microbiology
- Tianjin 300457
- P. R. China
- The College of Biotechnology
- Tianjin University of Science and Technology
| | - Zehua Xu
- Tianjin Key Laboratory of Industrial Microbiology
- Tianjin 300457
- P. R. China
- The College of Biotechnology
- Tianjin University of Science and Technology
| | - Jieying Ma
- Tianjin Key Laboratory of Industrial Microbiology
- Tianjin 300457
- P. R. China
- The College of Biotechnology
- Tianjin University of Science and Technology
| | - Fuping Lu
- Key Laboratory of Industrial Fermentation Microbiology
- Ministry of Education
- Tianjin 300457
- P. R. China
- Tianjin Key Laboratory of Industrial Microbiology
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Yoshimoto S, Ohara Y, Nakatani H, Hori K. Reversible bacterial immobilization based on the salt-dependent adhesion of the bacterionanofiber protein AtaA. Microb Cell Fact 2017; 16:123. [PMID: 28720107 PMCID: PMC5516326 DOI: 10.1186/s12934-017-0740-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Accepted: 07/10/2017] [Indexed: 01/05/2023] Open
Abstract
Background Immobilization of microbial cells is an important strategy for the efficient use of whole-cell catalysts because it simplifies product separation, enables the cell concentration to be increased, stabilizes enzymatic activity, and permits repeated or continuous biocatalyst use. However, conventional immobilization methods have practical limitations, such as limited mass transfer in the inner part of a gel, gel fragility, cell leakage from the support matrix, and adverse effects on cell viability and catalytic activity. We previously showed a new method for bacterial cell immobilization using AtaA, a member of the trimeric autotransporter adhesin family found in Acinetobacter sp. Tol 5. This approach is expected to solve the drawbacks of conventional immobilization methods. However, similar to all other immobilization methods, the use of support materials increases the cost of bioprocesses and subsequent waste materials. Results We found that the stickiness of the AtaA molecule isolated from Tol 5 cells is drastically diminished at ionic strengths lower than 10 mM and that it cannot adhere in deionized water, which also inhibits cell adhesion mediated by AtaA. Cells immobilized on well plates and polyurethane foam in a salt solution were detached in deionized water by rinsing and shaking, respectively. The detached cells regained their adhesiveness in a salt solution and could rapidly be re-immobilized. The cells expressing the ataA gene maintained their adhesiveness throughout four repeated immobilization and detachment cycles and could be repeatedly immobilized to polyurethane foam by a 10-min shake in a flask. We also demonstrated that both bacterial cells and a support used in a reaction could be reused for a different type of reaction after detachment of the initially immobilized cells from the support and a subsequent immobilization step. Conclusions We invented a unique reversible immobilization method based on the salt-dependent adhesion of the AtaA molecule that allows us to reuse bacterial cells and supports by a simple manipulation involving a deionized water wash. This mitigates problems caused by the use of support materials and greatly helps to enhance the efficiency and productivity of microbial production processes. Electronic supplementary material The online version of this article (doi:10.1186/s12934-017-0740-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Shogo Yoshimoto
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan
| | - Yuki Ohara
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan
| | - Hajime Nakatani
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan
| | - Katsutoshi Hori
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan.
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36
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Wang P, Zhang L, Fisher R, Chen M, Liang S, Han S, Zheng S, Sui H, Lin Y. Accurate analysis of fusion expression of Pichia pastoris glycosylphosphatidylinositol-modified cell wall proteins. J Ind Microbiol Biotechnol 2017; 44:1355-1365. [PMID: 28660369 DOI: 10.1007/s10295-017-1962-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Accepted: 06/15/2017] [Indexed: 11/24/2022]
Abstract
Glycosylphosphatidylinositol (GPI)-anchored glycoproteins have diverse intrinsic functions in yeasts, and they also have different uses in vitro. The GPI-modified cell wall proteins GCW21, GCW51, and GCW61 of Pichia pastoris were chosen as anchoring proteins to construct co-expression strains in P. pastoris GS115. The hydrolytic activity and the amount of Candida antarctica lipase B (CALB) displayed on cell surface increased significantly following optimization of the fusion gene dosage and combination of the homogeneous or heterogeneous cell wall proteins. Maximum CALB hydrolytic activity was achieved at 4920 U/g dry cell weight in strain GS115/CALB-GCW (51 + 51 + 61 + 61) after 120 h of methanol induction. Changes in structural morphology and the properties of the cell surfaces caused by co-expression of fusion proteins were observed by transmission electron microscopy (TEM) and on plates containing cell-wall-destabilizing reagent. Our results suggested that both the outer and inner cell layers were significantly altered by overexpression of GPI-modified cell wall proteins. Interestingly, quantitative analysis of the inner layer components showed an increase in β-1,3-glucan, but no obvious changes in chitin in the strains overexpressing GPI-modified cell wall proteins.
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Affiliation(s)
- Pan Wang
- Guangdong Key Laboratory of Fermentation and Enzyme Engineering, School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, 510006, Guangdong, People's Republic of China
| | - Li Zhang
- Guangdong Key Laboratory of Fermentation and Enzyme Engineering, School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, 510006, Guangdong, People's Republic of China
| | - Rebecca Fisher
- Wadsworth Center, New York State Department of Health, Albany, NY, 12201, USA
| | - Meiqi Chen
- Guangdong Key Laboratory of Fermentation and Enzyme Engineering, School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, 510006, Guangdong, People's Republic of China
| | - Shuli Liang
- Guangdong Key Laboratory of Fermentation and Enzyme Engineering, School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, 510006, Guangdong, People's Republic of China
| | - Shuangyan Han
- Guangdong Key Laboratory of Fermentation and Enzyme Engineering, School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, 510006, Guangdong, People's Republic of China
| | - Suiping Zheng
- Guangdong Key Laboratory of Fermentation and Enzyme Engineering, School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, 510006, Guangdong, People's Republic of China
| | - Haixin Sui
- Wadsworth Center, New York State Department of Health, Albany, NY, 12201, USA
| | - Ying Lin
- Guangdong Key Laboratory of Fermentation and Enzyme Engineering, School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, 510006, Guangdong, People's Republic of China.
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Serres JDDS, Balmant W, Soares D, Corazza ML, Krieger N, Mitchell DA. A combined sorption and kinetic model for multiphasic ethyl esterification of fatty acids from soybean soapstock acid oil catalyzed by a fermented solid with lipase activity in a solvent-free system. Biochem Eng J 2017. [DOI: 10.1016/j.bej.2016.12.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Aulakh SS, Sharma A, Tejo Prakash N, Prakash R. Biocatalyzed esterification of oleic acid using cell suspension and dried biomass of Aspergillus sp. RBD01. BIOCATAL BIOTRANSFOR 2017. [DOI: 10.1080/10242422.2017.1292502] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
| | - Anirudh Sharma
- School of Chemistry and Biochemistry, Thapar University, Patiala, India and
| | - N. Tejo Prakash
- School of Energy and Environment, Thapar University, Patiala, India
| | - Ranjana Prakash
- School of Chemistry and Biochemistry, Thapar University, Patiala, India and
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de Carvalho CCCR. Whole cell biocatalysts: essential workers from Nature to the industry. Microb Biotechnol 2017; 10:250-263. [PMID: 27145540 PMCID: PMC5328830 DOI: 10.1111/1751-7915.12363] [Citation(s) in RCA: 140] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 03/28/2016] [Accepted: 03/31/2016] [Indexed: 11/30/2022] Open
Abstract
Microorganisms have been exposed to a myriad of substrates and environmental conditions throughout evolution resulting in countless metabolites and enzymatic activities. Although mankind have been using these properties for centuries, we have only recently learned to control their production, to develop new biocatalysts with high stability and productivity and to improve their yields under new operational conditions. However, microbial cells still provide the best known environment for enzymes, preventing conformational changes in the protein structure in non-conventional medium and under harsh reaction conditions, while being able to efficiently regenerate necessary cofactors and to carry out cascades of reactions. Besides, a still unknown microbe is probably already producing a compound that will cure cancer, Alzeihmer's disease or kill the most resistant pathogen. In this review, the latest developments in screening desirable activities and improving production yields are discussed.
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Affiliation(s)
- Carla C. C. R. de Carvalho
- iBB‐Institute for Bioengineering and BiosciencesDepartment of BioengineeringInstituto Superior TécnicoUniversidade de LisboaAv. Rovisco PaisLisbon1049‐001Portugal
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Das S, Karmakar T, Balasubramanian S. Molecular Mechanism behind Solvent Concentration-Dependent Optimal Activity of Thermomyces lanuginosus Lipase in a Biocompatible Ionic Liquid: Interfacial Activation through Arginine Switch. J Phys Chem B 2016; 120:11720-11732. [DOI: 10.1021/acs.jpcb.6b08534] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sudip Das
- Chemistry and Physics of
Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560064, India
| | - Tarak Karmakar
- Chemistry and Physics of
Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560064, India
| | - Sundaram Balasubramanian
- Chemistry and Physics of
Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560064, India
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Lipases from the genus Rhizopus : Characteristics, expression, protein engineering and application. Prog Lipid Res 2016; 64:57-68. [DOI: 10.1016/j.plipres.2016.08.001] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 06/24/2016] [Accepted: 08/01/2016] [Indexed: 11/22/2022]
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Chen G, Liu J, Qi Y, Yao J, Yan B. Biodiesel production using magnetic whole-cell biocatalysts by immobilization of Pseudomonas mendocina on Fe3O4-chitosan microspheres. Biochem Eng J 2016. [DOI: 10.1016/j.bej.2016.06.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Corradini MCC, Gomes RAB, Luiz JHH, Mendes AA. Optimization of Enzymatic Synthesis of n-Propyl Acetate (Fruit Flavor Ester) – Effect of the Support on the Properties of Biocatalysts. CHEM ENG COMMUN 2016. [DOI: 10.1080/00986445.2016.1201658] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
| | | | - Jaine H. H. Luiz
- Institute of Chemistry, Federal University of Alfenas, Alfenas, Brazil
| | - Adriano A. Mendes
- Institute of Chemistry, Federal University of Alfenas, Alfenas, Brazil
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Rahman Z, Rashid N, Nawab J, Ilyas M, Sung BH, Kim SC. Escherichia coli as a fatty acid and biodiesel factory: current challenges and future directions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:12007-12018. [PMID: 26961532 DOI: 10.1007/s11356-016-6367-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Accepted: 02/29/2016] [Indexed: 06/05/2023]
Abstract
Biodiesel has received widespread attention as a sustainable, environment-friendly, and alternative source of energy. It can be derived from plant, animal, and microbial organisms in the form of vegetable oil, fats, and lipids, respectively. However, biodiesel production from such sources is not economically feasible due to extensive downstream processes, such as trans-esterification and purification. To obtain cost-effective biodiesel, these bottlenecks need to be overcome. Escherichia coli, a model microorganism, has the potential to produce biodiesel directly from ligno-cellulosic sugars, bypassing trans-esterification. In this process, E. coli is engineered to produce biodiesel using metabolic engineering technology. The entire process of biodiesel production is carried out in a single microbial cell, bypassing the expensive downstream processing steps. This review focuses mainly on production of fatty acid and biodiesel in E. coli using metabolic engineering approaches. In the first part, we describe fatty acid biosynthesis in E. coli. In the second half, we discuss bottlenecks and strategies to enhance the production yield. A complete understanding of current developments in E. coli-based biodiesel production and pathway optimization strategies would reduce production costs for biofuels and plant-derived chemicals.
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Affiliation(s)
- Ziaur Rahman
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea.
- Department of Environmental and Conservation Sciences, University of Swat, Swat, 19130, Pakistan.
- Center for Biotechnology and Microbiology, University of Swat, Swat, Pakistan.
- Department of Microbiology, AWKUM, Mardan, Pakistan.
| | - Naim Rashid
- Department of Chemical Engineering, COMSATS, Lahore, Pakistan
| | - Javed Nawab
- Department of Environmental and Conservation Sciences, University of Swat, Swat, 19130, Pakistan
| | | | - Bong Hyun Sung
- Bioenergy and Biochemical Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Republic of Korea
| | - Sun Chang Kim
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea.
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Yang JW, Zheng DJ, Cui BD, Yang M, Chen YZ. RNA-seq transcriptome analysis of a Pseudomonas strain with diversified catalytic properties growth under different culture medium. Microbiologyopen 2016; 5:626-36. [PMID: 27061463 PMCID: PMC4985596 DOI: 10.1002/mbo3.357] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Revised: 02/23/2016] [Accepted: 03/03/2016] [Indexed: 11/11/2022] Open
Abstract
Biocatalysis is an emerging strategy for the production of enantio-pure organic molecules. However, lacking of commercially available enzymes restricts the widespread application of biocatalysis. In this study, we report a Pseudomonas strain which exhibited versatile oxidation activity to synthesize chiral sulfoxides when growing under M9-toluene medium and reduction activity to synthesize chiral alcohols when on Luria-Bertani (LB) medium, respectively. Further comparative transcriptome analysis on samples from these two cultural conditions has identified 1038 differentially expressed genes (DEG). Gene Ontology (GO) enrichment and KEGG pathways analysis demonstrate significant changes in protein synthesis, energy metabolism, and biosynthesis of metabolites when cells cultured under different conditions. We have identified eight candidate enzymes from this bacterial which may have the potential to be used for synthesis of chiral alcohol and sulfoxide chemicals. This work provides insights into the mechanism of diversity in catalytic properties of this Pseudomonas strain growth with different cultural conditions, as well as candidate enzymes for further biocatalysis of enantiomerically pure molecules and pharmaceuticals.
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Affiliation(s)
- Jia-Wei Yang
- Department of Biochemistry, Zunyi Medical University, Zunyi, 563003, China
| | - Dai-Jun Zheng
- School of Pharmacy, Zunyi Medical University, Zunyi, 563000, China
| | - Bao-Dong Cui
- Department of Biochemistry, Zunyi Medical University, Zunyi, 563003, China
| | - Min Yang
- School of Pharmacy, Zunyi Medical University, Zunyi, 563000, China
| | - Yong-Zheng Chen
- School of Pharmacy, Zunyi Medical University, Zunyi, 563000, China
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Vipin V, Sebastian J, Muraleedharan C, Santhiagu A. Enzymatic Transesterification of Rubber Seed Oil Using Rhizopus Oryzae Lipase. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.protcy.2016.08.201] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Odjadjare EC, Mutanda T, Olaniran AO. Potential biotechnological application of microalgae: a critical review. Crit Rev Biotechnol 2015; 37:37-52. [DOI: 10.3109/07388551.2015.1108956] [Citation(s) in RCA: 102] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Yan J, Yan Y, Madzak C, Han B. Harnessing biodiesel-producing microbes: from genetic engineering of lipase to metabolic engineering of fatty acid biosynthetic pathway. Crit Rev Biotechnol 2015; 37:26-36. [DOI: 10.3109/07388551.2015.1104531] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Displaying Lipase B from Candida antarctica in Pichia pastoris Using the Yeast Surface Display Approach: Prospection of a New Anchor and Characterization of the Whole Cell Biocatalyst. PLoS One 2015; 10:e0141454. [PMID: 26510006 PMCID: PMC4624902 DOI: 10.1371/journal.pone.0141454] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Accepted: 10/08/2015] [Indexed: 12/01/2022] Open
Abstract
Yeast Surface Display (YSD) is a strategy to anchor proteins on the yeast cell wall which has been employed to increase enzyme stability thus decreasing production costs. Lipase B from Candida antarctica (LipB) is one of the most studied enzymes in the context of industrial biotechnology. This study aimed to assess the biochemical features of this important biocatalyst when immobilized on the cell surface of the methylotrophic yeast Pichia pastoris using the YSD approach. For that purpose, two anchors were tested. The first (Flo9) was identified after a prospection of the P. pastoris genome being related to the family of flocculins similar to Flo1 but significantly smaller. The second is the Protein with Internal Repeats (Pir1) from P. pastoris. An immunolocalization assay showed that both anchor proteins were able to display the reporter protein EGFP in the yeast outer cell wall. LipB was expressed in P. pastoris fused either to Flo9 (FLOLIPB) or Pir1 (PIRLIPB). Both constructions showed hydrolytic activity towards tributyrin (>100 U/mgdcw and >80 U/mgdcw, respectively), optimal hydrolytic activity around 45°C and pH 7.0, higher thermostability at 45°C and stability in organic solvents when compared to a free lipase.
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Hama S, Ogino C, Kondo A. Enzymatic synthesis and modification of structured phospholipids: recent advances in enzyme preparation and biocatalytic processes. Appl Microbiol Biotechnol 2015; 99:7879-91. [DOI: 10.1007/s00253-015-6845-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 07/10/2015] [Accepted: 07/13/2015] [Indexed: 01/25/2023]
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